| // SPDX-License-Identifier: MIT |
| /* |
| * Copyright © 2019 Intel Corporation |
| */ |
| |
| #include "i915_gem_object_blt.h" |
| |
| #include "i915_gem_clflush.h" |
| #include "intel_drv.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 drm_i915_private *i915 = to_i915(obj->base.dev); |
| struct i915_gem_context *ctx = ce->gem_context; |
| struct i915_address_space *vm = ctx->vm ?: &i915->ggtt.vm; |
| struct i915_request *rq; |
| struct i915_vma *vma; |
| int err; |
| |
| /* XXX: ce->vm please */ |
| vma = i915_vma_instance(obj, 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 |