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drm/vmwgfx: Introduce VMware mks-guest-stats

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VMware mks-guest-stats mechanism allows the collection of performance stats from
guest userland GL contexts, as well as from vmwgfx kernelspace, via a set of sw-
defined performance counters. The userspace performance counters are (de)registerd
with vmware-vmx-stats hypervisor via new iocts. The vmwgfx kernelspace counters
are controlled at build-time via a new config DRM_VMWGFX_MKSSTATS.

* Add vmw_mksstat_{add|remove|reset}_ioctl controlling the tracking of
  mks-guest-stats in guest winsys contexts
* Add DRM_VMWGFX_MKSSTATS config to drivers/gpu/drm/vmwgfx/Kconfig controlling
  the instrumentation of vmwgfx for kernelspace mks-guest-stats counters
* Instrument vmwgfx vmw_execbuf_ioctl to collect mks-guest-stats according to
  DRM_VMWGFX_MKSSTATS

Signed-off-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210609172307.131929-3-zackr@vmware.com
This commit is contained in:
Martin Krastev
2021-06-09 13:23:00 -04:00
committed by Zack Rusin
parent d92223ead9
commit 7a7a933edd
9 changed files with 919 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
include/uapi/drm/vmwgfx_drm.h
View File

@@ -72,6 +72,9 @@ extern "C" {
#define DRM_VMW_GB_SURFACE_CREATE_EXT 27
#define DRM_VMW_GB_SURFACE_REF_EXT 28
#define DRM_VMW_MSG 29
#define DRM_VMW_MKSSTAT_RESET 30
#define DRM_VMW_MKSSTAT_ADD 31
#define DRM_VMW_MKSSTAT_REMOVE 32
/*************************************************************************/
/**
@@ -1236,6 +1239,44 @@ struct drm_vmw_msg_arg {
__u32 receive_len;
};
/**
* struct drm_vmw_mksstat_add_arg
*
* @stat: Pointer to user-space stat-counters array, page-aligned.
* @info: Pointer to user-space counter-infos array, page-aligned.
* @strs: Pointer to user-space stat strings, page-aligned.
* @stat_len: Length in bytes of stat-counters array.
* @info_len: Length in bytes of counter-infos array.
* @strs_len: Length in bytes of the stat strings, terminators included.
* @description: Pointer to instance descriptor string; will be truncated
* to MKS_GUEST_STAT_INSTANCE_DESC_LENGTH chars.
* @id: Output identifier of the produced record; -1 if error.
*
* Argument to the DRM_VMW_MKSSTAT_ADD ioctl.
*/
struct drm_vmw_mksstat_add_arg {
__u64 stat;
__u64 info;
__u64 strs;
__u64 stat_len;
__u64 info_len;
__u64 strs_len;
__u64 description;
__u64 id;
};
/**
* struct drm_vmw_mksstat_remove_arg
*
* @id: Identifier of the record being disposed, originally obtained through
* DRM_VMW_MKSSTAT_ADD ioctl.
*
* Argument to the DRM_VMW_MKSSTAT_REMOVE ioctl.
*/
struct drm_vmw_mksstat_remove_arg {
__u64 id;
};
#if defined(__cplusplus)
}
#endif