Damon Ding [Thu, 9 Apr 2026 06:52:46 +0000 (14:52 +0800)]
drm/bridge: Move legacy bridge driver out of imx directory for multi-platform use
As suggested by Dmitry, the DRM legacy bridge driver can be pulled
out of imx/ subdir for multi-platform use. The driver is also renamed
to make it more generic and suitable for platforms other than i.MX.
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> # rk3588
Link: https://patch.msgid.link/20260409065301.446670-3-damon.ding@rock-chips.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Damon Ding [Thu, 9 Apr 2026 06:52:45 +0000 (14:52 +0800)]
drm/bridge: analogix_dp: Add &analogix_dp_plat_data.next_bridge
In order to move the panel/bridge parsing and attachmenet to the
Analogix side, add component struct drm_bridge *next_bridge to
platform data struct analogix_dp_plat_data.
The movement makes sense because the panel/bridge should logically
be positioned behind the Analogix bridge in the display pipeline.
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de> # rk3588
Link: https://patch.msgid.link/20260409065301.446670-2-damon.ding@rock-chips.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Steven Price [Wed, 8 Apr 2026 09:12:42 +0000 (10:12 +0100)]
drm/panthor: Fix kernel-doc in panthor_sched.c so it's visible
Various substructures defined in panthor_sched.c have kernel-doc which
is silently ignored because it doesn't include the full path to the
member. Fix these issues so that the kernel-doc text is actually output
by including the name of the parent.
Fixes:
de8548813824 ("drm/panthor: Add the scheduler logical block")
Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260408091242.799074-1-steven.price@arm.com
Alessio Belle [Mon, 30 Mar 2026 07:56:43 +0000 (08:56 +0100)]
drm/imagination: Minor improvements to job submission code documentation
Mixed list of clarifications and typo fixes.
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-8-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:42 +0000 (08:56 +0100)]
drm/imagination: Update check to skip prepare_job() for fragment jobs
By the time prepare_job() is called on a paired fragment job, the paired
geometry job might already be finished and its PM reference dropped.
Check the fragment job's PM reference instead which is a bit more likely
to be still set. This is a very minor optimization.
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-7-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:41 +0000 (08:56 +0100)]
drm/imagination: Move repeated job fence check to its own function
This should make the code slightly clearer.
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-6-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:40 +0000 (08:56 +0100)]
drm/imagination: Rename fence returned by pvr_queue_job_arm()
Rename from done_fence to finished_fence, both because the function
returns a drm_sched_fence's finished fence, and to avoid confusion with
the job fence, which is called the same but has a different purpose.
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-5-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:39 +0000 (08:56 +0100)]
drm/imagination: Rename pvr_queue_fence_is_ufo_backed() to reflect usage
This function is only used by the synchronization code to figure out if
a fence belongs to this driver.
Rename it to pvr_queue_fence_is_native() and update its documentation to
reflect its current purpose.
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-4-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:38 +0000 (08:56 +0100)]
drm/imagination: Skip check on paired job fence during job submission
While submitting a paired fragment job, there is no need to manually
look for, and skip, the paired job fence, as the existing logic to
resolve dependencies to pvr_queue_fence objects will have failed to
resolve it already and continued with the next one.
Point this out where the fence is actually accessed and drop the related
check.
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-3-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:37 +0000 (08:56 +0100)]
drm/imagination: Fit paired fragment job in the correct CCCB
For geometry jobs with a paired fragment job, at the moment, the
DRM scheduler's prepare_job() callback:
- checks for internal (driver) dependencies for the geometry job;
- calls into pvr_queue_get_paired_frag_job_dep() to check for external
dependencies for the fragment job (the two jobs are submitted together
but the common scheduler code doesn't know about it, so this needs to
be done at this point in time);
- calls into the prepare_job() callback again, but for the fragment job,
to check its internal dependencies as well, passing the fragment job's
drm_sched_job and the geometry job's drm_sched_entity / pvr_queue.
The problem with the last step is that pvr_queue_prepare_job() doesn't
always take the mismatched fragment job and geometry queue into account,
in particular when checking whether there is space for the fragment
command to be submitted, so the code ends up checking for space in the
geometry (i.e. wrong) CCCB.
The rest of the nested prepare_job() callback happens to work fine at
the moment as the other internal dependencies are not relevant for a
paired fragment job.
Move the initialisation of a paired fragment job's done fence and CCCB
fence to pvr_queue_get_paired_frag_job_dep(), inferring the correct
queue from the fragment job itself.
This fixes cases where prepare_job() wrongly assumed that there was
enough space for a paired fragment job in its own CCCB, unblocking
run_job(), which then returned early without writing the full sequence
of commands to the CCCB.
The above lead to kernel warnings such as the following and potentially
job timeouts (depending on waiters on the missing commands):
[ 552.421075] WARNING: drivers/gpu/drm/imagination/pvr_cccb.c:178 at pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr], CPU#2: kworker/u16:5/63
[ 552.421230] Modules linked in:
[ 552.421592] CPU: 2 UID: 0 PID: 63 Comm: kworker/u16:5 Tainted: G W
7.0.0-rc2-gc5d053e4dccb #39 PREEMPT
[ 552.421625] Tainted: [W]=WARN
[ 552.421637] Hardware name: Texas Instruments AM625 SK (DT)
[ 552.421655] Workqueue: powervr-sched drm_sched_run_job_work [gpu_sched]
[ 552.421744] pstate:
80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 552.421766] pc : pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr]
[ 552.421850] lr : pvr_queue_submit_job_to_cccb+0x57c/0xa74 [powervr]
[ 552.421923] sp :
ffff800084c47650
[ 552.421936] x29:
ffff800084c47740 x28:
0000000000000df8 x27:
ffff800088a77000
[ 552.421979] x26:
0000000000000030 x25:
ffff800084c47680 x24:
0000000000001000
[ 552.422017] x23:
ffff800084c47820 x22:
1ffff00010988ecc x21:
0000000000000008
[ 552.422055] x20:
0000000000000208 x19:
ffff000006ad5a88 x18:
0000000000000000
[ 552.422093] x17:
0000000020020000 x16:
0000000000020000 x15:
0000000000000000
[ 552.422130] x14:
0000000000000000 x13:
0000000000000000 x12:
0000000000000000
[ 552.422167] x11:
000000000000f2f2 x10:
00000000f3000000 x9 :
00000000f3f3f3f3
[ 552.422204] x8 :
00000000f2f2f200 x7 :
ffff700010988ecc x6 :
0000000000000008
[ 552.422241] x5 :
0000000000000000 x4 :
1ffff0001114ee00 x3 :
0000000000000000
[ 552.422278] x2 :
0000000000000007 x1 :
0000000000000fff x0 :
000000000000002f
[ 552.422316] Call trace:
[ 552.422330] pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr] (P)
[ 552.422411] pvr_queue_submit_job_to_cccb+0x57c/0xa74 [powervr]
[ 552.422486] pvr_queue_run_job+0x3a4/0x990 [powervr]
[ 552.422562] drm_sched_run_job_work+0x580/0xd48 [gpu_sched]
[ 552.422623] process_one_work+0x520/0x1288
[ 552.422657] worker_thread+0x3f0/0xb3c
[ 552.422679] kthread+0x334/0x3d8
[ 552.422706] ret_from_fork+0x10/0x20
Fixes:
eaf01ee5ba28 ("drm/imagination: Implement job submission and scheduling")
Cc: stable@vger.kernel.org
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-2-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Alessio Belle [Mon, 30 Mar 2026 07:56:36 +0000 (08:56 +0100)]
drm/imagination: Count paired job fence as dependency in prepare_job()
The DRM scheduler's prepare_job() callback counts the remaining
non-signaled native dependencies for a job, preventing job submission
until those (plus job data and fence update) can fit in the job queue's
CCCB.
This means checking which dependencies can be waited upon in the
firmware, i.e. whether they are backed by a UFO object, i.e. whether
their drm_sched_fence::parent has been assigned to a
pvr_queue_fence::base fence. That happens when the job owning the fence
is submitted to the firmware.
Paired geometry and fragment jobs are submitted at the same time, which
means the dependency between them can't be checked this way before
submission.
Update job_count_remaining_native_deps() to take into account the
dependency between paired jobs.
This fixes cases where prepare_job() underestimated the space left in
an almost full fragment CCCB, wrongly unblocking run_job(), which then
returned early without writing the full sequence of commands to the
CCCB.
The above lead to kernel warnings such as the following and potentially
job timeouts (depending on waiters on the missing commands):
[ 375.702979] WARNING: drivers/gpu/drm/imagination/pvr_cccb.c:178 at pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr], CPU#1: kworker/u16:3/47
[ 375.703160] Modules linked in:
[ 375.703571] CPU: 1 UID: 0 PID: 47 Comm: kworker/u16:3 Tainted: G W
7.0.0-rc2-g817eb6b11ad5 #40 PREEMPT
[ 375.703613] Tainted: [W]=WARN
[ 375.703627] Hardware name: Texas Instruments AM625 SK (DT)
[ 375.703645] Workqueue: powervr-sched drm_sched_run_job_work [gpu_sched]
[ 375.703741] pstate:
80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 375.703764] pc : pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr]
[ 375.703847] lr : pvr_queue_submit_job_to_cccb+0x578/0xa70 [powervr]
[ 375.703921] sp :
ffff800084a97650
[ 375.703934] x29:
ffff800084a97740 x28:
0000000000000958 x27:
ffff80008565d000
[ 375.703979] x26:
0000000000000030 x25:
ffff800084a97680 x24:
0000000000001000
[ 375.704017] x23:
ffff800084a97820 x22:
1ffff00010952ecc x21:
0000000000000008
[ 375.704056] x20:
00000000000006a8 x19:
ffff00002ff7da88 x18:
0000000000000000
[ 375.704093] x17:
0000000020020000 x16:
0000000000020000 x15:
0000000000000000
[ 375.704132] x14:
0000000000000000 x13:
0000000000000000 x12:
0000000000000000
[ 375.704168] x11:
000000000000f2f2 x10:
00000000f3000000 x9 :
00000000f3f3f3f3
[ 375.704206] x8 :
00000000f2f2f200 x7 :
ffff700010952ecc x6 :
0000000000000008
[ 375.704243] x5 :
0000000000000000 x4 :
1ffff00010acba00 x3 :
0000000000000000
[ 375.704279] x2 :
0000000000000007 x1 :
0000000000000fff x0 :
000000000000002f
[ 375.704317] Call trace:
[ 375.704331] pvr_cccb_write_command_with_header+0x2c4/0x330 [powervr] (P)
[ 375.704411] pvr_queue_submit_job_to_cccb+0x578/0xa70 [powervr]
[ 375.704487] pvr_queue_run_job+0x3a4/0x990 [powervr]
[ 375.704562] drm_sched_run_job_work+0x580/0xd48 [gpu_sched]
[ 375.704623] process_one_work+0x520/0x1288
[ 375.704658] worker_thread+0x3f0/0xb3c
[ 375.704680] kthread+0x334/0x3d8
[ 375.704706] ret_from_fork+0x10/0x20
[ 375.704736] ---[ end trace
0000000000000000 ]---
Fixes:
eaf01ee5ba28 ("drm/imagination: Implement job submission and scheduling")
Cc: stable@vger.kernel.org
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com>
Link: https://patch.msgid.link/20260330-job-submission-fixes-cleanup-v1-1-7de8c09cef8c@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:07 +0000 (14:33 +0100)]
drm/ast: Fix open-coded scu_rev access
Replace all open-coded access to P2A and SCU registers in the device
detection with the appropriate calls to ast_moutdwm() and ast_mindwm().
Use P2A and MCR register constants. Name variables according to registers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-16-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:06 +0000 (14:33 +0100)]
drm/ast: dp501: Fix open-coded register access
Replace all open-coded access to SCU registers in DP501 support with
the appropriate calls to ast_moutdwm() and ast_mindwm(). Use SCU register
constants. Name variables according to registers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-15-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:05 +0000 (14:33 +0100)]
drm/ast: Gen6: Fix open-coded register access
Replace all open-coded access to MCR and SCU registers in Gen6 with
the appropriate calls to ast_moutdwm() and ast_mindwm(). Use MCR and
SCU register constants. Name variables according to registers.
v2:
- also fix MCR constants
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-14-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:04 +0000 (14:33 +0100)]
drm/ast: Gen4: Fix open-coded register access
Replace all open-coded access to MCR and SCU registers in Gen4 with the
appropriate calls to ast_moutdwm() and ast_mindwm(). Use MCR and SCU
register constants. Name variables according to registers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-13-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:03 +0000 (14:33 +0100)]
drm/ast: Gen2: Fix open-coded register access
Replace all open-coded access to MCR and SCU registers in Gen2 with the
appropriate calls to ast_moutdwm() and ast_mindwm(). Use MCR and SCU
register constants. Name variables according to registers.
The values in MCR04 that control VRAM allocation do not look correct.
Leave a FIXME comment for later investigation.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-12-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:02 +0000 (14:33 +0100)]
drm/ast: Gen1: Fix open-coded register access
Replace all open-coded access to MCR registers in Gen1 with the
appropriate calls to ast_moutdwm() and ast_mindwm(). Use MCR register
constants.
For the poll loop on MCR100, add ast_moutdwm_poll(). The helper polls
the register until it has been updated to the given value. Relax the
CPU while busy-waiting.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-11-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:01 +0000 (14:33 +0100)]
drm/ast: Store register addresses in struct ast_dramstruct
Struct ast_dramstruct contains a 16-bit index field that either
contains a magic value or serves as index into the P2A address
segment at 0x1e600000. This segment serves MCR and SCU registers,
which the ast_dramstruct programs. It's fragile and relies upon
the ast_post_chip_*() functions to set up the segment correctly.
Replace the 16-bit index with a full 32-bit address of the SCU
and MCR addresses. Initialize the DRAM tables with full register
constants and write them out with ast_moutdwm(). This sets the
correct segment on each write.
Drop __AST_DRAMSTRUCT_DRAM_TYPE as it simply referred to MCR04.
Use the latter for initializing the DRAM tables.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-10-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:33:00 +0000 (14:33 +0100)]
drm/ast: Use constants for SDRAM registers
Aspeed hardware allows for acceessing the SDRAM from the host. SDRAM
registers are located at the memory range at [0x80000000, 0xffffffff].
Refer to memory access with the macro AST_SDRAM(). Also add a TODO item
for the nonsensical documentation next to its caller.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-9-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:32:59 +0000 (14:32 +0100)]
drm/ast: Use constants for WDT registers
WDT is the Watchdog timer. WDC registers are located at the memory
range at [0x1e785000, 0x1e785fff]. There are currently up to 8
watchdog timers in the range, of which 2 are being used by AST2500.
Refer to them with macros named AST_REG_WDT<n>, where <n> is the byte
offset into the watchdog timer's memory range. Each macro also takes
the index of the watchdog timer to access. A new watchdog timer starts
at each 0x40 byte offset.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-8-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:32:58 +0000 (14:32 +0100)]
drm/ast: Use constants for A2P registers
A2P is the AHB-to-P Bridge. A2P registers are located at the memory
range at [0x1e720000, 0x1e73ffff]. Refer to them with constants named
AST_REG_A2P<n>, where <n> is the byte offset into the range.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-7-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:32:57 +0000 (14:32 +0100)]
drm/ast: Use constants for SCU registers
SCU is the System Control Unit. SCU registers are located in the memory
range at [0x1e6e2000, 0x1e6e2fff]. Refer to them with constants named
AST_REG_SCU<n>, where <n> is the byte offset into the range.
Replacing the magic values in the ast driver was done with grep and sed
as shown below
git grep -l \,\ 0x1e6e2 | xargs sed -i -e 's/, 0x1e6e2/, AST_REG_SCU/g'
git grep -l \,\ 0x1E6E2 | xargs sed -i -e 's/, 0x1E6E2/, AST_REG_SCU/g'
plus some manual fixes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-6-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:32:56 +0000 (14:32 +0100)]
drm/ast: Use constants for MCR registers
SDRAM registers are located in the memory range at
[0x1e160000, 0x1e160fff]. Refer to them with constants named
AST_REG_MCR<n>, where n is the byte offset into the range.
Replacing the magic values in the ast driver was done with grep
and sed as shown below
git grep -l \,\ 0x1e6e00 | xargs sed -i -e 's/, 0x1e6e00/, AST_REG_MCR/g'
git grep -l \,\ 0x1E6E00 | xargs sed -i -e 's/, 0x1E6E00/, AST_REG_MCR/g'
plus some manual fixes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-5-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:32:55 +0000 (14:32 +0100)]
drm/ast: Use constants for AHBC registers
AHBC is the Advanced High-Speed Bus Controller. AHBC registers are
located in the memory range within [0x1e600000, 0x1e61ffff]. Refer
to them with constants named AST_REG_AHBC<n>, where <n> is the byte
offset into the range.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-4-tzimmermann@suse.de
Thomas Zimmermann [Fri, 27 Mar 2026 13:32:54 +0000 (14:32 +0100)]
drm/ast: Move 32-bit register-access helpers to ast_drv.{c, h}
The helpers ast_mindwm() and ast_moutdwm() access the I/O memory of
the various IP modules on the Aspeed device. This is based on the
"P-Bus to AHB Bridge" interface.
Reimplement the access function with properly defined constants and
helper macros.
- Define P2A constants for the related registers and addresses. The P2A
interface is located in the memory range at [0x00000000, 0x00010000].
- Memory access is segmented. An address' upper 16-bit select the
memory segment, the lower 16-bit select the offset within the segment.
Implement segment selection in a shared helper __ast_segsel(). Validate
that the segment hs been changes. This logic has previously been part
of __ast_moudwm() and __ast_mindwm(). Relax the CPU while busy-waiting.
- Put intra-segment reads and writes in the helpers __ast_rdseg32()
and __ast_wrseg32(). The helpers set the segment offset automatically.
- Reimplement the existing interfaces on top of these helpers.
Put the new implementation next to the other I/O helpers.
v2:
- fix typo in commit description (Jocelyn)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patch.msgid.link/20260327133532.79696-3-tzimmermann@suse.de
Yicong Hui [Sun, 5 Apr 2026 19:23:09 +0000 (20:23 +0100)]
drm/panthor: Fix kernel-doc warning in panthor_sched.c
Fix the following W=1 kerneldoc warnings by adding the missing parameter
descriptions for @ptdev and @events in panthor_sched_report_fw_events()
and @ptdev in panthor_sched_report_mmu_fault()
Warning: drivers/gpu/drm/panthor/panthor_sched.c:1898 function parameter 'ptdev' not described in 'panthor_sched_report_fw_events'
Warning: drivers/gpu/drm/panthor/panthor_sched.c:1898 function parameter 'events' not described in 'panthor_sched_report_fw_events'
Warning: drivers/gpu/drm/panthor/panthor_sched.c:2783 function parameter 'ptdev' not described in 'panthor_sched_report_mmu_fault'
Fixes:
de8548813824 ("drm/panthor: Add the scheduler logical block")
Signed-off-by: Yicong Hui <yiconghui@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260405192309.389039-1-yiconghui@gmail.com
Thomas Zimmermann [Wed, 8 Apr 2026 08:09:43 +0000 (10:09 +0200)]
Merge drm/drm-next into drm-misc-next
Backmerging to get fixes from -rc7.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Dave Airlie [Tue, 24 Feb 2026 02:06:23 +0000 (12:06 +1000)]
ttm/pool: track allocated_pages per numa node.
This gets the memory sizes from the nodes and stores the limit
as 50% of those. I think eventually we should drop the limits
once we have memcg aware shrinking, but this should be more NUMA
friendly, and I think seems like what people would prefer to
happen on NUMA aware systems.
Cc: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 24 Feb 2026 02:06:22 +0000 (12:06 +1000)]
ttm/pool: make pool shrinker NUMA aware (v2)
This enable NUMA awareness for the shrinker on the
ttm pools.
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 24 Feb 2026 02:06:21 +0000 (12:06 +1000)]
ttm/pool: drop numa specific pools
The list_lru will now handle numa for us, so no need to keep
separate pool types for it. Just consolidate into the global ones.
This adds a debugfs change to avoid dumping non-existant orders due
to this change.
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 24 Feb 2026 02:06:20 +0000 (12:06 +1000)]
ttm/pool: port to list_lru. (v2)
This is an initial port of the TTM pools for
write combined and uncached pages to use the list_lru.
This makes the pool's more NUMA aware and avoids
needing separate NUMA pools (later commit enables this).
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 24 Feb 2026 02:06:19 +0000 (12:06 +1000)]
drm/ttm: use gpu mm stats to track gpu memory allocations. (v4)
This uses the newly introduced per-node gpu tracking stats,
to track GPU memory allocated via TTM and reclaimable memory in
the TTM page pools.
These stats will be useful later for system information and
later when mem cgroups are integrated.
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Tue, 24 Feb 2026 02:06:18 +0000 (12:06 +1000)]
mm: add gpu active/reclaim per-node stat counters (v2)
While discussing memcg intergration with gpu memory allocations,
it was pointed out that there was no numa/system counters for
GPU memory allocations.
With more integrated memory GPU server systems turning up, and
more requirements for memory tracking it seems we should start
closing the gap.
Add two counters to track GPU per-node system memory allocations.
The first is currently allocated to GPU objects, and the second
is for memory that is stored in GPU page pools that can be reclaimed,
by the shrinker.
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Max Zhen [Mon, 6 Apr 2026 21:14:03 +0000 (14:14 -0700)]
accel/amdxdna: Handle DETACH_DEBUG_BO through config_debug_bo path
Route DETACH_DEBUG_BO through aie2_config_debug_bo() the same way as
ATTACH_DEBUG_BO.
The scheduler switch in aie2_sched_job_run() already handles
ATTACH_DEBUG_BO with aie2_config_debug_bo(), but DETACH_DEBUG_BO was
not included in that path. Add an explicit fallthrough so both attach
and detach operations use the same handler.
This fixes debug BO detach handling by ensuring the detach command is
processed by the expected configuration path.
Fixes:
7ea046838021 ("accel/amdxdna: Support firmware debug buffer")
Signed-off-by: Max Zhen <max.zhen@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260406211403.4011988-1-lizhi.hou@amd.com
Simona Vetter [Tue, 7 Apr 2026 10:27:36 +0000 (12:27 +0200)]
Merge v7.0-rc7 into drm-next
Thomas Zimmermann needs
2f42c1a61616 ("drm/ast: dp501: Fix
initialization of SCU2C") for drm-misc-next.
Conflicts:
- drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
Just between
e927b36ae18b ("drm/amd/display: Fix NULL pointer
dereference in dcn401_init_hw()") and it's cherry-pick that confused
git.
- drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
Deleted in
6b0a6116286e ("drm/amd/pm: Unify version check in SMUv11")
but some cherry-picks confused git. Same for v12/v14.
Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
Linus Torvalds [Sun, 5 Apr 2026 22:26:23 +0000 (15:26 -0700)]
Linux 7.0-rc7
Linus Torvalds [Sun, 5 Apr 2026 21:43:47 +0000 (14:43 -0700)]
Merge tag 'riscv-for-linus-7.0-rc7' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Fix a CONFIG_SPARSEMEM crash on RV32 by avoiding early phys_to_page()
- Prevent runtime const infrastructure from being used by modules,
similar to what was done for x86
- Avoid problems when shutting down ACPI systems with IOMMUs by adding
a device dependency between IOMMU and devices that use it
- Fix a bug where the CPU pointer masking state isn't properly reset
when tagged addresses aren't enabled for a task
- Fix some incorrect register assignments, and add some missing ones,
in kgdb support code
- Fix compilation of non-kernel code that uses the ptrace uapi header
by replacing BIT() with _BITUL()
- Fix compilation of the validate_v_ptrace kselftest by working around
kselftest macro expansion issues
* tag 'riscv-for-linus-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
ACPI: RIMT: Add dependency between iommu and devices
selftests: riscv: Add braces around EXPECT_EQ()
riscv: use _BITUL macro rather than BIT() in ptrace uapi and kselftests
riscv: Reset pmm when PR_TAGGED_ADDR_ENABLE is not set
riscv: make runtime const not usable by modules
riscv: patch: Avoid early phys_to_page()
riscv: kgdb: fix several debug register assignment bugs
Linus Torvalds [Sun, 5 Apr 2026 20:53:07 +0000 (13:53 -0700)]
Merge tag 'x86-urgent-2026-04-05' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix kexec crash on KCOV-instrumented kernels (Aleksandr Nogikh)
- Fix Geode platform driver on-stack property data use-after-return
bug (Dmitry Torokhov)
* tag 'x86-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/geode: Fix on-stack property data use-after-return bug
x86/kexec: Disable KCOV instrumentation after load_segments()
Linus Torvalds [Sun, 5 Apr 2026 20:45:37 +0000 (13:45 -0700)]
Merge tag 'sched-urgent-2026-04-05' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix zero_vruntime tracking again (Peter Zijlstra)
- Fix avg_vruntime() usage in sched_debug (Peter Zijlstra)
* tag 'sched-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/debug: Fix avg_vruntime() usage
sched/fair: Fix zero_vruntime tracking fix
Linus Torvalds [Sun, 5 Apr 2026 20:43:26 +0000 (13:43 -0700)]
Merge tag 'perf-urgent-2026-04-05' of git://git./linux/kernel/git/tip/tip
Pull perf fix from Ingo Molnar:
- Fix potential bad container_of() in intel_pmu_hw_config() (Ian
Rogers)
* tag 'perf-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Fix potential bad container_of in intel_pmu_hw_config
Linus Torvalds [Sun, 5 Apr 2026 20:40:58 +0000 (13:40 -0700)]
Merge tag 'irq-urgent-2026-04-05' of git://git./linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
- Fix RISC-V APLIC irqchip driver setup errors on ACPI systems (Jessica
Liu)
* tag 'irq-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/riscv-aplic: Restrict genpd notifier to device tree only
Linus Torvalds [Sun, 5 Apr 2026 19:42:25 +0000 (12:42 -0700)]
i915: don't use a vma that didn't match the context VM
In eb_lookup_vma(), the code checks that the context vm matches before
incrementing the i915 vma usage count, but for the non-matching case it
didn't clear the non-matching vma pointer, so it would then mistakenly
be returned, causing potential UaF and refcount issues.
Reported-by: Yassine Mounir <sosohero200@gmail.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 5 Apr 2026 18:29:07 +0000 (11:29 -0700)]
Merge tag 'mips-fixes_7.0_1' of git://git./linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- Fix TLB uniquification for systems with TLB not initialised by
firmware
- Fix allocation in TLB uniquification
- Fix SiByte cache initialisation
- Check uart parameters from firmware on Loongson64 systems
- Fix clock id mismatch for Ralink SoCs
- Fix GCC version check for __mutli3 workaround
* tag 'mips-fixes_7.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
mips: mm: Allocate tlb_vpn array atomically
MIPS: mm: Rewrite TLB uniquification for the hidden bit feature
MIPS: mm: Suppress TLB uniquification on EHINV hardware
MIPS: Always record SEGBITS in cpu_data.vmbits
MIPS: Fix the GCC version check for `__multi3' workaround
MIPS: SiByte: Bring back cache initialisation
mips: ralink: update CPU clock index
MIPS: Loongson64: env: Check UARTs passed by LEFI cautiously
Linus Torvalds [Sun, 5 Apr 2026 17:09:33 +0000 (10:09 -0700)]
Merge tag 'char-misc-7.0-rc7' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc/iio driver fixes from Greg KH:
"Here are a relativly large number of small char/misc/iio and other
driver fixes for 7.0-rc7. There's a bunch, but overall they are all
small fixes for issues that people have been having that I finally
caught up with getting merged due to delays on my end.
The "largest" change overall is just some documentation updates to the
security-bugs.rst file to hopefully tell the AI tools (and any users
that actually read the documentation), how to send us better security
bug reports as the quantity of reports these past few weeks has
increased dramatically due to tools getting better at "finding"
things.
Included in here are:
- lots of small IIO driver fixes for issues reported in 7.0-rc
- gpib driver fixes
- comedi driver fixes
- interconnect driver fix
- nvmem driver fixes
- mei driver fix
- counter driver fix
- binder rust driver fixes
- some other small misc driver fixes
All of these have been in linux-next this week with no reported issues"
* tag 'char-misc-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (63 commits)
Documentation: fix two typos in latest update to the security report howto
Documentation: clarify the mandatory and desirable info for security reports
Documentation: explain how to find maintainers addresses for security reports
Documentation: minor updates to the security contacts
.get_maintainer.ignore: add myself
nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy
nvmem: imx: assign nvmem_cell_info::raw_len
misc: fastrpc: check qcom_scm_assign_mem() return in rpmsg_probe
misc: fastrpc: possible double-free of cctx->remote_heap
comedi: dt2815: add hardware detection to prevent crash
comedi: runflags cannot determine whether to reclaim chanlist
comedi: Reinit dev->spinlock between attachments to low-level drivers
comedi: me_daq: Fix potential overrun of firmware buffer
comedi: me4000: Fix potential overrun of firmware buffer
comedi: ni_atmio16d: Fix invalid clean-up after failed attach
gpib: fix use-after-free in IO ioctl handlers
gpib: lpvo_usb: fix memory leak on disconnect
gpib: Fix fluke driver s390 compile issue
lis3lv02d: Omit IRQF_ONESHOT if no threaded handler is provided
lis3lv02d: fix kernel-doc warnings
...
Linus Torvalds [Sun, 5 Apr 2026 17:04:28 +0000 (10:04 -0700)]
Merge tag 'tty-7.0-rc7' of git://git./linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are two small tty vt fixes for 7.0-rc7 to resolve some reported
issues with the resize ability of the alt screen buffer. Both of these
have been in linux-next all week with no reported issues"
* tag 'tty-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: resize saved unicode buffer on alt screen exit after resize
vt: discard stale unicode buffer on alt screen exit after resize
Linus Torvalds [Sun, 5 Apr 2026 17:00:26 +0000 (10:00 -0700)]
Merge tag 'usb-7.0-rc7' of git://git./linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are a bunch of USB and Thunderbolt fixes (most all are USB) for
7.0-rc7. More than I normally like this late in the release cycle,
partly due to my recent travels, and partly due to people banging away
on the USB gadget interfaces and apis more than normal (big shoutout
to Android for getting the vendors to actually work upstream on this,
that's a huge win overall for everyone here)
Included in here are:
- Small thunderbolt fix
- new USB serial driver ids added
- typec driver fixes
- gadget driver fixes for some disconnect issues
- other usb gadget driver fixes for reported problems with binding
and unbinding devices as happens when a gadget device connects /
disconnects from a system it is plugged into (or it switches device
mode at a user's request, these things are complex little
beasts...)
- usb offload fixes (where USB audio tunnels through the controller
while the main CPU is asleep) for when EMP spikes hit the system
causing disconnects to happen (as often happens with static
electricity in the winter months). This has been much reported by
at least one vendor, and resolves the issues they have been seeing
with this codepath. Can't wait for the "formal methods are the
answer!" people to try to model that one properly...
- Other small usb driver fixes for issues reported.
All of these have been in linux-next this week, and before, with no
reported issues, and I've personally been stressing these harder than
normal on my systems here with no problems"
* tag 'usb-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (39 commits)
usb: gadget: f_hid: move list and spinlock inits from bind to alloc
usb: host: xhci-sideband: delegate offload_usage tracking to class drivers
usb: core: use dedicated spinlock for offload state
usb: cdns3: gadget: fix state inconsistency on gadget init failure
usb: dwc3: imx8mp: fix memory leak on probe failure path
usb: gadget: f_uac1_legacy: validate control request size
usb: ulpi: fix double free in ulpi_register_interface() error path
usb: misc: usbio: Fix URB memory leak on submit failure
USB: core: add NO_LPM quirk for Razer Kiyo Pro webcam
usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
usb: core: phy: avoid double use of 'usb3-phy'
USB: serial: option: add MeiG Smart SRM825WN
usb: gadget: f_rndis: Fix net_device lifecycle with device_move
usb: gadget: f_subset: Fix net_device lifecycle with device_move
usb: gadget: f_eem: Fix net_device lifecycle with device_move
usb: gadget: f_ecm: Fix net_device lifecycle with device_move
usb: gadget: u_ncm: Add kernel-doc comments for struct f_ncm_opts
usb: gadget: f_rndis: Protect RNDIS options with mutex
usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
dt-bindings: connector: add pd-disable dependency
...
Simon Ser [Fri, 27 Mar 2026 17:18:29 +0000 (17:18 +0000)]
drm/doc: document DRM_IOCTL_SYNCOBJ_EVENTFD
struct drm_syncobj_eventfd was documented, but
DRM_IOCTL_SYNCOBJ_EVENTFD was not. This prevents references to this
define from being properly linkified in docs.
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Michel Dänzer <michel.daenzer@mailbox.org>
Link: https://patch.msgid.link/20260327171812.128290-1-contact@emersion.fr
Sunil V L [Tue, 3 Mar 2026 06:16:05 +0000 (11:46 +0530)]
ACPI: RIMT: Add dependency between iommu and devices
EPROBE_DEFER ensures IOMMU devices are probed before the devices that
depend on them. During shutdown, however, the IOMMU may be removed
first, leading to issues. To avoid this, a device link is added
which enforces the correct removal order.
Fixes:
8f7729552582 ("ACPI: RISC-V: Add support for RIMT")
Signed-off-by: Sunil V L <sunilvl@oss.qualcomm.com>
Link: https://patch.msgid.link/20260303061605.722949-1-sunilvl@oss.qualcomm.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Charlie Jenkins [Tue, 10 Mar 2026 01:52:11 +0000 (18:52 -0700)]
selftests: riscv: Add braces around EXPECT_EQ()
EXPECT_EQ() expands to multiple lines, breaking up one-line if
statements. This issue was not present in the patch on the mailing list
but was instead introduced by the maintainer when attempting to fix up
checkpatch warnings. Add braces around EXPECT_EQ() to avoid the error
even though checkpatch suggests them to be removed:
validate_v_ptrace.c:626:17: error: ‘else’ without a previous ‘if’
Fixes:
3789d5eecd5a ("selftests: riscv: verify syscalls discard vector context")
Fixes:
30eb191c895b ("selftests: riscv: verify ptrace rejects invalid vector csr inputs")
Fixes:
849f05ae1ea6 ("selftests: riscv: verify ptrace accepts valid vector csr values")
Signed-off-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Reviewed-and-tested-by: Sergey Matyukevich <geomatsi@gmail.com>
Link: https://patch.msgid.link/20260309-fix_selftests-v2-2-9d5a553a531e@gmail.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Paul Walmsley [Thu, 2 Apr 2026 23:18:03 +0000 (17:18 -0600)]
riscv: use _BITUL macro rather than BIT() in ptrace uapi and kselftests
Fix the build of non-kernel code that includes the RISC-V ptrace uapi
header, and the RISC-V validate_v_ptrace.c kselftest, by using the
_BITUL() macro rather than BIT(). BIT() is not available outside
the kernel.
Based on patches and comments from Charlie Jenkins, Michael Neuling,
and Andreas Schwab.
Fixes:
30eb191c895b ("selftests: riscv: verify ptrace rejects invalid vector csr inputs")
Fixes:
2af7c9cf021c ("riscv/ptrace: expose riscv CFI status and state via ptrace and in core files")
Cc: Andreas Schwab <schwab@suse.de>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Charlie Jenkins <thecharlesjenkins@gmail.com>
Link: https://patch.msgid.link/20260330024248.449292-1-mikey@neuling.org
Link: https://lore.kernel.org/linux-riscv/20260309-fix_selftests-v2-1-9d5a553a531e@gmail.com/
Link: https://lore.kernel.org/linux-riscv/20260309-fix_selftests-v2-3-9d5a553a531e@gmail.com/
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Zishun Yi [Sun, 22 Mar 2026 16:00:22 +0000 (00:00 +0800)]
riscv: Reset pmm when PR_TAGGED_ADDR_ENABLE is not set
In set_tagged_addr_ctrl(), when PR_TAGGED_ADDR_ENABLE is not set, pmlen
is correctly set to 0, but it forgets to reset pmm. This results in the
CPU pmm state not corresponding to the software pmlen state.
Fix this by resetting pmm along with pmlen.
Fixes:
2e1743085887 ("riscv: Add support for the tagged address ABI")
Signed-off-by: Zishun Yi <vulab@iscas.ac.cn>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://patch.msgid.link/20260322160022.21908-1-vulab@iscas.ac.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Jisheng Zhang [Sat, 21 Feb 2026 02:37:31 +0000 (10:37 +0800)]
riscv: make runtime const not usable by modules
Similar as commit
284922f4c563 ("x86: uaccess: don't use runtime-const
rewriting in modules") does, make riscv's runtime const not usable by
modules too, to "make sure this doesn't get forgotten the next time
somebody wants to do runtime constant optimizations". The reason is
well explained in the above commit: "The runtime-const infrastructure
was never designed to handle the modular case, because the constant
fixup is only done at boot time for core kernel code."
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://patch.msgid.link/20260221023731.3476-1-jszhang@kernel.org
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Vivian Wang [Mon, 23 Mar 2026 23:43:47 +0000 (17:43 -0600)]
riscv: patch: Avoid early phys_to_page()
Similarly to commit
8d09e2d569f6 ("arm64: patching: avoid early
page_to_phys()"), avoid using phys_to_page() for the kernel address case
in patch_map().
Since this is called from apply_boot_alternatives() in setup_arch(), and
commit
4267739cabb8 ("arch, mm: consolidate initialization of SPARSE
memory model") has moved sparse_init() to after setup_arch(),
phys_to_page() is not available there yet, and it panics on boot with
SPARSEMEM on RV32, which does not use SPARSEMEM_VMEMMAP.
Reported-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Closes: https://lore.kernel.org/r/
20260223144108-
dcace0b9-02e8-4b67-a7ce-
f263bed36f26@linutronix.de/
Fixes:
4267739cabb8 ("arch, mm: consolidate initialization of SPARSE memory model")
Suggested-by: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Tested-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20260310-riscv-sparsemem-alternatives-fix-v1-1-659d5dd257e2@iscas.ac.cn
[pjw@kernel.org: fix the subject line to align with the patch description]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Paul Walmsley [Mon, 23 Mar 2026 23:43:47 +0000 (17:43 -0600)]
riscv: kgdb: fix several debug register assignment bugs
Fix several bugs in the RISC-V kgdb implementation:
- The element of dbg_reg_def[] that is supposed to pertain to the S1
register embeds instead the struct pt_regs offset of the A1
register. Fix this to use the S1 register offset in struct pt_regs.
- The sleeping_thread_to_gdb_regs() function copies the value of the
S10 register into the gdb_regs[] array element meant for the S9
register, and copies the value of the S11 register into the array
element meant for the S10 register. It also neglects to copy the
value of the S11 register. Fix all of these issues.
Fixes:
fe89bd2be8667 ("riscv: Add KGDB support")
Cc: Vincent Chen <vincent.chen@sifive.com>
Link: https://patch.msgid.link/fde376f8-bcfd-bfe4-e467-07d8f7608d05@kernel.org
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Linus Torvalds [Sat, 4 Apr 2026 15:24:32 +0000 (08:24 -0700)]
Merge tag 'input-for-v7.0-rc6' of git://git./linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- new IDs for BETOP BTP-KP50B/C and Razer Wolverine V3 Pro added to
xpad controller driver
- another quirk for new TUXEDO InfinityBook added to i8042
- a small fixup for Synaptics RMI4 driver to properly unlock mutex when
encountering an error in F54
- an update to bcm5974 touch controller driver to reliably switch into
wellspring mode
* tag 'input-for-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless mode
Input: xpad - add support for Razer Wolverine V3 Pro
Input: synaptics-rmi4 - fix a locking bug in an error path
Input: i8042 - add TUXEDO InfinityBook Max 16 Gen10 AMD to i8042 quirk table
Input: bcm5974 - recover from failed mode switch
MaÃra Canal [Tue, 31 Mar 2026 12:35:53 +0000 (09:35 -0300)]
drm/v3d: Introduce Runtime Power Management
Commit
90a64adb0876 ("drm/v3d: Get rid of pm code") removed the last
bits of power management code that V3D had, which were actually never
hooked. Therefore, currently, the GPU clock is enabled during probe
and only disabled when removing the driver.
Implement proper power management using the kernel's Runtime PM
framework.
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20260331-v3d-power-management-v9-3-f52ff87bfd36@igalia.com
Signed-off-by: MaÃra Canal <mcanal@igalia.com>
MaÃra Canal [Tue, 31 Mar 2026 12:35:52 +0000 (09:35 -0300)]
drm/v3d: Allocate all resources before enabling the clock
Move all resource allocation operations before actually enabling the
clock, as those operations don't require the GPU to be powered on.
This is a preparation for runtime PM support. The next commit will
move all code related to powering on and initiating the GPU into the
runtime PM resume callback and all resource allocation will happen
before resume().
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20260331-v3d-power-management-v9-2-f52ff87bfd36@igalia.com
Signed-off-by: MaÃra Canal <mcanal@igalia.com>
MaÃra Canal [Tue, 31 Mar 2026 12:35:51 +0000 (09:35 -0300)]
drm/v3d: Use devm_reset_control_get_optional_exclusive()
Simplify optional reset handling by using the function
devm_reset_control_get_optional_exclusive().
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20260331-v3d-power-management-v9-1-f52ff87bfd36@igalia.com
Signed-off-by: MaÃra Canal <mcanal@igalia.com>
Willy Tarreau [Sat, 4 Apr 2026 08:20:33 +0000 (10:20 +0200)]
Documentation: fix two typos in latest update to the security report howto
In previous patch "Documentation: clarify the mandatory and desirable
info for security reports" I left two typos that I didn't detect in local
checks. One is "get_maintainers.pl" (no 's' in the script name), and the
other one is a missing closing quote after "Reported-by", which didn't
have effect here but I don't know if it can break rendering elsewhere
(e.g. on the public HTML page). Better fix it before it gets merged.
Signed-off-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260404082033.5160-1-w@1wt.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shengyu Qu [Sat, 4 Apr 2026 05:07:28 +0000 (22:07 -0700)]
Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless mode
BETOP's BTP-KP50B and BTP-KP50C controller's wireless dongles are both
working as standard Xbox 360 controllers. Add USB device IDs for them to
xpad driver.
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Link: https://patch.msgid.link/TY4PR01MB14432B4B298EA186E5F86C46B9855A@TY4PR01MB14432.jpnprd01.prod.outlook.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Zoltan Illes [Sat, 4 Apr 2026 05:03:42 +0000 (22:03 -0700)]
Input: xpad - add support for Razer Wolverine V3 Pro
Add device IDs for the Razer Wolverine V3 Pro controller in both
wired (0x0a57) and wireless 2.4 GHz dongle (0x0a59) modes.
The controller uses the Xbox 360 protocol (vendor-specific class,
subclass 93, protocol 1) on interface 0 with an identical 20-byte
input report layout, so no additional processing is needed.
Signed-off-by: Zoltan Illes <zoliviragh@gmail.com>
Link: https://patch.msgid.link/20260329220031.1325509-1-137647604+ZlordHUN@users.noreply.github.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Linus Torvalds [Sat, 4 Apr 2026 03:08:25 +0000 (20:08 -0700)]
Merge tag 'powerpc-7.0-4' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fix from Madhavan Srinivasan:
- fix iommu incorrectly bypassing DMA APIs
Thanks to Dan Horak, Gaurav Batra, and Ritesh Harjani (IBM).
* tag 'powerpc-7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv/iommu: iommu incorrectly bypass DMA APIs
Linus Torvalds [Sat, 4 Apr 2026 00:50:24 +0000 (17:50 -0700)]
Merge tag 's390-7.0-7' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix a memory leak in the zcrypt driver where the AP message buffer
for clear key RSA requests was allocated twice, once by the caller
and again locally, causing the first allocation to never be freed
- Fix the cpum_sf perf sampling rate overflow adjustment to clamp the
recalculated rate to the hardware maximum, preventing exceptions on
heavily loaded systems running with HZ=1000
* tag 's390-7.0-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/zcrypt: Fix memory leak with CCA cards used as accelerator
s390/cpum_sf: Cap sampling rate to prevent lsctl exception
Linus Torvalds [Sat, 4 Apr 2026 00:13:59 +0000 (17:13 -0700)]
Merge tag 'hwmon-for-v7.0-rc7' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix temperature sensor for PRIME X670E-PRO WIFI
- occ: Add missing newline, and fix potential division by zero
- pmbus:
- Fix device ID comparison and printing in tps53676_identify()
- Add missing MODULE_IMPORT_NS("PMBUS") for ltc4286
- Check return value of page-select write in pxe1610 probe
- Fix array access with zero-length block tps53679 read
* tag 'hwmon-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (asus-ec-sensors) Fix T_Sensor for PRIME X670E-PRO WIFI
hwmon: (occ) Fix missing newline in occ_show_extended()
hwmon: (occ) Fix division by zero in occ_show_power_1()
hwmon: (tps53679) Fix device ID comparison and printing in tps53676_identify()
hwmon: (ltc4286) Add missing MODULE_IMPORT_NS("PMBUS")
hwmon: (pxe1610) Check return value of page-select write in probe
hwmon: (tps53679) Fix array access with zero-length block read
Linus Torvalds [Fri, 3 Apr 2026 19:05:06 +0000 (12:05 -0700)]
Merge tag 'sched_ext-for-7.0-rc6-fixes-2' of git://git./linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
"These are late but both fix subtle yet critical problems and the blast
radius is limited strictly to sched_ext.
- Fix stale direct dispatch state in ddsp_dsq_id which can cause
spurious warnings in mark_direct_dispatch() on task wakeup
- Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
configs which can lead to incorrectly dispatching migration-
disabled tasks to remote CPUs"
* tag 'sched_ext-for-7.0-rc6-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Fix stale direct dispatch state in ddsp_dsq_id
sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
Linus Torvalds [Fri, 3 Apr 2026 18:58:04 +0000 (11:58 -0700)]
Merge tag 'io_uring-7.0-
20260403' of git://git./linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- A previous fix in this release covered the case of the rings being
RCU protected during resize, but it missed a few spots. This covers
the rest
- Fix the cBPF filters when COW'ed, introduced in this merge window
- Fix for an attempt to import a zero sized buffer
- Fix for a missing clamp in importing bundle buffers
* tag 'io_uring-7.0-
20260403' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/bpf_filters: retain COW'ed settings on parse failures
io_uring: protect remaining lockless ctx->rings accesses with RCU
io_uring/rsrc: reject zero-length fixed buffer import
io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs()
Lizhi Hou [Thu, 2 Apr 2026 17:41:48 +0000 (10:41 -0700)]
accel/amdxdna: Adjust size for copy_to_user()
The amount of data returned to user space should be limited by the buffer
size provided by the application. If the buffer is smaller than the data
size, return only the portion that fits instead of failing.
Fixes:
850d71f6bf4c ("accel/amdxdna: Add query functions")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260402174148.3527757-1-lizhi.hou@amd.com
Linus Torvalds [Fri, 3 Apr 2026 17:19:52 +0000 (10:19 -0700)]
Merge tag 'spi-fix-v7.0-rc6' of git://git./linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of fixes, mostly probe/remove issues that are the
result of Felix Gu going and auditing those areas, plus one error
handling fix for the Cadence QSPI driver"
* tag 'spi-fix-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: cadence-qspi: Fix exec_mem_op error handling
spi: amlogic: spifc-a4: unregister ECC engine on probe failure and remove() callback
spi: stm32-ospi: Fix DMA channel leak on stm32_ospi_dma_setup() failure
spi: stm32-ospi: Fix reset control leak on probe error
spi: stm32-ospi: Fix resource leak in remove() callback
Andrea Righi [Fri, 3 Apr 2026 06:57:20 +0000 (08:57 +0200)]
sched_ext: Fix stale direct dispatch state in ddsp_dsq_id
@p->scx.ddsp_dsq_id can be left set (non-SCX_DSQ_INVALID) triggering a
spurious warning in mark_direct_dispatch() when the next wakeup's
ops.select_cpu() calls scx_bpf_dsq_insert(), such as:
WARNING: kernel/sched/ext.c:1273 at scx_dsq_insert_commit+0xcd/0x140
The root cause is that ddsp_dsq_id was only cleared in dispatch_enqueue(),
which is not reached in all paths that consume or cancel a direct dispatch
verdict.
Fix it by clearing it at the right places:
- direct_dispatch(): cache the direct dispatch state in local variables
and clear it before dispatch_enqueue() on the synchronous path. For
the deferred path, the direct dispatch state must remain set until
process_ddsp_deferred_locals() consumes them.
- process_ddsp_deferred_locals(): cache the dispatch state in local
variables and clear it before calling dispatch_to_local_dsq(), which
may migrate the task to another rq.
- do_enqueue_task(): clear the dispatch state on the enqueue path
(local/global/bypass fallbacks), where the direct dispatch verdict is
ignored.
- dequeue_task_scx(): clear the dispatch state after dispatch_dequeue()
to handle both the deferred dispatch cancellation and the holding_cpu
race, covering all cases where a pending direct dispatch is
cancelled.
- scx_disable_task(): clear the direct dispatch state when
transitioning a task out of the current scheduler. Waking tasks may
have had the direct dispatch state set by the outgoing scheduler's
ops.select_cpu() and then been queued on a wake_list via
ttwu_queue_wakelist(), when SCX_OPS_ALLOW_QUEUED_WAKEUP is set. Such
tasks are not on the runqueue and are not iterated by scx_bypass(),
so their direct dispatch state won't be cleared. Without this clear,
any subsequent SCX scheduler that tries to direct dispatch the task
will trigger the WARN_ON_ONCE() in mark_direct_dispatch().
Fixes:
5b26f7b920f7 ("sched_ext: Allow SCX_DSQ_LOCAL_ON for direct dispatches")
Cc: stable@vger.kernel.org # v6.12+
Cc: Daniel Hodges <hodgesd@meta.com>
Cc: Patrick Somaru <patsomaru@meta.com>
Signed-off-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Linus Torvalds [Fri, 3 Apr 2026 16:56:32 +0000 (09:56 -0700)]
Merge tag 'pm-7.0-rc7' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a potential NULL pointer dereference in the energy model
netlink interface and a potential double free in an error path in
the common cpufreq governor management code:
- Fix a NULL pointer dereference in the energy model netlink
interface that may occur if a given perf domain ID is not
recognized (Changwoo Min)
- Avoid double free in the cpufreq_dbs_governor_init() error
path when kobject_init_and_add() fails (Guangshuo Li)"
* tag 'pm-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path
PM: EM: Fix NULL pointer dereference when perf domain ID is not found
Linus Torvalds [Fri, 3 Apr 2026 16:49:06 +0000 (09:49 -0700)]
Merge tag 'thermal-7.0-rc7' of git://git./linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Address potential races between thermal zone removal and system
resume that may lead to a use-after-free (in two different ways)
and a potential use-after-free in the thermal zone unregistration
path (Rafael Wysocki)"
* tag 'thermal-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Fix thermal zone device registration error path
thermal: core: Address thermal zone removal races with resume
Linus Torvalds [Fri, 3 Apr 2026 16:33:38 +0000 (09:33 -0700)]
Merge tag 'gpio-fixes-for-v7.0-rc7' of git://git./linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix kerneldocs for gpio-timberdale and gpio-nomadik
- clear the "requested" flag in error path in gpiod_request_commit()
- call of_xlate() if provided when setting up shared GPIOs
- handle pins shared by child firmware nodes of consumer devices
- fix return value check in gpio-qixis-fpga
- fix suspend on gpio-mxc
- fix gpio-microchip DT bindings
* tag 'gpio-fixes-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
dt-bindings: gpio: fix microchip #interrupt-cells
gpio: shared: shorten the critical section in gpiochip_setup_shared()
gpio: mxc: map Both Edge pad wakeup to Rising Edge
gpio: qixis-fpga: Fix error handling for devm_regmap_init_mmio()
gpio: shared: handle pins shared by child nodes of devices
gpio: shared: call gpio_chip::of_xlate() if set
gpiolib: clear requested flag if line is invalid
gpio: nomadik: repair some kernel-doc comments
gpio: timberdale: repair kernel-doc comments
gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()
Linus Torvalds [Fri, 3 Apr 2026 15:47:13 +0000 (08:47 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
- Implement a basic static call trampoline to fix CFI failures with the
generic implementation
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Use static call trampolines when kCFI is enabled
Linus Torvalds [Fri, 3 Apr 2026 15:23:51 +0000 (08:23 -0700)]
Merge tag 'drm-fixes-2026-04-03' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Hopefully no Easter eggs in this bunch of fixes. Usual stuff across
the amd/intel with some misc bits. Thanks to Thorsten and Alex for
making sure a regression fix that was hanging around in process land
finally made it in, that is probably the biggest change in here.
core:
- revert unplug/framebuffer fix as it caused problems
- compat ioctl speculation fix
bridge:
- refcounting fix
sysfb:
- error handling fix
amdgpu:
- fix renoir audio regression
- UserQ fixes
- PASID handling fix
- S4 fix for smu11 chips
- Misc small fixes
amdkfd:
- Non-4K page fixes
i915:
- Fix for #12045: Huawei Matebook E (DRR-WXX): Persistent Black
Screen on Boot with i915 and Gen11: Modesetting and Backlight
Control Malfunction
- Fix for #15826: i915: Raptor Lake-P [UHD Graphics] display
flicker/corruption on eDP panel
- Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
xe:
- uapi: Accept canonical GPU addresses in xe_vm_madvise_ioctl
- Disallow writes to read-only VMAs
- PXP fixes
- Disable garbage collector work item on SVM close
- void memory allocations in xe_device_declare_wedged
qaic:
- hang fix
ast:
- initialisation fix"
* tag 'drm-fixes-2026-04-03' of https://gitlab.freedesktop.org/drm/kernel: (28 commits)
drm/amd/display: Wire up dcn10_dio_construct() for all pre-DCN401 generations
drm/ioc32: stop speculation on the drm_compat_ioctl path
drm/sysfb: Fix efidrm error handling and memory type mismatch
drm/i915/dp: Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
drm/i915/cdclk: Do the full CDCLK dance for min_voltage_level changes
drm/amdkfd: Fix queue preemption/eviction failures by aligning control stack size to GPU page size
drm/amdgpu: Fix wait after reset sequence in S4
drm/amd/display: Fix NULL pointer dereference in dcn401_init_hw()
drm/amdgpu: Change AMDGPU_VA_RESERVED_TRAP_SIZE to 64KB
drm/amdgpu/userq: fix memory leak in MQD creation error paths
drm/amd: Fix MQD and control stack alignment for non-4K
drm/amdkfd: Align expected_queue_size to PAGE_SIZE
drm/amdgpu: fix the idr allocation flags
drm/amdgpu: validate doorbell_offset in user queue creation
drm/amdgpu/pm: drop SMU driver if version not matched messages
drm/xe: Avoid memory allocations in xe_device_declare_wedged()
drm/xe: Disable garbage collector work item on SVM close
drm/xe/pxp: Don't allow PXP on older PTL GSC FWs
drm/xe/pxp: Clear restart flag in pxp_start after jumping back
drm/xe/pxp: Remove incorrect handling of impossible state during suspend
...
Rafael J. Wysocki [Fri, 3 Apr 2026 12:15:06 +0000 (14:15 +0200)]
Merge branch 'pm-em'
Fix a NULL pointer dereference in the energy model netlink interface
that may occur if a given perf domain ID is not recognized (Changwoo Min).
* pm-em:
PM: EM: Fix NULL pointer dereference when perf domain ID is not found
Akash Goel [Wed, 1 Apr 2026 13:48:54 +0000 (15:48 +0200)]
drm/panthor: Add a GEM shrinker
This implementation is losely based on the MSM shrinker, and it's
relying on the drm_gpuvm eviction/validation infrastructure.
Right now we only support swapout/eviction, but we could add an extra
flag to specify when buffer content doesn't need to be preserved to
avoid the swapout/swapin dance.
Locking is a bit of a nightmare, but using _trylock() all the way in
the reclaim path seems to make lockdep happy. And yes, we might be
missing opportunities to reclaim when the system is under heavy GPU
load/heavy memory pressure/heavy GPU VM activity, but that's better
than no reclaim at all.
v2:
- Move gpu_mapped_shared next to the mmapped LRU
- Add a bunch of missing is_[vm_bo,vma]_evicted() tests
- Only test mmap_count to check if a BO is mmaped
- Remove stale comment about shrinker not being a thing
- Allow pin_count to be non-zero in panthor_gem_swapin_locked()
- Fix panthor_gem_sync() to check for BO residency before doing the CPU sync
- Fix the value returned by panthor_gem_shrinker_count() in case some
memory has been released
- Check drmm_mutex_init() ret code
- Explicitly mention that PANTHOR_GEM_UNRECLAIMABLE is the initial state
of all BOs
v3:
- Make panthor_gem_try_evict() static
- Collect {A,R}-bs
v4:
- Update the reclaim_state in panthor_gem_mmap()
- Don't reclaim GPU-mapped BOs if can_block() returns false
- Skip evicited vm_bos in panthor_vm_update_bo_reclaim_lru_locked() to
avoid spurious WARN_ON()s
- Explain why we have to do this
select_evicted_vma/repopulate_evicted_vma dance
v5:
- Properly report the reclaimable size in panthor_gem_debugfs_print_bos()
- Check panthor_vm_lock_region() errors in
panthor_vm_evict_bo_mappings_locked()
- Fix lock order inversion (dma_resv_wait_timeout() inside gpuva.lock)
v6:
- Don't remap if the unmapped VMA is evicted.
- Drop a stale comment in panthor_gem_dev_map_get_sgt_locked()
- s/PANTHOR_GEM_GPU_MAPPED_PRIVATE/PANTHOR_GEM_GPU_MAPPED_SINGLE_VM/
- s/PANTHOR_GEM_GPU_MAPPED_SHARED/PANTHOR_GEM_GPU_MAPPED_MULTI_VM/
- Just count the number of vm_bo to determine the reclaim state in
is_gpu_mapped()
- Drop a redundant panthor_gem_backing_get_pages_locked() call in
panthor_gem_swapin_locked()
- Add more comments to panthor_vm_evict_bo_mappings_locked() to
convince Claude it's actually safe.
- Add a comment in panthor_gem_shrinker_count() to mention the race
and hopefully clear Claude's concerns.
- Rework the "is-still-in-list" check we have in
panthor_mmu_reclaim_priv_bos() to address Claude's concerns
- Don't call panthor_vm_unlock_region() if panthor_vm_lock_region()
fails in remap_evicted_vma(). Was harmless, but confusing, as
pointed out by Claude
- Fix can_block() to allow blocking on KSWAPD_RECLAIM-only in a kswapd
context
- Fix a lockdep warning when the last ref on a BO is released in the
shrinker path, where the resv lock can't be acquired other than with
a try_lock()
v7:
- Skip drm_gpuvm_bo_deferred_cleanup() when repopulating VMAs to fix a
deadlock
Signed-off-by: Akash Goel <akash.goel@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-11-boris.brezillon@collabora.com
Co-developed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:53 +0000 (15:48 +0200)]
drm/panthor: Track the number of mmap on a BO
This will be used to order things by reclaimability.
v2:
- Fix refcounting
v3:
- Fix refcounting (again)
v4:
- Collect R-b
v5:
- Collect R-b
v6:
- Warn on is_imported() (not supposed to happen since mmap is
redirected to the dmabuf layer) instead of adding a conditional
in panthor_gem_vm_open()
v7:
- No changes
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-10-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:52 +0000 (15:48 +0200)]
drm/panthor: Split panthor_vm_prepare_map_op_ctx() to prepare for reclaim
We're gonna need just the page table reservation logic when we restore
evicted BO mappings, so let's prepare for that by extracting the
op_ctx init and page table pre-allocation into separate helpers.
v2:
- Collect R-bs
v3:
- No changes
v4:
- No changes
v5:
- No changes
v6:
- No changes
v7:
- No changes
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-9-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:51 +0000 (15:48 +0200)]
drm/panthor: Lazily allocate pages on mmap()
Defer pages allocation until their first access.
v2:
- Don't deal with FAULT_FLAG_INTERRUPTIBLE
- Make sure bo->backing.pages is never an ERR_PTR()
- Drop a useless vm_fault_t local var
- Fix comment in panthor_gem_fault()
v3:
- Collect R-bs
v4:
- No changes
v5:
- No changes
v6:
- Fix huge_fault handling
v7:
- No changes
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-8-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:50 +0000 (15:48 +0200)]
drm/panthor: Part ways with drm_gem_shmem_object
While drm_gem_shmem_object does most of the job we need it to do, the
way sub-resources (pages, sgt, vmap) are handled and their lifetimes
gets in the way of BO reclaim. There has been attempts to address
that [1], but in the meantime, new gem_shmem users were introduced
(accel drivers), and some of them manually free some of these resources.
This makes things harder to control/sanitize/validate.
Thomas Zimmerman is not a huge fan of enforcing lifetimes of sub-resources
and forcing gem_shmem users to go through new gem_shmem helpers when they
need manual control of some sort, and I believe this is a dead end if
we don't force users to follow some stricter rules through carefully
designed helpers, because there will always be one user doing crazy things
with gem_shmem_object internals, which ends up tripping out the common
helpers when they are called.
The consensus we reached was that we would be better off forking
gem_shmem in panthor. So here we are, parting ways with gem_shmem. The
current transition tries to minimize the changes, but there are still
some aspects that are different, the main one being that we no longer
have a pages_use_count, and pages stays around until the GEM object is
destroyed (or when evicted once we've added a shrinker). The sgt also
no longer retains pages. This is losely based on how msm does things by
the way.
If there's any interest in sharing code (probably with msm, since the
panthor shrinker is going to be losely based on the msm implementation),
we can always change gears and do that once we have everything
working/merged.
[1]https://patchwork.kernel.org/project/dri-devel/patch/
20240105184624.508603-1-dmitry.osipenko@collabora.com/
v2:
- Fix refcounting
- Add a _locked suffix to a bunch of functions expecting the resv lock
to be held
- Take the lock before releasing resources in panthor_gem_free_object()
v3:
- Use ERR_CAST() to fix an ERR-ptr deref
- Add missing resv_[un]lock() around a panthor_gem_backing_unpin_locked()
call
v4:
- Fix an error path in panthor_gem_vmap_get_locked()
- Don't leave bo->base.pages with an ERR_PTR()
- Make panthor_gem_{pin,unpin}[_locked]() more consistent
- Don't fail in panthor_gem_dev_map_get_sgt_locked() if the pages are not
allocated
v5:
- Add missing static specifier on our vm_ops
v6:
- Fix huge_fault handling
- s/uint32_t/u32/
- s/drm_dbg_kms/drm_dbg_driver/
- Collect R-bs
v7:
- No changes
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-7-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:49 +0000 (15:48 +0200)]
drm/panthor: Don't call drm_gpuvm_bo_extobj_add() if the object is private
drm_gpuvm_bo_extobj_add() is a NOP if the object is private, but it
forces us to take/release the VM resv lock, so let's do that only when
we know the object can be shared.
v3:
- New commit
v4:
- Collect R-bs
v5:
- No changes
v6:
- No changes
v7:
- No changes
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-6-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:48 +0000 (15:48 +0200)]
drm/panthor: Group panthor_kernel_bo_xxx() helpers
Move all panthor_kernel_bo_xxx() helpers at the end of the file, just
before the debugfs init logic. This will make further panthor_gem.c
refactoring more readable.
v2:
- Collect R-bs
v3:
- No changes
v4:
- No changes
v5:
- No changes
v6:
- No changes
v7:
- No changes
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-5-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:47 +0000 (15:48 +0200)]
drm/panthor: Move panthor_gems_debugfs_init() to panthor_gem.c
There's no reason for panthor_drv to know about panthor_gem.c internals,
so let's move the GEM debugfs init logic to panthor_gem.c.
v2:
- Collect R-bs
v3:
-No changes
v4:
- No changes
v5:
- No changes
v6:
- No changes
v7:
- No changes
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-4-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:46 +0000 (15:48 +0200)]
drm/panthor: Remove unused panthor_vm_op_ctx::map::new_vma field
This field is never used, drop it.
v7:
- New patch
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-3-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Boris Brezillon [Wed, 1 Apr 2026 13:48:45 +0000 (15:48 +0200)]
drm/gem: Consider GEM object reclaimable if shrinking fails
If the object wasn't moved to a different LRU after the shrink callback
returns, it means the buffer is still reclaimable. Update the remaining
counter to reflect that.
v2:
- Collect R-b
v3:
- Collect R-b
v4:
- No changes
v5:
- No changes
v6:
- No changes
v7:
- No changes
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patch.msgid.link/20260401134854.2275433-2-boris.brezillon@collabora.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Willy Tarreau [Fri, 3 Apr 2026 06:20:18 +0000 (08:20 +0200)]
Documentation: clarify the mandatory and desirable info for security reports
A significant part of the effort of the security team consists in begging
reporters for patch proposals, or asking them to provide them in regular
format, and most of the time they're willing to provide this, they just
didn't know that it would help. So let's add a section detailing the
required and desirable contents in a security report to help reporters
write more actionable reports which do not require round trips.
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260403062018.31080-4-w@1wt.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Willy Tarreau [Fri, 3 Apr 2026 06:20:17 +0000 (08:20 +0200)]
Documentation: explain how to find maintainers addresses for security reports
These days, 80% of the work done by the security team consists in
locating the affected subsystem in a report, running get_maintainers on
it, forwarding the report to these persons and responding to the reporter
with them in Cc. This is a huge and unneeded overhead that we must try to
lower for a better overall efficiency. This patch adds a complete section
explaining how to figure the list of recipients to send the report to.
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260403062018.31080-3-w@1wt.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Willy Tarreau [Fri, 3 Apr 2026 06:20:16 +0000 (08:20 +0200)]
Documentation: minor updates to the security contacts
This clarifies the fact that the bug reporters must use a valid
e-mail address to send their report, and that the security team
assists developers working on a fix but doesn't always produce
fixes on its own.
Cc: Eric Dumazet <edumazet@google.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260403062018.31080-2-w@1wt.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dave Airlie [Fri, 3 Apr 2026 09:05:46 +0000 (19:05 +1000)]
Merge tag 'drm-misc-fixes-2026-04-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
A refcounting fix for bridges, revert a previous framebuffer
use-after-free fix that turned out to be causing more problems, a hang
fix for qaic, an initialization fix for ast, a error handling fix for
sysfb, and a speculation fix for drm_compat_ioctl.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260402-vivid-perfect-caiman-ca055e@houat
Dave Airlie [Fri, 3 Apr 2026 08:56:58 +0000 (18:56 +1000)]
Merge tag 'drm-msm-next-2026-04-02' of https://gitlab.freedesktop.org/drm/msm into drm-next
Changes for v7.1
CI:
- Uprev mesa
- Restore CI jobs for Qualcomm APQ8016 and APQ8096 devices
Core:
- Switched to of_get_available_child_by_name()
DPU:
- Fixes for DSC panels
- Fixed brownout because of the frequency / OPP mismatch
- Quad pipe preparation (not enabled yet)
- Switched to virtual planes by default
- Dropped VBIF_NRT support
- Added support for Eliza platform
- Reworked alpha handling
- Switched to correct CWB definitions on Eliza
- Dropped dummy INTF_0 on MSM8953
- Corrected INTFs related to DP-MST
DP:
- Removed debug prints looking into PHY internals
DSI:
- Fixes for DSC panels
- RGB101010 support
- Support for SC8280XP
- Moved PHY bindings from display/ to phy/
GPU:
- Preemption support for x2-85 and a840
- IFPC support for a840
- SKU detection support for x2-85 and a840
- Expose AQE support (VK ray-pipeline)
- Avoid locking in VM_BIND fence signaling path
- Fix to avoid reclaim in GPU snapshot path
- Disallow foreign mapping of _NO_SHARE BOs
- Couple a6xx gpu snapshot fixes
- Various other fixes
HDMI:
- Fixed infoframes programming
MDP5:
- Dropped support for MSM8974v1
- Dropped now unused code for MSM8974 v1 and SDM660 / MSM8998
Also misc small fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <rob.clark@oss.qualcomm.com>
Link: https://patch.msgid.link/CACSVV012vn73BaUfk=Hw4WkQHZNPHiqfifWEunAqMc2EGOWUEQ@mail.gmail.com
Dave Airlie [Fri, 3 Apr 2026 08:41:48 +0000 (18:41 +1000)]
Merge tag 'amd-drm-fixes-7.0-2026-04-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-7.0-2026-04-02:
amdgpu:
- Fix audio regression on renoir
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260402194409.914769-1-alexander.deucher@amd.com
Dave Airlie [Fri, 3 Apr 2026 08:36:51 +0000 (18:36 +1000)]
Merge tag 'drm-xe-fixes-2026-04-02' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
uAPI Fix:
- Accept canonical GPU addresses in xe_vm_madvise_ioctl (Arvind)
Driver Fixes:
- Disallow writes to read-only VMAs (Jonathan)
- PXP fixes (Daniele)
- Disable garbage collector work item on SVM clos (Brost)
- void memory allocations in xe_device_declare_wedged (Brost)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/ac5mDHs-McR5cJSV@intel.com
Dave Airlie [Fri, 3 Apr 2026 08:31:22 +0000 (18:31 +1000)]
Merge tag 'drm-intel-fixes-2026-04-02' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Fix for #12045: Huawei Matebook E (DRR-WXX): Persistent Black Screen on Boot with i915 and Gen11: Modesetting and Backlight Control Malfunction
- Fix for #15826: i915: Raptor Lake-P [UHD Graphics] display flicker/corruption on eDP panel
- Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patch.msgid.link/ac5DM1IpBkuaT58e@jlahtine-mobl
Linus Torvalds [Fri, 3 Apr 2026 04:04:28 +0000 (21:04 -0700)]
Merge tag 'v7.0-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fix from Steve French:
- Fix potential out of bounds read in mount
* tag 'v7.0-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath
Linus Torvalds [Fri, 3 Apr 2026 01:59:56 +0000 (18:59 -0700)]
Merge tag 'bpf-fixes' of git://git./linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Fix register equivalence for pointers to packet (Alexei Starovoitov)
- Fix incorrect pruning due to atomic fetch precision tracking (Daniel
Borkmann)
- Fix grace period wait for bpf_link-ed tracepoints (Kumar Kartikeya
Dwivedi)
- Fix use-after-free of sockmap's sk->sk_socket (Kuniyuki Iwashima)
- Reject direct access to nullable PTR_TO_BUF pointers (Qi Tang)
- Reject sleepable kprobe_multi programs at attach time (Varun R
Mallya)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Add more precision tracking tests for atomics
bpf: Fix incorrect pruning due to atomic fetch precision tracking
bpf: Reject sleepable kprobe_multi programs at attach time
bpf: reject direct access to nullable PTR_TO_BUF pointers
bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().
bpf: Fix grace period wait for tracepoint bpf_link
bpf: Fix regsafe() for pointers to packet
Linus Torvalds [Fri, 3 Apr 2026 00:29:48 +0000 (17:29 -0700)]
Merge tag 'v7.0-p4' of git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- Add missing async markers to tegra
- Fix long hmac key DMA handling in caam
- Fix spurious ENOSPC errors in deflate
- Fix SG chaining in af_alg
- Do not use in-place process in algif_aead
- Fix out-of-place destination overflow in authencesn
* tag 'v7.0-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
crypto: algif_aead - Revert to operating out-of-place
crypto: af-alg - fix NULL pointer dereference in scatterwalk
crypto: deflate - fix spurious -ENOSPC
crypto: caam - fix overflow on long hmac keys
crypto: caam - fix DMA corruption on long hmac keys
crypto: tegra - Add missing CRYPTO_ALG_ASYNC
Changwoo Min [Thu, 2 Apr 2026 02:31:50 +0000 (11:31 +0900)]
sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
Since commit
8e4f0b1ebcf2 ("bpf: use rcu_read_lock_dont_migrate() for
trampoline.c"), the BPF prolog (__bpf_prog_enter) calls migrate_disable()
only when CONFIG_PREEMPT_RCU is enabled, via rcu_read_lock_dont_migrate().
Without CONFIG_PREEMPT_RCU, the prolog never touches migration_disabled,
so migration_disabled == 1 always means the task is truly
migration-disabled regardless of whether it is the current task.
The old unconditional p == current check was a false negative in this
case, potentially allowing a migration-disabled task to be dispatched to
a remote CPU and triggering scx_error in task_can_run_on_remote_rq().
Only apply the p == current disambiguation when CONFIG_PREEMPT_RCU is
enabled, where the ambiguity with the BPF prolog still exists.
Fixes:
8e4f0b1ebcf2 ("bpf: use rcu_read_lock_dont_migrate() for trampoline.c")
Cc: stable@vger.kernel.org # v6.18+
Link: https://lore.kernel.org/lkml/20250821090609.42508-8-dongml2@chinatelecom.cn/
Signed-off-by: Changwoo Min <changwoo@igalia.com>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Ionut Nechita [Mon, 23 Mar 2026 21:13:43 +0000 (23:13 +0200)]
drm/amd/display: Wire up dcn10_dio_construct() for all pre-DCN401 generations
Description:
- Commit
b82f0759346617b2 ("drm/amd/display: Migrate DIO registers access
from hwseq to dio component") moved DIO_MEM_PWR_CTRL register access
behind the new dio abstraction layer but only created the dio object for
DCN 4.01. On all other generations (DCN 10/20/21/201/30/301/302/303/
31/314/315/316/32/321/35/351/36), the dio pointer is NULL, causing the
register write to be silently skipped.
This results in AFMT HDMI memory not being powered on during init_hw,
which can cause HDMI audio failures and display issues on affected
hardware including Renoir/Cezanne (DCN 2.1) APUs that use dcn10_init_hw.
Call dcn10_dio_construct() in each older DCN generation's resource.c
to create the dio object, following the same pattern as DCN 4.01. This
ensures the dio pointer is non-NULL and the mem_pwr_ctrl callback works
through the dio abstraction for all DCN generations.
Fixes:
b82f07593466 ("drm/amd/display: Migrate DIO registers access from hwseq to dio component.")
Reviewed-by: Ivan Lipski <ivan.lipski@amd.com>
Signed-off-by: Ionut Nechita <ionut_n2001@yahoo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Linus Torvalds [Thu, 2 Apr 2026 19:03:15 +0000 (12:03 -0700)]
Merge tag 'v7.0-rc6-ksmbd-server-fix' of git://git.samba.org/ksmbd
Pull smb server fix from Steve French:
- Fix out of bound write
* tag 'v7.0-rc6-ksmbd-server-fix' of git://git.samba.org/ksmbd:
ksmbd: fix OOB write in QUERY_INFO for compound requests
Linus Torvalds [Thu, 2 Apr 2026 17:31:30 +0000 (10:31 -0700)]
Merge tag 'for-7.0-rc6-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One more fix for a potential extent tree corruption due to an
unexpected error value.
When the search for an extent item failed, it under some circumstances
was reported as a success to the caller"
* tag 'for-7.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix incorrect return value after changing leaf in lookup_extent_data_ref()