[AMD Public Use]
-----Original Message----- From: Hawking Zhang <[email protected]> Sent: Thursday, January 9, 2020 12:17 AM To: [email protected]; Deucher, Alexander <[email protected]>; Li, Dennis <[email protected]>; Clements, John <[email protected]>; Chen, Guchun <[email protected]>; Zhou1, Tao <[email protected]>; Li, Candice <[email protected]>; Long, Gang <[email protected]> Cc: Zhang, Hawking <[email protected]> Subject: [PATCH 1/4] drm/amdgpu: add query_ras_error_count function for sdma v4 query_ras_error_count function will be invoked to query single bit error count detected in sdma ip block Change-Id: I1b17df7c66e71739ae4c31900bd96c5359af2240 Signed-off-by: Hawking Zhang <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 6 + drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 163 +++++++++++++++++++++++ 2 files changed, 169 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h index 957791673fcd..9e87a97f81fb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h @@ -50,6 +50,11 @@ struct amdgpu_sdma_instance { bool burst_nop; }; +struct amdgpu_sdma_ras_funcs { + int (*query_ras_error_count)(struct amdgpu_device *adev, + uint32_t instance, void *ras_error_status); }; + struct amdgpu_sdma { struct amdgpu_sdma_instance instance[AMDGPU_MAX_SDMA_INSTANCES]; struct drm_gpu_scheduler *sdma_sched[AMDGPU_MAX_SDMA_INSTANCES]; @@ -61,6 +66,7 @@ struct amdgpu_sdma { uint32_t srbm_soft_reset; bool has_page_queue; struct ras_common_if *ras_if; + const struct amdgpu_sdma_ras_funcs *funcs; }; /* diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index 4074314695c3..a00b85934b04 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -82,6 +82,7 @@ static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev); static void sdma_v4_0_set_buffer_funcs(struct amdgpu_device *adev); static void sdma_v4_0_set_vm_pte_funcs(struct amdgpu_device *adev); static void sdma_v4_0_set_irq_funcs(struct amdgpu_device *adev); +static void sdma_v4_0_set_ras_funcs(struct amdgpu_device *adev); static const struct soc15_reg_golden golden_settings_sdma_4[] = { SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_CHICKEN_BITS, 0xfe931f07, 0x02831d07), @@ -257,6 +258,105 @@ static const struct soc15_reg_golden golden_settings_sdma_4_3[] = { SOC15_REG_GOLDEN_VALUE(SDMA0, 0, mmSDMA0_UTCL1_WATERMK, 0xfc000000, 0x00000000) }; +static const struct soc15_ras_field_entry sdma_v4_0_ras_fields[] = { + { "SDMA_UCODE_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_UCODE_BUF_SED), + 0, 0, + }, + { "SDMA_RB_CMD_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_RB_CMD_BUF_SED), + 0, 0, + }, + { "SDMA_IB_CMD_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_IB_CMD_BUF_SED), + 0, 0, + }, + { "SDMA_UTCL1_RD_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_UTCL1_RD_FIFO_SED), + 0, 0, + }, [Guchun]The indentation looks not right. + { "SDMA_UTCL1_RDBST_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_UTCL1_RDBST_FIFO_SED), + 0, 0, + }, + { "SDMA_DATA_LUT_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_DATA_LUT_FIFO_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF0_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF0_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF1_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF1_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF2_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF2_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF3_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF3_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF4_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF4_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF5_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF5_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF6_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF6_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF7_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF7_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF8_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF8_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF9_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF9_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF10_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF10_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF11_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF11_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF12_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF12_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF13_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF13_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF14_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF14_SED), + 0, 0, + }, + { "SDMA_MBANK_DATA_BUF15_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MBANK_DATA_BUF15_SED), + 0, 0, + }, + { "SDMA_SPLIT_DAT_BUF_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_SPLIT_DAT_BUF_SED), + 0, 0, + }, + { "SDMA_MC_WR_ADDR_FIFO_SED", SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_EDC_COUNTER), + SOC15_REG_FIELD(SDMA0_EDC_COUNTER, SDMA_MC_WR_ADDR_FIFO_SED), + 0, 0, + }, +}; + static u32 sdma_v4_0_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 offset) { @@ -1687,6 +1787,7 @@ static int sdma_v4_0_early_init(void *handle) sdma_v4_0_set_buffer_funcs(adev); sdma_v4_0_set_vm_pte_funcs(adev); sdma_v4_0_set_irq_funcs(adev); + sdma_v4_0_set_ras_funcs(adev); return 0; } @@ -2417,6 +2518,68 @@ static void sdma_v4_0_set_vm_pte_funcs(struct amdgpu_device *adev) adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances; } +static void sdma_v4_0_get_ras_error_count(uint32_t value, + uint32_t instance, + uint32_t *sec_count) +{ + uint32_t i; + uint32_t sec_cnt; + + /* double bits error (multiple bits) error detection is not supported */ + for (i = 0; i < ARRAY_SIZE(sdma_v4_0_ras_fields); i++) { + /* the SDMA_EDC_COUNTER register in each sdma instance + * shares the same sed shift_mask + * */ + sec_cnt = (value & + sdma_v4_0_ras_fields[i].sec_count_mask) >> + sdma_v4_0_ras_fields[i].sec_count_shift; + if (sec_cnt) { + DRM_INFO("Detected %s in SDMA%d, SED %d\n", + sdma_v4_0_ras_fields[i].name, + instance, sec_cnt); + *sec_count += sec_cnt; + } + } +} + +static int sdma_v4_0_query_ras_error_count(struct amdgpu_device *adev, + uint32_t instance, void *ras_error_status) { + struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; + uint32_t sec_count = 0; + uint32_t reg_value = 0; + + reg_value = RREG32_SDMA(instance, mmSDMA0_EDC_COUNTER); [Guchun]One question is, after reading SDMA_EDC_COUNTER, do we need to explicitly clear this counter register to avoid duplicated counting in multiple querying case? Or that register is cleared automatically after reading once? + /* double bit error is not supported */ + if (reg_value) + sdma_v4_0_get_ras_error_count(reg_value, + instance, &sec_count); + /* err_data->ce_count should be initialized to 0 + * before calling into this function */ + err_data->ce_count += sec_count; + /* double bit error is not supported + * set ue count to 0 */ + err_data->ue_count = 0; + + return 0; +}; + +static const struct amdgpu_sdma_ras_funcs sdma_v4_0_ras_funcs = { + .query_ras_error_count = sdma_v4_0_query_ras_error_count, }; + +static void sdma_v4_0_set_ras_funcs(struct amdgpu_device *adev) { + switch (adev->asic_type) { + case CHIP_VEGA20: + case CHIP_ARCTURUS: + adev->sdma.funcs = &sdma_v4_0_ras_funcs; + break; + default: + break; + } +} + const struct amdgpu_ip_block_version sdma_v4_0_ip_block = { .type = AMD_IP_BLOCK_TYPE_SDMA, .major = 4, -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
