On Tue, Mar 10, 2015 at 9:21 AM, Oded Gabbay <oded.gabbay@xxxxxxx> wrote:
> From: Ben Goz <ben.goz@xxxxxxx>
>
> This patch adds a missing destruction of mqd, when destroying a kernel queue.
> Without the destruction, there is a memory leakage when repeatedly creating and
> destroying kernel queues.
>
> Signed-off-by: Ben Goz <ben.goz@xxxxxxx>
> Signed-off-by: Oded Gabbay <oded.gabbay@xxxxxxx>
For the series:
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c | 22 +++++++++++++---------
> 1 file changed, 13 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
> index e415a2a..c7d298e 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
> @@ -44,7 +44,7 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev,
> BUG_ON(!kq || !dev);
> BUG_ON(type != KFD_QUEUE_TYPE_DIQ && type != KFD_QUEUE_TYPE_HIQ);
>
> - pr_debug("kfd: In func %s initializing queue type %d size %d\n",
> + pr_debug("amdkfd: In func %s initializing queue type %d size %d\n",
> __func__, KFD_QUEUE_TYPE_HIQ, queue_size);
>
> nop.opcode = IT_NOP;
> @@ -69,12 +69,16 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev,
>
> prop.doorbell_ptr = kfd_get_kernel_doorbell(dev, &prop.doorbell_off);
>
> - if (prop.doorbell_ptr == NULL)
> + if (prop.doorbell_ptr == NULL) {
> + pr_err("amdkfd: error init doorbell");
> goto err_get_kernel_doorbell;
> + }
>
> retval = kfd_gtt_sa_allocate(dev, queue_size, &kq->pq);
> - if (retval != 0)
> + if (retval != 0) {
> + pr_err("amdkfd: error init pq queues size (%d)\n", queue_size);
> goto err_pq_allocate_vidmem;
> + }
>
> kq->pq_kernel_addr = kq->pq->cpu_ptr;
> kq->pq_gpu_addr = kq->pq->gpu_addr;
> @@ -165,10 +169,8 @@ err_rptr_allocate_vidmem:
> err_eop_allocate_vidmem:
> kfd_gtt_sa_free(dev, kq->pq);
> err_pq_allocate_vidmem:
> - pr_err("kfd: error init pq\n");
> kfd_release_kernel_doorbell(dev, prop.doorbell_ptr);
> err_get_kernel_doorbell:
> - pr_err("kfd: error init doorbell");
> return false;
>
> }
> @@ -187,6 +189,8 @@ static void uninitialize(struct kernel_queue *kq)
> else if (kq->queue->properties.type == KFD_QUEUE_TYPE_DIQ)
> kfd_gtt_sa_free(kq->dev, kq->fence_mem_obj);
>
> + kq->mqd->uninit_mqd(kq->mqd, kq->queue->mqd, kq->queue->mqd_mem_obj);
> +
> kfd_gtt_sa_free(kq->dev, kq->rptr_mem);
> kfd_gtt_sa_free(kq->dev, kq->wptr_mem);
> kq->ops_asic_specific.uninitialize(kq);
> @@ -211,7 +215,7 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
> queue_address = (unsigned int *)kq->pq_kernel_addr;
> queue_size_dwords = kq->queue->properties.queue_size / sizeof(uint32_t);
>
> - pr_debug("kfd: In func %s\nrptr: %d\nwptr: %d\nqueue_address 0x%p\n",
> + pr_debug("amdkfd: In func %s\nrptr: %d\nwptr: %d\nqueue_address 0x%p\n",
> __func__, rptr, wptr, queue_address);
>
> available_size = (rptr - 1 - wptr + queue_size_dwords) %
> @@ -296,7 +300,7 @@ struct kernel_queue *kernel_queue_init(struct kfd_dev *dev,
> }
>
> if (kq->ops.initialize(kq, dev, type, KFD_KERNEL_QUEUE_SIZE) == false) {
> - pr_err("kfd: failed to init kernel queue\n");
> + pr_err("amdkfd: failed to init kernel queue\n");
> kfree(kq);
> return NULL;
> }
> @@ -319,7 +323,7 @@ static __attribute__((unused)) void test_kq(struct kfd_dev *dev)
>
> BUG_ON(!dev);
>
> - pr_err("kfd: starting kernel queue test\n");
> + pr_err("amdkfd: starting kernel queue test\n");
>
> kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_HIQ);
> BUG_ON(!kq);
> @@ -330,7 +334,7 @@ static __attribute__((unused)) void test_kq(struct kfd_dev *dev)
> buffer[i] = kq->nop_packet;
> kq->ops.submit_packet(kq);
>
> - pr_err("kfd: ending kernel queue test\n");
> + pr_err("amdkfd: ending kernel queue test\n");
> }
>
>
> --
> 1.9.1
>
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