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From: Takashi Iwai <tiwai@suse.de>
To: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] drm/amd/display: Clean up debug macros
Date: Fri, 23 Oct 2020 09:46:56 +0200	[thread overview]
Message-ID: <20201023074656.11855-4-tiwai@suse.de> (raw)
In-Reply-To: <20201023074656.11855-1-tiwai@suse.de>

This patch simplifies the ASSERT*() and BREAK_TO_DEBUGGER() macros:
- Move the dependency check of CONFIG_KGDB into Kconfig
- Unify the kgdb_breakpoint() call
- Drop the non-existing CONFIG_HAVE_KGDB

Also align the behavior of ASSERT() macro in both cases with and
without CONFIG_DEBUG_KERNEL_DC.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 drivers/gpu/drm/amd/display/Kconfig       |  1 +
 drivers/gpu/drm/amd/display/dc/os_types.h | 33 +++++++++++--------------------
 2 files changed, 13 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index f24abf428534..60dfdd432aba 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -42,6 +42,7 @@ config DRM_AMD_DC_SI
 config DEBUG_KERNEL_DC
 	bool "Enable kgdb break in DC"
 	depends on DRM_AMD_DC
+	depends on KGDB
 	help
 	  Choose this option if you want to hit kdgb_break in assert.
 
diff --git a/drivers/gpu/drm/amd/display/dc/os_types.h b/drivers/gpu/drm/amd/display/dc/os_types.h
index 32758b245754..95cb56929e79 100644
--- a/drivers/gpu/drm/amd/display/dc/os_types.h
+++ b/drivers/gpu/drm/amd/display/dc/os_types.h
@@ -94,36 +94,27 @@
  * general debug capabilities
  *
  */
-#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
-#define ASSERT_CRITICAL(expr) do {	\
-	if (WARN_ON(!(expr))) { \
-		kgdb_breakpoint(); \
-	} \
-} while (0)
+#ifdef CONFIG_DEBUG_KERNEL_DC
+#define dc_breakpoint()		kgdb_breakpoint()
 #else
-#define ASSERT_CRITICAL(expr) do {	\
-	if (WARN_ON(!(expr))) { \
-		; \
-	} \
-} while (0)
+#define dc_breakpoint()		do {} while (0)
 #endif
 
-#if defined(CONFIG_DEBUG_KERNEL_DC)
-#define ASSERT(expr) ASSERT_CRITICAL(expr)
+#define ASSERT_CRITICAL(expr) do {		\
+		if (WARN_ON(!(expr)))		\
+			dc_breakpoint();	\
+	} while (0)
 
-#else
-#define ASSERT(expr) WARN_ON_ONCE(!(expr))
-#endif
+#define ASSERT(expr) do {			\
+		if (WARN_ON_ONCE(!(expr)))	\
+			dc_breakpoint();	\
+	} while (0)
 
-#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
 #define BREAK_TO_DEBUGGER() \
 	do { \
 		DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__); \
-		kgdb_breakpoint(); \
+		dc_breakpoint(); \
 	} while (0)
-#else
-#define BREAK_TO_DEBUGGER() DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__)
-#endif
 
 #define DC_ERR(...)  do { \
 	dm_error(__VA_ARGS__); \
-- 
2.16.4


WARNING: multiple messages have this Message-ID (diff)
From: Takashi Iwai <tiwai@suse.de>
To: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org
Subject: [PATCH 3/3] drm/amd/display: Clean up debug macros
Date: Fri, 23 Oct 2020 09:46:56 +0200	[thread overview]
Message-ID: <20201023074656.11855-4-tiwai@suse.de> (raw)
In-Reply-To: <20201023074656.11855-1-tiwai@suse.de>

This patch simplifies the ASSERT*() and BREAK_TO_DEBUGGER() macros:
- Move the dependency check of CONFIG_KGDB into Kconfig
- Unify the kgdb_breakpoint() call
- Drop the non-existing CONFIG_HAVE_KGDB

Also align the behavior of ASSERT() macro in both cases with and
without CONFIG_DEBUG_KERNEL_DC.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 drivers/gpu/drm/amd/display/Kconfig       |  1 +
 drivers/gpu/drm/amd/display/dc/os_types.h | 33 +++++++++++--------------------
 2 files changed, 13 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index f24abf428534..60dfdd432aba 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -42,6 +42,7 @@ config DRM_AMD_DC_SI
 config DEBUG_KERNEL_DC
 	bool "Enable kgdb break in DC"
 	depends on DRM_AMD_DC
+	depends on KGDB
 	help
 	  Choose this option if you want to hit kdgb_break in assert.
 
diff --git a/drivers/gpu/drm/amd/display/dc/os_types.h b/drivers/gpu/drm/amd/display/dc/os_types.h
index 32758b245754..95cb56929e79 100644
--- a/drivers/gpu/drm/amd/display/dc/os_types.h
+++ b/drivers/gpu/drm/amd/display/dc/os_types.h
@@ -94,36 +94,27 @@
  * general debug capabilities
  *
  */
-#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
-#define ASSERT_CRITICAL(expr) do {	\
-	if (WARN_ON(!(expr))) { \
-		kgdb_breakpoint(); \
-	} \
-} while (0)
+#ifdef CONFIG_DEBUG_KERNEL_DC
+#define dc_breakpoint()		kgdb_breakpoint()
 #else
-#define ASSERT_CRITICAL(expr) do {	\
-	if (WARN_ON(!(expr))) { \
-		; \
-	} \
-} while (0)
+#define dc_breakpoint()		do {} while (0)
 #endif
 
-#if defined(CONFIG_DEBUG_KERNEL_DC)
-#define ASSERT(expr) ASSERT_CRITICAL(expr)
+#define ASSERT_CRITICAL(expr) do {		\
+		if (WARN_ON(!(expr)))		\
+			dc_breakpoint();	\
+	} while (0)
 
-#else
-#define ASSERT(expr) WARN_ON_ONCE(!(expr))
-#endif
+#define ASSERT(expr) do {			\
+		if (WARN_ON_ONCE(!(expr)))	\
+			dc_breakpoint();	\
+	} while (0)
 
-#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
 #define BREAK_TO_DEBUGGER() \
 	do { \
 		DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__); \
-		kgdb_breakpoint(); \
+		dc_breakpoint(); \
 	} while (0)
-#else
-#define BREAK_TO_DEBUGGER() DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__)
-#endif
 
 #define DC_ERR(...)  do { \
 	dm_error(__VA_ARGS__); \
-- 
2.16.4

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Takashi Iwai <tiwai@suse.de>
To: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org
Subject: [PATCH 3/3] drm/amd/display: Clean up debug macros
Date: Fri, 23 Oct 2020 09:46:56 +0200	[thread overview]
Message-ID: <20201023074656.11855-4-tiwai@suse.de> (raw)
In-Reply-To: <20201023074656.11855-1-tiwai@suse.de>

This patch simplifies the ASSERT*() and BREAK_TO_DEBUGGER() macros:
- Move the dependency check of CONFIG_KGDB into Kconfig
- Unify the kgdb_breakpoint() call
- Drop the non-existing CONFIG_HAVE_KGDB

Also align the behavior of ASSERT() macro in both cases with and
without CONFIG_DEBUG_KERNEL_DC.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 drivers/gpu/drm/amd/display/Kconfig       |  1 +
 drivers/gpu/drm/amd/display/dc/os_types.h | 33 +++++++++++--------------------
 2 files changed, 13 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index f24abf428534..60dfdd432aba 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -42,6 +42,7 @@ config DRM_AMD_DC_SI
 config DEBUG_KERNEL_DC
 	bool "Enable kgdb break in DC"
 	depends on DRM_AMD_DC
+	depends on KGDB
 	help
 	  Choose this option if you want to hit kdgb_break in assert.
 
diff --git a/drivers/gpu/drm/amd/display/dc/os_types.h b/drivers/gpu/drm/amd/display/dc/os_types.h
index 32758b245754..95cb56929e79 100644
--- a/drivers/gpu/drm/amd/display/dc/os_types.h
+++ b/drivers/gpu/drm/amd/display/dc/os_types.h
@@ -94,36 +94,27 @@
  * general debug capabilities
  *
  */
-#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
-#define ASSERT_CRITICAL(expr) do {	\
-	if (WARN_ON(!(expr))) { \
-		kgdb_breakpoint(); \
-	} \
-} while (0)
+#ifdef CONFIG_DEBUG_KERNEL_DC
+#define dc_breakpoint()		kgdb_breakpoint()
 #else
-#define ASSERT_CRITICAL(expr) do {	\
-	if (WARN_ON(!(expr))) { \
-		; \
-	} \
-} while (0)
+#define dc_breakpoint()		do {} while (0)
 #endif
 
-#if defined(CONFIG_DEBUG_KERNEL_DC)
-#define ASSERT(expr) ASSERT_CRITICAL(expr)
+#define ASSERT_CRITICAL(expr) do {		\
+		if (WARN_ON(!(expr)))		\
+			dc_breakpoint();	\
+	} while (0)
 
-#else
-#define ASSERT(expr) WARN_ON_ONCE(!(expr))
-#endif
+#define ASSERT(expr) do {			\
+		if (WARN_ON_ONCE(!(expr)))	\
+			dc_breakpoint();	\
+	} while (0)
 
-#if defined(CONFIG_DEBUG_KERNEL_DC) && (defined(CONFIG_HAVE_KGDB) || defined(CONFIG_KGDB))
 #define BREAK_TO_DEBUGGER() \
 	do { \
 		DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__); \
-		kgdb_breakpoint(); \
+		dc_breakpoint(); \
 	} while (0)
-#else
-#define BREAK_TO_DEBUGGER() DRM_DEBUG_DRIVER("%s():%d\n", __func__, __LINE__)
-#endif
 
 #define DC_ERR(...)  do { \
 	dm_error(__VA_ARGS__); \
-- 
2.16.4

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

  parent reply	other threads:[~2020-10-23  7:47 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-23  7:46 [PATCH 0/3] drm/amd/display: Fix kernel panic by breakpoint Takashi Iwai
2020-10-23  7:46 ` Takashi Iwai
2020-10-23  7:46 ` Takashi Iwai
2020-10-23  7:46 ` [PATCH 1/3] drm/amd/display: Fix kernel panic by dal_gpio_open() error Takashi Iwai
2020-10-23  7:46   ` Takashi Iwai
2020-10-23  7:46   ` Takashi Iwai
2020-10-23  7:46 ` [PATCH 2/3] drm/amd/display: Don't invoke kgdb_breakpoint() unconditionally Takashi Iwai
2020-10-23  7:46   ` Takashi Iwai
2020-10-23  7:46   ` Takashi Iwai
2020-10-23  7:46 ` Takashi Iwai [this message]
2020-10-23  7:46   ` [PATCH 3/3] drm/amd/display: Clean up debug macros Takashi Iwai
2020-10-23  7:46   ` Takashi Iwai
2020-10-23 23:16 ` [PATCH 0/3] drm/amd/display: Fix kernel panic by breakpoint Luben Tuikov
2020-10-23 23:16   ` Luben Tuikov
2020-10-23 23:16   ` Luben Tuikov
2020-10-26 19:34   ` Alex Deucher
2020-10-26 19:34     ` Alex Deucher
2020-10-26 19:34     ` Alex Deucher
2020-10-26 20:22     ` Kazlauskas, Nicholas
2020-10-26 20:22       ` Kazlauskas, Nicholas
2020-10-26 20:22       ` Kazlauskas, Nicholas
2020-10-26 20:33       ` Alex Deucher
2020-10-26 20:33         ` Alex Deucher
2020-10-26 20:33         ` Alex Deucher

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