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Commit 888530b5 authored by Zhenyu Wang's avatar Zhenyu Wang
Browse files

drm/i915/gvt: adjust high memory size for default vGPU type 



Previous high mem size initialized for vGPU type was too small which caused
failure for some VMs. This trys to take minimal value of 384MB for each VM and
enlarge default high mem size to make guest driver happy.

Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 901a14b7

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

+2 −2
Original line number Diff line number Diff line
@@ -177,7 +177,7 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt) 
		if (low_avail / min_low == 0)

			break;

		gvt->types[i].low_gm_size = min_low;

		gvt->types[i].high_gm_size = 3 * gvt->types[i].low_gm_size;

		gvt->types[i].high_gm_size = max((min_low<<3), MB_TO_BYTES(384U));

		gvt->types[i].fence = 4;

		gvt->types[i].max_instance = low_avail / min_low;

		gvt->types[i].avail_instance = gvt->types[i].max_instance;
@@ -217,7 +217,7 @@ static void intel_gvt_update_vgpu_types(struct intel_gvt *gvt) 
	 */

	low_gm_avail = MB_TO_BYTES(256) - HOST_LOW_GM_SIZE -

		gvt->gm.vgpu_allocated_low_gm_size;

	high_gm_avail = MB_TO_BYTES(256) * 3 - HOST_HIGH_GM_SIZE -

	high_gm_avail = MB_TO_BYTES(256) * 8UL - HOST_HIGH_GM_SIZE -

		gvt->gm.vgpu_allocated_high_gm_size;

	fence_avail = gvt_fence_sz(gvt) - HOST_FENCE -

		gvt->fence.vgpu_allocated_fence_num;