Nouveau - Aug 2014 - [PATCH 3/3] therm/nv84+: do not expose non-calibrated internal temp sensor

We will use this subdev to disable temperature reading on cards that did not
get a sensor calibration in the factory.

Signed-off-by: Martin Peres <martin.peres at free.fr>
---
 configure.ac                   |  1 +
 drm/Kbuild                     |  4 ++
 drm/core/include/subdev/fuse.h |  1 +
 drm/core/subdev/fuse/base.c    |  1 +
 drm/core/subdev/fuse/g80.c     |  1 +
 drm/core/subdev/fuse/gf100.c   |  1 +
 drm/core/subdev/fuse/gm107.c   |  1 +
 drm/core/subdev/fuse/priv.h    |  1 +
 nvkm/engine/device/gm100.c     |  2 +
 nvkm/engine/device/nv50.c      | 15 ++++++++
 nvkm/engine/device/nvc0.c      | 10 +++++
 nvkm/engine/device/nve0.c      |  8 ++++
 nvkm/include/core/device.h     |  1 +
 nvkm/include/subdev/fuse.h     | 30 +++++++++++++++
 nvkm/subdev/Makefile.am        |  3 +-
 nvkm/subdev/fuse/Makefile.am   |  8 ++++
 nvkm/subdev/fuse/base.c        | 62 +++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/g80.c         | 81 +++++++++++++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/gf100.c       | 83 ++++++++++++++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/gm107.c       | 66 +++++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/priv.h        |  9 +++++
 21 files changed, 388 insertions(+), 1 deletion(-)
 create mode 120000 drm/core/include/subdev/fuse.h
 create mode 120000 drm/core/subdev/fuse/base.c
 create mode 120000 drm/core/subdev/fuse/g80.c
 create mode 120000 drm/core/subdev/fuse/gf100.c
 create mode 120000 drm/core/subdev/fuse/gm107.c
 create mode 120000 drm/core/subdev/fuse/priv.h
 create mode 100644 nvkm/include/subdev/fuse.h
 create mode 100644 nvkm/subdev/fuse/Makefile.am
 create mode 100644 nvkm/subdev/fuse/base.c
 create mode 100644 nvkm/subdev/fuse/g80.c
 create mode 100644 nvkm/subdev/fuse/gf100.c
 create mode 100644 nvkm/subdev/fuse/gm107.c
 create mode 100644 nvkm/subdev/fuse/priv.h

diff --git a/configure.ac b/configure.ac
index de27156..b4404a5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -74,6 +74,7 @@ AC_OUTPUT( Makefile \
 	   nvkm/subdev/clock/Makefile \
 	   nvkm/subdev/devinit/Makefile \
 	   nvkm/subdev/fb/Makefile \
+	   nvkm/subdev/fuse/Makefile \
 	   nvkm/subdev/gpio/Makefile \
 	   nvkm/subdev/i2c/Makefile \
 	   nvkm/subdev/ibus/Makefile \
diff --git a/drm/Kbuild b/drm/Kbuild
index c663181..37ab09b 100644
--- a/drm/Kbuild
+++ b/drm/Kbuild
@@ -127,6 +127,10 @@ nouveau-y += core/subdev/fb/ramgk20a.o
 nouveau-y += core/subdev/fb/ramgm107.o
 nouveau-y += core/subdev/fb/sddr3.o
 nouveau-y += core/subdev/fb/gddr5.o
+nouveau-y += core/subdev/fuse/base.o
+nouveau-y += core/subdev/fuse/g80.o
+nouveau-y += core/subdev/fuse/gf100.o
+nouveau-y += core/subdev/fuse/gm107.o
 nouveau-y += core/subdev/gpio/base.o
 nouveau-y += core/subdev/gpio/nv10.o
 nouveau-y += core/subdev/gpio/nv50.o
diff --git a/drm/core/include/subdev/fuse.h b/drm/core/include/subdev/fuse.h
new file mode 120000
index 0000000..421fdd7
--- /dev/null
+++ b/drm/core/include/subdev/fuse.h
@@ -0,0 +1 @@
+../../../../nvkm/include/subdev/fuse.h
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/base.c b/drm/core/subdev/fuse/base.c
new file mode 120000
index 0000000..b218313
--- /dev/null
+++ b/drm/core/subdev/fuse/base.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/base.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/g80.c b/drm/core/subdev/fuse/g80.c
new file mode 120000
index 0000000..c805b0d
--- /dev/null
+++ b/drm/core/subdev/fuse/g80.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/g80.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/gf100.c b/drm/core/subdev/fuse/gf100.c
new file mode 120000
index 0000000..ad9411b
--- /dev/null
+++ b/drm/core/subdev/fuse/gf100.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/gf100.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/gm107.c b/drm/core/subdev/fuse/gm107.c
new file mode 120000
index 0000000..947b11c
--- /dev/null
+++ b/drm/core/subdev/fuse/gm107.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/gm107.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/priv.h b/drm/core/subdev/fuse/priv.h
new file mode 120000
index 0000000..b6dedaa
--- /dev/null
+++ b/drm/core/subdev/fuse/priv.h
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/priv.h
\ No newline at end of file
diff --git a/nvkm/engine/device/gm100.c b/nvkm/engine/device/gm100.c
index 9e9f567..6295668 100644
--- a/nvkm/engine/device/gm100.c
+++ b/nvkm/engine/device/gm100.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ gm100_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gm107_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &gm107_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/engine/device/nv50.c b/nvkm/engine/device/nv50.c
index 932f84f..ca265fe 100644
--- a/nvkm/engine/device/nv50.c
+++ b/nvkm/engine/device/nv50.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv50_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -87,6 +89,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -115,6 +118,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -143,6 +147,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -171,6 +176,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -199,6 +205,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -227,6 +234,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -255,6 +263,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -283,6 +292,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nvaa_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -311,6 +321,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nvaa_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -339,6 +350,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -369,6 +381,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -398,6 +411,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -427,6 +441,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/engine/device/nvc0.c b/nvkm/engine/device/nvc0.c
index b4a2917..89b9fd4 100644
--- a/nvkm/engine/device/nvc0.c
+++ b/nvkm/engine/device/nvc0.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -94,6 +96,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -126,6 +129,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -157,6 +161,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -189,6 +194,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -221,6 +227,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -252,6 +259,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -284,6 +292,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -315,6 +324,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  gf117_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/engine/device/nve0.c b/nvkm/engine/device/nve0.c
index cdf9147..b1b2e48 100644
--- a/nvkm/engine/device/nve0.c
+++ b/nvkm/engine/device/nve0.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -95,6 +97,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -128,6 +131,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -161,6 +165,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &gk20a_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_MC     ] =  gk20a_mc_oclass;
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &gk20a_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gk20a_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
@@ -180,6 +185,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -213,6 +219,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -246,6 +253,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/include/core/device.h b/nvkm/include/core/device.h
index 8743766..1d9d893 100644
--- a/nvkm/include/core/device.h
+++ b/nvkm/include/core/device.h
@@ -24,6 +24,7 @@ enum nv_subdev_type {
 	 * been created, and are allowed to assume any subdevs in the
 	 * list above them exist and have been initialised.
 	 */
+	NVDEV_SUBDEV_FUSE,
 	NVDEV_SUBDEV_MXM,
 	NVDEV_SUBDEV_MC,
 	NVDEV_SUBDEV_BUS,
diff --git a/nvkm/include/subdev/fuse.h b/nvkm/include/subdev/fuse.h
new file mode 100644
index 0000000..2b1ddb2
--- /dev/null
+++ b/nvkm/include/subdev/fuse.h
@@ -0,0 +1,30 @@
+#ifndef __NOUVEAU_FUSE_H__
+#define __NOUVEAU_FUSE_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_fuse {
+	struct nouveau_subdev base;
+};
+
+static inline struct nouveau_fuse *
+nouveau_fuse(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_FUSE];
+}
+
+#define nouveau_fuse_create(p, e, o, d)                                       
\
+	nouveau_fuse_create_((p), (e), (o), sizeof(**d), (void **)d)
+
+int  nouveau_fuse_create_(struct nouveau_object *, struct nouveau_object *,
+			  struct nouveau_oclass *, int, void **);
+void _nouveau_fuse_dtor(struct nouveau_object *);
+int  _nouveau_fuse_init(struct nouveau_object *);
+#define _nouveau_fuse_fini _nouveau_subdev_fini
+
+extern struct nouveau_oclass g80_fuse_oclass;
+extern struct nouveau_oclass gf100_fuse_oclass;
+extern struct nouveau_oclass gm107_fuse_oclass;
+
+#endif
diff --git a/nvkm/subdev/Makefile.am b/nvkm/subdev/Makefile.am
index c8eb147..5a48ddb 100644
--- a/nvkm/subdev/Makefile.am
+++ b/nvkm/subdev/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = bar bus bios clock devinit fb gpio i2c ibus instmem \
+SUBDIRS = bar bus bios clock devinit fb fuse gpio i2c ibus instmem \
 	  ltc mc mxm pwr therm timer vm volt
 
 noinst_LTLIBRARIES = libsubdev.la
@@ -10,6 +10,7 @@ libsubdev_la_LIBADD   = bar/libbar.la \
 			clock/libclock.la \
 			devinit/libdevinit.la \
 			fb/libfb.la \
+			fuse/libfuse.la \
 			gpio/libgpio.la \
 			i2c/libi2c.la \
 			ibus/libibus.la \
diff --git a/nvkm/subdev/fuse/Makefile.am b/nvkm/subdev/fuse/Makefile.am
new file mode 100644
index 0000000..5596d2c
--- /dev/null
+++ b/nvkm/subdev/fuse/Makefile.am
@@ -0,0 +1,8 @@
+noinst_LTLIBRARIES = libfuse.la
+
+libfuse_la_SOURCES = base.c \
+		    g80.c \
+		    gf100.c \
+		    gm107.c
+
+include $(srcdir)/../Makefile.subdev
diff --git a/nvkm/subdev/fuse/base.c b/nvkm/subdev/fuse/base.c
new file mode 100644
index 0000000..d249f2b
--- /dev/null
+++ b/nvkm/subdev/fuse/base.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include <subdev/fuse.h>
+
+int
+_nouveau_fuse_init(struct nouveau_object *object)
+{
+	struct nouveau_fuse *fuse = (void *)object;
+	int ret;
+
+	ret = nouveau_subdev_init(&fuse->base);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+void
+_nouveau_fuse_dtor(struct nouveau_object *object)
+{
+	struct nouveau_fuse *fuse = (void *)object;
+	nouveau_subdev_destroy(&fuse->base);
+}
+
+int
+nouveau_fuse_create_(struct nouveau_object *parent,
+		     struct nouveau_object *engine,
+		     struct nouveau_oclass *oclass, int length, void **pobject)
+{
+	struct nouveau_fuse *fuse;
+	int ret;
+
+	ret = nouveau_subdev_create_(parent, engine, oclass, 0, "FUSE",
+				     "fuse", length, pobject);
+	fuse = *pobject;
+	if (ret)
+		return ret;
+
+	return ret;
+}
diff --git a/nvkm/subdev/fuse/g80.c b/nvkm/subdev/fuse/g80.c
new file mode 100644
index 0000000..31ab5c7
--- /dev/null
+++ b/nvkm/subdev/fuse/g80.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include "priv.h"
+
+struct g80_fuse_priv {
+	struct nouveau_fuse base;
+
+	spinlock_t fuse_enable_lock;
+};
+
+static u32
+nouveau_fuse_rd32(struct nouveau_object *object, u64 addr)
+{
+	struct g80_fuse_priv *priv = (void *)object;
+	unsigned long flags;
+	u32 fuse_enable, val;
+
+	spin_lock_irqsave(&priv->fuse_enable_lock, flags);
+
+	/* racy if another part of nouveau start writing to this reg */
+	fuse_enable = nv_mask(priv, 0x1084, 0x800, 0x800);
+	val = nv_rd32(priv, 0x21000 + addr);
+	nv_wr32(priv, 0x1084, fuse_enable);
+
+	spin_unlock_irqrestore(&priv->fuse_enable_lock, flags);
+
+	return val;
+}
+
+
+static int
+g80_fuse_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct g80_fuse_priv *priv;
+	int ret;
+
+	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	spin_lock_init(&priv->fuse_enable_lock);
+
+	return 0;
+}
+
+struct nouveau_oclass
+g80_fuse_oclass = {
+	.handle = NV_SUBDEV(FUSE, 0x50),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = g80_fuse_ctor,
+		.dtor = _nouveau_fuse_dtor,
+		.init = _nouveau_fuse_init,
+		.fini = _nouveau_fuse_fini,
+		.rd32 = nouveau_fuse_rd32,
+	},
+};
diff --git a/nvkm/subdev/fuse/gf100.c b/nvkm/subdev/fuse/gf100.c
new file mode 100644
index 0000000..8407453
--- /dev/null
+++ b/nvkm/subdev/fuse/gf100.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include "priv.h"
+
+struct gf100_fuse_priv {
+	struct nouveau_fuse base;
+
+	spinlock_t fuse_enable_lock;
+};
+
+static u32
+nouveau_fuse_rd32(struct nouveau_object *object, u64 addr)
+{
+	struct gf100_fuse_priv *priv = (void *)object;
+	unsigned long flags;
+	u32 fuse_enable, unk, val;
+
+	spin_lock_irqsave(&priv->fuse_enable_lock, flags);
+
+	/* racy if another part of nouveau start writing to these regs */
+	fuse_enable = nv_mask(priv, 0x22400, 0x800, 0x800);
+	unk = nv_mask(priv, 0x21000, 0x1, 0x1);
+	val = nv_rd32(priv, 0x21100 + addr);
+	nv_wr32(priv, 0x21000, unk);
+	nv_wr32(priv, 0x22400, fuse_enable);
+
+	spin_unlock_irqrestore(&priv->fuse_enable_lock, flags);
+
+	return val;
+}
+
+
+static int
+gf100_fuse_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct gf100_fuse_priv *priv;
+	int ret;
+
+	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	spin_lock_init(&priv->fuse_enable_lock);
+
+	return 0;
+}
+
+struct nouveau_oclass
+gf100_fuse_oclass = {
+	.handle = NV_SUBDEV(FUSE, 0xC0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gf100_fuse_ctor,
+		.dtor = _nouveau_fuse_dtor,
+		.init = _nouveau_fuse_init,
+		.fini = _nouveau_fuse_fini,
+		.rd32 = nouveau_fuse_rd32,
+	},
+};
diff --git a/nvkm/subdev/fuse/gm107.c b/nvkm/subdev/fuse/gm107.c
new file mode 100644
index 0000000..4ade700
--- /dev/null
+++ b/nvkm/subdev/fuse/gm107.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include "priv.h"
+
+struct gm107_fuse_priv {
+	struct nouveau_fuse base;
+};
+
+static u32
+nouveau_fuse_rd32(struct nouveau_object *object, u64 addr)
+{
+	struct gf100_fuse_priv *priv = (void *)object;
+
+	return nv_rd32(priv, 0x21100 + addr);
+}
+
+
+static int
+gm107_fuse_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct gm107_fuse_priv *priv;
+	int ret;
+
+	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+struct nouveau_oclass
+gm107_fuse_oclass = {
+	.handle = NV_SUBDEV(FUSE, 0x117),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gm107_fuse_ctor,
+		.dtor = _nouveau_fuse_dtor,
+		.init = _nouveau_fuse_init,
+		.fini = _nouveau_fuse_fini,
+		.rd32 = nouveau_fuse_rd32,
+	},
+};
diff --git a/nvkm/subdev/fuse/priv.h b/nvkm/subdev/fuse/priv.h
new file mode 100644
index 0000000..d208541
--- /dev/null
+++ b/nvkm/subdev/fuse/priv.h
@@ -0,0 +1,9 @@
+#ifndef __NVKM_FUSE_PRIV_H__
+#define __NVKM_FUSE_PRIV_H__
+
+#include <subdev/fuse.h>
+
+int _nouveau_fuse_init(struct nouveau_object *object);
+void _nouveau_fuse_dtor(struct nouveau_object *object);
+
+#endif
-- 
2.0.0

One of my nv92 has a calibrated internal sensor but it displays 0?C
as the default values use sw calibration values to force the temperature
to 0.

Since we cannot read the temperature from the adt7473 present on this board,
let's re-enable the internal reading!

Signed-off-by: Martin Peres <martin.peres at free.fr>
---
 nvkm/subdev/therm/nv84.c | 31 ++++++++++++++++++++++++++++++-
 nvkm/subdev/therm/nva3.c |  2 ++
 nvkm/subdev/therm/nvd0.c |  2 ++
 nvkm/subdev/therm/priv.h |  1 +
 4 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/nvkm/subdev/therm/nv84.c b/nvkm/subdev/therm/nv84.c
index 1d15c52..38b16d9 100644
--- a/nvkm/subdev/therm/nv84.c
+++ b/nvkm/subdev/therm/nv84.c
@@ -24,6 +24,7 @@
  */
 
 #include "priv.h"
+#include <subdev/fuse.h>
 
 struct nv84_therm_priv {
 	struct nouveau_therm_priv base;
@@ -35,6 +36,19 @@ nv84_temp_get(struct nouveau_therm *therm)
 	return nv_rd32(therm, 0x20400);
 }
 
+void
+nv84_sensor_setup(struct nouveau_therm *therm)
+{
+	struct nouveau_fuse *fuse = nouveau_fuse(therm);
+
+	/* enable temperature reading for cards with insane defaults */
+	if (nv_ro32(fuse, 0x1a8) == 1) {
+		nv_mask(therm, 0x20008, 0x80008000, 0x80000000);
+		nv_mask(therm, 0x2000c, 0x80000003, 0x00000000);
+		mdelay(20); /* wait for the temperature to stabilize */
+	}
+}
+
 static void
 nv84_therm_program_alarms(struct nouveau_therm *therm)
 {
@@ -171,6 +185,21 @@ nv84_therm_intr(struct nouveau_subdev *subdev)
 }
 
 static int
+nv84_therm_init(struct nouveau_object *object)
+{
+	struct nv84_therm_priv *priv = (void *)object;
+	int ret;
+
+	ret = nouveau_therm_init(&priv->base.base);
+	if (ret)
+		return ret;
+
+	nv84_sensor_setup(&priv->base.base);
+
+	return 0;
+}
+
+static int
 nv84_therm_ctor(struct nouveau_object *parent,
 		struct nouveau_object *engine,
 		struct nouveau_oclass *oclass, void *data, u32 size,
@@ -228,7 +257,7 @@ nv84_therm_oclass = {
 	.ofuncs = &(struct nouveau_ofuncs) {
 		.ctor = nv84_therm_ctor,
 		.dtor = _nouveau_therm_dtor,
-		.init = _nouveau_therm_init,
+		.init = nv84_therm_init,
 		.fini = nv84_therm_fini,
 	},
 };
diff --git a/nvkm/subdev/therm/nva3.c b/nvkm/subdev/therm/nva3.c
index 0478b2e..7893357 100644
--- a/nvkm/subdev/therm/nva3.c
+++ b/nvkm/subdev/therm/nva3.c
@@ -51,6 +51,8 @@ nva3_therm_init(struct nouveau_object *object)
 	if (ret)
 		return ret;
 
+	nv84_sensor_setup(&priv->base.base);
+
 	/* enable fan tach, count revolutions per-second */
 	nv_mask(priv, 0x00e720, 0x00000003, 0x00000002);
 	if (tach->func != DCB_GPIO_UNUSED) {
diff --git a/nvkm/subdev/therm/nvd0.c b/nvkm/subdev/therm/nvd0.c
index 04bb84f..b70f7cc 100644
--- a/nvkm/subdev/therm/nvd0.c
+++ b/nvkm/subdev/therm/nvd0.c
@@ -150,6 +150,8 @@ nvd0_therm_ctor(struct nouveau_object *parent,
 	if (ret)
 		return ret;
 
+	nv84_sensor_setup(&priv->base.base);
+
 	priv->base.base.pwm_ctrl = nvd0_fan_pwm_ctrl;
 	priv->base.base.pwm_get = nvd0_fan_pwm_get;
 	priv->base.base.pwm_set = nvd0_fan_pwm_set;
diff --git a/nvkm/subdev/therm/priv.h b/nvkm/subdev/therm/priv.h
index 4262d1d..7dba8c2 100644
--- a/nvkm/subdev/therm/priv.h
+++ b/nvkm/subdev/therm/priv.h
@@ -145,6 +145,7 @@ int nv50_fan_pwm_get(struct nouveau_therm *, int, u32 *, u32
*);
 int nv50_fan_pwm_set(struct nouveau_therm *, int, u32, u32);
 int nv50_fan_pwm_clock(struct nouveau_therm *, int);
 int nv84_temp_get(struct nouveau_therm *therm);
+void nv84_sensor_setup(struct nouveau_therm *therm);
 int nv84_therm_fini(struct nouveau_object *object, bool suspend);
 
 int nva3_therm_fan_sense(struct nouveau_therm *);
-- 
2.0.0

Signed-off-by: Martin Peres <martin.peres at free.fr>
---
 nvkm/subdev/therm/nv84.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/nvkm/subdev/therm/nv84.c b/nvkm/subdev/therm/nv84.c
index 38b16d9..14e2e09 100644
--- a/nvkm/subdev/therm/nv84.c
+++ b/nvkm/subdev/therm/nv84.c
@@ -33,7 +33,12 @@ struct nv84_therm_priv {
 int
 nv84_temp_get(struct nouveau_therm *therm)
 {
-	return nv_rd32(therm, 0x20400);
+	struct nouveau_fuse *fuse = nouveau_fuse(therm);
+
+	if (nv_ro32(fuse, 0x1a8) == 1)
+		return nv_rd32(therm, 0x20400);
+	else
+		return -ENODEV;
 }
 
 void
-- 
2.0.0

Hi Martin,

I'm not very familiar with the function naming scheme but shouldn't 
nouveau_fuse_rd32 use the same prefix as xxxx_fuse_ctor instead of nouveau?

Christian

Le 24/08/2014 23:15, Martin Peres a ?crit :
> We will use this subdev to disable temperature reading on cards that did
not
> get a sensor calibration in the factory.
>
> Signed-off-by: Martin Peres <martin.peres at free.fr>
> ---
>   configure.ac                   |  1 +
>   drm/Kbuild                     |  4 ++
>   drm/core/include/subdev/fuse.h |  1 +
>   drm/core/subdev/fuse/base.c    |  1 +
>   drm/core/subdev/fuse/g80.c     |  1 +
>   drm/core/subdev/fuse/gf100.c   |  1 +
>   drm/core/subdev/fuse/gm107.c   |  1 +
>   drm/core/subdev/fuse/priv.h    |  1 +
>   nvkm/engine/device/gm100.c     |  2 +
>   nvkm/engine/device/nv50.c      | 15 ++++++++
>   nvkm/engine/device/nvc0.c      | 10 +++++
>   nvkm/engine/device/nve0.c      |  8 ++++
>   nvkm/include/core/device.h     |  1 +
>   nvkm/include/subdev/fuse.h     | 30 +++++++++++++++
>   nvkm/subdev/Makefile.am        |  3 +-
>   nvkm/subdev/fuse/Makefile.am   |  8 ++++
>   nvkm/subdev/fuse/base.c        | 62 +++++++++++++++++++++++++++++++
>   nvkm/subdev/fuse/g80.c         | 81
+++++++++++++++++++++++++++++++++++++++++
>   nvkm/subdev/fuse/gf100.c       | 83
++++++++++++++++++++++++++++++++++++++++++
>   nvkm/subdev/fuse/gm107.c       | 66 +++++++++++++++++++++++++++++++++
>   nvkm/subdev/fuse/priv.h        |  9 +++++
>   21 files changed, 388 insertions(+), 1 deletion(-)
>   create mode 120000 drm/core/include/subdev/fuse.h
>   create mode 120000 drm/core/subdev/fuse/base.c
>   create mode 120000 drm/core/subdev/fuse/g80.c
>   create mode 120000 drm/core/subdev/fuse/gf100.c
>   create mode 120000 drm/core/subdev/fuse/gm107.c
>   create mode 120000 drm/core/subdev/fuse/priv.h
>   create mode 100644 nvkm/include/subdev/fuse.h
>   create mode 100644 nvkm/subdev/fuse/Makefile.am
>   create mode 100644 nvkm/subdev/fuse/base.c
>   create mode 100644 nvkm/subdev/fuse/g80.c
>   create mode 100644 nvkm/subdev/fuse/gf100.c
>   create mode 100644 nvkm/subdev/fuse/gm107.c
>   create mode 100644 nvkm/subdev/fuse/priv.h
>
> diff --git a/configure.ac b/configure.ac
> index de27156..b4404a5 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -74,6 +74,7 @@ AC_OUTPUT( Makefile \
>   	   nvkm/subdev/clock/Makefile \
>   	   nvkm/subdev/devinit/Makefile \
>   	   nvkm/subdev/fb/Makefile \
> +	   nvkm/subdev/fuse/Makefile \
>   	   nvkm/subdev/gpio/Makefile \
>   	   nvkm/subdev/i2c/Makefile \
>   	   nvkm/subdev/ibus/Makefile \
> diff --git a/drm/Kbuild b/drm/Kbuild
> index c663181..37ab09b 100644
> --- a/drm/Kbuild
> +++ b/drm/Kbuild
> @@ -127,6 +127,10 @@ nouveau-y += core/subdev/fb/ramgk20a.o
>   nouveau-y += core/subdev/fb/ramgm107.o
>   nouveau-y += core/subdev/fb/sddr3.o
>   nouveau-y += core/subdev/fb/gddr5.o
> +nouveau-y += core/subdev/fuse/base.o
> +nouveau-y += core/subdev/fuse/g80.o
> +nouveau-y += core/subdev/fuse/gf100.o
> +nouveau-y += core/subdev/fuse/gm107.o
>   nouveau-y += core/subdev/gpio/base.o
>   nouveau-y += core/subdev/gpio/nv10.o
>   nouveau-y += core/subdev/gpio/nv50.o
> diff --git a/drm/core/include/subdev/fuse.h
b/drm/core/include/subdev/fuse.h
> new file mode 120000
> index 0000000..421fdd7
> --- /dev/null
> +++ b/drm/core/include/subdev/fuse.h
> @@ -0,0 +1 @@
> +../../../../nvkm/include/subdev/fuse.h
> \ No newline at end of file
> diff --git a/drm/core/subdev/fuse/base.c b/drm/core/subdev/fuse/base.c
> new file mode 120000
> index 0000000..b218313
> --- /dev/null
> +++ b/drm/core/subdev/fuse/base.c
> @@ -0,0 +1 @@
> +../../../../nvkm/subdev/fuse/base.c
> \ No newline at end of file
> diff --git a/drm/core/subdev/fuse/g80.c b/drm/core/subdev/fuse/g80.c
> new file mode 120000
> index 0000000..c805b0d
> --- /dev/null
> +++ b/drm/core/subdev/fuse/g80.c
> @@ -0,0 +1 @@
> +../../../../nvkm/subdev/fuse/g80.c
> \ No newline at end of file
> diff --git a/drm/core/subdev/fuse/gf100.c b/drm/core/subdev/fuse/gf100.c
> new file mode 120000
> index 0000000..ad9411b
> --- /dev/null
> +++ b/drm/core/subdev/fuse/gf100.c
> @@ -0,0 +1 @@
> +../../../../nvkm/subdev/fuse/gf100.c
> \ No newline at end of file
> diff --git a/drm/core/subdev/fuse/gm107.c b/drm/core/subdev/fuse/gm107.c
> new file mode 120000
> index 0000000..947b11c
> --- /dev/null
> +++ b/drm/core/subdev/fuse/gm107.c
> @@ -0,0 +1 @@
> +../../../../nvkm/subdev/fuse/gm107.c
> \ No newline at end of file
> diff --git a/drm/core/subdev/fuse/priv.h b/drm/core/subdev/fuse/priv.h
> new file mode 120000
> index 0000000..b6dedaa
> --- /dev/null
> +++ b/drm/core/subdev/fuse/priv.h
> @@ -0,0 +1 @@
> +../../../../nvkm/subdev/fuse/priv.h
> \ No newline at end of file
> diff --git a/nvkm/engine/device/gm100.c b/nvkm/engine/device/gm100.c
> index 9e9f567..6295668 100644
> --- a/nvkm/engine/device/gm100.c
> +++ b/nvkm/engine/device/gm100.c
> @@ -26,6 +26,7 @@
>   #include <subdev/bus.h>
>   #include <subdev/gpio.h>
>   #include <subdev/i2c.h>
> +#include <subdev/fuse.h>
>   #include <subdev/clock.h>
>   #include <subdev/therm.h>
>   #include <subdev/mxm.h>
> @@ -62,6 +63,7 @@ gm100_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gm107_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &gm107_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> diff --git a/nvkm/engine/device/nv50.c b/nvkm/engine/device/nv50.c
> index 932f84f..ca265fe 100644
> --- a/nvkm/engine/device/nv50.c
> +++ b/nvkm/engine/device/nv50.c
> @@ -26,6 +26,7 @@
>   #include <subdev/bus.h>
>   #include <subdev/gpio.h>
>   #include <subdev/i2c.h>
> +#include <subdev/fuse.h>
>   #include <subdev/clock.h>
>   #include <subdev/therm.h>
>   #include <subdev/mxm.h>
> @@ -62,6 +63,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv50_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv50_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -87,6 +89,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -115,6 +118,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -143,6 +147,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -171,6 +176,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -199,6 +205,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -227,6 +234,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -255,6 +263,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -283,6 +292,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nvaa_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -311,6 +321,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nvaa_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -339,6 +350,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -369,6 +381,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -398,6 +411,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -427,6 +441,7 @@ nv50_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> diff --git a/nvkm/engine/device/nvc0.c b/nvkm/engine/device/nvc0.c
> index b4a2917..89b9fd4 100644
> --- a/nvkm/engine/device/nvc0.c
> +++ b/nvkm/engine/device/nvc0.c
> @@ -26,6 +26,7 @@
>   #include <subdev/bus.h>
>   #include <subdev/gpio.h>
>   #include <subdev/i2c.h>
> +#include <subdev/fuse.h>
>   #include <subdev/clock.h>
>   #include <subdev/therm.h>
>   #include <subdev/mxm.h>
> @@ -62,6 +63,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -94,6 +96,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -126,6 +129,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -157,6 +161,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -189,6 +194,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -221,6 +227,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -252,6 +259,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -284,6 +292,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -315,6 +324,7 @@ nvc0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  gf117_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> diff --git a/nvkm/engine/device/nve0.c b/nvkm/engine/device/nve0.c
> index cdf9147..b1b2e48 100644
> --- a/nvkm/engine/device/nve0.c
> +++ b/nvkm/engine/device/nve0.c
> @@ -26,6 +26,7 @@
>   #include <subdev/bus.h>
>   #include <subdev/gpio.h>
>   #include <subdev/i2c.h>
> +#include <subdev/fuse.h>
>   #include <subdev/clock.h>
>   #include <subdev/therm.h>
>   #include <subdev/mxm.h>
> @@ -62,6 +63,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -95,6 +97,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -128,6 +131,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -161,6 +165,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &gk20a_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_MC     ] =  gk20a_mc_oclass;
>   		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_TIMER  ] = &gk20a_timer_oclass;
>   		device->oclass[NVDEV_SUBDEV_FB     ] =  gk20a_fb_oclass;
>   		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
> @@ -180,6 +185,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -213,6 +219,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> @@ -246,6 +253,7 @@ nve0_identify(struct nouveau_device *device)
>   		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
>   		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
>   		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
> +		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
>   		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
>   		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
>   		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
> diff --git a/nvkm/include/core/device.h b/nvkm/include/core/device.h
> index 8743766..1d9d893 100644
> --- a/nvkm/include/core/device.h
> +++ b/nvkm/include/core/device.h
> @@ -24,6 +24,7 @@ enum nv_subdev_type {
>   	 * been created, and are allowed to assume any subdevs in the
>   	 * list above them exist and have been initialised.
>   	 */
> +	NVDEV_SUBDEV_FUSE,
>   	NVDEV_SUBDEV_MXM,
>   	NVDEV_SUBDEV_MC,
>   	NVDEV_SUBDEV_BUS,
> diff --git a/nvkm/include/subdev/fuse.h b/nvkm/include/subdev/fuse.h
> new file mode 100644
> index 0000000..2b1ddb2
> --- /dev/null
> +++ b/nvkm/include/subdev/fuse.h
> @@ -0,0 +1,30 @@
> +#ifndef __NOUVEAU_FUSE_H__
> +#define __NOUVEAU_FUSE_H__
> +
> +#include <core/subdev.h>
> +#include <core/device.h>
> +
> +struct nouveau_fuse {
> +	struct nouveau_subdev base;
> +};
> +
> +static inline struct nouveau_fuse *
> +nouveau_fuse(void *obj)
> +{
> +	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_FUSE];
> +}
> +
> +#define nouveau_fuse_create(p, e, o, d)                                   
\
> +	nouveau_fuse_create_((p), (e), (o), sizeof(**d), (void **)d)
> +
> +int  nouveau_fuse_create_(struct nouveau_object *, struct nouveau_object
*,
> +			  struct nouveau_oclass *, int, void **);
> +void _nouveau_fuse_dtor(struct nouveau_object *);
> +int  _nouveau_fuse_init(struct nouveau_object *);
> +#define _nouveau_fuse_fini _nouveau_subdev_fini
> +
> +extern struct nouveau_oclass g80_fuse_oclass;
> +extern struct nouveau_oclass gf100_fuse_oclass;
> +extern struct nouveau_oclass gm107_fuse_oclass;
> +
> +#endif
> diff --git a/nvkm/subdev/Makefile.am b/nvkm/subdev/Makefile.am
> index c8eb147..5a48ddb 100644
> --- a/nvkm/subdev/Makefile.am
> +++ b/nvkm/subdev/Makefile.am
> @@ -1,4 +1,4 @@
> -SUBDIRS = bar bus bios clock devinit fb gpio i2c ibus instmem \
> +SUBDIRS = bar bus bios clock devinit fb fuse gpio i2c ibus instmem \
>   	  ltc mc mxm pwr therm timer vm volt
>   
>   noinst_LTLIBRARIES = libsubdev.la
> @@ -10,6 +10,7 @@ libsubdev_la_LIBADD   = bar/libbar.la \
>   			clock/libclock.la \
>   			devinit/libdevinit.la \
>   			fb/libfb.la \
> +			fuse/libfuse.la \
>   			gpio/libgpio.la \
>   			i2c/libi2c.la \
>   			ibus/libibus.la \
> diff --git a/nvkm/subdev/fuse/Makefile.am b/nvkm/subdev/fuse/Makefile.am
> new file mode 100644
> index 0000000..5596d2c
> --- /dev/null
> +++ b/nvkm/subdev/fuse/Makefile.am
> @@ -0,0 +1,8 @@
> +noinst_LTLIBRARIES = libfuse.la
> +
> +libfuse_la_SOURCES = base.c \
> +		    g80.c \
> +		    gf100.c \
> +		    gm107.c
> +
> +include $(srcdir)/../Makefile.subdev
> diff --git a/nvkm/subdev/fuse/base.c b/nvkm/subdev/fuse/base.c
> new file mode 100644
> index 0000000..d249f2b
> --- /dev/null
> +++ b/nvkm/subdev/fuse/base.c
> @@ -0,0 +1,62 @@
> +/*
> + * Copyright 2014 Martin Peres
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
"Software"),
> + * to deal in the Software without restriction, including without
limitation
> + * the rights to use, copy, modify, merge, publish, distribute,
sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included
in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES
OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: Martin Peres
> + */
> +
> +#include <subdev/fuse.h>
> +
> +int
> +_nouveau_fuse_init(struct nouveau_object *object)
> +{
> +	struct nouveau_fuse *fuse = (void *)object;
> +	int ret;
> +
> +	ret = nouveau_subdev_init(&fuse->base);
> +	if (ret)
> +		return ret;
> +
> +	return 0;
> +}
> +
> +void
> +_nouveau_fuse_dtor(struct nouveau_object *object)
> +{
> +	struct nouveau_fuse *fuse = (void *)object;
> +	nouveau_subdev_destroy(&fuse->base);
> +}
> +
> +int
> +nouveau_fuse_create_(struct nouveau_object *parent,
> +		     struct nouveau_object *engine,
> +		     struct nouveau_oclass *oclass, int length, void **pobject)
> +{
> +	struct nouveau_fuse *fuse;
> +	int ret;
> +
> +	ret = nouveau_subdev_create_(parent, engine, oclass, 0, "FUSE",
> +				     "fuse", length, pobject);
> +	fuse = *pobject;
> +	if (ret)
> +		return ret;
> +
> +	return ret;
> +}
> diff --git a/nvkm/subdev/fuse/g80.c b/nvkm/subdev/fuse/g80.c
> new file mode 100644
> index 0000000..31ab5c7
> --- /dev/null
> +++ b/nvkm/subdev/fuse/g80.c
> @@ -0,0 +1,81 @@
> +/*
> + * Copyright 2014 Martin Peres
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
"Software"),
> + * to deal in the Software without restriction, including without
limitation
> + * the rights to use, copy, modify, merge, publish, distribute,
sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included
in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES
OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: Martin Peres
> + */
> +
> +#include "priv.h"
> +
> +struct g80_fuse_priv {
> +	struct nouveau_fuse base;
> +
> +	spinlock_t fuse_enable_lock;
> +};
> +
> +static u32
> +nouveau_fuse_rd32(struct nouveau_object *object, u64 addr)
> +{
> +	struct g80_fuse_priv *priv = (void *)object;
> +	unsigned long flags;
> +	u32 fuse_enable, val;
> +
> +	spin_lock_irqsave(&priv->fuse_enable_lock, flags);
> +
> +	/* racy if another part of nouveau start writing to this reg */
> +	fuse_enable = nv_mask(priv, 0x1084, 0x800, 0x800);
> +	val = nv_rd32(priv, 0x21000 + addr);
> +	nv_wr32(priv, 0x1084, fuse_enable);
> +
> +	spin_unlock_irqrestore(&priv->fuse_enable_lock, flags);
> +
> +	return val;
> +}
> +
> +
> +static int
> +g80_fuse_ctor(struct nouveau_object *parent, struct nouveau_object
*engine,
> +	       struct nouveau_oclass *oclass, void *data, u32 size,
> +	       struct nouveau_object **pobject)
> +{
> +	struct g80_fuse_priv *priv;
> +	int ret;
> +
> +	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
> +	*pobject = nv_object(priv);
> +	if (ret)
> +		return ret;
> +
> +	spin_lock_init(&priv->fuse_enable_lock);
> +
> +	return 0;
> +}
> +
> +struct nouveau_oclass
> +g80_fuse_oclass = {
> +	.handle = NV_SUBDEV(FUSE, 0x50),
> +	.ofuncs = &(struct nouveau_ofuncs) {
> +		.ctor = g80_fuse_ctor,
> +		.dtor = _nouveau_fuse_dtor,
> +		.init = _nouveau_fuse_init,
> +		.fini = _nouveau_fuse_fini,
> +		.rd32 = nouveau_fuse_rd32,
> +	},
> +};
> diff --git a/nvkm/subdev/fuse/gf100.c b/nvkm/subdev/fuse/gf100.c
> new file mode 100644
> index 0000000..8407453
> --- /dev/null
> +++ b/nvkm/subdev/fuse/gf100.c
> @@ -0,0 +1,83 @@
> +/*
> + * Copyright 2014 Martin Peres
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
"Software"),
> + * to deal in the Software without restriction, including without
limitation
> + * the rights to use, copy, modify, merge, publish, distribute,
sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included
in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES
OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: Martin Peres
> + */
> +
> +#include "priv.h"
> +
> +struct gf100_fuse_priv {
> +	struct nouveau_fuse base;
> +
> +	spinlock_t fuse_enable_lock;
> +};
> +
> +static u32
> +nouveau_fuse_rd32(struct nouveau_object *object, u64 addr)
> +{
> +	struct gf100_fuse_priv *priv = (void *)object;
> +	unsigned long flags;
> +	u32 fuse_enable, unk, val;
> +
> +	spin_lock_irqsave(&priv->fuse_enable_lock, flags);
> +
> +	/* racy if another part of nouveau start writing to these regs */
> +	fuse_enable = nv_mask(priv, 0x22400, 0x800, 0x800);
> +	unk = nv_mask(priv, 0x21000, 0x1, 0x1);
> +	val = nv_rd32(priv, 0x21100 + addr);
> +	nv_wr32(priv, 0x21000, unk);
> +	nv_wr32(priv, 0x22400, fuse_enable);
> +
> +	spin_unlock_irqrestore(&priv->fuse_enable_lock, flags);
> +
> +	return val;
> +}
> +
> +
> +static int
> +gf100_fuse_ctor(struct nouveau_object *parent, struct nouveau_object
*engine,
> +	       struct nouveau_oclass *oclass, void *data, u32 size,
> +	       struct nouveau_object **pobject)
> +{
> +	struct gf100_fuse_priv *priv;
> +	int ret;
> +
> +	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
> +	*pobject = nv_object(priv);
> +	if (ret)
> +		return ret;
> +
> +	spin_lock_init(&priv->fuse_enable_lock);
> +
> +	return 0;
> +}
> +
> +struct nouveau_oclass
> +gf100_fuse_oclass = {
> +	.handle = NV_SUBDEV(FUSE, 0xC0),
> +	.ofuncs = &(struct nouveau_ofuncs) {
> +		.ctor = gf100_fuse_ctor,
> +		.dtor = _nouveau_fuse_dtor,
> +		.init = _nouveau_fuse_init,
> +		.fini = _nouveau_fuse_fini,
> +		.rd32 = nouveau_fuse_rd32,
> +	},
> +};
> diff --git a/nvkm/subdev/fuse/gm107.c b/nvkm/subdev/fuse/gm107.c
> new file mode 100644
> index 0000000..4ade700
> --- /dev/null
> +++ b/nvkm/subdev/fuse/gm107.c
> @@ -0,0 +1,66 @@
> +/*
> + * Copyright 2014 Martin Peres
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
"Software"),
> + * to deal in the Software without restriction, including without
limitation
> + * the rights to use, copy, modify, merge, publish, distribute,
sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included
in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES
OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: Martin Peres
> + */
> +
> +#include "priv.h"
> +
> +struct gm107_fuse_priv {
> +	struct nouveau_fuse base;
> +};
> +
> +static u32
> +nouveau_fuse_rd32(struct nouveau_object *object, u64 addr)
> +{
> +	struct gf100_fuse_priv *priv = (void *)object;
> +
> +	return nv_rd32(priv, 0x21100 + addr);
> +}
> +
> +
> +static int
> +gm107_fuse_ctor(struct nouveau_object *parent, struct nouveau_object
*engine,
> +	       struct nouveau_oclass *oclass, void *data, u32 size,
> +	       struct nouveau_object **pobject)
> +{
> +	struct gm107_fuse_priv *priv;
> +	int ret;
> +
> +	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
> +	*pobject = nv_object(priv);
> +	if (ret)
> +		return ret;
> +
> +	return 0;
> +}
> +
> +struct nouveau_oclass
> +gm107_fuse_oclass = {
> +	.handle = NV_SUBDEV(FUSE, 0x117),
> +	.ofuncs = &(struct nouveau_ofuncs) {
> +		.ctor = gm107_fuse_ctor,
> +		.dtor = _nouveau_fuse_dtor,
> +		.init = _nouveau_fuse_init,
> +		.fini = _nouveau_fuse_fini,
> +		.rd32 = nouveau_fuse_rd32,
> +	},
> +};
> diff --git a/nvkm/subdev/fuse/priv.h b/nvkm/subdev/fuse/priv.h
> new file mode 100644
> index 0000000..d208541
> --- /dev/null
> +++ b/nvkm/subdev/fuse/priv.h
> @@ -0,0 +1,9 @@
> +#ifndef __NVKM_FUSE_PRIV_H__
> +#define __NVKM_FUSE_PRIV_H__
> +
> +#include <subdev/fuse.h>
> +
> +int _nouveau_fuse_init(struct nouveau_object *object);
> +void _nouveau_fuse_dtor(struct nouveau_object *object);
> +
> +#endif

On 25/08/2014 00:27, Christian Costa wrote:
> Hi Martin,
>
> I'm not very familiar with the function naming scheme but shouldn't
> nouveau_fuse_rd32 use the same prefix as xxxx_fuse_ctor instead of 
> nouveau?
>
> Christian
Hey Christian,

You're right, I should have. It's not really a problem since the 
function is static. I'll send a v2 if Ben wants me to fix it :)

Martin

On 24/08/14 22:15, Martin Peres wrote:
> We will use this subdev to disable temperature reading on cards that did
not
> get a sensor calibration in the factory.
> 
> Signed-off-by: Martin Peres <martin.peres at free.fr>
> ---
>  configure.ac                   |  1 +
>  drm/Kbuild                     |  4 ++
>  drm/core/include/subdev/fuse.h |  1 +
>  drm/core/subdev/fuse/base.c    |  1 +
>  drm/core/subdev/fuse/g80.c     |  1 +
>  drm/core/subdev/fuse/gf100.c   |  1 +
>  drm/core/subdev/fuse/gm107.c   |  1 +
>  drm/core/subdev/fuse/priv.h    |  1 +
>  nvkm/engine/device/gm100.c     |  2 +
>  nvkm/engine/device/nv50.c      | 15 ++++++++
>  nvkm/engine/device/nvc0.c      | 10 +++++
>  nvkm/engine/device/nve0.c      |  8 ++++
>  nvkm/include/core/device.h     |  1 +
>  nvkm/include/subdev/fuse.h     | 30 +++++++++++++++
>  nvkm/subdev/Makefile.am        |  3 +-
>  nvkm/subdev/fuse/Makefile.am   |  8 ++++
>  nvkm/subdev/fuse/base.c        | 62 +++++++++++++++++++++++++++++++
>  nvkm/subdev/fuse/g80.c         | 81
+++++++++++++++++++++++++++++++++++++++++
>  nvkm/subdev/fuse/gf100.c       | 83
++++++++++++++++++++++++++++++++++++++++++
>  nvkm/subdev/fuse/gm107.c       | 66 +++++++++++++++++++++++++++++++++
>  nvkm/subdev/fuse/priv.h        |  9 +++++
>  21 files changed, 388 insertions(+), 1 deletion(-)
>  create mode 120000 drm/core/include/subdev/fuse.h
>  create mode 120000 drm/core/subdev/fuse/base.c
>  create mode 120000 drm/core/subdev/fuse/g80.c
>  create mode 120000 drm/core/subdev/fuse/gf100.c
>  create mode 120000 drm/core/subdev/fuse/gm107.c
>  create mode 120000 drm/core/subdev/fuse/priv.h
>  create mode 100644 nvkm/include/subdev/fuse.h
>  create mode 100644 nvkm/subdev/fuse/Makefile.am
>  create mode 100644 nvkm/subdev/fuse/base.c
>  create mode 100644 nvkm/subdev/fuse/g80.c
>  create mode 100644 nvkm/subdev/fuse/gf100.c
>  create mode 100644 nvkm/subdev/fuse/gm107.c
>  create mode 100644 nvkm/subdev/fuse/priv.h
> 
[snip]
> diff --git a/nvkm/subdev/fuse/base.c b/nvkm/subdev/fuse/base.c
> new file mode 100644
> index 0000000..d249f2b
> --- /dev/null
> +++ b/nvkm/subdev/fuse/base.c
> @@ -0,0 +1,62 @@
> +/*
> + * Copyright 2014 Martin Peres
> + *
> + * Permission is hereby granted, free of charge, to any person obtaining a
> + * copy of this software and associated documentation files (the
"Software"),
> + * to deal in the Software without restriction, including without
limitation
> + * the rights to use, copy, modify, merge, publish, distribute,
sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice shall be included
in
> + * all copies or substantial portions of the Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
SHALL
> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES
OR
> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + * OTHER DEALINGS IN THE SOFTWARE.
> + *
> + * Authors: Martin Peres
> + */
> +
> +#include <subdev/fuse.h>
> +
> +int
> +_nouveau_fuse_init(struct nouveau_object *object)
> +{
> +	struct nouveau_fuse *fuse = (void *)object;
> +	int ret;
> +
> +	ret = nouveau_subdev_init(&fuse->base);
> +	if (ret)
> +		return ret;
> +
If you want you can drop the check the extra variable.
> +	return 0;
> +}
> +
> +void
> +_nouveau_fuse_dtor(struct nouveau_object *object)
> +{
> +	struct nouveau_fuse *fuse = (void *)object;
> +	nouveau_subdev_destroy(&fuse->base);
> +}
> +
> +int
> +nouveau_fuse_create_(struct nouveau_object *parent,
> +		     struct nouveau_object *engine,
> +		     struct nouveau_oclass *oclass, int length, void **pobject)
> +{
> +	struct nouveau_fuse *fuse;
> +	int ret;
> +
> +	ret = nouveau_subdev_create_(parent, engine, oclass, 0, "FUSE",
> +				     "fuse", length, pobject);
                                                     ^^^^^^^
I think you want to use &fuse                        here ?
> +	fuse = *pobject;
Swap the assignment order and move it past the conditional ?
> +	if (ret)
> +		return ret;
> +
+ *pobject = fuse;

And perhaps return 0, to make it obvious and consistent with the second case
below.
> +	return ret;
> +}
[snip]
> diff --git a/nvkm/subdev/fuse/gm107.c b/nvkm/subdev/fuse/gm107.c
> new file mode 100644
> index 0000000..4ade700
> --- /dev/null
> +++ b/nvkm/subdev/fuse/gm107.c
> @@ -0,0 +1,66 @@
[snip]
> +static int
> +gm107_fuse_ctor(struct nouveau_object *parent, struct nouveau_object
*engine,
> +	       struct nouveau_oclass *oclass, void *data, u32 size,
> +	       struct nouveau_object **pobject)
> +{
> +	struct gm107_fuse_priv *priv;
> +	int ret;
> +
> +	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
> +	*pobject = nv_object(priv);
Believe the above assignment should go after the check ?

Nice job :)
-Emil
> +	if (ret)
> +		return ret;
> +
> +	return 0;
> +}
> +

On Mon, Aug 25, 2014 at 9:35 AM, Emil Velikov <emil.l.velikov at
gmail.com> wrote:
> On 24/08/14 22:15, Martin Peres wrote:
>> We will use this subdev to disable temperature reading on cards that
did not
>> get a sensor calibration in the factory.
>>
>> Signed-off-by: Martin Peres <martin.peres at free.fr>
>> ---
>>  configure.ac                   |  1 +
>>  drm/Kbuild                     |  4 ++
>>  drm/core/include/subdev/fuse.h |  1 +
>>  drm/core/subdev/fuse/base.c    |  1 +
>>  drm/core/subdev/fuse/g80.c     |  1 +
>>  drm/core/subdev/fuse/gf100.c   |  1 +
>>  drm/core/subdev/fuse/gm107.c   |  1 +
>>  drm/core/subdev/fuse/priv.h    |  1 +
>>  nvkm/engine/device/gm100.c     |  2 +
>>  nvkm/engine/device/nv50.c      | 15 ++++++++
>>  nvkm/engine/device/nvc0.c      | 10 +++++
>>  nvkm/engine/device/nve0.c      |  8 ++++
>>  nvkm/include/core/device.h     |  1 +
>>  nvkm/include/subdev/fuse.h     | 30 +++++++++++++++
>>  nvkm/subdev/Makefile.am        |  3 +-
>>  nvkm/subdev/fuse/Makefile.am   |  8 ++++
>>  nvkm/subdev/fuse/base.c        | 62 +++++++++++++++++++++++++++++++
>>  nvkm/subdev/fuse/g80.c         | 81
+++++++++++++++++++++++++++++++++++++++++
>>  nvkm/subdev/fuse/gf100.c       | 83
++++++++++++++++++++++++++++++++++++++++++
>>  nvkm/subdev/fuse/gm107.c       | 66 +++++++++++++++++++++++++++++++++
>>  nvkm/subdev/fuse/priv.h        |  9 +++++
>>  21 files changed, 388 insertions(+), 1 deletion(-)
>>  create mode 120000 drm/core/include/subdev/fuse.h
>>  create mode 120000 drm/core/subdev/fuse/base.c
>>  create mode 120000 drm/core/subdev/fuse/g80.c
>>  create mode 120000 drm/core/subdev/fuse/gf100.c
>>  create mode 120000 drm/core/subdev/fuse/gm107.c
>>  create mode 120000 drm/core/subdev/fuse/priv.h
>>  create mode 100644 nvkm/include/subdev/fuse.h
>>  create mode 100644 nvkm/subdev/fuse/Makefile.am
>>  create mode 100644 nvkm/subdev/fuse/base.c
>>  create mode 100644 nvkm/subdev/fuse/g80.c
>>  create mode 100644 nvkm/subdev/fuse/gf100.c
>>  create mode 100644 nvkm/subdev/fuse/gm107.c
>>  create mode 100644 nvkm/subdev/fuse/priv.h
>>
> [snip]
>> diff --git a/nvkm/subdev/fuse/base.c b/nvkm/subdev/fuse/base.c
>> new file mode 100644
>> index 0000000..d249f2b
>> --- /dev/null
>> +++ b/nvkm/subdev/fuse/base.c
>> @@ -0,0 +1,62 @@
>> +/*
>> + * Copyright 2014 Martin Peres
>> + *
>> + * Permission is hereby granted, free of charge, to any person
obtaining a
>> + * copy of this software and associated documentation files (the
"Software"),
>> + * to deal in the Software without restriction, including without
limitation
>> + * the rights to use, copy, modify, merge, publish, distribute,
sublicense,
>> + * and/or sell copies of the Software, and to permit persons to whom
the
>> + * Software is furnished to do so, subject to the following
conditions:
>> + *
>> + * The above copyright notice and this permission notice shall be
included in
>> + * all copies or substantial portions of the Software.
>> + *
>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS OR
>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY,
>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT
SHALL
>> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM,
DAMAGES OR
>> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE,
>> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
OR
>> + * OTHER DEALINGS IN THE SOFTWARE.
>> + *
>> + * Authors: Martin Peres
>> + */
>> +
>> +#include <subdev/fuse.h>
>> +
>> +int
>> +_nouveau_fuse_init(struct nouveau_object *object)
>> +{
>> +     struct nouveau_fuse *fuse = (void *)object;
>> +     int ret;
>> +
>> +     ret = nouveau_subdev_init(&fuse->base);
>> +     if (ret)
>> +             return ret;
>> +
> If you want you can drop the check the extra variable.
>
>> +     return 0;
>> +}
>> +
>> +void
>> +_nouveau_fuse_dtor(struct nouveau_object *object)
>> +{
>> +     struct nouveau_fuse *fuse = (void *)object;
>> +     nouveau_subdev_destroy(&fuse->base);
>> +}
>> +
>> +int
>> +nouveau_fuse_create_(struct nouveau_object *parent,
>> +                  struct nouveau_object *engine,
>> +                  struct nouveau_oclass *oclass, int length, void
**pobject)
>> +{
>> +     struct nouveau_fuse *fuse;
>> +     int ret;
>> +
>> +     ret = nouveau_subdev_create_(parent, engine, oclass, 0,
"FUSE",
>> +                                  "fuse", length, pobject);
>                                                      ^^^^^^^
> I think you want to use &fuse                        here ?
>
>> +     fuse = *pobject;
> Swap the assignment order and move it past the conditional ?
>
>> +     if (ret)
>> +             return ret;
>> +
>
> + *pobject = fuse;
>
> And perhaps return 0, to make it obvious and consistent with the second
case
> below.
>
>> +     return ret;
>> +}
> [snip]
>> diff --git a/nvkm/subdev/fuse/gm107.c b/nvkm/subdev/fuse/gm107.c
>> new file mode 100644
>> index 0000000..4ade700
>> --- /dev/null
>> +++ b/nvkm/subdev/fuse/gm107.c
>> @@ -0,0 +1,66 @@
> [snip]
>> +static int
>> +gm107_fuse_ctor(struct nouveau_object *parent, struct nouveau_object
*engine,
>> +            struct nouveau_oclass *oclass, void *data, u32 size,
>> +            struct nouveau_object **pobject)
>> +{
>> +     struct gm107_fuse_priv *priv;
>> +     int ret;
>> +
>> +     ret = nouveau_fuse_create(parent, engine, oclass, &priv);
>> +     *pobject = nv_object(priv);
> Believe the above assignment should go after the check ?
Actually, no.  It's correct how it is.  If something further up fails,
the pointer may still be valid and the destructors will get called
automagically by the core to cleanup.

I have some stuff upcoming that removes the need for the massive
amounts of explicit glue needed between the pieces, that'll make it
far more obvious.

Ben.
>
> Nice job :)
> -Emil
>
>> +     if (ret)
>> +             return ret;
>> +
>> +     return 0;
>> +}
>> +
>
> _______________________________________________
> Nouveau mailing list
> Nouveau at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau

We will use this subdev to disable temperature reading on cards that did not
get a sensor calibration in the factory.

v2:
- rename "nouveau_fuse_rd32" to "gxXXX_fuse_rd32" as adviced
by Christian Costa
- fold the code a little as adviced by Emil Velikov

Signed-off-by: Martin Peres <martin.peres at free.fr>
---
 configure.ac                   |  1 +
 drm/Kbuild                     |  4 ++
 drm/core/include/subdev/fuse.h |  1 +
 drm/core/subdev/fuse/base.c    |  1 +
 drm/core/subdev/fuse/g80.c     |  1 +
 drm/core/subdev/fuse/gf100.c   |  1 +
 drm/core/subdev/fuse/gm107.c   |  1 +
 drm/core/subdev/fuse/priv.h    |  1 +
 nvkm/engine/device/gm100.c     |  2 +
 nvkm/engine/device/nv50.c      | 15 ++++++++
 nvkm/engine/device/nvc0.c      | 10 +++++
 nvkm/engine/device/nve0.c      |  8 ++++
 nvkm/include/core/device.h     |  1 +
 nvkm/include/subdev/fuse.h     | 30 +++++++++++++++
 nvkm/subdev/Makefile.am        |  3 +-
 nvkm/subdev/fuse/Makefile.am   |  8 ++++
 nvkm/subdev/fuse/base.c        | 54 +++++++++++++++++++++++++++
 nvkm/subdev/fuse/g80.c         | 81 +++++++++++++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/gf100.c       | 83 ++++++++++++++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/gm107.c       | 66 +++++++++++++++++++++++++++++++++
 nvkm/subdev/fuse/priv.h        |  9 +++++
 21 files changed, 380 insertions(+), 1 deletion(-)
 create mode 120000 drm/core/include/subdev/fuse.h
 create mode 120000 drm/core/subdev/fuse/base.c
 create mode 120000 drm/core/subdev/fuse/g80.c
 create mode 120000 drm/core/subdev/fuse/gf100.c
 create mode 120000 drm/core/subdev/fuse/gm107.c
 create mode 120000 drm/core/subdev/fuse/priv.h
 create mode 100644 nvkm/include/subdev/fuse.h
 create mode 100644 nvkm/subdev/fuse/Makefile.am
 create mode 100644 nvkm/subdev/fuse/base.c
 create mode 100644 nvkm/subdev/fuse/g80.c
 create mode 100644 nvkm/subdev/fuse/gf100.c
 create mode 100644 nvkm/subdev/fuse/gm107.c
 create mode 100644 nvkm/subdev/fuse/priv.h

diff --git a/configure.ac b/configure.ac
index de27156..b4404a5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -74,6 +74,7 @@ AC_OUTPUT( Makefile \
 	   nvkm/subdev/clock/Makefile \
 	   nvkm/subdev/devinit/Makefile \
 	   nvkm/subdev/fb/Makefile \
+	   nvkm/subdev/fuse/Makefile \
 	   nvkm/subdev/gpio/Makefile \
 	   nvkm/subdev/i2c/Makefile \
 	   nvkm/subdev/ibus/Makefile \
diff --git a/drm/Kbuild b/drm/Kbuild
index c663181..37ab09b 100644
--- a/drm/Kbuild
+++ b/drm/Kbuild
@@ -127,6 +127,10 @@ nouveau-y += core/subdev/fb/ramgk20a.o
 nouveau-y += core/subdev/fb/ramgm107.o
 nouveau-y += core/subdev/fb/sddr3.o
 nouveau-y += core/subdev/fb/gddr5.o
+nouveau-y += core/subdev/fuse/base.o
+nouveau-y += core/subdev/fuse/g80.o
+nouveau-y += core/subdev/fuse/gf100.o
+nouveau-y += core/subdev/fuse/gm107.o
 nouveau-y += core/subdev/gpio/base.o
 nouveau-y += core/subdev/gpio/nv10.o
 nouveau-y += core/subdev/gpio/nv50.o
diff --git a/drm/core/include/subdev/fuse.h b/drm/core/include/subdev/fuse.h
new file mode 120000
index 0000000..421fdd7
--- /dev/null
+++ b/drm/core/include/subdev/fuse.h
@@ -0,0 +1 @@
+../../../../nvkm/include/subdev/fuse.h
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/base.c b/drm/core/subdev/fuse/base.c
new file mode 120000
index 0000000..b218313
--- /dev/null
+++ b/drm/core/subdev/fuse/base.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/base.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/g80.c b/drm/core/subdev/fuse/g80.c
new file mode 120000
index 0000000..c805b0d
--- /dev/null
+++ b/drm/core/subdev/fuse/g80.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/g80.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/gf100.c b/drm/core/subdev/fuse/gf100.c
new file mode 120000
index 0000000..ad9411b
--- /dev/null
+++ b/drm/core/subdev/fuse/gf100.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/gf100.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/gm107.c b/drm/core/subdev/fuse/gm107.c
new file mode 120000
index 0000000..947b11c
--- /dev/null
+++ b/drm/core/subdev/fuse/gm107.c
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/gm107.c
\ No newline at end of file
diff --git a/drm/core/subdev/fuse/priv.h b/drm/core/subdev/fuse/priv.h
new file mode 120000
index 0000000..b6dedaa
--- /dev/null
+++ b/drm/core/subdev/fuse/priv.h
@@ -0,0 +1 @@
+../../../../nvkm/subdev/fuse/priv.h
\ No newline at end of file
diff --git a/nvkm/engine/device/gm100.c b/nvkm/engine/device/gm100.c
index 9e9f567..6295668 100644
--- a/nvkm/engine/device/gm100.c
+++ b/nvkm/engine/device/gm100.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ gm100_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gm107_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &gm107_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/engine/device/nv50.c b/nvkm/engine/device/nv50.c
index 932f84f..ca265fe 100644
--- a/nvkm/engine/device/nv50.c
+++ b/nvkm/engine/device/nv50.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv50_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv50_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -87,6 +89,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -115,6 +118,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv50_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -143,6 +147,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -171,6 +176,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -199,6 +205,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -227,6 +234,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -255,6 +263,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv50_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nv84_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -283,6 +292,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nvaa_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -311,6 +321,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] =  nvaa_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nv84_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -339,6 +350,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -369,6 +381,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -398,6 +411,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -427,6 +441,7 @@ nv50_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] =  &g80_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/engine/device/nvc0.c b/nvkm/engine/device/nvc0.c
index b4a2917..89b9fd4 100644
--- a/nvkm/engine/device/nvc0.c
+++ b/nvkm/engine/device/nvc0.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -94,6 +96,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -126,6 +129,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -157,6 +161,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -189,6 +194,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -221,6 +227,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -252,6 +259,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nv92_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nv94_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -284,6 +292,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -315,6 +324,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nvd0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  gf117_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/engine/device/nve0.c b/nvkm/engine/device/nve0.c
index cdf9147..b1b2e48 100644
--- a/nvkm/engine/device/nve0.c
+++ b/nvkm/engine/device/nve0.c
@@ -26,6 +26,7 @@
 #include <subdev/bus.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/fuse.h>
 #include <subdev/clock.h>
 #include <subdev/therm.h>
 #include <subdev/mxm.h>
@@ -62,6 +63,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -95,6 +97,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -128,6 +131,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -161,6 +165,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &gk20a_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_MC     ] =  gk20a_mc_oclass;
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &gk20a_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  gk20a_fb_oclass;
 		device->oclass[NVDEV_SUBDEV_LTC    ] =  gk104_ltc_oclass;
@@ -180,6 +185,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -213,6 +219,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nvd0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
@@ -246,6 +253,7 @@ nve0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
 		device->oclass[NVDEV_SUBDEV_GPIO   ] =  nve0_gpio_oclass;
 		device->oclass[NVDEV_SUBDEV_I2C    ] =  nve0_i2c_oclass;
+		device->oclass[NVDEV_SUBDEV_FUSE   ] = &gf100_fuse_oclass;
 		device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nve0_clock_oclass;
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nvd0_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
diff --git a/nvkm/include/core/device.h b/nvkm/include/core/device.h
index 8743766..1d9d893 100644
--- a/nvkm/include/core/device.h
+++ b/nvkm/include/core/device.h
@@ -24,6 +24,7 @@ enum nv_subdev_type {
 	 * been created, and are allowed to assume any subdevs in the
 	 * list above them exist and have been initialised.
 	 */
+	NVDEV_SUBDEV_FUSE,
 	NVDEV_SUBDEV_MXM,
 	NVDEV_SUBDEV_MC,
 	NVDEV_SUBDEV_BUS,
diff --git a/nvkm/include/subdev/fuse.h b/nvkm/include/subdev/fuse.h
new file mode 100644
index 0000000..2b1ddb2
--- /dev/null
+++ b/nvkm/include/subdev/fuse.h
@@ -0,0 +1,30 @@
+#ifndef __NOUVEAU_FUSE_H__
+#define __NOUVEAU_FUSE_H__
+
+#include <core/subdev.h>
+#include <core/device.h>
+
+struct nouveau_fuse {
+	struct nouveau_subdev base;
+};
+
+static inline struct nouveau_fuse *
+nouveau_fuse(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_FUSE];
+}
+
+#define nouveau_fuse_create(p, e, o, d)                                       
\
+	nouveau_fuse_create_((p), (e), (o), sizeof(**d), (void **)d)
+
+int  nouveau_fuse_create_(struct nouveau_object *, struct nouveau_object *,
+			  struct nouveau_oclass *, int, void **);
+void _nouveau_fuse_dtor(struct nouveau_object *);
+int  _nouveau_fuse_init(struct nouveau_object *);
+#define _nouveau_fuse_fini _nouveau_subdev_fini
+
+extern struct nouveau_oclass g80_fuse_oclass;
+extern struct nouveau_oclass gf100_fuse_oclass;
+extern struct nouveau_oclass gm107_fuse_oclass;
+
+#endif
diff --git a/nvkm/subdev/Makefile.am b/nvkm/subdev/Makefile.am
index c8eb147..5a48ddb 100644
--- a/nvkm/subdev/Makefile.am
+++ b/nvkm/subdev/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = bar bus bios clock devinit fb gpio i2c ibus instmem \
+SUBDIRS = bar bus bios clock devinit fb fuse gpio i2c ibus instmem \
 	  ltc mc mxm pwr therm timer vm volt
 
 noinst_LTLIBRARIES = libsubdev.la
@@ -10,6 +10,7 @@ libsubdev_la_LIBADD   = bar/libbar.la \
 			clock/libclock.la \
 			devinit/libdevinit.la \
 			fb/libfb.la \
+			fuse/libfuse.la \
 			gpio/libgpio.la \
 			i2c/libi2c.la \
 			ibus/libibus.la \
diff --git a/nvkm/subdev/fuse/Makefile.am b/nvkm/subdev/fuse/Makefile.am
new file mode 100644
index 0000000..5596d2c
--- /dev/null
+++ b/nvkm/subdev/fuse/Makefile.am
@@ -0,0 +1,8 @@
+noinst_LTLIBRARIES = libfuse.la
+
+libfuse_la_SOURCES = base.c \
+		    g80.c \
+		    gf100.c \
+		    gm107.c
+
+include $(srcdir)/../Makefile.subdev
diff --git a/nvkm/subdev/fuse/base.c b/nvkm/subdev/fuse/base.c
new file mode 100644
index 0000000..9e8e921
--- /dev/null
+++ b/nvkm/subdev/fuse/base.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include <subdev/fuse.h>
+
+int
+_nouveau_fuse_init(struct nouveau_object *object)
+{
+	struct nouveau_fuse *fuse = (void *)object;
+	return nouveau_subdev_init(&fuse->base);
+}
+
+void
+_nouveau_fuse_dtor(struct nouveau_object *object)
+{
+	struct nouveau_fuse *fuse = (void *)object;
+	nouveau_subdev_destroy(&fuse->base);
+}
+
+int
+nouveau_fuse_create_(struct nouveau_object *parent,
+		     struct nouveau_object *engine,
+		     struct nouveau_oclass *oclass, int length, void **pobject)
+{
+	struct nouveau_fuse *fuse;
+	int ret;
+
+	ret = nouveau_subdev_create_(parent, engine, oclass, 0, "FUSE",
+				     "fuse", length, pobject);
+	fuse = *pobject;
+
+	return ret;
+}
diff --git a/nvkm/subdev/fuse/g80.c b/nvkm/subdev/fuse/g80.c
new file mode 100644
index 0000000..a374ade
--- /dev/null
+++ b/nvkm/subdev/fuse/g80.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include "priv.h"
+
+struct g80_fuse_priv {
+	struct nouveau_fuse base;
+
+	spinlock_t fuse_enable_lock;
+};
+
+static u32
+g80_fuse_rd32(struct nouveau_object *object, u64 addr)
+{
+	struct g80_fuse_priv *priv = (void *)object;
+	unsigned long flags;
+	u32 fuse_enable, val;
+
+	spin_lock_irqsave(&priv->fuse_enable_lock, flags);
+
+	/* racy if another part of nouveau start writing to this reg */
+	fuse_enable = nv_mask(priv, 0x1084, 0x800, 0x800);
+	val = nv_rd32(priv, 0x21000 + addr);
+	nv_wr32(priv, 0x1084, fuse_enable);
+
+	spin_unlock_irqrestore(&priv->fuse_enable_lock, flags);
+
+	return val;
+}
+
+
+static int
+g80_fuse_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct g80_fuse_priv *priv;
+	int ret;
+
+	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	spin_lock_init(&priv->fuse_enable_lock);
+
+	return 0;
+}
+
+struct nouveau_oclass
+g80_fuse_oclass = {
+	.handle = NV_SUBDEV(FUSE, 0x50),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = g80_fuse_ctor,
+		.dtor = _nouveau_fuse_dtor,
+		.init = _nouveau_fuse_init,
+		.fini = _nouveau_fuse_fini,
+		.rd32 = g80_fuse_rd32,
+	},
+};
diff --git a/nvkm/subdev/fuse/gf100.c b/nvkm/subdev/fuse/gf100.c
new file mode 100644
index 0000000..5ed03f5
--- /dev/null
+++ b/nvkm/subdev/fuse/gf100.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include "priv.h"
+
+struct gf100_fuse_priv {
+	struct nouveau_fuse base;
+
+	spinlock_t fuse_enable_lock;
+};
+
+static u32
+gf100_fuse_rd32(struct nouveau_object *object, u64 addr)
+{
+	struct gf100_fuse_priv *priv = (void *)object;
+	unsigned long flags;
+	u32 fuse_enable, unk, val;
+
+	spin_lock_irqsave(&priv->fuse_enable_lock, flags);
+
+	/* racy if another part of nouveau start writing to these regs */
+	fuse_enable = nv_mask(priv, 0x22400, 0x800, 0x800);
+	unk = nv_mask(priv, 0x21000, 0x1, 0x1);
+	val = nv_rd32(priv, 0x21100 + addr);
+	nv_wr32(priv, 0x21000, unk);
+	nv_wr32(priv, 0x22400, fuse_enable);
+
+	spin_unlock_irqrestore(&priv->fuse_enable_lock, flags);
+
+	return val;
+}
+
+
+static int
+gf100_fuse_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct gf100_fuse_priv *priv;
+	int ret;
+
+	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	spin_lock_init(&priv->fuse_enable_lock);
+
+	return 0;
+}
+
+struct nouveau_oclass
+gf100_fuse_oclass = {
+	.handle = NV_SUBDEV(FUSE, 0xC0),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gf100_fuse_ctor,
+		.dtor = _nouveau_fuse_dtor,
+		.init = _nouveau_fuse_init,
+		.fini = _nouveau_fuse_fini,
+		.rd32 = gf100_fuse_rd32,
+	},
+};
diff --git a/nvkm/subdev/fuse/gm107.c b/nvkm/subdev/fuse/gm107.c
new file mode 100644
index 0000000..4f1a636
--- /dev/null
+++ b/nvkm/subdev/fuse/gm107.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2014 Martin Peres
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
"Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Martin Peres
+ */
+
+#include "priv.h"
+
+struct gm107_fuse_priv {
+	struct nouveau_fuse base;
+};
+
+static u32
+gm107_fuse_rd32(struct nouveau_object *object, u64 addr)
+{
+	struct gf100_fuse_priv *priv = (void *)object;
+
+	return nv_rd32(priv, 0x21100 + addr);
+}
+
+
+static int
+gm107_fuse_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+	       struct nouveau_oclass *oclass, void *data, u32 size,
+	       struct nouveau_object **pobject)
+{
+	struct gm107_fuse_priv *priv;
+	int ret;
+
+	ret = nouveau_fuse_create(parent, engine, oclass, &priv);
+	*pobject = nv_object(priv);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+struct nouveau_oclass
+gm107_fuse_oclass = {
+	.handle = NV_SUBDEV(FUSE, 0x117),
+	.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = gm107_fuse_ctor,
+		.dtor = _nouveau_fuse_dtor,
+		.init = _nouveau_fuse_init,
+		.fini = _nouveau_fuse_fini,
+		.rd32 = gm107_fuse_rd32,
+	},
+};
diff --git a/nvkm/subdev/fuse/priv.h b/nvkm/subdev/fuse/priv.h
new file mode 100644
index 0000000..d208541
--- /dev/null
+++ b/nvkm/subdev/fuse/priv.h
@@ -0,0 +1,9 @@
+#ifndef __NVKM_FUSE_PRIV_H__
+#define __NVKM_FUSE_PRIV_H__
+
+#include <subdev/fuse.h>
+
+int _nouveau_fuse_init(struct nouveau_object *object);
+void _nouveau_fuse_dtor(struct nouveau_object *object);
+
+#endif
-- 
2.0.0

On Mon, Aug 25, 2014 at 7:15 AM, Martin Peres <martin.peres at free.fr>
wrote:
> Signed-off-by: Martin Peres <martin.peres at free.fr>
Hey Martin,

Merged all three patches.

Thanks :)
> ---
>  nvkm/subdev/therm/nv84.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/nvkm/subdev/therm/nv84.c b/nvkm/subdev/therm/nv84.c
> index 38b16d9..14e2e09 100644
> --- a/nvkm/subdev/therm/nv84.c
> +++ b/nvkm/subdev/therm/nv84.c
> @@ -33,7 +33,12 @@ struct nv84_therm_priv {
>  int
>  nv84_temp_get(struct nouveau_therm *therm)
>  {
> -       return nv_rd32(therm, 0x20400);
> +       struct nouveau_fuse *fuse = nouveau_fuse(therm);
> +
> +       if (nv_ro32(fuse, 0x1a8) == 1)
> +               return nv_rd32(therm, 0x20400);
> +       else
> +               return -ENODEV;
>  }
>
>  void
> --
> 2.0.0
>
> _______________________________________________
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> Nouveau at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau