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Commit 1ff6f9bc authored by Sharat Masetty's avatar Sharat Masetty
Browse files

drm/msm: Add API support for getting GPU hang timeout 



Userspace needs to know the GPU timeout value to support Khronos robust
GPU timeout extension. The timeout value is returned to the user in
millisecond resolution.

Change-Id: Iba2ff43fce6d21da240356b392afa7a6e7a618ad
Signed-off-by: default avatarSharat Masetty <smasetty@codeaurora.org>
parent ce488494

drivers/gpu/drm/msm/adreno/adreno_gpu.c

+3 −0
Original line number Diff line number Diff line
@@ -61,6 +61,9 @@ int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value) 
	case MSM_PARAM_NR_RINGS:

		*value = gpu->nr_rings;

		return 0;

	case MSM_PARAM_GPU_HANG_TIMEOUT:

		*value = DRM_MSM_HANGCHECK_PERIOD;

		return 0;

	default:

		DBG("%s: invalid param: %u", gpu->name, param);

		return -EINVAL;

include/uapi/drm/msm_drm.h

+8 −7
Original line number Diff line number Diff line
@@ -119,6 +119,7 @@ struct drm_msm_ext_panel_hdr_properties { 
#define MSM_PARAM_TIMESTAMP          0x05

#define MSM_PARAM_GMEM_BASE          0x06

#define MSM_PARAM_NR_RINGS           0x07

#define MSM_PARAM_GPU_HANG_TIMEOUT   0xa0 /* timeout in ms */



struct drm_msm_param {

	__u32 pipe;           /* in, MSM_PIPE_x */