<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c, branch v7.2-rc2</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>drm/amdgpu: invoke pm_genpd_remove() before freeing genpd</title>
<updated>2026-07-01T17:00:26+00:00</updated>
<author>
<name>Ce Sun</name>
<email>cesun102@amd.com</email>
</author>
<published>2026-06-22T14:58:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=28c9b3c5dc35cc790d11e26ca3fc6e068be63998'/>
<id>28c9b3c5dc35cc790d11e26ca3fc6e068be63998</id>
<content type='text'>
Call pm_genpd_remove() to unregister from global list prior to releasing
acp_genpd memory, and clear the pointer after free.

Signed-off-by: Ce Sun &lt;cesun102@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
(cherry picked from commit cd8650d7a91ee8b768e202354672553faa5cc1f2)
Cc: stable@vger.kernel.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Call pm_genpd_remove() to unregister from global list prior to releasing
acp_genpd memory, and clear the pointer after free.

Signed-off-by: Ce Sun &lt;cesun102@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
(cherry picked from commit cd8650d7a91ee8b768e202354672553faa5cc1f2)
Cc: stable@vger.kernel.org
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: fix resource leak on ACP reset timeout</title>
<updated>2026-07-01T17:00:19+00:00</updated>
<author>
<name>Ce Sun</name>
<email>cesun102@amd.com</email>
</author>
<published>2026-06-22T15:05:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=020da7c5aac5b86bad8a1571f6eda6b8cff9331d'/>
<id>020da7c5aac5b86bad8a1571f6eda6b8cff9331d</id>
<content type='text'>
When ACP soft reset poll times out, original code returns early without cleanup,
leaking MFD child devices, genpd links and all ACP heap allocations.

Replace direct early return with goto out to force run all cleanup logic
regardless of reset success, preserve timeout error code for caller.

Signed-off-by: Ce Sun &lt;cesun102@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
(cherry picked from commit 98073e4328d7a8d75d03696ab27f6de70ef1aeda)
Cc: stable@vger.kernel.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When ACP soft reset poll times out, original code returns early without cleanup,
leaking MFD child devices, genpd links and all ACP heap allocations.

Replace direct early return with goto out to force run all cleanup logic
regardless of reset success, preserve timeout error code for caller.

Signed-off-by: Ce Sun &lt;cesun102@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
(cherry picked from commit 98073e4328d7a8d75d03696ab27f6de70ef1aeda)
Cc: stable@vger.kernel.org
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: Fix memory leak of i2s_pdata in ACP initialization</title>
<updated>2026-05-19T15:51:39+00:00</updated>
<author>
<name>Ce Sun</name>
<email>cesun102@amd.com</email>
</author>
<published>2026-05-12T01:53:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=e57f79cc4482b86d312e532e67ad3f576d51712d'/>
<id>e57f79cc4482b86d312e532e67ad3f576d51712d</id>
<content type='text'>
Currently, the i2s_pdata structure is dynamically allocated in
acp_hw_init() but never freed in both the error handling path and
the acp_hw_fini() cleanup path, causing a permanent memory leak.

Signed-off-by: Ce Sun &lt;cesun102@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@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>
Currently, the i2s_pdata structure is dynamically allocated in
acp_hw_init() but never freed in both the error handling path and
the acp_hw_fini() cleanup path, causing a permanent memory leak.

Signed-off-by: Ce Sun &lt;cesun102@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Convert more 'alloc_obj' cases to default GFP_KERNEL arguments</title>
<updated>2026-02-22T04:03:00+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-02-22T04:03:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=32a92f8c89326985e05dce8b22d3f0aa07a3e1bd'/>
<id>32a92f8c89326985e05dce8b22d3f0aa07a3e1bd</id>
<content type='text'>
This converts some of the visually simpler cases that have been split
over multiple lines.  I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.

Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script.  I probably had made it a bit _too_ trivial.

So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.

The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This converts some of the visually simpler cases that have been split
over multiple lines.  I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.

Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script.  I probably had made it a bit _too_ trivial.

So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.

The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Convert 'alloc_obj' family to use the new default GFP_KERNEL argument</title>
<updated>2026-02-22T01:09:51+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2026-02-22T00:37:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43'/>
<id>bf4afc53b77aeaa48b5409da5c8da6bb4eff7f43</id>
<content type='text'>
This was done entirely with mindless brute force, using

    git grep -l '\&lt;k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This was done entirely with mindless brute force, using

    git grep -l '\&lt;k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: Replace kmalloc with kmalloc_obj for non-scalar types</title>
<updated>2026-02-21T09:02:28+00:00</updated>
<author>
<name>Kees Cook</name>
<email>kees@kernel.org</email>
</author>
<published>2026-02-21T07:49:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=69050f8d6d075dc01af7a5f2f550a8067510366f'/>
<id>69050f8d6d075dc01af7a5f2f550a8067510366f</id>
<content type='text'>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook &lt;kees@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook &lt;kees@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: use static ids for ACP platform devs</title>
<updated>2025-12-02T16:02:07+00:00</updated>
<author>
<name>Brady Norander</name>
<email>bradynorander@gmail.com</email>
</author>
<published>2025-03-25T21:05:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=0300e6d6ff63ff86f9acca65071ecbfff50eb575'/>
<id>0300e6d6ff63ff86f9acca65071ecbfff50eb575</id>
<content type='text'>
mfd_add_hotplug_devices() assigns child platform devices with
PLATFORM_DEVID_AUTO, but the ACP machine drivers expect the platform
device names to never change. Use mfd_add_devices() instead and give
each cell a unique id.

Signed-off-by: Brady Norander &lt;bradynorander@gmail.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>
mfd_add_hotplug_devices() assigns child platform devices with
PLATFORM_DEVID_AUTO, but the ACP machine drivers expect the platform
device names to never change. Use mfd_add_devices() instead and give
each cell a unique id.

Signed-off-by: Brady Norander &lt;bradynorander@gmail.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: update the handle ptr in is_idle</title>
<updated>2025-02-25T16:43:58+00:00</updated>
<author>
<name>Sunil Khatri</name>
<email>sunil.khatri@amd.com</email>
</author>
<published>2025-02-19T18:10:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=7dc340540363a008cee1e160e8f2a4f034f196d4'/>
<id>7dc340540363a008cee1e160e8f2a4f034f196d4</id>
<content type='text'>
Update the *handle to amdgpu_ip_block ptr for all
functions pointers of is_idle.

Signed-off-by: Sunil Khatri &lt;sunil.khatri@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@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 the *handle to amdgpu_ip_block ptr for all
functions pointers of is_idle.

Signed-off-by: Sunil Khatri &lt;sunil.khatri@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: pass ip_block in set_clockgating_state</title>
<updated>2024-12-10T15:26:47+00:00</updated>
<author>
<name>Boyuan Zhang</name>
<email>boyuan.zhang@amd.com</email>
</author>
<published>2024-10-07T23:43:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=f2ba8c3d510695c68ede786b3a37a9aa170ddfae'/>
<id>f2ba8c3d510695c68ede786b3a37a9aa170ddfae</id>
<content type='text'>
Pass ip_block instead of adev in set_clockgating_state() callback
functions. Modify set_clockgating_state()for all correspoding ip blocks.

v2: remove all changes for is_idle(), remove type casting

Signed-off-by: Boyuan Zhang &lt;boyuan.zhang@amd.com&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Reviewed-by: Sunil Khatri &lt;sunil.khatri@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>
Pass ip_block instead of adev in set_clockgating_state() callback
functions. Modify set_clockgating_state()for all correspoding ip blocks.

v2: remove all changes for is_idle(), remove type casting

Signed-off-by: Boyuan Zhang &lt;boyuan.zhang@amd.com&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Reviewed-by: Sunil Khatri &lt;sunil.khatri@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: pass ip_block in set_powergating_state</title>
<updated>2024-12-10T15:26:47+00:00</updated>
<author>
<name>Boyuan Zhang</name>
<email>boyuan.zhang@amd.com</email>
</author>
<published>2024-09-29T19:17:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=80d80511241cd3f532704dc4abbb604425552396'/>
<id>80d80511241cd3f532704dc4abbb604425552396</id>
<content type='text'>
Pass ip_block instead of adev in set_powergating_state callback function.
Modify set_powergating_state ip functions for all correspoding ip blocks.

v2: fix a ip block index error.

v3: remove type casting

Signed-off-by: Boyuan Zhang &lt;boyuan.zhang@amd.com&gt;
Suggested-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Sunil Khatri &lt;sunil.khatri@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>
Pass ip_block instead of adev in set_powergating_state callback function.
Modify set_powergating_state ip functions for all correspoding ip blocks.

v2: fix a ip block index error.

v3: remove type casting

Signed-off-by: Boyuan Zhang &lt;boyuan.zhang@amd.com&gt;
Suggested-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Sunil Khatri &lt;sunil.khatri@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
