[PATCH 10/15] drm/amdgpu: retire bad pages for umc v12_0

[YiPeng Chai]

Retire bad pages for umc v12_0.

Signed-off-by: YiPeng Chai <YiPeng.Chai at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/umc_v12_0.c | 57 +++++++++++++++++++++++++-
 1 file changed, 55 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c
index 6c2b61ef5b57..bd917eb6ea24 100644
--- a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c
@@ -28,6 +28,8 @@
 #include "umc/umc_12_0_0_sh_mask.h"
 #include "mp/mp_13_0_6_sh_mask.h"
 
+#define MAX_ECC_NUM_PER_RETIREMENT  16
+
 static inline uint64_t get_umc_v12_0_reg_offset(struct amdgpu_device *adev,
 					    uint32_t node_inst,
 					    uint32_t umc_inst,
@@ -633,6 +635,58 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev,
 	return 0;
 }
 
+static int umc_v12_0_fill_error_record(struct amdgpu_device *adev,
+				struct ras_ecc_err *ecc_err, void *ras_error_status)
+{
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+	uint32_t i = 0;
+	int ret = 0;
+
+	if (!err_data || !ecc_err)
+		return -EINVAL;
+
+	for (i = 0; i < ecc_err->err_pages.count; i++) {
+		ret = amdgpu_umc_fill_error_record(err_data,
+				ecc_err->addr,
+				ecc_err->err_pages.pfn[i] << AMDGPU_GPU_PAGE_SHIFT,
+				MCA_IPID_2_UMC_CH(ecc_err->ipid),
+				MCA_IPID_2_UMC_INST(ecc_err->ipid));
+		if (ret)
+			break;
+	}
+
+	err_data->de_count++;
+
+	return ret;
+}
+
+static void umc_v12_0_query_ras_ecc_err_addr(struct amdgpu_device *adev,
+					void *ras_error_status)
+{
+	struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+	struct ras_ecc_err *entries[MAX_ECC_NUM_PER_RETIREMENT];
+	struct radix_tree_root *ecc_tree;
+	int new_detected, ret, i;
+
+	ecc_tree = &con->umc_ecc_log.de_page_tree;
+
+	mutex_lock(&con->umc_ecc_log.lock);
+	new_detected = radix_tree_gang_lookup_tag(ecc_tree, (void **)entries,
+			0, ARRAY_SIZE(entries), UMC_ECC_NEW_DETECTED_TAG);
+	for (i = 0; i < new_detected; i++) {
+		if (!entries[i])
+			continue;
+
+		ret = umc_v12_0_fill_error_record(adev, entries[i], ras_error_status);
+		if (ret) {
+			dev_err(adev->dev, "Fail to fill umc error record, ret:%d\n", ret);
+			break;
+		}
+		radix_tree_tag_clear(ecc_tree, entries[i]->hash_index, UMC_ECC_NEW_DETECTED_TAG);
+	}
+	mutex_unlock(&con->umc_ecc_log.lock);
+}
+
 struct amdgpu_umc_ras umc_v12_0_ras = {
 	.ras_block = {
 		.hw_ops = &umc_v12_0_ras_hw_ops,
@@ -640,8 +694,7 @@ struct amdgpu_umc_ras umc_v12_0_ras = {
 	},
 	.err_cnt_init = umc_v12_0_err_cnt_init,
 	.query_ras_poison_mode = umc_v12_0_query_ras_poison_mode,
-	.ecc_info_query_ras_error_count = umc_v12_0_ecc_info_query_ras_error_count,
-	.ecc_info_query_ras_error_address = umc_v12_0_ecc_info_query_ras_error_address,
+	.ecc_info_query_ras_error_address = umc_v12_0_query_ras_ecc_err_addr,
 	.check_ecc_err_status = umc_v12_0_check_ecc_err_status,
 	.update_ecc_status = umc_v12_0_update_ecc_status,
 };
-- 
2.34.1