[Intel-gfx] [RFC 0/3] User friendly lsgpu default output

[Intel-gfx] [RFC 0/3] User friendly lsgpu default output

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

As per individual changelogs end result is:

    $ lsgpu
    card0                   8086:193B    drm:/dev/dri/card0
    └─renderD128                         drm:/dev/dri/renderD128

    $ lsgpu --sysfs
    card0                   8086:193B    sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
    └─renderD128                         sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128

    $ lsgpu --pci
    card0                   8086:193B    pci:/sys/devices/pci0000:00/0000:00:02.0
    └─renderD128

Tvrtko Ursulin (3):
  intel_gpu_top: User friendly device listing
  lsgpu: User friendly device listing
  lsgpu: Add filter type print-out selection

 lib/igt_device_scan.c | 154 +++++++++++++++++++++++++++++++++++++-----
 lib/igt_device_scan.h |  16 ++++-
 tools/intel_gpu_top.c |   7 +-
 tools/lsgpu.c         |  38 +++++++++--
 4 files changed, 188 insertions(+), 27 deletions(-)

-- 
2.25.1

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[Intel-gfx] [RFC 1/3] intel_gpu_top: User friendly device listing

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Adding a new device selection print type suitable for user-facing
use cases like intel_gpu_top -L and later lsgpu.

Instead of:

sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
    subsystem       : drm
    drm card        : /dev/dri/card0
    parent          : sys:/sys/devices/pci0000:00/0000:00:02.0

sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
    subsystem       : drm
    drm render      : /dev/dri/renderD128
    parent          : sys:/sys/devices/pci0000:00/0000:00:02.0

sys:/sys/devices/pci0000:00/0000:00:02.0
    subsystem       : pci
    drm card        : /dev/dri/card0
    drm render      : /dev/dri/renderD128
    vendor          : 8086
    device          : 193B

New format looks like:

card0                   8086:193B    drm:/dev/dri/card0
└─renderD128                         drm:/dev/dri/renderD128

Advantages are more compact, more readable, one entry per GPU, shorter
string to copy and paste to intel_gpu_top -d, or respective usage.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
---
 lib/igt_device_scan.c | 109 +++++++++++++++++++++++++++++++++++++-----
 lib/igt_device_scan.h |   1 +
 tools/intel_gpu_top.c |   3 +-
 3 files changed, 100 insertions(+), 13 deletions(-)

diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
index c581a31ae55e..e66ccdc25aeb 100644
--- a/lib/igt_device_scan.c
+++ b/lib/igt_device_scan.c
@@ -735,18 +735,26 @@ static inline void _pr_simple2(const char *k, const char *v1, const char *v2)
 	printf("    %-16s: %s:%s\n", k, v1, v2);
 }
 
-static void igt_devs_print_simple(struct igt_list_head *view)
+static bool __check_empty(struct igt_list_head *view)
 {
-	struct igt_device *dev;
-
 	if (!view)
-		return;
+		return true;
 
 	if (igt_list_empty(view)) {
 		printf("No GPU devices found\n");
-		return;
+		return true;
 	}
 
+	return false;
+}
+
+static void igt_devs_print_simple(struct igt_list_head *view)
+{
+	struct igt_device *dev;
+
+	if (__check_empty(view))
+		return;
+
 	igt_list_for_each_entry(dev, view, link) {
 		printf("sys:%s\n", dev->syspath);
 		if (dev->subsystem)
@@ -768,6 +776,89 @@ static void igt_devs_print_simple(struct igt_list_head *view)
 	}
 }
 
+static struct igt_device *
+__find_pci(struct igt_list_head *view, const char *drm)
+{
+	struct igt_device *dev;
+
+	igt_list_for_each_entry(dev, view, link) {
+		if (!is_pci_subsystem(dev) || !dev->drm_card)
+			continue;
+
+		if (!strcmp(dev->drm_card, drm))
+			return dev;
+	}
+
+	return NULL;
+}
+
+static void igt_devs_print_user(struct igt_list_head *view)
+{
+	struct igt_device *dev;
+
+	if (__check_empty(view))
+		return;
+
+	igt_list_for_each_entry(dev, view, link) {
+		unsigned int i, num_children;
+		struct igt_device *pci_dev;
+		struct igt_device *dev2;
+		char filter[64];
+		char *drm_name;
+		int ret;
+
+		if (!is_drm_subsystem(dev))
+			continue;
+		if (!dev->drm_card || dev->drm_render)
+			continue;
+
+		drm_name = rindex(dev->drm_card, '/');
+		if (!drm_name || !*++drm_name)
+			continue;
+
+		ret = snprintf(filter, sizeof(filter), "drm:%s", dev->drm_card);
+		igt_assert(ret < sizeof(filter));
+
+		pci_dev = __find_pci(view, dev->drm_card);
+		if (pci_dev)
+			printf("%-24s%4s:%4s    %s\n",
+			       drm_name, pci_dev->vendor, pci_dev->device,
+			       filter);
+		else
+			printf("%-24s             %s\n", drm_name, filter);
+
+		num_children = 0;
+		igt_list_for_each_entry(dev2, view, link) {
+			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
+				continue;
+			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
+				continue;
+
+			num_children++;
+		}
+
+		i = 0;
+		igt_list_for_each_entry(dev2, view, link) {
+			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
+				continue;
+			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
+				continue;
+
+			drm_name = rindex(dev2->drm_render, '/');
+			if (!drm_name || !*++drm_name)
+				continue;
+
+			ret = snprintf(filter, sizeof(filter), "drm:%s",
+				       dev2->drm_render);
+			igt_assert(ret < sizeof(filter));
+
+			printf("%s%-22s             %s\n",
+			       (++i == num_children) ? "└─" : "├─",
+			       drm_name, filter);
+		}
+	}
+}
+
 static inline void _print_key_value(const char* k, const char *v)
 {
 	printf("%-32s: %s\n", k, v);
@@ -792,14 +883,9 @@ static void igt_devs_print_detail(struct igt_list_head *view)
 {
 	struct igt_device *dev;
 
-	if (!view)
+	if (__check_empty(view))
 		return;
 
-	if (igt_list_empty(view)) {
-		printf("No GPU devices found\n");
-		return;
-	}
-
 	igt_list_for_each_entry(dev, view, link) {
 		printf("========== %s:%s ==========\n",
 		       dev->subsystem, dev->syspath);
@@ -821,6 +907,7 @@ static struct print_func {
 } print_functions[] = {
 	[IGT_PRINT_SIMPLE] = { .prn = igt_devs_print_simple },
 	[IGT_PRINT_DETAIL] = { .prn = igt_devs_print_detail },
+	[IGT_PRINT_USER] = { .prn = igt_devs_print_user },
 };
 
 /**
diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
index 99daee0c52d6..9822c22cb69c 100644
--- a/lib/igt_device_scan.h
+++ b/lib/igt_device_scan.h
@@ -37,6 +37,7 @@
 enum igt_devices_print_type {
 	IGT_PRINT_SIMPLE,
 	IGT_PRINT_DETAIL,
+	IGT_PRINT_USER, /* End user friendly. */
 };
 
 #define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index 298defa4e6ed..5230472d2af4 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -1313,7 +1313,6 @@ int main(int argc, char **argv)
 	unsigned int i;
 	int ret = 0, ch;
 	bool list_device = false;
-	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
 	char *pmu_device, *opt_device = NULL;
 	struct igt_device_card card;
 
@@ -1388,7 +1387,7 @@ int main(int argc, char **argv)
 	igt_devices_scan(false);
 
 	if (list_device) {
-		igt_devices_print(printtype);
+		igt_devices_print(IGT_PRINT_USER);
 		goto exit;
 	}
 
-- 
2.25.1

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Re: [Intel-gfx] [RFC 1/3] intel_gpu_top: User friendly device listing

[Zbigniew Kempczyński]

On Mon, Nov 09, 2020 at 10:48:09AM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Adding a new device selection print type suitable for user-facing
> use cases like intel_gpu_top -L and later lsgpu.
> 
> Instead of:
> 
> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
>     subsystem       : drm
>     drm card        : /dev/dri/card0
>     parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> 
> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
>     subsystem       : drm
>     drm render      : /dev/dri/renderD128
>     parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> 
> sys:/sys/devices/pci0000:00/0000:00:02.0
>     subsystem       : pci
>     drm card        : /dev/dri/card0
>     drm render      : /dev/dri/renderD128
>     vendor          : 8086
>     device          : 193B
> 
> New format looks like:
> 
> card0                   8086:193B    drm:/dev/dri/card0
> └─renderD128                         drm:/dev/dri/renderD128
> 
> Advantages are more compact, more readable, one entry per GPU, shorter
> string to copy and paste to intel_gpu_top -d, or respective usage.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Cc: Petri Latvala <petri.latvala@intel.com>
> Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> ---
>  lib/igt_device_scan.c | 109 +++++++++++++++++++++++++++++++++++++-----
>  lib/igt_device_scan.h |   1 +
>  tools/intel_gpu_top.c |   3 +-
>  3 files changed, 100 insertions(+), 13 deletions(-)
> 
> diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
> index c581a31ae55e..e66ccdc25aeb 100644
> --- a/lib/igt_device_scan.c
> +++ b/lib/igt_device_scan.c
> @@ -735,18 +735,26 @@ static inline void _pr_simple2(const char *k, const char *v1, const char *v2)
>  	printf("    %-16s: %s:%s\n", k, v1, v2);
>  }
>  
> -static void igt_devs_print_simple(struct igt_list_head *view)
> +static bool __check_empty(struct igt_list_head *view)
>  {
> -	struct igt_device *dev;
> -
>  	if (!view)
> -		return;
> +		return true;
>  
>  	if (igt_list_empty(view)) {
>  		printf("No GPU devices found\n");
> -		return;
> +		return true;
>  	}
>  
> +	return false;
> +}
> +
> +static void igt_devs_print_simple(struct igt_list_head *view)
> +{
> +	struct igt_device *dev;
> +
> +	if (__check_empty(view))
> +		return;
> +
>  	igt_list_for_each_entry(dev, view, link) {
>  		printf("sys:%s\n", dev->syspath);
>  		if (dev->subsystem)
> @@ -768,6 +776,89 @@ static void igt_devs_print_simple(struct igt_list_head *view)
>  	}
>  }
>  
> +static struct igt_device *
> +__find_pci(struct igt_list_head *view, const char *drm)
> +{
> +	struct igt_device *dev;
> +
> +	igt_list_for_each_entry(dev, view, link) {
> +		if (!is_pci_subsystem(dev) || !dev->drm_card)
> +			continue;
> +
> +		if (!strcmp(dev->drm_card, drm))
> +			return dev;
> +	}
> +
> +	return NULL;
> +}
> +
> +static void igt_devs_print_user(struct igt_list_head *view)
> +{
> +	struct igt_device *dev;
> +
> +	if (__check_empty(view))
> +		return;
> +
> +	igt_list_for_each_entry(dev, view, link) {
> +		unsigned int i, num_children;
> +		struct igt_device *pci_dev;
> +		struct igt_device *dev2;
> +		char filter[64];
> +		char *drm_name;
> +		int ret;
> +
> +		if (!is_drm_subsystem(dev))
> +			continue;
> +		if (!dev->drm_card || dev->drm_render)
> +			continue;
> +
> +		drm_name = rindex(dev->drm_card, '/');
> +		if (!drm_name || !*++drm_name)
> +			continue;
> +
> +		ret = snprintf(filter, sizeof(filter), "drm:%s", dev->drm_card);
> +		igt_assert(ret < sizeof(filter));
> +
> +		pci_dev = __find_pci(view, dev->drm_card);
> +		if (pci_dev)
> +			printf("%-24s%4s:%4s    %s\n",
> +			       drm_name, pci_dev->vendor, pci_dev->device,
> +			       filter);
> +		else
> +			printf("%-24s             %s\n", drm_name, filter);
> +
> +		num_children = 0;
> +		igt_list_for_each_entry(dev2, view, link) {
> +			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
> +				continue;
> +			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
> +				continue;
> +
> +			num_children++;
> +		}
> +
> +		i = 0;
> +		igt_list_for_each_entry(dev2, view, link) {
> +			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
> +				continue;
> +			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
> +				continue;
> +
> +			drm_name = rindex(dev2->drm_render, '/');
> +			if (!drm_name || !*++drm_name)
> +				continue;
> +
> +			ret = snprintf(filter, sizeof(filter), "drm:%s",
> +				       dev2->drm_render);
> +			igt_assert(ret < sizeof(filter));
> +
> +			printf("%s%-22s             %s\n",
> +			       (++i == num_children) ? "└─" : "├─",
> +			       drm_name, filter);
> +		}
> +	}
> +}
> +
>  static inline void _print_key_value(const char* k, const char *v)
>  {
>  	printf("%-32s: %s\n", k, v);
> @@ -792,14 +883,9 @@ static void igt_devs_print_detail(struct igt_list_head *view)
>  {
>  	struct igt_device *dev;
>  
> -	if (!view)
> +	if (__check_empty(view))
>  		return;
>  
> -	if (igt_list_empty(view)) {
> -		printf("No GPU devices found\n");
> -		return;
> -	}
> -
>  	igt_list_for_each_entry(dev, view, link) {
>  		printf("========== %s:%s ==========\n",
>  		       dev->subsystem, dev->syspath);
> @@ -821,6 +907,7 @@ static struct print_func {
>  } print_functions[] = {
>  	[IGT_PRINT_SIMPLE] = { .prn = igt_devs_print_simple },
>  	[IGT_PRINT_DETAIL] = { .prn = igt_devs_print_detail },
> +	[IGT_PRINT_USER] = { .prn = igt_devs_print_user },
>  };
>  
>  /**
> diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
> index 99daee0c52d6..9822c22cb69c 100644
> --- a/lib/igt_device_scan.h
> +++ b/lib/igt_device_scan.h
> @@ -37,6 +37,7 @@
>  enum igt_devices_print_type {
>  	IGT_PRINT_SIMPLE,
>  	IGT_PRINT_DETAIL,
> +	IGT_PRINT_USER, /* End user friendly. */
>  };
>  
>  #define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
> index 298defa4e6ed..5230472d2af4 100644
> --- a/tools/intel_gpu_top.c
> +++ b/tools/intel_gpu_top.c
> @@ -1313,7 +1313,6 @@ int main(int argc, char **argv)
>  	unsigned int i;
>  	int ret = 0, ch;
>  	bool list_device = false;
> -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
>  	char *pmu_device, *opt_device = NULL;
>  	struct igt_device_card card;
>  
> @@ -1388,7 +1387,7 @@ int main(int argc, char **argv)
>  	igt_devices_scan(false);
>  
>  	if (list_device) {
> -		igt_devices_print(printtype);
> +		igt_devices_print(IGT_PRINT_USER);

I would add at least possibility to use simple view to suggest 
how to use pci/sys filter. With USER print format we see only
drm paths. But I won't insist for that, using drm selection
is ok for me. 

Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>

--
Zbigniew 

>  		goto exit;
>  	}
>  
> -- 
> 2.25.1
> 
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Re: [Intel-gfx] [RFC 1/3] intel_gpu_top: User friendly device listing

[Tvrtko Ursulin]

On 10/11/2020 11:13, Zbigniew Kempczyński wrote:
> On Mon, Nov 09, 2020 at 10:48:09AM +0000, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> Adding a new device selection print type suitable for user-facing
>> use cases like intel_gpu_top -L and later lsgpu.
>>
>> Instead of:
>>
>> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
>>      subsystem       : drm
>>      drm card        : /dev/dri/card0
>>      parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
>>
>> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
>>      subsystem       : drm
>>      drm render      : /dev/dri/renderD128
>>      parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
>>
>> sys:/sys/devices/pci0000:00/0000:00:02.0
>>      subsystem       : pci
>>      drm card        : /dev/dri/card0
>>      drm render      : /dev/dri/renderD128
>>      vendor          : 8086
>>      device          : 193B
>>
>> New format looks like:
>>
>> card0                   8086:193B    drm:/dev/dri/card0
>> └─renderD128                         drm:/dev/dri/renderD128
>>
>> Advantages are more compact, more readable, one entry per GPU, shorter
>> string to copy and paste to intel_gpu_top -d, or respective usage.
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>> Cc: Petri Latvala <petri.latvala@intel.com>
>> Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
>> ---
>>   lib/igt_device_scan.c | 109 +++++++++++++++++++++++++++++++++++++-----
>>   lib/igt_device_scan.h |   1 +
>>   tools/intel_gpu_top.c |   3 +-
>>   3 files changed, 100 insertions(+), 13 deletions(-)
>>
>> diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
>> index c581a31ae55e..e66ccdc25aeb 100644
>> --- a/lib/igt_device_scan.c
>> +++ b/lib/igt_device_scan.c
>> @@ -735,18 +735,26 @@ static inline void _pr_simple2(const char *k, const char *v1, const char *v2)
>>   	printf("    %-16s: %s:%s\n", k, v1, v2);
>>   }
>>   
>> -static void igt_devs_print_simple(struct igt_list_head *view)
>> +static bool __check_empty(struct igt_list_head *view)
>>   {
>> -	struct igt_device *dev;
>> -
>>   	if (!view)
>> -		return;
>> +		return true;
>>   
>>   	if (igt_list_empty(view)) {
>>   		printf("No GPU devices found\n");
>> -		return;
>> +		return true;
>>   	}
>>   
>> +	return false;
>> +}
>> +
>> +static void igt_devs_print_simple(struct igt_list_head *view)
>> +{
>> +	struct igt_device *dev;
>> +
>> +	if (__check_empty(view))
>> +		return;
>> +
>>   	igt_list_for_each_entry(dev, view, link) {
>>   		printf("sys:%s\n", dev->syspath);
>>   		if (dev->subsystem)
>> @@ -768,6 +776,89 @@ static void igt_devs_print_simple(struct igt_list_head *view)
>>   	}
>>   }
>>   
>> +static struct igt_device *
>> +__find_pci(struct igt_list_head *view, const char *drm)
>> +{
>> +	struct igt_device *dev;
>> +
>> +	igt_list_for_each_entry(dev, view, link) {
>> +		if (!is_pci_subsystem(dev) || !dev->drm_card)
>> +			continue;
>> +
>> +		if (!strcmp(dev->drm_card, drm))
>> +			return dev;
>> +	}
>> +
>> +	return NULL;
>> +}
>> +
>> +static void igt_devs_print_user(struct igt_list_head *view)
>> +{
>> +	struct igt_device *dev;
>> +
>> +	if (__check_empty(view))
>> +		return;
>> +
>> +	igt_list_for_each_entry(dev, view, link) {
>> +		unsigned int i, num_children;
>> +		struct igt_device *pci_dev;
>> +		struct igt_device *dev2;
>> +		char filter[64];
>> +		char *drm_name;
>> +		int ret;
>> +
>> +		if (!is_drm_subsystem(dev))
>> +			continue;
>> +		if (!dev->drm_card || dev->drm_render)
>> +			continue;
>> +
>> +		drm_name = rindex(dev->drm_card, '/');
>> +		if (!drm_name || !*++drm_name)
>> +			continue;
>> +
>> +		ret = snprintf(filter, sizeof(filter), "drm:%s", dev->drm_card);
>> +		igt_assert(ret < sizeof(filter));
>> +
>> +		pci_dev = __find_pci(view, dev->drm_card);
>> +		if (pci_dev)
>> +			printf("%-24s%4s:%4s    %s\n",
>> +			       drm_name, pci_dev->vendor, pci_dev->device,
>> +			       filter);
>> +		else
>> +			printf("%-24s             %s\n", drm_name, filter);
>> +
>> +		num_children = 0;
>> +		igt_list_for_each_entry(dev2, view, link) {
>> +			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
>> +				continue;
>> +			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
>> +				continue;
>> +
>> +			num_children++;
>> +		}
>> +
>> +		i = 0;
>> +		igt_list_for_each_entry(dev2, view, link) {
>> +			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
>> +				continue;
>> +			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
>> +				continue;
>> +
>> +			drm_name = rindex(dev2->drm_render, '/');
>> +			if (!drm_name || !*++drm_name)
>> +				continue;
>> +
>> +			ret = snprintf(filter, sizeof(filter), "drm:%s",
>> +				       dev2->drm_render);
>> +			igt_assert(ret < sizeof(filter));
>> +
>> +			printf("%s%-22s             %s\n",
>> +			       (++i == num_children) ? "└─" : "├─",
>> +			       drm_name, filter);
>> +		}
>> +	}
>> +}
>> +
>>   static inline void _print_key_value(const char* k, const char *v)
>>   {
>>   	printf("%-32s: %s\n", k, v);
>> @@ -792,14 +883,9 @@ static void igt_devs_print_detail(struct igt_list_head *view)
>>   {
>>   	struct igt_device *dev;
>>   
>> -	if (!view)
>> +	if (__check_empty(view))
>>   		return;
>>   
>> -	if (igt_list_empty(view)) {
>> -		printf("No GPU devices found\n");
>> -		return;
>> -	}
>> -
>>   	igt_list_for_each_entry(dev, view, link) {
>>   		printf("========== %s:%s ==========\n",
>>   		       dev->subsystem, dev->syspath);
>> @@ -821,6 +907,7 @@ static struct print_func {
>>   } print_functions[] = {
>>   	[IGT_PRINT_SIMPLE] = { .prn = igt_devs_print_simple },
>>   	[IGT_PRINT_DETAIL] = { .prn = igt_devs_print_detail },
>> +	[IGT_PRINT_USER] = { .prn = igt_devs_print_user },
>>   };
>>   
>>   /**
>> diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
>> index 99daee0c52d6..9822c22cb69c 100644
>> --- a/lib/igt_device_scan.h
>> +++ b/lib/igt_device_scan.h
>> @@ -37,6 +37,7 @@
>>   enum igt_devices_print_type {
>>   	IGT_PRINT_SIMPLE,
>>   	IGT_PRINT_DETAIL,
>> +	IGT_PRINT_USER, /* End user friendly. */
>>   };
>>   
>>   #define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
>> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
>> index 298defa4e6ed..5230472d2af4 100644
>> --- a/tools/intel_gpu_top.c
>> +++ b/tools/intel_gpu_top.c
>> @@ -1313,7 +1313,6 @@ int main(int argc, char **argv)
>>   	unsigned int i;
>>   	int ret = 0, ch;
>>   	bool list_device = false;
>> -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
>>   	char *pmu_device, *opt_device = NULL;
>>   	struct igt_device_card card;
>>   
>> @@ -1388,7 +1387,7 @@ int main(int argc, char **argv)
>>   	igt_devices_scan(false);
>>   
>>   	if (list_device) {
>> -		igt_devices_print(printtype);
>> +		igt_devices_print(IGT_PRINT_USER);
> 
> I would add at least possibility to use simple view to suggest
> how to use pci/sys filter. With USER print format we see only

You mean the blurb printed out by igt_device_print_filter_types 
(currently printed as part of help text) or something else?

> drm paths. But I won't insist for that, using drm selection
> is ok for me.

Good point actually, intel_gpu_top should probably default to "--pci" 
listing type since it monitors GPUs with no notion of DRM master/render.

> Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>

Thanks! Let me know if you agree with "--pci" by default for 
intel_gpu_top and if it is okay to keep the r-b?

Regards,

Tvrtko
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Re: [Intel-gfx] [RFC 1/3] intel_gpu_top: User friendly device listing

[Zbigniew Kempczyński]

On Tue, Nov 10, 2020 at 11:19:46AM +0000, Tvrtko Ursulin wrote:
> 
> On 10/11/2020 11:13, Zbigniew Kempczyński wrote:
> > On Mon, Nov 09, 2020 at 10:48:09AM +0000, Tvrtko Ursulin wrote:
> > > From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> > > 
> > > Adding a new device selection print type suitable for user-facing
> > > use cases like intel_gpu_top -L and later lsgpu.
> > > 
> > > Instead of:
> > > 
> > > sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
> > >      subsystem       : drm
> > >      drm card        : /dev/dri/card0
> > >      parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> > > 
> > > sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
> > >      subsystem       : drm
> > >      drm render      : /dev/dri/renderD128
> > >      parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> > > 
> > > sys:/sys/devices/pci0000:00/0000:00:02.0
> > >      subsystem       : pci
> > >      drm card        : /dev/dri/card0
> > >      drm render      : /dev/dri/renderD128
> > >      vendor          : 8086
> > >      device          : 193B
> > > 
> > > New format looks like:
> > > 
> > > card0                   8086:193B    drm:/dev/dri/card0
> > > └─renderD128                         drm:/dev/dri/renderD128
> > > 
> > > Advantages are more compact, more readable, one entry per GPU, shorter
> > > string to copy and paste to intel_gpu_top -d, or respective usage.
> > > 
> > > Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> > > Cc: Petri Latvala <petri.latvala@intel.com>
> > > Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> > > ---
> > >   lib/igt_device_scan.c | 109 +++++++++++++++++++++++++++++++++++++-----
> > >   lib/igt_device_scan.h |   1 +
> > >   tools/intel_gpu_top.c |   3 +-
> > >   3 files changed, 100 insertions(+), 13 deletions(-)
> > > 
> > > diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
> > > index c581a31ae55e..e66ccdc25aeb 100644
> > > --- a/lib/igt_device_scan.c
> > > +++ b/lib/igt_device_scan.c
> > > @@ -735,18 +735,26 @@ static inline void _pr_simple2(const char *k, const char *v1, const char *v2)
> > >   	printf("    %-16s: %s:%s\n", k, v1, v2);
> > >   }
> > > -static void igt_devs_print_simple(struct igt_list_head *view)
> > > +static bool __check_empty(struct igt_list_head *view)
> > >   {
> > > -	struct igt_device *dev;
> > > -
> > >   	if (!view)
> > > -		return;
> > > +		return true;
> > >   	if (igt_list_empty(view)) {
> > >   		printf("No GPU devices found\n");
> > > -		return;
> > > +		return true;
> > >   	}
> > > +	return false;
> > > +}
> > > +
> > > +static void igt_devs_print_simple(struct igt_list_head *view)
> > > +{
> > > +	struct igt_device *dev;
> > > +
> > > +	if (__check_empty(view))
> > > +		return;
> > > +
> > >   	igt_list_for_each_entry(dev, view, link) {
> > >   		printf("sys:%s\n", dev->syspath);
> > >   		if (dev->subsystem)
> > > @@ -768,6 +776,89 @@ static void igt_devs_print_simple(struct igt_list_head *view)
> > >   	}
> > >   }
> > > +static struct igt_device *
> > > +__find_pci(struct igt_list_head *view, const char *drm)
> > > +{
> > > +	struct igt_device *dev;
> > > +
> > > +	igt_list_for_each_entry(dev, view, link) {
> > > +		if (!is_pci_subsystem(dev) || !dev->drm_card)
> > > +			continue;
> > > +
> > > +		if (!strcmp(dev->drm_card, drm))
> > > +			return dev;
> > > +	}
> > > +
> > > +	return NULL;
> > > +}
> > > +
> > > +static void igt_devs_print_user(struct igt_list_head *view)
> > > +{
> > > +	struct igt_device *dev;
> > > +
> > > +	if (__check_empty(view))
> > > +		return;
> > > +
> > > +	igt_list_for_each_entry(dev, view, link) {
> > > +		unsigned int i, num_children;
> > > +		struct igt_device *pci_dev;
> > > +		struct igt_device *dev2;
> > > +		char filter[64];
> > > +		char *drm_name;
> > > +		int ret;
> > > +
> > > +		if (!is_drm_subsystem(dev))
> > > +			continue;
> > > +		if (!dev->drm_card || dev->drm_render)
> > > +			continue;
> > > +
> > > +		drm_name = rindex(dev->drm_card, '/');
> > > +		if (!drm_name || !*++drm_name)
> > > +			continue;
> > > +
> > > +		ret = snprintf(filter, sizeof(filter), "drm:%s", dev->drm_card);
> > > +		igt_assert(ret < sizeof(filter));
> > > +
> > > +		pci_dev = __find_pci(view, dev->drm_card);
> > > +		if (pci_dev)
> > > +			printf("%-24s%4s:%4s    %s\n",
> > > +			       drm_name, pci_dev->vendor, pci_dev->device,
> > > +			       filter);
> > > +		else
> > > +			printf("%-24s             %s\n", drm_name, filter);
> > > +
> > > +		num_children = 0;
> > > +		igt_list_for_each_entry(dev2, view, link) {
> > > +			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
> > > +				continue;
> > > +			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
> > > +				continue;
> > > +
> > > +			num_children++;
> > > +		}
> > > +
> > > +		i = 0;
> > > +		igt_list_for_each_entry(dev2, view, link) {
> > > +			if (!is_drm_subsystem(dev2) || !dev2->drm_render)
> > > +				continue;
> > > +			if (strcmp(dev2->parent->syspath, dev->parent->syspath))
> > > +				continue;
> > > +
> > > +			drm_name = rindex(dev2->drm_render, '/');
> > > +			if (!drm_name || !*++drm_name)
> > > +				continue;
> > > +
> > > +			ret = snprintf(filter, sizeof(filter), "drm:%s",
> > > +				       dev2->drm_render);
> > > +			igt_assert(ret < sizeof(filter));
> > > +
> > > +			printf("%s%-22s             %s\n",
> > > +			       (++i == num_children) ? "└─" : "├─",
> > > +			       drm_name, filter);
> > > +		}
> > > +	}
> > > +}
> > > +
> > >   static inline void _print_key_value(const char* k, const char *v)
> > >   {
> > >   	printf("%-32s: %s\n", k, v);
> > > @@ -792,14 +883,9 @@ static void igt_devs_print_detail(struct igt_list_head *view)
> > >   {
> > >   	struct igt_device *dev;
> > > -	if (!view)
> > > +	if (__check_empty(view))
> > >   		return;
> > > -	if (igt_list_empty(view)) {
> > > -		printf("No GPU devices found\n");
> > > -		return;
> > > -	}
> > > -
> > >   	igt_list_for_each_entry(dev, view, link) {
> > >   		printf("========== %s:%s ==========\n",
> > >   		       dev->subsystem, dev->syspath);
> > > @@ -821,6 +907,7 @@ static struct print_func {
> > >   } print_functions[] = {
> > >   	[IGT_PRINT_SIMPLE] = { .prn = igt_devs_print_simple },
> > >   	[IGT_PRINT_DETAIL] = { .prn = igt_devs_print_detail },
> > > +	[IGT_PRINT_USER] = { .prn = igt_devs_print_user },
> > >   };
> > >   /**
> > > diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
> > > index 99daee0c52d6..9822c22cb69c 100644
> > > --- a/lib/igt_device_scan.h
> > > +++ b/lib/igt_device_scan.h
> > > @@ -37,6 +37,7 @@
> > >   enum igt_devices_print_type {
> > >   	IGT_PRINT_SIMPLE,
> > >   	IGT_PRINT_DETAIL,
> > > +	IGT_PRINT_USER, /* End user friendly. */
> > >   };
> > >   #define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
> > > diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
> > > index 298defa4e6ed..5230472d2af4 100644
> > > --- a/tools/intel_gpu_top.c
> > > +++ b/tools/intel_gpu_top.c
> > > @@ -1313,7 +1313,6 @@ int main(int argc, char **argv)
> > >   	unsigned int i;
> > >   	int ret = 0, ch;
> > >   	bool list_device = false;
> > > -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
> > >   	char *pmu_device, *opt_device = NULL;
> > >   	struct igt_device_card card;
> > > @@ -1388,7 +1387,7 @@ int main(int argc, char **argv)
> > >   	igt_devices_scan(false);
> > >   	if (list_device) {
> > > -		igt_devices_print(printtype);
> > > +		igt_devices_print(IGT_PRINT_USER);
> > 
> > I would add at least possibility to use simple view to suggest
> > how to use pci/sys filter. With USER print format we see only
> 
> You mean the blurb printed out by igt_device_print_filter_types (currently
> printed as part of help text) or something else?

Yes. We know lsgpu and intel_gpu_top selection is same and you're
also printing filter syntax on 'intel_gpu_top -h'. But without 
using 'lsgpu -s' you won't guess how to specify sys:... filter.

> 
> > drm paths. But I won't insist for that, using drm selection
> > is ok for me.
> 
> Good point actually, intel_gpu_top should probably default to "--pci"
> listing type since it monitors GPUs with no notion of DRM master/render.
> 
> > Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> 
> Thanks! Let me know if you agree with "--pci" by default for intel_gpu_top
> and if it is okay to keep the r-b?

If it is not problem you could provide --pci and --sysfs too to be compliant
with lsgpu switches. But there are minor nits and you can keep r-b with 
the code as it is.  

> 
> Regards,
> 
> Tvrtko

--
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Re: [Intel-gfx] [RFC 1/3] intel_gpu_top: User friendly device listing

[Tvrtko Ursulin]

On 10/11/2020 11:46, Zbigniew Kempczyński wrote:

[snip]

>>>> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
>>>> index 298defa4e6ed..5230472d2af4 100644
>>>> --- a/tools/intel_gpu_top.c
>>>> +++ b/tools/intel_gpu_top.c
>>>> @@ -1313,7 +1313,6 @@ int main(int argc, char **argv)
>>>>    	unsigned int i;
>>>>    	int ret = 0, ch;
>>>>    	bool list_device = false;
>>>> -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
>>>>    	char *pmu_device, *opt_device = NULL;
>>>>    	struct igt_device_card card;
>>>> @@ -1388,7 +1387,7 @@ int main(int argc, char **argv)
>>>>    	igt_devices_scan(false);
>>>>    	if (list_device) {
>>>> -		igt_devices_print(printtype);
>>>> +		igt_devices_print(IGT_PRINT_USER);
>>>
>>> I would add at least possibility to use simple view to suggest
>>> how to use pci/sys filter. With USER print format we see only
>>
>> You mean the blurb printed out by igt_device_print_filter_types (currently
>> printed as part of help text) or something else?
> 
> Yes. We know lsgpu and intel_gpu_top selection is same and you're
> also printing filter syntax on 'intel_gpu_top -h'. But without
> using 'lsgpu -s' you won't guess how to specify sys:... filter.

My thinking is that typical intel_gpu_top user wouldn't want/need to 
concern themselves with different filters but just copy&paste what was 
listed from intel_gpu_top -L. In which case..

>>
>>> drm paths. But I won't insist for that, using drm selection
>>> is ok for me.
>>
>> Good point actually, intel_gpu_top should probably default to "--pci"
>> listing type since it monitors GPUs with no notion of DRM master/render.
>>
>>> Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
>>
>> Thanks! Let me know if you agree with "--pci" by default for intel_gpu_top
>> and if it is okay to keep the r-b?
> 
> If it is not problem you could provide --pci and --sysfs too to be compliant
> with lsgpu switches. But there are minor nits and you can keep r-b with
> the code as it is.

... I did not see the value of supporting --drm/--pci/--sysfs from 
intel_gpu_top.

So "--pci" by default should "JustWork" and make end users happy. As 
long as the help text is clear enough what needs to be copy&pasted, 
which may need improvement. If I am not missing something else.

Regards,

Tvrtko
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Re: [Intel-gfx] [RFC 1/3] intel_gpu_top: User friendly device listing

[Zbigniew Kempczyński]

On Tue, Nov 10, 2020 at 11:52:50AM +0000, Tvrtko Ursulin wrote:
> 
> On 10/11/2020 11:46, Zbigniew Kempczyński wrote:
> 
> [snip]
> 
> > > > > diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
> > > > > index 298defa4e6ed..5230472d2af4 100644
> > > > > --- a/tools/intel_gpu_top.c
> > > > > +++ b/tools/intel_gpu_top.c
> > > > > @@ -1313,7 +1313,6 @@ int main(int argc, char **argv)
> > > > >    	unsigned int i;
> > > > >    	int ret = 0, ch;
> > > > >    	bool list_device = false;
> > > > > -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
> > > > >    	char *pmu_device, *opt_device = NULL;
> > > > >    	struct igt_device_card card;
> > > > > @@ -1388,7 +1387,7 @@ int main(int argc, char **argv)
> > > > >    	igt_devices_scan(false);
> > > > >    	if (list_device) {
> > > > > -		igt_devices_print(printtype);
> > > > > +		igt_devices_print(IGT_PRINT_USER);
> > > > 
> > > > I would add at least possibility to use simple view to suggest
> > > > how to use pci/sys filter. With USER print format we see only
> > > 
> > > You mean the blurb printed out by igt_device_print_filter_types (currently
> > > printed as part of help text) or something else?
> > 
> > Yes. We know lsgpu and intel_gpu_top selection is same and you're
> > also printing filter syntax on 'intel_gpu_top -h'. But without
> > using 'lsgpu -s' you won't guess how to specify sys:... filter.
> 
> My thinking is that typical intel_gpu_top user wouldn't want/need to concern
> themselves with different filters but just copy&paste what was listed from
> intel_gpu_top -L. In which case..
> 
> > > 
> > > > drm paths. But I won't insist for that, using drm selection
> > > > is ok for me.
> > > 
> > > Good point actually, intel_gpu_top should probably default to "--pci"
> > > listing type since it monitors GPUs with no notion of DRM master/render.
> > > 
> > > > Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> > > 
> > > Thanks! Let me know if you agree with "--pci" by default for intel_gpu_top
> > > and if it is okay to keep the r-b?
> > 
> > If it is not problem you could provide --pci and --sysfs too to be compliant
> > with lsgpu switches. But there are minor nits and you can keep r-b with
> > the code as it is.
> 
> ... I did not see the value of supporting --drm/--pci/--sysfs from
> intel_gpu_top.
> 
> So "--pci" by default should "JustWork" and make end users happy. As long as
> the help text is clear enough what needs to be copy&pasted, which may need
> improvement. If I am not missing something else.
> 
> Regards,
> 
> Tvrtko

Ok. Probably you're right and users won't need any other selectors.
If they will we will change the code. 

--
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[Intel-gfx] [RFC 2/3] lsgpu: User friendly device listing

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

New default user frindly device listing mode which replaces:

sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
    subsystem       : drm
    drm card        : /dev/dri/card0
    parent          : sys:/sys/devices/pci0000:00/0000:00:02.0

sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
   subsystem       : drm
   drm render      : /dev/dri/renderD128
   parent          : sys:/sys/devices/pci0000:00/0000:00:02.0

sys:/sys/devices/pci0000:00/0000:00:02.0
   subsystem       : pci
    drm card        : /dev/dri/card0
    drm render      : /dev/dri/renderD128
    vendor          : 8086
    device          : 193B

With:

card0                   8086:193B    drm:/dev/dri/card0
└─renderD128                         drm:/dev/dri/renderD128

Advantages are more compact, more readable, one entry per GPU.

Legacy format can be chose using the -s / --print-simple command line
switches.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
---
 tools/lsgpu.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/lsgpu.c b/tools/lsgpu.c
index 2541d1c24e66..3b234b73361a 100644
--- a/tools/lsgpu.c
+++ b/tools/lsgpu.c
@@ -70,6 +70,7 @@
  */
 
 enum {
+	OPT_PRINT_SIMPLE   = 's',
 	OPT_PRINT_DETAIL   = 'p',
 	OPT_LIST_VENDORS   = 'v',
 	OPT_LIST_FILTERS   = 'l',
@@ -85,6 +86,7 @@ static char *igt_device;
 static const char *usage_str =
 	"usage: lsgpu [options]\n\n"
 	"Options:\n"
+	"  -s, --print-simple          Print simple (legacy) device details\n"
 	"  -p, --print-details         Print devices with details\n"
 	"  -v, --list-vendors          List recognized vendors\n"
 	"  -l, --list-filter-types     List registered device filters types\n"
@@ -151,6 +153,7 @@ static char *get_device_from_rc(void)
 int main(int argc, char *argv[])
 {
 	static struct option long_options[] = {
+		{"print-simple",      no_argument,       NULL, OPT_PRINT_SIMPLE},
 		{"print-detail",      no_argument,       NULL, OPT_PRINT_DETAIL},
 		{"list-vendors",      no_argument,       NULL, OPT_LIST_VENDORS},
 		{"list-filter-types", no_argument,       NULL, OPT_LIST_FILTERS},
@@ -160,12 +163,15 @@ int main(int argc, char *argv[])
 	};
 	int c, index = 0;
 	char *env_device = NULL, *opt_device = NULL, *rc_device = NULL;
-	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
+	enum igt_devices_print_type printtype = IGT_PRINT_USER;
 
-	while ((c = getopt_long(argc, argv, "pvld:h",
+	while ((c = getopt_long(argc, argv, "spvld:h",
 				long_options, &index)) != -1) {
 		switch(c) {
 
+		case OPT_PRINT_SIMPLE:
+			printtype = IGT_PRINT_SIMPLE;
+			break;
 		case OPT_PRINT_DETAIL:
 			printtype = IGT_PRINT_DETAIL;
 			break;
-- 
2.25.1

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Re: [Intel-gfx] [RFC 2/3] lsgpu: User friendly device listing

[Zbigniew Kempczyński]

On Mon, Nov 09, 2020 at 10:48:10AM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> New default user frindly device listing mode which replaces:
> 
> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
>     subsystem       : drm
>     drm card        : /dev/dri/card0
>     parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> 
> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
>    subsystem       : drm
>    drm render      : /dev/dri/renderD128
>    parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> 
> sys:/sys/devices/pci0000:00/0000:00:02.0
>    subsystem       : pci
>     drm card        : /dev/dri/card0
>     drm render      : /dev/dri/renderD128
>     vendor          : 8086
>     device          : 193B
> 
> With:
> 
> card0                   8086:193B    drm:/dev/dri/card0
> └─renderD128                         drm:/dev/dri/renderD128
> 
> Advantages are more compact, more readable, one entry per GPU.
> 
> Legacy format can be chose using the -s / --print-simple command line
> switches.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Cc: Petri Latvala <petri.latvala@intel.com>
> Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> ---
>  tools/lsgpu.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/lsgpu.c b/tools/lsgpu.c
> index 2541d1c24e66..3b234b73361a 100644
> --- a/tools/lsgpu.c
> +++ b/tools/lsgpu.c
> @@ -70,6 +70,7 @@
>   */
>  
>  enum {
> +	OPT_PRINT_SIMPLE   = 's',
>  	OPT_PRINT_DETAIL   = 'p',
>  	OPT_LIST_VENDORS   = 'v',
>  	OPT_LIST_FILTERS   = 'l',
> @@ -85,6 +86,7 @@ static char *igt_device;
>  static const char *usage_str =
>  	"usage: lsgpu [options]\n\n"
>  	"Options:\n"
> +	"  -s, --print-simple          Print simple (legacy) device details\n"
>  	"  -p, --print-details         Print devices with details\n"
>  	"  -v, --list-vendors          List recognized vendors\n"
>  	"  -l, --list-filter-types     List registered device filters types\n"
> @@ -151,6 +153,7 @@ static char *get_device_from_rc(void)
>  int main(int argc, char *argv[])
>  {
>  	static struct option long_options[] = {
> +		{"print-simple",      no_argument,       NULL, OPT_PRINT_SIMPLE},
>  		{"print-detail",      no_argument,       NULL, OPT_PRINT_DETAIL},
>  		{"list-vendors",      no_argument,       NULL, OPT_LIST_VENDORS},
>  		{"list-filter-types", no_argument,       NULL, OPT_LIST_FILTERS},
> @@ -160,12 +163,15 @@ int main(int argc, char *argv[])
>  	};
>  	int c, index = 0;
>  	char *env_device = NULL, *opt_device = NULL, *rc_device = NULL;
> -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
> +	enum igt_devices_print_type printtype = IGT_PRINT_USER;
>  
> -	while ((c = getopt_long(argc, argv, "pvld:h",
> +	while ((c = getopt_long(argc, argv, "spvld:h",
>  				long_options, &index)) != -1) {
>  		switch(c) {
>  
> +		case OPT_PRINT_SIMPLE:
> +			printtype = IGT_PRINT_SIMPLE;
> +			break;
>  		case OPT_PRINT_DETAIL:
>  			printtype = IGT_PRINT_DETAIL;
>  			break;
> -- 
> 2.25.1
> 

Looks ok:

Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>

--
Zbigniew
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Re: [Intel-gfx] [RFC 2/3] lsgpu: User friendly device listing

[Tvrtko Ursulin]

On 10/11/2020 11:03, Zbigniew Kempczyński wrote:
> On Mon, Nov 09, 2020 at 10:48:10AM +0000, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> New default user frindly device listing mode which replaces:
>>
>> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
>>      subsystem       : drm
>>      drm card        : /dev/dri/card0
>>      parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
>>
>> sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
>>     subsystem       : drm
>>     drm render      : /dev/dri/renderD128
>>     parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
>>
>> sys:/sys/devices/pci0000:00/0000:00:02.0
>>     subsystem       : pci
>>      drm card        : /dev/dri/card0
>>      drm render      : /dev/dri/renderD128
>>      vendor          : 8086
>>      device          : 193B
>>
>> With:
>>
>> card0                   8086:193B    drm:/dev/dri/card0
>> └─renderD128                         drm:/dev/dri/renderD128
>>
>> Advantages are more compact, more readable, one entry per GPU.
>>
>> Legacy format can be chose using the -s / --print-simple command line
>> switches.
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>> Cc: Petri Latvala <petri.latvala@intel.com>
>> Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
>> ---
>>   tools/lsgpu.c | 10 ++++++++--
>>   1 file changed, 8 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/lsgpu.c b/tools/lsgpu.c
>> index 2541d1c24e66..3b234b73361a 100644
>> --- a/tools/lsgpu.c
>> +++ b/tools/lsgpu.c
>> @@ -70,6 +70,7 @@
>>    */
>>   
>>   enum {
>> +	OPT_PRINT_SIMPLE   = 's',
>>   	OPT_PRINT_DETAIL   = 'p',
>>   	OPT_LIST_VENDORS   = 'v',
>>   	OPT_LIST_FILTERS   = 'l',
>> @@ -85,6 +86,7 @@ static char *igt_device;
>>   static const char *usage_str =
>>   	"usage: lsgpu [options]\n\n"
>>   	"Options:\n"
>> +	"  -s, --print-simple          Print simple (legacy) device details\n"
>>   	"  -p, --print-details         Print devices with details\n"
>>   	"  -v, --list-vendors          List recognized vendors\n"
>>   	"  -l, --list-filter-types     List registered device filters types\n"
>> @@ -151,6 +153,7 @@ static char *get_device_from_rc(void)
>>   int main(int argc, char *argv[])
>>   {
>>   	static struct option long_options[] = {
>> +		{"print-simple",      no_argument,       NULL, OPT_PRINT_SIMPLE},
>>   		{"print-detail",      no_argument,       NULL, OPT_PRINT_DETAIL},
>>   		{"list-vendors",      no_argument,       NULL, OPT_LIST_VENDORS},
>>   		{"list-filter-types", no_argument,       NULL, OPT_LIST_FILTERS},
>> @@ -160,12 +163,15 @@ int main(int argc, char *argv[])
>>   	};
>>   	int c, index = 0;
>>   	char *env_device = NULL, *opt_device = NULL, *rc_device = NULL;
>> -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
>> +	enum igt_devices_print_type printtype = IGT_PRINT_USER;
>>   
>> -	while ((c = getopt_long(argc, argv, "pvld:h",
>> +	while ((c = getopt_long(argc, argv, "spvld:h",
>>   				long_options, &index)) != -1) {
>>   		switch(c) {
>>   
>> +		case OPT_PRINT_SIMPLE:
>> +			printtype = IGT_PRINT_SIMPLE;
>> +			break;
>>   		case OPT_PRINT_DETAIL:
>>   			printtype = IGT_PRINT_DETAIL;
>>   			break;
>> -- 
>> 2.25.1
>>
> 
> Looks ok:
> 
> Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>

Thanks.

Any concerns about potential existence of tools which parse lsgpu output 
and may depend on the default format?

Regards,

Tvrtko
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Re: [Intel-gfx] [RFC 2/3] lsgpu: User friendly device listing

[Zbigniew Kempczyński]

On Tue, Nov 10, 2020 at 11:20:46AM +0000, Tvrtko Ursulin wrote:
> 
> On 10/11/2020 11:03, Zbigniew Kempczyński wrote:
> > On Mon, Nov 09, 2020 at 10:48:10AM +0000, Tvrtko Ursulin wrote:
> > > From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> > > 
> > > New default user frindly device listing mode which replaces:
> > > 
> > > sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
> > >      subsystem       : drm
> > >      drm card        : /dev/dri/card0
> > >      parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> > > 
> > > sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
> > >     subsystem       : drm
> > >     drm render      : /dev/dri/renderD128
> > >     parent          : sys:/sys/devices/pci0000:00/0000:00:02.0
> > > 
> > > sys:/sys/devices/pci0000:00/0000:00:02.0
> > >     subsystem       : pci
> > >      drm card        : /dev/dri/card0
> > >      drm render      : /dev/dri/renderD128
> > >      vendor          : 8086
> > >      device          : 193B
> > > 
> > > With:
> > > 
> > > card0                   8086:193B    drm:/dev/dri/card0
> > > └─renderD128                         drm:/dev/dri/renderD128
> > > 
> > > Advantages are more compact, more readable, one entry per GPU.
> > > 
> > > Legacy format can be chose using the -s / --print-simple command line
> > > switches.
> > > 
> > > Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> > > Cc: Petri Latvala <petri.latvala@intel.com>
> > > Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> > > ---
> > >   tools/lsgpu.c | 10 ++++++++--
> > >   1 file changed, 8 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/tools/lsgpu.c b/tools/lsgpu.c
> > > index 2541d1c24e66..3b234b73361a 100644
> > > --- a/tools/lsgpu.c
> > > +++ b/tools/lsgpu.c
> > > @@ -70,6 +70,7 @@
> > >    */
> > >   enum {
> > > +	OPT_PRINT_SIMPLE   = 's',
> > >   	OPT_PRINT_DETAIL   = 'p',
> > >   	OPT_LIST_VENDORS   = 'v',
> > >   	OPT_LIST_FILTERS   = 'l',
> > > @@ -85,6 +86,7 @@ static char *igt_device;
> > >   static const char *usage_str =
> > >   	"usage: lsgpu [options]\n\n"
> > >   	"Options:\n"
> > > +	"  -s, --print-simple          Print simple (legacy) device details\n"
> > >   	"  -p, --print-details         Print devices with details\n"
> > >   	"  -v, --list-vendors          List recognized vendors\n"
> > >   	"  -l, --list-filter-types     List registered device filters types\n"
> > > @@ -151,6 +153,7 @@ static char *get_device_from_rc(void)
> > >   int main(int argc, char *argv[])
> > >   {
> > >   	static struct option long_options[] = {
> > > +		{"print-simple",      no_argument,       NULL, OPT_PRINT_SIMPLE},
> > >   		{"print-detail",      no_argument,       NULL, OPT_PRINT_DETAIL},
> > >   		{"list-vendors",      no_argument,       NULL, OPT_LIST_VENDORS},
> > >   		{"list-filter-types", no_argument,       NULL, OPT_LIST_FILTERS},
> > > @@ -160,12 +163,15 @@ int main(int argc, char *argv[])
> > >   	};
> > >   	int c, index = 0;
> > >   	char *env_device = NULL, *opt_device = NULL, *rc_device = NULL;
> > > -	enum igt_devices_print_type printtype = IGT_PRINT_SIMPLE;
> > > +	enum igt_devices_print_type printtype = IGT_PRINT_USER;
> > > -	while ((c = getopt_long(argc, argv, "pvld:h",
> > > +	while ((c = getopt_long(argc, argv, "spvld:h",
> > >   				long_options, &index)) != -1) {
> > >   		switch(c) {
> > > +		case OPT_PRINT_SIMPLE:
> > > +			printtype = IGT_PRINT_SIMPLE;
> > > +			break;
> > >   		case OPT_PRINT_DETAIL:
> > >   			printtype = IGT_PRINT_DETAIL;
> > >   			break;
> > > -- 
> > > 2.25.1
> > > 
> > 
> > Looks ok:
> > 
> > Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> 
> Thanks.
> 
> Any concerns about potential existence of tools which parse lsgpu output and
> may depend on the default format?
> 
> Regards,
> 
> Tvrtko

At the moment I don't know about any tool which parses lsgpu output. But if 
we provide switches which print specific user/simple/detail format we 
always can enforce tool to output in format we expect.
 
IMO more important are "stable" filters, I mean they should expect same 
syntax and provide same semantic.

--
Zbigniew

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[Intel-gfx] [RFC 3/3] lsgpu: Add filter type print-out selection

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

In the previous patch we switched the lsgpu output to a short and user
friendly format but some users will need a shorthand for getting other
types of device selection filters than the defaut drm.

Add some command line switches to enable this:

$ lsgpu
card0                   8086:193B    drm:/dev/dri/card0
└─renderD128                         drm:/dev/dri/renderD128

$ lsgpu --sysfs
card0                   8086:193B    sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
└─renderD128                         sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128

$ lsgpu --pci
card0                   8086:193B    pci:/sys/devices/pci0000:00/0000:00:02.0
└─renderD128

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
---
 lib/igt_device_scan.c | 69 ++++++++++++++++++++++++++++++++-----------
 lib/igt_device_scan.h | 15 ++++++++--
 tools/intel_gpu_top.c |  6 +++-
 tools/lsgpu.c         | 32 +++++++++++++++-----
 4 files changed, 95 insertions(+), 27 deletions(-)

diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
index e66ccdc25aeb..54b565b68524 100644
--- a/lib/igt_device_scan.c
+++ b/lib/igt_device_scan.c
@@ -748,7 +748,9 @@ static bool __check_empty(struct igt_list_head *view)
 	return false;
 }
 
-static void igt_devs_print_simple(struct igt_list_head *view)
+static void
+igt_devs_print_simple(struct igt_list_head *view,
+		      const struct igt_devices_print_format *fmt)
 {
 	struct igt_device *dev;
 
@@ -792,7 +794,36 @@ __find_pci(struct igt_list_head *view, const char *drm)
 	return NULL;
 }
 
-static void igt_devs_print_user(struct igt_list_head *view)
+static void __print_filter(char *buf, int len,
+			   const struct igt_devices_print_format *fmt,
+			   struct igt_device *dev,
+			   bool render)
+{
+	int ret;
+
+	switch (fmt->option) {
+	case IGT_PRINT_DRM:
+		ret = snprintf(buf, len, "drm:%s",
+			       render ? dev->drm_render : dev->drm_card);
+		igt_assert(ret < len);
+		break;
+	case IGT_PRINT_SYSFS:
+		ret = snprintf(buf, len, "sys:%s", dev->syspath);
+		igt_assert(ret < len);
+		break;
+	case IGT_PRINT_PCI:
+		if (!render) {
+			ret = snprintf(buf, len, "pci:%s",
+				       dev->parent->syspath);
+			igt_assert(ret < len);
+		}
+		break;
+	};
+}
+
+static void
+igt_devs_print_user(struct igt_list_head *view,
+		    const struct igt_devices_print_format *fmt)
 {
 	struct igt_device *dev;
 
@@ -805,7 +836,6 @@ static void igt_devs_print_user(struct igt_list_head *view)
 		struct igt_device *dev2;
 		char filter[64];
 		char *drm_name;
-		int ret;
 
 		if (!is_drm_subsystem(dev))
 			continue;
@@ -816,8 +846,7 @@ static void igt_devs_print_user(struct igt_list_head *view)
 		if (!drm_name || !*++drm_name)
 			continue;
 
-		ret = snprintf(filter, sizeof(filter), "drm:%s", dev->drm_card);
-		igt_assert(ret < sizeof(filter));
+		__print_filter(filter, sizeof(filter), fmt, dev, false);
 
 		pci_dev = __find_pci(view, dev->drm_card);
 		if (pci_dev)
@@ -848,13 +877,15 @@ static void igt_devs_print_user(struct igt_list_head *view)
 			if (!drm_name || !*++drm_name)
 				continue;
 
-			ret = snprintf(filter, sizeof(filter), "drm:%s",
-				       dev2->drm_render);
-			igt_assert(ret < sizeof(filter));
-
-			printf("%s%-22s             %s\n",
-			       (++i == num_children) ? "└─" : "├─",
-			       drm_name, filter);
+			printf("%s%-22s",
+				(++i == num_children) ? "└─" : "├─", drm_name);
+			if (fmt->option != IGT_PRINT_PCI) {
+				__print_filter(filter, sizeof(filter), fmt,
+					       dev2, true);
+				printf("             %s\n", filter);
+			} else {
+				printf("\n");
+			}
 		}
 	}
 }
@@ -879,7 +910,10 @@ static void print_ht(GHashTable *ht)
 	g_list_free(keys);
 }
 
-static void igt_devs_print_detail(struct igt_list_head *view)
+static void
+igt_devs_print_detail(struct igt_list_head *view,
+		      const struct igt_devices_print_format *fmt)
+
 {
 	struct igt_device *dev;
 
@@ -903,7 +937,8 @@ static void igt_devs_print_detail(struct igt_list_head *view)
 }
 
 static struct print_func {
-	void (*prn)(struct igt_list_head *view);
+	void (*prn)(struct igt_list_head *view,
+		    const struct igt_devices_print_format *);
 } print_functions[] = {
 	[IGT_PRINT_SIMPLE] = { .prn = igt_devs_print_simple },
 	[IGT_PRINT_DETAIL] = { .prn = igt_devs_print_detail },
@@ -912,15 +947,15 @@ static struct print_func {
 
 /**
  * igt_devices_print
- * @printtype: IGT_PRINT_SIMPLE or IGT_PRINT_DETAIL
+ * @fmt: Print format as specified by struct igt_devices_print_format
  *
  * Function can be used by external tool to print device array in simple
  * or detailed form. This function is added here to avoid exposing
  * internal implementation data structures.
  */
-void igt_devices_print(enum igt_devices_print_type printtype)
+void igt_devices_print(const struct igt_devices_print_format *fmt)
 {
-	print_functions[printtype].prn(&igt_devs.filtered);
+	print_functions[fmt->type].prn(&igt_devs.filtered, fmt);
 }
 
 /**
diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
index 9822c22cb69c..bb4be72345fb 100644
--- a/lib/igt_device_scan.h
+++ b/lib/igt_device_scan.h
@@ -35,11 +35,22 @@
 #include <unistd.h>
 
 enum igt_devices_print_type {
-	IGT_PRINT_SIMPLE,
+	IGT_PRINT_SIMPLE = 0,
 	IGT_PRINT_DETAIL,
 	IGT_PRINT_USER, /* End user friendly. */
 };
 
+enum igt_devices_print_option {
+	IGT_PRINT_DRM = 0,
+	IGT_PRINT_SYSFS,
+	IGT_PRINT_PCI,
+};
+
+struct igt_devices_print_format {
+	enum igt_devices_print_type   type;
+	enum igt_devices_print_option option;
+};
+
 #define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
 #define PCI_SLOT_NAME_SIZE 12
 struct igt_device_card {
@@ -51,7 +62,7 @@ struct igt_device_card {
 
 void igt_devices_scan(bool force);
 
-void igt_devices_print(enum igt_devices_print_type printtype);
+void igt_devices_print(const struct igt_devices_print_format *fmt);
 void igt_devices_print_vendors(void);
 void igt_device_print_filter_types(void);
 
diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index 5230472d2af4..07f88d555dc8 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -1387,7 +1387,11 @@ int main(int argc, char **argv)
 	igt_devices_scan(false);
 
 	if (list_device) {
-		igt_devices_print(IGT_PRINT_USER);
+		struct igt_devices_print_format fmt = {
+			.type = IGT_PRINT_USER
+		};
+
+		igt_devices_print(&fmt);
 		goto exit;
 	}
 
diff --git a/tools/lsgpu.c b/tools/lsgpu.c
index 3b234b73361a..169ab0c29e50 100644
--- a/tools/lsgpu.c
+++ b/tools/lsgpu.c
@@ -91,7 +91,11 @@ static const char *usage_str =
 	"  -v, --list-vendors          List recognized vendors\n"
 	"  -l, --list-filter-types     List registered device filters types\n"
 	"  -d, --device filter         Device filter, can be given multiple times\n"
-	"  -h, --help                  Show this help message and exit\n";
+	"  -h, --help                  Show this help message and exit\n"
+	"\nOptions valid for default print out mode only:\n"
+	"      --drm                   Show DRM filters (default) for each device\n"
+	"      --sysfs                 Show sysfs filters for each device\n"
+	"      --pci                   Show PCI filters for each device\n";
 
 static void test_device_open(struct igt_device_card *card)
 {
@@ -153,6 +157,9 @@ static char *get_device_from_rc(void)
 int main(int argc, char *argv[])
 {
 	static struct option long_options[] = {
+		{"drm",               no_argument,       NULL, 0},
+		{"sysfs",             no_argument,       NULL, 1},
+		{"pci",               no_argument,       NULL, 2},
 		{"print-simple",      no_argument,       NULL, OPT_PRINT_SIMPLE},
 		{"print-detail",      no_argument,       NULL, OPT_PRINT_DETAIL},
 		{"list-vendors",      no_argument,       NULL, OPT_LIST_VENDORS},
@@ -163,17 +170,19 @@ int main(int argc, char *argv[])
 	};
 	int c, index = 0;
 	char *env_device = NULL, *opt_device = NULL, *rc_device = NULL;
-	enum igt_devices_print_type printtype = IGT_PRINT_USER;
+	struct igt_devices_print_format fmt = {
+			.type = IGT_PRINT_USER,
+	};
 
 	while ((c = getopt_long(argc, argv, "spvld:h",
 				long_options, &index)) != -1) {
 		switch(c) {
 
 		case OPT_PRINT_SIMPLE:
-			printtype = IGT_PRINT_SIMPLE;
+			fmt.type = IGT_PRINT_SIMPLE;
 			break;
 		case OPT_PRINT_DETAIL:
-			printtype = IGT_PRINT_DETAIL;
+			fmt.type = IGT_PRINT_DETAIL;
 			break;
 		case OPT_LIST_VENDORS:
 			g_show_vendors = true;
@@ -187,6 +196,15 @@ int main(int argc, char *argv[])
 		case OPT_HELP:
 			g_help = true;
 			break;
+		case 0:
+			fmt.option = IGT_PRINT_DRM;
+			break;
+		case 1:
+			fmt.option = IGT_PRINT_SYSFS;
+			break;
+		case 2:
+			fmt.option = IGT_PRINT_PCI;
+			break;
 		}
 	}
 
@@ -239,14 +257,14 @@ int main(int argc, char *argv[])
 		printf("Device detail:\n");
 		print_card(&card);
 		test_device_open(&card);
-		if (printtype == IGT_PRINT_DETAIL) {
+		if (fmt.type == IGT_PRINT_DETAIL) {
 			printf("\n");
-			igt_devices_print(printtype);
+			igt_devices_print(&fmt);
 		}
 		printf("-------------------------------------------\n");
 
 	} else {
-		igt_devices_print(printtype);
+		igt_devices_print(&fmt);
 	}
 
 	free(rc_device);
-- 
2.25.1

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Re: [Intel-gfx] [RFC 3/3] lsgpu: Add filter type print-out selection

[Zbigniew Kempczyński]

On Mon, Nov 09, 2020 at 10:48:11AM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> In the previous patch we switched the lsgpu output to a short and user
> friendly format but some users will need a shorthand for getting other
> types of device selection filters than the defaut drm.
> 
> Add some command line switches to enable this:
> 
> $ lsgpu
> card0                   8086:193B    drm:/dev/dri/card0
> └─renderD128                         drm:/dev/dri/renderD128
> 
> $ lsgpu --sysfs
> card0                   8086:193B    sys:/sys/devices/pci0000:00/0000:00:02.0/drm/card0
> └─renderD128                         sys:/sys/devices/pci0000:00/0000:00:02.0/drm/renderD128
> 
> $ lsgpu --pci
> card0                   8086:193B    pci:/sys/devices/pci0000:00/0000:00:02.0
> └─renderD128
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Suggested-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> Cc: Petri Latvala <petri.latvala@intel.com>
> ---
>  lib/igt_device_scan.c | 69 ++++++++++++++++++++++++++++++++-----------
>  lib/igt_device_scan.h | 15 ++++++++--
>  tools/intel_gpu_top.c |  6 +++-
>  tools/lsgpu.c         | 32 +++++++++++++++-----
>  4 files changed, 95 insertions(+), 27 deletions(-)
> 
> diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
> index e66ccdc25aeb..54b565b68524 100644
> --- a/lib/igt_device_scan.c
> +++ b/lib/igt_device_scan.c
> @@ -748,7 +748,9 @@ static bool __check_empty(struct igt_list_head *view)
>  	return false;
>  }
>  
> -static void igt_devs_print_simple(struct igt_list_head *view)
> +static void
> +igt_devs_print_simple(struct igt_list_head *view,
> +		      const struct igt_devices_print_format *fmt)
>  {
>  	struct igt_device *dev;
>  
> @@ -792,7 +794,36 @@ __find_pci(struct igt_list_head *view, const char *drm)
>  	return NULL;
>  }
>  
> -static void igt_devs_print_user(struct igt_list_head *view)
> +static void __print_filter(char *buf, int len,
> +			   const struct igt_devices_print_format *fmt,
> +			   struct igt_device *dev,
> +			   bool render)
> +{
> +	int ret;
> +
> +	switch (fmt->option) {
> +	case IGT_PRINT_DRM:
> +		ret = snprintf(buf, len, "drm:%s",
> +			       render ? dev->drm_render : dev->drm_card);
> +		igt_assert(ret < len);
> +		break;
> +	case IGT_PRINT_SYSFS:
> +		ret = snprintf(buf, len, "sys:%s", dev->syspath);
> +		igt_assert(ret < len);
> +		break;
> +	case IGT_PRINT_PCI:
> +		if (!render) {
> +			ret = snprintf(buf, len, "pci:%s",
> +				       dev->parent->syspath);
> +			igt_assert(ret < len);
> +		}
> +		break;
> +	};
> +}
> +
> +static void
> +igt_devs_print_user(struct igt_list_head *view,
> +		    const struct igt_devices_print_format *fmt)
>  {
>  	struct igt_device *dev;
>  
> @@ -805,7 +836,6 @@ static void igt_devs_print_user(struct igt_list_head *view)
>  		struct igt_device *dev2;
>  		char filter[64];

Too small, for two machines I got (printed returned size) :

(lsgpu:15601) igt_device_scan-INFO: path: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0, ret: 89, len: 64
(lsgpu:15601) igt_device_scan-CRITICAL: Test assertion failure function __print_filter, file ../lib/igt_device_scan.c:815:
(lsgpu:15601) igt_device_scan-CRITICAL: Failed assertion: ret < len

I would extend that to at least 128 or 256 (in this case we can completely
forget about the path length).

--
Zbigniew

>  		char *drm_name;
> -		int ret;
>  
>  		if (!is_drm_subsystem(dev))
>  			continue;
> @@ -816,8 +846,7 @@ static void igt_devs_print_user(struct igt_list_head *view)
>  		if (!drm_name || !*++drm_name)
>  			continue;
>  
> -		ret = snprintf(filter, sizeof(filter), "drm:%s", dev->drm_card);
> -		igt_assert(ret < sizeof(filter));
> +		__print_filter(filter, sizeof(filter), fmt, dev, false);
>  
>  		pci_dev = __find_pci(view, dev->drm_card);
>  		if (pci_dev)
> @@ -848,13 +877,15 @@ static void igt_devs_print_user(struct igt_list_head *view)
>  			if (!drm_name || !*++drm_name)
>  				continue;
>  
> -			ret = snprintf(filter, sizeof(filter), "drm:%s",
> -				       dev2->drm_render);
> -			igt_assert(ret < sizeof(filter));
> -
> -			printf("%s%-22s             %s\n",
> -			       (++i == num_children) ? "└─" : "├─",
> -			       drm_name, filter);
> +			printf("%s%-22s",
> +				(++i == num_children) ? "└─" : "├─", drm_name);
> +			if (fmt->option != IGT_PRINT_PCI) {
> +				__print_filter(filter, sizeof(filter), fmt,
> +					       dev2, true);
> +				printf("             %s\n", filter);
> +			} else {
> +				printf("\n");
> +			}
>  		}
>  	}
>  }
> @@ -879,7 +910,10 @@ static void print_ht(GHashTable *ht)
>  	g_list_free(keys);
>  }
>  
> -static void igt_devs_print_detail(struct igt_list_head *view)
> +static void
> +igt_devs_print_detail(struct igt_list_head *view,
> +		      const struct igt_devices_print_format *fmt)
> +
>  {
>  	struct igt_device *dev;
>  
> @@ -903,7 +937,8 @@ static void igt_devs_print_detail(struct igt_list_head *view)
>  }
>  
>  static struct print_func {
> -	void (*prn)(struct igt_list_head *view);
> +	void (*prn)(struct igt_list_head *view,
> +		    const struct igt_devices_print_format *);
>  } print_functions[] = {
>  	[IGT_PRINT_SIMPLE] = { .prn = igt_devs_print_simple },
>  	[IGT_PRINT_DETAIL] = { .prn = igt_devs_print_detail },
> @@ -912,15 +947,15 @@ static struct print_func {
>  
>  /**
>   * igt_devices_print
> - * @printtype: IGT_PRINT_SIMPLE or IGT_PRINT_DETAIL
> + * @fmt: Print format as specified by struct igt_devices_print_format
>   *
>   * Function can be used by external tool to print device array in simple
>   * or detailed form. This function is added here to avoid exposing
>   * internal implementation data structures.
>   */
> -void igt_devices_print(enum igt_devices_print_type printtype)
> +void igt_devices_print(const struct igt_devices_print_format *fmt)
>  {
> -	print_functions[printtype].prn(&igt_devs.filtered);
> +	print_functions[fmt->type].prn(&igt_devs.filtered, fmt);
>  }
>  
>  /**
> diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
> index 9822c22cb69c..bb4be72345fb 100644
> --- a/lib/igt_device_scan.h
> +++ b/lib/igt_device_scan.h
> @@ -35,11 +35,22 @@
>  #include <unistd.h>
>  
>  enum igt_devices_print_type {
> -	IGT_PRINT_SIMPLE,
> +	IGT_PRINT_SIMPLE = 0,
>  	IGT_PRINT_DETAIL,
>  	IGT_PRINT_USER, /* End user friendly. */
>  };
>  
> +enum igt_devices_print_option {
> +	IGT_PRINT_DRM = 0,
> +	IGT_PRINT_SYSFS,
> +	IGT_PRINT_PCI,
> +};
> +
> +struct igt_devices_print_format {
> +	enum igt_devices_print_type   type;
> +	enum igt_devices_print_option option;
> +};
> +
>  #define INTEGRATED_I915_GPU_PCI_ID "0000:00:02.0"
>  #define PCI_SLOT_NAME_SIZE 12
>  struct igt_device_card {
> @@ -51,7 +62,7 @@ struct igt_device_card {
>  
>  void igt_devices_scan(bool force);
>  
> -void igt_devices_print(enum igt_devices_print_type printtype);
> +void igt_devices_print(const struct igt_devices_print_format *fmt);
>  void igt_devices_print_vendors(void);
>  void igt_device_print_filter_types(void);
>  
> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
> index 5230472d2af4..07f88d555dc8 100644
> --- a/tools/intel_gpu_top.c
> +++ b/tools/intel_gpu_top.c
> @@ -1387,7 +1387,11 @@ int main(int argc, char **argv)
>  	igt_devices_scan(false);
>  
>  	if (list_device) {
> -		igt_devices_print(IGT_PRINT_USER);
> +		struct igt_devices_print_format fmt = {
> +			.type = IGT_PRINT_USER
> +		};
> +
> +		igt_devices_print(&fmt);
>  		goto exit;
>  	}
>  
> diff --git a/tools/lsgpu.c b/tools/lsgpu.c
> index 3b234b73361a..169ab0c29e50 100644
> --- a/tools/lsgpu.c
> +++ b/tools/lsgpu.c
> @@ -91,7 +91,11 @@ static const char *usage_str =
>  	"  -v, --list-vendors          List recognized vendors\n"
>  	"  -l, --list-filter-types     List registered device filters types\n"
>  	"  -d, --device filter         Device filter, can be given multiple times\n"
> -	"  -h, --help                  Show this help message and exit\n";
> +	"  -h, --help                  Show this help message and exit\n"
> +	"\nOptions valid for default print out mode only:\n"
> +	"      --drm                   Show DRM filters (default) for each device\n"
> +	"      --sysfs                 Show sysfs filters for each device\n"
> +	"      --pci                   Show PCI filters for each device\n";
>  
>  static void test_device_open(struct igt_device_card *card)
>  {
> @@ -153,6 +157,9 @@ static char *get_device_from_rc(void)
>  int main(int argc, char *argv[])
>  {
>  	static struct option long_options[] = {
> +		{"drm",               no_argument,       NULL, 0},
> +		{"sysfs",             no_argument,       NULL, 1},
> +		{"pci",               no_argument,       NULL, 2},
>  		{"print-simple",      no_argument,       NULL, OPT_PRINT_SIMPLE},
>  		{"print-detail",      no_argument,       NULL, OPT_PRINT_DETAIL},
>  		{"list-vendors",      no_argument,       NULL, OPT_LIST_VENDORS},
> @@ -163,17 +170,19 @@ int main(int argc, char *argv[])
>  	};
>  	int c, index = 0;
>  	char *env_device = NULL, *opt_device = NULL, *rc_device = NULL;
> -	enum igt_devices_print_type printtype = IGT_PRINT_USER;
> +	struct igt_devices_print_format fmt = {
> +			.type = IGT_PRINT_USER,
> +	};
>  
>  	while ((c = getopt_long(argc, argv, "spvld:h",
>  				long_options, &index)) != -1) {
>  		switch(c) {
>  
>  		case OPT_PRINT_SIMPLE:
> -			printtype = IGT_PRINT_SIMPLE;
> +			fmt.type = IGT_PRINT_SIMPLE;
>  			break;
>  		case OPT_PRINT_DETAIL:
> -			printtype = IGT_PRINT_DETAIL;
> +			fmt.type = IGT_PRINT_DETAIL;
>  			break;
>  		case OPT_LIST_VENDORS:
>  			g_show_vendors = true;
> @@ -187,6 +196,15 @@ int main(int argc, char *argv[])
>  		case OPT_HELP:
>  			g_help = true;
>  			break;
> +		case 0:
> +			fmt.option = IGT_PRINT_DRM;
> +			break;
> +		case 1:
> +			fmt.option = IGT_PRINT_SYSFS;
> +			break;
> +		case 2:
> +			fmt.option = IGT_PRINT_PCI;
> +			break;
>  		}
>  	}
>  
> @@ -239,14 +257,14 @@ int main(int argc, char *argv[])
>  		printf("Device detail:\n");
>  		print_card(&card);
>  		test_device_open(&card);
> -		if (printtype == IGT_PRINT_DETAIL) {
> +		if (fmt.type == IGT_PRINT_DETAIL) {
>  			printf("\n");
> -			igt_devices_print(printtype);
> +			igt_devices_print(&fmt);
>  		}
>  		printf("-------------------------------------------\n");
>  
>  	} else {
> -		igt_devices_print(printtype);
> +		igt_devices_print(&fmt);
>  	}
>  
>  	free(rc_device);
> -- 
> 2.25.1
> 
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[Intel-gfx] ✗ Fi.CI.BUILD: failure for User friendly lsgpu default output

[Patchwork]

== Series Details ==

Series: User friendly lsgpu default output
URL   : https://patchwork.freedesktop.org/series/83640/
State : failure

== Summary ==

Applying: intel_gpu_top: User friendly device listing
error: sha1 information is lacking or useless (lib/igt_device_scan.c).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 intel_gpu_top: User friendly device listing
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".


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