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| author | Jike Song | 2017-01-06 08:16:23 +0100 |
|---|---|---|
| committer | Zhenyu Wang | 2017-01-09 04:11:32 +0100 |
| commit | 03551e971f6e52c8dedd5741bf48631e65675759 (patch) | |
| tree | cdc0bceeb04ef78d64ea00675977e511e5b85033 /drivers/gpu/drm/i915/gvt/reg.h | |
| parent | drm/i915/gvt: destroy the allocated idr on vgpu creating failures (diff) | |
| download | kernel-qcow2-linux-03551e971f6e52c8dedd5741bf48631e65675759.tar.gz kernel-qcow2-linux-03551e971f6e52c8dedd5741bf48631e65675759.tar.xz kernel-qcow2-linux-03551e971f6e52c8dedd5741bf48631e65675759.zip | |
drm/i915/gvt: cleanup opregion memory allocation code
According to the spec, ACPI OpRegion must be placed at a physical address
below 4G. That is, for a vGPU it must be associated with a GPA below 4G,
but on host side, it doesn't matter where the backing pages actually are.
So when allocating pages from host, the GFP_DMA32 flag is unnecessary.
Also the allocation is from a sleepable context, so GFP_ATOMIC is also
unnecessary.
This patch also removes INTEL_GVT_OPREGION_PORDER and use get_order()
instead.
Signed-off-by: Jike Song <jike.song@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/reg.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gvt/reg.h b/drivers/gpu/drm/i915/gvt/reg.h index 0dfe789d8f02..fbd023a16f18 100644 --- a/drivers/gpu/drm/i915/gvt/reg.h +++ b/drivers/gpu/drm/i915/gvt/reg.h @@ -50,8 +50,7 @@ #define INTEL_GVT_OPREGION_PARM 0x204 #define INTEL_GVT_OPREGION_PAGES 2 -#define INTEL_GVT_OPREGION_PORDER 1 -#define INTEL_GVT_OPREGION_SIZE (2 * 4096) +#define INTEL_GVT_OPREGION_SIZE (INTEL_GVT_OPREGION_PAGES * PAGE_SIZE) #define VGT_SPRSTRIDE(pipe) _PIPE(pipe, _SPRA_STRIDE, _PLANE_STRIDE_2_B) |