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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// SPDX-License-Identifier: MIT
/*
* Copyright © 2019 Intel Corporation
*/
#include "i915_drv.h"
#include "i915_gem_clflush.h"
#include "i915_gem_object_blt.h"
int intel_emit_vma_fill_blt(struct i915_request *rq,
struct i915_vma *vma,
u32 value)
{
u32 *cs;
cs = intel_ring_begin(rq, 8);
if (IS_ERR(cs))
return PTR_ERR(cs);
if (INTEL_GEN(rq->i915) >= 8) {
*cs++ = XY_COLOR_BLT_CMD | BLT_WRITE_RGBA | (7 - 2);
*cs++ = BLT_DEPTH_32 | BLT_ROP_COLOR_COPY | PAGE_SIZE;
*cs++ = 0;
*cs++ = vma->size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4;
*cs++ = lower_32_bits(vma->node.start);
*cs++ = upper_32_bits(vma->node.start);
*cs++ = value;
*cs++ = MI_NOOP;
} else {
*cs++ = XY_COLOR_BLT_CMD | BLT_WRITE_RGBA | (6 - 2);
*cs++ = BLT_DEPTH_32 | BLT_ROP_COLOR_COPY | PAGE_SIZE;
*cs++ = 0;
*cs++ = vma->size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4;
*cs++ = vma->node.start;
*cs++ = value;
*cs++ = MI_NOOP;
*cs++ = MI_NOOP;
}
intel_ring_advance(rq, cs);
return 0;
}
int i915_gem_object_fill_blt(struct drm_i915_gem_object *obj,
struct intel_context *ce,
u32 value)
{
struct i915_request *rq;
struct i915_vma *vma;
int err;
vma = i915_vma_instance(obj, ce->vm, NULL);
if (IS_ERR(vma))
return PTR_ERR(vma);
err = i915_vma_pin(vma, 0, 0, PIN_USER);
if (unlikely(err))
return err;
if (obj->cache_dirty & ~obj->cache_coherent) {
i915_gem_object_lock(obj);
i915_gem_clflush_object(obj, 0);
i915_gem_object_unlock(obj);
}
rq = i915_request_create(ce);
if (IS_ERR(rq)) {
err = PTR_ERR(rq);
goto out_unpin;
}
err = i915_request_await_object(rq, obj, true);
if (unlikely(err))
goto out_request;
if (ce->engine->emit_init_breadcrumb) {
err = ce->engine->emit_init_breadcrumb(rq);
if (unlikely(err))
goto out_request;
}
i915_vma_lock(vma);
err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE);
i915_vma_unlock(vma);
if (unlikely(err))
goto out_request;
err = intel_emit_vma_fill_blt(rq, vma, value);
out_request:
if (unlikely(err))
i915_request_skip(rq, err);
i915_request_add(rq);
out_unpin:
i915_vma_unpin(vma);
return err;
}
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftests/i915_gem_object_blt.c"
#endif
|
