[PATCH 2/3] drm/amdgpu: optimize logging deferred error info
YiPeng Chai
YiPeng.Chai at amd.com
Wed Jul 17 08:15:46 UTC 2024
1. Use pa_pfn as the radix-tree key index to log
deferred error info.
2. Use local array to store expanded bad pages.
Signed-off-by: YiPeng Chai <YiPeng.Chai at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c | 14 ++----
drivers/gpu/drm/amd/amdgpu/umc_v12_0.c | 65 ++++++++++++-------------
drivers/gpu/drm/amd/amdgpu/umc_v12_0.h | 5 ++
4 files changed, 40 insertions(+), 46 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
index dcf1f3dbb5c4..f607ff620015 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h
@@ -476,10 +476,10 @@ struct ras_err_pages {
};
struct ras_ecc_err {
- u64 hash_index;
uint64_t status;
uint64_t ipid;
uint64_t addr;
+ uint64_t pa_pfn;
struct ras_err_pages err_pages;
};
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
index 5d08c03fe543..2fc90799bf8d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c
@@ -523,18 +523,10 @@ int amdgpu_umc_logs_ecc_err(struct amdgpu_device *adev,
ecc_log = &con->umc_ecc_log;
mutex_lock(&ecc_log->lock);
- ret = radix_tree_insert(ecc_tree, ecc_err->hash_index, ecc_err);
- if (!ret) {
- struct ras_err_pages *err_pages = &ecc_err->err_pages;
- int i;
-
- /* Reserve memory */
- for (i = 0; i < err_pages->count; i++)
- amdgpu_ras_reserve_page(adev, err_pages->pfn[i]);
-
+ ret = radix_tree_insert(ecc_tree, ecc_err->pa_pfn, ecc_err);
+ if (!ret)
radix_tree_tag_set(ecc_tree,
- ecc_err->hash_index, UMC_ECC_NEW_DETECTED_TAG);
- }
+ ecc_err->pa_pfn, UMC_ECC_NEW_DETECTED_TAG);
mutex_unlock(&ecc_log->lock);
return ret;
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c
index eca5ac6a0532..f2235c9ead29 100644
--- a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c
@@ -524,9 +524,9 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev,
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
uint16_t hwid, mcatype;
uint64_t page_pfn[UMC_V12_0_BAD_PAGE_NUM_PER_CHANNEL];
- uint64_t err_addr, hash_val = 0, pa_addr = 0;
+ uint64_t err_addr, pa_addr = 0;
struct ras_ecc_err *ecc_err;
- int count, ret;
+ int count, ret, i;
hwid = REG_GET_FIELD(ipid, MCMP1_IPIDT0, HardwareID);
mcatype = REG_GET_FIELD(ipid, MCMP1_IPIDT0, McaType);
@@ -559,39 +559,18 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev,
if (ret)
return ret;
- memset(page_pfn, 0, sizeof(page_pfn));
- count = umc_v12_0_expand_addr_to_bad_pages(adev,
- pa_addr,
- page_pfn, ARRAY_SIZE(page_pfn));
- if (count <= 0) {
- dev_warn(adev->dev, "Fail to convert error address! count:%d\n", count);
- return 0;
- }
-
- ret = amdgpu_umc_build_pages_hash(adev,
- page_pfn, count, &hash_val);
- if (ret) {
- dev_err(adev->dev, "Fail to build error pages hash\n");
- return ret;
- }
-
ecc_err = kzalloc(sizeof(*ecc_err), GFP_KERNEL);
if (!ecc_err)
return -ENOMEM;
- ecc_err->err_pages.pfn = kcalloc(count, sizeof(*ecc_err->err_pages.pfn), GFP_KERNEL);
- if (!ecc_err->err_pages.pfn) {
- kfree(ecc_err);
- return -ENOMEM;
- }
-
- memcpy(ecc_err->err_pages.pfn, page_pfn, count * sizeof(*ecc_err->err_pages.pfn));
- ecc_err->err_pages.count = count;
-
- ecc_err->hash_index = hash_val;
ecc_err->status = status;
ecc_err->ipid = ipid;
ecc_err->addr = addr;
+ ecc_err->pa_pfn = UMC_V12_ADDR_MASK_BAD_COLS(pa_addr) >> AMDGPU_GPU_PAGE_SHIFT;
+
+ /* If converted pa_pfn is 0, use pa xor pfn. */
+ if (!ecc_err->pa_pfn)
+ ecc_err->pa_pfn = BIT_ULL(UMC_V12_0_PA_R13_BIT) >> AMDGPU_GPU_PAGE_SHIFT;
ret = amdgpu_umc_logs_ecc_err(adev, &con->umc_ecc_log.de_page_tree, ecc_err);
if (ret) {
@@ -600,13 +579,25 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev,
else
dev_err(adev->dev, "Fail to log ecc error! ret:%d\n", ret);
- kfree(ecc_err->err_pages.pfn);
kfree(ecc_err);
return ret;
}
con->umc_ecc_log.de_queried_count++;
+ memset(page_pfn, 0, sizeof(page_pfn));
+ count = umc_v12_0_expand_addr_to_bad_pages(adev,
+ pa_addr,
+ page_pfn, ARRAY_SIZE(page_pfn));
+ if (count <= 0) {
+ dev_warn(adev->dev, "Fail to convert error address! count:%d\n", count);
+ return 0;
+ }
+
+ /* Reserve memory */
+ for (i = 0; i < count; i++)
+ amdgpu_ras_reserve_page(adev, page_pfn[i]);
+
/* The problem case is as follows:
* 1. GPU A triggers a gpu ras reset, and GPU A drives
* GPU B to also perform a gpu ras reset.
@@ -631,16 +622,21 @@ 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;
+ uint64_t page_pfn[UMC_V12_0_BAD_PAGE_NUM_PER_CHANNEL];
+ int ret, i, count;
if (!err_data || !ecc_err)
return -EINVAL;
- for (i = 0; i < ecc_err->err_pages.count; i++) {
+ memset(page_pfn, 0, sizeof(page_pfn));
+ count = umc_v12_0_expand_addr_to_bad_pages(adev,
+ ecc_err->pa_pfn << AMDGPU_GPU_PAGE_SHIFT,
+ page_pfn, ARRAY_SIZE(page_pfn));
+
+ for (i = 0; i < count; i++) {
ret = amdgpu_umc_fill_error_record(err_data,
ecc_err->addr,
- ecc_err->err_pages.pfn[i] << AMDGPU_GPU_PAGE_SHIFT,
+ page_pfn[i] << AMDGPU_GPU_PAGE_SHIFT,
MCA_IPID_2_UMC_CH(ecc_err->ipid),
MCA_IPID_2_UMC_INST(ecc_err->ipid));
if (ret)
@@ -674,7 +670,8 @@ static void umc_v12_0_query_ras_ecc_err_addr(struct amdgpu_device *adev,
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);
+ radix_tree_tag_clear(ecc_tree,
+ entries[i]->pa_pfn, UMC_ECC_NEW_DETECTED_TAG);
}
mutex_unlock(&con->umc_ecc_log.lock);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.h b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.h
index b4974793850b..be5598d76c1d 100644
--- a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.h
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.h
@@ -81,6 +81,11 @@
(((REG_GET_FIELD(ipid, MCMP1_IPIDT0, InstanceIdLo) & 0x1) << 2) | \
(REG_GET_FIELD(ipid, MCMP1_IPIDT0, InstanceIdHi) & 0x03))
+#define UMC_V12_ADDR_MASK_BAD_COLS(addr) \
+ ((addr) & ~((0x3ULL << UMC_V12_0_PA_C2_BIT) | \
+ (0x1ULL << UMC_V12_0_PA_C4_BIT) | \
+ (0x1ULL << UMC_V12_0_PA_R13_BIT)))
+
bool umc_v12_0_is_deferred_error(struct amdgpu_device *adev, uint64_t mc_umc_status);
bool umc_v12_0_is_uncorrectable_error(struct amdgpu_device *adev, uint64_t mc_umc_status);
bool umc_v12_0_is_correctable_error(struct amdgpu_device *adev, uint64_t mc_umc_status);
--
2.34.1
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