On 07.05.2015 19:13, Marek Olšák wrote:
Ping
On Wed, Apr 29, 2015 at 7:40 PM, Marek Olšák maraeo@gmail.com wrote:
From: Marek Olšák marek.olsak@amd.com
Userspace will be able to tell whether a GPU reset occured by comparing an old referece value of the counter with a new value.
Signed-off-by: Marek Olšák marek.olsak@amd.com
Reviewed-by: Christian König christian.koenig@amd.com
drivers/gpu/drm/radeon/radeon.h | 1 + drivers/gpu/drm/radeon/radeon_device.c | 2 ++ drivers/gpu/drm/radeon/radeon_drv.c | 3 ++- drivers/gpu/drm/radeon/radeon_kms.c | 3 +++ include/uapi/drm/radeon_drm.h | 1 + 5 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index d2abe48..c2b345a 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2436,6 +2436,7 @@ struct radeon_device { atomic64_t vram_usage; atomic64_t gtt_usage; atomic64_t num_bytes_moved;
atomic_t gpu_reset_counter; /* ACPI interface */ struct radeon_atif atif; struct radeon_atcs atcs;diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index b7ca4c5..13e207e 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1725,6 +1725,8 @@ int radeon_gpu_reset(struct radeon_device *rdev) return 0; }
atomic_inc(&rdev->gpu_reset_counter);radeon_save_bios_scratch_regs(rdev); /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 7d620d4..5751446 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -90,9 +90,10 @@
CS to GPU on >= r600- 2.41.0 - evergreen/cayman: Add SET_BASE/DRAW_INDIRECT command parsing support
- 2.42.0 - Add VCE/VUI (Video Usability Information) support
*/ #define KMS_DRIVER_MAJOR 2
- 2.43.0 - RADEON_INFO_GPU_RESET_COUNTER
-#define KMS_DRIVER_MINOR 42 +#define KMS_DRIVER_MINOR 43 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 7b2a733..9632e88 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -576,6 +576,9 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (radeon_get_allowed_info_register(rdev, *value, value)) return -EINVAL; break;
case RADEON_INFO_GPU_RESET_COUNTER:*value = atomic_read(&rdev->gpu_reset_counter);break; default: DRM_DEBUG_KMS("Invalid request %d\n", info->request); return -EINVAL;diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h index 871e73f..573cb86 100644 --- a/include/uapi/drm/radeon_drm.h +++ b/include/uapi/drm/radeon_drm.h @@ -1038,6 +1038,7 @@ struct drm_radeon_cs { #define RADEON_INFO_CURRENT_GPU_SCLK 0x22 #define RADEON_INFO_CURRENT_GPU_MCLK 0x23 #define RADEON_INFO_READ_REG 0x24 +#define RADEON_INFO_GPU_RESET_COUNTER 0x25
struct drm_radeon_info { uint32_t request; -- 2.1.0
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