diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h index d878160ee6e5..a1be04eaafda 100644 --- a/drivers/gpu/drm/i915/intel_guc.h +++ b/drivers/gpu/drm/i915/intel_guc.h @@ -100,13 +100,23 @@ static inline void intel_guc_notify(struct intel_guc *guc) guc->notify(guc); } -/* +/* GuC addresses above GUC_GGTT_TOP also don't map through the GTT */ +#define GUC_GGTT_TOP 0xFEE00000 + +/** + * intel_guc_ggtt_offset() - Get and validate the GGTT offset of @vma + * @guc: intel_guc structure. + * @vma: i915 graphics virtual memory area. + * * GuC does not allow any gfx GGTT address that falls into range [0, WOPCM_TOP), * which is reserved for Boot ROM, SRAM and WOPCM. Currently this top address is * 512K. In order to exclude 0-512K address space from GGTT, all gfx objects * used by GuC is pinned with PIN_OFFSET_BIAS along with size of WOPCM. + * + * Return: GGTT offset that meets the GuC gfx address requirement. */ -static inline u32 guc_ggtt_offset(struct i915_vma *vma) +static inline u32 intel_guc_ggtt_offset(struct intel_guc *guc, + struct i915_vma *vma) { u32 offset = i915_ggtt_offset(vma); |