From 0d5f5858be062e70209e109f42d715f3337ef087 Mon Sep 17 00:00:00 2001
From: Tao Zhou <tao.zhou1@amd.com>
Date: Wed, 19 Jan 2022 17:00:09 +0800
Subject: drm/amdgpu: update algorithm of umc address conversion
Git-commit: e63fa4dcea2f7afcbf8f2d013dfae23a61a273d8
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
On ALDEBARAN, we need to traverse all column bits higher than
BIT11(C4C3C2) in a row, the shift of R14 bit should be also taken
into account. Retire all pages we find.
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>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/umc_v6_7.c | 41 +++++++++++++++++++++------
drivers/gpu/drm/amd/amdgpu/umc_v6_7.h | 4 +++
2 files changed, 37 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
index 300dee9ec6b4..1ecba7b5df1c 100644
--- a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
@@ -119,7 +119,7 @@ static void umc_v6_7_ecc_info_query_error_address(struct amdgpu_device *adev,
uint32_t ch_inst,
uint32_t umc_inst)
{
- uint64_t mc_umc_status, err_addr, retired_page;
+ uint64_t mc_umc_status, err_addr, soc_pa, retired_page, column;
uint32_t channel_index;
uint32_t eccinfo_table_idx;
struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
@@ -145,15 +145,27 @@ static void umc_v6_7_ecc_info_query_error_address(struct amdgpu_device *adev,
err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
/* translate umc channel address to soc pa, 3 parts are included */
- retired_page = ADDR_OF_8KB_BLOCK(err_addr) |
+ soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
ADDR_OF_256B_BLOCK(channel_index) |
OFFSET_IN_256B_BLOCK(err_addr);
+ /* clear [C4 C3 C2] in soc physical address */
+ soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
/* we only save ue error information currently, ce is skipped */
if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC)
- == 1)
- amdgpu_umc_fill_error_record(err_data, err_addr,
+ == 1) {
+ /* loop for all possibilities of [C4 C3 C2] */
+ for (column = 0; column < UMC_V6_7_NA_MAP_PA_NUM; column++) {
+ retired_page = soc_pa | (column << UMC_V6_7_PA_C2_BIT);
+ amdgpu_umc_fill_error_record(err_data, err_addr,
retired_page, channel_index, umc_inst);
+
+ /* shift R14 bit */
+ retired_page ^= (0x1ULL << UMC_V6_7_PA_R14_BIT);
+ amdgpu_umc_fill_error_record(err_data, err_addr,
+ retired_page, channel_index, umc_inst);
+ }
+ }
}
}
@@ -332,8 +344,9 @@ static void umc_v6_7_query_error_address(struct amdgpu_device *adev,
uint32_t umc_inst)
{
uint32_t mc_umc_status_addr;
- uint64_t mc_umc_status, err_addr, retired_page, mc_umc_addrt0;
uint32_t channel_index;
+ uint64_t mc_umc_status, mc_umc_addrt0;
+ uint64_t err_addr, soc_pa, retired_page, column;
mc_umc_status_addr =
SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_STATUST0);
@@ -363,15 +376,27 @@ static void umc_v6_7_query_error_address(struct amdgpu_device *adev,
err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
/* translate umc channel address to soc pa, 3 parts are included */
- retired_page = ADDR_OF_8KB_BLOCK(err_addr) |
+ soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
ADDR_OF_256B_BLOCK(channel_index) |
OFFSET_IN_256B_BLOCK(err_addr);
+ /* clear [C4 C3 C2] in soc physical address */
+ soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
/* we only save ue error information currently, ce is skipped */
if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC)
- == 1)
- amdgpu_umc_fill_error_record(err_data, err_addr,
+ == 1) {
+ /* loop for all possibilities of [C4 C3 C2] */
+ for (column = 0; column < UMC_V6_7_NA_MAP_PA_NUM; column++) {
+ retired_page = soc_pa | (column << UMC_V6_7_PA_C2_BIT);
+ amdgpu_umc_fill_error_record(err_data, err_addr,
+ retired_page, channel_index, umc_inst);
+
+ /* shift R14 bit */
+ retired_page ^= (0x1ULL << UMC_V6_7_PA_R14_BIT);
+ amdgpu_umc_fill_error_record(err_data, err_addr,
retired_page, channel_index, umc_inst);
+ }
+ }
}
/* clear umc status */
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.h b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.h
index 9adebcf98582..b67677867b45 100644
--- a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.h
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.h
@@ -45,6 +45,10 @@
#define UMC_V6_7_NA_MAP_PA_NUM 8
/* R14 bit shift should be considered, double the number */
#define UMC_V6_7_BAD_PAGE_NUM_PER_CHANNEL (UMC_V6_7_NA_MAP_PA_NUM * 2)
+/* The C2 bit in SOC physical address */
+#define UMC_V6_7_PA_C2_BIT 17
+/* The R14 bit in SOC physical address */
+#define UMC_V6_7_PA_R14_BIT 34
/* UMC regiser per channel offset */
#define UMC_V6_7_PER_CHANNEL_OFFSET 0x400
extern struct amdgpu_umc_ras umc_v6_7_ras;
--
2.38.1