2 * SPDX-License-Identifier: MIT
4 * Copyright © 2018 Intel Corporation
7 #include "igt_gem_utils.h"
9 #include "gem/i915_gem_context.h"
10 #include "gem/i915_gem_pm.h"
11 #include "gt/intel_context.h"
15 #include "i915_request.h"
18 igt_request_alloc(struct i915_gem_context *ctx, struct intel_engine_cs *engine)
20 struct intel_context *ce;
21 struct i915_request *rq;
24 * Pinning the contexts may generate requests in order to acquire
25 * GGTT space, so do this first before we reserve a seqno for
28 ce = i915_gem_context_get_engine(ctx, engine->legacy_idx);
32 rq = intel_context_create_request(ce);
33 intel_context_put(ce);
39 igt_emit_store_dw(struct i915_vma *vma,
44 struct drm_i915_gem_object *obj;
45 const int gen = INTEL_GEN(vma->vm->i915);
46 unsigned long n, size;
50 size = (4 * count + 1) * sizeof(u32);
51 size = round_up(size, PAGE_SIZE);
52 obj = i915_gem_object_create_internal(vma->vm->i915, size);
56 cmd = i915_gem_object_pin_map(obj, I915_MAP_WC);
62 GEM_BUG_ON(offset + (count - 1) * PAGE_SIZE > vma->node.size);
63 offset += vma->node.start;
65 for (n = 0; n < count; n++) {
67 *cmd++ = MI_STORE_DWORD_IMM_GEN4;
68 *cmd++ = lower_32_bits(offset);
69 *cmd++ = upper_32_bits(offset);
71 } else if (gen >= 4) {
72 *cmd++ = MI_STORE_DWORD_IMM_GEN4 |
73 (gen < 6 ? MI_USE_GGTT : 0);
78 *cmd++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
84 *cmd = MI_BATCH_BUFFER_END;
85 i915_gem_object_unpin_map(obj);
87 vma = i915_vma_instance(obj, vma->vm, NULL);
93 err = i915_vma_pin(vma, 0, 0, PIN_USER);
100 i915_gem_object_put(obj);
104 int igt_gpu_fill_dw(struct i915_vma *vma,
105 struct i915_gem_context *ctx,
106 struct intel_engine_cs *engine,
111 struct i915_address_space *vm = ctx->vm ?: &engine->gt->ggtt->vm;
112 struct i915_request *rq;
113 struct i915_vma *batch;
117 GEM_BUG_ON(vma->size > vm->total);
118 GEM_BUG_ON(!intel_engine_can_store_dword(engine));
119 GEM_BUG_ON(!i915_vma_is_pinned(vma));
121 batch = igt_emit_store_dw(vma, offset, count, val);
123 return PTR_ERR(batch);
125 rq = igt_request_alloc(ctx, engine);
132 if (INTEL_GEN(vm->i915) <= 5)
133 flags |= I915_DISPATCH_SECURE;
135 err = engine->emit_bb_start(rq,
136 batch->node.start, batch->node.size,
141 i915_vma_lock(batch);
142 err = i915_request_await_object(rq, batch->obj, false);
144 err = i915_vma_move_to_active(batch, rq, 0);
145 i915_vma_unlock(batch);
150 err = i915_request_await_object(rq, vma->obj, true);
152 err = i915_vma_move_to_active(vma, rq, EXEC_OBJECT_WRITE);
153 i915_vma_unlock(vma);
157 i915_request_add(rq);
159 i915_vma_unpin(batch);
160 i915_vma_close(batch);
166 i915_request_skip(rq, err);
168 i915_request_add(rq);
170 i915_vma_unpin(batch);