cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/radeon/radeon_test.c

/*
 * 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/drmP.h>
#include <drm/radeon_drm.h>
#include "radeon_reg.h"
#include "radeon.h"


#define RADEON_TEST_COPY_BLIT 1

#define RADEON_TEST_COPY_DMA  0


/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */

static void radeon_do_test_moves(struct radeon_device *rdev, int flag) { struct radeon_bo *vram_obj = NULL; struct radeon_bo **gtt_obj = NULL; uint64_t gtt_addr, vram_addr; unsigned n, size; int i, r, ring; switch (flag) { case RADEON_TEST_COPY_DMA: ring = radeon_copy_dma_ring_index(rdev); break; case RADEON_TEST_COPY_BLIT: ring = radeon_copy_blit_ring_index(rdev); break; default: DRM_ERROR("Unknown copy method\n"); return; } size = 1024 * 1024; /* Number of tests = * (Total GTT - IB pool - writeback page - ring buffers) / test size */ n = rdev->mc.gtt_size - rdev->gart_pin_size; n /= size; gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL); if (!gtt_obj) { DRM_ERROR("Failed to allocate %d pointers\n", n); r = 1; goto out_cleanup; } r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM, 0, NULL, NULL, &vram_obj); if (r) { DRM_ERROR("Failed to create VRAM object\n"); goto out_cleanup; } r = radeon_bo_reserve(vram_obj, false); if (unlikely(r != 0)) goto out_unref; r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr); if (r) { DRM_ERROR("Failed to pin VRAM object\n"); goto out_unres; } for (i = 0; i < n; i++) { void *gtt_map, *vram_map; void **gtt_start, **gtt_end; void **vram_start, **vram_end; struct radeon_fence *fence = NULL; r = radeon_bo_create(rdev, size, PAGE_SIZE, true, RADEON_GEM_DOMAIN_GTT, 0, NULL, NULL, gtt_obj + i); if (r) { DRM_ERROR("Failed to create GTT object %d\n", i); goto out_lclean; } r = radeon_bo_reserve(gtt_obj[i], false); if (unlikely(r != 0)) goto out_lclean_unref; r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, &gtt_addr); if (r) { DRM_ERROR("Failed to pin GTT object %d\n", i); goto out_lclean_unres; } r = radeon_bo_kmap(gtt_obj[i], &gtt_map); if (r) { DRM_ERROR("Failed to map GTT object %d\n", i); goto out_lclean_unpin; } for (gtt_start = gtt_map, gtt_end = gtt_map + size; gtt_start < gtt_end; gtt_start++) *gtt_start = gtt_start; radeon_bo_kunmap(gtt_obj[i]); if (ring == R600_RING_TYPE_DMA_INDEX) fence = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, vram_obj->tbo.resv); else fence = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, vram_obj->tbo.resv); if (IS_ERR(fence)) { DRM_ERROR("Failed GTT->VRAM copy %d\n", i); r = PTR_ERR(fence); goto out_lclean_unpin; } r = radeon_fence_wait(fence, false); if (r) { DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i); goto out_lclean_unpin; } radeon_fence_unref(&fence); r = radeon_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 (gtt_start = gtt_map, gtt_end = gtt_map + size, vram_start = vram_map, vram_end = vram_map + size; vram_start < vram_end; gtt_start++, vram_start++) { if (*vram_start != gtt_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, gtt_start, (unsigned long long) (gtt_addr - rdev->mc.gtt_start + (void*)gtt_start - gtt_map), (unsigned long long) (vram_addr - rdev->mc.vram_start + (void*)gtt_start - gtt_map)); radeon_bo_kunmap(vram_obj); goto out_lclean_unpin; } *vram_start = vram_start; } radeon_bo_kunmap(vram_obj); if (ring == R600_RING_TYPE_DMA_INDEX) fence = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, vram_obj->tbo.resv); else fence = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, vram_obj->tbo.resv); if (IS_ERR(fence)) { DRM_ERROR("Failed VRAM->GTT copy %d\n", i); r = PTR_ERR(fence); goto out_lclean_unpin; } r = radeon_fence_wait(fence, false); if (r) { DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i); goto out_lclean_unpin; } radeon_fence_unref(&fence); r = radeon_bo_kmap(gtt_obj[i], &gtt_map); if (r) { DRM_ERROR("Failed to map GTT object after copy %d\n", i); goto out_lclean_unpin; } for (gtt_start = gtt_map, gtt_end = gtt_map + size, vram_start = vram_map, vram_end = vram_map + size; gtt_start < gtt_end; gtt_start++, vram_start++) { if (*gtt_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, *gtt_start, vram_start, (unsigned long long) (vram_addr - rdev->mc.vram_start + (void*)vram_start - vram_map), (unsigned long long) (gtt_addr - rdev->mc.gtt_start + (void*)vram_start - vram_map)); radeon_bo_kunmap(gtt_obj[i]); goto out_lclean_unpin; } } radeon_bo_kunmap(gtt_obj[i]); DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n", gtt_addr - rdev->mc.gtt_start); continue; out_lclean_unpin: radeon_bo_unpin(gtt_obj[i]); out_lclean_unres: radeon_bo_unreserve(gtt_obj[i]); out_lclean_unref: radeon_bo_unref(&gtt_obj[i]); out_lclean: for (--i; i >= 0; --i) { radeon_bo_unpin(gtt_obj[i]); radeon_bo_unreserve(gtt_obj[i]); radeon_bo_unref(&gtt_obj[i]); } if (fence && !IS_ERR(fence)) radeon_fence_unref(&fence); break; } radeon_bo_unpin(vram_obj); out_unres: radeon_bo_unreserve(vram_obj); out_unref: radeon_bo_unref(&vram_obj); out_cleanup: kfree(gtt_obj); if (r) { printk(KERN_WARNING "Error while testing BO move.\n"); } }

Contributors

PersonTokensPropCommitsCommitProp
Michel Dänzer77771.88%425.00%
Alex Deucher978.97%425.00%
Maarten Lankhorst777.12%212.50%
Jérôme Glisse746.85%212.50%
Christian König322.96%16.25%
Ilija Hadzic201.85%16.25%
Dan Carpenter20.19%16.25%
Matt Turner20.19%16.25%
Total1081100.00%16100.00%


void radeon_test_moves(struct radeon_device *rdev) { if (rdev->asic->copy.dma) radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA); if (rdev->asic->copy.blit) radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher44100.00%1100.00%
Total44100.00%1100.00%


static int radeon_test_create_and_emit_fence(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_fence **fence) { uint32_t handle = ring->idx ^ 0xdeafbeef; int r; if (ring->idx == R600_RING_TYPE_UVD_INDEX) { r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL); if (r) { DRM_ERROR("Failed to get dummy create msg\n"); return r; } r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence); if (r) { DRM_ERROR("Failed to get dummy destroy msg\n"); return r; } } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX || ring->idx == TN_RING_TYPE_VCE2_INDEX) { r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL); if (r) { DRM_ERROR("Failed to get dummy create msg\n"); return r; } r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence); if (r) { DRM_ERROR("Failed to get dummy destroy msg\n"); return r; } } else { r = radeon_ring_lock(rdev, ring, 64); if (r) { DRM_ERROR("Failed to lock ring A %d\n", ring->idx); return r; } radeon_fence_emit(rdev, fence, ring->idx); radeon_ring_unlock_commit(rdev, ring, false); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Christian König23099.14%266.67%
Michel Dänzer20.86%133.33%
Total232100.00%3100.00%


void radeon_test_ring_sync(struct radeon_device *rdev, struct radeon_ring *ringA, struct radeon_ring *ringB) { struct radeon_fence *fence1 = NULL, *fence2 = NULL; struct radeon_semaphore *semaphore = NULL; int r; r = radeon_semaphore_create(rdev, &semaphore); if (r) { DRM_ERROR("Failed to create semaphore\n"); goto out_cleanup; } r = radeon_ring_lock(rdev, ringA, 64); if (r) { DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); goto out_cleanup; } radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); radeon_ring_unlock_commit(rdev, ringA, false); r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1); if (r) goto out_cleanup; r = radeon_ring_lock(rdev, ringA, 64); if (r) { DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); goto out_cleanup; } radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); radeon_ring_unlock_commit(rdev, ringA, false); r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2); if (r) goto out_cleanup; mdelay(1000); if (radeon_fence_signaled(fence1)) { DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n"); goto out_cleanup; } r = radeon_ring_lock(rdev, ringB, 64); if (r) { DRM_ERROR("Failed to lock ring B %p\n", ringB); goto out_cleanup; } radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); radeon_ring_unlock_commit(rdev, ringB, false); r = radeon_fence_wait(fence1, false); if (r) { DRM_ERROR("Failed to wait for sync fence 1\n"); goto out_cleanup; } mdelay(1000); if (radeon_fence_signaled(fence2)) { DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n"); goto out_cleanup; } r = radeon_ring_lock(rdev, ringB, 64); if (r) { DRM_ERROR("Failed to lock ring B %p\n", ringB); goto out_cleanup; } radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore); radeon_ring_unlock_commit(rdev, ringB, false); r = radeon_fence_wait(fence2, false); if (r) { DRM_ERROR("Failed to wait for sync fence 1\n"); goto out_cleanup; } out_cleanup: radeon_semaphore_free(rdev, &semaphore, NULL); if (fence1) radeon_fence_unref(&fence1); if (fence2) radeon_fence_unref(&fence2); if (r) printk(KERN_WARNING "Error while testing ring sync (%d).\n", r); }

Contributors

PersonTokensPropCommitsCommitProp
Christian König40393.72%666.67%
Alex Deucher173.95%111.11%
Michel Dänzer81.86%111.11%
Jérôme Glisse20.47%111.11%
Total430100.00%9100.00%


static void radeon_test_ring_sync2(struct radeon_device *rdev, struct radeon_ring *ringA, struct radeon_ring *ringB, struct radeon_ring *ringC) { struct radeon_fence *fenceA = NULL, *fenceB = NULL; struct radeon_semaphore *semaphore = NULL; bool sigA, sigB; int i, r; r = radeon_semaphore_create(rdev, &semaphore); if (r) { DRM_ERROR("Failed to create semaphore\n"); goto out_cleanup; } r = radeon_ring_lock(rdev, ringA, 64); if (r) { DRM_ERROR("Failed to lock ring A %d\n", ringA->idx); goto out_cleanup; } radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore); radeon_ring_unlock_commit(rdev, ringA, false); r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA); if (r) goto out_cleanup; r = radeon_ring_lock(rdev, ringB, 64); if (r) { DRM_ERROR("Failed to lock ring B %d\n", ringB->idx); goto out_cleanup; } radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore); radeon_ring_unlock_commit(rdev, ringB, false); r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB); if (r) goto out_cleanup; mdelay(1000); if (radeon_fence_signaled(fenceA)) { DRM_ERROR("Fence A signaled without waiting for semaphore.\n"); goto out_cleanup; } if (radeon_fence_signaled(fenceB)) { DRM_ERROR("Fence B signaled without waiting for semaphore.\n"); goto out_cleanup; } r = radeon_ring_lock(rdev, ringC, 64); if (r) { DRM_ERROR("Failed to lock ring B %p\n", ringC); goto out_cleanup; } radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); radeon_ring_unlock_commit(rdev, ringC, false); for (i = 0; i < 30; ++i) { mdelay(100); sigA = radeon_fence_signaled(fenceA); sigB = radeon_fence_signaled(fenceB); if (sigA || sigB) break; } if (!sigA && !sigB) { DRM_ERROR("Neither fence A nor B has been signaled\n"); goto out_cleanup; } else if (sigA && sigB) { DRM_ERROR("Both fence A and B has been signaled\n"); goto out_cleanup; } DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B'); r = radeon_ring_lock(rdev, ringC, 64); if (r) { DRM_ERROR("Failed to lock ring B %p\n", ringC); goto out_cleanup; } radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore); radeon_ring_unlock_commit(rdev, ringC, false); mdelay(1000); r = radeon_fence_wait(fenceA, false); if (r) { DRM_ERROR("Failed to wait for sync fence A\n"); goto out_cleanup; } r = radeon_fence_wait(fenceB, false); if (r) { DRM_ERROR("Failed to wait for sync fence B\n"); goto out_cleanup; } out_cleanup: radeon_semaphore_free(rdev, &semaphore, NULL); if (fenceA) radeon_fence_unref(&fenceA); if (fenceB) radeon_fence_unref(&fenceB); if (r) printk(KERN_WARNING "Error while testing ring sync (%d).\n", r); }

Contributors

PersonTokensPropCommitsCommitProp
Christian König49994.15%660.00%
Alex Deucher203.77%110.00%
Michel Dänzer81.51%110.00%
Jérôme Glisse20.38%110.00%
Lauri Kasanen10.19%110.00%
Total530100.00%10100.00%


static bool radeon_test_sync_possible(struct radeon_ring *ringA, struct radeon_ring *ringB) { if (ringA->idx == TN_RING_TYPE_VCE2_INDEX && ringB->idx == TN_RING_TYPE_VCE1_INDEX) return false; return true; }

Contributors

PersonTokensPropCommitsCommitProp
Christian König36100.00%1100.00%
Total36100.00%1100.00%


void radeon_test_syncing(struct radeon_device *rdev) { int i, j, k; for (i = 1; i < RADEON_NUM_RINGS; ++i) { struct radeon_ring *ringA = &rdev->ring[i]; if (!ringA->ready) continue; for (j = 0; j < i; ++j) { struct radeon_ring *ringB = &rdev->ring[j]; if (!ringB->ready) continue; if (!radeon_test_sync_possible(ringA, ringB)) continue; DRM_INFO("Testing syncing between rings %d and %d...\n", i, j); radeon_test_ring_sync(rdev, ringA, ringB); DRM_INFO("Testing syncing between rings %d and %d...\n", j, i); radeon_test_ring_sync(rdev, ringB, ringA); for (k = 0; k < j; ++k) { struct radeon_ring *ringC = &rdev->ring[k]; if (!ringC->ready) continue; if (!radeon_test_sync_possible(ringA, ringC)) continue; if (!radeon_test_sync_possible(ringB, ringC)) continue; DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k); radeon_test_ring_sync2(rdev, ringA, ringB, ringC); DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j); radeon_test_ring_sync2(rdev, ringA, ringC, ringB); DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k); radeon_test_ring_sync2(rdev, ringB, ringA, ringC); DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i); radeon_test_ring_sync2(rdev, ringB, ringC, ringA); DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j); radeon_test_ring_sync2(rdev, ringC, ringA, ringB); DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i); radeon_test_ring_sync2(rdev, ringC, ringB, ringA); } } } }

Contributors

PersonTokensPropCommitsCommitProp
Christian König31897.55%480.00%
Alex Deucher82.45%120.00%
Total326100.00%5100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Christian König151856.20%828.57%
Michel Dänzer80929.95%517.86%
Alex Deucher1947.18%621.43%
Jérôme Glisse782.89%310.71%
Maarten Lankhorst772.85%27.14%
Ilija Hadzic200.74%13.57%
Matt Turner20.07%13.57%
Dan Carpenter20.07%13.57%
Lauri Kasanen10.04%13.57%
Total2701100.00%28100.00%
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