* [PATCH] drm/komeda: Adds error event print functionality
@ 2019-08-02 9:43 Lowry Li (Arm Technology China)
2019-08-02 10:05 ` Mihail Atanassov
2019-09-17 13:11 ` Daniel Vetter
0 siblings, 2 replies; 8+ messages in thread
From: Lowry Li (Arm Technology China) @ 2019-08-02 9:43 UTC (permalink / raw)
To: Liviu Dudau, james qian wang (Arm Technology China),
maarten.lankhorst, seanpaul, airlied, Brian Starkey,
Mihail Atanassov
Cc: Julien Yin (Arm Technology China),
Jonathan Chai (Arm Technology China),
Ayan Halder, dri-devel, linux-kernel, nd,
Lowry Li (Arm Technology China), Lowry Li (Arm Technology China)
From: "Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>
Adds to print the event message when error happens and the same event
will not be printed until next vsync.
Changes since v2:
1. Refine komeda_sprintf();
2. Not using STR_SZ macro for the string size in komeda_print_events().
Changes since v1:
1. Handling the event print by CONFIG_KOMEDA_ERROR_PRINT;
2. Changing the max string size to 256.
Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
---
drivers/gpu/drm/arm/display/Kconfig | 6 +
drivers/gpu/drm/arm/display/komeda/Makefile | 2 +
drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 15 +++
drivers/gpu/drm/arm/display/komeda/komeda_event.c | 140 ++++++++++++++++++++++
drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 4 +
5 files changed, 167 insertions(+)
create mode 100644 drivers/gpu/drm/arm/display/komeda/komeda_event.c
diff --git a/drivers/gpu/drm/arm/display/Kconfig b/drivers/gpu/drm/arm/display/Kconfig
index cec0639..e87ff86 100644
--- a/drivers/gpu/drm/arm/display/Kconfig
+++ b/drivers/gpu/drm/arm/display/Kconfig
@@ -12,3 +12,9 @@ config DRM_KOMEDA
Processor driver. It supports the D71 variants of the hardware.
If compiled as a module it will be called komeda.
+
+config DRM_KOMEDA_ERROR_PRINT
+ bool "Enable komeda error print"
+ depends on DRM_KOMEDA
+ help
+ Choose this option to enable error printing.
diff --git a/drivers/gpu/drm/arm/display/komeda/Makefile b/drivers/gpu/drm/arm/display/komeda/Makefile
index 5c3900c..f095a1c 100644
--- a/drivers/gpu/drm/arm/display/komeda/Makefile
+++ b/drivers/gpu/drm/arm/display/komeda/Makefile
@@ -22,4 +22,6 @@ komeda-y += \
d71/d71_dev.o \
d71/d71_component.o
+komeda-$(CONFIG_DRM_KOMEDA_ERROR_PRINT) += komeda_event.o
+
obj-$(CONFIG_DRM_KOMEDA) += komeda.o
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
index d1c86b6..e28e7e6 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
@@ -40,6 +40,17 @@
#define KOMEDA_ERR_TTNG BIT_ULL(30)
#define KOMEDA_ERR_TTF BIT_ULL(31)
+#define KOMEDA_ERR_EVENTS \
+ (KOMEDA_EVENT_URUN | KOMEDA_EVENT_IBSY | KOMEDA_EVENT_OVR |\
+ KOMEDA_ERR_TETO | KOMEDA_ERR_TEMR | KOMEDA_ERR_TITR |\
+ KOMEDA_ERR_CPE | KOMEDA_ERR_CFGE | KOMEDA_ERR_AXIE |\
+ KOMEDA_ERR_ACE0 | KOMEDA_ERR_ACE1 | KOMEDA_ERR_ACE2 |\
+ KOMEDA_ERR_ACE3 | KOMEDA_ERR_DRIFTTO | KOMEDA_ERR_FRAMETO |\
+ KOMEDA_ERR_ZME | KOMEDA_ERR_MERR | KOMEDA_ERR_TCF |\
+ KOMEDA_ERR_TTNG | KOMEDA_ERR_TTF)
+
+#define KOMEDA_WARN_EVENTS KOMEDA_ERR_CSCE
+
/* malidp device id */
enum {
MALI_D71 = 0,
@@ -207,4 +218,8 @@ struct komeda_dev {
struct komeda_dev *dev_to_mdev(struct device *dev);
+#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
+void komeda_print_events(struct komeda_events *evts);
+#endif
+
#endif /*_KOMEDA_DEV_H_*/
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
new file mode 100644
index 0000000..a36fb86
--- /dev/null
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) COPYRIGHT 2019 ARM Limited. All rights reserved.
+ * Author: James.Qian.Wang <james.qian.wang@arm.com>
+ *
+ */
+#include <drm/drm_print.h>
+
+#include "komeda_dev.h"
+
+struct komeda_str {
+ char *str;
+ u32 sz;
+ u32 len;
+};
+
+/* return 0 on success, < 0 on no space.
+ */
+static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
+{
+ va_list args;
+ int num, free_sz;
+ int err;
+
+ free_sz = str->sz - str->len - 1;
+ if (free_sz <= 0)
+ return -ENOSPC;
+
+ va_start(args, fmt);
+
+ num = vsnprintf(str->str + str->len, free_sz, fmt, args);
+
+ va_end(args);
+
+ if (num < free_sz) {
+ str->len += num;
+ err = 0;
+ } else {
+ str->len = str->sz - 1;
+ err = -ENOSPC;
+ }
+
+ return err;
+}
+
+static void evt_sprintf(struct komeda_str *str, u64 evt, const char *msg)
+{
+ if (evt)
+ komeda_sprintf(str, msg);
+}
+
+static void evt_str(struct komeda_str *str, u64 events)
+{
+ if (events == 0ULL) {
+ komeda_sprintf(str, "None");
+ return;
+ }
+
+ evt_sprintf(str, events & KOMEDA_EVENT_VSYNC, "VSYNC|");
+ evt_sprintf(str, events & KOMEDA_EVENT_FLIP, "FLIP|");
+ evt_sprintf(str, events & KOMEDA_EVENT_EOW, "EOW|");
+ evt_sprintf(str, events & KOMEDA_EVENT_MODE, "OP-MODE|");
+
+ evt_sprintf(str, events & KOMEDA_EVENT_URUN, "UNDERRUN|");
+ evt_sprintf(str, events & KOMEDA_EVENT_OVR, "OVERRUN|");
+
+ /* GLB error */
+ evt_sprintf(str, events & KOMEDA_ERR_MERR, "MERR|");
+ evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
+
+ /* DOU error */
+ evt_sprintf(str, events & KOMEDA_ERR_DRIFTTO, "DRIFTTO|");
+ evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
+ evt_sprintf(str, events & KOMEDA_ERR_TETO, "TETO|");
+ evt_sprintf(str, events & KOMEDA_ERR_CSCE, "CSCE|");
+
+ /* LPU errors or events */
+ evt_sprintf(str, events & KOMEDA_EVENT_IBSY, "IBSY|");
+ evt_sprintf(str, events & KOMEDA_ERR_AXIE, "AXIE|");
+ evt_sprintf(str, events & KOMEDA_ERR_ACE0, "ACE0|");
+ evt_sprintf(str, events & KOMEDA_ERR_ACE1, "ACE1|");
+ evt_sprintf(str, events & KOMEDA_ERR_ACE2, "ACE2|");
+ evt_sprintf(str, events & KOMEDA_ERR_ACE3, "ACE3|");
+
+ /* LPU TBU errors*/
+ evt_sprintf(str, events & KOMEDA_ERR_TCF, "TCF|");
+ evt_sprintf(str, events & KOMEDA_ERR_TTNG, "TTNG|");
+ evt_sprintf(str, events & KOMEDA_ERR_TITR, "TITR|");
+ evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
+ evt_sprintf(str, events & KOMEDA_ERR_TTF, "TTF|");
+
+ /* CU errors*/
+ evt_sprintf(str, events & KOMEDA_ERR_CPE, "COPROC|");
+ evt_sprintf(str, events & KOMEDA_ERR_ZME, "ZME|");
+ evt_sprintf(str, events & KOMEDA_ERR_CFGE, "CFGE|");
+ evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
+
+ if (str->len > 0 && (str->str[str->len - 1] == '|')) {
+ str->str[str->len - 1] = 0;
+ str->len--;
+ }
+}
+
+static bool is_new_frame(struct komeda_events *a)
+{
+ return (a->pipes[0] | a->pipes[1]) &
+ (KOMEDA_EVENT_FLIP | KOMEDA_EVENT_EOW);
+}
+
+void komeda_print_events(struct komeda_events *evts)
+{
+ u64 print_evts = KOMEDA_ERR_EVENTS;
+ static bool en_print = true;
+
+ /* reduce the same msg print, only print the first evt for one frame */
+ if (evts->global || is_new_frame(evts))
+ en_print = true;
+ if (!en_print)
+ return;
+
+ if ((evts->global | evts->pipes[0] | evts->pipes[1]) & print_evts) {
+ char msg[256];
+ struct komeda_str str;
+
+ str.str = msg;
+ str.sz = sizeof(msg);
+ str.len = 0;
+
+ komeda_sprintf(&str, "gcu: ");
+ evt_str(&str, evts->global);
+ komeda_sprintf(&str, ", pipes[0]: ");
+ evt_str(&str, evts->pipes[0]);
+ komeda_sprintf(&str, ", pipes[1]: ");
+ evt_str(&str, evts->pipes[1]);
+
+ DRM_ERROR("err detect: %s\n", msg);
+
+ en_print = false;
+ }
+}
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index 419a8b0..0fafc36 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -47,6 +47,10 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
memset(&evts, 0, sizeof(evts));
status = mdev->funcs->irq_handler(mdev, &evts);
+#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
+ komeda_print_events(&evts);
+#endif
+
/* Notify the crtc to handle the events */
for (i = 0; i < kms->n_crtcs; i++)
komeda_crtc_handle_event(&kms->crtcs[i], &evts);
--
1.9.1
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] drm/komeda: Adds error event print functionality
2019-08-02 9:43 [PATCH] drm/komeda: Adds error event print functionality Lowry Li (Arm Technology China)
@ 2019-08-02 10:05 ` Mihail Atanassov
2019-08-02 10:43 ` james qian wang (Arm Technology China)
2019-09-17 13:11 ` Daniel Vetter
1 sibling, 1 reply; 8+ messages in thread
From: Mihail Atanassov @ 2019-08-02 10:05 UTC (permalink / raw)
To: Lowry Li (Arm Technology China)
Cc: Liviu Dudau, james qian wang (Arm Technology China),
maarten.lankhorst, seanpaul, airlied, Brian Starkey,
Julien Yin (Arm Technology China),
Jonathan Chai (Arm Technology China),
Ayan Halder, dri-devel, linux-kernel, nd
On Friday, 2 August 2019 10:43:10 BST Lowry Li (Arm Technology China) wrote:
> From: "Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>
>
> Adds to print the event message when error happens and the same event
> will not be printed until next vsync.
>
> Changes since v2:
> 1. Refine komeda_sprintf();
> 2. Not using STR_SZ macro for the string size in komeda_print_events().
>
> Changes since v1:
> 1. Handling the event print by CONFIG_KOMEDA_ERROR_PRINT;
> 2. Changing the max string size to 256.
>
> Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
BR,
Mihail
> ---
> drivers/gpu/drm/arm/display/Kconfig | 6 +
> drivers/gpu/drm/arm/display/komeda/Makefile | 2 +
> drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 15 +++
> drivers/gpu/drm/arm/display/komeda/komeda_event.c | 140
> ++++++++++++++++++++++ drivers/gpu/drm/arm/display/komeda/komeda_kms.c |
> 4 +
> 5 files changed, 167 insertions(+)
> create mode 100644 drivers/gpu/drm/arm/display/komeda/komeda_event.c
>
> diff --git a/drivers/gpu/drm/arm/display/Kconfig
> b/drivers/gpu/drm/arm/display/Kconfig index cec0639..e87ff86 100644
> --- a/drivers/gpu/drm/arm/display/Kconfig
> +++ b/drivers/gpu/drm/arm/display/Kconfig
> @@ -12,3 +12,9 @@ config DRM_KOMEDA
> Processor driver. It supports the D71 variants of the hardware.
>
> If compiled as a module it will be called komeda.
> +
> +config DRM_KOMEDA_ERROR_PRINT
> + bool "Enable komeda error print"
> + depends on DRM_KOMEDA
> + help
> + Choose this option to enable error printing.
> diff --git a/drivers/gpu/drm/arm/display/komeda/Makefile
> b/drivers/gpu/drm/arm/display/komeda/Makefile index 5c3900c..f095a1c 100644
> --- a/drivers/gpu/drm/arm/display/komeda/Makefile
> +++ b/drivers/gpu/drm/arm/display/komeda/Makefile
> @@ -22,4 +22,6 @@ komeda-y += \
> d71/d71_dev.o \
> d71/d71_component.o
>
> +komeda-$(CONFIG_DRM_KOMEDA_ERROR_PRINT) += komeda_event.o
> +
> obj-$(CONFIG_DRM_KOMEDA) += komeda.o
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h index d1c86b6..e28e7e6
> 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> @@ -40,6 +40,17 @@
> #define KOMEDA_ERR_TTNG BIT_ULL(30)
> #define KOMEDA_ERR_TTF BIT_ULL(31)
>
> +#define KOMEDA_ERR_EVENTS \
> + (KOMEDA_EVENT_URUN | KOMEDA_EVENT_IBSY | KOMEDA_EVENT_OVR |
\
> + KOMEDA_ERR_TETO | KOMEDA_ERR_TEMR |
KOMEDA_ERR_TITR |\
> + KOMEDA_ERR_CPE | KOMEDA_ERR_CFGE |
KOMEDA_ERR_AXIE |\
> + KOMEDA_ERR_ACE0 | KOMEDA_ERR_ACE1 |
KOMEDA_ERR_ACE2 |\
> + KOMEDA_ERR_ACE3 | KOMEDA_ERR_DRIFTTO |
KOMEDA_ERR_FRAMETO |\
> + KOMEDA_ERR_ZME | KOMEDA_ERR_MERR |
KOMEDA_ERR_TCF |\
> + KOMEDA_ERR_TTNG | KOMEDA_ERR_TTF)
> +
> +#define KOMEDA_WARN_EVENTS KOMEDA_ERR_CSCE
> +
> /* malidp device id */
> enum {
> MALI_D71 = 0,
> @@ -207,4 +218,8 @@ struct komeda_dev {
>
> struct komeda_dev *dev_to_mdev(struct device *dev);
>
> +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> +void komeda_print_events(struct komeda_events *evts);
> +#endif
> +
> #endif /*_KOMEDA_DEV_H_*/
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> b/drivers/gpu/drm/arm/display/komeda/komeda_event.c new file mode 100644
> index 0000000..a36fb86
> --- /dev/null
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> @@ -0,0 +1,140 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * (C) COPYRIGHT 2019 ARM Limited. All rights reserved.
> + * Author: James.Qian.Wang <james.qian.wang@arm.com>
> + *
> + */
> +#include <drm/drm_print.h>
> +
> +#include "komeda_dev.h"
> +
> +struct komeda_str {
> + char *str;
> + u32 sz;
> + u32 len;
> +};
> +
> +/* return 0 on success, < 0 on no space.
> + */
> +static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
> +{
> + va_list args;
> + int num, free_sz;
> + int err;
> +
> + free_sz = str->sz - str->len - 1;
> + if (free_sz <= 0)
> + return -ENOSPC;
> +
> + va_start(args, fmt);
> +
> + num = vsnprintf(str->str + str->len, free_sz, fmt, args);
> +
> + va_end(args);
> +
> + if (num < free_sz) {
> + str->len += num;
> + err = 0;
> + } else {
> + str->len = str->sz - 1;
> + err = -ENOSPC;
> + }
> +
> + return err;
> +}
> +
> +static void evt_sprintf(struct komeda_str *str, u64 evt, const char *msg)
> +{
> + if (evt)
> + komeda_sprintf(str, msg);
> +}
> +
> +static void evt_str(struct komeda_str *str, u64 events)
> +{
> + if (events == 0ULL) {
> + komeda_sprintf(str, "None");
> + return;
> + }
> +
> + evt_sprintf(str, events & KOMEDA_EVENT_VSYNC, "VSYNC|");
> + evt_sprintf(str, events & KOMEDA_EVENT_FLIP, "FLIP|");
> + evt_sprintf(str, events & KOMEDA_EVENT_EOW, "EOW|");
> + evt_sprintf(str, events & KOMEDA_EVENT_MODE, "OP-MODE|");
> +
> + evt_sprintf(str, events & KOMEDA_EVENT_URUN, "UNDERRUN|");
> + evt_sprintf(str, events & KOMEDA_EVENT_OVR, "OVERRUN|");
> +
> + /* GLB error */
> + evt_sprintf(str, events & KOMEDA_ERR_MERR, "MERR|");
> + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> +
> + /* DOU error */
> + evt_sprintf(str, events & KOMEDA_ERR_DRIFTTO, "DRIFTTO|");
> + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> + evt_sprintf(str, events & KOMEDA_ERR_TETO, "TETO|");
> + evt_sprintf(str, events & KOMEDA_ERR_CSCE, "CSCE|");
> +
> + /* LPU errors or events */
> + evt_sprintf(str, events & KOMEDA_EVENT_IBSY, "IBSY|");
> + evt_sprintf(str, events & KOMEDA_ERR_AXIE, "AXIE|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE0, "ACE0|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE1, "ACE1|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE2, "ACE2|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE3, "ACE3|");
> +
> + /* LPU TBU errors*/
> + evt_sprintf(str, events & KOMEDA_ERR_TCF, "TCF|");
> + evt_sprintf(str, events & KOMEDA_ERR_TTNG, "TTNG|");
> + evt_sprintf(str, events & KOMEDA_ERR_TITR, "TITR|");
> + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> + evt_sprintf(str, events & KOMEDA_ERR_TTF, "TTF|");
> +
> + /* CU errors*/
> + evt_sprintf(str, events & KOMEDA_ERR_CPE, "COPROC|");
> + evt_sprintf(str, events & KOMEDA_ERR_ZME, "ZME|");
> + evt_sprintf(str, events & KOMEDA_ERR_CFGE, "CFGE|");
> + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> +
> + if (str->len > 0 && (str->str[str->len - 1] == '|')) {
> + str->str[str->len - 1] = 0;
> + str->len--;
> + }
> +}
> +
> +static bool is_new_frame(struct komeda_events *a)
> +{
> + return (a->pipes[0] | a->pipes[1]) &
> + (KOMEDA_EVENT_FLIP | KOMEDA_EVENT_EOW);
> +}
> +
> +void komeda_print_events(struct komeda_events *evts)
> +{
> + u64 print_evts = KOMEDA_ERR_EVENTS;
> + static bool en_print = true;
> +
> + /* reduce the same msg print, only print the first evt for one
frame */
> + if (evts->global || is_new_frame(evts))
> + en_print = true;
> + if (!en_print)
> + return;
> +
> + if ((evts->global | evts->pipes[0] | evts->pipes[1]) & print_evts)
{
> + char msg[256];
> + struct komeda_str str;
> +
> + str.str = msg;
> + str.sz = sizeof(msg);
> + str.len = 0;
> +
> + komeda_sprintf(&str, "gcu: ");
> + evt_str(&str, evts->global);
> + komeda_sprintf(&str, ", pipes[0]: ");
> + evt_str(&str, evts->pipes[0]);
> + komeda_sprintf(&str, ", pipes[1]: ");
> + evt_str(&str, evts->pipes[1]);
> +
> + DRM_ERROR("err detect: %s\n", msg);
> +
> + en_print = false;
> + }
> +}
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c index 419a8b0..0fafc36
> 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> @@ -47,6 +47,10 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void
> *data) memset(&evts, 0, sizeof(evts));
> status = mdev->funcs->irq_handler(mdev, &evts);
>
> +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> + komeda_print_events(&evts);
> +#endif
> +
> /* Notify the crtc to handle the events */
> for (i = 0; i < kms->n_crtcs; i++)
> komeda_crtc_handle_event(&kms->crtcs[i], &evts);
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] drm/komeda: Adds error event print functionality
2019-08-02 10:05 ` Mihail Atanassov
@ 2019-08-02 10:43 ` james qian wang (Arm Technology China)
0 siblings, 0 replies; 8+ messages in thread
From: james qian wang (Arm Technology China) @ 2019-08-02 10:43 UTC (permalink / raw)
To: Mihail Atanassov
Cc: Lowry Li (Arm Technology China),
Liviu Dudau, maarten.lankhorst, seanpaul, airlied, Brian Starkey,
Julien Yin (Arm Technology China),
Jonathan Chai (Arm Technology China),
Ayan Halder, dri-devel, linux-kernel, nd
On Fri, Aug 02, 2019 at 06:05:08PM +0800, Mihail Atanassov wrote:
> On Friday, 2 August 2019 10:43:10 BST Lowry Li (Arm Technology China) wrote:
> > From: "Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>
> >
> > Adds to print the event message when error happens and the same event
> > will not be printed until next vsync.
> >
> > Changes since v2:
> > 1. Refine komeda_sprintf();
> > 2. Not using STR_SZ macro for the string size in komeda_print_events().
> >
> > Changes since v1:
> > 1. Handling the event print by CONFIG_KOMEDA_ERROR_PRINT;
> > 2. Changing the max string size to 256.
> >
> > Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
>
> Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
>
> BR,
> Mihail
looks good to me.
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
>
> > ---
> > drivers/gpu/drm/arm/display/Kconfig | 6 +
> > drivers/gpu/drm/arm/display/komeda/Makefile | 2 +
> > drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 15 +++
> > drivers/gpu/drm/arm/display/komeda/komeda_event.c | 140
> > ++++++++++++++++++++++ drivers/gpu/drm/arm/display/komeda/komeda_kms.c |
> > 4 +
> > 5 files changed, 167 insertions(+)
> > create mode 100644 drivers/gpu/drm/arm/display/komeda/komeda_event.c
> >
> > diff --git a/drivers/gpu/drm/arm/display/Kconfig
> > b/drivers/gpu/drm/arm/display/Kconfig index cec0639..e87ff86 100644
> > --- a/drivers/gpu/drm/arm/display/Kconfig
> > +++ b/drivers/gpu/drm/arm/display/Kconfig
> > @@ -12,3 +12,9 @@ config DRM_KOMEDA
> > Processor driver. It supports the D71 variants of the hardware.
> >
> > If compiled as a module it will be called komeda.
> > +
> > +config DRM_KOMEDA_ERROR_PRINT
> > + bool "Enable komeda error print"
> > + depends on DRM_KOMEDA
> > + help
> > + Choose this option to enable error printing.
> > diff --git a/drivers/gpu/drm/arm/display/komeda/Makefile
> > b/drivers/gpu/drm/arm/display/komeda/Makefile index 5c3900c..f095a1c 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/Makefile
> > +++ b/drivers/gpu/drm/arm/display/komeda/Makefile
> > @@ -22,4 +22,6 @@ komeda-y += \
> > d71/d71_dev.o \
> > d71/d71_component.o
> >
> > +komeda-$(CONFIG_DRM_KOMEDA_ERROR_PRINT) += komeda_event.o
> > +
> > obj-$(CONFIG_DRM_KOMEDA) += komeda.o
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h index d1c86b6..e28e7e6
> > 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > @@ -40,6 +40,17 @@
> > #define KOMEDA_ERR_TTNG BIT_ULL(30)
> > #define KOMEDA_ERR_TTF BIT_ULL(31)
> >
> > +#define KOMEDA_ERR_EVENTS \
> > + (KOMEDA_EVENT_URUN | KOMEDA_EVENT_IBSY | KOMEDA_EVENT_OVR |
> \
> > + KOMEDA_ERR_TETO | KOMEDA_ERR_TEMR |
> KOMEDA_ERR_TITR |\
> > + KOMEDA_ERR_CPE | KOMEDA_ERR_CFGE |
> KOMEDA_ERR_AXIE |\
> > + KOMEDA_ERR_ACE0 | KOMEDA_ERR_ACE1 |
> KOMEDA_ERR_ACE2 |\
> > + KOMEDA_ERR_ACE3 | KOMEDA_ERR_DRIFTTO |
> KOMEDA_ERR_FRAMETO |\
> > + KOMEDA_ERR_ZME | KOMEDA_ERR_MERR |
> KOMEDA_ERR_TCF |\
> > + KOMEDA_ERR_TTNG | KOMEDA_ERR_TTF)
> > +
> > +#define KOMEDA_WARN_EVENTS KOMEDA_ERR_CSCE
> > +
> > /* malidp device id */
> > enum {
> > MALI_D71 = 0,
> > @@ -207,4 +218,8 @@ struct komeda_dev {
> >
> > struct komeda_dev *dev_to_mdev(struct device *dev);
> >
> > +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> > +void komeda_print_events(struct komeda_events *evts);
> > +#endif
> > +
> > #endif /*_KOMEDA_DEV_H_*/
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > b/drivers/gpu/drm/arm/display/komeda/komeda_event.c new file mode 100644
> > index 0000000..a36fb86
> > --- /dev/null
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > @@ -0,0 +1,140 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * (C) COPYRIGHT 2019 ARM Limited. All rights reserved.
> > + * Author: James.Qian.Wang <james.qian.wang@arm.com>
> > + *
> > + */
> > +#include <drm/drm_print.h>
> > +
> > +#include "komeda_dev.h"
> > +
> > +struct komeda_str {
> > + char *str;
> > + u32 sz;
> > + u32 len;
> > +};
> > +
> > +/* return 0 on success, < 0 on no space.
> > + */
> > +static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
> > +{
> > + va_list args;
> > + int num, free_sz;
> > + int err;
> > +
> > + free_sz = str->sz - str->len - 1;
> > + if (free_sz <= 0)
> > + return -ENOSPC;
> > +
> > + va_start(args, fmt);
> > +
> > + num = vsnprintf(str->str + str->len, free_sz, fmt, args);
> > +
> > + va_end(args);
> > +
> > + if (num < free_sz) {
> > + str->len += num;
> > + err = 0;
> > + } else {
> > + str->len = str->sz - 1;
> > + err = -ENOSPC;
> > + }
> > +
> > + return err;
> > +}
> > +
> > +static void evt_sprintf(struct komeda_str *str, u64 evt, const char *msg)
> > +{
> > + if (evt)
> > + komeda_sprintf(str, msg);
> > +}
> > +
> > +static void evt_str(struct komeda_str *str, u64 events)
> > +{
> > + if (events == 0ULL) {
> > + komeda_sprintf(str, "None");
> > + return;
> > + }
> > +
> > + evt_sprintf(str, events & KOMEDA_EVENT_VSYNC, "VSYNC|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_FLIP, "FLIP|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_EOW, "EOW|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_MODE, "OP-MODE|");
> > +
> > + evt_sprintf(str, events & KOMEDA_EVENT_URUN, "UNDERRUN|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_OVR, "OVERRUN|");
> > +
> > + /* GLB error */
> > + evt_sprintf(str, events & KOMEDA_ERR_MERR, "MERR|");
> > + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> > +
> > + /* DOU error */
> > + evt_sprintf(str, events & KOMEDA_ERR_DRIFTTO, "DRIFTTO|");
> > + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TETO, "TETO|");
> > + evt_sprintf(str, events & KOMEDA_ERR_CSCE, "CSCE|");
> > +
> > + /* LPU errors or events */
> > + evt_sprintf(str, events & KOMEDA_EVENT_IBSY, "IBSY|");
> > + evt_sprintf(str, events & KOMEDA_ERR_AXIE, "AXIE|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE0, "ACE0|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE1, "ACE1|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE2, "ACE2|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE3, "ACE3|");
> > +
> > + /* LPU TBU errors*/
> > + evt_sprintf(str, events & KOMEDA_ERR_TCF, "TCF|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TTNG, "TTNG|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TITR, "TITR|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TTF, "TTF|");
> > +
> > + /* CU errors*/
> > + evt_sprintf(str, events & KOMEDA_ERR_CPE, "COPROC|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ZME, "ZME|");
> > + evt_sprintf(str, events & KOMEDA_ERR_CFGE, "CFGE|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> > +
> > + if (str->len > 0 && (str->str[str->len - 1] == '|')) {
> > + str->str[str->len - 1] = 0;
> > + str->len--;
> > + }
> > +}
> > +
> > +static bool is_new_frame(struct komeda_events *a)
> > +{
> > + return (a->pipes[0] | a->pipes[1]) &
> > + (KOMEDA_EVENT_FLIP | KOMEDA_EVENT_EOW);
> > +}
> > +
> > +void komeda_print_events(struct komeda_events *evts)
> > +{
> > + u64 print_evts = KOMEDA_ERR_EVENTS;
> > + static bool en_print = true;
> > +
> > + /* reduce the same msg print, only print the first evt for one
> frame */
> > + if (evts->global || is_new_frame(evts))
> > + en_print = true;
> > + if (!en_print)
> > + return;
> > +
> > + if ((evts->global | evts->pipes[0] | evts->pipes[1]) & print_evts)
> {
> > + char msg[256];
> > + struct komeda_str str;
> > +
> > + str.str = msg;
> > + str.sz = sizeof(msg);
> > + str.len = 0;
> > +
> > + komeda_sprintf(&str, "gcu: ");
> > + evt_str(&str, evts->global);
> > + komeda_sprintf(&str, ", pipes[0]: ");
> > + evt_str(&str, evts->pipes[0]);
> > + komeda_sprintf(&str, ", pipes[1]: ");
> > + evt_str(&str, evts->pipes[1]);
> > +
> > + DRM_ERROR("err detect: %s\n", msg);
> > +
> > + en_print = false;
> > + }
> > +}
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c index 419a8b0..0fafc36
> > 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > @@ -47,6 +47,10 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void
> > *data) memset(&evts, 0, sizeof(evts));
> > status = mdev->funcs->irq_handler(mdev, &evts);
> >
> > +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> > + komeda_print_events(&evts);
> > +#endif
> > +
> > /* Notify the crtc to handle the events */
> > for (i = 0; i < kms->n_crtcs; i++)
> > komeda_crtc_handle_event(&kms->crtcs[i], &evts);
>
>
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] drm/komeda: Adds error event print functionality
2019-08-02 9:43 [PATCH] drm/komeda: Adds error event print functionality Lowry Li (Arm Technology China)
2019-08-02 10:05 ` Mihail Atanassov
@ 2019-09-17 13:11 ` Daniel Vetter
2019-09-17 15:05 ` [PATCH] drm/komeda: Remove in-code use of ifdef Mihail Atanassov
2019-09-18 1:29 ` [PATCH] drm/komeda: Adds error event print functionality james qian wang (Arm Technology China)
1 sibling, 2 replies; 8+ messages in thread
From: Daniel Vetter @ 2019-09-17 13:11 UTC (permalink / raw)
To: Lowry Li (Arm Technology China)
Cc: Liviu Dudau, james qian wang (Arm Technology China),
maarten.lankhorst, seanpaul, airlied, Brian Starkey,
Mihail Atanassov, Ayan Halder,
Jonathan Chai (Arm Technology China),
linux-kernel, dri-devel, Julien Yin (Arm Technology China),
nd
On Fri, Aug 2, 2019 at 11:43 AM Lowry Li (Arm Technology China)
<Lowry.Li@arm.com> wrote:
>
> From: "Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>
>
> Adds to print the event message when error happens and the same event
> will not be printed until next vsync.
>
> Changes since v2:
> 1. Refine komeda_sprintf();
> 2. Not using STR_SZ macro for the string size in komeda_print_events().
>
> Changes since v1:
> 1. Handling the event print by CONFIG_KOMEDA_ERROR_PRINT;
> 2. Changing the max string size to 256.
>
> Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
> ---
> drivers/gpu/drm/arm/display/Kconfig | 6 +
> drivers/gpu/drm/arm/display/komeda/Makefile | 2 +
> drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 15 +++
> drivers/gpu/drm/arm/display/komeda/komeda_event.c | 140 ++++++++++++++++++++++
> drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 4 +
> 5 files changed, 167 insertions(+)
> create mode 100644 drivers/gpu/drm/arm/display/komeda/komeda_event.c
>
> diff --git a/drivers/gpu/drm/arm/display/Kconfig b/drivers/gpu/drm/arm/display/Kconfig
> index cec0639..e87ff86 100644
> --- a/drivers/gpu/drm/arm/display/Kconfig
> +++ b/drivers/gpu/drm/arm/display/Kconfig
> @@ -12,3 +12,9 @@ config DRM_KOMEDA
> Processor driver. It supports the D71 variants of the hardware.
>
> If compiled as a module it will be called komeda.
> +
> +config DRM_KOMEDA_ERROR_PRINT
> + bool "Enable komeda error print"
> + depends on DRM_KOMEDA
> + help
> + Choose this option to enable error printing.
> diff --git a/drivers/gpu/drm/arm/display/komeda/Makefile b/drivers/gpu/drm/arm/display/komeda/Makefile
> index 5c3900c..f095a1c 100644
> --- a/drivers/gpu/drm/arm/display/komeda/Makefile
> +++ b/drivers/gpu/drm/arm/display/komeda/Makefile
> @@ -22,4 +22,6 @@ komeda-y += \
> d71/d71_dev.o \
> d71/d71_component.o
>
> +komeda-$(CONFIG_DRM_KOMEDA_ERROR_PRINT) += komeda_event.o
> +
> obj-$(CONFIG_DRM_KOMEDA) += komeda.o
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> index d1c86b6..e28e7e6 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> @@ -40,6 +40,17 @@
> #define KOMEDA_ERR_TTNG BIT_ULL(30)
> #define KOMEDA_ERR_TTF BIT_ULL(31)
>
> +#define KOMEDA_ERR_EVENTS \
> + (KOMEDA_EVENT_URUN | KOMEDA_EVENT_IBSY | KOMEDA_EVENT_OVR |\
> + KOMEDA_ERR_TETO | KOMEDA_ERR_TEMR | KOMEDA_ERR_TITR |\
> + KOMEDA_ERR_CPE | KOMEDA_ERR_CFGE | KOMEDA_ERR_AXIE |\
> + KOMEDA_ERR_ACE0 | KOMEDA_ERR_ACE1 | KOMEDA_ERR_ACE2 |\
> + KOMEDA_ERR_ACE3 | KOMEDA_ERR_DRIFTTO | KOMEDA_ERR_FRAMETO |\
> + KOMEDA_ERR_ZME | KOMEDA_ERR_MERR | KOMEDA_ERR_TCF |\
> + KOMEDA_ERR_TTNG | KOMEDA_ERR_TTF)
> +
> +#define KOMEDA_WARN_EVENTS KOMEDA_ERR_CSCE
> +
> /* malidp device id */
> enum {
> MALI_D71 = 0,
> @@ -207,4 +218,8 @@ struct komeda_dev {
>
> struct komeda_dev *dev_to_mdev(struct device *dev);
>
> +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> +void komeda_print_events(struct komeda_events *evts);
> +#endif
> +
> #endif /*_KOMEDA_DEV_H_*/
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> new file mode 100644
> index 0000000..a36fb86
> --- /dev/null
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> @@ -0,0 +1,140 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * (C) COPYRIGHT 2019 ARM Limited. All rights reserved.
> + * Author: James.Qian.Wang <james.qian.wang@arm.com>
> + *
> + */
> +#include <drm/drm_print.h>
> +
> +#include "komeda_dev.h"
> +
> +struct komeda_str {
> + char *str;
> + u32 sz;
> + u32 len;
> +};
> +
> +/* return 0 on success, < 0 on no space.
> + */
> +static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
> +{
> + va_list args;
> + int num, free_sz;
> + int err;
> +
> + free_sz = str->sz - str->len - 1;
> + if (free_sz <= 0)
> + return -ENOSPC;
> +
> + va_start(args, fmt);
> +
> + num = vsnprintf(str->str + str->len, free_sz, fmt, args);
> +
> + va_end(args);
> +
> + if (num < free_sz) {
> + str->len += num;
> + err = 0;
> + } else {
> + str->len = str->sz - 1;
> + err = -ENOSPC;
> + }
> +
> + return err;
> +}
> +
> +static void evt_sprintf(struct komeda_str *str, u64 evt, const char *msg)
> +{
> + if (evt)
> + komeda_sprintf(str, msg);
> +}
> +
> +static void evt_str(struct komeda_str *str, u64 events)
> +{
> + if (events == 0ULL) {
> + komeda_sprintf(str, "None");
> + return;
> + }
> +
> + evt_sprintf(str, events & KOMEDA_EVENT_VSYNC, "VSYNC|");
> + evt_sprintf(str, events & KOMEDA_EVENT_FLIP, "FLIP|");
> + evt_sprintf(str, events & KOMEDA_EVENT_EOW, "EOW|");
> + evt_sprintf(str, events & KOMEDA_EVENT_MODE, "OP-MODE|");
> +
> + evt_sprintf(str, events & KOMEDA_EVENT_URUN, "UNDERRUN|");
> + evt_sprintf(str, events & KOMEDA_EVENT_OVR, "OVERRUN|");
> +
> + /* GLB error */
> + evt_sprintf(str, events & KOMEDA_ERR_MERR, "MERR|");
> + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> +
> + /* DOU error */
> + evt_sprintf(str, events & KOMEDA_ERR_DRIFTTO, "DRIFTTO|");
> + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> + evt_sprintf(str, events & KOMEDA_ERR_TETO, "TETO|");
> + evt_sprintf(str, events & KOMEDA_ERR_CSCE, "CSCE|");
> +
> + /* LPU errors or events */
> + evt_sprintf(str, events & KOMEDA_EVENT_IBSY, "IBSY|");
> + evt_sprintf(str, events & KOMEDA_ERR_AXIE, "AXIE|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE0, "ACE0|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE1, "ACE1|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE2, "ACE2|");
> + evt_sprintf(str, events & KOMEDA_ERR_ACE3, "ACE3|");
> +
> + /* LPU TBU errors*/
> + evt_sprintf(str, events & KOMEDA_ERR_TCF, "TCF|");
> + evt_sprintf(str, events & KOMEDA_ERR_TTNG, "TTNG|");
> + evt_sprintf(str, events & KOMEDA_ERR_TITR, "TITR|");
> + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> + evt_sprintf(str, events & KOMEDA_ERR_TTF, "TTF|");
> +
> + /* CU errors*/
> + evt_sprintf(str, events & KOMEDA_ERR_CPE, "COPROC|");
> + evt_sprintf(str, events & KOMEDA_ERR_ZME, "ZME|");
> + evt_sprintf(str, events & KOMEDA_ERR_CFGE, "CFGE|");
> + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> +
> + if (str->len > 0 && (str->str[str->len - 1] == '|')) {
> + str->str[str->len - 1] = 0;
> + str->len--;
> + }
> +}
> +
> +static bool is_new_frame(struct komeda_events *a)
> +{
> + return (a->pipes[0] | a->pipes[1]) &
> + (KOMEDA_EVENT_FLIP | KOMEDA_EVENT_EOW);
> +}
> +
> +void komeda_print_events(struct komeda_events *evts)
> +{
> + u64 print_evts = KOMEDA_ERR_EVENTS;
> + static bool en_print = true;
> +
> + /* reduce the same msg print, only print the first evt for one frame */
> + if (evts->global || is_new_frame(evts))
> + en_print = true;
> + if (!en_print)
> + return;
> +
> + if ((evts->global | evts->pipes[0] | evts->pipes[1]) & print_evts) {
> + char msg[256];
> + struct komeda_str str;
> +
> + str.str = msg;
> + str.sz = sizeof(msg);
> + str.len = 0;
> +
> + komeda_sprintf(&str, "gcu: ");
> + evt_str(&str, evts->global);
> + komeda_sprintf(&str, ", pipes[0]: ");
> + evt_str(&str, evts->pipes[0]);
> + komeda_sprintf(&str, ", pipes[1]: ");
> + evt_str(&str, evts->pipes[1]);
> +
> + DRM_ERROR("err detect: %s\n", msg);
> +
> + en_print = false;
> + }
> +}
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> index 419a8b0..0fafc36 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> @@ -47,6 +47,10 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
> memset(&evts, 0, sizeof(evts));
> status = mdev->funcs->irq_handler(mdev, &evts);
>
> +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> + komeda_print_events(&evts);
> +#endif
#ifdef in code is discouraged, the usual way we handle these cases is
by having a dummy static inline function which does nothing in the
headers for the case a config option isn't enabled.
-Daniel
> +
> /* Notify the crtc to handle the events */
> for (i = 0; i < kms->n_crtcs; i++)
> komeda_crtc_handle_event(&kms->crtcs[i], &evts);
> --
> 1.9.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH] drm/komeda: Remove in-code use of ifdef
2019-09-17 13:11 ` Daniel Vetter
@ 2019-09-17 15:05 ` Mihail Atanassov
2019-09-18 7:59 ` Daniel Vetter
2019-09-18 1:29 ` [PATCH] drm/komeda: Adds error event print functionality james qian wang (Arm Technology China)
1 sibling, 1 reply; 8+ messages in thread
From: Mihail Atanassov @ 2019-09-17 15:05 UTC (permalink / raw)
To: Daniel Vetter
Cc: Mihail Atanassov, Liviu Dudau, maarten.lankhorst, seanpaul,
airlied, Brian Starkey, Ayan Halder,
Jonathan Chai (Arm Technology China),
Julien Yin (Arm Technology China),
nd, Lowry Li (Arm Technology China),
james qian wang (Arm Technology China),
Liviu Dudau, Brian Starkey, dri-devel, linux-kernel
Provide a dummy static inline function in the header instead.
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Lowry Li (Arm Technology China) <Lowry.Li@arm.com>
Cc: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Fixes: 4d74b25ee395 ("drm/komeda: Adds error event print functionality")
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
---
drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 2 ++
drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
index e28e7e6563ab..8acf8c0601cc 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
@@ -220,6 +220,8 @@ struct komeda_dev *dev_to_mdev(struct device *dev);
#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
void komeda_print_events(struct komeda_events *evts);
+#else
+static inline void komeda_print_events(struct komeda_events *evts) {}
#endif
#endif /*_KOMEDA_DEV_H_*/
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index 18d7e2520225..dc85c08e614d 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -47,9 +47,7 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
memset(&evts, 0, sizeof(evts));
status = mdev->funcs->irq_handler(mdev, &evts);
-#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
komeda_print_events(&evts);
-#endif
/* Notify the crtc to handle the events */
for (i = 0; i < kms->n_crtcs; i++)
--
2.23.0
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH] drm/komeda: Adds error event print functionality
2019-09-17 13:11 ` Daniel Vetter
2019-09-17 15:05 ` [PATCH] drm/komeda: Remove in-code use of ifdef Mihail Atanassov
@ 2019-09-18 1:29 ` james qian wang (Arm Technology China)
1 sibling, 0 replies; 8+ messages in thread
From: james qian wang (Arm Technology China) @ 2019-09-18 1:29 UTC (permalink / raw)
To: Daniel Vetter
Cc: Lowry Li (Arm Technology China),
Liviu Dudau, maarten.lankhorst, seanpaul, airlied, Brian Starkey,
Mihail Atanassov, Ayan Halder,
Jonathan Chai (Arm Technology China),
linux-kernel, dri-devel, Julien Yin (Arm Technology China),
nd
On Tue, Sep 17, 2019 at 03:11:27PM +0200, Daniel Vetter wrote:
> On Fri, Aug 2, 2019 at 11:43 AM Lowry Li (Arm Technology China)
> <Lowry.Li@arm.com> wrote:
> >
> > From: "Lowry Li (Arm Technology China)" <Lowry.Li@arm.com>
> >
> > Adds to print the event message when error happens and the same event
> > will not be printed until next vsync.
> >
> > Changes since v2:
> > 1. Refine komeda_sprintf();
> > 2. Not using STR_SZ macro for the string size in komeda_print_events().
> >
> > Changes since v1:
> > 1. Handling the event print by CONFIG_KOMEDA_ERROR_PRINT;
> > 2. Changing the max string size to 256.
> >
> > Signed-off-by: Lowry Li (Arm Technology China) <lowry.li@arm.com>
> > ---
> > drivers/gpu/drm/arm/display/Kconfig | 6 +
> > drivers/gpu/drm/arm/display/komeda/Makefile | 2 +
> > drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 15 +++
> > drivers/gpu/drm/arm/display/komeda/komeda_event.c | 140 ++++++++++++++++++++++
> > drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 4 +
> > 5 files changed, 167 insertions(+)
> > create mode 100644 drivers/gpu/drm/arm/display/komeda/komeda_event.c
> >
> > diff --git a/drivers/gpu/drm/arm/display/Kconfig b/drivers/gpu/drm/arm/display/Kconfig
> > index cec0639..e87ff86 100644
> > --- a/drivers/gpu/drm/arm/display/Kconfig
> > +++ b/drivers/gpu/drm/arm/display/Kconfig
> > @@ -12,3 +12,9 @@ config DRM_KOMEDA
> > Processor driver. It supports the D71 variants of the hardware.
> >
> > If compiled as a module it will be called komeda.
> > +
> > +config DRM_KOMEDA_ERROR_PRINT
> > + bool "Enable komeda error print"
> > + depends on DRM_KOMEDA
> > + help
> > + Choose this option to enable error printing.
> > diff --git a/drivers/gpu/drm/arm/display/komeda/Makefile b/drivers/gpu/drm/arm/display/komeda/Makefile
> > index 5c3900c..f095a1c 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/Makefile
> > +++ b/drivers/gpu/drm/arm/display/komeda/Makefile
> > @@ -22,4 +22,6 @@ komeda-y += \
> > d71/d71_dev.o \
> > d71/d71_component.o
> >
> > +komeda-$(CONFIG_DRM_KOMEDA_ERROR_PRINT) += komeda_event.o
> > +
> > obj-$(CONFIG_DRM_KOMEDA) += komeda.o
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > index d1c86b6..e28e7e6 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > @@ -40,6 +40,17 @@
> > #define KOMEDA_ERR_TTNG BIT_ULL(30)
> > #define KOMEDA_ERR_TTF BIT_ULL(31)
> >
> > +#define KOMEDA_ERR_EVENTS \
> > + (KOMEDA_EVENT_URUN | KOMEDA_EVENT_IBSY | KOMEDA_EVENT_OVR |\
> > + KOMEDA_ERR_TETO | KOMEDA_ERR_TEMR | KOMEDA_ERR_TITR |\
> > + KOMEDA_ERR_CPE | KOMEDA_ERR_CFGE | KOMEDA_ERR_AXIE |\
> > + KOMEDA_ERR_ACE0 | KOMEDA_ERR_ACE1 | KOMEDA_ERR_ACE2 |\
> > + KOMEDA_ERR_ACE3 | KOMEDA_ERR_DRIFTTO | KOMEDA_ERR_FRAMETO |\
> > + KOMEDA_ERR_ZME | KOMEDA_ERR_MERR | KOMEDA_ERR_TCF |\
> > + KOMEDA_ERR_TTNG | KOMEDA_ERR_TTF)
> > +
> > +#define KOMEDA_WARN_EVENTS KOMEDA_ERR_CSCE
> > +
> > /* malidp device id */
> > enum {
> > MALI_D71 = 0,
> > @@ -207,4 +218,8 @@ struct komeda_dev {
> >
> > struct komeda_dev *dev_to_mdev(struct device *dev);
> >
> > +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> > +void komeda_print_events(struct komeda_events *evts);
> > +#endif
> > +
> > #endif /*_KOMEDA_DEV_H_*/
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > new file mode 100644
> > index 0000000..a36fb86
> > --- /dev/null
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > @@ -0,0 +1,140 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * (C) COPYRIGHT 2019 ARM Limited. All rights reserved.
> > + * Author: James.Qian.Wang <james.qian.wang@arm.com>
> > + *
> > + */
> > +#include <drm/drm_print.h>
> > +
> > +#include "komeda_dev.h"
> > +
> > +struct komeda_str {
> > + char *str;
> > + u32 sz;
> > + u32 len;
> > +};
> > +
> > +/* return 0 on success, < 0 on no space.
> > + */
> > +static int komeda_sprintf(struct komeda_str *str, const char *fmt, ...)
> > +{
> > + va_list args;
> > + int num, free_sz;
> > + int err;
> > +
> > + free_sz = str->sz - str->len - 1;
> > + if (free_sz <= 0)
> > + return -ENOSPC;
> > +
> > + va_start(args, fmt);
> > +
> > + num = vsnprintf(str->str + str->len, free_sz, fmt, args);
> > +
> > + va_end(args);
> > +
> > + if (num < free_sz) {
> > + str->len += num;
> > + err = 0;
> > + } else {
> > + str->len = str->sz - 1;
> > + err = -ENOSPC;
> > + }
> > +
> > + return err;
> > +}
> > +
> > +static void evt_sprintf(struct komeda_str *str, u64 evt, const char *msg)
> > +{
> > + if (evt)
> > + komeda_sprintf(str, msg);
> > +}
> > +
> > +static void evt_str(struct komeda_str *str, u64 events)
> > +{
> > + if (events == 0ULL) {
> > + komeda_sprintf(str, "None");
> > + return;
> > + }
> > +
> > + evt_sprintf(str, events & KOMEDA_EVENT_VSYNC, "VSYNC|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_FLIP, "FLIP|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_EOW, "EOW|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_MODE, "OP-MODE|");
> > +
> > + evt_sprintf(str, events & KOMEDA_EVENT_URUN, "UNDERRUN|");
> > + evt_sprintf(str, events & KOMEDA_EVENT_OVR, "OVERRUN|");
> > +
> > + /* GLB error */
> > + evt_sprintf(str, events & KOMEDA_ERR_MERR, "MERR|");
> > + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> > +
> > + /* DOU error */
> > + evt_sprintf(str, events & KOMEDA_ERR_DRIFTTO, "DRIFTTO|");
> > + evt_sprintf(str, events & KOMEDA_ERR_FRAMETO, "FRAMETO|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TETO, "TETO|");
> > + evt_sprintf(str, events & KOMEDA_ERR_CSCE, "CSCE|");
> > +
> > + /* LPU errors or events */
> > + evt_sprintf(str, events & KOMEDA_EVENT_IBSY, "IBSY|");
> > + evt_sprintf(str, events & KOMEDA_ERR_AXIE, "AXIE|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE0, "ACE0|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE1, "ACE1|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE2, "ACE2|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ACE3, "ACE3|");
> > +
> > + /* LPU TBU errors*/
> > + evt_sprintf(str, events & KOMEDA_ERR_TCF, "TCF|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TTNG, "TTNG|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TITR, "TITR|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TTF, "TTF|");
> > +
> > + /* CU errors*/
> > + evt_sprintf(str, events & KOMEDA_ERR_CPE, "COPROC|");
> > + evt_sprintf(str, events & KOMEDA_ERR_ZME, "ZME|");
> > + evt_sprintf(str, events & KOMEDA_ERR_CFGE, "CFGE|");
> > + evt_sprintf(str, events & KOMEDA_ERR_TEMR, "TEMR|");
> > +
> > + if (str->len > 0 && (str->str[str->len - 1] == '|')) {
> > + str->str[str->len - 1] = 0;
> > + str->len--;
> > + }
> > +}
> > +
> > +static bool is_new_frame(struct komeda_events *a)
> > +{
> > + return (a->pipes[0] | a->pipes[1]) &
> > + (KOMEDA_EVENT_FLIP | KOMEDA_EVENT_EOW);
> > +}
> > +
> > +void komeda_print_events(struct komeda_events *evts)
> > +{
> > + u64 print_evts = KOMEDA_ERR_EVENTS;
> > + static bool en_print = true;
> > +
> > + /* reduce the same msg print, only print the first evt for one frame */
> > + if (evts->global || is_new_frame(evts))
> > + en_print = true;
> > + if (!en_print)
> > + return;
> > +
> > + if ((evts->global | evts->pipes[0] | evts->pipes[1]) & print_evts) {
> > + char msg[256];
> > + struct komeda_str str;
> > +
> > + str.str = msg;
> > + str.sz = sizeof(msg);
> > + str.len = 0;
> > +
> > + komeda_sprintf(&str, "gcu: ");
> > + evt_str(&str, evts->global);
> > + komeda_sprintf(&str, ", pipes[0]: ");
> > + evt_str(&str, evts->pipes[0]);
> > + komeda_sprintf(&str, ", pipes[1]: ");
> > + evt_str(&str, evts->pipes[1]);
> > +
> > + DRM_ERROR("err detect: %s\n", msg);
> > +
> > + en_print = false;
> > + }
> > +}
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > index 419a8b0..0fafc36 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > @@ -47,6 +47,10 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
> > memset(&evts, 0, sizeof(evts));
> > status = mdev->funcs->irq_handler(mdev, &evts);
> >
> > +#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> > + komeda_print_events(&evts);
> > +#endif
>
> #ifdef in code is discouraged, the usual way we handle these cases is
> by having a dummy static inline function which does nothing in the
> headers for the case a config option isn't enabled.
> -Daniel
Hi Daniel&Mihail:
If so, since this CONFIG is always enabled for komeda, I'd like to
delete this CONFIG option directly.
thanks
james
> > +
> > /* Notify the crtc to handle the events */
> > for (i = 0; i < kms->n_crtcs; i++)
> > komeda_crtc_handle_event(&kms->crtcs[i], &evts);
> > --
> > 1.9.1
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
>
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] drm/komeda: Remove in-code use of ifdef
2019-09-17 15:05 ` [PATCH] drm/komeda: Remove in-code use of ifdef Mihail Atanassov
@ 2019-09-18 7:59 ` Daniel Vetter
2019-09-18 8:23 ` james qian wang (Arm Technology China)
0 siblings, 1 reply; 8+ messages in thread
From: Daniel Vetter @ 2019-09-18 7:59 UTC (permalink / raw)
To: Mihail Atanassov
Cc: Daniel Vetter, Liviu Dudau, maarten.lankhorst, seanpaul, airlied,
Brian Starkey, Ayan Halder, Jonathan Chai (Arm Technology China),
Julien Yin (Arm Technology China),
nd, Lowry Li (Arm Technology China),
james qian wang (Arm Technology China),
dri-devel, linux-kernel
On Tue, Sep 17, 2019 at 03:05:08PM +0000, Mihail Atanassov wrote:
> Provide a dummy static inline function in the header instead.
>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Lowry Li (Arm Technology China) <Lowry.Li@arm.com>
> Cc: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
> Fixes: 4d74b25ee395 ("drm/komeda: Adds error event print functionality")
> Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> ---
> drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 2 ++
> drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 2 --
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> index e28e7e6563ab..8acf8c0601cc 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> @@ -220,6 +220,8 @@ struct komeda_dev *dev_to_mdev(struct device *dev);
>
> #ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> void komeda_print_events(struct komeda_events *evts);
> +#else
> +static inline void komeda_print_events(struct komeda_events *evts) {}
> #endif
>
> #endif /*_KOMEDA_DEV_H_*/
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> index 18d7e2520225..dc85c08e614d 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> @@ -47,9 +47,7 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
> memset(&evts, 0, sizeof(evts));
> status = mdev->funcs->irq_handler(mdev, &evts);
>
> -#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> komeda_print_events(&evts);
> -#endif
>
> /* Notify the crtc to handle the events */
> for (i = 0; i < kms->n_crtcs; i++)
> --
> 2.23.0
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH] drm/komeda: Remove in-code use of ifdef
2019-09-18 7:59 ` Daniel Vetter
@ 2019-09-18 8:23 ` james qian wang (Arm Technology China)
0 siblings, 0 replies; 8+ messages in thread
From: james qian wang (Arm Technology China) @ 2019-09-18 8:23 UTC (permalink / raw)
To: Mihail Atanassov, Liviu Dudau, maarten.lankhorst, seanpaul,
airlied, Brian Starkey, Ayan Halder,
Jonathan Chai (Arm Technology China),
Julien Yin (Arm Technology China),
nd, Lowry Li (Arm Technology China),
dri-devel, linux-kernel
On Wed, Sep 18, 2019 at 09:59:39AM +0200, Daniel Vetter wrote:
> On Tue, Sep 17, 2019 at 03:05:08PM +0000, Mihail Atanassov wrote:
> > Provide a dummy static inline function in the header instead.
> >
> > Cc: Daniel Vetter <daniel@ffwll.ch>
> > Cc: Lowry Li (Arm Technology China) <Lowry.Li@arm.com>
> > Cc: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
> > Fixes: 4d74b25ee395 ("drm/komeda: Adds error event print functionality")
> > Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
>
> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>
Hi Mihail:
Thank you for the patch, and I'll push it to drm-misc
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Thanks
James
> > ---
> > drivers/gpu/drm/arm/display/komeda/komeda_dev.h | 2 ++
> > drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 2 --
> > 2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > index e28e7e6563ab..8acf8c0601cc 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > @@ -220,6 +220,8 @@ struct komeda_dev *dev_to_mdev(struct device *dev);
> >
> > #ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> > void komeda_print_events(struct komeda_events *evts);
> > +#else
> > +static inline void komeda_print_events(struct komeda_events *evts) {}
> > #endif
> >
> > #endif /*_KOMEDA_DEV_H_*/
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > index 18d7e2520225..dc85c08e614d 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
> > @@ -47,9 +47,7 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
> > memset(&evts, 0, sizeof(evts));
> > status = mdev->funcs->irq_handler(mdev, &evts);
> >
> > -#ifdef CONFIG_DRM_KOMEDA_ERROR_PRINT
> > komeda_print_events(&evts);
> > -#endif
> >
> > /* Notify the crtc to handle the events */
> > for (i = 0; i < kms->n_crtcs; i++)
> > --
> > 2.23.0
> >
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2019-09-18 8:23 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2019-08-02 9:43 [PATCH] drm/komeda: Adds error event print functionality Lowry Li (Arm Technology China)
2019-08-02 10:05 ` Mihail Atanassov
2019-08-02 10:43 ` james qian wang (Arm Technology China)
2019-09-17 13:11 ` Daniel Vetter
2019-09-17 15:05 ` [PATCH] drm/komeda: Remove in-code use of ifdef Mihail Atanassov
2019-09-18 7:59 ` Daniel Vetter
2019-09-18 8:23 ` james qian wang (Arm Technology China)
2019-09-18 1:29 ` [PATCH] drm/komeda: Adds error event print functionality james qian wang (Arm Technology China)
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