<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/gpu/drm, branch v6.4-rc2</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>Merge tag 'amd-drm-fixes-6.4-2023-05-11' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes</title>
<updated>2023-05-11T20:46:34+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2023-05-11T20:46:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d8843eebbbd15b78c6a7745717b3705eca923b0f'/>
<id>d8843eebbbd15b78c6a7745717b3705eca923b0f</id>
<content type='text'>
amdgpu:
- VCN3 fixes
- APUs always support PCI atomics
- Legacy power management fixes
- DCN 3.1.4 fix
- DCFCLK fix
- Fix several RAS irq refcount mismatches
- GPU Reset fix
- GFX 11.0.4 fix

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230511141755.7896-1-alexander.deucher@amd.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
amdgpu:
- VCN3 fixes
- APUs always support PCI atomics
- Legacy power management fixes
- DCN 3.1.4 fix
- DCFCLK fix
- Fix several RAS irq refcount mismatches
- GPU Reset fix
- GFX 11.0.4 fix

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230511141755.7896-1-alexander.deucher@amd.com
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'drm-intel-fixes-2023-05-11-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes</title>
<updated>2023-05-11T20:45:55+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2023-05-11T20:45:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9235c21c37facd131b4d126ce7535ca573f850e3'/>
<id>9235c21c37facd131b4d126ce7535ca573f850e3</id>
<content type='text'>
- Fix to taint kernel when force_probe is used
- Null deref and div-by-zero fixes for display
- GuC error capture fix for Xe devices

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/ZFzdYV3O8lvVJ1DQ@jlahtine-mobl.ger.corp.intel.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
- Fix to taint kernel when force_probe is used
- Null deref and div-by-zero fixes for display
- GuC error capture fix for Xe devices

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/ZFzdYV3O8lvVJ1DQ@jlahtine-mobl.ger.corp.intel.com
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'drm-misc-fixes-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes</title>
<updated>2023-05-11T19:32:36+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2023-05-11T19:32:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=dc49c3b1d463a99fb529d2a69cc0e2270d6cb27e'/>
<id>dc49c3b1d463a99fb529d2a69cc0e2270d6cb27e</id>
<content type='text'>
drm-misc-fixes for v6.4-rc2:
- More DSC macro fixes.
- Small mipi-dsi fix.
- Scheduler timeout handling fix.

---

drm-misc-fixes for v6.4-rc1:
- Fix DSC macros.
- Fix VESA format for simplefb.
- Prohibit potential out-of-bounds access in generic fbdev emulation.
- Improve AST2500+ compat on ARM.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/b34135e3-2651-4e0a-a776-9b047882b1b2@linux.intel.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
drm-misc-fixes for v6.4-rc2:
- More DSC macro fixes.
- Small mipi-dsi fix.
- Scheduler timeout handling fix.

---

drm-misc-fixes for v6.4-rc1:
- Fix DSC macros.
- Fix VESA format for simplefb.
- Prohibit potential out-of-bounds access in generic fbdev emulation.
- Improve AST2500+ compat on ARM.

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/b34135e3-2651-4e0a-a776-9b047882b1b2@linux.intel.com
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu: change gfx 11.0.4 external_id range</title>
<updated>2023-05-11T13:11:14+00:00</updated>
<author>
<name>Yifan Zhang</name>
<email>yifan1.zhang@amd.com</email>
</author>
<published>2023-05-10T08:13:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=996e93a3fe74dcf9d467ae3020aea42cc3ff65e3'/>
<id>996e93a3fe74dcf9d467ae3020aea42cc3ff65e3</id>
<content type='text'>
gfx 11.0.4 range starts from 0x80.

Fixes: 311d52367d0a ("drm/amdgpu: add soc21 common ip block support for GC 11.0.4")
Cc: stable@vger.kernel.org
Signed-off-by: Yifan Zhang &lt;yifan1.zhang@amd.com&gt;
Reported-by: Yogesh Mohan Marimuthu &lt;Yogesh.Mohanmarimuthu@amd.com&gt;
Acked-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Tim Huang &lt;Tim.Huang@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>
gfx 11.0.4 range starts from 0x80.

Fixes: 311d52367d0a ("drm/amdgpu: add soc21 common ip block support for GC 11.0.4")
Cc: stable@vger.kernel.org
Signed-off-by: Yifan Zhang &lt;yifan1.zhang@amd.com&gt;
Reported-by: Yogesh Mohan Marimuthu &lt;Yogesh.Mohanmarimuthu@amd.com&gt;
Acked-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Reviewed-by: Tim Huang &lt;Tim.Huang@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu/jpeg: Remove harvest checking for JPEG3</title>
<updated>2023-05-11T12:41:48+00:00</updated>
<author>
<name>Saleemkhan Jamadar</name>
<email>saleemkhan.jamadar@amd.com</email>
</author>
<published>2023-05-09T07:07:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5b94db73e45e2e6c2840f39c022fd71dfa47fc58'/>
<id>5b94db73e45e2e6c2840f39c022fd71dfa47fc58</id>
<content type='text'>
Register CC_UVD_HARVESTING is obsolete for JPEG 3.1.2

Signed-off-by: Saleemkhan Jamadar &lt;saleemkhan.jamadar@amd.com&gt;
Reviewed-by: Veerabadhran Gopalakrishnan &lt;Veerabadhran.Gopalakrishnan@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org # 6.1.x
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Register CC_UVD_HARVESTING is obsolete for JPEG 3.1.2

Signed-off-by: Saleemkhan Jamadar &lt;saleemkhan.jamadar@amd.com&gt;
Reviewed-by: Veerabadhran Gopalakrishnan &lt;Veerabadhran.Gopalakrishnan@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org # 6.1.x
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras</title>
<updated>2023-05-11T12:41:48+00:00</updated>
<author>
<name>Guchun Chen</name>
<email>guchun.chen@amd.com</email>
</author>
<published>2023-05-06T12:06:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4a76680311330aefe5074bed8f06afa354b85c48'/>
<id>4a76680311330aefe5074bed8f06afa354b85c48</id>
<content type='text'>
gfx9 cp_ecc_error_irq is only enabled when legacy gfx ras is assert.
So in gfx_v9_0_hw_fini, interrupt disablement for cp_ecc_error_irq
should be executed under such condition, otherwise, an amdgpu_irq_put
calltrace will occur.

[ 7283.170322] RIP: 0010:amdgpu_irq_put+0x45/0x70 [amdgpu]
[ 7283.170964] RSP: 0018:ffff9a5fc3967d00 EFLAGS: 00010246
[ 7283.170967] RAX: ffff98d88afd3040 RBX: ffff98d89da20000 RCX: 0000000000000000
[ 7283.170969] RDX: 0000000000000000 RSI: ffff98d89da2bef8 RDI: ffff98d89da20000
[ 7283.170971] RBP: ffff98d89da20000 R08: ffff98d89da2ca18 R09: 0000000000000006
[ 7283.170973] R10: ffffd5764243c008 R11: 0000000000000000 R12: 0000000000001050
[ 7283.170975] R13: ffff98d89da38978 R14: ffffffff999ae15a R15: ffff98d880130105
[ 7283.170978] FS:  0000000000000000(0000) GS:ffff98d996f00000(0000) knlGS:0000000000000000
[ 7283.170981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7283.170983] CR2: 00000000f7a9d178 CR3: 00000001c42ea000 CR4: 00000000003506e0
[ 7283.170986] Call Trace:
[ 7283.170988]  &lt;TASK&gt;
[ 7283.170989]  gfx_v9_0_hw_fini+0x1c/0x6d0 [amdgpu]
[ 7283.171655]  amdgpu_device_ip_suspend_phase2+0x101/0x1a0 [amdgpu]
[ 7283.172245]  amdgpu_device_suspend+0x103/0x180 [amdgpu]
[ 7283.172823]  amdgpu_pmops_freeze+0x21/0x60 [amdgpu]
[ 7283.173412]  pci_pm_freeze+0x54/0xc0
[ 7283.173419]  ? __pfx_pci_pm_freeze+0x10/0x10
[ 7283.173425]  dpm_run_callback+0x98/0x200
[ 7283.173430]  __device_suspend+0x164/0x5f0

v2: drop gfx11 as it's fixed in a different solution by retiring cp_ecc_irq funcs(Hawking)

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2522
Signed-off-by: Guchun Chen &lt;guchun.chen@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
gfx9 cp_ecc_error_irq is only enabled when legacy gfx ras is assert.
So in gfx_v9_0_hw_fini, interrupt disablement for cp_ecc_error_irq
should be executed under such condition, otherwise, an amdgpu_irq_put
calltrace will occur.

[ 7283.170322] RIP: 0010:amdgpu_irq_put+0x45/0x70 [amdgpu]
[ 7283.170964] RSP: 0018:ffff9a5fc3967d00 EFLAGS: 00010246
[ 7283.170967] RAX: ffff98d88afd3040 RBX: ffff98d89da20000 RCX: 0000000000000000
[ 7283.170969] RDX: 0000000000000000 RSI: ffff98d89da2bef8 RDI: ffff98d89da20000
[ 7283.170971] RBP: ffff98d89da20000 R08: ffff98d89da2ca18 R09: 0000000000000006
[ 7283.170973] R10: ffffd5764243c008 R11: 0000000000000000 R12: 0000000000001050
[ 7283.170975] R13: ffff98d89da38978 R14: ffffffff999ae15a R15: ffff98d880130105
[ 7283.170978] FS:  0000000000000000(0000) GS:ffff98d996f00000(0000) knlGS:0000000000000000
[ 7283.170981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7283.170983] CR2: 00000000f7a9d178 CR3: 00000001c42ea000 CR4: 00000000003506e0
[ 7283.170986] Call Trace:
[ 7283.170988]  &lt;TASK&gt;
[ 7283.170989]  gfx_v9_0_hw_fini+0x1c/0x6d0 [amdgpu]
[ 7283.171655]  amdgpu_device_ip_suspend_phase2+0x101/0x1a0 [amdgpu]
[ 7283.172245]  amdgpu_device_suspend+0x103/0x180 [amdgpu]
[ 7283.172823]  amdgpu_pmops_freeze+0x21/0x60 [amdgpu]
[ 7283.173412]  pci_pm_freeze+0x54/0xc0
[ 7283.173419]  ? __pfx_pci_pm_freeze+0x10/0x10
[ 7283.173425]  dpm_run_callback+0x98/0x200
[ 7283.173430]  __device_suspend+0x164/0x5f0

v2: drop gfx11 as it's fixed in a different solution by retiring cp_ecc_irq funcs(Hawking)

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2522
Signed-off-by: Guchun Chen &lt;guchun.chen@amd.com&gt;
Reviewed-by: Tao Zhou &lt;tao.zhou1@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/pm: avoid potential UBSAN issue on legacy asics</title>
<updated>2023-05-11T12:41:36+00:00</updated>
<author>
<name>Guchun Chen</name>
<email>guchun.chen@amd.com</email>
</author>
<published>2023-05-09T01:36:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5247f05eadf1081a74b2233f291cee2efed25e3a'/>
<id>5247f05eadf1081a74b2233f291cee2efed25e3a</id>
<content type='text'>
Prevent further dpm casting on legacy asics without od_enabled in
amdgpu_dpm_is_overdrive_supported. This can avoid UBSAN complain
in init sequence.

v2: add a macro to check legacy dpm instead of checking asic family/type
v3: refine macro name for naming consistency

Suggested-by: Evan Quan &lt;evan.quan@amd.com&gt;
Signed-off-by: Guchun Chen &lt;guchun.chen@amd.com&gt;
Reviewed-by: Lijo Lazar &lt;lijo.lazar@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Prevent further dpm casting on legacy asics without od_enabled in
amdgpu_dpm_is_overdrive_supported. This can avoid UBSAN complain
in init sequence.

v2: add a macro to check legacy dpm instead of checking asic family/type
v3: refine macro name for naming consistency

Suggested-by: Evan Quan &lt;evan.quan@amd.com&gt;
Signed-off-by: Guchun Chen &lt;guchun.chen@amd.com&gt;
Reviewed-by: Lijo Lazar &lt;lijo.lazar@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/i915: taint kernel when force probing unsupported devices</title>
<updated>2023-05-11T11:11:59+00:00</updated>
<author>
<name>Jani Nikula</name>
<email>jani.nikula@intel.com</email>
</author>
<published>2023-05-04T10:35:08+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=79c901c93562bdf1c84ce6c1b744fbbe4389a6eb'/>
<id>79c901c93562bdf1c84ce6c1b744fbbe4389a6eb</id>
<content type='text'>
For development and testing purposes, the i915.force_probe module
parameter and DRM_I915_FORCE_PROBE kconfig option allow probing of
devices that aren't supported by the driver.

The i915.force_probe module parameter is "unsafe" and setting it taints
the kernel. However, using the kconfig option does not.

Always taint the kernel when force probing a device that is not
supported.

v2: Drop "depends on EXPERT" to avoid build breakage (kernel test robot)

Fixes: 7ef5ef5cdead ("drm/i915: add force_probe module parameter to replace alpha_support")
Cc: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Cc: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Cc: Tvrtko Ursulin &lt;tvrtko.ursulin@linux.intel.com&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Cc: Dave Airlie &lt;airlied@gmail.com&gt;
Acked-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Reviewed-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230504103508.1818540-1-jani.nikula@intel.com
(cherry picked from commit 3312bb4ad09ca6423bd4a5b15a94588a8962fb8e)
Signed-off-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
For development and testing purposes, the i915.force_probe module
parameter and DRM_I915_FORCE_PROBE kconfig option allow probing of
devices that aren't supported by the driver.

The i915.force_probe module parameter is "unsafe" and setting it taints
the kernel. However, using the kconfig option does not.

Always taint the kernel when force probing a device that is not
supported.

v2: Drop "depends on EXPERT" to avoid build breakage (kernel test robot)

Fixes: 7ef5ef5cdead ("drm/i915: add force_probe module parameter to replace alpha_support")
Cc: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
Cc: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Cc: Tvrtko Ursulin &lt;tvrtko.ursulin@linux.intel.com&gt;
Cc: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Cc: Dave Airlie &lt;airlied@gmail.com&gt;
Acked-by: Daniel Vetter &lt;daniel.vetter@ffwll.ch&gt;
Reviewed-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230504103508.1818540-1-jani.nikula@intel.com
(cherry picked from commit 3312bb4ad09ca6423bd4a5b15a94588a8962fb8e)
Signed-off-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/i915/dp: prevent potential div-by-zero</title>
<updated>2023-05-11T11:11:59+00:00</updated>
<author>
<name>Nikita Zhandarovich</name>
<email>n.zhandarovich@fintech.ru</email>
</author>
<published>2023-04-18T14:04:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0ff80028e2702c7c3d78b69705dc47c1ccba8c39'/>
<id>0ff80028e2702c7c3d78b69705dc47c1ccba8c39</id>
<content type='text'>
drm_dp_dsc_sink_max_slice_count() may return 0 if something goes
wrong on the part of the DSC sink and its DPCD register. This null
value may be later used as a divisor in intel_dsc_compute_params(),
which will lead to an error.
In the unlikely event that this issue occurs, fix it by testing the
return value of drm_dp_dsc_sink_max_slice_count() against zero.

Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.

Fixes: a4a157777c80 ("drm/i915/dp: Compute DSC pipe config in atomic check")
Signed-off-by: Nikita Zhandarovich &lt;n.zhandarovich@fintech.ru&gt;
Reviewed-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Signed-off-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230418140430.69902-1-n.zhandarovich@fintech.ru
(cherry picked from commit 51f7008239de011370c5067bbba07f0207f06b72)
Signed-off-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
drm_dp_dsc_sink_max_slice_count() may return 0 if something goes
wrong on the part of the DSC sink and its DPCD register. This null
value may be later used as a divisor in intel_dsc_compute_params(),
which will lead to an error.
In the unlikely event that this issue occurs, fix it by testing the
return value of drm_dp_dsc_sink_max_slice_count() against zero.

Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.

Fixes: a4a157777c80 ("drm/i915/dp: Compute DSC pipe config in atomic check")
Signed-off-by: Nikita Zhandarovich &lt;n.zhandarovich@fintech.ru&gt;
Reviewed-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Signed-off-by: Rodrigo Vivi &lt;rodrigo.vivi@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230418140430.69902-1-n.zhandarovich@fintech.ru
(cherry picked from commit 51f7008239de011370c5067bbba07f0207f06b72)
Signed-off-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/i915: Fix NULL ptr deref by checking new_crtc_state</title>
<updated>2023-05-11T11:11:59+00:00</updated>
<author>
<name>Stanislav Lisovskiy</name>
<email>stanislav.lisovskiy@intel.com</email>
</author>
<published>2023-05-05T08:22:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a41d985902c153c31c616fe183cf2ee331e95ecb'/>
<id>a41d985902c153c31c616fe183cf2ee331e95ecb</id>
<content type='text'>
intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't
obtained previously with intel_atomic_get_crtc_state, so we must check it
for NULLness here, just as in many other places, where we can't guarantee
that intel_atomic_get_crtc_state was called.
We are currently getting NULL ptr deref because of that, so this fix was
confirmed to help.

Fixes: 74a75dc90869 ("drm/i915/display: move plane prepare/cleanup to intel_atomic_plane.c")
Signed-off-by: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Reviewed-by: Andrzej Hajda &lt;andrzej.hajda@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230505082212.27089-1-stanislav.lisovskiy@intel.com
(cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)
Signed-off-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't
obtained previously with intel_atomic_get_crtc_state, so we must check it
for NULLness here, just as in many other places, where we can't guarantee
that intel_atomic_get_crtc_state was called.
We are currently getting NULL ptr deref because of that, so this fix was
confirmed to help.

Fixes: 74a75dc90869 ("drm/i915/display: move plane prepare/cleanup to intel_atomic_plane.c")
Signed-off-by: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Reviewed-by: Andrzej Hajda &lt;andrzej.hajda@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230505082212.27089-1-stanislav.lisovskiy@intel.com
(cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)
Signed-off-by: Joonas Lahtinen &lt;joonas.lahtinen@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
