drm/i915/gvt: Add in context mmio 0x20D8 to gen9 mmio list

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Depends on GEN family and I915_PARAM_HAS_CONTEXT_ISOLATION, Mesa driver
will decide whether constant buffer 0 address is relative or absolute,
and load GPU initial state by lri to context mmio INSTPM (GEN8)
or 0x20D8 (>=GEN9).
Mesa Commit fa8a764b62
("i965: Use absolute addressing for constant buffer 0 on Kernel 4.16+.")

INSTPM is already added to gen8_engine_mmio_list, but 0x20D8 is missed
in gen9_engine_mmio_list. From GVT point of view, different guest could
have different context so should switch those mmio accordingly.

v2: Update fixes commit ID.

Fixes: 1786571393 ("drm/i915/gvt: vGPU context switch")
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

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Colin Xu 2019-02-22 14:13:42 +08:00 • committed by Zhenyu Wang

parent 13bcb80b7e

commit 1e8b15a198

1 changed files with 1 additions and 0 deletions

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drivers/gpu/drm/i915/gvt/mmio_context.c

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