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Commit 27cd4461 authored by Neil Roberts's avatar Neil Roberts Committed by Daniel Vetter
Browse files

drm/i915: Add I915_PARAM_REVISION 



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: default avatarNeil Roberts <neil@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 10634189

drivers/gpu/drm/i915/i915_dma.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

include/uapi/drm/i915_drm.h

+1 −0
Original line number Diff line number Diff line
@@ -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;