Commit 9192c761 authored by Likun Gao's avatar Likun Gao Committed by Alex Deucher
Browse files

drm/amdgpu: force to use legacy inv in mmhub 



MMHUB v4.1.0 only support fixed cache mode, so
only use legacy invalidation accordingly.

Signed-off-by: default avatarLikun Gao <Likun.Gao@amd.com>
Reviewed-by: default avatarFrank Min <Frank.Min@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f59902ff

drivers/gpu/drm/amd/amdgpu/mmhub_v4_1_0.c

+2 −1
Original line number Diff line number Diff line
@@ -80,7 +80,8 @@ static uint32_t mmhub_v4_1_0_get_invalidate_req(unsigned int vmid, 
	/* invalidate using legacy mode on vmid*/

	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,

			    PER_VMID_INVALIDATE_REQ, 1 << vmid);

	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);

	/* Only use legacy inv on mmhub side */

	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, 0);

	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);

	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);

	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);