This change seems to be breaking the build for me. I'm getting errors like this:
CC [M] drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.o
In file included from ../include/trace/events/tlb.h:9:0,
from ../arch/x86/include/asm/mmu_context.h:10,
from ../include/linux/mmu_context.h:5,
from ../drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h:30,
from ../drivers/gpu/drm/amd/amdgpu/amdgpu.h:85,
from ../drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:34:
../include/linux/tracepoint.h:285:20: error: redefinition of â__tpstrtab_amdgpu_dc_rregâ
static const char __tpstrtab_##name[] \
^
../include/linux/tracepoint.h:293:2: note: in expansion of macro âDEFINE_TRACE_FNâ
DEFINE_TRACE_FN(name, NULL, NULL);
^
../include/trace/define_trace.h:28:2: note: in expansion of macro âDEFINE_TRACEâ
DEFINE_TRACE(name)
^
../drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/./amdgpu_dm_trace.h:34:1: note: in expansion of macro âTRACE_EVENTâ
TRACE_EVENT(amdgpu_dc_rreg,
^
I have a local change that adds #include <amdgpu_amdkfd.h> to amdgpu.h, which pulls in include/trace/events/tlb.h. That seems to create some kind of conflict with trace definitions. Any ideas how to fix this? It seems a bit fragile if adding some random include can break the build like this.
Thanks,
Felix
-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of David Francis
Sent: Friday, November 30, 2018 9:57 AM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Francis, David <David.Francis@xxxxxxx>
Subject: [PATCH 04/16 v2] drm/amd/display: Add tracing to dc
[Why]
Tracing is a useful and cheap debug functionality
[How]
This creates a new trace system amdgpu_dm, currently with three trace events
amdgpu_dc_rreg and amdgpu_dc_wreg report the address and value of any dc register reads and writes
amdgpu_dc_performance requires at least one of those two to be enabled. It counts the register reads and writes since the last entry
v2: Don't check for NULL before kfree
Signed-off-by: David Francis <David.Francis@xxxxxxx>
Reviewed-by: Harry Wentland <Harry.Wentland@xxxxxxx>
Acked-by: Leo Li <sunpeng.li@xxxxxxx>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +
.../amd/display/amdgpu_dm/amdgpu_dm_trace.h | 104 ++++++++++++++++++
drivers/gpu/drm/amd/display/dc/core/dc.c | 19 ++++
drivers/gpu/drm/amd/display/dc/dc_types.h | 8 ++
.../amd/display/dc/dcn10/dcn10_cm_common.c | 4 +-
drivers/gpu/drm/amd/display/dc/dm_services.h | 12 +-
6 files changed, 146 insertions(+), 4 deletions(-) create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 76b1aebdca0c..376927c8bcc6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -23,6 +23,9 @@
*
*/
+/* The caprices of the preprocessor require that this be declared right
+here */ #define CREATE_TRACE_POINTS
+
#include "dm_services_types.h"
#include "dc.h"
#include "dc/inc/core_types.h"
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
new file mode 100644
index 000000000000..d898981684d5
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person
+obtaining a
+ * copy of this software and associated documentation files (the
+"Software"),
+ * to deal in the Software without restriction, including without
+limitation
+ * the rights to use, copy, modify, merge, publish, distribute,
+sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom
+the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM,
+DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
+OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM amdgpu_dm
+
+#if !defined(_AMDGPU_DM_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _AMDGPU_DM_TRACE_H_
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(amdgpu_dc_rreg,
+ TP_PROTO(unsigned long *read_count, uint32_t reg, uint32_t value),
+ TP_ARGS(read_count, reg, value),
+ TP_STRUCT__entry(
+ __field(uint32_t, reg)
+ __field(uint32_t, value)
+ ),
+ TP_fast_assign(
+ __entry->reg = reg;
+ __entry->value = value;
+ *read_count = *read_count + 1;
+ ),
+ TP_printk("reg=0x%08lx, value=0x%08lx",
+ (unsigned long)__entry->reg,
+ (unsigned long)__entry->value)
+);
+
+TRACE_EVENT(amdgpu_dc_wreg,
+ TP_PROTO(unsigned long *write_count, uint32_t reg, uint32_t value),
+ TP_ARGS(write_count, reg, value),
+ TP_STRUCT__entry(
+ __field(uint32_t, reg)
+ __field(uint32_t, value)
+ ),
+ TP_fast_assign(
+ __entry->reg = reg;
+ __entry->value = value;
+ *write_count = *write_count + 1;
+ ),
+ TP_printk("reg=0x%08lx, value=0x%08lx",
+ (unsigned long)__entry->reg,
+ (unsigned long)__entry->value)
+);
+
+
+TRACE_EVENT(amdgpu_dc_performance,
+ TP_PROTO(unsigned long read_count, unsigned long write_count,
+ unsigned long *last_read, unsigned long *last_write,
+ const char *func, unsigned int line),
+ TP_ARGS(read_count, write_count, last_read, last_write, func, line),
+ TP_STRUCT__entry(
+ __field(uint32_t, reads)
+ __field(uint32_t, writes)
+ __field(uint32_t, read_delta)
+ __field(uint32_t, write_delta)
+ __string(func, func)
+ __field(uint32_t, line)
+ ),
+ TP_fast_assign(
+ __entry->reads = read_count;
+ __entry->writes = write_count;
+ __entry->read_delta = read_count - *last_read;
+ __entry->write_delta = write_count - *last_write;
+ __assign_str(func, func);
+ __entry->line = line;
+ *last_read = read_count;
+ *last_write = write_count;
+ ),
+ TP_printk("%s:%d reads=%08ld (%08ld total), writes=%08ld (%08ld total)",
+ __get_str(func), __entry->line,
+ (unsigned long)__entry->read_delta,
+ (unsigned long)__entry->reads,
+ (unsigned long)__entry->write_delta,
+ (unsigned long)__entry->writes)
+);
+#endif /* _AMDGPU_DM_TRACE_H_ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE amdgpu_dm_trace #include
+<trace/define_trace.h>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index dba6b57830c7..3903b2c0a6f1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -175,6 +175,17 @@ static bool create_links(
return false;
}
+static struct dc_perf_trace *dc_perf_trace_create(void) {
+ return kzalloc(sizeof(struct dc_perf_trace), GFP_KERNEL); }
+
+static void dc_perf_trace_destroy(struct dc_perf_trace **perf_trace) {
+ kfree(*perf_trace);
+ *perf_trace = NULL;
+}
+
/**
*****************************************************************************
* Function: dc_stream_adjust_vmin_vmax @@ -536,6 +547,8 @@ static void destruct(struct dc *dc)
if (dc->ctx->created_bios)
dal_bios_parser_destroy(&dc->ctx->dc_bios);
+ dc_perf_trace_destroy(&dc->ctx->perf_trace);
+
kfree(dc->ctx);
dc->ctx = NULL;
@@ -659,6 +672,12 @@ static bool construct(struct dc *dc,
goto fail;
}
+ dc_ctx->perf_trace = dc_perf_trace_create();
+ if (!dc_ctx->perf_trace) {
+ ASSERT_CRITICAL(false);
+ goto fail;
+ }
+
/* Create GPIO service */
dc_ctx->gpio_service = dal_gpio_service_create(
dc_version,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 6e12d640d020..8390baedaf71 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -73,10 +73,18 @@ struct hw_asic_id {
void *atombios_base_address;
};
+struct dc_perf_trace {
+ unsigned long read_count;
+ unsigned long write_count;
+ unsigned long last_entry_read;
+ unsigned long last_entry_write;
+};
+
struct dc_context {
struct dc *dc;
void *driver_context; /* e.g. amdgpu_device */
+ struct dc_perf_trace *perf_trace;
void *cgs_device;
enum dce_environment dce_environment;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c
index 3eea44092a04..7469333a2c8a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_cm_common.c
@@ -324,7 +324,7 @@ bool cm_helper_translate_curve_to_hw_format(
if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
return false;
- PERF_TRACE();
+ PERF_TRACE_CTX(output_tf->ctx);
corner_points = lut_params->corner_points;
rgb_resulted = lut_params->rgb_resulted; @@ -513,7 +513,7 @@ bool cm_helper_translate_curve_to_degamma_hw_format(
if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
return false;
- PERF_TRACE();
+ PERF_TRACE_CTX(output_tf->ctx);
corner_points = lut_params->corner_points;
rgb_resulted = lut_params->rgb_resulted; diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h
index 28128c02de00..1961cc6d9143 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_services.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
@@ -31,6 +31,8 @@
#define __DM_SERVICES_H__
+#include "amdgpu_dm_trace.h"
+
/* TODO: remove when DC is complete. */ #include "dm_services_types.h"
#include "logger_interface.h"
@@ -70,6 +72,7 @@ static inline uint32_t dm_read_reg_func(
}
#endif
value = cgs_read_register(ctx->cgs_device, address);
+ trace_amdgpu_dc_rreg(&ctx->perf_trace->read_count, address, value);
return value;
}
@@ -90,6 +93,7 @@ static inline void dm_write_reg_func(
}
#endif
cgs_write_register(ctx->cgs_device, address, value);
+ trace_amdgpu_dc_wreg(&ctx->perf_trace->write_count, address, value);
}
static inline uint32_t dm_read_index_reg( @@ -351,8 +355,12 @@ unsigned long long dm_get_elapse_time_in_ns(struct dc_context *ctx,
/*
* performance tracing
*/
-void dm_perf_trace_timestamp(const char *func_name, unsigned int line);
-#define PERF_TRACE() dm_perf_trace_timestamp(__func__, __LINE__)
+#define PERF_TRACE() trace_amdgpu_dc_performance(CTX->perf_trace->read_count,\
+ CTX->perf_trace->write_count, &CTX->perf_trace->last_entry_read,\
+ &CTX->perf_trace->last_entry_write, __func__, __LINE__)
+#define PERF_TRACE_CTX(__CTX) trace_amdgpu_dc_performance(__CTX->perf_trace->read_count,\
+ __CTX->perf_trace->write_count, &__CTX->perf_trace->last_entry_read,\
+ &__CTX->perf_trace->last_entry_write, __func__, __LINE__)
/*
--
2.17.1
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