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radv/amdgpu: add a function to query permitted context priorities

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The only way I know of is to create a context to verify if a priority
is permitted or not.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37076>
This commit is contained in:
Samuel Pitoiset 2025-08-26 19:45:27 +02:00 • committed by Marge Bot
parent 57deff5658
commit 43cba046e6
2 changed files with 22 additions and 0 deletions
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2
src/amd/vulkan/radv_radeon_winsys.h
View file

@ -269,6 +269,8 @@ struct radeon_winsys {
VkResult (*ctx_create)(struct radeon_winsys *ws, enum radeon_ctx_priority priority, struct radeon_winsys_ctx **ctx);
void (*ctx_destroy)(struct radeon_winsys_ctx *ctx);
VkResult (*ctx_is_priority_permitted)(struct radeon_winsys *_ws, enum radeon_ctx_priority priority);
bool (*ctx_wait_idle)(struct radeon_winsys_ctx *ctx, enum amd_ip_type amd_ip_type, int ring_index);
int (*ctx_set_pstate)(struct radeon_winsys_ctx *ctx, uint32_t pstate);

20
src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c
View file

@ -1640,6 +1640,25 @@ radv_amdgpu_ctx_destroy(struct radeon_winsys_ctx *rwctx)
FREE(ctx);
}
static VkResult
radv_amdgpu_ctx_is_priority_permitted(struct radeon_winsys *_ws, enum radeon_ctx_priority priority)
{
struct radv_amdgpu_winsys *ws = radv_amdgpu_winsys(_ws);
uint32_t amdgpu_priority = radv_to_amdgpu_priority(priority);
uint32_t ctx_handle;
int r;
r = ac_drm_cs_ctx_create2(ws->dev, amdgpu_priority, &ctx_handle);
if (r && r == -EACCES) {
return VK_ERROR_NOT_PERMITTED;
} else if (r) {
return VK_ERROR_OUT_OF_HOST_MEMORY;
}
ac_drm_cs_ctx_free(ws->dev, ctx_handle);
return VK_SUCCESS;
}
static uint32_t
radv_amdgpu_ctx_queue_syncobj(struct radv_amdgpu_ctx *ctx, unsigned ip, unsigned ring)
{
@ -1955,6 +1974,7 @@ radv_amdgpu_cs_init_functions(struct radv_amdgpu_winsys *ws)
{
ws->base.ctx_create = radv_amdgpu_ctx_create;
ws->base.ctx_destroy = radv_amdgpu_ctx_destroy;
ws->base.ctx_is_priority_permitted = radv_amdgpu_ctx_is_priority_permitted;
ws->base.ctx_wait_idle = radv_amdgpu_ctx_wait_idle;
ws->base.ctx_set_pstate = radv_amdgpu_ctx_set_pstate;
ws->base.cs_domain = radv_amdgpu_cs_domain;