From: Tao Zhou <tao.zhou1@amd.com>
Date: Thu, 24 Oct 2024 07:34:27 +0000 (+0800)
Subject: drm/amdgpu: support to find RAS bad pages via old TA
X-Git-Tag: v6.14-rc1~174^2~14^2~181
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07dd49e1fc42fcb67a1786c2b2f71e0dd0079935;p=thirdparty%2Fkernel%2Flinux.git

drm/amdgpu: support to find RAS bad pages via old TA

Old version of RAS TA doesn't support to convert MCA address stored on
eeprom to physical address (PA), support to find all bad pages in one
memory row by PA with old RAS TA. This approach is only suitable for
nps1 mode.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 882a33e134d8e..d41a0664aa272 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -2765,9 +2765,10 @@ int amdgpu_ras_add_bad_pages(struct amdgpu_device *adev,
 	struct ras_err_handler_data *data;
 	struct ras_err_data err_data;
 	struct eeprom_table_record *err_rec;
+	enum amdgpu_memory_partition nps = AMDGPU_NPS1_PARTITION_MODE;
 	int ret = 0;
 	uint32_t i, j, loop_cnt = 1;
-	bool is_mca_add = true;
+	bool is_mca_add = true, find_pages_per_pa = false;
 
 	if (!con || !con->eh_data || !bps || pages <= 0)
 		return 0;
@@ -2797,12 +2798,33 @@ int amdgpu_ras_add_bad_pages(struct amdgpu_device *adev,
 		}
 
 		loop_cnt = adev->umc.retire_unit;
+		if (adev->gmc.gmc_funcs->query_mem_partition_mode)
+			nps = adev->gmc.gmc_funcs->query_mem_partition_mode(adev);
 	}
 
 	for (i = 0; i < pages; i++) {
 		if (is_mca_add) {
-			if (amdgpu_ras_mca2pa(adev, &bps[i], &err_data))
-				goto free;
+			if (!find_pages_per_pa) {
+				if (amdgpu_ras_mca2pa(adev, &bps[i], &err_data)) {
+					if (!i && nps == AMDGPU_NPS1_PARTITION_MODE) {
+						/* may use old RAS TA, use PA to find pages in
+						 * one row
+						 */
+						if (amdgpu_umc_pages_in_a_row(adev, &err_data,
+								bps[i].retired_page << AMDGPU_GPU_PAGE_SHIFT))
+							goto free;
+						else
+							find_pages_per_pa = true;
+					} else {
+						/* unsupported cases */
+						goto free;
+					}
+				}
+			} else {
+				if (amdgpu_umc_pages_in_a_row(adev, &err_data,
+						bps[i].retired_page << AMDGPU_GPU_PAGE_SHIFT))
+					goto free;
+			}
 
 			err_rec = err_data.err_addr;
 		} else {