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drm/v3d: Add DRM_IOCTL_V3D_PERFMON_SET_GLOBAL

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Add a new ioctl, DRM_IOCTL_V3D_PERFMON_SET_GLOBAL, to allow
configuration of a global performance monitor (perfmon).
Use the global perfmon for all jobs to ensure consistent
performance tracking across submissions. This feature is
needed to implement a Perfetto datasources in user-space.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241202140615.74802-1-christian.gmeiner@gmail.com
This commit is contained in:
Christian Gmeiner
2024-12-02 15:06:13 +01:00
committed by Maíra Canal
parent f3c03be182
commit c6eabbab35
6 changed files with 85 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
include/uapi/drm/v3d_drm.h
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@@ -43,6 +43,7 @@ extern "C" {
#define DRM_V3D_PERFMON_GET_VALUES 0x0a
#define DRM_V3D_SUBMIT_CPU 0x0b
#define DRM_V3D_PERFMON_GET_COUNTER 0x0c
#define DRM_V3D_PERFMON_SET_GLOBAL 0x0d
#define DRM_IOCTL_V3D_SUBMIT_CL DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CL, struct drm_v3d_submit_cl)
#define DRM_IOCTL_V3D_WAIT_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_WAIT_BO, struct drm_v3d_wait_bo)
@@ -61,6 +62,8 @@ extern "C" {
#define DRM_IOCTL_V3D_SUBMIT_CPU DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_SUBMIT_CPU, struct drm_v3d_submit_cpu)
#define DRM_IOCTL_V3D_PERFMON_GET_COUNTER DRM_IOWR(DRM_COMMAND_BASE + DRM_V3D_PERFMON_GET_COUNTER, \
struct drm_v3d_perfmon_get_counter)
#define DRM_IOCTL_V3D_PERFMON_SET_GLOBAL DRM_IOW(DRM_COMMAND_BASE + DRM_V3D_PERFMON_SET_GLOBAL, \
struct drm_v3d_perfmon_set_global)
#define DRM_V3D_SUBMIT_CL_FLUSH_CACHE 0x01
#define DRM_V3D_SUBMIT_EXTENSION 0x02
@@ -766,6 +769,21 @@ struct drm_v3d_perfmon_get_counter {
__u8 reserved[7];
};
#define DRM_V3D_PERFMON_CLEAR_GLOBAL 0x0001
/**
* struct drm_v3d_perfmon_set_global - ioctl to define a global performance
* monitor
*
* The global performance monitor will be used for all jobs. If a global
* performance monitor is defined, jobs with a self-defined performance
* monitor won't be allowed.
*/
struct drm_v3d_perfmon_set_global {
__u32 flags;
__u32 id;
};
#if defined(__cplusplus)
}
#endif