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drm/amdkfd: Move the control stack on GFX10 to userspace buffer

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The GFX10 does not require the control stack to be right after mqd
buffer any more, so move it back to usersapce allocated CSWR buffer.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yong Zhao 2019-09-25 14:07:26 -04:00 committed by Alex Deucher
parent 3a0c342392
commit 22471a5832
1 changed files with 4 additions and 33 deletions
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37
drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
View file

@ -69,35 +69,13 @@ static void update_cu_mask(struct mqd_manager *mm, void *mqd,
static struct kfd_mem_obj *allocate_mqd(struct kfd_dev *kfd,
struct queue_properties *q)
{
int retval;
struct kfd_mem_obj *mqd_mem_obj = NULL;
struct kfd_mem_obj *mqd_mem_obj;
/* From V9, for CWSR, the control stack is located on the next page
* boundary after the mqd, we will use the gtt allocation function
* instead of sub-allocation function.
*/
if (kfd->cwsr_enabled && (q->type == KFD_QUEUE_TYPE_COMPUTE)) {
mqd_mem_obj = kzalloc(sizeof(struct kfd_mem_obj), GFP_NOIO);
if (!mqd_mem_obj)
return NULL;
retval = amdgpu_amdkfd_alloc_gtt_mem(kfd->kgd,
ALIGN(q->ctl_stack_size, PAGE_SIZE) +
ALIGN(sizeof(struct v10_compute_mqd), PAGE_SIZE),
&(mqd_mem_obj->gtt_mem),
&(mqd_mem_obj->gpu_addr),
(void *)&(mqd_mem_obj->cpu_ptr), true);
} else {
retval = kfd_gtt_sa_allocate(kfd, sizeof(struct v10_compute_mqd),
&mqd_mem_obj);
}
if (retval) {
kfree(mqd_mem_obj);
if (kfd_gtt_sa_allocate(kfd, sizeof(struct v10_compute_mqd),
&mqd_mem_obj))
return NULL;
}
return mqd_mem_obj;
}
static void init_mqd(struct mqd_manager *mm, void **mqd,
@ -250,14 +228,7 @@ static int destroy_mqd(struct mqd_manager *mm, void *mqd,
static void free_mqd(struct mqd_manager *mm, void *mqd,
struct kfd_mem_obj *mqd_mem_obj)
{
struct kfd_dev *kfd = mm->dev;
if (mqd_mem_obj->gtt_mem) {
amdgpu_amdkfd_free_gtt_mem(kfd->kgd, mqd_mem_obj->gtt_mem);
kfree(mqd_mem_obj);
} else {
kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
}
kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
}
static bool is_occupied(struct mqd_manager *mm, void *mqd,