drm/amdgpu: add MCA smu cache support

v1:
because SMU CE valid mca bank will be cleared after reading,
this patch adds mca cache at the driver level to ensure that the mca bank is not lost.

v2:
refine amdgpu_mca_init/fini/reset() function name.

v3:
add mca_cache.lock support
only add CE bank to mca bank cache.

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 14 insertions, 5 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.h
index 4d0a0f91c375..9b97cfa28e05 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mca.h
@@ -77,11 +77,22 @@ struct amdgpu_mca_ras {
 	struct amdgpu_mca_ras_block *ras;
 };
 
+struct mca_bank_set {
+	int nr_entries;
+	struct list_head list;
+};
+
+struct mca_bank_cache {
+	struct mca_bank_set mca_set;
+	struct mutex lock;
+};
+
 struct amdgpu_mca {
 	struct amdgpu_mca_ras mp0;
 	struct amdgpu_mca_ras mp1;
 	struct amdgpu_mca_ras mpio;
 	const struct amdgpu_mca_smu_funcs *mca_funcs;
+	struct mca_bank_cache mca_caches[AMDGPU_MCA_ERROR_TYPE_DE];
 };
 
 enum mca_reg_idx {
@@ -113,11 +124,6 @@ struct mca_bank_node {
 	struct list_head node;
 };
 
-struct mca_bank_set {
-	int nr_entries;
-	struct list_head list;
-};
-
 struct amdgpu_mca_smu_funcs {
 	int max_ue_count;
 	int max_ce_count;
@@ -149,6 +155,9 @@ int amdgpu_mca_mp1_ras_sw_init(struct amdgpu_device *adev);
 int amdgpu_mca_mpio_ras_sw_init(struct amdgpu_device *adev);
 
 void amdgpu_mca_smu_init_funcs(struct amdgpu_device *adev, const struct amdgpu_mca_smu_funcs *mca_funcs);
+int amdgpu_mca_init(struct amdgpu_device *adev);
+void amdgpu_mca_fini(struct amdgpu_device *adev);
+int amdgpu_mca_reset(struct amdgpu_device *adev);
 int amdgpu_mca_smu_set_debug_mode(struct amdgpu_device *adev, bool enable);
 int amdgpu_mca_smu_get_mca_set_error_count(struct amdgpu_device *adev, enum amdgpu_ras_block blk,
 					   enum amdgpu_mca_error_type type, uint32_t *total);