mirror of https://gitee.com/openkylin/linux.git
235 lines
6.4 KiB
C
235 lines
6.4 KiB
C
/*
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* Copyright 2009 VMware, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Michel Dänzer
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*/
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#include <drm/drmP.h>
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#include <drm/radeon_drm.h>
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#include "radeon_reg.h"
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#include "radeon.h"
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/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
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void radeon_test_moves(struct radeon_device *rdev)
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{
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struct radeon_bo *vram_obj = NULL;
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struct radeon_bo **gtt_obj = NULL;
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struct radeon_fence *fence = NULL;
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uint64_t gtt_addr, vram_addr;
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unsigned i, n, size;
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int r;
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size = 1024 * 1024;
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/* Number of tests =
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* (Total GTT - IB pool - writeback page - ring buffers) / test size
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*/
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n = rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - rdev->cp.ring_size;
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if (rdev->wb.wb_obj)
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n -= RADEON_GPU_PAGE_SIZE;
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if (rdev->ih.ring_obj)
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n -= rdev->ih.ring_size;
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n /= size;
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gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
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if (!gtt_obj) {
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DRM_ERROR("Failed to allocate %d pointers\n", n);
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r = 1;
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goto out_cleanup;
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}
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r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
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&vram_obj);
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if (r) {
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DRM_ERROR("Failed to create VRAM object\n");
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goto out_cleanup;
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}
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r = radeon_bo_reserve(vram_obj, false);
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if (unlikely(r != 0))
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goto out_cleanup;
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r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
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if (r) {
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DRM_ERROR("Failed to pin VRAM object\n");
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goto out_cleanup;
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}
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for (i = 0; i < n; i++) {
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void *gtt_map, *vram_map;
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void **gtt_start, **gtt_end;
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void **vram_start, **vram_end;
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r = radeon_bo_create(rdev, size, PAGE_SIZE, true,
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RADEON_GEM_DOMAIN_GTT, gtt_obj + i);
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if (r) {
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DRM_ERROR("Failed to create GTT object %d\n", i);
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goto out_cleanup;
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}
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r = radeon_bo_reserve(gtt_obj[i], false);
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if (unlikely(r != 0))
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goto out_cleanup;
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r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr);
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if (r) {
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DRM_ERROR("Failed to pin GTT object %d\n", i);
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goto out_cleanup;
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}
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r = radeon_bo_kmap(gtt_obj[i], >t_map);
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if (r) {
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DRM_ERROR("Failed to map GTT object %d\n", i);
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goto out_cleanup;
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}
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for (gtt_start = gtt_map, gtt_end = gtt_map + size;
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gtt_start < gtt_end;
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gtt_start++)
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*gtt_start = gtt_start;
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radeon_bo_kunmap(gtt_obj[i]);
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r = radeon_fence_create(rdev, &fence);
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if (r) {
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DRM_ERROR("Failed to create GTT->VRAM fence %d\n", i);
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goto out_cleanup;
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}
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r = radeon_copy(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, fence);
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if (r) {
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DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
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goto out_cleanup;
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}
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r = radeon_fence_wait(fence, false);
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if (r) {
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DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
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goto out_cleanup;
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}
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radeon_fence_unref(&fence);
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r = radeon_bo_kmap(vram_obj, &vram_map);
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if (r) {
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DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
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goto out_cleanup;
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}
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for (gtt_start = gtt_map, gtt_end = gtt_map + size,
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vram_start = vram_map, vram_end = vram_map + size;
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vram_start < vram_end;
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gtt_start++, vram_start++) {
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if (*vram_start != gtt_start) {
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DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
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"expected 0x%p (GTT/VRAM offset "
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"0x%16llx/0x%16llx)\n",
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i, *vram_start, gtt_start,
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(unsigned long long)
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(gtt_addr - rdev->mc.gtt_start +
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(void*)gtt_start - gtt_map),
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(unsigned long long)
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(vram_addr - rdev->mc.vram_start +
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(void*)gtt_start - gtt_map));
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radeon_bo_kunmap(vram_obj);
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goto out_cleanup;
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}
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*vram_start = vram_start;
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}
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radeon_bo_kunmap(vram_obj);
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r = radeon_fence_create(rdev, &fence);
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if (r) {
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DRM_ERROR("Failed to create VRAM->GTT fence %d\n", i);
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goto out_cleanup;
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}
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r = radeon_copy(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, fence);
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if (r) {
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DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
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goto out_cleanup;
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}
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r = radeon_fence_wait(fence, false);
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if (r) {
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DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
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goto out_cleanup;
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}
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radeon_fence_unref(&fence);
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r = radeon_bo_kmap(gtt_obj[i], >t_map);
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if (r) {
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DRM_ERROR("Failed to map GTT object after copy %d\n", i);
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goto out_cleanup;
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}
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for (gtt_start = gtt_map, gtt_end = gtt_map + size,
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vram_start = vram_map, vram_end = vram_map + size;
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gtt_start < gtt_end;
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gtt_start++, vram_start++) {
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if (*gtt_start != vram_start) {
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DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
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"expected 0x%p (VRAM/GTT offset "
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"0x%16llx/0x%16llx)\n",
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i, *gtt_start, vram_start,
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(unsigned long long)
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(vram_addr - rdev->mc.vram_start +
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(void*)vram_start - vram_map),
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(unsigned long long)
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(gtt_addr - rdev->mc.gtt_start +
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(void*)vram_start - vram_map));
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radeon_bo_kunmap(gtt_obj[i]);
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goto out_cleanup;
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}
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}
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radeon_bo_kunmap(gtt_obj[i]);
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DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
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gtt_addr - rdev->mc.gtt_start);
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}
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out_cleanup:
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if (vram_obj) {
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if (radeon_bo_is_reserved(vram_obj)) {
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radeon_bo_unpin(vram_obj);
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radeon_bo_unreserve(vram_obj);
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}
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radeon_bo_unref(&vram_obj);
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}
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if (gtt_obj) {
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for (i = 0; i < n; i++) {
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if (gtt_obj[i]) {
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if (radeon_bo_is_reserved(gtt_obj[i])) {
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radeon_bo_unpin(gtt_obj[i]);
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radeon_bo_unreserve(gtt_obj[i]);
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}
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radeon_bo_unref(>t_obj[i]);
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}
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}
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kfree(gtt_obj);
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}
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if (fence) {
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radeon_fence_unref(&fence);
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}
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if (r) {
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printk(KERN_WARNING "Error while testing BO move.\n");
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}
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}
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