Ilia Mirkin
2014-Feb-05  05:02 UTC
[Nouveau] [PATCH] nouveau/video: make sure that firmware is present when checking caps
Apparently some players are ill-prepared for us claiming that a decoder
exists only to have creating it fail, and express this poor preparation
with crashes (e.g. flash). Check that firmware is there to increase the
chances of there being a high correlation between reported capabilities
and ability to create a decoder.
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: 10.0 10.1 <mesa-stable at lists.freedesktop.org>
---
I tested this on a VP3 card. Would be nice if someone could give the (somewhat
different) vp2 logic a shot. Emil perhaps? If no one confirms after a while
I'll go swap cards in my computer.
 src/gallium/drivers/nouveau/nouveau_screen.h    |  5 ++
 src/gallium/drivers/nouveau/nouveau_vp3_video.c | 54 +++++++++++++++++++-
 src/gallium/drivers/nouveau/nv50/nv84_video.c   | 68 ++++++++++++++++++++++++-
 3 files changed, 123 insertions(+), 4 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.h
b/src/gallium/drivers/nouveau/nouveau_screen.h
index 7f15d10..51e24fa 100644
--- a/src/gallium/drivers/nouveau/nouveau_screen.h
+++ b/src/gallium/drivers/nouveau/nouveau_screen.h
@@ -49,6 +49,11 @@ struct nouveau_screen {
 
 	boolean hint_buf_keep_sysmem_copy;
 
+	struct {
+		unsigned profiles_checked;
+		unsigned profiles_present;
+	} firmware_info;
+
 #ifdef NOUVEAU_ENABLE_DRIVER_STATISTICS
    union {
       uint64_t v[29];
diff --git a/src/gallium/drivers/nouveau/nouveau_vp3_video.c
b/src/gallium/drivers/nouveau/nouveau_vp3_video.c
index ff00b37..660a3d0 100644
--- a/src/gallium/drivers/nouveau/nouveau_vp3_video.c
+++ b/src/gallium/drivers/nouveau/nouveau_vp3_video.c
@@ -21,6 +21,7 @@
  */
 
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <stdio.h>
 #include <fcntl.h>
 
@@ -350,6 +351,53 @@ nouveau_vp3_load_firmware(struct nouveau_vp3_decoder *dec,
    return 0;
 }
 
+static int
+firmware_present(struct pipe_screen *pscreen, enum pipe_video_profile profile)
+{
+   struct nouveau_screen *screen = nouveau_screen(pscreen);
+   int chipset = screen->device->chipset;
+   int vp3 = chipset < 0xa3 || chipset == 0xaa || chipset == 0xac;
+   int vp5 = chipset >= 0xd0;
+   int ret;
+
+   /* For all chipsets, try to create a BSP objects. Assume that if firmware
+    * is present for it, firmware is also present for VP/PPP */
+   if (!(screen->firmware_info.profiles_checked & 1)) {
+      struct nouveau_object *bsp = NULL;
+      int oclass;
+      if (chipset < 0xc0)
+         oclass = 0x85b1;
+      else if (vp5)
+         oclass = 0x95b1;
+      else
+         oclass = 0x90b1;
+      nouveau_object_new(screen->channel, 0, oclass, NULL, 0, &bsp);
+      if (bsp)
+         screen->firmware_info.profiles_present |= 1;
+      nouveau_object_del(&bsp);
+      screen->firmware_info.profiles_checked |= 1;
+   }
+
+   if (!(screen->firmware_info.profiles_present & 1))
+      return 0;
+
+   /* For vp3/vp4 chipsets, make sure that the relevant firmware is present */
+   if (!vp5 && !(screen->firmware_info.profiles_checked & (1
<< profile))) {
+      char path[PATH_MAX];
+      struct stat s;
+      if (vp3)
+         vp3_getpath(profile, path);
+      else
+         vp4_getpath(profile, path);
+      ret = stat(path, &s);
+      if (!ret && s.st_size > 1000)
+         screen->firmware_info.profiles_present |= (1 << profile);
+      screen->firmware_info.profiles_checked |= (1 << profile);
+   }
+
+   return vp5 || (screen->firmware_info.profiles_present & (1 <<
profile));
+}
+
 int
 nouveau_vp3_screen_get_video_param(struct pipe_screen *pscreen,
                                    enum pipe_video_profile profile,
@@ -363,8 +411,10 @@ nouveau_vp3_screen_get_video_param(struct pipe_screen
*pscreen,
    switch (param) {
    case PIPE_VIDEO_CAP_SUPPORTED:
       /* VP3 does not support MPEG4, VP4+ do. */
-      return profile >= PIPE_VIDEO_PROFILE_MPEG1 && (
-            !vp3 || codec != PIPE_VIDEO_FORMAT_MPEG4);
+      return entrypoint == PIPE_VIDEO_ENTRYPOINT_BITSTREAM &&
+         profile >= PIPE_VIDEO_PROFILE_MPEG1 &&
+         (!vp3 || codec != PIPE_VIDEO_FORMAT_MPEG4) &&
+         firmware_present(pscreen, profile);
    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
       return 1;
    case PIPE_VIDEO_CAP_MAX_WIDTH:
diff --git a/src/gallium/drivers/nouveau/nv50/nv84_video.c
b/src/gallium/drivers/nouveau/nv50/nv84_video.c
index 3fee6d9..a39f572 100644
--- a/src/gallium/drivers/nouveau/nv50/nv84_video.c
+++ b/src/gallium/drivers/nouveau/nv50/nv84_video.c
@@ -741,16 +741,80 @@ error:
    return NULL;
 }
 
+#define FIRMWARE_BSP_KERN  0x01
+#define FIRMWARE_VP_KERN   0x02
+#define FIRMWARE_BSP_H264  0x04
+#define FIRMWARE_VP_MPEG2  0x08
+#define FIRMWARE_VP_H264_1 0x10
+#define FIRMWARE_VP_H264_2 0x20
+#define FIRMWARE_PRESENT(val, fw) (val & FIRMWARE_ ## fw)
+
+static int
+firmware_present(struct pipe_screen *pscreen, enum pipe_video_format codec)
+{
+   struct nouveau_screen *screen = nouveau_screen(pscreen);
+   struct nouveau_object *obj = NULL;
+   struct stat s;
+   int checked = screen->firmware_info.profiles_checked;
+   int present, ret;
+
+   if (!FIRMWARE_PRESENT(checked, VP_KERN)) {
+      nouveau_object_new(screen->channel, 0, 0x7476, NULL, 0, &obj);
+      if (obj)
+         screen->firmware_info.profiles_present |= FIRMWARE_VP_KERN;
+      nouveau_object_del(&obj);
+      screen->firmware_info.profiles_checked |= FIRMWARE_VP_KERN;
+   }
+
+   if (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC) {
+      if (!FIRMWARE_PRESENT(checked, BSP_KERN)) {
+         nouveau_object_new(screen->channel, 0, 0x74b0, NULL, 0, &obj);
+         if (obj)
+            screen->firmware_info.profiles_present |= FIRMWARE_BSP_KERN;
+         nouveau_object_del(&obj);
+         screen->firmware_info.profiles_checked |= FIRMWARE_BSP_KERN;
+      }
+
+      if (!FIRMWARE_PRESENT(checked, VP_H264_1)) {
+         ret = stat("/lib/firmware/nouveau/nv84_vp-h264-1", &s);
+         if (!ret && s.st_size > 1000)
+            screen->firmware_info.profiles_present |= FIRMWARE_VP_H264_1;
+         screen->firmware_info.profiles_checked |= FIRMWARE_VP_H264_1;
+      }
+
+      /* should probably check the others, but assume that 1 means all */
+
+      present = screen->firmware_info.profiles_present;
+      return FIRMWARE_PRESENT(present, VP_KERN) &&
+         FIRMWARE_PRESENT(present, BSP_KERN) &&
+         FIRMWARE_PRESENT(present, VP_H264_1);
+   } else {
+      if (!FIRMWARE_PRESENT(checked, VP_MPEG2)) {
+         ret = stat("/lib/firmware/nouveau/nv84_vp-mpeg12", &s);
+         if (!ret && s.st_size > 1000)
+            screen->firmware_info.profiles_present |= FIRMWARE_VP_MPEG2;
+         screen->firmware_info.profiles_checked |= FIRMWARE_VP_MPEG2;
+      }
+      present = screen->firmware_info.profiles_present;
+      return FIRMWARE_PRESENT(present, VP_KERN) &&
+         FIRMWARE_PRESENT(present, VP_MPEG2);
+   }
+}
+
 int
 nv84_screen_get_video_param(struct pipe_screen *pscreen,
                             enum pipe_video_profile profile,
                             enum pipe_video_entrypoint entrypoint,
                             enum pipe_video_cap param)
 {
+   enum pipe_video_format codec;
+
    switch (param) {
    case PIPE_VIDEO_CAP_SUPPORTED:
-      return u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG4_AVC ||
-         u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG12;
+      codec = u_reduce_video_profile(profile);
+      return (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC ||
+              codec == PIPE_VIDEO_FORMAT_MPEG12) &&
+         firmware_present(pscreen, codec);
    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
       return 1;
    case PIPE_VIDEO_CAP_MAX_WIDTH:
-- 
1.8.3.2
Emil Velikov
2014-Feb-06  14:14 UTC
[Nouveau] [PATCH] nouveau/video: make sure that firmware is present when checking caps
On 05/02/14 05:02, Ilia Mirkin wrote:> Apparently some players are ill-prepared for us claiming that a decoder > exists only to have creating it fail, and express this poor preparation > with crashes (e.g. flash). Check that firmware is there to increase the > chances of there being a high correlation between reported capabilities > and ability to create a decoder. >Not the most elegant implementation, but it just works(tm). Tested on my rusty nv96 (vp2). Tested-by: Emil Velikov <emil.l.velikov at gmail.com>> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> > Cc: 10.0 10.1 <mesa-stable at lists.freedesktop.org> > --- > > I tested this on a VP3 card. Would be nice if someone could give the (somewhat > different) vp2 logic a shot. Emil perhaps? If no one confirms after a while > I'll go swap cards in my computer. > > src/gallium/drivers/nouveau/nouveau_screen.h | 5 ++ > src/gallium/drivers/nouveau/nouveau_vp3_video.c | 54 +++++++++++++++++++- > src/gallium/drivers/nouveau/nv50/nv84_video.c | 68 ++++++++++++++++++++++++- > 3 files changed, 123 insertions(+), 4 deletions(-) > > diff --git a/src/gallium/drivers/nouveau/nouveau_screen.h b/src/gallium/drivers/nouveau/nouveau_screen.h > index 7f15d10..51e24fa 100644 > --- a/src/gallium/drivers/nouveau/nouveau_screen.h > +++ b/src/gallium/drivers/nouveau/nouveau_screen.h > @@ -49,6 +49,11 @@ struct nouveau_screen { > > boolean hint_buf_keep_sysmem_copy; > > + struct { > + unsigned profiles_checked; > + unsigned profiles_present; > + } firmware_info; > + > #ifdef NOUVEAU_ENABLE_DRIVER_STATISTICS > union { > uint64_t v[29]; > diff --git a/src/gallium/drivers/nouveau/nouveau_vp3_video.c b/src/gallium/drivers/nouveau/nouveau_vp3_video.c > index ff00b37..660a3d0 100644 > --- a/src/gallium/drivers/nouveau/nouveau_vp3_video.c > +++ b/src/gallium/drivers/nouveau/nouveau_vp3_video.c > @@ -21,6 +21,7 @@ > */ > > #include <sys/mman.h> > +#include <sys/stat.h> > #include <stdio.h> > #include <fcntl.h> > > @@ -350,6 +351,53 @@ nouveau_vp3_load_firmware(struct nouveau_vp3_decoder *dec, > return 0; > } > > +static int > +firmware_present(struct pipe_screen *pscreen, enum pipe_video_profile profile) > +{ > + struct nouveau_screen *screen = nouveau_screen(pscreen); > + int chipset = screen->device->chipset; > + int vp3 = chipset < 0xa3 || chipset == 0xaa || chipset == 0xac; > + int vp5 = chipset >= 0xd0; > + int ret; > + > + /* For all chipsets, try to create a BSP objects. Assume that if firmware > + * is present for it, firmware is also present for VP/PPP */ > + if (!(screen->firmware_info.profiles_checked & 1)) { > + struct nouveau_object *bsp = NULL; > + int oclass; > + if (chipset < 0xc0) > + oclass = 0x85b1; > + else if (vp5) > + oclass = 0x95b1; > + else > + oclass = 0x90b1; > + nouveau_object_new(screen->channel, 0, oclass, NULL, 0, &bsp); > + if (bsp) > + screen->firmware_info.profiles_present |= 1; > + nouveau_object_del(&bsp); > + screen->firmware_info.profiles_checked |= 1; > + } > + > + if (!(screen->firmware_info.profiles_present & 1)) > + return 0; > + > + /* For vp3/vp4 chipsets, make sure that the relevant firmware is present */ > + if (!vp5 && !(screen->firmware_info.profiles_checked & (1 << profile))) { > + char path[PATH_MAX]; > + struct stat s; > + if (vp3) > + vp3_getpath(profile, path); > + else > + vp4_getpath(profile, path); > + ret = stat(path, &s); > + if (!ret && s.st_size > 1000) > + screen->firmware_info.profiles_present |= (1 << profile); > + screen->firmware_info.profiles_checked |= (1 << profile); > + } > + > + return vp5 || (screen->firmware_info.profiles_present & (1 << profile)); > +} > + > int > nouveau_vp3_screen_get_video_param(struct pipe_screen *pscreen, > enum pipe_video_profile profile, > @@ -363,8 +411,10 @@ nouveau_vp3_screen_get_video_param(struct pipe_screen *pscreen, > switch (param) { > case PIPE_VIDEO_CAP_SUPPORTED: > /* VP3 does not support MPEG4, VP4+ do. */ > - return profile >= PIPE_VIDEO_PROFILE_MPEG1 && ( > - !vp3 || codec != PIPE_VIDEO_FORMAT_MPEG4); > + return entrypoint == PIPE_VIDEO_ENTRYPOINT_BITSTREAM && > + profile >= PIPE_VIDEO_PROFILE_MPEG1 && > + (!vp3 || codec != PIPE_VIDEO_FORMAT_MPEG4) && > + firmware_present(pscreen, profile); > case PIPE_VIDEO_CAP_NPOT_TEXTURES: > return 1; > case PIPE_VIDEO_CAP_MAX_WIDTH: > diff --git a/src/gallium/drivers/nouveau/nv50/nv84_video.c b/src/gallium/drivers/nouveau/nv50/nv84_video.c > index 3fee6d9..a39f572 100644 > --- a/src/gallium/drivers/nouveau/nv50/nv84_video.c > +++ b/src/gallium/drivers/nouveau/nv50/nv84_video.c > @@ -741,16 +741,80 @@ error: > return NULL; > } > > +#define FIRMWARE_BSP_KERN 0x01 > +#define FIRMWARE_VP_KERN 0x02 > +#define FIRMWARE_BSP_H264 0x04 > +#define FIRMWARE_VP_MPEG2 0x08 > +#define FIRMWARE_VP_H264_1 0x10 > +#define FIRMWARE_VP_H264_2 0x20 > +#define FIRMWARE_PRESENT(val, fw) (val & FIRMWARE_ ## fw) > + > +static int > +firmware_present(struct pipe_screen *pscreen, enum pipe_video_format codec) > +{ > + struct nouveau_screen *screen = nouveau_screen(pscreen); > + struct nouveau_object *obj = NULL; > + struct stat s; > + int checked = screen->firmware_info.profiles_checked; > + int present, ret; > + > + if (!FIRMWARE_PRESENT(checked, VP_KERN)) { > + nouveau_object_new(screen->channel, 0, 0x7476, NULL, 0, &obj); > + if (obj) > + screen->firmware_info.profiles_present |= FIRMWARE_VP_KERN; > + nouveau_object_del(&obj); > + screen->firmware_info.profiles_checked |= FIRMWARE_VP_KERN; > + } > + > + if (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC) { > + if (!FIRMWARE_PRESENT(checked, BSP_KERN)) { > + nouveau_object_new(screen->channel, 0, 0x74b0, NULL, 0, &obj); > + if (obj) > + screen->firmware_info.profiles_present |= FIRMWARE_BSP_KERN; > + nouveau_object_del(&obj); > + screen->firmware_info.profiles_checked |= FIRMWARE_BSP_KERN; > + } > + > + if (!FIRMWARE_PRESENT(checked, VP_H264_1)) { > + ret = stat("/lib/firmware/nouveau/nv84_vp-h264-1", &s); > + if (!ret && s.st_size > 1000) > + screen->firmware_info.profiles_present |= FIRMWARE_VP_H264_1; > + screen->firmware_info.profiles_checked |= FIRMWARE_VP_H264_1; > + } > + > + /* should probably check the others, but assume that 1 means all */ > + > + present = screen->firmware_info.profiles_present; > + return FIRMWARE_PRESENT(present, VP_KERN) && > + FIRMWARE_PRESENT(present, BSP_KERN) && > + FIRMWARE_PRESENT(present, VP_H264_1); > + } else { > + if (!FIRMWARE_PRESENT(checked, VP_MPEG2)) { > + ret = stat("/lib/firmware/nouveau/nv84_vp-mpeg12", &s); > + if (!ret && s.st_size > 1000) > + screen->firmware_info.profiles_present |= FIRMWARE_VP_MPEG2; > + screen->firmware_info.profiles_checked |= FIRMWARE_VP_MPEG2; > + } > + present = screen->firmware_info.profiles_present; > + return FIRMWARE_PRESENT(present, VP_KERN) && > + FIRMWARE_PRESENT(present, VP_MPEG2); > + } > +} > + > int > nv84_screen_get_video_param(struct pipe_screen *pscreen, > enum pipe_video_profile profile, > enum pipe_video_entrypoint entrypoint, > enum pipe_video_cap param) > { > + enum pipe_video_format codec; > + > switch (param) { > case PIPE_VIDEO_CAP_SUPPORTED: > - return u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG4_AVC || > - u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG12; > + codec = u_reduce_video_profile(profile); > + return (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC || > + codec == PIPE_VIDEO_FORMAT_MPEG12) && > + firmware_present(pscreen, codec); > case PIPE_VIDEO_CAP_NPOT_TEXTURES: > return 1; > case PIPE_VIDEO_CAP_MAX_WIDTH: >
Ilia Mirkin
2014-Feb-08  20:22 UTC
[Nouveau] [PATCH v2] nouveau/video: make sure that firmware is present when checking caps
Apparently some players are ill-prepared for us claiming that a decoder
exists only to have creating it fail, and express this poor preparation
with crashes (e.g. flash). Check that firmware is there to increase the
chances of there being a high correlation between reported capabilities
and ability to create a decoder.
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: 10.0 10.1 <mesa-stable at lists.freedesktop.org>
Tested-by: Emil Velikov <emil.l.velikov at gmail.com>
---
Have to create a new channel on kepler, otherwise it doesn't work... Emil,
I'm
keeping your tested-by since you tested the nv84_video bits which haven't
changed.
 src/gallium/drivers/nouveau/nouveau_screen.h    |  5 ++
 src/gallium/drivers/nouveau/nouveau_vp3_video.c | 78 ++++++++++++++++++++++++-
 src/gallium/drivers/nouveau/nv50/nv84_video.c   | 68 ++++++++++++++++++++-
 3 files changed, 147 insertions(+), 4 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.h
b/src/gallium/drivers/nouveau/nouveau_screen.h
index 7f15d10..51e24fa 100644
--- a/src/gallium/drivers/nouveau/nouveau_screen.h
+++ b/src/gallium/drivers/nouveau/nouveau_screen.h
@@ -49,6 +49,11 @@ struct nouveau_screen {
 
 	boolean hint_buf_keep_sysmem_copy;
 
+	struct {
+		unsigned profiles_checked;
+		unsigned profiles_present;
+	} firmware_info;
+
 #ifdef NOUVEAU_ENABLE_DRIVER_STATISTICS
    union {
       uint64_t v[29];
diff --git a/src/gallium/drivers/nouveau/nouveau_vp3_video.c
b/src/gallium/drivers/nouveau/nouveau_vp3_video.c
index ff00b37..11cf729 100644
--- a/src/gallium/drivers/nouveau/nouveau_vp3_video.c
+++ b/src/gallium/drivers/nouveau/nouveau_vp3_video.c
@@ -21,6 +21,7 @@
  */
 
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <stdio.h>
 #include <fcntl.h>
 
@@ -350,6 +351,77 @@ nouveau_vp3_load_firmware(struct nouveau_vp3_decoder *dec,
    return 0;
 }
 
+static int
+firmware_present(struct pipe_screen *pscreen, enum pipe_video_profile profile)
+{
+   struct nouveau_screen *screen = nouveau_screen(pscreen);
+   int chipset = screen->device->chipset;
+   int vp3 = chipset < 0xa3 || chipset == 0xaa || chipset == 0xac;
+   int vp5 = chipset >= 0xd0;
+   int ret;
+
+   /* For all chipsets, try to create a BSP objects. Assume that if firmware
+    * is present for it, firmware is also present for VP/PPP */
+   if (!(screen->firmware_info.profiles_checked & 1)) {
+      struct nouveau_object *channel = NULL, *bsp = NULL;
+      struct nv04_fifo nv04_data = {.vram = 0xbeef0201, .gart = 0xbeef0202};
+      struct nvc0_fifo nvc0_args = {};
+      struct nve0_fifo nve0_args = {.engine = NVE0_FIFO_ENGINE_BSP};
+      void *data = NULL;
+      int size, oclass;
+      if (chipset < 0xc0)
+         oclass = 0x85b1;
+      else if (vp5)
+         oclass = 0x95b1;
+      else
+         oclass = 0x90b1;
+
+      if (chipset < 0xc0) {
+         data = &nv04_data;
+         size = sizeof(nv04_data);
+      } else if (chipset < 0xe0) {
+         data = &nvc0_args;
+         size = sizeof(nvc0_args);
+      } else {
+         data = &nve0_args;
+         size = sizeof(nve0_args);
+      }
+
+      /* kepler must have its own channel, so just do this for everyone */
+      nouveau_object_new(&screen->device->object, 0,
+                         NOUVEAU_FIFO_CHANNEL_CLASS,
+                         data, size, &channel);
+
+      if (channel) {
+         nouveau_object_new(channel, 0, oclass, NULL, 0, &bsp);
+         if (bsp)
+            screen->firmware_info.profiles_present |= 1;
+         nouveau_object_del(&bsp);
+         nouveau_object_del(&channel);
+      }
+      screen->firmware_info.profiles_checked |= 1;
+   }
+
+   if (!(screen->firmware_info.profiles_present & 1))
+      return 0;
+
+   /* For vp3/vp4 chipsets, make sure that the relevant firmware is present */
+   if (!vp5 && !(screen->firmware_info.profiles_checked & (1
<< profile))) {
+      char path[PATH_MAX];
+      struct stat s;
+      if (vp3)
+         vp3_getpath(profile, path);
+      else
+         vp4_getpath(profile, path);
+      ret = stat(path, &s);
+      if (!ret && s.st_size > 1000)
+         screen->firmware_info.profiles_present |= (1 << profile);
+      screen->firmware_info.profiles_checked |= (1 << profile);
+   }
+
+   return vp5 || (screen->firmware_info.profiles_present & (1 <<
profile));
+}
+
 int
 nouveau_vp3_screen_get_video_param(struct pipe_screen *pscreen,
                                    enum pipe_video_profile profile,
@@ -363,8 +435,10 @@ nouveau_vp3_screen_get_video_param(struct pipe_screen
*pscreen,
    switch (param) {
    case PIPE_VIDEO_CAP_SUPPORTED:
       /* VP3 does not support MPEG4, VP4+ do. */
-      return profile >= PIPE_VIDEO_PROFILE_MPEG1 && (
-            !vp3 || codec != PIPE_VIDEO_FORMAT_MPEG4);
+      return entrypoint == PIPE_VIDEO_ENTRYPOINT_BITSTREAM &&
+         profile >= PIPE_VIDEO_PROFILE_MPEG1 &&
+         (!vp3 || codec != PIPE_VIDEO_FORMAT_MPEG4) &&
+         firmware_present(pscreen, profile);
    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
       return 1;
    case PIPE_VIDEO_CAP_MAX_WIDTH:
diff --git a/src/gallium/drivers/nouveau/nv50/nv84_video.c
b/src/gallium/drivers/nouveau/nv50/nv84_video.c
index 3fee6d9..a39f572 100644
--- a/src/gallium/drivers/nouveau/nv50/nv84_video.c
+++ b/src/gallium/drivers/nouveau/nv50/nv84_video.c
@@ -741,16 +741,80 @@ error:
    return NULL;
 }
 
+#define FIRMWARE_BSP_KERN  0x01
+#define FIRMWARE_VP_KERN   0x02
+#define FIRMWARE_BSP_H264  0x04
+#define FIRMWARE_VP_MPEG2  0x08
+#define FIRMWARE_VP_H264_1 0x10
+#define FIRMWARE_VP_H264_2 0x20
+#define FIRMWARE_PRESENT(val, fw) (val & FIRMWARE_ ## fw)
+
+static int
+firmware_present(struct pipe_screen *pscreen, enum pipe_video_format codec)
+{
+   struct nouveau_screen *screen = nouveau_screen(pscreen);
+   struct nouveau_object *obj = NULL;
+   struct stat s;
+   int checked = screen->firmware_info.profiles_checked;
+   int present, ret;
+
+   if (!FIRMWARE_PRESENT(checked, VP_KERN)) {
+      nouveau_object_new(screen->channel, 0, 0x7476, NULL, 0, &obj);
+      if (obj)
+         screen->firmware_info.profiles_present |= FIRMWARE_VP_KERN;
+      nouveau_object_del(&obj);
+      screen->firmware_info.profiles_checked |= FIRMWARE_VP_KERN;
+   }
+
+   if (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC) {
+      if (!FIRMWARE_PRESENT(checked, BSP_KERN)) {
+         nouveau_object_new(screen->channel, 0, 0x74b0, NULL, 0, &obj);
+         if (obj)
+            screen->firmware_info.profiles_present |= FIRMWARE_BSP_KERN;
+         nouveau_object_del(&obj);
+         screen->firmware_info.profiles_checked |= FIRMWARE_BSP_KERN;
+      }
+
+      if (!FIRMWARE_PRESENT(checked, VP_H264_1)) {
+         ret = stat("/lib/firmware/nouveau/nv84_vp-h264-1", &s);
+         if (!ret && s.st_size > 1000)
+            screen->firmware_info.profiles_present |= FIRMWARE_VP_H264_1;
+         screen->firmware_info.profiles_checked |= FIRMWARE_VP_H264_1;
+      }
+
+      /* should probably check the others, but assume that 1 means all */
+
+      present = screen->firmware_info.profiles_present;
+      return FIRMWARE_PRESENT(present, VP_KERN) &&
+         FIRMWARE_PRESENT(present, BSP_KERN) &&
+         FIRMWARE_PRESENT(present, VP_H264_1);
+   } else {
+      if (!FIRMWARE_PRESENT(checked, VP_MPEG2)) {
+         ret = stat("/lib/firmware/nouveau/nv84_vp-mpeg12", &s);
+         if (!ret && s.st_size > 1000)
+            screen->firmware_info.profiles_present |= FIRMWARE_VP_MPEG2;
+         screen->firmware_info.profiles_checked |= FIRMWARE_VP_MPEG2;
+      }
+      present = screen->firmware_info.profiles_present;
+      return FIRMWARE_PRESENT(present, VP_KERN) &&
+         FIRMWARE_PRESENT(present, VP_MPEG2);
+   }
+}
+
 int
 nv84_screen_get_video_param(struct pipe_screen *pscreen,
                             enum pipe_video_profile profile,
                             enum pipe_video_entrypoint entrypoint,
                             enum pipe_video_cap param)
 {
+   enum pipe_video_format codec;
+
    switch (param) {
    case PIPE_VIDEO_CAP_SUPPORTED:
-      return u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG4_AVC ||
-         u_reduce_video_profile(profile) == PIPE_VIDEO_FORMAT_MPEG12;
+      codec = u_reduce_video_profile(profile);
+      return (codec == PIPE_VIDEO_FORMAT_MPEG4_AVC ||
+              codec == PIPE_VIDEO_FORMAT_MPEG12) &&
+         firmware_present(pscreen, codec);
    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
       return 1;
    case PIPE_VIDEO_CAP_MAX_WIDTH:
-- 
1.8.3.2
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