[PATCH 5/6] drm/msm: Add MSM_PARAM_RAYTRACING uapi

Connor Abbott
2024-04-25T13:44:51Z

Expose the value of the software fuse to userspace.

Signed-off-by: Connor Abbott <cwabbott0@gmail.com>
---
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 +++
include/uapi/drm/msm_drm.h | 1 +
2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 074fb498706f..99ad651857b2 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -376,6 +376,9 @@ int adreno_get_param(struct msm_gpu *gpu, struct msm_file_private *ctx,
case MSM_PARAM_HIGHEST_BANK_BIT:
*value = adreno_gpu->ubwc_config.highest_bank_bit;
return 0;
+ case MSM_PARAM_RAYTRACING:
+ *value = adreno_gpu->has_ray_tracing;
+ return 0;
default:
DBG("%s: invalid param: %u", gpu->name, param);
return -EINVAL;
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index d8a6b3472760..3fca72f73861 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -87,6 +87,7 @@ struct drm_msm_timespec {
#define MSM_PARAM_VA_START 0x0e /* RO: start of valid GPU iova range */
#define MSM_PARAM_VA_SIZE 0x0f /* RO: size of valid GPU iova range (bytes) */
#define MSM_PARAM_HIGHEST_BANK_BIT 0x10 /* RO */
+#define MSM_PARAM_RAYTRACING 0x11 /* RO */

/* For backwards compat. The original support for preemption was based on
* a single ring per priority level so # of priority levels equals the #
--
2.31.1