diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 213 |
1 files changed, 150 insertions, 63 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c index 5a35a8ca8922..3bc0cbf45bc5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c @@ -950,28 +950,30 @@ static void unlock_spi_csq_mutexes(struct amdgpu_device *adev) * @inst: xcc's instance number on a multi-XCC setup */ static void get_wave_count(struct amdgpu_device *adev, int queue_idx, - int *wave_cnt, int *vmid, uint32_t inst) + struct kfd_cu_occupancy *queue_cnt, uint32_t inst) { int pipe_idx; int queue_slot; unsigned int reg_val; - + unsigned int wave_cnt; /* * Program GRBM with appropriate MEID, PIPEID, QUEUEID and VMID * parameters to read out waves in flight. Get VMID if there are * non-zero waves in flight. */ - *vmid = 0xFF; - *wave_cnt = 0; pipe_idx = queue_idx / adev->gfx.mec.num_queue_per_pipe; queue_slot = queue_idx % adev->gfx.mec.num_queue_per_pipe; - soc15_grbm_select(adev, 1, pipe_idx, queue_slot, 0, inst); - reg_val = RREG32_SOC15_IP(GC, SOC15_REG_OFFSET(GC, inst, mmSPI_CSQ_WF_ACTIVE_COUNT_0) + - queue_slot); - *wave_cnt = reg_val & SPI_CSQ_WF_ACTIVE_COUNT_0__COUNT_MASK; - if (*wave_cnt != 0) - *vmid = (RREG32_SOC15(GC, inst, mmCP_HQD_VMID) & - CP_HQD_VMID__VMID_MASK) >> CP_HQD_VMID__VMID__SHIFT; + soc15_grbm_select(adev, 1, pipe_idx, queue_slot, 0, GET_INST(GC, inst)); + reg_val = RREG32_SOC15_IP(GC, SOC15_REG_OFFSET(GC, GET_INST(GC, inst), + mmSPI_CSQ_WF_ACTIVE_COUNT_0) + queue_slot); + wave_cnt = reg_val & SPI_CSQ_WF_ACTIVE_COUNT_0__COUNT_MASK; + if (wave_cnt != 0) { + queue_cnt->wave_cnt += wave_cnt; + queue_cnt->doorbell_off = + (RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_PQ_DOORBELL_CONTROL) & + CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET_MASK) >> + CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT; + } } /** @@ -981,9 +983,8 @@ static void get_wave_count(struct amdgpu_device *adev, int queue_idx, * or more queues running and submitting waves to compute units. * * @adev: Handle of device from which to get number of waves in flight - * @pasid: Identifies the process for which this query call is invoked - * @pasid_wave_cnt: Output parameter updated with number of waves in flight that - * belong to process with given pasid + * @cu_occupancy: Array that gets filled with wave_cnt and doorbell offset + * for comparison later. * @max_waves_per_cu: Output parameter updated with maximum number of waves * possible per Compute Unit * @inst: xcc's instance number on a multi-XCC setup @@ -1011,34 +1012,28 @@ static void get_wave_count(struct amdgpu_device *adev, int queue_idx, * number of waves that are in flight for the queue at specified index. The * index ranges from 0 to 7. * - * If non-zero waves are in flight, read CP_HQD_VMID register to obtain VMID - * of the wave(s). + * If non-zero waves are in flight, store the corresponding doorbell offset + * of the queue, along with the wave count. * - * Determine if VMID from above step maps to pasid provided as parameter. If - * it matches agrregate the wave count. That the VMID will not match pasid is - * a normal condition i.e. a device is expected to support multiple queues - * from multiple proceses. + * Determine if the queue belongs to the process by comparing the doorbell + * offset against the process's queues. If it matches, aggregate the wave + * count for the process. * * Reading registers referenced above involves programming GRBM appropriately */ -void kgd_gfx_v9_get_cu_occupancy(struct amdgpu_device *adev, int pasid, - int *pasid_wave_cnt, int *max_waves_per_cu, uint32_t inst) +void kgd_gfx_v9_get_cu_occupancy(struct amdgpu_device *adev, + struct kfd_cu_occupancy *cu_occupancy, + int *max_waves_per_cu, uint32_t inst) { int qidx; - int vmid; int se_idx; - int sh_idx; int se_cnt; - int sh_cnt; - int wave_cnt; int queue_map; - int pasid_tmp; int max_queue_cnt; - int vmid_wave_cnt = 0; DECLARE_BITMAP(cp_queue_bitmap, AMDGPU_MAX_QUEUES); lock_spi_csq_mutexes(adev); - soc15_grbm_select(adev, 1, 0, 0, 0, inst); + soc15_grbm_select(adev, 1, 0, 0, 0, GET_INST(GC, inst)); /* * Iterate through the shader engines and arrays of the device @@ -1048,51 +1043,38 @@ void kgd_gfx_v9_get_cu_occupancy(struct amdgpu_device *adev, int pasid, AMDGPU_MAX_QUEUES); max_queue_cnt = adev->gfx.mec.num_pipe_per_mec * adev->gfx.mec.num_queue_per_pipe; - sh_cnt = adev->gfx.config.max_sh_per_se; se_cnt = adev->gfx.config.max_shader_engines; for (se_idx = 0; se_idx < se_cnt; se_idx++) { - for (sh_idx = 0; sh_idx < sh_cnt; sh_idx++) { + amdgpu_gfx_select_se_sh(adev, se_idx, 0, 0xffffffff, inst); + queue_map = RREG32_SOC15(GC, GET_INST(GC, inst), mmSPI_CSQ_WF_ACTIVE_STATUS); + + /* + * Assumption: queue map encodes following schema: four + * pipes per each micro-engine, with each pipe mapping + * eight queues. This schema is true for GFX9 devices + * and must be verified for newer device families + */ + for (qidx = 0; qidx < max_queue_cnt; qidx++) { + /* Skip qeueus that are not associated with + * compute functions + */ + if (!test_bit(qidx, cp_queue_bitmap)) + continue; - amdgpu_gfx_select_se_sh(adev, se_idx, sh_idx, 0xffffffff, inst); - queue_map = RREG32_SOC15(GC, inst, mmSPI_CSQ_WF_ACTIVE_STATUS); + if (!(queue_map & (1 << qidx))) + continue; - /* - * Assumption: queue map encodes following schema: four - * pipes per each micro-engine, with each pipe mapping - * eight queues. This schema is true for GFX9 devices - * and must be verified for newer device families - */ - for (qidx = 0; qidx < max_queue_cnt; qidx++) { - - /* Skip qeueus that are not associated with - * compute functions - */ - if (!test_bit(qidx, cp_queue_bitmap)) - continue; - - if (!(queue_map & (1 << qidx))) - continue; - - /* Get number of waves in flight and aggregate them */ - get_wave_count(adev, qidx, &wave_cnt, &vmid, - inst); - if (wave_cnt != 0) { - pasid_tmp = - RREG32(SOC15_REG_OFFSET(OSSSYS, inst, - mmIH_VMID_0_LUT) + vmid); - if (pasid_tmp == pasid) - vmid_wave_cnt += wave_cnt; - } - } + /* Get number of waves in flight and aggregate them */ + get_wave_count(adev, qidx, &cu_occupancy[qidx], + inst); } } amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff, inst); - soc15_grbm_select(adev, 0, 0, 0, 0, inst); + soc15_grbm_select(adev, 0, 0, 0, 0, GET_INST(GC, inst)); unlock_spi_csq_mutexes(adev); /* Update the output parameters and return */ - *pasid_wave_cnt = vmid_wave_cnt; *max_waves_per_cu = adev->gfx.cu_info.simd_per_cu * adev->gfx.cu_info.max_waves_per_simd; } @@ -1144,6 +1126,109 @@ void kgd_gfx_v9_program_trap_handler_settings(struct amdgpu_device *adev, kgd_gfx_v9_unlock_srbm(adev, inst); } +uint64_t kgd_gfx_v9_hqd_get_pq_addr(struct amdgpu_device *adev, + uint32_t pipe_id, uint32_t queue_id, + uint32_t inst) +{ + uint32_t low, high; + uint64_t queue_addr = 0; + + if (!adev->debug_exp_resets && + !adev->gfx.num_gfx_rings) + return 0; + + kgd_gfx_v9_acquire_queue(adev, pipe_id, queue_id, inst); + amdgpu_gfx_rlc_enter_safe_mode(adev, inst); + + if (!RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_ACTIVE)) + goto unlock_out; + + low = RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_PQ_BASE); + high = RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_PQ_BASE_HI); + + /* only concerned with user queues. */ + if (!high) + goto unlock_out; + + queue_addr = (((queue_addr | high) << 32) | low) << 8; + +unlock_out: + amdgpu_gfx_rlc_exit_safe_mode(adev, inst); + kgd_gfx_v9_release_queue(adev, inst); + + return queue_addr; +} + +/* assume queue acquired */ +static int kgd_gfx_v9_hqd_dequeue_wait(struct amdgpu_device *adev, uint32_t inst, + unsigned int utimeout) +{ + unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies; + + while (true) { + uint32_t temp = RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_ACTIVE); + + if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK)) + return 0; + + if (time_after(jiffies, end_jiffies)) + return -ETIME; + + usleep_range(500, 1000); + } +} + +uint64_t kgd_gfx_v9_hqd_reset(struct amdgpu_device *adev, + uint32_t pipe_id, uint32_t queue_id, + uint32_t inst, unsigned int utimeout) +{ + uint32_t low, high, pipe_reset_data = 0; + uint64_t queue_addr = 0; + + kgd_gfx_v9_acquire_queue(adev, pipe_id, queue_id, inst); + amdgpu_gfx_rlc_enter_safe_mode(adev, inst); + + if (!RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_ACTIVE)) + goto unlock_out; + + low = RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_PQ_BASE); + high = RREG32_SOC15(GC, GET_INST(GC, inst), mmCP_HQD_PQ_BASE_HI); + + /* only concerned with user queues. */ + if (!high) + goto unlock_out; + + queue_addr = (((queue_addr | high) << 32) | low) << 8; + + pr_debug("Attempting queue reset on XCC %i pipe id %i queue id %i\n", + inst, pipe_id, queue_id); + + /* assume previous dequeue request issued will take affect after reset */ + WREG32_SOC15(GC, GET_INST(GC, inst), mmSPI_COMPUTE_QUEUE_RESET, 0x1); + + if (!kgd_gfx_v9_hqd_dequeue_wait(adev, inst, utimeout)) + goto unlock_out; + + pr_debug("Attempting pipe reset on XCC %i pipe id %i\n", inst, pipe_id); + + pipe_reset_data = REG_SET_FIELD(pipe_reset_data, CP_MEC_CNTL, MEC_ME1_PIPE0_RESET, 1); + pipe_reset_data = pipe_reset_data << pipe_id; + + WREG32_SOC15(GC, GET_INST(GC, inst), mmCP_MEC_CNTL, pipe_reset_data); + WREG32_SOC15(GC, GET_INST(GC, inst), mmCP_MEC_CNTL, 0); + + if (kgd_gfx_v9_hqd_dequeue_wait(adev, inst, utimeout)) + queue_addr = 0; + +unlock_out: + pr_debug("queue reset on XCC %i pipe id %i queue id %i %s\n", + inst, pipe_id, queue_id, !!queue_addr ? "succeeded!" : "failed!"); + amdgpu_gfx_rlc_exit_safe_mode(adev, inst); + kgd_gfx_v9_release_queue(adev, inst); + + return queue_addr; +} + const struct kfd2kgd_calls gfx_v9_kfd2kgd = { .program_sh_mem_settings = kgd_gfx_v9_program_sh_mem_settings, .set_pasid_vmid_mapping = kgd_gfx_v9_set_pasid_vmid_mapping, @@ -1172,4 +1257,6 @@ const struct kfd2kgd_calls gfx_v9_kfd2kgd = { .build_grace_period_packet_info = kgd_gfx_v9_build_grace_period_packet_info, .get_cu_occupancy = kgd_gfx_v9_get_cu_occupancy, .program_trap_handler_settings = kgd_gfx_v9_program_trap_handler_settings, + .hqd_get_pq_addr = kgd_gfx_v9_hqd_get_pq_addr, + .hqd_reset = kgd_gfx_v9_hqd_reset }; |