diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c index 555af4514237..935071410724 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c @@ -25,6 +25,7 @@ #include <linux/mutex.h> #include <linux/slab.h> #include <linux/printk.h> +#include <linux/sched.h> #include "kfd_kernel_queue.h" #include "kfd_priv.h" #include "kfd_device_queue_manager.h" @@ -66,8 +67,7 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev, if (kq->mqd == NULL) return false; - prop.doorbell_ptr = - (uint32_t *)kfd_get_kernel_doorbell(dev, &prop.doorbell_off); + prop.doorbell_ptr = kfd_get_kernel_doorbell(dev, &prop.doorbell_off); if (prop.doorbell_ptr == NULL) goto err_get_kernel_doorbell; @@ -172,7 +172,7 @@ err_rptr_allocate_vidmem: kfd2kgd->free_mem(dev->kgd, (struct kgd_mem *) kq->pq); err_pq_allocate_vidmem: pr_err("kfd: error init pq\n"); - kfd_release_kernel_doorbell(dev, (u32 *)prop.doorbell_ptr); + kfd_release_kernel_doorbell(dev, prop.doorbell_ptr); err_get_kernel_doorbell: pr_err("kfd: error init doorbell"); return false; @@ -195,7 +195,7 @@ static void uninitialize(struct kernel_queue *kq) kfd2kgd->free_mem(kq->dev->kgd, (struct kgd_mem *) kq->wptr_mem); kfd2kgd->free_mem(kq->dev->kgd, (struct kgd_mem *) kq->pq); kfd_release_kernel_doorbell(kq->dev, - (u32 *)kq->queue->properties.doorbell_ptr); + kq->queue->properties.doorbell_ptr); uninit_queue(kq->queue); } @@ -221,8 +221,14 @@ static int acquire_packet_buffer(struct kernel_queue *kq, queue_size_dwords; if (packet_size_in_dwords >= queue_size_dwords || - packet_size_in_dwords >= available_size) + packet_size_in_dwords >= available_size) { + /* + * make sure calling functions know + * acquire_packet_buffer() failed + */ + *buffer_ptr = NULL; return -ENOMEM; + } if (wptr + packet_size_in_dwords >= queue_size_dwords) { while (wptr > 0) { @@ -255,7 +261,7 @@ static void submit_packet(struct kernel_queue *kq) #endif *kq->wptr_kernel = kq->pending_wptr; - write_kernel_doorbell((u32 *)kq->queue->properties.doorbell_ptr, + write_kernel_doorbell(kq->queue->properties.doorbell_ptr, kq->pending_wptr); } @@ -275,7 +281,7 @@ static int sync_with_hw(struct kernel_queue *kq, unsigned long timeout_ms) *kq->wptr_kernel, *kq->rptr_kernel); return -ETIME; } - cpu_relax(); + schedule(); } return 0; @@ -321,7 +327,7 @@ void kernel_queue_uninit(struct kernel_queue *kq) kfree(kq); } -void test_kq(struct kfd_dev *dev) +static __attribute__((unused)) void test_kq(struct kfd_dev *dev) { struct kernel_queue *kq; uint32_t *buffer, i; |