Bug Summary

File:dev/pci/drm/radeon/radeon_test.c
Warning:line 200, column 31
Although the value stored to 'vram_end' is used in the enclosing expression, the value is never actually read from 'vram_end'

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name radeon_test.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -ffreestanding -mcmodel=kernel -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -target-feature -sse2 -target-feature -sse -target-feature -3dnow -target-feature -mmx -target-feature +save-args -target-feature +retpoline-external-thunk -disable-red-zone -no-implicit-float -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -nostdsysteminc -nobuiltininc -resource-dir /usr/local/llvm16/lib/clang/16 -I /usr/src/sys -I /usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -I /usr/src/sys/arch -I /usr/src/sys/dev/pci/drm/include -I /usr/src/sys/dev/pci/drm/include/uapi -I /usr/src/sys/dev/pci/drm/amd/include/asic_reg -I /usr/src/sys/dev/pci/drm/amd/include -I /usr/src/sys/dev/pci/drm/amd/amdgpu -I /usr/src/sys/dev/pci/drm/amd/display -I /usr/src/sys/dev/pci/drm/amd/display/include -I /usr/src/sys/dev/pci/drm/amd/display/dc -I /usr/src/sys/dev/pci/drm/amd/display/amdgpu_dm -I /usr/src/sys/dev/pci/drm/amd/pm/inc -I /usr/src/sys/dev/pci/drm/amd/pm/legacy-dpm -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu11 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu12 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu13 -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/inc -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/hwmgr -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/smumgr -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/inc/pmfw_if -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc/hw -I /usr/src/sys/dev/pci/drm/amd/display/dc/clk_mgr -I /usr/src/sys/dev/pci/drm/amd/display/modules/inc -I /usr/src/sys/dev/pci/drm/amd/display/modules/hdcp -I /usr/src/sys/dev/pci/drm/amd/display/dmub/inc -I /usr/src/sys/dev/pci/drm/i915 -D DDB -D DIAGNOSTIC -D KTRACE -D ACCOUNTING -D KMEMSTATS -D PTRACE -D POOL_DEBUG -D CRYPTO -D SYSVMSG -D SYSVSEM -D SYSVSHM -D UVM_SWAP_ENCRYPT -D FFS -D FFS2 -D FFS_SOFTUPDATES -D UFS_DIRHASH -D QUOTA -D EXT2FS -D MFS -D NFSCLIENT -D NFSSERVER -D CD9660 -D UDF -D MSDOSFS -D FIFO -D FUSE -D SOCKET_SPLICE -D TCP_ECN -D TCP_SIGNATURE -D INET6 -D IPSEC -D PPP_BSDCOMP -D PPP_DEFLATE -D PIPEX -D MROUTING -D MPLS -D BOOT_CONFIG -D USER_PCICONF -D APERTURE -D MTRR -D NTFS -D SUSPEND -D HIBERNATE -D PCIVERBOSE -D USBVERBOSE -D WSDISPLAY_COMPAT_USL -D WSDISPLAY_COMPAT_RAWKBD -D WSDISPLAY_DEFAULTSCREENS=6 -D X86EMU -D ONEWIREVERBOSE -D MULTIPROCESSOR -D MAXUSERS=80 -D _KERNEL -O2 -Wno-pointer-sign -Wno-address-of-packed-member -Wno-constant-conversion -Wno-unused-but-set-variable -Wno-gnu-folding-constant -fdebug-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/scan/2024-01-11-110808-61670-1 -x c /usr/src/sys/dev/pci/drm/radeon/radeon_test.c
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/*
3 * Copyright 2009 VMware, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors: Michel Dänzer
24 */
25
26#include <drm/radeon_drm.h>
27#include "radeon_reg.h"
28#include "radeon.h"
29
30#define RADEON_TEST_COPY_BLIT1 1
31#define RADEON_TEST_COPY_DMA0 0
32
33
34/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
35static void radeon_do_test_moves(struct radeon_device *rdev, int flag)
36{
37 struct radeon_bo *vram_obj = NULL((void *)0);
38 struct radeon_bo **gtt_obj = NULL((void *)0);
39 uint64_t gtt_addr, vram_addr;
40 unsigned n, size;
41 int i, r, ring;
42
43 switch (flag) {
44 case RADEON_TEST_COPY_DMA0:
45 ring = radeon_copy_dma_ring_index(rdev)(rdev)->asic->copy.dma_ring_index;
46 break;
47 case RADEON_TEST_COPY_BLIT1:
48 ring = radeon_copy_blit_ring_index(rdev)(rdev)->asic->copy.blit_ring_index;
49 break;
50 default:
51 DRM_ERROR("Unknown copy method\n")__drm_err("Unknown copy method\n");
52 return;
53 }
54
55 size = 1024 * 1024;
56
57 /* Number of tests =
58 * (Total GTT - IB pool - writeback page - ring buffers) / test size
59 */
60 n = rdev->mc.gtt_size - rdev->gart_pin_size;
61 n /= size;
62
63 gtt_obj = kcalloc(n, sizeof(*gtt_obj), GFP_KERNEL(0x0001 | 0x0004));
64 if (!gtt_obj) {
65 DRM_ERROR("Failed to allocate %d pointers\n", n)__drm_err("Failed to allocate %d pointers\n", n);
66 r = 1;
67 goto out_cleanup;
68 }
69
70 r = radeon_bo_create(rdev, size, PAGE_SIZE(1 << 12), true1, RADEON_GEM_DOMAIN_VRAM0x4,
71 0, NULL((void *)0), NULL((void *)0), &vram_obj);
72 if (r) {
73 DRM_ERROR("Failed to create VRAM object\n")__drm_err("Failed to create VRAM object\n");
74 goto out_cleanup;
75 }
76 r = radeon_bo_reserve(vram_obj, false0);
77 if (unlikely(r != 0)__builtin_expect(!!(r != 0), 0))
78 goto out_unref;
79 r = radeon_bo_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM0x4, &vram_addr);
80 if (r) {
81 DRM_ERROR("Failed to pin VRAM object\n")__drm_err("Failed to pin VRAM object\n");
82 goto out_unres;
83 }
84 for (i = 0; i < n; i++) {
85 void *gtt_map, *vram_map;
86 void **gtt_start, **gtt_end;
87 void **vram_start, **vram_end;
88 struct radeon_fence *fence = NULL((void *)0);
89
90 r = radeon_bo_create(rdev, size, PAGE_SIZE(1 << 12), true1,
91 RADEON_GEM_DOMAIN_GTT0x2, 0, NULL((void *)0), NULL((void *)0),
92 gtt_obj + i);
93 if (r) {
94 DRM_ERROR("Failed to create GTT object %d\n", i)__drm_err("Failed to create GTT object %d\n", i);
95 goto out_lclean;
96 }
97
98 r = radeon_bo_reserve(gtt_obj[i], false0);
99 if (unlikely(r != 0)__builtin_expect(!!(r != 0), 0))
100 goto out_lclean_unref;
101 r = radeon_bo_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT0x2, &gtt_addr);
102 if (r) {
103 DRM_ERROR("Failed to pin GTT object %d\n", i)__drm_err("Failed to pin GTT object %d\n", i);
104 goto out_lclean_unres;
105 }
106
107 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
108 if (r) {
109 DRM_ERROR("Failed to map GTT object %d\n", i)__drm_err("Failed to map GTT object %d\n", i);
110 goto out_lclean_unpin;
111 }
112
113 for (gtt_start = gtt_map, gtt_end = gtt_map + size;
114 gtt_start < gtt_end;
115 gtt_start++)
116 *gtt_start = gtt_start;
117
118 radeon_bo_kunmap(gtt_obj[i]);
119
120 if (ring == R600_RING_TYPE_DMA_INDEX3)
121 fence = radeon_copy_dma(rdev, gtt_addr, vram_addr,(rdev)->asic->copy.dma((rdev), (gtt_addr), (vram_addr),
(size / 4096), (vram_obj->tbo.base.resv))
122 size / RADEON_GPU_PAGE_SIZE,(rdev)->asic->copy.dma((rdev), (gtt_addr), (vram_addr),
(size / 4096), (vram_obj->tbo.base.resv))
123 vram_obj->tbo.base.resv)(rdev)->asic->copy.dma((rdev), (gtt_addr), (vram_addr),
(size / 4096), (vram_obj->tbo.base.resv));
124 else
125 fence = radeon_copy_blit(rdev, gtt_addr, vram_addr,(rdev)->asic->copy.blit((rdev), (gtt_addr), (vram_addr)
, (size / 4096), (vram_obj->tbo.base.resv))
126 size / RADEON_GPU_PAGE_SIZE,(rdev)->asic->copy.blit((rdev), (gtt_addr), (vram_addr)
, (size / 4096), (vram_obj->tbo.base.resv))
127 vram_obj->tbo.base.resv)(rdev)->asic->copy.blit((rdev), (gtt_addr), (vram_addr)
, (size / 4096), (vram_obj->tbo.base.resv));
128 if (IS_ERR(fence)) {
129 DRM_ERROR("Failed GTT->VRAM copy %d\n", i)__drm_err("Failed GTT->VRAM copy %d\n", i);
130 r = PTR_ERR(fence);
131 goto out_lclean_unpin;
132 }
133
134 r = radeon_fence_wait(fence, false0);
135 if (r) {
136 DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i)__drm_err("Failed to wait for GTT->VRAM fence %d\n", i);
137 goto out_lclean_unpin;
138 }
139
140 radeon_fence_unref(&fence);
141
142 r = radeon_bo_kmap(vram_obj, &vram_map);
143 if (r) {
144 DRM_ERROR("Failed to map VRAM object after copy %d\n", i)__drm_err("Failed to map VRAM object after copy %d\n", i);
145 goto out_lclean_unpin;
146 }
147
148 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
149 vram_start = vram_map, vram_end = vram_map + size;
150 vram_start < vram_end;
151 gtt_start++, vram_start++) {
152 if (*vram_start != gtt_start) {
153 DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "__drm_err("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))
154 "expected 0x%p (GTT/VRAM offset "__drm_err("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))
155 "0x%16llx/0x%16llx)\n",__drm_err("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))
156 i, *vram_start, gtt_start,__drm_err("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))
157 (unsigned long long)__drm_err("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))
158 (gtt_addr - rdev->mc.gtt_start +__drm_err("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))
159 (void*)gtt_start - gtt_map),__drm_err("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))
160 (unsigned long long)__drm_err("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))
161 (vram_addr - rdev->mc.vram_start +__drm_err("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))
162 (void*)gtt_start - gtt_map))__drm_err("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));
163 radeon_bo_kunmap(vram_obj);
164 goto out_lclean_unpin;
165 }
166 *vram_start = vram_start;
167 }
168
169 radeon_bo_kunmap(vram_obj);
170
171 if (ring == R600_RING_TYPE_DMA_INDEX3)
172 fence = radeon_copy_dma(rdev, vram_addr, gtt_addr,(rdev)->asic->copy.dma((rdev), (vram_addr), (gtt_addr),
(size / 4096), (vram_obj->tbo.base.resv))
173 size / RADEON_GPU_PAGE_SIZE,(rdev)->asic->copy.dma((rdev), (vram_addr), (gtt_addr),
(size / 4096), (vram_obj->tbo.base.resv))
174 vram_obj->tbo.base.resv)(rdev)->asic->copy.dma((rdev), (vram_addr), (gtt_addr),
(size / 4096), (vram_obj->tbo.base.resv));
175 else
176 fence = radeon_copy_blit(rdev, vram_addr, gtt_addr,(rdev)->asic->copy.blit((rdev), (vram_addr), (gtt_addr)
, (size / 4096), (vram_obj->tbo.base.resv))
177 size / RADEON_GPU_PAGE_SIZE,(rdev)->asic->copy.blit((rdev), (vram_addr), (gtt_addr)
, (size / 4096), (vram_obj->tbo.base.resv))
178 vram_obj->tbo.base.resv)(rdev)->asic->copy.blit((rdev), (vram_addr), (gtt_addr)
, (size / 4096), (vram_obj->tbo.base.resv));
179 if (IS_ERR(fence)) {
180 DRM_ERROR("Failed VRAM->GTT copy %d\n", i)__drm_err("Failed VRAM->GTT copy %d\n", i);
181 r = PTR_ERR(fence);
182 goto out_lclean_unpin;
183 }
184
185 r = radeon_fence_wait(fence, false0);
186 if (r) {
187 DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i)__drm_err("Failed to wait for VRAM->GTT fence %d\n", i);
188 goto out_lclean_unpin;
189 }
190
191 radeon_fence_unref(&fence);
192
193 r = radeon_bo_kmap(gtt_obj[i], &gtt_map);
194 if (r) {
195 DRM_ERROR("Failed to map GTT object after copy %d\n", i)__drm_err("Failed to map GTT object after copy %d\n", i);
196 goto out_lclean_unpin;
197 }
198
199 for (gtt_start = gtt_map, gtt_end = gtt_map + size,
200 vram_start = vram_map, vram_end = vram_map + size;
Although the value stored to 'vram_end' is used in the enclosing expression, the value is never actually read from 'vram_end'
201 gtt_start < gtt_end;
202 gtt_start++, vram_start++) {
203 if (*gtt_start != vram_start) {
204 DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "__drm_err("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))
205 "expected 0x%p (VRAM/GTT offset "__drm_err("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))
206 "0x%16llx/0x%16llx)\n",__drm_err("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))
207 i, *gtt_start, vram_start,__drm_err("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))
208 (unsigned long long)__drm_err("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))
209 (vram_addr - rdev->mc.vram_start +__drm_err("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))
210 (void*)vram_start - vram_map),__drm_err("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))
211 (unsigned long long)__drm_err("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))
212 (gtt_addr - rdev->mc.gtt_start +__drm_err("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))
213 (void*)vram_start - vram_map))__drm_err("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));
214 radeon_bo_kunmap(gtt_obj[i]);
215 goto out_lclean_unpin;
216 }
217 }
218
219 radeon_bo_kunmap(gtt_obj[i]);
220
221 DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",printk("\0016" "[" "drm" "] " "Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n"
, gtt_addr - rdev->mc.gtt_start)
222 gtt_addr - rdev->mc.gtt_start)printk("\0016" "[" "drm" "] " "Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n"
, gtt_addr - rdev->mc.gtt_start);
223 continue;
224
225out_lclean_unpin:
226 radeon_bo_unpin(gtt_obj[i]);
227out_lclean_unres:
228 radeon_bo_unreserve(gtt_obj[i]);
229out_lclean_unref:
230 radeon_bo_unref(&gtt_obj[i]);
231out_lclean:
232 for (--i; i >= 0; --i) {
233 radeon_bo_unpin(gtt_obj[i]);
234 radeon_bo_unreserve(gtt_obj[i]);
235 radeon_bo_unref(&gtt_obj[i]);
236 }
237 if (fence && !IS_ERR(fence))
238 radeon_fence_unref(&fence);
239 break;
240 }
241
242 radeon_bo_unpin(vram_obj);
243out_unres:
244 radeon_bo_unreserve(vram_obj);
245out_unref:
246 radeon_bo_unref(&vram_obj);
247out_cleanup:
248 kfree(gtt_obj);
249 if (r) {
250 pr_warn("Error while testing BO move\n")printk("\0014" "Error while testing BO move\n");
251 }
252}
253
254void radeon_test_moves(struct radeon_device *rdev)
255{
256 if (rdev->asic->copy.dma)
257 radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA0);
258 if (rdev->asic->copy.blit)
259 radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT1);
260}
261
262static int radeon_test_create_and_emit_fence(struct radeon_device *rdev,
263 struct radeon_ring *ring,
264 struct radeon_fence **fence)
265{
266 uint32_t handle = ring->idx ^ 0xdeafbeef;
267 int r;
268
269 if (ring->idx == R600_RING_TYPE_UVD_INDEX5) {
270 r = radeon_uvd_get_create_msg(rdev, ring->idx, handle, NULL((void *)0));
271 if (r) {
272 DRM_ERROR("Failed to get dummy create msg\n")__drm_err("Failed to get dummy create msg\n");
273 return r;
274 }
275
276 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, handle, fence);
277 if (r) {
278 DRM_ERROR("Failed to get dummy destroy msg\n")__drm_err("Failed to get dummy destroy msg\n");
279 return r;
280 }
281
282 } else if (ring->idx == TN_RING_TYPE_VCE1_INDEX6 ||
283 ring->idx == TN_RING_TYPE_VCE2_INDEX7) {
284 r = radeon_vce_get_create_msg(rdev, ring->idx, handle, NULL((void *)0));
285 if (r) {
286 DRM_ERROR("Failed to get dummy create msg\n")__drm_err("Failed to get dummy create msg\n");
287 return r;
288 }
289
290 r = radeon_vce_get_destroy_msg(rdev, ring->idx, handle, fence);
291 if (r) {
292 DRM_ERROR("Failed to get dummy destroy msg\n")__drm_err("Failed to get dummy destroy msg\n");
293 return r;
294 }
295
296 } else {
297 r = radeon_ring_lock(rdev, ring, 64);
298 if (r) {
299 DRM_ERROR("Failed to lock ring A %d\n", ring->idx)__drm_err("Failed to lock ring A %d\n", ring->idx);
300 return r;
301 }
302 r = radeon_fence_emit(rdev, fence, ring->idx);
303 if (r) {
304 DRM_ERROR("Failed to emit fence\n")__drm_err("Failed to emit fence\n");
305 radeon_ring_unlock_undo(rdev, ring);
306 return r;
307 }
308 radeon_ring_unlock_commit(rdev, ring, false0);
309 }
310 return 0;
311}
312
313void radeon_test_ring_sync(struct radeon_device *rdev,
314 struct radeon_ring *ringA,
315 struct radeon_ring *ringB)
316{
317 struct radeon_fence *fence1 = NULL((void *)0), *fence2 = NULL((void *)0);
318 struct radeon_semaphore *semaphore = NULL((void *)0);
319 int r;
320
321 r = radeon_semaphore_create(rdev, &semaphore);
322 if (r) {
323 DRM_ERROR("Failed to create semaphore\n")__drm_err("Failed to create semaphore\n");
324 goto out_cleanup;
325 }
326
327 r = radeon_ring_lock(rdev, ringA, 64);
328 if (r) {
329 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx)__drm_err("Failed to lock ring A %d\n", ringA->idx);
330 goto out_cleanup;
331 }
332 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
333 radeon_ring_unlock_commit(rdev, ringA, false0);
334
335 r = radeon_test_create_and_emit_fence(rdev, ringA, &fence1);
336 if (r)
337 goto out_cleanup;
338
339 r = radeon_ring_lock(rdev, ringA, 64);
340 if (r) {
341 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx)__drm_err("Failed to lock ring A %d\n", ringA->idx);
342 goto out_cleanup;
343 }
344 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
345 radeon_ring_unlock_commit(rdev, ringA, false0);
346
347 r = radeon_test_create_and_emit_fence(rdev, ringA, &fence2);
348 if (r)
349 goto out_cleanup;
350
351 drm_msleep(1000)mdelay(1000);
352
353 if (radeon_fence_signaled(fence1)) {
354 DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n")__drm_err("Fence 1 signaled without waiting for semaphore.\n"
);
355 goto out_cleanup;
356 }
357
358 r = radeon_ring_lock(rdev, ringB, 64);
359 if (r) {
360 DRM_ERROR("Failed to lock ring B %p\n", ringB)__drm_err("Failed to lock ring B %p\n", ringB);
361 goto out_cleanup;
362 }
363 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
364 radeon_ring_unlock_commit(rdev, ringB, false0);
365
366 r = radeon_fence_wait(fence1, false0);
367 if (r) {
368 DRM_ERROR("Failed to wait for sync fence 1\n")__drm_err("Failed to wait for sync fence 1\n");
369 goto out_cleanup;
370 }
371
372 drm_msleep(1000)mdelay(1000);
373
374 if (radeon_fence_signaled(fence2)) {
375 DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n")__drm_err("Fence 2 signaled without waiting for semaphore.\n"
);
376 goto out_cleanup;
377 }
378
379 r = radeon_ring_lock(rdev, ringB, 64);
380 if (r) {
381 DRM_ERROR("Failed to lock ring B %p\n", ringB)__drm_err("Failed to lock ring B %p\n", ringB);
382 goto out_cleanup;
383 }
384 radeon_semaphore_emit_signal(rdev, ringB->idx, semaphore);
385 radeon_ring_unlock_commit(rdev, ringB, false0);
386
387 r = radeon_fence_wait(fence2, false0);
388 if (r) {
389 DRM_ERROR("Failed to wait for sync fence 1\n")__drm_err("Failed to wait for sync fence 1\n");
390 goto out_cleanup;
391 }
392
393out_cleanup:
394 radeon_semaphore_free(rdev, &semaphore, NULL((void *)0));
395
396 if (fence1)
397 radeon_fence_unref(&fence1);
398
399 if (fence2)
400 radeon_fence_unref(&fence2);
401
402 if (r)
403 pr_warn("Error while testing ring sync (%d)\n", r)printk("\0014" "Error while testing ring sync (%d)\n", r);
404}
405
406static void radeon_test_ring_sync2(struct radeon_device *rdev,
407 struct radeon_ring *ringA,
408 struct radeon_ring *ringB,
409 struct radeon_ring *ringC)
410{
411 struct radeon_fence *fenceA = NULL((void *)0), *fenceB = NULL((void *)0);
412 struct radeon_semaphore *semaphore = NULL((void *)0);
413 bool_Bool sigA, sigB;
414 int i, r;
415
416 r = radeon_semaphore_create(rdev, &semaphore);
417 if (r) {
418 DRM_ERROR("Failed to create semaphore\n")__drm_err("Failed to create semaphore\n");
419 goto out_cleanup;
420 }
421
422 r = radeon_ring_lock(rdev, ringA, 64);
423 if (r) {
424 DRM_ERROR("Failed to lock ring A %d\n", ringA->idx)__drm_err("Failed to lock ring A %d\n", ringA->idx);
425 goto out_cleanup;
426 }
427 radeon_semaphore_emit_wait(rdev, ringA->idx, semaphore);
428 radeon_ring_unlock_commit(rdev, ringA, false0);
429
430 r = radeon_test_create_and_emit_fence(rdev, ringA, &fenceA);
431 if (r)
432 goto out_cleanup;
433
434 r = radeon_ring_lock(rdev, ringB, 64);
435 if (r) {
436 DRM_ERROR("Failed to lock ring B %d\n", ringB->idx)__drm_err("Failed to lock ring B %d\n", ringB->idx);
437 goto out_cleanup;
438 }
439 radeon_semaphore_emit_wait(rdev, ringB->idx, semaphore);
440 radeon_ring_unlock_commit(rdev, ringB, false0);
441 r = radeon_test_create_and_emit_fence(rdev, ringB, &fenceB);
442 if (r)
443 goto out_cleanup;
444
445 drm_msleep(1000)mdelay(1000);
446
447 if (radeon_fence_signaled(fenceA)) {
448 DRM_ERROR("Fence A signaled without waiting for semaphore.\n")__drm_err("Fence A signaled without waiting for semaphore.\n"
);
449 goto out_cleanup;
450 }
451 if (radeon_fence_signaled(fenceB)) {
452 DRM_ERROR("Fence B signaled without waiting for semaphore.\n")__drm_err("Fence B signaled without waiting for semaphore.\n"
);
453 goto out_cleanup;
454 }
455
456 r = radeon_ring_lock(rdev, ringC, 64);
457 if (r) {
458 DRM_ERROR("Failed to lock ring B %p\n", ringC)__drm_err("Failed to lock ring B %p\n", ringC);
459 goto out_cleanup;
460 }
461 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
462 radeon_ring_unlock_commit(rdev, ringC, false0);
463
464 for (i = 0; i < 30; ++i) {
465 drm_msleep(100)mdelay(100);
466 sigA = radeon_fence_signaled(fenceA);
467 sigB = radeon_fence_signaled(fenceB);
468 if (sigA || sigB)
469 break;
470 }
471
472 if (!sigA && !sigB) {
473 DRM_ERROR("Neither fence A nor B has been signaled\n")__drm_err("Neither fence A nor B has been signaled\n");
474 goto out_cleanup;
475 } else if (sigA && sigB) {
476 DRM_ERROR("Both fence A and B has been signaled\n")__drm_err("Both fence A and B has been signaled\n");
477 goto out_cleanup;
478 }
479
480 DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B')printk("\0016" "[" "drm" "] " "Fence %c was first signaled\n"
, sigA ? 'A' : 'B');
481
482 r = radeon_ring_lock(rdev, ringC, 64);
483 if (r) {
484 DRM_ERROR("Failed to lock ring B %p\n", ringC)__drm_err("Failed to lock ring B %p\n", ringC);
485 goto out_cleanup;
486 }
487 radeon_semaphore_emit_signal(rdev, ringC->idx, semaphore);
488 radeon_ring_unlock_commit(rdev, ringC, false0);
489
490 drm_msleep(1000)mdelay(1000);
491
492 r = radeon_fence_wait(fenceA, false0);
493 if (r) {
494 DRM_ERROR("Failed to wait for sync fence A\n")__drm_err("Failed to wait for sync fence A\n");
495 goto out_cleanup;
496 }
497 r = radeon_fence_wait(fenceB, false0);
498 if (r) {
499 DRM_ERROR("Failed to wait for sync fence B\n")__drm_err("Failed to wait for sync fence B\n");
500 goto out_cleanup;
501 }
502
503out_cleanup:
504 radeon_semaphore_free(rdev, &semaphore, NULL((void *)0));
505
506 if (fenceA)
507 radeon_fence_unref(&fenceA);
508
509 if (fenceB)
510 radeon_fence_unref(&fenceB);
511
512 if (r)
513 pr_warn("Error while testing ring sync (%d)\n", r)printk("\0014" "Error while testing ring sync (%d)\n", r);
514}
515
516static bool_Bool radeon_test_sync_possible(struct radeon_ring *ringA,
517 struct radeon_ring *ringB)
518{
519 if (ringA->idx == TN_RING_TYPE_VCE2_INDEX7 &&
520 ringB->idx == TN_RING_TYPE_VCE1_INDEX6)
521 return false0;
522
523 return true1;
524}
525
526void radeon_test_syncing(struct radeon_device *rdev)
527{
528 int i, j, k;
529
530 for (i = 1; i < RADEON_NUM_RINGS8; ++i) {
531 struct radeon_ring *ringA = &rdev->ring[i];
532 if (!ringA->ready)
533 continue;
534
535 for (j = 0; j < i; ++j) {
536 struct radeon_ring *ringB = &rdev->ring[j];
537 if (!ringB->ready)
538 continue;
539
540 if (!radeon_test_sync_possible(ringA, ringB))
541 continue;
542
543 DRM_INFO("Testing syncing between rings %d and %d...\n", i, j)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d and %d...\n"
, i, j);
544 radeon_test_ring_sync(rdev, ringA, ringB);
545
546 DRM_INFO("Testing syncing between rings %d and %d...\n", j, i)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d and %d...\n"
, j, i);
547 radeon_test_ring_sync(rdev, ringB, ringA);
548
549 for (k = 0; k < j; ++k) {
550 struct radeon_ring *ringC = &rdev->ring[k];
551 if (!ringC->ready)
552 continue;
553
554 if (!radeon_test_sync_possible(ringA, ringC))
555 continue;
556
557 if (!radeon_test_sync_possible(ringB, ringC))
558 continue;
559
560 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d, %d and %d...\n"
, i, j, k);
561 radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
562
563 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d, %d and %d...\n"
, i, k, j);
564 radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
565
566 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d, %d and %d...\n"
, j, i, k);
567 radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
568
569 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d, %d and %d...\n"
, j, k, i);
570 radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
571
572 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d, %d and %d...\n"
, k, i, j);
573 radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
574
575 DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i)printk("\0016" "[" "drm" "] " "Testing syncing between rings %d, %d and %d...\n"
, k, j, i);
576 radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
577 }
578 }
579 }
580}