diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c index cd1a02d30420..9ea072374cb7 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c @@ -32,6 +32,18 @@ #define NPS_MODE_MASK 0x000000FFL +/* Core 0 Port 0 counter */ +#define smnPCIEP_NAK_COUNTER 0x1A340218 + +#define smnPCIE_PERF_CNTL_TXCLK3 0x1A38021c +#define smnPCIE_PERF_CNTL_TXCLK7 0x1A380888 +#define smnPCIE_PERF_COUNT_CNTL 0x1A380200 +#define smnPCIE_PERF_COUNT0_TXCLK3 0x1A380220 +#define smnPCIE_PERF_COUNT0_TXCLK7 0x1A38088C +#define smnPCIE_PERF_COUNT0_UPVAL_TXCLK3 0x1A3808F8 +#define smnPCIE_PERF_COUNT0_UPVAL_TXCLK7 0x1A380918 + + static void nbio_v7_9_remap_hdp_registers(struct amdgpu_device *adev) { WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL, @@ -427,6 +439,75 @@ static void nbio_v7_9_init_registers(struct amdgpu_device *adev) } } +static u64 nbio_v7_9_get_pcie_replay_count(struct amdgpu_device *adev) +{ + u32 val, nak_r, nak_g; + + if (adev->flags & AMD_IS_APU) + return 0; + + /* Get the number of NAKs received and generated */ + val = RREG32_PCIE(smnPCIEP_NAK_COUNTER); + nak_r = val & 0xFFFF; + nak_g = val >> 16; + + /* Add the total number of NAKs, i.e the number of replays */ + return (nak_r + nak_g); +} + +static void nbio_v7_9_get_pcie_usage(struct amdgpu_device *adev, uint64_t *count0, + uint64_t *count1) +{ + uint32_t perfctrrx = 0; + uint32_t perfctrtx = 0; + + /* This reports 0 on APUs, so return to avoid writing/reading registers + * that may or may not be different from their GPU counterparts + */ + if (adev->flags & AMD_IS_APU) + return; + + /* Use TXCLK3 counter group for rx event */ + /* Use TXCLK7 counter group for tx event */ + /* Set the 2 events that we wish to watch, defined above */ + /* 40 is event# for received msgs */ + /* 2 is event# of posted requests sent */ + perfctrrx = REG_SET_FIELD(perfctrrx, PCIE_PERF_CNTL_TXCLK3, EVENT0_SEL, 40); + perfctrtx = REG_SET_FIELD(perfctrtx, PCIE_PERF_CNTL_TXCLK7, EVENT0_SEL, 2); + + /* Write to enable desired perf counters */ + WREG32_PCIE(smnPCIE_PERF_CNTL_TXCLK3, perfctrrx); + WREG32_PCIE(smnPCIE_PERF_CNTL_TXCLK7, perfctrtx); + + /* Zero out and enable SHADOW_WR + * Write 0x6: + * Bit 1 = Global Shadow wr(1) + * Bit 2 = Global counter reset enable(1) + */ + WREG32_PCIE(smnPCIE_PERF_COUNT_CNTL, 0x00000006); + + /* Enable Gloabl Counter + * Write 0x1: + * Bit 0 = Global Counter Enable(1) + */ + WREG32_PCIE(smnPCIE_PERF_COUNT_CNTL, 0x00000001); + + msleep(1000); + + /* Disable Global Counter, Reset and enable SHADOW_WR + * Write 0x6: + * Bit 1 = Global Shadow wr(1) + * Bit 2 = Global counter reset enable(1) + */ + WREG32_PCIE(smnPCIE_PERF_COUNT_CNTL, 0x00000006); + + /* Get the upper and lower count */ + *count0 = RREG32_PCIE(smnPCIE_PERF_COUNT0_TXCLK3) | + ((uint64_t)RREG32_PCIE(smnPCIE_PERF_COUNT0_UPVAL_TXCLK3) << 32); + *count1 = RREG32_PCIE(smnPCIE_PERF_COUNT0_TXCLK7) | + ((uint64_t)RREG32_PCIE(smnPCIE_PERF_COUNT0_UPVAL_TXCLK7) << 32); +} + const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .get_hdp_flush_req_offset = nbio_v7_9_get_hdp_flush_req_offset, .get_hdp_flush_done_offset = nbio_v7_9_get_hdp_flush_done_offset, @@ -450,4 +531,193 @@ const struct amdgpu_nbio_funcs nbio_v7_9_funcs = { .get_compute_partition_mode = nbio_v7_9_get_compute_partition_mode, .get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode, .init_registers = nbio_v7_9_init_registers, + .get_pcie_replay_count = nbio_v7_9_get_pcie_replay_count, + .get_pcie_usage = nbio_v7_9_get_pcie_usage, +}; + +static void nbio_v7_9_query_ras_error_count(struct amdgpu_device *adev, + void *ras_error_status) +{ + return; +} + +static void nbio_v7_9_handle_ras_controller_intr_no_bifring(struct amdgpu_device *adev) +{ + uint32_t bif_doorbell_intr_cntl; + struct ras_manager *obj = amdgpu_ras_find_obj(adev, adev->nbio.ras_if); + struct ras_err_data err_data = {0, 0, 0, NULL}; + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); + + bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL); + + if (REG_GET_FIELD(bif_doorbell_intr_cntl, + BIF_BX0_BIF_DOORBELL_INT_CNTL, RAS_CNTLR_INTERRUPT_STATUS)) { + /* driver has to clear the interrupt status when bif ring is disabled */ + bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl, + BIF_BX0_BIF_DOORBELL_INT_CNTL, + RAS_CNTLR_INTERRUPT_CLEAR, 1); + WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl); + + if (!ras->disable_ras_err_cnt_harvest) { + /* + * clear error status after ras_controller_intr + * according to hw team and count ue number + * for query + */ + nbio_v7_9_query_ras_error_count(adev, &err_data); + + /* logging on error cnt and printing for awareness */ + obj->err_data.ue_count += err_data.ue_count; + obj->err_data.ce_count += err_data.ce_count; + + if (err_data.ce_count) + dev_info(adev->dev, "%ld correctable hardware " + "errors detected in %s block, " + "no user action is needed.\n", + obj->err_data.ce_count, + get_ras_block_str(adev->nbio.ras_if)); + + if (err_data.ue_count) + dev_info(adev->dev, "%ld uncorrectable hardware " + "errors detected in %s block\n", + obj->err_data.ue_count, + get_ras_block_str(adev->nbio.ras_if)); + } + + dev_info(adev->dev, "RAS controller interrupt triggered " + "by NBIF error\n"); + + /* ras_controller_int is dedicated for nbif ras error, + * not the global interrupt for sync flood + */ + amdgpu_ras_reset_gpu(adev); + } +} + +static void nbio_v7_9_handle_ras_err_event_athub_intr_no_bifring(struct amdgpu_device *adev) +{ + uint32_t bif_doorbell_intr_cntl; + + bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL); + + if (REG_GET_FIELD(bif_doorbell_intr_cntl, + BIF_BX0_BIF_DOORBELL_INT_CNTL, RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS)) { + /* driver has to clear the interrupt status when bif ring is disabled */ + bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl, + BIF_BX0_BIF_DOORBELL_INT_CNTL, + RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR, 1); + + WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl); + + amdgpu_ras_global_ras_isr(adev); + } +} + +static int nbio_v7_9_set_ras_controller_irq_state(struct amdgpu_device *adev, + struct amdgpu_irq_src *src, + unsigned type, + enum amdgpu_interrupt_state state) +{ + /* Dummy function, there is no initialization operation in driver */ + + return 0; +} + +static int nbio_v7_9_process_ras_controller_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + /* By design, the ih cookie for ras_controller_irq should be written + * to BIFring instead of general iv ring. However, due to known bif ring + * hw bug, it has to be disabled. There is no chance the process function + * will be involked. Just left it as a dummy one. + */ + return 0; +} + +static int nbio_v7_9_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev, + struct amdgpu_irq_src *src, + unsigned type, + enum amdgpu_interrupt_state state) +{ + /* Dummy function, there is no initialization operation in driver */ + + return 0; +} + +static int nbio_v7_9_process_err_event_athub_irq(struct amdgpu_device *adev, + struct amdgpu_irq_src *source, + struct amdgpu_iv_entry *entry) +{ + /* By design, the ih cookie for err_event_athub_irq should be written + * to BIFring instead of general iv ring. However, due to known bif ring + * hw bug, it has to be disabled. There is no chance the process function + * will be involked. Just left it as a dummy one. + */ + return 0; +} + +static const struct amdgpu_irq_src_funcs nbio_v7_9_ras_controller_irq_funcs = { + .set = nbio_v7_9_set_ras_controller_irq_state, + .process = nbio_v7_9_process_ras_controller_irq, +}; + +static const struct amdgpu_irq_src_funcs nbio_v7_9_ras_err_event_athub_irq_funcs = { + .set = nbio_v7_9_set_ras_err_event_athub_irq_state, + .process = nbio_v7_9_process_err_event_athub_irq, +}; + +static int nbio_v7_9_init_ras_controller_interrupt (struct amdgpu_device *adev) +{ + int r; + + /* init the irq funcs */ + adev->nbio.ras_controller_irq.funcs = + &nbio_v7_9_ras_controller_irq_funcs; + adev->nbio.ras_controller_irq.num_types = 1; + + /* register ras controller interrupt */ + r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF, + NBIF_7_4__SRCID__RAS_CONTROLLER_INTERRUPT, + &adev->nbio.ras_controller_irq); + + return r; +} + +static int nbio_v7_9_init_ras_err_event_athub_interrupt (struct amdgpu_device *adev) +{ + + int r; + + /* init the irq funcs */ + adev->nbio.ras_err_event_athub_irq.funcs = + &nbio_v7_9_ras_err_event_athub_irq_funcs; + adev->nbio.ras_err_event_athub_irq.num_types = 1; + + /* register ras err event athub interrupt */ + r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF, + NBIF_7_4__SRCID__ERREVENT_ATHUB_INTERRUPT, + &adev->nbio.ras_err_event_athub_irq); + + return r; +} + +const struct amdgpu_ras_block_hw_ops nbio_v7_9_ras_hw_ops = { + .query_ras_error_count = nbio_v7_9_query_ras_error_count, +}; + +struct amdgpu_nbio_ras nbio_v7_9_ras = { + .ras_block = { + .ras_comm = { + .name = "pcie_bif", + .block = AMDGPU_RAS_BLOCK__PCIE_BIF, + .type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE, + }, + .hw_ops = &nbio_v7_9_ras_hw_ops, + .ras_late_init = amdgpu_nbio_ras_late_init, + }, + .handle_ras_controller_intr_no_bifring = nbio_v7_9_handle_ras_controller_intr_no_bifring, + .handle_ras_err_event_athub_intr_no_bifring = nbio_v7_9_handle_ras_err_event_athub_intr_no_bifring, + .init_ras_controller_interrupt = nbio_v7_9_init_ras_controller_interrupt, + .init_ras_err_event_athub_interrupt = nbio_v7_9_init_ras_err_event_athub_interrupt, }; |