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authorAravind Iddamsetty <aravind.iddamsetty@intel.com>2022-11-08 05:05:58 +0300
committerDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>2022-11-14 21:11:47 +0300
commitee71434eeb9c729c7e09911e1b69fc5baf498222 (patch)
treecfbe919e88052242b0357a0c2fa5cbfa61829a8e /Documentation/gpu
parent00b4c0ef43ad17ef5e0394060361ef2bf10e7a70 (diff)
downloadlinux-ee71434eeb9c729c7e09911e1b69fc5baf498222.tar.xz
drm/i915/mtl: Handle wopcm per-GT and limit calculations.
With MTL standalone media architecture the wopcm layout has changed, with separate partitioning in WOPCM for the root GT GuC and the media GT GuC. The size of WOPCM is 4MB with the lower 2MB reserved for the media GT and the upper 2MB for the root GT. Given that MTL has GuC deprivilege, the WOPCM registers are pre-locked by the bios. Therefore, we can skip all the math for the partitioning and just limit ourselves to sanity-checking the values. v2: fix makefile file ordering (Jani) v3: drop XELPM_SAMEDIA_WOPCM_SIZE, check huc instead of VDBOX (John) v4: further clarify commit message, remove blank line (John) Signed-off-by: Aravind Iddamsetty <aravind.iddamsetty@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: John Harrison <john.c.harrison@intel.com> Cc: Alan Previn <alan.previn.teres.alexis@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221108020600.3575467-5-daniele.ceraolospurio@intel.com
Diffstat (limited to 'Documentation/gpu')
-rw-r--r--Documentation/gpu/i915.rst2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 4e59db1cfb00..60ea21734902 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -494,7 +494,7 @@ WOPCM
WOPCM Layout
~~~~~~~~~~~~
-.. kernel-doc:: drivers/gpu/drm/i915/intel_wopcm.c
+.. kernel-doc:: drivers/gpu/drm/i915/gt/intel_wopcm.c
:doc: WOPCM Layout
GuC