blob: bad55719a7acceaa4a9b4a26936110dec8e53bd1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
// SPDX-License-Identifier: MIT
/*
* Copyright(c) 2023 Intel Corporation.
*/
#include "gem/i915_gem_internal.h"
#include "gt/intel_context.h"
#include "i915_drv.h"
#include "intel_pxp_cmd_interface_43.h"
#include "intel_pxp_gsccs.h"
#include "intel_pxp_types.h"
static void
gsccs_destroy_execution_resource(struct intel_pxp *pxp)
{
struct gsccs_session_resources *exec_res = &pxp->gsccs_res;
if (exec_res->ce)
intel_context_put(exec_res->ce);
memset(exec_res, 0, sizeof(*exec_res));
}
static int
gsccs_allocate_execution_resource(struct intel_pxp *pxp)
{
struct intel_gt *gt = pxp->ctrl_gt;
struct gsccs_session_resources *exec_res = &pxp->gsccs_res;
struct intel_engine_cs *engine = gt->engine[GSC0];
struct intel_context *ce;
/*
* First, ensure the GSC engine is present.
* NOTE: Backend would only be called with the correct gt.
*/
if (!engine)
return -ENODEV;
/* Finally, create an intel_context to be used during the submission */
ce = intel_context_create(engine);
if (IS_ERR(ce)) {
drm_err(>->i915->drm, "Failed creating gsccs backend ctx\n");
return PTR_ERR(ce);
}
i915_vm_put(ce->vm);
ce->vm = i915_vm_get(pxp->ctrl_gt->vm);
exec_res->ce = ce;
return 0;
}
void intel_pxp_gsccs_fini(struct intel_pxp *pxp)
{
gsccs_destroy_execution_resource(pxp);
}
int intel_pxp_gsccs_init(struct intel_pxp *pxp)
{
return gsccs_allocate_execution_resource(pxp);
}
|
