diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c | 191 |
1 files changed, 164 insertions, 27 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c index 5254562fd0f9..dc7e25cce741 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c @@ -39,6 +39,12 @@ #include "gmc/gmc_7_1_sh_mask.h" #include "cik_structs.h" +enum hqd_dequeue_request_type { + NO_ACTION = 0, + DRAIN_PIPE, + RESET_WAVES +}; + enum { MAX_TRAPID = 8, /* 3 bits in the bitfield. */ MAX_WATCH_ADDRESSES = 4 @@ -96,12 +102,15 @@ static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id, uint32_t hpd_size, uint64_t hpd_gpu_addr); static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id); static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, - uint32_t queue_id, uint32_t __user *wptr); + uint32_t queue_id, uint32_t __user *wptr, + uint32_t wptr_shift, uint32_t wptr_mask, + struct mm_struct *mm); static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd); static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address, uint32_t pipe_id, uint32_t queue_id); -static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type, +static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd, + enum kfd_preempt_type reset_type, unsigned int utimeout, uint32_t pipe_id, uint32_t queue_id); static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd); @@ -126,6 +135,33 @@ static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd, static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid); static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type); +static void set_scratch_backing_va(struct kgd_dev *kgd, + uint64_t va, uint32_t vmid); + +/* Because of REG_GET_FIELD() being used, we put this function in the + * asic specific file. + */ +static int get_tile_config(struct kgd_dev *kgd, + struct tile_config *config) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)kgd; + + config->gb_addr_config = adev->gfx.config.gb_addr_config; + config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg, + MC_ARB_RAMCFG, NOOFBANK); + config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg, + MC_ARB_RAMCFG, NOOFRANKS); + + config->tile_config_ptr = adev->gfx.config.tile_mode_array; + config->num_tile_configs = + ARRAY_SIZE(adev->gfx.config.tile_mode_array); + config->macro_tile_config_ptr = + adev->gfx.config.macrotile_mode_array; + config->num_macro_tile_configs = + ARRAY_SIZE(adev->gfx.config.macrotile_mode_array); + + return 0; +} static const struct kfd2kgd_calls kfd2kgd = { .init_gtt_mem_allocation = alloc_gtt_mem, @@ -133,6 +169,8 @@ static const struct kfd2kgd_calls kfd2kgd = { .get_vmem_size = get_vmem_size, .get_gpu_clock_counter = get_gpu_clock_counter, .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz, + .alloc_pasid = amdgpu_vm_alloc_pasid, + .free_pasid = amdgpu_vm_free_pasid, .program_sh_mem_settings = kgd_program_sh_mem_settings, .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping, .init_pipeline = kgd_init_pipeline, @@ -150,7 +188,9 @@ static const struct kfd2kgd_calls kfd2kgd = { .get_atc_vmid_pasid_mapping_pasid = get_atc_vmid_pasid_mapping_pasid, .get_atc_vmid_pasid_mapping_valid = get_atc_vmid_pasid_mapping_valid, .write_vmid_invalidate_request = write_vmid_invalidate_request, - .get_fw_version = get_fw_version + .get_fw_version = get_fw_version, + .set_scratch_backing_va = set_scratch_backing_va, + .get_tile_config = get_tile_config, }; struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void) @@ -186,7 +226,7 @@ static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id, { struct amdgpu_device *adev = get_amdgpu_device(kgd); - uint32_t mec = (++pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; + uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); lock_srbm(kgd, mec, pipe, queue_id, 0); @@ -290,20 +330,38 @@ static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd) } static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, - uint32_t queue_id, uint32_t __user *wptr) + uint32_t queue_id, uint32_t __user *wptr, + uint32_t wptr_shift, uint32_t wptr_mask, + struct mm_struct *mm) { struct amdgpu_device *adev = get_amdgpu_device(kgd); - uint32_t wptr_shadow, is_wptr_shadow_valid; struct cik_mqd *m; + uint32_t *mqd_hqd; + uint32_t reg, wptr_val, data; m = get_mqd(mqd); - is_wptr_shadow_valid = !get_user(wptr_shadow, wptr); - if (is_wptr_shadow_valid) - m->cp_hqd_pq_wptr = wptr_shadow; - acquire_queue(kgd, pipe_id, queue_id); - gfx_v7_0_mqd_commit(adev, m); + + /* HQD registers extend from CP_MQD_BASE_ADDR to CP_MQD_CONTROL. */ + mqd_hqd = &m->cp_mqd_base_addr_lo; + + for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_MQD_CONTROL; reg++) + WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]); + + /* Copy userspace write pointer value to register. + * Activate doorbell logic to monitor subsequent changes. + */ + data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control, + CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1); + WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data); + + if (read_user_wptr(mm, wptr, wptr_val)) + WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask); + + data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1); + WREG32(mmCP_HQD_ACTIVE, data); + release_queue(kgd); return 0; @@ -382,30 +440,99 @@ static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd) return false; } -static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type, +static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd, + enum kfd_preempt_type reset_type, unsigned int utimeout, uint32_t pipe_id, uint32_t queue_id) { struct amdgpu_device *adev = get_amdgpu_device(kgd); uint32_t temp; - int timeout = utimeout; + enum hqd_dequeue_request_type type; + unsigned long flags, end_jiffies; + int retry; acquire_queue(kgd, pipe_id, queue_id); WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, 0); - WREG32(mmCP_HQD_DEQUEUE_REQUEST, reset_type); + switch (reset_type) { + case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN: + type = DRAIN_PIPE; + break; + case KFD_PREEMPT_TYPE_WAVEFRONT_RESET: + type = RESET_WAVES; + break; + default: + type = DRAIN_PIPE; + break; + } + + /* Workaround: If IQ timer is active and the wait time is close to or + * equal to 0, dequeueing is not safe. Wait until either the wait time + * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is + * cleared before continuing. Also, ensure wait times are set to at + * least 0x3. + */ + local_irq_save(flags); + preempt_disable(); + retry = 5000; /* wait for 500 usecs at maximum */ + while (true) { + temp = RREG32(mmCP_HQD_IQ_TIMER); + if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) { + pr_debug("HW is processing IQ\n"); + goto loop; + } + if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) { + if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE) + == 3) /* SEM-rearm is safe */ + break; + /* Wait time 3 is safe for CP, but our MMIO read/write + * time is close to 1 microsecond, so check for 10 to + * leave more buffer room + */ + if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME) + >= 10) + break; + pr_debug("IQ timer is active\n"); + } else + break; +loop: + if (!retry) { + pr_err("CP HQD IQ timer status time out\n"); + break; + } + ndelay(100); + --retry; + } + retry = 1000; + while (true) { + temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST); + if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK)) + break; + pr_debug("Dequeue request is pending\n"); + if (!retry) { + pr_err("CP HQD dequeue request time out\n"); + break; + } + ndelay(100); + --retry; + } + local_irq_restore(flags); + preempt_enable(); + + WREG32(mmCP_HQD_DEQUEUE_REQUEST, type); + + end_jiffies = (utimeout * HZ / 1000) + jiffies; while (true) { temp = RREG32(mmCP_HQD_ACTIVE); - if (temp & CP_HQD_ACTIVE__ACTIVE_MASK) + if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK)) break; - if (timeout <= 0) { - pr_err("kfd: cp queue preemption time out.\n"); + if (time_after(jiffies, end_jiffies)) { + pr_err("cp queue preemption time out\n"); release_queue(kgd); return -ETIME; } - msleep(20); - timeout -= 20; + usleep_range(500, 1000); } release_queue(kgd); @@ -556,6 +683,16 @@ static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid) WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); } +static void set_scratch_backing_va(struct kgd_dev *kgd, + uint64_t va, uint32_t vmid) +{ + struct amdgpu_device *adev = (struct amdgpu_device *) kgd; + + lock_srbm(kgd, 0, 0, 0, vmid); + WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va); + unlock_srbm(kgd); +} + static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type) { struct amdgpu_device *adev = (struct amdgpu_device *) kgd; @@ -566,42 +703,42 @@ static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type) switch (type) { case KGD_ENGINE_PFP: hdr = (const union amdgpu_firmware_header *) - adev->gfx.pfp_fw->data; + adev->gfx.pfp_fw->data; break; case KGD_ENGINE_ME: hdr = (const union amdgpu_firmware_header *) - adev->gfx.me_fw->data; + adev->gfx.me_fw->data; break; case KGD_ENGINE_CE: hdr = (const union amdgpu_firmware_header *) - adev->gfx.ce_fw->data; + adev->gfx.ce_fw->data; break; case KGD_ENGINE_MEC1: hdr = (const union amdgpu_firmware_header *) - adev->gfx.mec_fw->data; + adev->gfx.mec_fw->data; break; case KGD_ENGINE_MEC2: hdr = (const union amdgpu_firmware_header *) - adev->gfx.mec2_fw->data; + adev->gfx.mec2_fw->data; break; case KGD_ENGINE_RLC: hdr = (const union amdgpu_firmware_header *) - adev->gfx.rlc_fw->data; + adev->gfx.rlc_fw->data; break; case KGD_ENGINE_SDMA1: hdr = (const union amdgpu_firmware_header *) - adev->sdma.instance[0].fw->data; + adev->sdma.instance[0].fw->data; break; case KGD_ENGINE_SDMA2: hdr = (const union amdgpu_firmware_header *) - adev->sdma.instance[1].fw->data; + adev->sdma.instance[1].fw->data; break; default: |