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On 3 September 2015 at 16:32, Alexandre Courbot <acourbot at nvidia.com> wrote: > Some devices may not have a PMU. Avoid a NULL pointer dereference in > such cases. > > Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> > --- > drm/nouveau/nvkm/engine/gr/gf100.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drm/nouveau/nvkm/engine/gr/gf100.c b/drm/nouveau/nvkm/engine/gr/gf100.c > index f1358a564e3e..f252fa2d7cf9 100644 > --- a/drm/nouveau/nvkm/engine/gr/gf100.c > +++ b/drm/nouveau/nvkm/engine/gr/gf100.c >...

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c:1044: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Cc: Ben Skeggs <bskeggs at redhat.com> Cc: Karol Herbst <kherbst at redhat.com> Cc: Lyude Paul <lyude at redhat.com> Cc: David Airlie <airl...

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c:1044: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Signed-off-by: Lee Jones <lee at kernel.org> --- Cc: Ben Skeggs <bskeggs at redhat.com> Cc: Karol Herbst <kherbst at redhat.com> Cc: Lyude Pau...

There is a statement with two semicolons. Remove the second one, it is redundant. Signed-off-by: Colin Ian King <colin.i.king at gmail.com> --- drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c index 986e8d547c94..060c74a80eb1 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/engin...

...ourbot <acourbot at nvidia.com> wrote: >>> Some devices may not have a PMU. Avoid a NULL pointer dereference in >>> such cases. >>> >>> Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> >>> --- >>> drm/nouveau/nvkm/engine/gr/gf100.c | 3 ++- >>> 1 file changed, 2 insertions(+), 1 deletion(-) >>> >>> diff --git a/drm/nouveau/nvkm/engine/gr/gf100.c b/drm/nouveau/nvkm/engine/gr/gf100.c >>> index f1358a564e3e..f252fa2d7cf9 100644 >>> --- a/drm/nouveau/nvkm/engine/gr/gf100.c >>&g...

Here are a few small fixes for issues we found while implementing support for GM20B. The first two are specific to Tegra/GK20A, but the last 3 patches may have a broader (hopefully beneficial) effect. Note that the newly introduced gf100_gr_wait_idle() function on patch 5/5 is exported on purpose. GK20A and GM20B drivers will soon make use of it. Ben, since you seemed to like these changes, a pull request follows in case you feel like playing! :) The following changes since commit 258eea3b7493a4e4e8831efbbb5d0a3e2b1a44aa: drm:...

gcc with W=1 reports drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c:451:1: error: no previous prototype for ?gf100_fifo_nonstall_block? [-Werror=missing-prototypes] 451 | gf100_fifo_nonstall_block(struct nvkm_event *event, int type, int index) | ^~~~~~~~~~~~~~~~~~~~~~~~~ gf100_fifo_nonstall_block is only used in gf100.c, so it should be static Signed-...

...l GR firmware. But that info message was (inadvertently?) removed in commit 18cd5bc. This just adds it back. It's nice for users to be able to confirm whether external firmware was loaded or not. Signed-off-by: Dan Moulding <dmoulding at me.com> --- drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c index ae9ab5b..0ed56ff 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c @@ -1805,6 +18...

...e: > When emitting the ICMD bundle, wait on the bottom half (bit 3 of the > GR_STATUS register) instead of upper half (bit 2) to make sure methods > are effectively emitted. > > Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> > --- > drm/nouveau/nvkm/engine/gr/gf100.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drm/nouveau/nvkm/engine/gr/gf100.c > b/drm/nouveau/nvkm/engine/gr/gf100.c > index 5606c25e5d02..01efc2c96045 100644 > --- a/drm/nouveau/nvkm/engine/gr/gf100.c > +++ b/drm/nouveau/nvkm/engine/gr/gf100.c &...

Change kernel-doc "/**" comments to common "/*" comments to prevent kernel-doc warnings: gf100.c:1044: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Wait until GR goes idle. GR is considered idle if it is disabled by the gf100.c:1044: warning: missing initial short description on line: * Wait until GR goe...

Fixes secure boot on my gp107. No idea why. Otherwise the GPU enters complete lockdown after starting the gpccs and fecs with the LS images loaded. Signed-off-by: Karol Herbst <kherbst at redhat.com> --- drm/nouveau/nvkm/engine/gr/gf100.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drm/nouveau/nvkm/engine/gr/gf100.c b/drm/nouveau/nvkm/engine/gr/gf100.c index 2f8dc107..322d9fa6 100644 --- a/drm/nouveau/nvkm/engine/gr/gf100.c +++ b/drm/nouveau/nvkm/engine/gr/gf100.c @@ -1731,8 +1731,15 @@ gf100_gr_init_(struct nvkm_gr...

It is not advisable to perform devinit if it has already been done. VBIOS will very likely have invoked devinit if the GPU is the primary graphics device, but there is no accurate way to detect this fact yet. This patch adds such a method for gf100 and later chips, by means of the NV_PTOP_SCRATCH1_DEVINIT_COMPLETED bit. This bit is set to 1 by devinit, and reset to 0 when the GPU is powered. Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> --- drm/nouveau/nvkm/subdev/devinit/gf100.c | 14 +++++++++++++- drm/nouveau/nvkm/subde...

...s to manually flush and invalidate L2. This will be useful > for Tegra systems for which we want to write instmem using the CPU. > > Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> > --- > drm/nouveau/include/nvkm/subdev/ltc.h | 1 + > drm/nouveau/nvkm/subdev/ltc/gf100.c | 36 +++++++++++++++++++++++++++++++++++ > drm/nouveau/nvkm/subdev/ltc/gk104.c | 2 ++ > drm/nouveau/nvkm/subdev/ltc/gm107.c | 2 ++ > drm/nouveau/nvkm/subdev/ltc/priv.h | 2 ++ > 5 files changed, 43 insertions(+) > > diff --git a/drm/nouveau/include/nvkm/subdev/ltc...

Turns out some VBIOSes don't actually set the bit in question in 2240c. Use the nv50-style detection to try avoiding running the vbios twice. Fixes: a6a0f67ca7aa ("drm/nouveau/devinit/gf100-: detect if BIOS invoked devinit") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97620 Cc: stable at vger.kernel.org # v4.6+ Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- Not sure if this is safe to do esp on GM20x+ boards? drivers/gpu/drm/nouveau/nvkm/subdev/devin...

Turns out some VBIOSes don't actually set the bit in question in 2240c. Use the nv50-style detection to try avoiding running the vbios twice. Fixes: a6a0f67ca7aa ("drm/nouveau/devinit/gf100-: detect if BIOS invoked devinit") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97620 Cc: <stable at vger.kernel.org> # v4.6+ Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- v1 -> v2: add vga.h include (had it sitting in my local tree but forgot to amend the...

Allow fecs to potentially set both methods: - 0x38 STOP_CTXSW - 0x39 START_CTXSW At present the code only ever starts context swap, and never pauses it as appears to be the intent of one caller of gf100_gr_fecs_ctrl_ctxs(). Cc: Ben Skeggs <bskeggs at redhat.com> Fixes: 2642e0b5 ("gr/gf100-: expose fecs methods for pausing ctxsw") Signed-off-by: Rhys Kidd <rhyskidd at gmail.com> --- Ben, I wrote this patch against the commit in https://github.com/skeggsb/nouveau/ Whilst I ha...

...be useful >>> for Tegra systems for which we want to write instmem using the CPU. >>> >>> Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> >>> --- >>> drm/nouveau/include/nvkm/subdev/ltc.h | 1 + >>> drm/nouveau/nvkm/subdev/ltc/gf100.c | 36 +++++++++++++++++++++++++++++++++++ >>> drm/nouveau/nvkm/subdev/ltc/gk104.c | 2 ++ >>> drm/nouveau/nvkm/subdev/ltc/gm107.c | 2 ++ >>> drm/nouveau/nvkm/subdev/ltc/priv.h | 2 ++ >>> 5 files changed, 43 insertions(+) >>> >>>...

...rking with an mmio-constrained pci hierarchy intended almost solely for nvme devices and switches. Binding nouveau to an NV50-based gpu results in a kernel panic as the device cannot be fully mapped. I've made modifications in nv50 and vmm to unbind the driver from this hierarchy, and modified gf100 assuming it will have the same issue. 1/4 also includes a fix where nv50 doesn't look like it checks the return value for nvkm_vmm_new for bar1. I don't know if this was intentional (eg, it could work without it). I'm wholly unfamiliar with linux graphics drivers so let me know if the...

Bits 28:29 of RUNLIST_BASE specify the memory target of the runlist. Set it to 0x3 (SYS_MEM_NONCOHERENT) if the runlist object resides in system memory. Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> --- drm/nouveau/nvkm/engine/fifo/gf100.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drm/nouveau/nvkm/engine/fifo/gf100.c b/drm/nouveau/nvkm/engine/fifo/gf100.c index 36a39c7fd8d2..3cac5ebd0a4b 100644 --- a/drm/nouveau/nvkm/engine/fifo/gf100.c +++ b/drm/nouveau/nvkm/engine/fifo/gf100.c @@ -54,6 +54,7 @@ gf10...

...hat run at very low clocks (e.g. GM20B) and trigger timeout messages. Set the timeout to the default 2s. Also remove the redundant error messages since nvkm_wait_msec() will already display a warning. Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> --- drm/nouveau/nvkm/subdev/ltc/gf100.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drm/nouveau/nvkm/subdev/ltc/gf100.c b/drm/nouveau/nvkm/subdev/ltc/gf100.c index fb0de83da13c..c9eb677967a8 100644 --- a/drm/nouveau/nvkm/subdev/ltc/gf100.c +++ b/drm/nouveau/nvkm/subdev/ltc/gf100.c @@ -129,9 +129,7 @@ gf1...