Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next

Most notable addition this time is the support for the GPU performance
counters by Christian. This has been in the making for some time and it
has matured a lot. Since this is adding UAPI, the corresponding WIP
userspace can be found at [1] mesa/libdrm repos. I expect that
Christian sends out the final userspace patches for this once you have
pulled the kernel bits.

Philipp optimized the probe path, so etnaviv gets out of the way for
systems that want to boot real quick.

I've done mostly cleanups, disentangling etnaviv from the IOMMU API,
with some MMUv1 optimizations on the way.

* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: (36 commits)
  drm/etnaviv: remove unnecessary clock stabilization delay
  drm/etnaviv: reduce reset delay
  drm/etnaviv: remove unused function etnaviv_gem_new
  drm/etnaviv: remove stale comment
  drm/etnaviv: submit supports performance monitor requests
  drm/etnaviv: enable debug registers on demand
  drm/etnaviv: need to disable clock gating when doing profiling
  drm/etnaviv: add MC perf domain
  drm/etnaviv: add TX perf domain
  drm/etnaviv: add RA perf domain
  drm/etnaviv: add SE perf domain
  drm/etnaviv: add PA perf domain
  drm/etnaviv: add SH perf domain
  drm/etnaviv: add PE perf domain
  drm/etnaviv: add HI perf domain
  drm/etnaviv: use 'sync points' for performance monitor requests
  drm/etnaviv: clear alloced event
  drm/etnaviv: add 'sync point' support
  drm/etnaviv: add performance monitor request processing
  drm/etnaviv: copy pmrs from userspace
  ...

1 files changed, 42 insertions, 1 deletions

diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index 76f6f78a352b..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
@@ -210,6 +226,27 @@ struct drm_etnaviv_gem_wait {
 	struct drm_etnaviv_timespec timeout;	/* in */
 };
 
+/*
+ * Performance Monitor (PM):
+ */
+
+struct drm_etnaviv_pm_domain {
+	__u32 pipe;       /* in */
+	__u8  iter;       /* in/out, select pm domain at index iter */
+	__u8  id;         /* out, id of domain */
+	__u16 nr_signals; /* out, how many signals does this domain provide */
+	char  name[64];   /* out, name of domain */
+};
+
+struct drm_etnaviv_pm_signal {
+	__u32 pipe;       /* in */
+	__u8  domain;     /* in, pm domain index */
+	__u8  pad;
+	__u16 iter;       /* in/out, select pm source at index iter */
+	__u16 id;         /* out, id of signal */
+	char  name[64];   /* out, name of domain */
+};
+
 #define DRM_ETNAVIV_GET_PARAM          0x00
 /* placeholder:
 #define DRM_ETNAVIV_SET_PARAM          0x01
@@ -222,7 +259,9 @@ struct drm_etnaviv_gem_wait {
 #define DRM_ETNAVIV_WAIT_FENCE         0x07
 #define DRM_ETNAVIV_GEM_USERPTR        0x08
 #define DRM_ETNAVIV_GEM_WAIT           0x09
-#define DRM_ETNAVIV_NUM_IOCTLS         0x0a
+#define DRM_ETNAVIV_PM_QUERY_DOM       0x0a
+#define DRM_ETNAVIV_PM_QUERY_SIG       0x0b
+#define DRM_ETNAVIV_NUM_IOCTLS         0x0c
 
 #define DRM_IOCTL_ETNAVIV_GET_PARAM    DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GET_PARAM, struct drm_etnaviv_param)
 #define DRM_IOCTL_ETNAVIV_GEM_NEW      DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_NEW, struct drm_etnaviv_gem_new)
@@ -233,6 +272,8 @@ struct drm_etnaviv_gem_wait {
 #define DRM_IOCTL_ETNAVIV_WAIT_FENCE   DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_WAIT_FENCE, struct drm_etnaviv_wait_fence)
 #define DRM_IOCTL_ETNAVIV_GEM_USERPTR  DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_USERPTR, struct drm_etnaviv_gem_userptr)
 #define DRM_IOCTL_ETNAVIV_GEM_WAIT     DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_WAIT, struct drm_etnaviv_gem_wait)
+#define DRM_IOCTL_ETNAVIV_PM_QUERY_DOM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_DOM, struct drm_etnaviv_pm_domain)
+#define DRM_IOCTL_ETNAVIV_PM_QUERY_SIG DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_SIG, struct drm_etnaviv_pm_signal)
 
 #if defined(__cplusplus)
 }