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drm/amdkfd: Enable GFX11 usermode queue oversubscription

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Starting with GFX11, MES requires wptr BOs to be GTT allocated/mapped to
GART for usermode queues in order to support oversubscription. In the
case that work is submitted to an unmapped queue, MES must have a GART
wptr address to determine whether the queue should be mapped.

This change is accompanied with changes in MES and is applicable for
MES_API_VERSION >= 2.

v3:
- Use amdgpu_vm_bo_lookup_mapping for wptr_bo mapping lookup
- Move wptr_bo refcount increment to amdgpu_amdkfd_map_gtt_bo_to_gart
- Remove list_del_init from amdgpu_amdkfd_map_gtt_bo_to_gart
- Cleanup/fix create_queue wptr_bo error handling
v4:
- Add MES version shift/mask defines to amdgpu_mes.h
- Change version check from MES_VERSION to MES_API_VERSION
- Add check in kfd_ioctl_create_queue before wptr bo pin/GART map to
ensure bo is a single page.

Signed-off-by: Graham Sider <Graham.Sider@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Graham Sider
2022-05-11 12:33:35 -04:00
committed by Alex Deucher
parent ff83e6e7ab
commit e77a541f5d
8 changed files with 125 additions and 8 deletions
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9
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
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@@ -177,6 +177,7 @@ static int add_queue_mes(struct device_queue_manager *dqm, struct queue *q,
struct kfd_process_device *pdd = qpd_to_pdd(qpd);
struct mes_add_queue_input queue_input;
int r, queue_type;
uint64_t wptr_addr_off;
if (dqm->is_hws_hang)
return -EIO;
@@ -196,7 +197,13 @@ static int add_queue_mes(struct device_queue_manager *dqm, struct queue *q,
AMDGPU_MES_PRIORITY_LEVEL_NORMAL;
queue_input.doorbell_offset = q->properties.doorbell_off;
queue_input.mqd_addr = q->gart_mqd_addr;
queue_input.wptr_addr = (uint64_t)q->properties.write_ptr;
if (q->wptr_bo) {
wptr_addr_off = (uint64_t)q->properties.write_ptr - (uint64_t)q->wptr_bo->kfd_bo->va;
queue_input.wptr_addr = ((uint64_t)q->wptr_bo->tbo.resource->start << PAGE_SHIFT) + wptr_addr_off;
} else
queue_input.wptr_addr = (uint64_t)q->properties.write_ptr;
queue_input.paging = false;
queue_input.tba_addr = qpd->tba_addr;
queue_input.tma_addr = qpd->tma_addr;