diff options
| -rw-r--r-- | include/drm/i915_drm.h | 1 | ||||
| -rw-r--r-- | intel/intel_bufmgr_gem.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index de724964..af3ce174 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -287,6 +287,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_EXEC_CONSTANTS 14 #define I915_PARAM_HAS_RELAXED_DELTA 15 #define I915_PARAM_HAS_GEN7_SOL_RESET 16 +#define I915_PARAM_HAS_LLC 17 typedef struct drm_i915_getparam { int param; diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c index 26e3a5ce..187e8ec9 100644 --- a/intel/intel_bufmgr_gem.c +++ b/intel/intel_bufmgr_gem.c @@ -107,6 +107,7 @@ typedef struct _drm_intel_bufmgr_gem { unsigned int has_bsd : 1; unsigned int has_blt : 1; unsigned int has_relaxed_fencing : 1; + unsigned int has_llc : 1; unsigned int bo_reuse : 1; bool fenced_relocs; } drm_intel_bufmgr_gem; @@ -2358,6 +2359,17 @@ drm_intel_bufmgr_gem_init(int fd, int batch_size) ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp); bufmgr_gem->has_relaxed_fencing = ret == 0; + gp.param = I915_PARAM_HAS_LLC; + ret = drmIoctl(bufmgr_gem->fd, DRM_IOCTL_I915_GETPARAM, &gp); + if (ret == -EINVAL) { + /* Kernel does not supports HAS_LLC query, fallback to GPU + * generation detection and assume that we have LLC on GEN6/7 + */ + bufmgr_gem->has_llc = (IS_GEN6(bufmgr_gem->pci_device) | + IS_GEN7(bufmgr_gem->pci_device)); + } else + bufmgr_gem->has_llc = ret == 0; + if (bufmgr_gem->gen < 4) { gp.param = I915_PARAM_NUM_FENCES_AVAIL; gp.value = &bufmgr_gem->available_fences; |