From: Ce Sun Date: Wed, 20 Aug 2025 09:18:57 +0000 (+0800) Subject: drm/amdgpu: Correct the loss of aca bank reg info X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d8442bcad0764c5613e9f8b2356f3e0a48327e20;p=users%2Fhch%2Fmisc.git drm/amdgpu: Correct the loss of aca bank reg info By polling, poll ACA bank count to ensure that valid ACA bank reg info can be obtained v2: add corresponding delay before send msg to SMU to query mca bank info (Stanley) v3: the loop cannot exit. (Thomas) v4: remove amdgpu_aca_clear_bank_count. (Kevin) v5: continuously inject ce. If a creation interruption occurs at this time, bank reg info will be lost. (Thomas) v5: each cycle is delayed by 100ms. (Tao) Signed-off-by: Ce Sun Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index ff2b522d86c6..21678b3d620c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -122,7 +122,7 @@ const char *get_ras_block_str(struct ras_common_if *ras_block) /* typical ECC bad page rate is 1 bad page per 100MB VRAM */ #define RAS_BAD_PAGE_COVER (100 * 1024 * 1024ULL) -#define MAX_UMC_POISON_POLLING_TIME_ASYNC 300 //ms +#define MAX_UMC_POISON_POLLING_TIME_ASYNC 10 #define AMDGPU_RAS_RETIRE_PAGE_INTERVAL 100 //ms @@ -3317,7 +3317,7 @@ static void amdgpu_ras_ecc_log_init(struct ras_ecc_log_info *ecc_log) INIT_RADIX_TREE(&ecc_log->de_page_tree, GFP_KERNEL); ecc_log->de_queried_count = 0; - ecc_log->prev_de_queried_count = 0; + ecc_log->consumption_q_count = 0; } static void amdgpu_ras_ecc_log_fini(struct ras_ecc_log_info *ecc_log) @@ -3337,7 +3337,7 @@ static void amdgpu_ras_ecc_log_fini(struct ras_ecc_log_info *ecc_log) mutex_destroy(&ecc_log->lock); ecc_log->de_queried_count = 0; - ecc_log->prev_de_queried_count = 0; + ecc_log->consumption_q_count = 0; } static bool amdgpu_ras_schedule_retirement_dwork(struct amdgpu_ras *con, @@ -3387,47 +3387,34 @@ static int amdgpu_ras_poison_creation_handler(struct amdgpu_device *adev, int ret = 0; struct ras_ecc_log_info *ecc_log; struct ras_query_if info; - uint32_t timeout = 0; + u32 timeout = MAX_UMC_POISON_POLLING_TIME_ASYNC; struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); - uint64_t de_queried_count; - uint32_t new_detect_count, total_detect_count; - uint32_t need_query_count = poison_creation_count; + u64 de_queried_count; + u64 consumption_q_count; enum ras_event_type type = RAS_EVENT_TYPE_POISON_CREATION; memset(&info, 0, sizeof(info)); info.head.block = AMDGPU_RAS_BLOCK__UMC; ecc_log = &ras->umc_ecc_log; - total_detect_count = 0; + ecc_log->de_queried_count = 0; + ecc_log->consumption_q_count = 0; + do { ret = amdgpu_ras_query_error_status_with_event(adev, &info, type); if (ret) return ret; de_queried_count = ecc_log->de_queried_count; - if (de_queried_count > ecc_log->prev_de_queried_count) { - new_detect_count = de_queried_count - ecc_log->prev_de_queried_count; - ecc_log->prev_de_queried_count = de_queried_count; - timeout = 0; - } else { - new_detect_count = 0; - } + consumption_q_count = ecc_log->consumption_q_count; - if (new_detect_count) { - total_detect_count += new_detect_count; - } else { - if (!timeout && need_query_count) - timeout = MAX_UMC_POISON_POLLING_TIME_ASYNC; + if (de_queried_count && consumption_q_count) + break; - if (timeout) { - if (!--timeout) - break; - msleep(1); - } - } - } while (total_detect_count < need_query_count); + msleep(100); + } while (--timeout); - if (total_detect_count) + if (de_queried_count) schedule_delayed_work(&ras->page_retirement_dwork, 0); if (amdgpu_ras_is_rma(adev) && atomic_cmpxchg(&ras->rma_in_recovery, 0, 1) == 0) @@ -3525,7 +3512,8 @@ static int amdgpu_ras_page_retirement_thread(void *param) atomic_sub(poison_creation_count, &con->poison_creation_count); atomic_sub(poison_creation_count, &con->page_retirement_req_cnt); } - } while (atomic_read(&con->poison_creation_count)); + } while (atomic_read(&con->poison_creation_count) && + !atomic_read(&con->poison_consumption_count)); if (ret != -EIO) { msg_count = kfifo_len(&con->poison_fifo); @@ -3542,6 +3530,7 @@ static int amdgpu_ras_page_retirement_thread(void *param) /* gpu mode-1 reset is ongoing or just completed ras mode-1 reset */ /* Clear poison creation request */ atomic_set(&con->poison_creation_count, 0); + atomic_set(&con->poison_consumption_count, 0); /* Clear poison fifo */ amdgpu_ras_clear_poison_fifo(adev); @@ -3566,6 +3555,8 @@ static int amdgpu_ras_page_retirement_thread(void *param) atomic_sub(msg_count, &con->page_retirement_req_cnt); } + atomic_set(&con->poison_consumption_count, 0); + /* Wake up work to save bad pages to eeprom */ schedule_delayed_work(&con->page_retirement_dwork, 0); } @@ -3671,6 +3662,7 @@ int amdgpu_ras_recovery_init(struct amdgpu_device *adev, bool init_bp_info) init_waitqueue_head(&con->page_retirement_wq); atomic_set(&con->page_retirement_req_cnt, 0); atomic_set(&con->poison_creation_count, 0); + atomic_set(&con->poison_consumption_count, 0); con->page_retirement_thread = kthread_run(amdgpu_ras_page_retirement_thread, adev, "umc_page_retirement"); if (IS_ERR(con->page_retirement_thread)) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h index 2a70782b07bf..6cf0dfd38be8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h @@ -492,8 +492,8 @@ struct ras_ecc_err { struct ras_ecc_log_info { struct mutex lock; struct radix_tree_root de_page_tree; - uint64_t de_queried_count; - uint64_t prev_de_queried_count; + uint64_t de_queried_count; + uint64_t consumption_q_count; }; struct ras_critical_region { @@ -565,6 +565,7 @@ struct amdgpu_ras { struct mutex page_retirement_lock; atomic_t page_retirement_req_cnt; atomic_t poison_creation_count; + atomic_t poison_consumption_count; struct mutex page_rsv_lock; DECLARE_KFIFO(poison_fifo, struct ras_poison_msg, 128); struct ras_ecc_log_info umc_ecc_log; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c index c92b8794aa73..2e039fb778ea 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c @@ -252,6 +252,7 @@ int amdgpu_umc_pasid_poison_handler(struct amdgpu_device *adev, block, pasid, pasid_fn, data, reset); if (!ret) { atomic_inc(&con->page_retirement_req_cnt); + atomic_inc(&con->poison_consumption_count); wake_up(&con->page_retirement_wq); } } diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c index e590cbdd8de9..8dc32787d625 100644 --- a/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/umc_v12_0.c @@ -536,8 +536,11 @@ static int umc_v12_0_update_ecc_status(struct amdgpu_device *adev, hwid = REG_GET_FIELD(ipid, MCMP1_IPIDT0, HardwareID); mcatype = REG_GET_FIELD(ipid, MCMP1_IPIDT0, McaType); - if ((hwid != MCA_UMC_HWID_V12_0) || (mcatype != MCA_UMC_MCATYPE_V12_0)) + /* The IP block decode of consumption is SMU */ + if (hwid != MCA_UMC_HWID_V12_0 || mcatype != MCA_UMC_MCATYPE_V12_0) { + con->umc_ecc_log.consumption_q_count++; return 0; + } if (!status) return 0;