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authorChristian Gmeiner <christian.gmeiner@gmail.com>2017-09-24 15:15:22 +0200
committerLucas Stach <l.stach@pengutronix.de>2017-10-10 11:45:41 +0200
commit05916bed11b6d4c61b473a76220151a7d0547164 (patch)
tree88b4d21e689e51400c3b5bc419dd97ada5be32e2 /include/uapi/drm
parent9e2c2e27301266dee805dda2e6d171931d752087 (diff)
drm/etnaviv: add uapi for perfmon feature
Sadly we can not read any registers via command stream so we need to extend the drm_etnaviv_gem_submit struct with performance monitor requests. Those requests gets process before or after the actual submitted command stream. The Vivante kernel driver has a special ioctl to read all perfmon registers at once and return it. Changes from v1 -> v2: - use a 16 bit value for signals - fix padding issues Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'include/uapi/drm')
-rw-r--r--include/uapi/drm/etnaviv_drm.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index c065c8308bbd..110cc73bf549 100644
--- a/include/uapi/drm/etnaviv_drm.h
+++ b/include/uapi/drm/etnaviv_drm.h
@@ -150,6 +150,19 @@ struct drm_etnaviv_gem_submit_bo {
__u64 presumed; /* in/out, presumed buffer address */
};
+/* performance monitor request (pmr) */
+#define ETNA_PM_PROCESS_PRE 0x0001
+#define ETNA_PM_PROCESS_POST 0x0002
+struct drm_etnaviv_gem_submit_pmr {
+ __u32 flags; /* in, when to process request (ETNA_PM_PROCESS_x) */
+ __u8 domain; /* in, pm domain */
+ __u8 pad;
+ __u16 signal; /* in, pm signal */
+ __u32 sequence; /* in, sequence number */
+ __u32 read_offset; /* in, offset from read_bo */
+ __u32 read_idx; /* in, index of read_bo buffer */
+};
+
/* Each cmdstream submit consists of a table of buffers involved, and
* one or more cmdstream buffers. This allows for conditional execution
* (context-restore), and IB buffers needed for per tile/bin draw cmds.
@@ -175,6 +188,9 @@ struct drm_etnaviv_gem_submit {
__u64 stream; /* in, ptr to cmdstream */
__u32 flags; /* in, mask of ETNA_SUBMIT_x */
__s32 fence_fd; /* in/out, fence fd (see ETNA_SUBMIT_FENCE_FD_x) */
+ __u64 pmrs; /* in, ptr to array of submit_pmr's */
+ __u32 nr_pmrs; /* in, number of submit_pmr's */
+ __u32 pad;
};
/* The normal way to synchronize with the GPU is just to CPU_PREP on

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