diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
6 files changed, 81 insertions, 89 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index 3f95f7cb4019..88187bfc5ea3 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -226,6 +226,10 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd, kfd->shared_resources = *gpu_resources; + /* We only use the first MEC */ + if (kfd->shared_resources.num_mec > 1) + kfd->shared_resources.num_mec = 1; + /* calculate max size of mqds needed for queues */ size = max_num_of_queues_per_device * kfd->device_info->mqd_size_aligned; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index f49c551195b3..955aa304ff48 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -63,21 +63,44 @@ enum KFD_MQD_TYPE get_mqd_type_from_queue_type(enum kfd_queue_type type) return KFD_MQD_TYPE_CP; } -unsigned int get_first_pipe(struct device_queue_manager *dqm) +static bool is_pipe_enabled(struct device_queue_manager *dqm, int mec, int pipe) +{ + int i; + int pipe_offset = mec * dqm->dev->shared_resources.num_pipe_per_mec + + pipe * dqm->dev->shared_resources.num_queue_per_pipe; + + /* queue is available for KFD usage if bit is 1 */ + for (i = 0; i < dqm->dev->shared_resources.num_queue_per_pipe; ++i) + if (test_bit(pipe_offset + i, + dqm->dev->shared_resources.queue_bitmap)) + return true; + return false; +} + +unsigned int get_mec_num(struct device_queue_manager *dqm) { BUG_ON(!dqm || !dqm->dev); - return dqm->dev->shared_resources.first_compute_pipe; + + return dqm->dev->shared_resources.num_mec; } -unsigned int get_pipes_num(struct device_queue_manager *dqm) +unsigned int get_queues_num(struct device_queue_manager *dqm) { BUG_ON(!dqm || !dqm->dev); - return dqm->dev->shared_resources.compute_pipe_count; + return bitmap_weight(dqm->dev->shared_resources.queue_bitmap, + KGD_MAX_QUEUES); } -static inline unsigned int get_pipes_num_cpsch(void) +unsigned int get_queues_per_pipe(struct device_queue_manager *dqm) { - return PIPE_PER_ME_CP_SCHEDULING; + BUG_ON(!dqm || !dqm->dev); + return dqm->dev->shared_resources.num_queue_per_pipe; +} + +unsigned int get_pipes_per_mec(struct device_queue_manager *dqm) +{ + BUG_ON(!dqm || !dqm->dev); + return dqm->dev->shared_resources.num_pipe_per_mec; } void program_sh_mem_settings(struct device_queue_manager *dqm, @@ -200,12 +223,16 @@ static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q) set = false; - for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_num(dqm); - pipe = ((pipe + 1) % get_pipes_num(dqm)), ++i) { + for (pipe = dqm->next_pipe_to_allocate, i = 0; i < get_pipes_per_mec(dqm); + pipe = ((pipe + 1) % get_pipes_per_mec(dqm)), ++i) { + + if (!is_pipe_enabled(dqm, 0, pipe)) + continue; + if (dqm->allocated_queues[pipe] != 0) { bit = find_first_bit( (unsigned long *)&dqm->allocated_queues[pipe], - QUEUES_PER_PIPE); + get_queues_per_pipe(dqm)); clear_bit(bit, (unsigned long *)&dqm->allocated_queues[pipe]); @@ -222,7 +249,7 @@ static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q) pr_debug("kfd: DQM %s hqd slot - pipe (%d) queue(%d)\n", __func__, q->pipe, q->queue); /* horizontal hqd allocation */ - dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_num(dqm); + dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_per_mec(dqm); return 0; } @@ -469,81 +496,25 @@ set_pasid_vmid_mapping(struct device_queue_manager *dqm, unsigned int pasid, vmid); } -int init_pipelines(struct device_queue_manager *dqm, - unsigned int pipes_num, unsigned int first_pipe) -{ - void *hpdptr; - struct mqd_manager *mqd; - unsigned int i, err, inx; - uint64_t pipe_hpd_addr; - - BUG_ON(!dqm || !dqm->dev); - - pr_debug("kfd: In func %s\n", __func__); - - /* - * Allocate memory for the HPDs. This is hardware-owned per-pipe data. - * The driver never accesses this memory after zeroing it. - * It doesn't even have to be saved/restored on suspend/resume - * because it contains no data when there are no active queues. - */ - - err = kfd_gtt_sa_allocate(dqm->dev, CIK_HPD_EOP_BYTES * pipes_num, - &dqm->pipeline_mem); - - if (err) { - pr_err("kfd: error allocate vidmem num pipes: %d\n", - pipes_num); - return -ENOMEM; - } - - hpdptr = dqm->pipeline_mem->cpu_ptr; - dqm->pipelines_addr = dqm->pipeline_mem->gpu_addr; - - memset(hpdptr, 0, CIK_HPD_EOP_BYTES * pipes_num); - - mqd = dqm->ops.get_mqd_manager(dqm, KFD_MQD_TYPE_COMPUTE); - if (mqd == NULL) { - kfd_gtt_sa_free(dqm->dev, dqm->pipeline_mem); - return -ENOMEM; - } - - for (i = 0; i < pipes_num; i++) { - inx = i + first_pipe; - /* - * HPD buffer on GTT is allocated by amdkfd, no need to waste - * space in GTT for pipelines we don't initialize - */ - pipe_hpd_addr = dqm->pipelines_addr + i * CIK_HPD_EOP_BYTES; - pr_debug("kfd: pipeline address %llX\n", pipe_hpd_addr); - /* = log2(bytes/4)-1 */ - dqm->dev->kfd2kgd->init_pipeline(dqm->dev->kgd, inx, - CIK_HPD_EOP_BYTES_LOG2 - 3, pipe_hpd_addr); - } - - return 0; -} - static void init_interrupts(struct device_queue_manager *dqm) { unsigned int i; BUG_ON(dqm == NULL); - for (i = 0 ; i < get_pipes_num(dqm) ; i++) - dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd, - i + get_first_pipe(dqm)); + for (i = 0 ; i < get_pipes_per_mec(dqm) ; i++) + if (is_pipe_enabled(dqm, 0, i)) + dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd, i); } static int init_scheduler(struct device_queue_manager *dqm) { - int retval; + int retval = 0; BUG_ON(!dqm); pr_debug("kfd: In %s\n", __func__); - retval = init_pipelines(dqm, get_pipes_num(dqm), get_first_pipe(dqm)); return retval; } @@ -554,21 +525,21 @@ static int initialize_nocpsch(struct device_queue_manager *dqm) BUG_ON(!dqm); pr_debug("kfd: In func %s num of pipes: %d\n", - __func__, get_pipes_num(dqm)); + __func__, get_pipes_per_mec(dqm)); mutex_init(&dqm->lock); INIT_LIST_HEAD(&dqm->queues); dqm->queue_count = dqm->next_pipe_to_allocate = 0; dqm->sdma_queue_count = 0; - dqm->allocated_queues = kcalloc(get_pipes_num(dqm), + dqm->allocated_queues = kcalloc(get_pipes_per_mec(dqm), sizeof(unsigned int), GFP_KERNEL); if (!dqm->allocated_queues) { mutex_destroy(&dqm->lock); return -ENOMEM; } - for (i = 0; i < get_pipes_num(dqm); i++) - dqm->allocated_queues[i] = (1 << QUEUES_PER_PIPE) - 1; + for (i = 0; i < get_pipes_per_mec(dqm); i++) + dqm->allocated_queues[i] = (1 << get_queues_per_pipe(dqm)) - 1; dqm->vmid_bitmap = (1 << VMID_PER_DEVICE) - 1; dqm->sdma_bitmap = (1 << CIK_SDMA_QUEUES) - 1; @@ -675,18 +646,38 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm, static int set_sched_resources(struct device_queue_manager *dqm) { + int i, mec; struct scheduling_resources res; - unsigned int queue_num, queue_mask; BUG_ON(!dqm); pr_debug("kfd: In func %s\n", __func__); - queue_num = get_pipes_num_cpsch() * QUEUES_PER_PIPE; - queue_mask = (1 << queue_num) - 1; res.vmid_mask = (1 << VMID_PER_DEVICE) - 1; res.vmid_mask <<= KFD_VMID_START_OFFSET; - res.queue_mask = queue_mask << (get_first_pipe(dqm) * QUEUES_PER_PIPE); + + res.queue_mask = 0; + for (i = 0; i < KGD_MAX_QUEUES; ++i) { + mec = (i / dqm->dev->shared_resources.num_queue_per_pipe) + / dqm->dev->shared_resources.num_pipe_per_mec; + + if (!test_bit(i, dqm->dev->shared_resources.queue_bitmap)) + continue; + + /* only acquire queues from the first MEC */ + if (mec > 0) + continue; + + /* This situation may be hit in the future if a new HW + * generation exposes more than 64 queues. If so, the + * definition of res.queue_mask needs updating */ + if (WARN_ON(i > (sizeof(res.queue_mask)*8))) { + pr_err("Invalid queue enabled by amdgpu: %d\n", i); + break; + } + + res.queue_mask |= (1ull << i); + } res.gws_mask = res.oac_mask = res.gds_heap_base = res.gds_heap_size = 0; @@ -705,7 +696,7 @@ static int initialize_cpsch(struct device_queue_manager *dqm) BUG_ON(!dqm); pr_debug("kfd: In func %s num of pipes: %d\n", - __func__, get_pipes_num_cpsch()); + __func__, get_pipes_per_mec(dqm)); mutex_init(&dqm->lock); INIT_LIST_HEAD(&dqm->queues); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h index a625b9137da2..66b9615bc3c1 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h @@ -30,8 +30,6 @@ #include "kfd_mqd_manager.h" #define QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS (500) -#define QUEUES_PER_PIPE (8) -#define PIPE_PER_ME_CP_SCHEDULING (3) #define CIK_VMID_NUM (8) #define KFD_VMID_START_OFFSET (8) #define VMID_PER_DEVICE CIK_VMID_NUM @@ -182,10 +180,10 @@ void device_queue_manager_init_cik(struct device_queue_manager_asic_ops *ops); void device_queue_manager_init_vi(struct device_queue_manager_asic_ops *ops); void program_sh_mem_settings(struct device_queue_manager *dqm, struct qcm_process_device *qpd); -int init_pipelines(struct device_queue_manager *dqm, - unsigned int pipes_num, unsigned int first_pipe); -unsigned int get_first_pipe(struct device_queue_manager *dqm); -unsigned int get_pipes_num(struct device_queue_manager *dqm); +unsigned int get_mec_num(struct device_queue_manager *dqm); +unsigned int get_queues_num(struct device_queue_manager *dqm); +unsigned int get_queues_per_pipe(struct device_queue_manager *dqm); +unsigned int get_pipes_per_mec(struct device_queue_manager *dqm); static inline unsigned int get_sh_mem_bases_32(struct kfd_process_device *pdd) { diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c index c6f435aa803f..48dc0561b402 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c @@ -151,5 +151,5 @@ static void init_sdma_vm(struct device_queue_manager *dqm, struct queue *q, static int initialize_cpsch_cik(struct device_queue_manager *dqm) { - return init_pipelines(dqm, get_pipes_num(dqm), get_first_pipe(dqm)); + return 0; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c index ca8c09326b31..7131998848d7 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c @@ -65,8 +65,7 @@ static void pm_calc_rlib_size(struct packet_manager *pm, /* check if there is over subscription*/ *over_subscription = false; - if ((process_count > 1) || - queue_count > PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE) { + if ((process_count > 1) || queue_count > get_queues_num(pm->dqm)) { *over_subscription = true; pr_debug("kfd: over subscribed runlist\n"); } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index e1fb40b84c72..32cdf2b483db 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -209,7 +209,7 @@ int pqm_create_queue(struct process_queue_manager *pqm, /* check if there is over subscription */ if ((sched_policy == KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION) && ((dev->dqm->processes_count >= VMID_PER_DEVICE) || - (dev->dqm->queue_count >= PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE))) { + (dev->dqm->queue_count >= get_queues_num(dev->dqm)))) { pr_err("kfd: over-subscription is not allowed in radeon_kfd.sched_policy == 1\n"); retval = -EPERM; goto err_create_queue; |
