<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c, branch v5.17</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>drm/amdgpu: use default_groups in kobj_type</title>
<updated>2022-01-11T20:44:26+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2022-01-06T09:56:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7ff61cdcc8609a19f3eddf3fffc09a05ad6d6865'/>
<id>7ff61cdcc8609a19f3eddf3fffc09a05ad6d6865</id>
<content type='text'>
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the amdgpu sysfs code to use default_groups field which has
been the preferred way since aa30f47cf666 ("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.

Cc: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: "Christian König" &lt;christian.koenig@amd.com&gt;
Cc: "Pan, Xinhui" &lt;Xinhui.Pan@amd.com&gt;
Cc: David Airlie &lt;airlied@linux.ie&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Cc: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Cc: John Clements &lt;john.clements@amd.com&gt;
Cc: Felix Kuehling &lt;Felix.Kuehling@amd.com&gt;
Cc: Jonathan Kim &lt;jonathan.kim@amd.com&gt;
Cc: Kevin Wang &lt;kevin1.wang@amd.com&gt;
Cc: shaoyunl &lt;shaoyun.liu@amd.com&gt;
Cc: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the amdgpu sysfs code to use default_groups field which has
been the preferred way since aa30f47cf666 ("kobject: Add support for
default attribute groups to kobj_type") so that we can soon get rid of
the obsolete default_attrs field.

Cc: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: "Christian König" &lt;christian.koenig@amd.com&gt;
Cc: "Pan, Xinhui" &lt;Xinhui.Pan@amd.com&gt;
Cc: David Airlie &lt;airlied@linux.ie&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Cc: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Cc: John Clements &lt;john.clements@amd.com&gt;
Cc: Felix Kuehling &lt;Felix.Kuehling@amd.com&gt;
Cc: Jonathan Kim &lt;jonathan.kim@amd.com&gt;
Cc: Kevin Wang &lt;kevin1.wang@amd.com&gt;
Cc: shaoyunl &lt;shaoyun.liu@amd.com&gt;
Cc: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: check df_funcs and its callback pointers</title>
<updated>2021-12-13T21:33:16+00:00</updated>
<author>
<name>Hawking Zhang</name>
<email>Hawking.Zhang@amd.com</email>
</author>
<published>2021-11-25T07:41:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=cace4bff750ff4f55b16c3aa90aa9376d7488929'/>
<id>cace4bff750ff4f55b16c3aa90aa9376d7488929</id>
<content type='text'>
in case they are not avaiable in early phase

Signed-off-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Reviewed-by: Le Ma &lt;Le.Ma@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
in case they are not avaiable in early phase

Signed-off-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Reviewed-by: Le Ma &lt;Le.Ma@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/amdgpu: fix potential memleak</title>
<updated>2021-11-22T19:45:03+00:00</updated>
<author>
<name>Bernard Zhao</name>
<email>bernard@vivo.com</email>
</author>
<published>2021-11-15T02:58:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7b833d680481f463276aedf500696ea25698deaa'/>
<id>7b833d680481f463276aedf500696ea25698deaa</id>
<content type='text'>
In function amdgpu_get_xgmi_hive, when kobject_init_and_add failed
There is a potential memleak if not call kobject_put.

Reviewed-by: Felix Kuehling &lt;Felix.Kuehling@amd.com&gt;
Signed-off-by: Bernard Zhao &lt;bernard@vivo.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In function amdgpu_get_xgmi_hive, when kobject_init_and_add failed
There is a potential memleak if not call kobject_put.

Reviewed-by: Felix Kuehling &lt;Felix.Kuehling@amd.com&gt;
Signed-off-by: Bernard Zhao &lt;bernard@vivo.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: correct xgmi ras error count reset</title>
<updated>2021-11-05T18:12:21+00:00</updated>
<author>
<name>Tao Zhou</name>
<email>tao.zhou1@amd.com</email>
</author>
<published>2021-11-04T08:26:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7513c9ff44d9dfb035ec35b55f469244304806e6'/>
<id>7513c9ff44d9dfb035ec35b55f469244304806e6</id>
<content type='text'>
The error count reset for xgmi3x16 pcs is missed.

Signed-off-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The error count reset for xgmi3x16 pcs is missed.

Signed-off-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: Add support for RAS XGMI err query</title>
<updated>2021-08-26T17:56:14+00:00</updated>
<author>
<name>John Clements</name>
<email>john.clements@amd.com</email>
</author>
<published>2021-08-26T05:55:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=3c4ff2dcc0dffbfa79f7f55237f502a74ed018b7'/>
<id>3c4ff2dcc0dffbfa79f7f55237f502a74ed018b7</id>
<content type='text'>
Update XGMI RAS to support error query on aldebaran

Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: John Clements &lt;john.clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Update XGMI RAS to support error query on aldebaran

Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: John Clements &lt;john.clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: Update RAS XGMI Error Query</title>
<updated>2021-08-24T19:36:43+00:00</updated>
<author>
<name>John Clements</name>
<email>john.clements@amd.com</email>
</author>
<published>2021-08-24T06:56:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=f24d991bb9641d9467d2a0096239c58bf3d2b388'/>
<id>f24d991bb9641d9467d2a0096239c58bf3d2b388</id>
<content type='text'>
Resolve bug querying error on unsupported ASIC

Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: John Clements &lt;john.clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Resolve bug querying error on unsupported ASIC

Reviewed-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Signed-off-by: John Clements &lt;john.clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: get extended xgmi topology data</title>
<updated>2021-08-18T22:22:24+00:00</updated>
<author>
<name>Jonathan Kim</name>
<email>jonathan.kim@amd.com</email>
</author>
<published>2021-08-03T23:01:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=44357a1bd5f5a1012024a127a4653c2dfa4af18a'/>
<id>44357a1bd5f5a1012024a127a4653c2dfa4af18a</id>
<content type='text'>
The TA has a limit to the amount of data that can be retrieved from
GET_TOPOLOGY.  For setups that exceed this limit, the xGMI topology
needs to be re-initialized and data needs to be re-fetched from the
extended link records by setting a flag in the shared command buffer.

The number of hops and the number of links must be accumulated by the
driver. Other data points are all fetched from the first request.
Because the TA has already exceeded its link record limit, it
cannot hold bidirectional information.  Otherwise the driver would
have to do more than two fetches so the driver has to reflect the
topology information in the opposite direction.

v2: squashed with internal reviewed fix

Signed-off-by: Jonathan Kim &lt;jonathan.kim@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;hawking.zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The TA has a limit to the amount of data that can be retrieved from
GET_TOPOLOGY.  For setups that exceed this limit, the xGMI topology
needs to be re-initialized and data needs to be re-fetched from the
extended link records by setting a flag in the shared command buffer.

The number of hops and the number of links must be accumulated by the
driver. Other data points are all fetched from the first request.
Because the TA has already exceeded its link record limit, it
cannot hold bidirectional information.  Otherwise the driver would
have to do more than two fetches so the driver has to reflect the
topology information in the opposite direction.

v2: squashed with internal reviewed fix

Signed-off-by: Jonathan Kim &lt;jonathan.kim@amd.com&gt;
Reviewed-by: Hawking Zhang &lt;hawking.zhang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/amdgpu: remove unnecessary RAS context field</title>
<updated>2021-08-16T19:35:55+00:00</updated>
<author>
<name>Candice Li</name>
<email>candice.li@amd.com</email>
</author>
<published>2021-08-13T11:06:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=893cf382c0403d7c4581f0f01f6d06c76485123d'/>
<id>893cf382c0403d7c4581f0f01f6d06c76485123d</id>
<content type='text'>
Delete ras_if-&gt;name in the RAS ctx structure and remove related lines.

Signed-off-by: Candice Li &lt;candice.li@amd.com&gt;
Reviewed-by: John Clements &lt;john.clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Delete ras_if-&gt;name in the RAS ctx structure and remove related lines.

Signed-off-by: Candice Li &lt;candice.li@amd.com&gt;
Reviewed-by: John Clements &lt;john.clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdkfd: report xgmi bandwidth between direct peers to the kfd</title>
<updated>2021-07-23T14:07:59+00:00</updated>
<author>
<name>Jonathan Kim</name>
<email>jonathan.kim@amd.com</email>
</author>
<published>2021-05-12T16:30:41+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=3f46c4e9ce25bbcb9d619dbce57c8737c856b272'/>
<id>3f46c4e9ce25bbcb9d619dbce57c8737c856b272</id>
<content type='text'>
Report the min/max bandwidth in megabytes to the kfd for direct
xgmi connections only.  Indirect peers will report 0 since
indirect route is unknown.

Signed-off-by: Jonathan Kim &lt;jonathan.kim@amd.com&gt;
Reviewed-by: Felix Kuehling &lt;felix.kuehling@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Report the min/max bandwidth in megabytes to the kfd for direct
xgmi connections only.  Indirect peers will report 0 since
indirect route is unknown.

Signed-off-by: Jonathan Kim &lt;jonathan.kim@amd.com&gt;
Reviewed-by: Felix Kuehling &lt;felix.kuehling@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: move xgmi ras functions to xgmi_ras_funcs</title>
<updated>2021-04-09T20:51:07+00:00</updated>
<author>
<name>Hawking Zhang</name>
<email>Hawking.Zhang@amd.com</email>
</author>
<published>2021-03-18T12:18:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=52137ca8526cdeceab7651c314ce68ac49963512'/>
<id>52137ca8526cdeceab7651c314ce68ac49963512</id>
<content type='text'>
xgmi ras is not managed by gpu driver when gpu is
connected to cpu through xgmi. move all xgmi ras
functions to xgmi_ras_funcs so gpu driver only
initializes xgmi ras functions when it manages
xgmi ras.

Signed-off-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Reviewed-by: Dennis Li &lt;Dennis.Li@amd.com&gt;
Reviewed-by: John Clements &lt;John.Clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
xgmi ras is not managed by gpu driver when gpu is
connected to cpu through xgmi. move all xgmi ras
functions to xgmi_ras_funcs so gpu driver only
initializes xgmi ras functions when it manages
xgmi ras.

Signed-off-by: Hawking Zhang &lt;Hawking.Zhang@amd.com&gt;
Reviewed-by: Dennis Li &lt;Dennis.Li@amd.com&gt;
Reviewed-by: John Clements &lt;John.Clements@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
