From: Sean Paul <seanp...@chromium.org>
I found these tracepoints useful for debugging cursor/ctl, someone else
might find them useful too
Signed-off-by: Sean Paul <seanp...@chromium.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 26 ++++++++----
drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 47 ++++++++++++++++++++++
2 files changed, 65 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
index b394a1818c5d..3f50164ad30e 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -15,6 +15,7 @@
#include "dpu_hw_ctl.h"
#include "dpu_dbg.h"
#include "dpu_kms.h"
+#include "dpu_trace.h"
#define CTL_LAYER(lm) \
(((lm) == LM_5) ? (0x024) : (((lm) - LM_0) * 0x004))
@@ -72,24 +73,39 @@ static int _mixer_stages(const struct dpu_lm_cfg *mixer,
int count,
return stages;
}
+static inline u32 dpu_hw_ctl_get_flush_register(struct dpu_hw_ctl *ctx)
+{
+ struct dpu_hw_blk_reg_map *c = &ctx->hw;
+
+ return DPU_REG_READ(c, CTL_FLUSH);
+}
+
static inline void dpu_hw_ctl_trigger_start(struct dpu_hw_ctl *ctx)
{
+ trace_dpu_hw_ctl_trigger_start(ctx->pending_flush_mask,
+ dpu_hw_ctl_get_flush_register(ctx));
DPU_REG_WRITE(&ctx->hw, CTL_START, 0x1);
}
static inline void dpu_hw_ctl_trigger_pending(struct dpu_hw_ctl *ctx)
{
+ trace_dpu_hw_ctl_trigger_prepare(ctx->pending_flush_mask,
+ dpu_hw_ctl_get_flush_register(ctx));
DPU_REG_WRITE(&ctx->hw, CTL_PREPARE, 0x1);
}
static inline void dpu_hw_ctl_clear_pending_flush(struct dpu_hw_ctl *ctx)
{
+ trace_dpu_hw_ctl_clear_pending_flush(ctx->pending_flush_mask,
+ dpu_hw_ctl_get_flush_register(ctx));
ctx->pending_flush_mask = 0x0;
}
static inline void dpu_hw_ctl_update_pending_flush(struct dpu_hw_ctl *ctx,
u32 flushbits)
{
+ trace_dpu_hw_ctl_update_pending_flush(flushbits,
+ ctx->pending_flush_mask);
ctx->pending_flush_mask |= flushbits;
}
@@ -103,17 +119,11 @@ static u32 dpu_hw_ctl_get_pending_flush(struct dpu_hw_ctl
*ctx)
static inline void dpu_hw_ctl_trigger_flush(struct dpu_hw_ctl *ctx)
{
-
+ trace_dpu_hw_ctl_trigger_pending_flush(ctx->pending_flush_mask,
+ dpu_hw_ctl_get_flush_register(ctx));
DPU_REG_WRITE(&ctx->hw, CTL_FLUSH, ctx->pending_flush_mask);
}
-static inline u32 dpu_hw_ctl_get_flush_register(struct dpu_hw_ctl *ctx)
-{
- struct dpu_hw_blk_reg_map *c = &ctx->hw;
-
- return DPU_REG_READ(c, CTL_FLUSH);
-}
-
static inline uint32_t dpu_hw_ctl_get_bitmask_sspp(struct dpu_hw_ctl *ctx,
enum dpu_sspp sspp)
{
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
index e12c4cefb742..636b31b0d311 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
@@ -1004,6 +1004,53 @@ TRACE_EVENT(dpu_core_perf_update_clk,
__entry->stop_req ? "true" : "false", __entry->clk_rate)
);
+TRACE_EVENT(dpu_hw_ctl_update_pending_flush,
+ TP_PROTO(u32 new_bits, u32 pending_mask),
+ TP_ARGS(new_bits, pending_mask),
+ TP_STRUCT__entry(
+ __field( u32, new_bits )
+ __field( u32, pending_mask )
+ ),
+ TP_fast_assign(
+ __entry->new_bits = new_bits;
+ __entry->pending_mask = pending_mask;
+ ),
+ TP_printk("new=%x existing=%x", __entry->new_bits,
+ __entry->pending_mask)
+);
+
+DECLARE_EVENT_CLASS(dpu_hw_ctl_pending_flush_template,
+ TP_PROTO(u32 pending_mask, u32 ctl_flush),
+ TP_ARGS(pending_mask, ctl_flush),
+ TP_STRUCT__entry(
+ __field( u32, pending_mask )
+ __field( u32, ctl_flush )
+ ),
+ TP_fast_assign(
+ __entry->pending_mask = pending_mask;
+ __entry->ctl_flush = ctl_flush;
+ ),
+ TP_printk("pending_mask=%x CTL_FLUSH=%x", __entry->pending_mask,
+ __entry->ctl_flush)
+);
+DEFINE_EVENT(dpu_hw_ctl_pending_flush_template, dpu_hw_ctl_clear_pending_flush,
+ TP_PROTO(u32 pending_mask, u32 ctl_flush),
+ TP_ARGS(pending_mask, ctl_flush)
+);
+DEFINE_EVENT(dpu_hw_ctl_pending_flush_template,
+ dpu_hw_ctl_trigger_pending_flush,
+ TP_PROTO(u32 pending_mask, u32 ctl_flush),
+ TP_ARGS(pending_mask, ctl_flush)
+);
+DEFINE_EVENT(dpu_hw_ctl_pending_flush_template, dpu_hw_ctl_trigger_prepare,
+ TP_PROTO(u32 pending_mask, u32 ctl_flush),
+ TP_ARGS(pending_mask, ctl_flush)
+);
+DEFINE_EVENT(dpu_hw_ctl_pending_flush_template, dpu_hw_ctl_trigger_start,
+ TP_PROTO(u32 pending_mask, u32 ctl_flush),
+ TP_ARGS(pending_mask, ctl_flush)
+);
+
#define DPU_ATRACE_END(name) trace_tracing_mark_write(current->tgid, name, 0)
#define DPU_ATRACE_BEGIN(name) trace_tracing_mark_write(current->tgid, name, 1)
#define DPU_ATRACE_FUNC() DPU_ATRACE_BEGIN(__func__)
--
Sean Paul, Software Engineer, Google / Chromium OS
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