On Wed, Mar 04, 2015 at 02:41:16PM +0000, Neil Roberts wrote: > Adds a parameter which can be used with DRM_I915_GETPARAM to query the > GPU revision. The intention is to use this in Mesa to implement the > WaDisableSIMD16On3SrcInstr workaround on Skylake but only for > revision 2. > > Signed-off-by: Neil Roberts <neil@xxxxxxxxxxxxxxx> Just listened to Damien explain this all and pulled it right into dinq. Cheers, Daniel > --- > The corresponding Mesa patches are here: > > http://lists.freedesktop.org/archives/mesa-dev/2015-March/078534.html > > and the libdrm patch is here: > > http://lists.freedesktop.org/archives/dri-devel/2015-March/078645.html > > drivers/gpu/drm/i915/i915_dma.c | 3 +++ > include/uapi/drm/i915_drm.h | 1 + > 2 files changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c > index 0312879..36dd1df 100644 > --- a/drivers/gpu/drm/i915/i915_dma.c > +++ b/drivers/gpu/drm/i915/i915_dma.c > @@ -68,6 +68,9 @@ static int i915_getparam(struct drm_device *dev, void *data, > case I915_PARAM_CHIPSET_ID: > value = dev->pdev->device; > break; > + case I915_PARAM_REVISION: > + value = dev->pdev->revision; > + break; > case I915_PARAM_HAS_GEM: > value = 1; > break; > diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h > index 6eed16b..b768f3b 100644 > --- a/include/uapi/drm/i915_drm.h > +++ b/include/uapi/drm/i915_drm.h > @@ -347,6 +347,7 @@ typedef struct drm_i915_irq_wait { > #define I915_PARAM_HAS_COHERENT_PHYS_GTT 29 > #define I915_PARAM_MMAP_VERSION 30 > #define I915_PARAM_HAS_BSD2 31 > +#define I915_PARAM_REVISION 32 > > typedef struct drm_i915_getparam { > int param; > -- > 1.9.3 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
