From 8ff4a4b98d1f82544460a9e9c04dbe9d0ac0322f Mon Sep 17 00:00:00 2001 From: Lijo Lazar Date: Sat, 5 Jul 2025 08:45:08 +0530 Subject: [PATCH 4355/5403] drm/amdgpu: Use cached partition mode, if valid For current partition mode queries, return the mode cached in partition manager whenever it's valid. Signed-off-by: Lijo Lazar Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c index c8fcafeb6864..c417f8689220 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c @@ -218,15 +218,27 @@ int amdgpu_xcp_restore_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr) return __amdgpu_xcp_switch_partition_mode(xcp_mgr, xcp_mgr->mode); } -int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags) +static bool __amdgpu_xcp_is_cached_mode_valid(struct amdgpu_xcp_mgr *xcp_mgr) { - int mode; + if (!xcp_mgr->funcs || !xcp_mgr->funcs->query_partition_mode) + return true; if (!amdgpu_sriov_vf(xcp_mgr->adev) && xcp_mgr->mode == AMDGPU_XCP_MODE_NONE) - return xcp_mgr->mode; + return true; - if (!xcp_mgr->funcs || !xcp_mgr->funcs->query_partition_mode) + if (xcp_mgr->mode != AMDGPU_XCP_MODE_NONE && + xcp_mgr->mode != AMDGPU_XCP_MODE_TRANS) + return true; + + return false; +} + +int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags) +{ + int mode; + + if (__amdgpu_xcp_is_cached_mode_valid(xcp_mgr)) return xcp_mgr->mode; if (!(flags & AMDGPU_XCP_FL_LOCKED)) -- 2.54.0