<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/gpu/drm/v3d/v3d_debugfs.c, branch v6.7</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>drm/v3d: use new debugfs device-centered functions</title>
<updated>2022-12-22T17:59:23+00:00</updated>
<author>
<name>Maíra Canal</name>
<email>mcanal@igalia.com</email>
</author>
<published>2022-12-19T12:06:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c0dda238e2640eb8897e8ab7cca25b2f1d11ea08'/>
<id>c0dda238e2640eb8897e8ab7cca25b2f1d11ea08</id>
<content type='text'>
Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function, which centers the debugfs files
management on the drm_device instead of drm_minor.

Signed-off-by: Maíra Canal &lt;mcanal@igalia.com&gt;
Reviewed-by: Melissa Wen &lt;mwen@igalia.com&gt;
Acked-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Signed-off-by: Maíra Canal &lt;mairacanal@riseup.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-6-mcanal@igalia.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function, which centers the debugfs files
management on the drm_device instead of drm_minor.

Signed-off-by: Maíra Canal &lt;mcanal@igalia.com&gt;
Reviewed-by: Melissa Wen &lt;mwen@igalia.com&gt;
Acked-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Signed-off-by: Maíra Canal &lt;mairacanal@riseup.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20221219120621.15086-6-mcanal@igalia.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: Get rid of pm code</title>
<updated>2022-06-12T23:10:40+00:00</updated>
<author>
<name>Peter Robinson</name>
<email>pbrobinson@gmail.com</email>
</author>
<published>2022-06-03T09:26:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=90a64adb0876f3b6ec49819df99edffed982e4f2'/>
<id>90a64adb0876f3b6ec49819df99edffed982e4f2</id>
<content type='text'>
Runtime PM doesn't seem to work correctly on this driver. On top of
that, commit 8b6864e3e138 ("drm/v3d/v3d_drv: Remove unused static
variable 'v3d_v3d_pm_ops'") hints that it most likely never did as the
driver's PM ops were not hooked-up.

So, in order to support regular operation with V3D on BCM2711 (Raspberry
Pi 4), get rid of the PM code. PM will be reinstated once we figure out
the underlying issues.

Signed-off-by: Nicolas Saenz Julienne &lt;nsaenzjulienne@suse.de&gt;
Signed-off-by: Peter Robinson &lt;pbrobinson@gmail.com&gt;
Reviewed-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Acked-by: Melissa Wen &lt;mwen@igalia.com&gt;
Signed-off-by: Melissa Wen &lt;melissa.srw@gmail.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220603092610.1909675-3-pbrobinson@gmail.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Runtime PM doesn't seem to work correctly on this driver. On top of
that, commit 8b6864e3e138 ("drm/v3d/v3d_drv: Remove unused static
variable 'v3d_v3d_pm_ops'") hints that it most likely never did as the
driver's PM ops were not hooked-up.

So, in order to support regular operation with V3D on BCM2711 (Raspberry
Pi 4), get rid of the PM code. PM will be reinstated once we figure out
the underlying issues.

Signed-off-by: Nicolas Saenz Julienne &lt;nsaenzjulienne@suse.de&gt;
Signed-off-by: Peter Robinson &lt;pbrobinson@gmail.com&gt;
Reviewed-by: Javier Martinez Canillas &lt;javierm@redhat.com&gt;
Acked-by: Melissa Wen &lt;mwen@igalia.com&gt;
Signed-off-by: Melissa Wen &lt;melissa.srw@gmail.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220603092610.1909675-3-pbrobinson@gmail.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm: Convert open-coded yes/no strings to yesno()</title>
<updated>2022-02-07T21:04:25+00:00</updated>
<author>
<name>Lucas De Marchi</name>
<email>lucas.demarchi@intel.com</email>
</author>
<published>2022-01-26T09:39:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=b8c75bd9746e3f1bdb5a1b6288b50dc2fdfec0ef'/>
<id>b8c75bd9746e3f1bdb5a1b6288b50dc2fdfec0ef</id>
<content type='text'>
linux/string_helpers.h provides a helper to return "yes"/"no" strings.
Replace the open coded versions with str_yes_no(). The places were
identified with the following semantic patch:

	@@
	expression b;
	@@

	- b ? "yes" : "no"
	+ str_yes_no(b)

Then the includes were added, so we include-what-we-use, and parenthesis
adjusted in drivers/gpu/drm/v3d/v3d_debugfs.c. After the conversion we
still see the same binary sizes:

   text    data     bss     dec     hex filename
  51149    3295     212   54656    d580 virtio/virtio-gpu.ko.old
  51149    3295     212   54656    d580 virtio/virtio-gpu.ko
1441491   60340     800 1502631  16eda7 radeon/radeon.ko.old
1441491   60340     800 1502631  16eda7 radeon/radeon.ko
6125369  328538   34000 6487907  62ff63 amd/amdgpu/amdgpu.ko.old
6125369  328538   34000 6487907  62ff63 amd/amdgpu/amdgpu.ko
 411986   10490    6176  428652   68a6c drm.ko.old
 411986   10490    6176  428652   68a6c drm.ko
  98129    1636     264  100029   186bd dp/drm_dp_helper.ko.old
  98129    1636     264  100029   186bd dp/drm_dp_helper.ko
1973432  109640    2352 2085424  1fd230 nouveau/nouveau.ko.old
1973432  109640    2352 2085424  1fd230 nouveau/nouveau.ko

Signed-off-by: Lucas De Marchi &lt;lucas.demarchi@intel.com&gt;
Reviewed-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220126093951.1470898-10-lucas.demarchi@intel.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
linux/string_helpers.h provides a helper to return "yes"/"no" strings.
Replace the open coded versions with str_yes_no(). The places were
identified with the following semantic patch:

	@@
	expression b;
	@@

	- b ? "yes" : "no"
	+ str_yes_no(b)

Then the includes were added, so we include-what-we-use, and parenthesis
adjusted in drivers/gpu/drm/v3d/v3d_debugfs.c. After the conversion we
still see the same binary sizes:

   text    data     bss     dec     hex filename
  51149    3295     212   54656    d580 virtio/virtio-gpu.ko.old
  51149    3295     212   54656    d580 virtio/virtio-gpu.ko
1441491   60340     800 1502631  16eda7 radeon/radeon.ko.old
1441491   60340     800 1502631  16eda7 radeon/radeon.ko
6125369  328538   34000 6487907  62ff63 amd/amdgpu/amdgpu.ko.old
6125369  328538   34000 6487907  62ff63 amd/amdgpu/amdgpu.ko
 411986   10490    6176  428652   68a6c drm.ko.old
 411986   10490    6176  428652   68a6c drm.ko
  98129    1636     264  100029   186bd dp/drm_dp_helper.ko.old
  98129    1636     264  100029   186bd dp/drm_dp_helper.ko
1973432  109640    2352 2085424  1fd230 nouveau/nouveau.ko.old
1973432  109640    2352 2085424  1fd230 nouveau/nouveau.ko

Signed-off-by: Lucas De Marchi &lt;lucas.demarchi@intel.com&gt;
Reviewed-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220126093951.1470898-10-lucas.demarchi@intel.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: Delete v3d_dev-&gt;dev</title>
<updated>2020-04-28T13:15:52+00:00</updated>
<author>
<name>Daniel Vetter</name>
<email>daniel.vetter@ffwll.ch</email>
</author>
<published>2020-04-15T07:39:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=bc662528e29ae751e0d43c18c9e4cd71a20ef0d4'/>
<id>bc662528e29ae751e0d43c18c9e4cd71a20ef0d4</id>
<content type='text'>
We already have it in v3d_dev-&gt;drm.dev with zero additional pointer
chasing. Personally I don't like duplicated pointers like this
because:
- reviewers need to check whether the pointer is for the same or
  different objects if there's multiple
- compilers have an easier time too

But also a bit a bikeshed, so feel free to ignore.

Acked-by: Eric Anholt &lt;eric@anholt.net&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@intel.com&gt;
Cc: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-10-daniel.vetter@ffwll.ch
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We already have it in v3d_dev-&gt;drm.dev with zero additional pointer
chasing. Personally I don't like duplicated pointers like this
because:
- reviewers need to check whether the pointer is for the same or
  different objects if there's multiple
- compilers have an easier time too

But also a bit a bikeshed, so feel free to ignore.

Acked-by: Eric Anholt &lt;eric@anholt.net&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@intel.com&gt;
Cc: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-10-daniel.vetter@ffwll.ch
</pre>
</div>
</content>
</entry>
<entry>
<title>drm: convert .debugfs_init() hook to return void.</title>
<updated>2020-03-18T16:53:28+00:00</updated>
<author>
<name>Wambui Karuga</name>
<email>wambui.karugax@gmail.com</email>
</author>
<published>2020-03-10T13:31:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7ce84471e3c72e23020b046714358b45a7ffe9ab'/>
<id>7ce84471e3c72e23020b046714358b45a7ffe9ab</id>
<content type='text'>
As a result of commit 987d65d01356 (drm: debugfs: make
drm_debugfs_create_files() never fail) and changes to various debugfs
functions in drm/core and across various drivers, there is no need for
the drm_driver.debugfs_init() hook to have a return value. Therefore,
declare it as void.

This also includes refactoring all users of the .debugfs_init() hook to
return void across the subsystem.

v2: include changes to the hook and drivers that use it in one patch to
prevent driver breakage and enable individual successful compilation of
this change.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga &lt;wambui.karugax@gmail.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-18-wambui.karugax@gmail.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
As a result of commit 987d65d01356 (drm: debugfs: make
drm_debugfs_create_files() never fail) and changes to various debugfs
functions in drm/core and across various drivers, there is no need for
the drm_driver.debugfs_init() hook to have a return value. Therefore,
declare it as void.

This also includes refactoring all users of the .debugfs_init() hook to
return void across the subsystem.

v2: include changes to the hook and drivers that use it in one patch to
prevent driver breakage and enable individual successful compilation of
this change.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga &lt;wambui.karugax@gmail.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-18-wambui.karugax@gmail.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: make v3d_debugfs_init() return 0</title>
<updated>2020-03-18T15:22:12+00:00</updated>
<author>
<name>Wambui Karuga</name>
<email>wambui.karugax@gmail.com</email>
</author>
<published>2020-03-10T13:31:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=19660e8903e6813846ae176e2df570689da3843b'/>
<id>19660e8903e6813846ae176e2df570689da3843b</id>
<content type='text'>
Since commit 987d65d01356 (drm: debugfs: make
drm_debugfs_create_files() never fail), drm_debugfs_create_files() never
fails and should return void. Therefore, remove its use as the
return value of v3d_debugfs_init() and have the function return 0
directly instead.

v2: remove conversion of v3d_debugfs_init() to void to avoid build
breakage and enable individual compilation.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga &lt;wambui.karugax@gmail.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-4-wambui.karugax@gmail.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since commit 987d65d01356 (drm: debugfs: make
drm_debugfs_create_files() never fail), drm_debugfs_create_files() never
fails and should return void. Therefore, remove its use as the
return value of v3d_debugfs_init() and have the function return 0
directly instead.

v2: remove conversion of v3d_debugfs_init() to void to avoid build
breakage and enable individual compilation.

References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html
Signed-off-by: Wambui Karuga &lt;wambui.karugax@gmail.com&gt;
Reviewed-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-4-wambui.karugax@gmail.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: drop use of drmP.h</title>
<updated>2019-07-17T10:52:20+00:00</updated>
<author>
<name>Sam Ravnborg</name>
<email>sam@ravnborg.org</email>
</author>
<published>2019-07-16T06:42:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=220989e7097a5cc083624dc1c925c1c255247574'/>
<id>220989e7097a5cc083624dc1c925c1c255247574</id>
<content type='text'>
Drop use of the deprecated drmP.h header file.
Made v3d_drv.h self-contained with only sufficient
include files.
Fixed fallout in remaining files.

Signed-off-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Acked-by: Emil Velikov &lt;emil.velikov@collabora.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Eric Anholt &lt;eric@anholt.net&gt;
Cc: David Airlie &lt;airlied@linux.ie&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190716064220.18157-3-sam@ravnborg.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Drop use of the deprecated drmP.h header file.
Made v3d_drv.h self-contained with only sufficient
include files.
Fixed fallout in remaining files.

Signed-off-by: Sam Ravnborg &lt;sam@ravnborg.org&gt;
Acked-by: Emil Velikov &lt;emil.velikov@collabora.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Eric Anholt &lt;eric@anholt.net&gt;
Cc: David Airlie &lt;airlied@linux.ie&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190716064220.18157-3-sam@ravnborg.org
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: Dump V3D error debug registers in debugfs, and one at reset.</title>
<updated>2019-05-16T16:24:43+00:00</updated>
<author>
<name>Eric Anholt</name>
<email>eric@anholt.net</email>
</author>
<published>2019-04-19T00:10:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=1ba9d7cbc4530ae35eb1ebbd3c5e59d0c587aefa'/>
<id>1ba9d7cbc4530ae35eb1ebbd3c5e59d0c587aefa</id>
<content type='text'>
Looking at a hang recently, I noticed these registers that might tell
me if something obvious was wrong.  They didn't help in this case, but
keep it around for the future.

Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-3-eric@anholt.net
Reviewed-by: Paul Kocialkowski &lt;paul.kocialkowski@bootlin.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Looking at a hang recently, I noticed these registers that might tell
me if something obvious was wrong.  They didn't help in this case, but
keep it around for the future.

Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-3-eric@anholt.net
Reviewed-by: Paul Kocialkowski &lt;paul.kocialkowski@bootlin.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: Set the correct DMA mask according to the MMU's limits.</title>
<updated>2019-05-16T16:24:34+00:00</updated>
<author>
<name>Eric Anholt</name>
<email>eric@anholt.net</email>
</author>
<published>2019-04-19T00:10:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=091d62831793c3a1be6ae46aa888e7551e0818ad'/>
<id>091d62831793c3a1be6ae46aa888e7551e0818ad</id>
<content type='text'>
On 7278, we've got 40 bits to work with.

Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-2-eric@anholt.net
Reviewed-by: Paul Kocialkowski &lt;paul.kocialkowski@bootlin.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
On 7278, we've got 40 bits to work with.

Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-2-eric@anholt.net
Reviewed-by: Paul Kocialkowski &lt;paul.kocialkowski@bootlin.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/v3d: Fix debugfs reads of MMU regs.</title>
<updated>2019-05-16T16:24:19+00:00</updated>
<author>
<name>Eric Anholt</name>
<email>eric@anholt.net</email>
</author>
<published>2019-04-19T00:10:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=145986ec566b002359243702962b917e7506d44b'/>
<id>145986ec566b002359243702962b917e7506d44b</id>
<content type='text'>
They're in the hub, not the individual cores.

Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-1-eric@anholt.net
Reviewed-by: Paul Kocialkowski &lt;paul.kocialkowski@bootlin.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
They're in the hub, not the individual cores.

Signed-off-by: Eric Anholt &lt;eric@anholt.net&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20190419001014.23579-1-eric@anholt.net
Reviewed-by: Paul Kocialkowski &lt;paul.kocialkowski@bootlin.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
