diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_guc_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uc.h | 1 |
3 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 6af9311f72f5..bc2b4421cbd6 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -3176,6 +3176,16 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv) if (ret) return ret; + /* Trim the GGTT to fit the GuC mappable upper range (when enabled). + * This is easier than doing range restriction on the fly, as we + * currently don't have any bits spare to pass in this upper + * restriction! + */ + if (HAS_GUC(dev_priv) && i915.enable_guc_loading) { + ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP); + ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total); + } + if ((ggtt->base.total - 1) >> 32) { DRM_ERROR("We never expected a Global GTT with more than 32bits" " of address space! Found %lldM!\n", diff --git a/drivers/gpu/drm/i915/i915_guc_reg.h b/drivers/gpu/drm/i915/i915_guc_reg.h index 5e638fc37208..6a0adafe0523 100644 --- a/drivers/gpu/drm/i915/i915_guc_reg.h +++ b/drivers/gpu/drm/i915/i915_guc_reg.h @@ -73,6 +73,9 @@ #define GUC_WOPCM_TOP (0x80 << 12) /* 512KB */ #define BXT_GUC_WOPCM_RC6_RESERVED (0x10 << 12) /* 64KB */ +/* GuC addresses above GUC_GGTT_TOP also don't map through the GTT */ +#define GUC_GGTT_TOP 0xFEE00000 + #define GEN8_GT_PM_CONFIG _MMIO(0x138140) #define GEN9LP_GT_PM_CONFIG _MMIO(0x138140) #define GEN9_GT_PM_CONFIG _MMIO(0x13816c) diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 3b1e39b0f3ab..9490a8e049c3 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -203,6 +203,7 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma) { u32 offset = i915_ggtt_offset(vma); GEM_BUG_ON(offset < GUC_WOPCM_TOP); + GEM_BUG_ON(range_overflows_t(u64, offset, vma->size, GUC_GGTT_TOP)); return offset; } |