[PATCH 1/2] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

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Lyude Paul

24 Aug 2020 24 Aug '20

6:32 p.m.

Not entirely sure why this never came up when I originally tested this (maybe some BIOSes already have this setup?) but the ->caps_init vfunc appears to cause the display engine to throw an exception on driver init, at least on my ThinkPad P72:

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

This is magic nvidia speak for "You need to have the DMA notifier offset programmed before you can call NV507D_GET_CAPABILITIES." So, let's fix this by doing that, and also perform an update afterwards to prevent racing with the GPU when reading capabilities.

Changes since v1: * Don't just program the DMA notifier offset, make sure to actually perform an update

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index e341f572c2696..5e86feec3b720 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -65,13 +65,26 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) int core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) { - u32 *push = evo_wait(&disp->core->chan, 2); + struct nv50_core *core = disp->core; + u32 interlock[NV50_DISP_INTERLOCK__SIZE] = {0}; + u32 *push;

- if (push) { - evo_mthd(push, 0x008c, 1); - evo_data(push, 0x0); - evo_kick(push, &disp->core->chan); - } + core->func->ntfy_init(disp->sync, NV50_DISP_CORE_NTFY); + + push = evo_wait(&core->chan, 4); + if (!push) + return 0; + + evo_mthd(push, 0x0084, 1); + evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY); + evo_mthd(push, 0x008c, 1); + evo_data(push, 0x0); + evo_kick(push, &core->chan); + + core->func->update(core, interlock, false); + if (core->func->ntfy_wait_done(disp->sync, NV50_DISP_CORE_NTFY, + core->chan.base.device)) + NV_ERROR(drm, "core notifier timeout\n");

return 0; }

-- 2.26.2

Show replies by date

Ben Skeggs

24 Aug 24 Aug

10:28 p.m.

New subject: [Nouveau] [PATCH 1/2] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

On Tue, 25 Aug 2020 at 04:33, Lyude Paul lyude@redhat.com wrote:

...

Not entirely sure why this never came up when I originally tested this (maybe some BIOSes already have this setup?) but the ->caps_init vfunc appears to cause the display engine to throw an exception on driver init, at least on my ThinkPad P72:

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

This is magic nvidia speak for "You need to have the DMA notifier offset programmed before you can call NV507D_GET_CAPABILITIES." So, let's fix this by doing that, and also perform an update afterwards to prevent racing with the GPU when reading capabilities.

Changes since v1:

Don't just program the DMA notifier offset, make sure to actually perform an update

I'm not sure there's a need to send an Update() method here, I believe GetCapabilities() is an action method on its own right?

Ben.

...

Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+

drivers/gpu/drm/nouveau/dispnv50/core507d.c | 25 ++++++++++++++++----- 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index e341f572c2696..5e86feec3b720 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -65,13 +65,26 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) int core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) {
  u32 *push = evo_wait(&disp->core->chan, 2);
  struct nv50_core *core = disp->core;
  u32 interlock[NV50_DISP_INTERLOCK__SIZE] = {0};
  u32 *push;
  if (push) {
          evo_mthd(push, 0x008c, 1);
          evo_data(push, 0x0);
          evo_kick(push, &disp->core->chan);
  }
  core->func->ntfy_init(disp->sync, NV50_DISP_CORE_NTFY);
  push = evo_wait(&core->chan, 4);
  if (!push)
          return 0;
  evo_mthd(push, 0x0084, 1);
  evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY);
  evo_mthd(push, 0x008c, 1);
  evo_data(push, 0x0);
  evo_kick(push, &core->chan);
  core->func->update(core, interlock, false);
  if (core->func->ntfy_wait_done(disp->sync, NV50_DISP_CORE_NTFY,
                                 core->chan.base.device))
          NV_ERROR(drm, "core notifier timeout\n");

  return 0;
}

2.26.2

Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau

Lyude Paul

25 Aug 25 Aug

4:52 p.m.

New subject: [Nouveau] [PATCH 1/2] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

On Tue, 2020-08-25 at 08:28 +1000, Ben Skeggs wrote:

...

On Tue, 25 Aug 2020 at 04:33, Lyude Paul lyude@redhat.com wrote:

...
Not entirely sure why this never came up when I originally tested this (maybe some BIOSes already have this setup?) but the ->caps_init vfunc appears to cause the display engine to throw an exception on driver init, at least on my ThinkPad P72:

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

This is magic nvidia speak for "You need to have the DMA notifier offset programmed before you can call NV507D_GET_CAPABILITIES." So, let's fix this by doing that, and also perform an update afterwards to prevent racing with the GPU when reading capabilities.

Changes since v1:

Don't just program the DMA notifier offset, make sure to actually perform an update

I'm not sure there's a need to send an Update() method here, I believe GetCapabilities() is an action method on its own right?

I'm not entirely sure about this part tbh. I do know that we need to call GetCapabilities() _after_ the DMA notifier offset is programmed. But, my assumption was that if GetCapabilities() requires a DMA notifier offset to store its results in, we'd probably want to fire an update or something to make sure that we're not reading before it finishes writing capabilities?

...

Ben.

...
Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+

drivers/gpu/drm/nouveau/dispnv50/core507d.c | 25 ++++++++++++++++----- 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index e341f572c2696..5e86feec3b720 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -65,13 +65,26 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) int core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) {
  u32 *push = evo_wait(&disp->core->chan, 2);
  struct nv50_core *core = disp->core;
  u32 interlock[NV50_DISP_INTERLOCK__SIZE] = {0};
  u32 *push;
  if (push) {
          evo_mthd(push, 0x008c, 1);
          evo_data(push, 0x0);
          evo_kick(push, &disp->core->chan);
  }
  core->func->ntfy_init(disp->sync, NV50_DISP_CORE_NTFY);
  push = evo_wait(&core->chan, 4);
  if (!push)
          return 0;
  evo_mthd(push, 0x0084, 1);
  evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY);
  evo_mthd(push, 0x008c, 1);
  evo_data(push, 0x0);
  evo_kick(push, &core->chan);
  core->func->update(core, interlock, false);
  if (core->func->ntfy_wait_done(disp->sync, NV50_DISP_CORE_NTFY,
                                 core->chan.base.device))
          NV_ERROR(drm, "core notifier timeout\n");

  return 0;
}

2.26.2

Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau

-- Sincerely, Lyude Paul (she/her) Software Engineer at Red Hat

Ben Skeggs

31 Aug 31 Aug

4:26 a.m.

New subject: [Nouveau] [PATCH 1/2] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

On Wed, 26 Aug 2020 at 02:52, Lyude Paul lyude@redhat.com wrote:

...

On Tue, 2020-08-25 at 08:28 +1000, Ben Skeggs wrote:

...
On Tue, 25 Aug 2020 at 04:33, Lyude Paul lyude@redhat.com wrote:

...
Not entirely sure why this never came up when I originally tested this (maybe some BIOSes already have this setup?) but the ->caps_init vfunc appears to cause the display engine to throw an exception on driver init, at least on my ThinkPad P72:

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

This is magic nvidia speak for "You need to have the DMA notifier offset programmed before you can call NV507D_GET_CAPABILITIES." So, let's fix this by doing that, and also perform an update afterwards to prevent racing with the GPU when reading capabilities.

Changes since v1:

Don't just program the DMA notifier offset, make sure to actually perform an update

I'm not sure there's a need to send an Update() method here, I believe GetCapabilities() is an action method on its own right?

I'm not entirely sure about this part tbh. I do know that we need to call GetCapabilities() _after_ the DMA notifier offset is programmed. But, my assumption was that if GetCapabilities() requires a DMA notifier offset to store its results in, we'd probably want to fire an update or something to make sure that we're not reading before it finishes writing capabilities?

We definitely want to *wait* on GetCapabilities() finishing, I believe it should also update the notifier the same (or similar) way Update() does. But I don't think we want to send an Update() here, it'll actually trigger a modeset (which, on earlier HW, will tear down the boot mode. Not sure about current HW, it might preserve state), and we may not want that to happen there.

Ben.

...

...
Ben.

...
Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+

drivers/gpu/drm/nouveau/dispnv50/core507d.c | 25 ++++++++++++++++----- 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index e341f572c2696..5e86feec3b720 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -65,13 +65,26 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) int core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) {
  u32 *push = evo_wait(&disp->core->chan, 2);
  struct nv50_core *core = disp->core;
  u32 interlock[NV50_DISP_INTERLOCK__SIZE] = {0};
  u32 *push;
  if (push) {
          evo_mthd(push, 0x008c, 1);
          evo_data(push, 0x0);
          evo_kick(push, &disp->core->chan);
  }
  core->func->ntfy_init(disp->sync, NV50_DISP_CORE_NTFY);
  push = evo_wait(&core->chan, 4);
  if (!push)
          return 0;
  evo_mthd(push, 0x0084, 1);
  evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY);
  evo_mthd(push, 0x008c, 1);
  evo_data(push, 0x0);
  evo_kick(push, &core->chan);
  core->func->update(core, interlock, false);
  if (core->func->ntfy_wait_done(disp->sync, NV50_DISP_CORE_NTFY,
                                 core->chan.base.device))
          NV_ERROR(drm, "core notifier timeout\n");

  return 0;
}

2.26.2

Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau
-- Sincerely, Lyude Paul (she/her) Software Engineer at Red Hat

Lyude Paul

1 Sep 1 Sep

8:43 p.m.

New subject: [Nouveau] [PATCH 1/2] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

On Mon, 2020-08-31 at 14:26 +1000, Ben Skeggs wrote:

...

On Wed, 26 Aug 2020 at 02:52, Lyude Paul lyude@redhat.com wrote:

...
On Tue, 2020-08-25 at 08:28 +1000, Ben Skeggs wrote:

...
On Tue, 25 Aug 2020 at 04:33, Lyude Paul lyude@redhat.com wrote:

...
Not entirely sure why this never came up when I originally tested this (maybe some BIOSes already have this setup?) but the ->caps_init vfunc appears to cause the display engine to throw an exception on driver init, at least on my ThinkPad P72:

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

This is magic nvidia speak for "You need to have the DMA notifier offset programmed before you can call NV507D_GET_CAPABILITIES." So, let's fix this by doing that, and also perform an update afterwards to prevent racing with the GPU when reading capabilities.

Changes since v1:

Don't just program the DMA notifier offset, make sure to actually perform an update

I'm not sure there's a need to send an Update() method here, I believe GetCapabilities() is an action method on its own right?

I'm not entirely sure about this part tbh. I do know that we need to call GetCapabilities() _after_ the DMA notifier offset is programmed. But, my assumption was that if GetCapabilities() requires a DMA notifier offset to store its results in, we'd probably want to fire an update or something to make sure that we're not reading before it finishes writing capabilities?

We definitely want to *wait* on GetCapabilities() finishing, I believe it should also update the notifier the same (or similar) way Update() does. But I don't think we want to send an Update() here, it'll actually trigger a modeset (which, on earlier HW, will tear down the boot mode. Not sure about current HW, it might preserve state), and we may not want that to happen there.

I'm not so sure about that, as it seems like the notifier times out without the update:

[ 5.142033] nouveau 0000:1f:00.0: DRM: [DRM/00000000:kmsChanPush] 00000000: 00040088 mthd 0x0088 size 1 - core507d_init [ 5.142037] nouveau 0000:1f:00.0: DRM: [DRM/00000000:kmsChanPush] 00000004: f0000000-> NV507D_SET_CONTEXT_DMA_NOTIFIER [ 5.142041] nouveau 0000:1f:00.0: DRM: [DRM/00000000:kmsChanPush] 00000008: 00040084 mthd 0x0084 size 1 - core507d_caps_init [ 5.142044] nouveau 0000:1f:00.0: DRM: [DRM/00000000:kmsChanPush] 0000000c: 80000000-> NV507D_SET_NOTIFIER_CONTROL [ 5.142047] nouveau 0000:1f:00.0: DRM: [DRM/00000000:kmsChanPush] 00000010: 0004008c mthd 0x008c size 1 - core507d_caps_init [ 5.142050] nouveau 0000:1f:00.0: DRM: [DRM/00000000:kmsChanPush] 00000014: 00000000-> NV507D_GET_CAPABILITIES [ 7.142026] nouveau 0000:1f:00.0: DRM: core notifier timeout [ 7.142700] nouveau 0000:1f:00.0: DRM: sor-0002-0fc1 caps: dp_interlace=0 [ 7.142708] nouveau 0000:1f:00.0: DRM: sor-0002-0fc4 caps: dp_interlace=0 [ 7.142715] nouveau 0000:1f:00.0: DRM: sor-0002-0f42 caps: dp_interlace=0 [ 7.142829] nouveau 0000:1f:00.0: DRM: sor-0006-0f82 caps: dp_interlace=0 [ 7.142842] nouveau 0000:1f:00.0: DRM: sor-0002-0f82 caps: dp_interlace=0 [ 7.142849] nouveau 0000:1f:00.0: DRM: failed to create encoder 1/8/0: -19 [ 7.142851] nouveau 0000:1f:00.0: DRM: Virtual-1 has no encoders, removing

Any other alternatives to UPDATE we might want to try?

...

Ben.

...
...
Ben.

...
Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+

drivers/gpu/drm/nouveau/dispnv50/core507d.c | 25 ++++++++++++++++----- 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index e341f572c2696..5e86feec3b720 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -65,13 +65,26 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) int core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) {
  u32 *push = evo_wait(&disp->core->chan, 2);
  struct nv50_core *core = disp->core;
  u32 interlock[NV50_DISP_INTERLOCK__SIZE] = {0};
  u32 *push;
  if (push) {
          evo_mthd(push, 0x008c, 1);
          evo_data(push, 0x0);
          evo_kick(push, &disp->core->chan);
  }
  core->func->ntfy_init(disp->sync, NV50_DISP_CORE_NTFY);
  push = evo_wait(&core->chan, 4);
  if (!push)
          return 0;
  evo_mthd(push, 0x0084, 1);
  evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY);
  evo_mthd(push, 0x008c, 1);
  evo_data(push, 0x0);
  evo_kick(push, &core->chan);
  core->func->update(core, interlock, false);
  if (core->func->ntfy_wait_done(disp->sync, NV50_DISP_CORE_NTFY,
                                 core->chan.base.device))
          NV_ERROR(drm, "core notifier timeout\n");

  return 0;
}

2.26.2

Nouveau mailing list Nouveau@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/nouveau
-- Sincerely, Lyude Paul (she/her) Software Engineer at Red Hat

-- Sincerely, Lyude Paul (she/her) Software Engineer at Red Hat

Lyude Paul

11:38 p.m.

New subject: [PATCH v3] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

v2: * Don't just program the DMA notifier offset, make sure to actually perform an update v3: * Don't call UPDATE() * Actually read the correct notifier fields, as apparently the CAPABILITIES_DONE field lives in a different location than the main NV_DISP_CORE_NOTIFIER_1 field. As well, 907d+ use a different CAPABILITIES_DONE field then pre-907d cards.

Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+ --- drivers/gpu/drm/nouveau/dispnv50/core.h | 2 ++ drivers/gpu/drm/nouveau/dispnv50/core507d.c | 34 +++++++++++++++++-- drivers/gpu/drm/nouveau/dispnv50/core907d.c | 33 +++++++++++++++++- drivers/gpu/drm/nouveau/dispnv50/core917d.c | 2 +- drivers/gpu/drm/nouveau/dispnv50/disp.h | 2 ++ .../drm/nouveau/include/nvhw/class/cl507d.h | 5 ++- .../drm/nouveau/include/nvhw/class/cl907d.h | 4 +++ 7 files changed, 77 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core.h b/drivers/gpu/drm/nouveau/dispnv50/core.h index 498622c0c670d..b789139e5fff6 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core.h +++ b/drivers/gpu/drm/nouveau/dispnv50/core.h @@ -44,6 +44,7 @@ int core507d_new_(const struct nv50_core_func *, struct nouveau_drm *, s32, struct nv50_core **); int core507d_init(struct nv50_core *); void core507d_ntfy_init(struct nouveau_bo *, u32); +int core507d_read_caps(struct nv50_disp *disp, u32 offset); int core507d_caps_init(struct nouveau_drm *, struct nv50_disp *); int core507d_ntfy_wait_done(struct nouveau_bo *, u32, struct nvif_device *); int core507d_update(struct nv50_core *, u32 *, bool); @@ -55,6 +56,7 @@ extern const struct nv50_outp_func pior507d; int core827d_new(struct nouveau_drm *, s32, struct nv50_core **);

int core907d_new(struct nouveau_drm *, s32, struct nv50_core **); +int core907d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp); extern const struct nv50_outp_func dac907d; extern const struct nv50_outp_func sor907d;

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index ad1f09a143aa4..3ec4c3a238c41 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -75,18 +75,48 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) }

int -core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +core507d_read_caps(struct nv50_disp *disp, u32 offset) { struct nvif_push *push = disp->core->chan.push; int ret;

- if ((ret = PUSH_WAIT(push, 2))) + ret = PUSH_WAIT(push, 4); + if (ret) return ret;

+ PUSH_MTHD(push, NV507D, SET_NOTIFIER_CONTROL, + NVDEF(NV507D, SET_NOTIFIER_CONTROL, MODE, WRITE) | + NVVAL(NV507D, SET_NOTIFIER_CONTROL, OFFSET, offset >> 2) | + NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, ENABLE)); PUSH_MTHD(push, NV507D, GET_CAPABILITIES, 0x00000000); + return PUSH_KICK(push); }

+int +core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +{ + struct nv50_core *core = disp->core; + struct nouveau_bo *bo = disp->sync; + s64 time; + + NVBO_WR32(bo, NV50_DISP_CAPS_NTFY1, NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, + NVDEF(NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, FALSE)); + + core507d_read_caps(disp, NV50_DISP_CAPS_NTFY1); + + time = nvif_msec(core->chan.base.device, 2000ULL, + if (NVBO_TD32(bo, NV50_DISP_CAPS_NTFY1, + NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, ==, TRUE)) + break; + usleep_range(1, 2); + ); + if (time < 0) + NV_ERROR(drm, "core caps notifier timeout\n"); + + return 0; +} + int core507d_init(struct nv50_core *core) { diff --git a/drivers/gpu/drm/nouveau/dispnv50/core907d.c b/drivers/gpu/drm/nouveau/dispnv50/core907d.c index b17c03529c784..8a2005adb0e2f 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core907d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core907d.c @@ -22,11 +22,42 @@ #include "core.h" #include "head.h"

+#include <nvif/push507c.h> +#include <nvif/timer.h> + +#include <nvhw/class/cl907d.h> + +#include "nouveau_bo.h" + +int +core907d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +{ + struct nv50_core *core = disp->core; + struct nouveau_bo *bo = disp->sync; + s64 time; + + NVBO_WR32(bo, NV50_DISP_CAPS_NTFY4, NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, + NVDEF(NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, FALSE)); + + core507d_read_caps(disp, NV50_DISP_CAPS_NTFY4); + + time = nvif_msec(core->chan.base.device, 2000ULL, + if (NVBO_TD32(bo, NV50_DISP_CAPS_NTFY4, + NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, ==, TRUE)) + break; + usleep_range(1, 2); + ); + if (time < 0) + NV_ERROR(drm, "core caps notifier timeout\n"); + + return 0; +} + static const struct nv50_core_func core907d = { .init = core507d_init, .ntfy_init = core507d_ntfy_init, - .caps_init = core507d_caps_init, + .caps_init = core907d_caps_init, .ntfy_wait_done = core507d_ntfy_wait_done, .update = core507d_update, .head = &head907d, diff --git a/drivers/gpu/drm/nouveau/dispnv50/core917d.c b/drivers/gpu/drm/nouveau/dispnv50/core917d.c index 66846f3720805..1cd3a2a35dfb7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core917d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core917d.c @@ -26,7 +26,7 @@ static const struct nv50_core_func core917d = { .init = core507d_init, .ntfy_init = core507d_ntfy_init, - .caps_init = core507d_caps_init, + .caps_init = core907d_caps_init, .ntfy_wait_done = core507d_ntfy_wait_done, .update = core507d_update, .head = &head917d, diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.h b/drivers/gpu/drm/nouveau/dispnv50/disp.h index 92bddc0836171..a59051bd070d7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.h +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.h @@ -16,6 +16,8 @@ struct nv50_disp {

#define NV50_DISP_SYNC(c, o) ((c) * 0x040 + (o)) #define NV50_DISP_CORE_NTFY NV50_DISP_SYNC(0 , 0x00) +#define NV50_DISP_CAPS_NTFY1 NV50_DISP_SYNC(0 , 0x01) +#define NV50_DISP_CAPS_NTFY4 NV50_DISP_SYNC(0 , 0x04) #define NV50_DISP_WNDW_SEM0(c) NV50_DISP_SYNC(1 + (c), 0x00) #define NV50_DISP_WNDW_SEM1(c) NV50_DISP_SYNC(1 + (c), 0x10) #define NV50_DISP_WNDW_NTFY(c) NV50_DISP_SYNC(1 + (c), 0x20) diff --git a/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h b/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h index 2e444bac701dd..6a463f308b64f 100644 --- a/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h +++ b/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h @@ -32,7 +32,10 @@ #define NV_DISP_CORE_NOTIFIER_1_COMPLETION_0_DONE_TRUE 0x00000001 #define NV_DISP_CORE_NOTIFIER_1_COMPLETION_0_R0 15:1 #define NV_DISP_CORE_NOTIFIER_1_COMPLETION_0_TIMESTAMP 29:16 - +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1 0x00000001 +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1_DONE 0:0 +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1_DONE_FALSE 0x00000000 +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1_DONE_TRUE 0x00000001

// class methods #define NV507D_UPDATE (0x00000080) diff --git a/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h b/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h index 34bc3eafac7d1..79aff6ff31385 100644 --- a/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h +++ b/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h @@ -24,6 +24,10 @@ #ifndef _cl907d_h_ #define _cl907d_h_

+#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4 0x00000004 +#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4_DONE 0:0 +#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4_DONE_FALSE 0x00000000 +#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4_DONE_TRUE 0x00000001 #define NV907D_CORE_NOTIFIER_3_CAPABILITIES_CAP_SOR0_20 0x00000014 #define NV907D_CORE_NOTIFIER_3_CAPABILITIES_CAP_SOR0_20_SINGLE_LVDS18 0:0 #define NV907D_CORE_NOTIFIER_3_CAPABILITIES_CAP_SOR0_20_SINGLE_LVDS18_FALSE 0x00000000

-- 2.26.2

Lyude Paul

11:42 p.m.

New subject: [PATCH v4] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+ --- drivers/gpu/drm/nouveau/dispnv50/core.h | 2 + drivers/gpu/drm/nouveau/dispnv50/core507d.c | 37 ++++++++++++++++++- drivers/gpu/drm/nouveau/dispnv50/core907d.c | 36 +++++++++++++++++- drivers/gpu/drm/nouveau/dispnv50/core917d.c | 2 +- drivers/gpu/drm/nouveau/dispnv50/disp.h | 2 + .../drm/nouveau/include/nvhw/class/cl507d.h | 5 ++- .../drm/nouveau/include/nvhw/class/cl907d.h | 4 ++ 7 files changed, 83 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index ad1f09a143aa4..d0f2b80a32103 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -75,18 +75,51 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) }

int -core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +core507d_read_caps(struct nv50_disp *disp, u32 offset) { struct nvif_push *push = disp->core->chan.push; int ret;

- if ((ret = PUSH_WAIT(push, 2))) + ret = PUSH_WAIT(push, 4); + if (ret) return ret;

+int +core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +{ + struct nv50_core *core = disp->core; + struct nouveau_bo *bo = disp->sync; + s64 time; + int ret; + + NVBO_WR32(bo, NV50_DISP_CAPS_NTFY1, NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, + NVDEF(NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, FALSE)); + + ret = core507d_read_caps(disp, NV50_DISP_CAPS_NTFY1); + if (ret < 0) + return ret; + + time = nvif_msec(core->chan.base.device, 2000ULL, + if (NVBO_TD32(bo, NV50_DISP_CAPS_NTFY1, + NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, ==, TRUE)) + break; + usleep_range(1, 2); + ); + if (time < 0) + NV_ERROR(drm, "core caps notifier timeout\n"); + + return 0; +} + int core507d_init(struct nv50_core *core) { diff --git a/drivers/gpu/drm/nouveau/dispnv50/core907d.c b/drivers/gpu/drm/nouveau/dispnv50/core907d.c index b17c03529c784..45505a18aca17 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core907d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core907d.c @@ -22,11 +22,45 @@ #include "core.h" #include "head.h"

+#include <nvif/push507c.h> +#include <nvif/timer.h> + +#include <nvhw/class/cl907d.h> + +#include "nouveau_bo.h" + +int +core907d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +{ + struct nv50_core *core = disp->core; + struct nouveau_bo *bo = disp->sync; + s64 time; + int ret; + + NVBO_WR32(bo, NV50_DISP_CAPS_NTFY4, NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, + NVDEF(NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, FALSE)); + + ret = core507d_read_caps(disp, NV50_DISP_CAPS_NTFY4); + if (ret < 0) + return ret; + + time = nvif_msec(core->chan.base.device, 2000ULL, + if (NVBO_TD32(bo, NV50_DISP_CAPS_NTFY4, + NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, ==, TRUE)) + break; + usleep_range(1, 2); + ); + if (time < 0) + NV_ERROR(drm, "core caps notifier timeout\n"); + + return 0; +} + static const struct nv50_core_func core907d = { .init = core507d_init, .ntfy_init = core507d_ntfy_init, - .caps_init = core507d_caps_init, + .caps_init = core907d_caps_init, .ntfy_wait_done = core507d_ntfy_wait_done, .update = core507d_update, .head = &head907d, diff --git a/drivers/gpu/drm/nouveau/dispnv50/core917d.c b/drivers/gpu/drm/nouveau/dispnv50/core917d.c index 66846f3720805..1cd3a2a35dfb7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core917d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core917d.c @@ -26,7 +26,7 @@ static const struct nv50_core_func core917d = { .init = core507d_init, .ntfy_init = core507d_ntfy_init, - .caps_init = core507d_caps_init, + .caps_init = core907d_caps_init, .ntfy_wait_done = core507d_ntfy_wait_done, .update = core507d_update, .head = &head917d, diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.h b/drivers/gpu/drm/nouveau/dispnv50/disp.h index 92bddc0836171..a59051bd070d7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.h +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.h @@ -16,6 +16,8 @@ struct nv50_disp {

-- 2.26.2

Ben Skeggs

3 Sep 3 Sep

5:15 a.m.

New subject: [Nouveau] [PATCH v4] drm/nouveau/kms/nv50-: Program notifier offset before requesting disp caps

On Wed, 2 Sep 2020 at 09:43, Lyude Paul lyude@redhat.com wrote:

...

Not entirely sure why this never came up when I originally tested this (maybe some BIOSes already have this setup?) but the ->caps_init vfunc appears to cause the display engine to throw an exception on driver init, at least on my ThinkPad P72:

nouveau 0000:01:00.0: disp: chid 0 mthd 008c data 00000000 0000508c 0000102b

This is magic nvidia speak for "You need to have the DMA notifier offset programmed before you can call NV507D_GET_CAPABILITIES." So, let's fix this by doing that, and also perform an update afterwards to prevent racing with the GPU when reading capabilities.

v2:

Don't just program the DMA notifier offset, make sure to actually perform an update

v3:

Don't call UPDATE()

Actually read the correct notifier fields, as apparently the CAPABILITIES_DONE field lives in a different location than the main NV_DISP_CORE_NOTIFIER_1 field. As well, 907d+ use a different CAPABILITIES_DONE field then pre-907d cards.

v4:

Don't forget to check the return value of core507d_read_caps()

Signed-off-by: Lyude Paul lyude@redhat.com Fixes: 4a2cb4181b07 ("drm/nouveau/kms/nv50-: Probe SOR and PIOR caps for DP interlacing support") Cc: stable@vger.kernel.org # v5.8+

drivers/gpu/drm/nouveau/dispnv50/core.h | 2 + drivers/gpu/drm/nouveau/dispnv50/core507d.c | 37 ++++++++++++++++++- drivers/gpu/drm/nouveau/dispnv50/core907d.c | 36 +++++++++++++++++- drivers/gpu/drm/nouveau/dispnv50/core917d.c | 2 +- drivers/gpu/drm/nouveau/dispnv50/disp.h | 2 + .../drm/nouveau/include/nvhw/class/cl507d.h | 5 ++- .../drm/nouveau/include/nvhw/class/cl907d.h | 4 ++ 7 files changed, 83 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core.h b/drivers/gpu/drm/nouveau/dispnv50/core.h index 498622c0c670d..b789139e5fff6 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core.h +++ b/drivers/gpu/drm/nouveau/dispnv50/core.h @@ -44,6 +44,7 @@ int core507d_new_(const struct nv50_core_func *, struct nouveau_drm *, s32, struct nv50_core **); int core507d_init(struct nv50_core *); void core507d_ntfy_init(struct nouveau_bo *, u32); +int core507d_read_caps(struct nv50_disp *disp, u32 offset); int core507d_caps_init(struct nouveau_drm *, struct nv50_disp *); int core507d_ntfy_wait_done(struct nouveau_bo *, u32, struct nvif_device *); int core507d_update(struct nv50_core *, u32 *, bool); @@ -55,6 +56,7 @@ extern const struct nv50_outp_func pior507d; int core827d_new(struct nouveau_drm *, s32, struct nv50_core **);

int core907d_new(struct nouveau_drm *, s32, struct nv50_core **); +int core907d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp); extern const struct nv50_outp_func dac907d; extern const struct nv50_outp_func sor907d;

diff --git a/drivers/gpu/drm/nouveau/dispnv50/core507d.c b/drivers/gpu/drm/nouveau/dispnv50/core507d.c index ad1f09a143aa4..d0f2b80a32103 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core507d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core507d.c @@ -75,18 +75,51 @@ core507d_ntfy_init(struct nouveau_bo *bo, u32 offset) }

int -core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +core507d_read_caps(struct nv50_disp *disp, u32 offset) { struct nvif_push *push = disp->core->chan.push; int ret;
  if ((ret = PUSH_WAIT(push, 2)))
  ret = PUSH_WAIT(push, 4);
  if (ret)
          return ret;
  PUSH_MTHD(push, NV507D, SET_NOTIFIER_CONTROL,
            NVDEF(NV507D, SET_NOTIFIER_CONTROL, MODE, WRITE) |
            NVVAL(NV507D, SET_NOTIFIER_CONTROL, OFFSET, offset >> 2) |
            NVDEF(NV507D, SET_NOTIFIER_CONTROL, NOTIFY, ENABLE));
  PUSH_MTHD(push, NV507D, GET_CAPABILITIES, 0x00000000);

Can you send a SET_NOTIFIER_CONTROL_NOTIFY_DISABLE after GET_CAPABILITIES() too please :)

...

```
  return PUSH_KICK(push);
```

}

+int +core507d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +{

```
  struct nv50_core *core = disp->core;
```
```
  struct nouveau_bo *bo = disp->sync;
```
```
  s64 time;
```
```
  int ret;
```

  NVBO_WR32(bo, NV50_DISP_CAPS_NTFY1, NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1,

                                NVDEF(NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, FALSE));

You don't need these NV50_DISP_CAPS_NTFYx thingies. These offsets are already encoded in NVIDIA's headers (NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1 is an offset), you're adding an additional offset by doing this. Just use NV50_DISP_CORE_NTFY in all these places, and let NVIDIA's headers do the rest.

The additional offset in these macros are meant for when there's multiple structures packed into a single nouveau_bo at different offsets.

It doesn't actually matter here, because it gets divided away. But for core907d, you're actually reading CAPABILITIES_5 (which, weirdly, seems to contain an identical value).

...

  ret = core507d_read_caps(disp, NV50_DISP_CAPS_NTFY1);
  if (ret < 0)
          return ret;
  time = nvif_msec(core->chan.base.device, 2000ULL,
                   if (NVBO_TD32(bo, NV50_DISP_CAPS_NTFY1,
                                 NV_DISP_CORE_NOTIFIER_1, CAPABILITIES_1, DONE, ==, TRUE))
                           break;
                   usleep_range(1, 2);
                   );
  if (time < 0)
          NV_ERROR(drm, "core caps notifier timeout\n");
  return 0;
+}

int core507d_init(struct nv50_core *core) { diff --git a/drivers/gpu/drm/nouveau/dispnv50/core907d.c b/drivers/gpu/drm/nouveau/dispnv50/core907d.c index b17c03529c784..45505a18aca17 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core907d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core907d.c @@ -22,11 +22,45 @@ #include "core.h" #include "head.h"

+#include <nvif/push507c.h> +#include <nvif/timer.h>

+#include <nvhw/class/cl907d.h>

+#include "nouveau_bo.h"

+int +core907d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp) +{
  struct nv50_core *core = disp->core;
  struct nouveau_bo *bo = disp->sync;
  s64 time;
  int ret;
  NVBO_WR32(bo, NV50_DISP_CAPS_NTFY4, NV907D_CORE_NOTIFIER_3, CAPABILITIES_4,
                                NVDEF(NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, FALSE));
  ret = core507d_read_caps(disp, NV50_DISP_CAPS_NTFY4);
  if (ret < 0)
          return ret;
  time = nvif_msec(core->chan.base.device, 2000ULL,
                   if (NVBO_TD32(bo, NV50_DISP_CAPS_NTFY4,
                                 NV907D_CORE_NOTIFIER_3, CAPABILITIES_4, DONE, ==, TRUE))
                           break;
                   usleep_range(1, 2);
                   );
  if (time < 0)
          NV_ERROR(drm, "core caps notifier timeout\n");
  return 0;
+}

static const struct nv50_core_func core907d = { .init = core507d_init, .ntfy_init = core507d_ntfy_init,
  .caps_init = core507d_caps_init,
  .caps_init = core907d_caps_init,
  .ntfy_wait_done = core507d_ntfy_wait_done,
  .update = core507d_update,
  .head = &head907d,
diff --git a/drivers/gpu/drm/nouveau/dispnv50/core917d.c b/drivers/gpu/drm/nouveau/dispnv50/core917d.c index 66846f3720805..1cd3a2a35dfb7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/core917d.c +++ b/drivers/gpu/drm/nouveau/dispnv50/core917d.c @@ -26,7 +26,7 @@ static const struct nv50_core_func core917d = { .init = core507d_init, .ntfy_init = core507d_ntfy_init,
  .caps_init = core507d_caps_init,
  .caps_init = core907d_caps_init,
  .ntfy_wait_done = core507d_ntfy_wait_done,
  .update = core507d_update,
  .head = &head917d,
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.h b/drivers/gpu/drm/nouveau/dispnv50/disp.h index 92bddc0836171..a59051bd070d7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.h +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.h @@ -16,6 +16,8 @@ struct nv50_disp {

#define NV50_DISP_SYNC(c, o) ((c) * 0x040 + (o)) #define NV50_DISP_CORE_NTFY NV50_DISP_SYNC(0 , 0x00) +#define NV50_DISP_CAPS_NTFY1 NV50_DISP_SYNC(0 , 0x01) +#define NV50_DISP_CAPS_NTFY4 NV50_DISP_SYNC(0 , 0x04) #define NV50_DISP_WNDW_SEM0(c) NV50_DISP_SYNC(1 + (c), 0x00) #define NV50_DISP_WNDW_SEM1(c) NV50_DISP_SYNC(1 + (c), 0x10) #define NV50_DISP_WNDW_NTFY(c) NV50_DISP_SYNC(1 + (c), 0x20) diff --git a/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h b/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h index 2e444bac701dd..6a463f308b64f 100644 --- a/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h +++ b/drivers/gpu/drm/nouveau/include/nvhw/class/cl507d.h @@ -32,7 +32,10 @@ #define NV_DISP_CORE_NOTIFIER_1_COMPLETION_0_DONE_TRUE 0x00000001 #define NV_DISP_CORE_NOTIFIER_1_COMPLETION_0_R0 15:1 #define NV_DISP_CORE_NOTIFIER_1_COMPLETION_0_TIMESTAMP 29:16

+#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1 0x00000001 +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1_DONE 0:0 +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1_DONE_FALSE 0x00000000 +#define NV_DISP_CORE_NOTIFIER_1_CAPABILITIES_1_DONE_TRUE 0x00000001

// class methods #define NV507D_UPDATE (0x00000080) diff --git a/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h b/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h index 34bc3eafac7d1..79aff6ff31385 100644 --- a/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h +++ b/drivers/gpu/drm/nouveau/include/nvhw/class/cl907d.h @@ -24,6 +24,10 @@ #ifndef _cl907d_h_ #define _cl907d_h_

+#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4 0x00000004 +#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4_DONE 0:0 +#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4_DONE_FALSE 0x00000000 +#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_4_DONE_TRUE 0x00000001 #define NV907D_CORE_NOTIFIER_3_CAPABILITIES_CAP_SOR0_20 0x00000014 #define NV907D_CORE_NOTIFIER_3_CAPABILITIES_CAP_SOR0_20_SINGLE_LVDS18 0:0

#define NV907D_CORE_NOTIFIER_3_CAPABILITIES_CAP_SOR0_20_SINGLE_LVDS18_FALSE 0x00000000

2.26.2

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Ben Skeggs
Lyude Paul