// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
* Copyright 2009 VMware, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Michel Dänzer
*/
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "amdgpu_uvd.h"
#include "amdgpu_vce.h"
/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
static void amdgpu_do_test_moves(struct amdgpu_device *adev)
{
struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
struct amdgpu_bo *vram_obj = NULL;
struct amdgpu_bo **gtt_obj = NULL;
struct amdgpu_bo_param bp;
uint64_t gart_addr, vram_addr;
unsigned n, size;
int i, r;
size = 1024 * 1024;
/* Number of tests =
* (Total GTT - IB pool - writeback page - ring buffers) / test size
*/
n = adev->gmc.gart_size - AMDGPU_IB_POOL_SIZE*64*1024;
for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
if (adev->rings[i])
n -= adev->rings[i]->ring_size;
if (adev->wb.wb_obj)
n -= AMDGPU_GPU_PAGE_SIZE;
if (adev->irq.ih.ring_obj)
n -= adev->irq.ih.ring_size;
n /= size;
gtt_obj = kcalloc(n, sizeof(*gtt_obj), GFP_KERNEL);
if (!gtt_obj) {
DRM_ERROR("Failed to allocate %d pointers\n", n);
r = 1;
goto out_cleanup;
}
memset(&bp, 0, sizeof(bp));
bp.size = size;
bp.byte_align = PAGE_SIZE;
bp.domain = AMDGPU_GEM_DOMAIN_VRAM;
bp.flags = 0;
bp.type = ttm_bo_type_kernel;
bp.resv = NULL;
r = amdgpu_bo_create(adev, &bp, &vram_obj);
if (r) {
DRM_ERROR("Failed to create VRAM object\n");
goto out_cleanup;
}
r = amdgpu_bo_reserve(vram_obj, false);
if (unlikely(r != 0))
goto out_unref;
r = amdgpu_bo_pin(vram_obj, AMDGPU_GEM_DOMAIN_VRAM);
if (r) {
DRM_ERROR("Failed to pin VRAM object\n");
goto out_unres;
}
vram_addr = amdgpu_bo_gpu_offset(vram_obj);
for (i = 0; i < n; i++) {
void *gtt_map, *vram_map;
void **gart_start, **gart_end;
void **vram_start, **vram_end;
struct dma_fence *fence = NULL;
bp.domain = AMDGPU_GEM_DOMAIN_GTT;
r = amdgpu_bo_create(adev, &bp, gtt_obj + i);
if (r) {
DRM_ERROR("Failed to create GTT object %d\n", i);
goto out_lclean;
}
r = amdgpu_bo_reserve(gtt_obj[i], false);
if (unlikely(r != 0))
goto out_lclean_unref;
r = amdgpu_bo_pin(gtt_obj[i], AMDGPU_GEM_DOMAIN_GTT);
if (r) {
DRM_ERROR("Failed to pin GTT object %d\n", i);
goto out_lclean_unres;
}
r = amdgpu_ttm_alloc_gart(>t_obj[i]->tbo);
if (r) {
DRM_ERROR("%p bind failed\n", gtt_obj[i]);
goto out_lclean_unpin;
}
gart_addr = amdgpu_bo_gpu_offset(gtt_obj[i]);
r = amdgpu_bo_kmap(gtt_obj[i], >t_map);
if (r) {
DRM_ERROR("Failed to map GTT object %d\n", i);
goto out_lclean_unpin;
}
for (gart_start = gtt_map, gart_end = gtt_map + size;
gart_start < gart_end;
gart_start++)
*gart_start = gart_start;
amdgpu_bo_kunmap(gtt_obj[i]);
r = amdgpu_copy_buffer(ring, gart_addr, vram_addr,
size, NULL, &fence, false, false);
if (r) {
DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
goto out_lclean_unpin;
}
r = dma_fence_wait(fence, false);
if (r) {
DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
goto out_lclean_unpin;
}
dma_fence_put(fence);
r = amdgpu_bo_kmap(vram_obj, &vram_map);
if (r) {
DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
goto out_lclean_unpin;
}
for (gart_start = gtt_map, gart_end = gtt_map + size,
vram_start = vram_map, vram_end = vram_map + size;
vram_start < vram_end;
gart_start++, vram_start++) {
if (*vram_start != gart_start) {
DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
"expected 0x%p (GTT/VRAM offset "
"0x%16llx/0x%16llx)\n",
i, *vram_start, gart_start,
(unsigned long long)
(gart_addr - adev->gmc.gart_start +
(void*)gart_start - gtt_map),
(unsigned long long)
(vram_addr - adev->gmc.vram_start +
(void*)gart_start - gtt_map));
amdgpu_bo_kunmap(vram_obj);
goto out_lclean_unpin;
}
*vram_start = vram_start;
}
amdgpu_bo_kunmap(vram_obj);
r = amdgpu_copy_buffer(ring, vram_addr, gart_addr,
size, NULL, &fence, false, false);
if (r) {
DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
goto out_lclean_unpin;
}
r = dma_fence_wait(fence, false);
if (r) {
DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
goto out_lclean_unpin;
}
dma_fence_put(fence);
r = amdgpu_bo_kmap(gtt_obj[i], >t_map);
if (r) {
DRM_ERROR("Failed to map GTT object after copy %d\n", i);
goto out_lclean_unpin;
}
for (gart_start = gtt_map, gart_end = gtt_map + size,
vram_start = vram_map, vram_end = vram_map + size;
gart_start < gart_end;
gart_start++, vram_start++) {
if (*gart_start != vram_start) {
DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
"expected 0x%p (VRAM/GTT offset "
"0x%16llx/0x%16llx)\n",
i, *gart_start, vram_start,
(unsigned long long)
(vram_addr - adev->gmc.vram_start +
(void*)vram_start - vram_map),
(unsigned long long)
(gart_addr - adev->gmc.gart_start +
(void*)vram_start - vram_map));
amdgpu_bo_kunmap(gtt_obj[i]);
goto out_lclean_unpin;
}
}
amdgpu_bo_kunmap(gtt_obj[i]);
DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
gart_addr - adev->gmc.gart_start);
continue;
out_lclean_unpin:
amdgpu_bo_unpin(gtt_obj[i]);
out_lclean_unres:
amdgpu_bo_unreserve(gtt_obj[i]);
out_lclean_unref:
amdgpu_bo_unref(>t_obj[i]);
out_lclean:
for (--i; i >= 0; --i) {
amdgpu_bo_unpin(gtt_obj[i]);
amdgpu_bo_unreserve(gtt_obj[i]);
amdgpu_bo_unref(>t_obj[i]);
}
if (fence)
dma_fence_put(fence);
break;
}
amdgpu_bo_unpin(vram_obj);
out_unres:
amdgpu_bo_unreserve(vram_obj);
out_unref:
amdgpu_bo_unref(&vram_obj);
out_cleanup:
kfree(gtt_obj);
if (r) {
pr_warn("Error while testing BO move\n");
}
}
void amdgpu_test_moves(struct amdgpu_device *adev)
{
if (adev->mman.buffer_funcs)
amdgpu_do_test_moves(adev);
}