From: Oak Zeng Date: Thu, 1 Nov 2018 15:06:25 +0000 (-0400) Subject: drm/amdkfd: Use 64 bit sdma_bitmap X-Git-Tag: v5.3-rc1~81^2~25^2~53 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=cb77ee7cae96c4db5d7dfe127d3e0cf9d6056875;p=linux.git drm/amdkfd: Use 64 bit sdma_bitmap Maximumly support 64 sdma queues Signed-off-by: Oak Zeng Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- 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 c6c9530e704e..0de8cf45c130 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -891,7 +891,7 @@ static int initialize_nocpsch(struct device_queue_manager *dqm) } dqm->vmid_bitmap = (1 << dqm->dev->vm_info.vmid_num_kfd) - 1; - dqm->sdma_bitmap = (1 << get_num_sdma_queues(dqm)) - 1; + dqm->sdma_bitmap = (1ULL << get_num_sdma_queues(dqm)) - 1; return 0; } @@ -929,8 +929,8 @@ static int allocate_sdma_queue(struct device_queue_manager *dqm, if (dqm->sdma_bitmap == 0) return -ENOMEM; - bit = ffs(dqm->sdma_bitmap) - 1; - dqm->sdma_bitmap &= ~(1 << bit); + bit = __ffs64(dqm->sdma_bitmap); + dqm->sdma_bitmap &= ~(1ULL << bit); *sdma_queue_id = bit; return 0; @@ -941,7 +941,7 @@ static void deallocate_sdma_queue(struct device_queue_manager *dqm, { if (sdma_queue_id >= get_num_sdma_queues(dqm)) return; - dqm->sdma_bitmap |= (1 << sdma_queue_id); + dqm->sdma_bitmap |= (1ULL << sdma_queue_id); } static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm, @@ -1047,7 +1047,7 @@ static int initialize_cpsch(struct device_queue_manager *dqm) dqm->queue_count = dqm->processes_count = 0; dqm->sdma_queue_count = 0; dqm->active_runlist = false; - dqm->sdma_bitmap = (1 << get_num_sdma_queues(dqm)) - 1; + dqm->sdma_bitmap = (1ULL << get_num_sdma_queues(dqm)) - 1; INIT_WORK(&dqm->hw_exception_work, kfd_process_hw_exception); 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 70e38a2e23b9..2770f3ece89f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h @@ -188,7 +188,7 @@ struct device_queue_manager { unsigned int total_queue_count; unsigned int next_pipe_to_allocate; unsigned int *allocated_queues; - unsigned int sdma_bitmap; + uint64_t sdma_bitmap; unsigned int vmid_bitmap; uint64_t pipelines_addr; struct kfd_mem_obj *pipeline_mem;