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GPU (Linux): correctly call radeon driver

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This commit is contained in:
李通洲
2025-06-19 15:43:37 +08:00
parent 4f42d38e4d
commit c377872438
1 changed files with 28 additions and 17 deletions
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src/detection/gpu/gpu_drm.c
+28 -17
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@@ -19,32 +19,43 @@ const char* ffDrmDetectRadeon(const FFGPUOptions* options, FFGPUResult* gpu, con
FF_AUTO_CLOSE_FD int fd = open(renderPath, O_RDONLY);
if (fd < 0) return "Failed to open DRM render device";
struct drm_radeon_info info;
info.request = RADEON_INFO_ACTIVE_CU_COUNT;
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &info) >= 0)
gpu->coreCount = (int32_t) info.value;
uint32_t value;
// https://github.com/torvalds/linux/blob/fb4d33ab452ea254e2c319bac5703d1b56d895bf/drivers/gpu/drm/radeon/radeon_kms.c#L231
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &(struct drm_radeon_info) {
.request = RADEON_INFO_ACTIVE_CU_COUNT,
.value = (uintptr_t) &value,
}) >= 0)
gpu->coreCount = (int32_t) value;
if (options->temp)
{
info.request = RADEON_INFO_CURRENT_GPU_TEMP; // millidegrees C
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &info) >= 0)
gpu->temperature = (double) info.value / 1000.0;
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &(struct drm_radeon_info) {
.request = RADEON_INFO_CURRENT_GPU_TEMP, // millidegrees C
.value = (uintptr_t) &value,
}) >= 0 && value != 0) // 0 means unavailable
gpu->temperature = (double) value / 1000.0;
}
info.request = RADEON_INFO_MAX_SCLK; // MHz
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &info) >= 0)
gpu->frequency = (uint32_t) (info.value / 1000u);
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &(struct drm_radeon_info) {
.request = RADEON_INFO_MAX_SCLK, // MHz
.value = (uintptr_t) &value,
}) >= 0)
gpu->frequency = (uint32_t) (value / 1000u);
struct drm_radeon_gem_info gemInfo;
if (ioctl(fd, DRM_IOCTL_RADEON_GEM_INFO, &gemInfo) >= 0 && gemInfo.vram_visible > 0)
if (options->driverSpecific)
{
gpu->type = FF_GPU_TYPE_DISCRETE;
if (options->driverSpecific)
struct drm_radeon_gem_info gemInfo;
if (ioctl(fd, DRM_IOCTL_RADEON_GEM_INFO, &gemInfo) >= 0 && gemInfo.vram_visible > 0)
{
gpu->dedicated.total = gemInfo.vram_visible;
info.request = RADEON_INFO_VRAM_USAGE;
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &info) >= 0)
gpu->dedicated.used = info.value;
uint64_t memSize;
if (ioctl(fd, DRM_IOCTL_RADEON_INFO, &(struct drm_radeon_info) {
.request = RADEON_INFO_VRAM_USAGE, // uint64_t
.value = (uintptr_t) &memSize,
}) >= 0)
gpu->dedicated.used = memSize;
}
}