<feed xmlns='http://www.w3.org/2005/Atom'>
<title>kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c, branch v5.16.1</title>
<subtitle>Linux kernel stable tree (mirror)</subtitle>
<id>https://git.radix-linux.su/kernel/linux.git/atom?h=v5.16.1</id>
<link rel='self' href='https://git.radix-linux.su/kernel/linux.git/atom?h=v5.16.1'/>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/'/>
<updated>2021-10-07T15:55:46+00:00</updated>
<entry>
<title>drm/amdgpu: unify BO evicting method in amdgpu_ttm</title>
<updated>2021-10-07T15:55:46+00:00</updated>
<author>
<name>Nirmoy Das</name>
<email>nirmoy.das@amd.com</email>
</author>
<published>2021-10-06T15:55:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=58144d283712c9e80e528e001af6ac5aeee71af2'/>
<id>urn:sha1:58144d283712c9e80e528e001af6ac5aeee71af2</id>
<content type='text'>
Unify BO evicting functionality for possible memory
types in amdgpu_ttm.c.

Signed-off-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: return early if debugfs is not initialized</title>
<updated>2021-10-06T19:53:14+00:00</updated>
<author>
<name>Nirmoy Das</name>
<email>nirmoy.das@amd.com</email>
</author>
<published>2021-10-06T09:06:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=5b9581df9f17b3e356d67735a07da97ba8e1fdd0'/>
<id>urn:sha1:5b9581df9f17b3e356d67735a07da97ba8e1fdd0</id>
<content type='text'>
Check first if debugfs is initialized before creating
amdgpu debugfs files.

References: https://gitlab.freedesktop.org/drm/amd/-/issues/1686
Signed-off-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Reviewed-by: Lijo Lazar &lt;lijo.lazar@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: revert "Add autodump debugfs node for gpu reset v8"</title>
<updated>2021-10-05T16:22:36+00:00</updated>
<author>
<name>Christian König</name>
<email>christian.koenig@amd.com</email>
</author>
<published>2021-09-30T09:22:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=c8365dbda056578eebe164bf110816b1a39b4b7f'/>
<id>urn:sha1:c8365dbda056578eebe164bf110816b1a39b4b7f</id>
<content type='text'>
This reverts commit 728e7e0cd61899208e924472b9e641dbeb0775c4.

Further discussion reveals that this feature is severely broken
and needs to be reverted ASAP.

GPU reset can never be delayed by userspace even for debugging or
otherwise we can run into in kernel deadlocks.

Signed-off-by: Christian König &lt;christian.koenig@amd.com&gt;
Acked-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Acked-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: add debugfs access to the IP discovery table</title>
<updated>2021-10-04T19:22:58+00:00</updated>
<author>
<name>Alex Deucher</name>
<email>alexander.deucher@amd.com</email>
</author>
<published>2021-07-20T18:53:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=81d1bf01e4820962d6ea218ff5b9719e81e5812d'/>
<id>urn:sha1:81d1bf01e4820962d6ea218ff5b9719e81e5812d</id>
<content type='text'>
Useful for debugging and new asic validation.

Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: Fix a race of IB test</title>
<updated>2021-09-14T19:59:58+00:00</updated>
<author>
<name>xinhui pan</name>
<email>xinhui.pan@amd.com</email>
</author>
<published>2021-09-11T01:41:29+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=0fcfb30019d3e0b891a201e41262b926648c38b0'/>
<id>urn:sha1:0fcfb30019d3e0b891a201e41262b926648c38b0</id>
<content type='text'>
Direct IB submission should be exclusive. So use write lock.

Signed-off-by: xinhui pan &lt;xinhui.pan@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: cleanup debugfs for amdgpu rings</title>
<updated>2021-09-14T19:35:59+00:00</updated>
<author>
<name>Nirmoy Das</name>
<email>nirmoy.das@amd.com</email>
</author>
<published>2021-09-02T13:31:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=62d266b2bd4afb216791d6eff8f3d65542fd4d16'/>
<id>urn:sha1:62d266b2bd4afb216791d6eff8f3d65542fd4d16</id>
<content type='text'>
Use debugfs_create_file_size API for creating ring debugfs, and as its a
NULL returning API, change the return type for amdgpu_debugfs_ring_init
API as well. Also cleanup surrounding code.

Signed-off-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Reviewed-by: Shashank Sharma &lt;shashank.sharma@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: use IS_ERR for debugfs APIs</title>
<updated>2021-09-14T19:35:44+00:00</updated>
<author>
<name>Nirmoy Das</name>
<email>nirmoy.das@amd.com</email>
</author>
<published>2021-09-02T11:27:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=59715cffce19cfd4f7cffcf6d7ecc18478af8c4a'/>
<id>urn:sha1:59715cffce19cfd4f7cffcf6d7ecc18478af8c4a</id>
<content type='text'>
debugfs APIs returns encoded error so use
IS_ERR for checking return value.

v2: return PTR_ERR(ent)

References: https://gitlab.freedesktop.org/drm/amd/-/issues/1686
Signed-off-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Reviewed-By: Shashank Sharma &lt;shashank.sharma@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amd/amdgpu: New debugfs interface for MMIO registers (v5)</title>
<updated>2021-09-01T20:55:11+00:00</updated>
<author>
<name>Tom St Denis</name>
<email>tom.stdenis@amd.com</email>
</author>
<published>2021-08-20T18:03:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=37df9560cd3e7cb23f28ab04514f0a2ab08b3cea'/>
<id>urn:sha1:37df9560cd3e7cb23f28ab04514f0a2ab08b3cea</id>
<content type='text'>
This new debugfs interface uses an IOCTL interface in order to pass
along state information like SRBM and GRBM bank switching.  This
new interface also allows a full 32-bit MMIO address range which
the previous didn't.  With this new design we have room to grow
the flexibility of the file as need be.

(v2): Move read/write to .read/.write, fix style, add comment
      for IOCTL data structure

(v3): C style comments

(v4): use u32 in struct and remove offset variable

(v5): Drop flag clearing in op function, use 0xFFFFFFFF for broadcast
      instead of 0x3FF, use mutex for op/ioctl.

Signed-off-by: Tom St Denis &lt;tom.stdenis@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amd/amdgpu embed hw_fence into amdgpu_job</title>
<updated>2021-08-16T19:16:58+00:00</updated>
<author>
<name>Jack Zhang</name>
<email>Jack.Zhang1@amd.com</email>
</author>
<published>2021-05-12T07:06:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=c530b02f39850a639b72d01ebbf7e5d745c60831'/>
<id>urn:sha1:c530b02f39850a639b72d01ebbf7e5d745c60831</id>
<content type='text'>
Why: Previously hw fence is alloced separately with job.
It caused historical lifetime issues and corner cases.
The ideal situation is to take fence to manage both job
and fence's lifetime, and simplify the design of gpu-scheduler.

How:
We propose to embed hw_fence into amdgpu_job.
1. We cover the normal job submission by this method.
2. For ib_test, and submit without a parent job keep the
legacy way to create a hw fence separately.
v2:
use AMDGPU_FENCE_FLAG_EMBED_IN_JOB_BIT to show that the fence is
embedded in a job.
v3:
remove redundant variable ring in amdgpu_job
v4:
add tdr sequence support for this feature. Add a job_run_counter to
indicate whether this job is a resubmit job.
v5
add missing handling in amdgpu_fence_enable_signaling

Signed-off-by: Jingwen Chen &lt;Jingwen.Chen2@amd.com&gt;
Signed-off-by: Jack Zhang &lt;Jack.Zhang7@hotmail.com&gt;
Reviewed-by: Andrey Grodzovsky &lt;andrey.grodzovsky@amd.com&gt;
Reviewed by: Monk Liu &lt;monk.liu@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
<entry>
<title>drm/amdgpu: remove amdgpu_vm_pt</title>
<updated>2021-06-15T21:25:42+00:00</updated>
<author>
<name>Nirmoy Das</name>
<email>nirmoy.das@amd.com</email>
</author>
<published>2021-06-15T21:23:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.radix-linux.su/kernel/linux.git/commit/?id=391629bdfcb9014e8bcd1be216b59854877e70ed'/>
<id>urn:sha1:391629bdfcb9014e8bcd1be216b59854877e70ed</id>
<content type='text'>
Page table entries are now in embedded in VM BO, so
we do not need struct amdgpu_vm_pt. This patch replaces
struct amdgpu_vm_pt with struct amdgpu_vm_bo_base.

Signed-off-by: Nirmoy Das &lt;nirmoy.das@amd.com&gt;
Reviewed-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
</entry>
</feed>
