<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h, branch v5.9-rc3</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>drm/amdgpu: support reserve bad page for virt (v3)</title>
<updated>2020-07-01T05:59:17+00:00</updated>
<author>
<name>Stanley.Yang</name>
<email>Stanley.Yang@amd.com</email>
</author>
<published>2020-05-14T08:44:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5278a159cf350142e91788f12659489e33a71a91'/>
<id>5278a159cf350142e91788f12659489e33a71a91</id>
<content type='text'>
v1: rename some functions name, only init ras error handler data for
    supported asic.

v2: fix potential memory leak.

Signed-off-by: Stanley.Yang &lt;Stanley.Yang@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Reviewed-by: Guchun Chen &lt;guchun.chen@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>
v1: rename some functions name, only init ras error handler data for
    supported asic.

v2: fix potential memory leak.

Signed-off-by: Stanley.Yang &lt;Stanley.Yang@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Reviewed-by: Guchun Chen &lt;guchun.chen@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: add amdgpu_virt_get_vf_mode helper function</title>
<updated>2020-05-18T15:23:52+00:00</updated>
<author>
<name>Kevin Wang</name>
<email>kevin1.wang@amd.com</email>
</author>
<published>2020-04-29T10:49:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a7f28103374787ae43b936cd2ec2f8388958668e'/>
<id>a7f28103374787ae43b936cd2ec2f8388958668e</id>
<content type='text'>
the swsmu or powerplay(hwmgr) need to handle task according to different VF mode,
this function to help query vf mode.

vf mode:
1. SRIOV_VF_MODE_BARE_METAL: the driver work on host  OS (PF)
2. SRIOV_VF_MODE_ONE_VF    : the driver work on guest OS with one VF
3. SRIOV_VF_MODE_MULTI_VF  : the driver work on guest OS with multi VF

Signed-off-by: Kevin Wang &lt;kevin1.wang@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 swsmu or powerplay(hwmgr) need to handle task according to different VF mode,
this function to help query vf mode.

vf mode:
1. SRIOV_VF_MODE_BARE_METAL: the driver work on host  OS (PF)
2. SRIOV_VF_MODE_ONE_VF    : the driver work on guest OS with one VF
3. SRIOV_VF_MODE_MULTI_VF  : the driver work on guest OS with multi VF

Signed-off-by: Kevin Wang &lt;kevin1.wang@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: resume kiq access debugfs</title>
<updated>2020-04-13T16:01:56+00:00</updated>
<author>
<name>Yintian Tao</name>
<email>yttao@amd.com</email>
</author>
<published>2020-04-13T06:31:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d32709dac627e5602fb3e66bcf4316906356120d'/>
<id>d32709dac627e5602fb3e66bcf4316906356120d</id>
<content type='text'>
If there is no GPU hang, user still can access
debugfs through kiq.

Signed-off-by: Yintian Tao &lt;yttao@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>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If there is no GPU hang, user still can access
debugfs through kiq.

Signed-off-by: Yintian Tao &lt;yttao@amd.com&gt;
Reviewed-by: Monk Liu &lt;Monk.liu@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: restrict debugfs register access under SR-IOV</title>
<updated>2020-04-13T16:01:04+00:00</updated>
<author>
<name>Yintian Tao</name>
<email>yttao@amd.com</email>
</author>
<published>2020-04-07T10:08:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=95a2f917387a23c8b09f4ab95e1560a69db5b1f1'/>
<id>95a2f917387a23c8b09f4ab95e1560a69db5b1f1</id>
<content type='text'>
Under bare metal, there is no more else to take
care of the GPU register access through MMIO.
Under Virtualization, to access GPU register is
implemented through KIQ during run-time due to
world-switch.

Therefore, under SR-IOV user can only access
debugfs to r/w GPU registers when meets all
three conditions below.
- amdgpu_gpu_recovery=0
- TDR happened
- in_gpu_reset=0

v2: merge amdgpu_virt_can_access_debugfs() into
    amdgpu_virt_enable_access_debugfs()

v3: drop ret variable in amdgpu_virt_enable_access_debugfs()
    and directly return result

Signed-off-by: Yintian Tao &lt;yttao@amd.com&gt;
Acked-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>
Under bare metal, there is no more else to take
care of the GPU register access through MMIO.
Under Virtualization, to access GPU register is
implemented through KIQ during run-time due to
world-switch.

Therefore, under SR-IOV user can only access
debugfs to r/w GPU registers when meets all
three conditions below.
- amdgpu_gpu_recovery=0
- TDR happened
- in_gpu_reset=0

v2: merge amdgpu_virt_can_access_debugfs() into
    amdgpu_virt_enable_access_debugfs()

v3: drop ret variable in amdgpu_virt_enable_access_debugfs()
    and directly return result

Signed-off-by: Yintian Tao &lt;yttao@amd.com&gt;
Acked-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: introduce new request and its function</title>
<updated>2020-04-01T18:44:43+00:00</updated>
<author>
<name>Monk Liu</name>
<email>Monk.Liu@amd.com</email>
</author>
<published>2020-03-04T03:38:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=aa53bc2edb66624ac05902910c41d8b4f685b8bc'/>
<id>aa53bc2edb66624ac05902910c41d8b4f685b8bc</id>
<content type='text'>
1) modify xgpu_nv_send_access_requests to support
new idh request

2) introduce new function: req_gpu_init_data() which
is used to notify host to prepare vbios/ip-discovery/pfvf exchange

Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@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>
1) modify xgpu_nv_send_access_requests to support
new idh request

2) introduce new function: req_gpu_init_data() which
is used to notify host to prepare vbios/ip-discovery/pfvf exchange

Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: cleanup all virtualization detection routine</title>
<updated>2020-04-01T18:44:42+00:00</updated>
<author>
<name>Monk Liu</name>
<email>Monk.Liu@amd.com</email>
</author>
<published>2020-03-04T06:02:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=3aa0115d238c71423d0e212138678a8cf51d4361'/>
<id>3aa0115d238c71423d0e212138678a8cf51d4361</id>
<content type='text'>
we need to move virt detection much earlier because:
1) HW team confirms us that RCC_IOV_FUNC_IDENTIFIER will always
be at DE5 (dw) mmio offset from vega10, this way there is no
need to implement detect_hw_virt() routine in each nbio/chip file.
for VI SRIOV chip (tonga &amp; fiji), the BIF_IOV_FUNC_IDENTIFIER is at
0x1503

2) we need to acknowledged we are SRIOV VF before we do IP discovery because
the IP discovery content will be updated by host everytime after it recieved
a new coming "REQ_GPU_INIT_DATA" request from guest (there will be patches
for this new handshake soon).

Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@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>
we need to move virt detection much earlier because:
1) HW team confirms us that RCC_IOV_FUNC_IDENTIFIER will always
be at DE5 (dw) mmio offset from vega10, this way there is no
need to implement detect_hw_virt() routine in each nbio/chip file.
for VI SRIOV chip (tonga &amp; fiji), the BIF_IOV_FUNC_IDENTIFIER is at
0x1503

2) we need to acknowledged we are SRIOV VF before we do IP discovery because
the IP discovery content will be updated by host everytime after it recieved
a new coming "REQ_GPU_INIT_DATA" request from guest (there will be patches
for this new handshake soon).

Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: amends feature bits for MM bandwidth mgr</title>
<updated>2020-04-01T18:44:42+00:00</updated>
<author>
<name>Monk Liu</name>
<email>Monk.Liu@amd.com</email>
</author>
<published>2020-03-03T11:23:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b89659b783291f9e91dd2d91fc34fc6354116bfe'/>
<id>b89659b783291f9e91dd2d91fc34fc6354116bfe</id>
<content type='text'>
Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@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>
Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: revise RLCG access path</title>
<updated>2020-03-16T20:17:55+00:00</updated>
<author>
<name>Monk Liu</name>
<email>Monk.Liu@amd.com</email>
</author>
<published>2020-03-10T12:28:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2e0cc4d48b91a856a34027b093306c01c45d3a38'/>
<id>2e0cc4d48b91a856a34027b093306c01c45d3a38</id>
<content type='text'>
what changed:
1)provide new implementation interface for the rlcg access path
2)put SQ_CMD/SQ_IND_INDEX to GFX9 RLCG path to let debugfs's reg_op
function can access reg that need RLCG path help

now even debugfs's reg_op can used to dump wave.

tested-by: Monk Liu &lt;monk.liu@amd.com&gt;
tested-by: Zhou pengju &lt;pengju.zhou@amd.com&gt;
Signed-off-by: Zhou pengju &lt;pengju.zhou@amd.com&gt;
Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@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>
what changed:
1)provide new implementation interface for the rlcg access path
2)put SQ_CMD/SQ_IND_INDEX to GFX9 RLCG path to let debugfs's reg_op
function can access reg that need RLCG path help

now even debugfs's reg_op can used to dump wave.

tested-by: Monk Liu &lt;monk.liu@amd.com&gt;
tested-by: Zhou pengju &lt;pengju.zhou@amd.com&gt;
Signed-off-by: Zhou pengju &lt;pengju.zhou@amd.com&gt;
Signed-off-by: Monk Liu &lt;Monk.Liu@amd.com&gt;
Reviewed-by: Emily Deng &lt;Emily.Deng@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: provide a generic function interface for reading/writing register by KIQ</title>
<updated>2020-01-22T21:34:14+00:00</updated>
<author>
<name>chen gong</name>
<email>curry.gong@amd.com</email>
</author>
<published>2020-01-15T06:32:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d33a99c4b63643d3d7a85d4dfb2ac5afb01eebca'/>
<id>d33a99c4b63643d3d7a85d4dfb2ac5afb01eebca</id>
<content type='text'>
Move amdgpu_virt_kiq_rreg/amdgpu_virt_kiq_wreg function to amdgpu_gfx.c,
and rename them to amdgpu_kiq_rreg/amdgpu_kiq_wreg.Make it generic and
flexible.

Signed-off-by: chen gong &lt;curry.gong@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Huang Rui &lt;ray.huang@amd.com&gt;
Acked-by: Christian König &lt;christian.koenig@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>
Move amdgpu_virt_kiq_rreg/amdgpu_virt_kiq_wreg function to amdgpu_gfx.c,
and rename them to amdgpu_kiq_rreg/amdgpu_kiq_wreg.Make it generic and
flexible.

Signed-off-by: chen gong &lt;curry.gong@amd.com&gt;
Reviewed-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Huang Rui &lt;ray.huang@amd.com&gt;
Acked-by: Christian König &lt;christian.koenig@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/powerplay: enable pp one vf mode for vega10</title>
<updated>2019-12-11T20:22:07+00:00</updated>
<author>
<name>Yintian Tao</name>
<email>yttao@amd.com</email>
</author>
<published>2019-10-30T09:16:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c9ffa427db34e6896523f0ef0c172a0bbb77c9ad'/>
<id>c9ffa427db34e6896523f0ef0c172a0bbb77c9ad</id>
<content type='text'>
Originally, due to the restriction from PSP and SMU, VF has
to send message to hypervisor driver to handle powerplay
change which is complicated and redundant. Currently, SMU
and PSP can support VF to directly handle powerplay
change by itself. Therefore, the old code about the handshake
between VF and PF to handle powerplay will be removed and VF
will use new the registers below to handshake with SMU.
mmMP1_SMN_C2PMSG_101: register to handle SMU message
mmMP1_SMN_C2PMSG_102: register to handle SMU parameter
mmMP1_SMN_C2PMSG_103: register to handle SMU response

v2: remove module parameter pp_one_vf
v3: fix the parens
v4: forbid vf to change smu feature
v5: use hwmon_attributes_visible to skip sepicified hwmon atrribute
v6: change skip condition at vega10_copy_table_to_smc

Signed-off-by: Yintian Tao &lt;yttao@amd.com&gt;
Acked-by: Evan Quan &lt;evan.quan@amd.com&gt;
Reviewed-by: Kenneth Feng &lt;kenneth.feng@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>
Originally, due to the restriction from PSP and SMU, VF has
to send message to hypervisor driver to handle powerplay
change which is complicated and redundant. Currently, SMU
and PSP can support VF to directly handle powerplay
change by itself. Therefore, the old code about the handshake
between VF and PF to handle powerplay will be removed and VF
will use new the registers below to handshake with SMU.
mmMP1_SMN_C2PMSG_101: register to handle SMU message
mmMP1_SMN_C2PMSG_102: register to handle SMU parameter
mmMP1_SMN_C2PMSG_103: register to handle SMU response

v2: remove module parameter pp_one_vf
v3: fix the parens
v4: forbid vf to change smu feature
v5: use hwmon_attributes_visible to skip sepicified hwmon atrribute
v6: change skip condition at vega10_copy_table_to_smc

Signed-off-by: Yintian Tao &lt;yttao@amd.com&gt;
Acked-by: Evan Quan &lt;evan.quan@amd.com&gt;
Reviewed-by: Kenneth Feng &lt;kenneth.feng@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
