|
commit 6033637a040eeb8ae0f31bdbca8d9c988582f99d Author: GuoYejun <yejun.guo@xxxxxxxxx> Date: Fri Sep 27 16:26:18 2013 +0800 drm/i915: Export the eLLC size from KMD via IOCTL The usermode driver needs the eLLC information in order to make decisions which can result in significant performance improvements. Since all userspace drivers require this same information, it makes sense to store it in one globally accessible place, the kernel. diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index dd76d93..4ce36f4 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1003,6 +1003,9 @@ static int i915_getparam(struct drm_device *dev, void *data, case I915_PARAM_HAS_EXEC_HANDLE_LUT: value = 1; break; + case I915_PARAM_ELLC_SIZE: + value = dev_priv->ellc_size; + break; default: DRM_DEBUG("Unknown parameter %d\n", param->param); return -EINVAL; diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 3a4e97b..a0d4e00 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -335,6 +335,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_EXEC_NO_RELOC 25 #define I915_PARAM_HAS_EXEC_HANDLE_LUT 26 #define I915_PARAM_HAS_WT 27 +#define I915_PARAM_ELLC_SIZE 28 typedef struct drm_i915_getparam { int param; Yejun graphics software engineer Tel: (+86) 021-6116-6181 |
_______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
