Bug Summary

File:dev/pci/drm/radeon/radeon_vce.c
Warning:line 645, column 8
4th function call argument is an uninitialized value

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_vce.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_vce.c
1/*
2 * Copyright 2013 Advanced Micro Devices, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
20 *
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
23 * of the Software.
24 *
25 * Authors: Christian König <christian.koenig@amd.com>
26 */
27
28#include <linux/firmware.h>
29#include <linux/module.h>
30
31#include <drm/drm.h>
32
33#include "radeon.h"
34#include "radeon_asic.h"
35#include "sid.h"
36
37/* 1 second timeout */
38#define VCE_IDLE_TIMEOUT_MS1000 1000
39
40/* Firmware Names */
41#define FIRMWARE_TAHITI"radeon/TAHITI_vce.bin" "radeon/TAHITI_vce.bin"
42#define FIRMWARE_BONAIRE"radeon/BONAIRE_vce.bin" "radeon/BONAIRE_vce.bin"
43
44MODULE_FIRMWARE(FIRMWARE_TAHITI);
45MODULE_FIRMWARE(FIRMWARE_BONAIRE);
46
47static void radeon_vce_idle_work_handler(struct work_struct *work);
48
49/**
50 * radeon_vce_init - allocate memory, load vce firmware
51 *
52 * @rdev: radeon_device pointer
53 *
54 * First step to get VCE online, allocate memory and load the firmware
55 */
56int radeon_vce_init(struct radeon_device *rdev)
57{
58 static const char *fw_version = "[ATI LIB=VCEFW,";
59 static const char *fb_version = "[ATI LIB=VCEFWSTATS,";
60 unsigned long size;
61 const char *fw_name, *c;
62 uint8_t start, mid, end;
63 int i, r;
64
65 INIT_DELAYED_WORK(&rdev->vce.idle_work, radeon_vce_idle_work_handler);
66
67 switch (rdev->family) {
68 case CHIP_TAHITI:
69 case CHIP_PITCAIRN:
70 case CHIP_VERDE:
71 case CHIP_ARUBA:
72 fw_name = FIRMWARE_TAHITI"radeon/TAHITI_vce.bin";
73 break;
74
75 case CHIP_BONAIRE:
76 case CHIP_KAVERI:
77 case CHIP_KABINI:
78 case CHIP_HAWAII:
79 case CHIP_MULLINS:
80 fw_name = FIRMWARE_BONAIRE"radeon/BONAIRE_vce.bin";
81 break;
82
83 default:
84 return -EINVAL22;
85 }
86
87 r = request_firmware(&rdev->vce_fw, fw_name, rdev->dev);
88 if (r) {
89 dev_err(rdev->dev, "radeon_vce: Can't load firmware \"%s\"\n",printf("drm:pid%d:%s *ERROR* " "radeon_vce: Can't load firmware \"%s\"\n"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , fw_name
)
90 fw_name)printf("drm:pid%d:%s *ERROR* " "radeon_vce: Can't load firmware \"%s\"\n"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , fw_name
);
91 return r;
92 }
93
94 /* search for firmware version */
95
96 size = rdev->vce_fw->size - strlen(fw_version) - 9;
97 c = rdev->vce_fw->data;
98 for (;size > 0; --size, ++c)
99 if (strncmp(c, fw_version, strlen(fw_version)) == 0)
100 break;
101
102 if (size == 0)
103 return -EINVAL22;
104
105 c += strlen(fw_version);
106#ifdef notyet
107 if (sscanf(c, "%2hhd.%2hhd.%2hhd]", &start, &mid, &end) != 3)
108 return -EINVAL22;
109#else
110 if (c[2] != '.') {
111 printf("%s %s bad start value\n", rdev->self.dv_xname, __func__);
112 return -EINVAL22;
113 }
114 start = (10 * (c[0] - '0')) + (c[1] - '0');
115 c += 3;
116
117 if (c[1] != '.') {
118 printf("%s %s bad mid value\n", rdev->self.dv_xname, __func__);
119 return -EINVAL22;
120 }
121 mid = c[0] - '0';
122 c += 2;
123
124 if (c[1] != ']') {
125 printf("%s %s bad end value\n", rdev->self.dv_xname, __func__);
126 return -EINVAL22;
127 }
128 end = c[0] - '0';
129#endif
130
131 /* search for feedback version */
132
133 size = rdev->vce_fw->size - strlen(fb_version) - 3;
134 c = rdev->vce_fw->data;
135 for (;size > 0; --size, ++c)
136 if (strncmp(c, fb_version, strlen(fb_version)) == 0)
137 break;
138
139 if (size == 0)
140 return -EINVAL22;
141
142 c += strlen(fb_version);
143#ifdef notyet
144 if (sscanf(c, "%2u]", &rdev->vce.fb_version) != 1)
145 return -EINVAL22;
146#else
147 if (c[2] != ']') {
148 printf("%s %s bad fb_version value\n", rdev->self.dv_xname, __func__);
149 return -EINVAL22;
150 }
151 rdev->vce.fb_version = (10 * (c[0] - '0')) + (c[1] - '0');
152#endif
153
154 DRM_INFO("Found VCE firmware/feedback version %d.%d.%d / %d!\n",printk("\0016" "[" "drm" "] " "Found VCE firmware/feedback version %d.%d.%d / %d!\n"
, start, mid, end, rdev->vce.fb_version)
155 start, mid, end, rdev->vce.fb_version)printk("\0016" "[" "drm" "] " "Found VCE firmware/feedback version %d.%d.%d / %d!\n"
, start, mid, end, rdev->vce.fb_version);
156
157 rdev->vce.fw_version = (start << 24) | (mid << 16) | (end << 8);
158
159 /* we can only work with this fw version for now */
160 if ((rdev->vce.fw_version != ((40 << 24) | (2 << 16) | (2 << 8))) &&
161 (rdev->vce.fw_version != ((50 << 24) | (0 << 16) | (1 << 8))) &&
162 (rdev->vce.fw_version != ((50 << 24) | (1 << 16) | (2 << 8))))
163 return -EINVAL22;
164
165 /* allocate firmware, stack and heap BO */
166
167 if (rdev->family < CHIP_BONAIRE)
168 size = vce_v1_0_bo_size(rdev);
169 else
170 size = vce_v2_0_bo_size(rdev);
171 r = radeon_bo_create(rdev, size, PAGE_SIZE(1 << 12), true1,
172 RADEON_GEM_DOMAIN_VRAM0x4, 0, NULL((void *)0), NULL((void *)0),
173 &rdev->vce.vcpu_bo);
174 if (r) {
175 dev_err(rdev->dev, "(%d) failed to allocate VCE bo\n", r)printf("drm:pid%d:%s *ERROR* " "(%d) failed to allocate VCE bo\n"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , r);
176 return r;
177 }
178
179 r = radeon_bo_reserve(rdev->vce.vcpu_bo, false0);
180 if (r) {
181 radeon_bo_unref(&rdev->vce.vcpu_bo);
182 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r)printf("drm:pid%d:%s *ERROR* " "(%d) failed to reserve VCE bo\n"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , r);
183 return r;
184 }
185
186 r = radeon_bo_pin(rdev->vce.vcpu_bo, RADEON_GEM_DOMAIN_VRAM0x4,
187 &rdev->vce.gpu_addr);
188 radeon_bo_unreserve(rdev->vce.vcpu_bo);
189 if (r) {
190 radeon_bo_unref(&rdev->vce.vcpu_bo);
191 dev_err(rdev->dev, "(%d) VCE bo pin failed\n", r)printf("drm:pid%d:%s *ERROR* " "(%d) VCE bo pin failed\n", ({
struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , r);
192 return r;
193 }
194
195 for (i = 0; i < RADEON_MAX_VCE_HANDLES16; ++i) {
196 atomic_set(&rdev->vce.handles[i], 0)({ typeof(*(&rdev->vce.handles[i])) __tmp = ((0)); *(volatile
typeof(*(&rdev->vce.handles[i])) *)&(*(&rdev->
vce.handles[i])) = __tmp; __tmp; });
197 rdev->vce.filp[i] = NULL((void *)0);
198 }
199
200 return 0;
201}
202
203/**
204 * radeon_vce_fini - free memory
205 *
206 * @rdev: radeon_device pointer
207 *
208 * Last step on VCE teardown, free firmware memory
209 */
210void radeon_vce_fini(struct radeon_device *rdev)
211{
212 if (rdev->vce.vcpu_bo == NULL((void *)0))
213 return;
214
215 radeon_bo_unref(&rdev->vce.vcpu_bo);
216
217 release_firmware(rdev->vce_fw);
218}
219
220/**
221 * radeon_vce_suspend - unpin VCE fw memory
222 *
223 * @rdev: radeon_device pointer
224 *
225 */
226int radeon_vce_suspend(struct radeon_device *rdev)
227{
228 int i;
229
230 if (rdev->vce.vcpu_bo == NULL((void *)0))
231 return 0;
232
233 for (i = 0; i < RADEON_MAX_VCE_HANDLES16; ++i)
234 if (atomic_read(&rdev->vce.handles[i])({ typeof(*(&rdev->vce.handles[i])) __tmp = *(volatile
typeof(*(&rdev->vce.handles[i])) *)&(*(&rdev->
vce.handles[i])); membar_datadep_consumer(); __tmp; }))
235 break;
236
237 if (i == RADEON_MAX_VCE_HANDLES16)
238 return 0;
239
240 /* TODO: suspending running encoding sessions isn't supported */
241 return -EINVAL22;
242}
243
244/**
245 * radeon_vce_resume - pin VCE fw memory
246 *
247 * @rdev: radeon_device pointer
248 *
249 */
250int radeon_vce_resume(struct radeon_device *rdev)
251{
252 void *cpu_addr;
253 int r;
254
255 if (rdev->vce.vcpu_bo == NULL((void *)0))
256 return -EINVAL22;
257
258 r = radeon_bo_reserve(rdev->vce.vcpu_bo, false0);
259 if (r) {
260 dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r)printf("drm:pid%d:%s *ERROR* " "(%d) failed to reserve VCE bo\n"
, ({struct cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r"
(__ci) :"n" (__builtin_offsetof(struct cpu_info, ci_self)));
__ci;})->ci_curproc->p_p->ps_pid, __func__ , r);
261 return r;
262 }
263
264 r = radeon_bo_kmap(rdev->vce.vcpu_bo, &cpu_addr);
265 if (r) {
266 radeon_bo_unreserve(rdev->vce.vcpu_bo);
267 dev_err(rdev->dev, "(%d) VCE map failed\n", r)printf("drm:pid%d:%s *ERROR* " "(%d) VCE map failed\n", ({struct
cpu_info *__ci; asm volatile("movq %%gs:%P1,%0" : "=r" (__ci
) :"n" (__builtin_offsetof(struct cpu_info, ci_self))); __ci;
})->ci_curproc->p_p->ps_pid, __func__ , r);
268 return r;
269 }
270
271 memset(cpu_addr, 0, radeon_bo_size(rdev->vce.vcpu_bo))__builtin_memset((cpu_addr), (0), (radeon_bo_size(rdev->vce
.vcpu_bo)));
272 if (rdev->family < CHIP_BONAIRE)
273 r = vce_v1_0_load_fw(rdev, cpu_addr);
274 else
275 memcpy(cpu_addr, rdev->vce_fw->data, rdev->vce_fw->size)__builtin_memcpy((cpu_addr), (rdev->vce_fw->data), (rdev
->vce_fw->size));
276
277 radeon_bo_kunmap(rdev->vce.vcpu_bo);
278
279 radeon_bo_unreserve(rdev->vce.vcpu_bo);
280
281 return r;
282}
283
284/**
285 * radeon_vce_idle_work_handler - power off VCE
286 *
287 * @work: pointer to work structure
288 *
289 * power of VCE when it's not used any more
290 */
291static void radeon_vce_idle_work_handler(struct work_struct *work)
292{
293 struct radeon_device *rdev =
294 container_of(work, struct radeon_device, vce.idle_work.work)({ const __typeof( ((struct radeon_device *)0)->vce.idle_work
.work ) *__mptr = (work); (struct radeon_device *)( (char *)__mptr
- __builtin_offsetof(struct radeon_device, vce.idle_work.work
) );});
295
296 if ((radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE1_INDEX6) == 0) &&
297 (radeon_fence_count_emitted(rdev, TN_RING_TYPE_VCE2_INDEX7) == 0)) {
298 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
299 radeon_dpm_enable_vce(rdev, false0);
300 } else {
301 radeon_set_vce_clocks(rdev, 0, 0)(rdev)->asic->pm.set_vce_clocks((rdev), (0), (0));
302 }
303 } else {
304 schedule_delayed_work(&rdev->vce.idle_work,
305 msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS)(((uint64_t)(1000)) * hz / 1000));
306 }
307}
308
309/**
310 * radeon_vce_note_usage - power up VCE
311 *
312 * @rdev: radeon_device pointer
313 *
314 * Make sure VCE is powerd up when we want to use it
315 */
316void radeon_vce_note_usage(struct radeon_device *rdev)
317{
318 bool_Bool streams_changed = false0;
319 bool_Bool set_clocks = !cancel_delayed_work_sync(&rdev->vce.idle_work);
320 set_clocks &= schedule_delayed_work(&rdev->vce.idle_work,
321 msecs_to_jiffies(VCE_IDLE_TIMEOUT_MS)(((uint64_t)(1000)) * hz / 1000));
322
323 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
324 /* XXX figure out if the streams changed */
325 streams_changed = false0;
326 }
327
328 if (set_clocks || streams_changed) {
329 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
330 radeon_dpm_enable_vce(rdev, true1);
331 } else {
332 radeon_set_vce_clocks(rdev, 53300, 40000)(rdev)->asic->pm.set_vce_clocks((rdev), (53300), (40000
));
333 }
334 }
335}
336
337/**
338 * radeon_vce_free_handles - free still open VCE handles
339 *
340 * @rdev: radeon_device pointer
341 * @filp: drm file pointer
342 *
343 * Close all VCE handles still open by this file pointer
344 */
345void radeon_vce_free_handles(struct radeon_device *rdev, struct drm_file *filp)
346{
347 int i, r;
348 for (i = 0; i < RADEON_MAX_VCE_HANDLES16; ++i) {
349 uint32_t handle = atomic_read(&rdev->vce.handles[i])({ typeof(*(&rdev->vce.handles[i])) __tmp = *(volatile
typeof(*(&rdev->vce.handles[i])) *)&(*(&rdev->
vce.handles[i])); membar_datadep_consumer(); __tmp; });
350 if (!handle || rdev->vce.filp[i] != filp)
351 continue;
352
353 radeon_vce_note_usage(rdev);
354
355 r = radeon_vce_get_destroy_msg(rdev, TN_RING_TYPE_VCE1_INDEX6,
356 handle, NULL((void *)0));
357 if (r)
358 DRM_ERROR("Error destroying VCE handle (%d)!\n", r)__drm_err("Error destroying VCE handle (%d)!\n", r);
359
360 rdev->vce.filp[i] = NULL((void *)0);
361 atomic_set(&rdev->vce.handles[i], 0)({ typeof(*(&rdev->vce.handles[i])) __tmp = ((0)); *(volatile
typeof(*(&rdev->vce.handles[i])) *)&(*(&rdev->
vce.handles[i])) = __tmp; __tmp; });
362 }
363}
364
365/**
366 * radeon_vce_get_create_msg - generate a VCE create msg
367 *
368 * @rdev: radeon_device pointer
369 * @ring: ring we should submit the msg to
370 * @handle: VCE session handle to use
371 * @fence: optional fence to return
372 *
373 * Open up a stream for HW test
374 */
375int radeon_vce_get_create_msg(struct radeon_device *rdev, int ring,
376 uint32_t handle, struct radeon_fence **fence)
377{
378 const unsigned ib_size_dw = 1024;
379 struct radeon_ib ib;
380 uint64_t dummy;
381 int i, r;
382
383 r = radeon_ib_get(rdev, ring, &ib, NULL((void *)0), ib_size_dw * 4);
384 if (r) {
385 DRM_ERROR("radeon: failed to get ib (%d).\n", r)__drm_err("radeon: failed to get ib (%d).\n", r);
386 return r;
387 }
388
389 dummy = ib.gpu_addr + 1024;
390
391 /* stitch together an VCE create msg */
392 ib.length_dw = 0;
393 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c)((__uint32_t)(0x0000000c)); /* len */
394 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001)((__uint32_t)(0x00000001)); /* session cmd */
395 ib.ptr[ib.length_dw++] = cpu_to_le32(handle)((__uint32_t)(handle));
396
397 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000030)((__uint32_t)(0x00000030)); /* len */
398 ib.ptr[ib.length_dw++] = cpu_to_le32(0x01000001)((__uint32_t)(0x01000001)); /* create cmd */
399 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000000)((__uint32_t)(0x00000000));
400 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000042)((__uint32_t)(0x00000042));
401 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000a)((__uint32_t)(0x0000000a));
402 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001)((__uint32_t)(0x00000001));
403 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000080)((__uint32_t)(0x00000080));
404 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000060)((__uint32_t)(0x00000060));
405 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000100)((__uint32_t)(0x00000100));
406 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000100)((__uint32_t)(0x00000100));
407 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c)((__uint32_t)(0x0000000c));
408 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000000)((__uint32_t)(0x00000000));
409
410 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000014)((__uint32_t)(0x00000014)); /* len */
411 ib.ptr[ib.length_dw++] = cpu_to_le32(0x05000005)((__uint32_t)(0x05000005)); /* feedback buffer */
412 ib.ptr[ib.length_dw++] = cpu_to_le32(upper_32_bits(dummy))((__uint32_t)(((u32)(((dummy) >> 16) >> 16))));
413 ib.ptr[ib.length_dw++] = cpu_to_le32(dummy)((__uint32_t)(dummy));
414 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001)((__uint32_t)(0x00000001));
415
416 for (i = ib.length_dw; i < ib_size_dw; ++i)
417 ib.ptr[i] = cpu_to_le32(0x0)((__uint32_t)(0x0));
418
419 r = radeon_ib_schedule(rdev, &ib, NULL((void *)0), false0);
420 if (r)
421 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r)__drm_err("radeon: failed to schedule ib (%d).\n", r);
422
423
424 if (fence)
425 *fence = radeon_fence_ref(ib.fence);
426
427 radeon_ib_free(rdev, &ib);
428
429 return r;
430}
431
432/**
433 * radeon_vce_get_destroy_msg - generate a VCE destroy msg
434 *
435 * @rdev: radeon_device pointer
436 * @ring: ring we should submit the msg to
437 * @handle: VCE session handle to use
438 * @fence: optional fence to return
439 *
440 * Close up a stream for HW test or if userspace failed to do so
441 */
442int radeon_vce_get_destroy_msg(struct radeon_device *rdev, int ring,
443 uint32_t handle, struct radeon_fence **fence)
444{
445 const unsigned ib_size_dw = 1024;
446 struct radeon_ib ib;
447 uint64_t dummy;
448 int i, r;
449
450 r = radeon_ib_get(rdev, ring, &ib, NULL((void *)0), ib_size_dw * 4);
451 if (r) {
452 DRM_ERROR("radeon: failed to get ib (%d).\n", r)__drm_err("radeon: failed to get ib (%d).\n", r);
453 return r;
454 }
455
456 dummy = ib.gpu_addr + 1024;
457
458 /* stitch together an VCE destroy msg */
459 ib.length_dw = 0;
460 ib.ptr[ib.length_dw++] = cpu_to_le32(0x0000000c)((__uint32_t)(0x0000000c)); /* len */
461 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001)((__uint32_t)(0x00000001)); /* session cmd */
462 ib.ptr[ib.length_dw++] = cpu_to_le32(handle)((__uint32_t)(handle));
463
464 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000014)((__uint32_t)(0x00000014)); /* len */
465 ib.ptr[ib.length_dw++] = cpu_to_le32(0x05000005)((__uint32_t)(0x05000005)); /* feedback buffer */
466 ib.ptr[ib.length_dw++] = cpu_to_le32(upper_32_bits(dummy))((__uint32_t)(((u32)(((dummy) >> 16) >> 16))));
467 ib.ptr[ib.length_dw++] = cpu_to_le32(dummy)((__uint32_t)(dummy));
468 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000001)((__uint32_t)(0x00000001));
469
470 ib.ptr[ib.length_dw++] = cpu_to_le32(0x00000008)((__uint32_t)(0x00000008)); /* len */
471 ib.ptr[ib.length_dw++] = cpu_to_le32(0x02000001)((__uint32_t)(0x02000001)); /* destroy cmd */
472
473 for (i = ib.length_dw; i < ib_size_dw; ++i)
474 ib.ptr[i] = cpu_to_le32(0x0)((__uint32_t)(0x0));
475
476 r = radeon_ib_schedule(rdev, &ib, NULL((void *)0), false0);
477 if (r) {
478 DRM_ERROR("radeon: failed to schedule ib (%d).\n", r)__drm_err("radeon: failed to schedule ib (%d).\n", r);
479 }
480
481 if (fence)
482 *fence = radeon_fence_ref(ib.fence);
483
484 radeon_ib_free(rdev, &ib);
485
486 return r;
487}
488
489/**
490 * radeon_vce_cs_reloc - command submission relocation
491 *
492 * @p: parser context
493 * @lo: address of lower dword
494 * @hi: address of higher dword
495 * @size: size of checker for relocation buffer
496 *
497 * Patch relocation inside command stream with real buffer address
498 */
499int radeon_vce_cs_reloc(struct radeon_cs_parser *p, int lo, int hi,
500 unsigned size)
501{
502 struct radeon_cs_chunk *relocs_chunk;
503 struct radeon_bo_list *reloc;
504 uint64_t start, end, offset;
505 unsigned idx;
506
507 relocs_chunk = p->chunk_relocs;
508 offset = radeon_get_ib_value(p, lo);
509 idx = radeon_get_ib_value(p, hi);
510
511 if (idx >= relocs_chunk->length_dw) {
512 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",__drm_err("Relocs at %d after relocations chunk end %d !\n", idx
, relocs_chunk->length_dw)
513 idx, relocs_chunk->length_dw)__drm_err("Relocs at %d after relocations chunk end %d !\n", idx
, relocs_chunk->length_dw);
514 return -EINVAL22;
515 }
516
517 reloc = &p->relocs[(idx / 4)];
518 start = reloc->gpu_offset;
519 end = start + radeon_bo_size(reloc->robj);
520 start += offset;
521
522 p->ib.ptr[lo] = start & 0xFFFFFFFF;
523 p->ib.ptr[hi] = start >> 32;
524
525 if (end <= start) {
526 DRM_ERROR("invalid reloc offset %llX!\n", offset)__drm_err("invalid reloc offset %llX!\n", offset);
527 return -EINVAL22;
528 }
529 if ((end - start) < size) {
530 DRM_ERROR("buffer to small (%d / %d)!\n",__drm_err("buffer to small (%d / %d)!\n", (unsigned)(end - start
), size)
531 (unsigned)(end - start), size)__drm_err("buffer to small (%d / %d)!\n", (unsigned)(end - start
), size);
532 return -EINVAL22;
533 }
534
535 return 0;
536}
537
538/**
539 * radeon_vce_validate_handle - validate stream handle
540 *
541 * @p: parser context
542 * @handle: handle to validate
543 * @allocated: allocated a new handle?
544 *
545 * Validates the handle and return the found session index or -EINVAL
546 * we don't have another free session index.
547 */
548static int radeon_vce_validate_handle(struct radeon_cs_parser *p,
549 uint32_t handle, bool_Bool *allocated)
550{
551 unsigned i;
552
553 *allocated = false0;
554
555 /* validate the handle */
556 for (i = 0; i < RADEON_MAX_VCE_HANDLES16; ++i) {
557 if (atomic_read(&p->rdev->vce.handles[i])({ typeof(*(&p->rdev->vce.handles[i])) __tmp = *(volatile
typeof(*(&p->rdev->vce.handles[i])) *)&(*(&
p->rdev->vce.handles[i])); membar_datadep_consumer(); __tmp
; }) == handle) {
558 if (p->rdev->vce.filp[i] != p->filp) {
559 DRM_ERROR("VCE handle collision detected!\n")__drm_err("VCE handle collision detected!\n");
560 return -EINVAL22;
561 }
562 return i;
563 }
564 }
565
566 /* handle not found try to alloc a new one */
567 for (i = 0; i < RADEON_MAX_VCE_HANDLES16; ++i) {
568 if (!atomic_cmpxchg(&p->rdev->vce.handles[i], 0, handle)__sync_val_compare_and_swap(&p->rdev->vce.handles[i
], 0, handle)) {
569 p->rdev->vce.filp[i] = p->filp;
570 p->rdev->vce.img_size[i] = 0;
571 *allocated = true1;
572 return i;
573 }
574 }
575
576 DRM_ERROR("No more free VCE handles!\n")__drm_err("No more free VCE handles!\n");
577 return -EINVAL22;
578}
579
580/**
581 * radeon_vce_cs_parse - parse and validate the command stream
582 *
583 * @p: parser context
584 *
585 */
586int radeon_vce_cs_parse(struct radeon_cs_parser *p)
587{
588 int session_idx = -1;
589 bool_Bool destroyed = false0, created = false0, allocated = false0;
590 uint32_t tmp, handle = 0;
1
'tmp' declared without an initial value
→
591 uint32_t *size = &tmp;
592 int i, r = 0;
593
594 while (p->idx < p->chunk_ib->length_dw) {
2
←
Assuming field 'idx' is < field 'length_dw'
→
3
←
Loop condition is true. Entering loop body
→
595 uint32_t len = radeon_get_ib_value(p, p->idx);
596 uint32_t cmd = radeon_get_ib_value(p, p->idx + 1);
597
598 if ((len < 8) || (len & 3)) {
4
←
Assuming 'len' is >= 8
→
5
←
Assuming the condition is false
→
6
←
Taking false branch
→
599 DRM_ERROR("invalid VCE command length (%d)!\n", len)__drm_err("invalid VCE command length (%d)!\n", len);
600 r = -EINVAL22;
601 goto out;
602 }
603
604 if (destroyed
6.1
'destroyed' is false
) {
7
←
Taking false branch
→
605 DRM_ERROR("No other command allowed after destroy!\n")__drm_err("No other command allowed after destroy!\n");
606 r = -EINVAL22;
607 goto out;
608 }
609
610 switch (cmd) {
8
←
Control jumps to 'case 50331649:' at line 644
→
611 case 0x00000001: // session
612 handle = radeon_get_ib_value(p, p->idx + 2);
613 session_idx = radeon_vce_validate_handle(p, handle,
614 &allocated);
615 if (session_idx < 0)
616 return session_idx;
617 size = &p->rdev->vce.img_size[session_idx];
618 break;
619
620 case 0x00000002: // task info
621 break;
622
623 case 0x01000001: // create
624 created = true1;
625 if (!allocated) {
626 DRM_ERROR("Handle already in use!\n")__drm_err("Handle already in use!\n");
627 r = -EINVAL22;
628 goto out;
629 }
630
631 *size = radeon_get_ib_value(p, p->idx + 8) *
632 radeon_get_ib_value(p, p->idx + 10) *
633 8 * 3 / 2;
634 break;
635
636 case 0x04000001: // config extension
637 case 0x04000002: // pic control
638 case 0x04000005: // rate control
639 case 0x04000007: // motion estimation
640 case 0x04000008: // rdo
641 case 0x04000009: // vui
642 break;
643
644 case 0x03000001: // encode
645 r = radeon_vce_cs_reloc(p, p->idx + 10, p->idx + 9,
9
←
4th function call argument is an uninitialized value
646 *size);
647 if (r)
648 goto out;
649
650 r = radeon_vce_cs_reloc(p, p->idx + 12, p->idx + 11,
651 *size / 3);
652 if (r)
653 goto out;
654 break;
655
656 case 0x02000001: // destroy
657 destroyed = true1;
658 break;
659
660 case 0x05000001: // context buffer
661 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
662 *size * 2);
663 if (r)
664 goto out;
665 break;
666
667 case 0x05000004: // video bitstream buffer
668 tmp = radeon_get_ib_value(p, p->idx + 4);
669 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
670 tmp);
671 if (r)
672 goto out;
673 break;
674
675 case 0x05000005: // feedback buffer
676 r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2,
677 4096);
678 if (r)
679 goto out;
680 break;
681
682 default:
683 DRM_ERROR("invalid VCE command (0x%x)!\n", cmd)__drm_err("invalid VCE command (0x%x)!\n", cmd);
684 r = -EINVAL22;
685 goto out;
686 }
687
688 if (session_idx == -1) {
689 DRM_ERROR("no session command at start of IB\n")__drm_err("no session command at start of IB\n");
690 r = -EINVAL22;
691 goto out;
692 }
693
694 p->idx += len / 4;
695 }
696
697 if (allocated && !created) {
698 DRM_ERROR("New session without create command!\n")__drm_err("New session without create command!\n");
699 r = -ENOENT2;
700 }
701
702out:
703 if ((!r && destroyed) || (r && allocated)) {
704 /*
705 * IB contains a destroy msg or we have allocated an
706 * handle and got an error, anyway free the handle
707 */
708 for (i = 0; i < RADEON_MAX_VCE_HANDLES16; ++i)
709 atomic_cmpxchg(&p->rdev->vce.handles[i], handle, 0)__sync_val_compare_and_swap(&p->rdev->vce.handles[i
], handle, 0);
710 }
711
712 return r;
713}
714
715/**
716 * radeon_vce_semaphore_emit - emit a semaphore command
717 *
718 * @rdev: radeon_device pointer
719 * @ring: engine to use
720 * @semaphore: address of semaphore
721 * @emit_wait: true=emit wait, false=emit signal
722 *
723 */
724bool_Bool radeon_vce_semaphore_emit(struct radeon_device *rdev,
725 struct radeon_ring *ring,
726 struct radeon_semaphore *semaphore,
727 bool_Bool emit_wait)
728{
729 uint64_t addr = semaphore->gpu_addr;
730
731 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_SEMAPHORE)((__uint32_t)(0x00000006)));
732 radeon_ring_write(ring, cpu_to_le32((addr >> 3) & 0x000FFFFF)((__uint32_t)((addr >> 3) & 0x000FFFFF)));
733 radeon_ring_write(ring, cpu_to_le32((addr >> 23) & 0x000FFFFF)((__uint32_t)((addr >> 23) & 0x000FFFFF)));
734 radeon_ring_write(ring, cpu_to_le32(0x01003000 | (emit_wait ? 1 : 0))((__uint32_t)(0x01003000 | (emit_wait ? 1 : 0))));
735 if (!emit_wait)
736 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END)((__uint32_t)(0x00000001)));
737
738 return true1;
739}
740
741/**
742 * radeon_vce_ib_execute - execute indirect buffer
743 *
744 * @rdev: radeon_device pointer
745 * @ib: the IB to execute
746 *
747 */
748void radeon_vce_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
749{
750 struct radeon_ring *ring = &rdev->ring[ib->ring];
751 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_IB)((__uint32_t)(0x00000002)));
752 radeon_ring_write(ring, cpu_to_le32(ib->gpu_addr)((__uint32_t)(ib->gpu_addr)));
753 radeon_ring_write(ring, cpu_to_le32(upper_32_bits(ib->gpu_addr))((__uint32_t)(((u32)(((ib->gpu_addr) >> 16) >>
16)))));
754 radeon_ring_write(ring, cpu_to_le32(ib->length_dw)((__uint32_t)(ib->length_dw)));
755}
756
757/**
758 * radeon_vce_fence_emit - add a fence command to the ring
759 *
760 * @rdev: radeon_device pointer
761 * @fence: the fence
762 *
763 */
764void radeon_vce_fence_emit(struct radeon_device *rdev,
765 struct radeon_fence *fence)
766{
767 struct radeon_ring *ring = &rdev->ring[fence->ring];
768 uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
769
770 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_FENCE)((__uint32_t)(0x00000003)));
771 radeon_ring_write(ring, cpu_to_le32(addr)((__uint32_t)(addr)));
772 radeon_ring_write(ring, cpu_to_le32(upper_32_bits(addr))((__uint32_t)(((u32)(((addr) >> 16) >> 16)))));
773 radeon_ring_write(ring, cpu_to_le32(fence->seq)((__uint32_t)(fence->seq)));
774 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_TRAP)((__uint32_t)(0x00000004)));
775 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END)((__uint32_t)(0x00000001)));
776}
777
778/**
779 * radeon_vce_ring_test - test if VCE ring is working
780 *
781 * @rdev: radeon_device pointer
782 * @ring: the engine to test on
783 *
784 */
785int radeon_vce_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
786{
787 uint32_t rptr = vce_v1_0_get_rptr(rdev, ring);
788 unsigned i;
789 int r;
790
791 r = radeon_ring_lock(rdev, ring, 16);
792 if (r) {
793 DRM_ERROR("radeon: vce failed to lock ring %d (%d).\n",__drm_err("radeon: vce failed to lock ring %d (%d).\n", ring->
idx, r)
794 ring->idx, r)__drm_err("radeon: vce failed to lock ring %d (%d).\n", ring->
idx, r);
795 return r;
796 }
797 radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END)((__uint32_t)(0x00000001)));
798 radeon_ring_unlock_commit(rdev, ring, false0);
799
800 for (i = 0; i < rdev->usec_timeout; i++) {
801 if (vce_v1_0_get_rptr(rdev, ring) != rptr)
802 break;
803 udelay(1);
804 }
805
806 if (i < rdev->usec_timeout) {
807 DRM_INFO("ring test on %d succeeded in %d usecs\n",printk("\0016" "[" "drm" "] " "ring test on %d succeeded in %d usecs\n"
, ring->idx, i)
808 ring->idx, i)printk("\0016" "[" "drm" "] " "ring test on %d succeeded in %d usecs\n"
, ring->idx, i);
809 } else {
810 DRM_ERROR("radeon: ring %d test failed\n",__drm_err("radeon: ring %d test failed\n", ring->idx)
811 ring->idx)__drm_err("radeon: ring %d test failed\n", ring->idx);
812 r = -ETIMEDOUT60;
813 }
814
815 return r;
816}
817
818/**
819 * radeon_vce_ib_test - test if VCE IBs are working
820 *
821 * @rdev: radeon_device pointer
822 * @ring: the engine to test on
823 *
824 */
825int radeon_vce_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
826{
827 struct radeon_fence *fence = NULL((void *)0);
828 int r;
829
830 r = radeon_vce_get_create_msg(rdev, ring->idx, 1, NULL((void *)0));
831 if (r) {
832 DRM_ERROR("radeon: failed to get create msg (%d).\n", r)__drm_err("radeon: failed to get create msg (%d).\n", r);
833 goto error;
834 }
835
836 r = radeon_vce_get_destroy_msg(rdev, ring->idx, 1, &fence);
837 if (r) {
838 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r)__drm_err("radeon: failed to get destroy ib (%d).\n", r);
839 goto error;
840 }
841
842 r = radeon_fence_wait_timeout(fence, false0, usecs_to_jiffies((((uint64_t)(1000000)) * hz / 1000000)
843 RADEON_USEC_IB_TEST_TIMEOUT)(((uint64_t)(1000000)) * hz / 1000000));
844 if (r < 0) {
845 DRM_ERROR("radeon: fence wait failed (%d).\n", r)__drm_err("radeon: fence wait failed (%d).\n", r);
846 } else if (r == 0) {
847 DRM_ERROR("radeon: fence wait timed out.\n")__drm_err("radeon: fence wait timed out.\n");
848 r = -ETIMEDOUT60;
849 } else {
850 DRM_INFO("ib test on ring %d succeeded\n", ring->idx)printk("\0016" "[" "drm" "] " "ib test on ring %d succeeded\n"
, ring->idx);
851 r = 0;
852 }
853error:
854 radeon_fence_unref(&fence);
855 return r;
856}