Commit Graph

1428899 Commits

Author SHA1 Message Date
Tvrtko Ursulin
1d5945d74b
drm/xe/xelp: Add AuxCCS invalidation to the indirect context workarounds
Following from the i915 reference implementation, we add the AuxCCS
invalidation to the indirect context workarounds page.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-8-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:11 -04:00
Tvrtko Ursulin
fd4c1eea1c
drm/xe: Move aux table invalidation to ring ops
Implement the suggestion of moving the aux invalidation from a helper to a
ring ops vfunc, together with the suggestion to split the vfunc table of
video decode and video enhance engines.

With this done the LRC code will be able to access the functionality via
the newly added ring ops vfunc.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-7-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:11 -04:00
Tvrtko Ursulin
cd1a516234
drm/xe/xelp: Wait for AuxCCS invalidation to complete
On AuxCCS platforms we need to wait for AuxCCS invalidations to complete.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-6-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:11 -04:00
Tvrtko Ursulin
458b1e64e7
drm/xe/xelp: Quiesce memory traffic before invalidating AuxCCS
According to i915 commit
ad8ebf1221 ("drm/i915/gt: Ensure memory quiesced before invalidation")
quiescing of the memory traffic is required before invalidating the AuxCCS
tables.

Add an extra pipe control flush to achieve that.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-5-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:11 -04:00
Tvrtko Ursulin
88139af77d
drm/xe/xelpg: Limit AuxCCS ring buffer programming to Alderlake
At the moment the driver does not support AuxCCS at all due respective
modifiers being hidden from userspace.

As we are about to start enabling them, starting with Alderlake, let us
begin by limiting the ring buffer support to just that initial platform.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-4-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:11 -04:00
Tvrtko Ursulin
36052e56d5
drm/xe: Use write-combine mapping when populating DPT
The fallback case for DPT backing store is a buffer object in system
memory buffer, which by default use a write-back CPU caching policy.

If this fallback gets triggered, and since there is currently no flushing,
the DPT writes made when pinning a buffer to display are not guaranteed to
be seen by the display engine.

To fix this, since both the local memory and the stolen memory DPT
placements already use write-combine, let us make the system memory option
follow suit by passing down the appropriate flag.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-3-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:10 -04:00
Tvrtko Ursulin
2bb026f3fb
drm/xe: Rename XE_BO_FLAG_SCANOUT to XE_BO_FLAG_FORCE_WC
Rename XE_BO_FLAG_SCANOUT to XE_BO_FLAG_FORCE_WC so that the usage of the
flag can legitimately be expanded to more than just the actual frame-
buffer objects.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260324084018.20353-2-tvrtko.ursulin@igalia.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2026-03-24 09:29:10 -04:00
Piotr Piórkowski
9e60ee0e6d vfio/xe: Notify PF about VF FLR in reset_prepare
Hook into the PCI error handler reset_prepare() callback to notify
the PF about an upcoming VF FLR before reset_done() is executed.
This enables early FLR_PREPARE signaling and ensures that the PF is
aware of the reset before the completion wait begins.

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Alex Williamson <alex@shazbot.org>
Link: https://patch.msgid.link/20260309152449.910636-3-piotr.piorkowski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2026-03-24 10:47:52 +01:00
Piotr Piórkowski
2de36e3f72 drm/xe/pf: Add FLR_PREPARE state to VF control flow
Our xe-vfio-pci component relies on the confirmation from the PF
that VF FLR processing has finished, but due to the notification
latency on the HW/FW side, PF might be unaware yet of the already
triggered VF FLR.

Update VF state machine with new FLR_PREPARE state that indicate
imminent VF FLR notification and treat that as a begin of the FLR
sequence. Also introduce function that xe-vfio-pci should call to
guarantee correct synchronization.

v2: move PREPARE into WIP, update commit msg (Michal)

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Co-developed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260309152449.910636-2-piotr.piorkowski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2026-03-24 10:47:52 +01:00
Matt Roper
a31566762d drm/xe: Implement recent spec updates to Wa_16025250150
The hardware teams noticed that the originally documented workaround
steps for Wa_16025250150 may not be sufficient to fully avoid a hardware
issue.  The workaround documentation has been augmented to suggest
programming one additional register; make the corresponding change in
the driver.

Fixes: 7654d51f1f ("drm/xe/xe2hpg: Add Wa_16025250150")
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patch.msgid.link/20260319-wa_16025250150_part2-v1-1-46b1de1a31b2@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-23 12:07:06 -07:00
Tejas Upadhyay
e8c3a913c8 drm/xe/xe3p: Skip TD flush
Xe3p has HW ability to do transient display flush so the xe driver can
enable this HW feature by default and skip the software TD flush.

Bspec: 60002
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
Link: https://patch.msgid.link/20260305121902.1892593-10-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-23 15:24:41 +05:30
Tejas Upadhyay
4f39a194d4 drm/xe/xe3p_lpg: Restrict UAPI to enable L2 flush optimization
When set, starting xe3p_lpg, the L2 flush optimization
feature will control whether L2 is in Persistent or
Transient mode through monitoring of media activity.

To enable L2 flush optimization include new feature flag
GUC_CTL_ENABLE_L2FLUSH_OPT for Novalake platforms when
media type is detected.

Tighten UAPI validation to restrict userptr, svm and
dmabuf mappings to be either 2WAY or XA+1WAY

V5(Thomas): logic correction
V4(MattA): Modify uapi doc and commit
V3(MattA): check valid op and pat_index value
V2(MattA): validate dma-buf bos and madvise pat-index

Acked-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Michal Mrozek <michal.mrozek@intel.com>
Acked-by: Carl Zhang <carl.zhang@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260305121902.1892593-9-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-23 15:24:14 +05:30
Tejas Upadhyay
411389d29e drm/xe/pat: define coh_mode 2way
Defining 2way (two-way coherency) is critical for
Xe3p_LPG (Nova Lake P) platforms to support L2 flush
optimization safely.

This mode allows the driver to skip certain manual cache
flushes (L2 flush optimization) without risking memory
corruption because the hardware ensures the most recent
data is visible to both entities.

Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260305121902.1892593-8-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-23 15:23:24 +05:30
Tejas Upadhyay
4e7ebff69a drm/xe/xe3p_lpg: flush shrinker bo cachelines manually
XA, new pat_index introduced post xe3p_lpg, is memory shared between the
CPU and GPU is treated differently from other GPU memory when the Media
engine is power-gated.

XA is *always* flushed, like at the end-of-submssion (and maybe other
places), just that internally as an optimisation hw doesn't need to make
that a full flush (which will also include XA) when Media is
off/powergated, since it doesn't need to worry about GT caches vs Media
coherency, and only CPU vs GPU coherency, so can make that flush a
targeted XA flush, since stuff tagged with XA now means it's shared with
the CPU. The main implication is that we now need to somehow flush non-XA
before freeing system memory pages, otherwise dirty cachelines could be
flushed after the free (like if Media suddenly turns on and does a full
flush)

V4: Add comments for L2 flush path
V3(Thomas/MattA/MattR): Restrict userptr with non-xa, then no need to
                        flush manually
V2(MattA): Expand commit description

Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20260305121902.1892593-7-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-23 15:23:24 +05:30
Michal Wajdeczko
61e7649a1a drm/xe/vf: Improve getting clean NULL context
There is a small risk that when fetching a NULL context image the
VF may get a tweaked context image prepared by another VF that was
previously running on the engine before the GuC scheduler switched
the VFs.

To avoid that risk, without forcing GuC scheduler to trigger costly
engine reset on every VF switch, use a watchdog mechanism that when
configured with impossible condition, triggers an interrupt, which
GuC will handle by doing an engine reset. Also adjust job size to
account for additional dwords with watchdog setup.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260303201354.17948-4-michal.wajdeczko@intel.com
2026-03-23 10:38:14 +01:00
Michal Wajdeczko
d95fda2975 drm/xe: Add MI_SEMAPHORE_WAIT command definition
This command supports memory based Semaphore WAIT. Memory based
semaphores will be used for synchronization between the Producer
and the Consumer contexts. Producer and Consumer Contexts could
be running on different engines or on the same engine inside GT.

Bspec: 45749, 60244
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260303201354.17948-3-michal.wajdeczko@intel.com
2026-03-23 10:38:13 +01:00
Michal Wajdeczko
6cd7d168c4 drm/xe: Add PR_CTR_CTRL/THRSH register definitions
The Watchdog Counter Control and Watchdog Counter Threshold
registers are needed for watchdog programming. This watchdog
will generate the "Media Hang Notify" interrupt.

Bspec: 45999, 46000
Bspec: 60373, 60374
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260303201354.17948-2-michal.wajdeczko@intel.com
2026-03-23 10:38:11 +01:00
Michał Winiarski
4f53d8c6d2 drm/xe/pf: Fix use-after-free in migration restore
When an error is returned from xe_sriov_pf_migration_restore_produce(),
the data pointer is not set to NULL, which can trigger use-after-free
in subsequent .write() calls.
Set the pointer to NULL upon error to fix the problem.

Fixes: 1ed30397c0 ("drm/xe/pf: Add support for encap/decap of bitstream to/from packet")
Reported-by: Sebastian Österlund <sebastian.osterlund@intel.com>
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/7230
Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com>
Link: https://patch.msgid.link/20260217154118.176902-1-michal.winiarski@intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2026-03-23 09:44:14 +01:00
Nathan Chancellor
cb7415d8cb drm/xe: Fix format specifier for printing pointer differences
GCC and clang warn (or error with CONFIG_WERROR=y / W=e) several times
when targeting 32-bit platforms along the lines of

  drivers/gpu/drm/xe/xe_lrc.c: In function 'dump_mi_command':
  drivers/gpu/drm/xe/xe_lrc.c:1921:40: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Werror=format=]
   1921 |                 drm_printf(p, "LRC[%#5lx]  =  [%#010x] MI_NOOP (%d dwords)\n",
        |                                    ~~~~^
        |                                        |
        |                                        long unsigned int
        |                                    %#5x
   1922 |                            dw - num_noop - start, inst_header, num_noop);
        |                            ~~~~~~~~~~~~~~~~~~~~~
        |                                          |
        |                                          int

  drivers/gpu/drm/xe/xe_lrc.c:1922:7: error: format specifies type 'unsigned long' but the argument has type '__ptrdiff_t' (aka 'int') [-Werror,-Wformat]
   1921 |                 drm_printf(p, "LRC[%#5lx]  =  [%#010x] MI_NOOP (%d dwords)\n",
        |                                    ~~~~~
        |                                    %#5tx
   1922 |                            dw - num_noop - start, inst_header, num_noop);
        |                            ^~~~~~~~~~~~~~~~~~~~~

Use the '%tx' specifier for printing pointer differences, which clears
up the warnings for 32-bit platforms while introducing no regressions
for 64-bit platforms.

Fixes: 65fcf19cb3 ("drm/xe: Include running dword offset in default_lrc dumps")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260316-drm-xe-fix-32-bit-wformat-ptrdiff-v1-1-0108b10b2b6b@kernel.org
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-20 10:54:24 -07:00
Nitin Gote
2c440f2fcc drm/xe: Extend Wa_14026781792 for xe3lpg
Wa_14026781792 applies to all graphics versions from 30.00
through 35.10 (inclusive). Since there are no IPs between
30.05 and 35.10, consolidate the RTP rules into a single
GRAPHICS_VERSION_RANGE(3000, 3510).

v2: (Matt)
 - There are no IPs between 30.05 and 35.10 either,
   So, consolidate this into a single GRAPHICS_VERSION_RANGE(3000, 3510)
 - Also move it up to the top part of the table

Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260317080059.1275116-2-nitin.r.gote@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-20 15:45:27 +05:30
Varun Gupta
18fc0f1d7d drm/xe/xe3p_lpg: Add Wa_16029437861
Wa_16029437861 requires disabling COAMA atomics by setting bit 22
(SQ_DISABLE_COAMA) of L3SQCREG2 (0xb104) for Xe3p_LPG graphics
version 35.10 stepping A0..B0. This bit is already set by the existing
Wa_14026144927 entry, so add the new WA ID to the same implementation.

Signed-off-by: Varun Gupta <varun.gupta@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://patch.msgid.link/20260317040447.1792687-1-varun.gupta@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-20 15:42:17 +05:30
Varun Gupta
c56af8fee9 drm/ttm: Fix spelling mistakes and comment style in ttm_resource.c
Correct several spelling mistakes and textual inconsistencies in
kdoc comments and inline comments.

Suggested-by: Sanjay Yadav <sanjay.kumar.yadav@intel.com>
Signed-off-by: Varun Gupta <varun.gupta@intel.com>
Reviewed-by: Nitin Gote <nitin.r.gote@intel.com>
Link: https://patch.msgid.link/20260316035915.1403424-1-varun.gupta@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
2026-03-19 15:14:29 +05:30
Thomas Hellström
9e63413827 Merge drm/drm-next into drm-xe-next
Bring in series "drm/{i915,xe}: sort out step enums between the drivers"
that was merged through i915.

Link: https://lore.kernel.org/all/cover.1772635152.git.jani.nikula@intel.com
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2026-03-19 10:01:55 +01:00
Sanjay Yadav
7937ea733f drm/xe: Fix missing runtime PM reference in ccs_mode_store
ccs_mode_store() calls xe_gt_reset() which internally invokes
xe_pm_runtime_get_noresume(). That function requires the caller
to already hold an outer runtime PM reference and warns if none
is held:

  [46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection
  [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at
  xe_pm_runtime_get_noresume+0x8b/0xc0

Fix this by protecting xe_gt_reset() with the scope-based
guard(xe_pm_runtime)(xe), which is the preferred form when
the reference lifetime matches a single scope.

v2:
- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)
- Update commit message accordingly

Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/7593
Fixes: 480b358e7d ("drm/xe: Do not wake device during a GT reset")
Cc: <stable@vger.kernel.org> # v6.19+
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Shuicheng Lin <shuicheng.lin@intel.com>
Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Sanjay Yadav <sanjay.kumar.yadav@intel.com>
Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260313071608.3459480-2-sanjay.kumar.yadav@intel.com
2026-03-18 11:59:39 +00:00
Umesh Nerlige Ramappa
466e75d480 drm/xe/lrc: Fix uninitialized new_ts when capturing context timestamp
Getting engine specific CTX TIMESTAMP register can fail. In that case,
if the context is active, new_ts is uninitialized. Fix that case by
initializing new_ts to the last value that was sampled in SW -
lrc->ctx_timestamp.

Flagged by static analysis.

v2: Fix new_ts initialization (Ashutosh)

Fixes: bb63e7257e ("drm/xe: Avoid toggling schedule state to check LRC timestamp in TDR")
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patch.msgid.link/20260312125308.3126607-2-umesh.nerlige.ramappa@intel.com
2026-03-17 20:55:16 -07:00
Ashutosh Dixit
4ff57c5e8d drm/xe/oa: Allow reading after disabling OA stream
Some OA data might be present in the OA buffer when OA stream is
disabled. Allow UMD's to retrieve this data, so that all data till the
point when OA stream is disabled can be retrieved.

v2: Update tail pointer after disable (Umesh)

Fixes: efb315d0a0 ("drm/xe/oa/uapi: Read file_operation")
Cc: stable@vger.kernel.org
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa<umesh.nerlige.ramappa@intel.com>
Link: https://patch.msgid.link/20260313053630.3176100-1-ashutosh.dixit@intel.com
2026-03-17 15:05:29 -07:00
Dave Airlie
d93f8ea0e5 Merge tag 'drm-intel-next-2026-03-16' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
[airlied: fixed conflict with xe tree]
drm/i915 feature pull for v7.1:

Features and functionality:
- C10/C20/LT PHY PLL divider verification (Mika)
- Use trans push mechanism to generate PSR frame change event on LNL+ (Jouni)
- Account for DSC bubble overhead for horizontal slices (Ankit, Chaitanya)

Refactoring and cleanups:
- Refactor DP DSC slice config computation (Imre)
- Use GVT versions of register helper macros for GVT MMIO table (Ankit)
- C10/C20/LT PHY PLL computation refactoring (Mika)
- VGA decode refactoring and related fixes/cleanups (Ville)
- Move DSB buffer buffer implementation to display parent interface (Jani)
- Move error interrupt capture to display irq snapshot (Jani)
- Move pcode calls to display parent interface (Jani)
- Reduce GVT dependency on display headers (Jani)
- Compute config and mode valid refactoring for DSC (Ankit)
- Stop using i915 core register headers in display (Uma)
- Refactor DPT, move i915 parts to display parent interface (Jani)
- Refactor gen2-4 overlay, move to display parent interface (Ville)
- Refactor masked field register macro helpers, move to shared headers (Jani)
- Convert a number of workaround checks to the new workaround framework (Luca)
- Refactor and move frontbuffer calls to display parent interface (Jani)
- Add VMA calls to display parent interface (Jani)
- Refactor stolen memory allocation decisions (Vinod, Ville)
- Clean up and unify workqueue usage (Marco Crivellari)
- Preparation for UHBR DP tunnels (Imre)
- Allow DSC passthrough modes during DP MST mode validation (Imre)
- Move framebuffer bo interface to display parent interface (Jani)

Fixes:
- Plenty of DP SST HPD IRQ handling fixes (Imre)
- DP AUX backlight and luminance control fixes (Suraj)
- Respect VBT pipe joiner disable for eDP (Ankit)
- Do not use CASF with joiner (Nemesa)
- Clear C10/C20 PHY response read and error bit to avoid PHY hangs (Suraj)
- Xe3p_LPD DMG clock gating, CDCLK, port sync workarounds (Suraj, Gustavo, Mitul)
- Fix GVT error path (Michał)
- Handle errors on DP DSC receiver cap reads (Suraj)
- DSS clock gating workaround on MTL+ to avoid DSC corruption (Mika)
- Skip state verification for LT PHY in TBT mode (Suraj)
- Fix NULL pointer dereference on suspend when uc firmware not loaded (Rahul Bukte)
- Fix an unlikely DMC state related NULL pointer dereference at probe (Imre)
- Handle error returns from vga_get_uninterruptible() (Simon Richter)
- Increase C10/C20/LT PHY timeouts to include SOC/OS turnaround (Arun)
- Fix BIOS FB vs. stolen memory size check (Ville)
- Fix LOBF to use computed guardband and set context latency (Ankit)
- Handle modeset WW mutex lock failures due to contention properly (Imre)
- Fix pipe BPP clamping due to HDR (Imre)
- Fix stale state usage in DSC state computation (Imre)
- Take HDCP 1.4 vs 2.x into account during link check (Suraj)
- Fix forced link retrain handling in MST HPD IRQ handler (Imre)
- Remove redundant warning on vcpi < 0 (Jonathan)

Core changes:
- iopoll: fix function parameter names in read_poll_timeout_atomic() (Randy Dunlap)

Merges:
- Backmerge drm-next for v7.0-rc1 (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/b14bb0f297b1750816cf5f342bde608e435655fa@intel.com
2026-03-17 15:44:26 +10:00
Brian Nguyen
1b12096b4b drm/xe: Skip adding PRL entry to NULL VMA
NULL VMAs have no corresponding PTE, so skip adding a PRL entry to avoid
an unnecessary PRL abort during unbind.

Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260305171546.67691-8-brian3.nguyen@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-16 09:42:41 -07:00
Brian Nguyen
d88fa967dc drm/xe: Move page reclaim done_handler to own func
Originally, page reclamation is handled by the same fence as tlb
invalidation and uses its seqno, so there was no reason to separate out
the handlers. However in hindsight, for readability, and possible
future changes, it seems more beneficial to move this all out to its own
function.

Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://patch.msgid.link/20260305171546.67691-7-brian3.nguyen@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-16 09:42:41 -07:00
Brian Nguyen
1d12358752 drm/xe: Skip over non leaf pte for PRL generation
The check using xe_child->base.children was insufficient in determining
if a pte was a leaf node. So explicitly skip over every non-leaf pt and
conditionally abort if there is a scenario where a non-leaf pt is
interleaved between leaf pt, which results in the page walker skipping
over some leaf pt.

Note that the behavior being targeted for abort is
PD[0] = 2M PTE
PD[1] = PT -> 512 4K PTEs
PD[2] = 2M PTE

results in abort, page walker won't descend PD[1].

With new abort, ensuring valid PRL before handling a second abort.

v2:
 - Revert to previous assert.
 - Revised non-leaf handling for interleaf child pt and leaf pte.
 - Update comments to specifications. (Stuart)
 - Remove unnecessary XE_PTE_PS64. (Matthew B)

v3:
 - Modify secondary abort to only check non-leaf PTEs. (Matthew B)

Fixes: b912138df2 ("drm/xe: Create page reclaim list on unbind")
Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Cc: Stuart Summers <stuart.summers@intel.com>
Link: https://patch.msgid.link/20260305171546.67691-6-brian3.nguyen@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-16 09:42:41 -07:00
Matt Roper
65fcf19cb3 drm/xe: Include running dword offset in default_lrc dumps
Printing a running dword offset in the default_lrc_* debugfs entries
makes it easier for developers to find the right offsets to use in
regs/xe_lrc_layout.h and/or compare the default LRC contents against the
bspec-documented LRC layout.

Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Link: https://patch.msgid.link/20260311-default_lrc_offsets-v1-1-58d8ed3aa081@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-16 08:46:59 -07:00
Raag Jadav
27a5e78a23 drm/xe/i2c: Assert/Deassert I2C IRQ
I2C IRQ is triggered using virtual wire. Assert/Deassert it in IRQ
handler to allow subsequent interrupt generation.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260313080438.4166251-1-raag.jadav@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-03-16 07:36:41 -07:00
Jani Nikula
9876394f64 drm/{i915,xe}: move framebuffer bo to parent interface
Add .framebuffer_init, .framebuffer_fini and .framebuffer_lookup to the
bo parent interface. While they're about framebuffers, they're
specifically about framebuffer objects, so the bo interface is a good
enough fit, and there's no need to add another interface struct.

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/848d32a44bf844cba3d66e44ba9f20bea4a8352d.1773238670.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-03-16 11:00:21 +02:00
Jani Nikula
a65c06a948 drm/i915/fb: make intel_fb_bo.c less dependent on display
intel_fb_bo.c is i915 core specific code, and should use struct
drm_i915_private instead of struct intel_display.

Switch one DISPLAY_VER() to GRAPHICS_VER(). The check is for < 4, where
they're effectively the same thing.

Reviewed-by: Suraj Kandpal@intel.com>
Link: https://patch.msgid.link/13087bd24bd5af5265ca6af67f086b93e26e311f.1773238670.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-03-16 11:00:21 +02:00
Jani Nikula
37a6ed2c28 drm/{i915, xe}/bo: move display bo calls to parent interface
Continue i915 and xe separation from display by moving the bo calls to
the display parent interface. Instead of adding all these functions to
intel_parent.[ch], reuse the now vacated intel_bo.[ch], and avoid mass
renames to calls of these functions. This is similar to
intel_display_rpm.[ch].

Make many of the hooks optional to avoid having to implement dummy
functions in xe. Indeed now we can remove many of the existing dummy
functions.

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/7899eef2ccf0cd603df69099df065226a0df917b.1773238670.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-03-16 11:00:21 +02:00
Jani Nikula
49464bb697 drm/xe: rename intel_bo.c to xe_display_bo.c
Follow the xe_ prefixed file naming in xe. With xe_bo.[ch] already being
a thing in xe core, use xe_display_bo.c.

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/2f73eda5117462407f12113ce096496282ee3fcc.1773238670.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-03-16 11:00:21 +02:00
Jani Nikula
e3ef2c2117 drm/i915: move i915 specific bo implementation to i915
The bo interface implementation is different for both i915 and xe. Move
the i915 specific implementation from display to i915 core.

Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/e159166d623899996a51a577365ca7ab9b1a0974.1773238670.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-03-16 11:00:21 +02:00
Dave Airlie
02e778f123 amd-drm-next-7.1-2026-03-12:
amdgpu:
 - SMU13 fix
 - SMU14 fix
 - Fixes for bring up hw testing
 - Kerneldoc fix
 - GC12 idle power fix for compute workloads
 - DCCG fixes
 - UserQ fixes
 - Move test for fbdev object to a generic helper
 - GC 12.1 updates
 - Use struct drm_edid in non-DC code
 - Include IP discovery data in devcoredump
 - SMU 13.x updates
 - Misc cleanups
 - DML 2.1 fixes
 - Enable NV12/P010 support on primary planes
 - Enable color encoding and color range on overlay planes
 - DC underflow fixes
 - HWSS fast path fixes
 - Replay fixes
 - DCN 4.2 updates
 - Support newer IP discovery tables
 - LSDMA 7.1 support
 - IH 7.1 fixes
 - SoC v1 updates
 - GC12.1 updates
 - PSP 15 updates
 - XGMI fixes
 - GPUVM locking fix
 
 amdkfd:
 - Fix missing BO unreserve in an error path
 
 radeon:
 - Move test for fbdev object to a generic helper
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCabMItwAKCRC93/aFa7yZ
 2BiwAQD3yQsA6xuspaMXduQwFE0tu6rL6bB+NSB7bfM2YYdE1AEAqi2GQPOlfohH
 DK/zb58ZPoeJfCdShPPQ85cSkPSu2wY=
 =OtzL
 -----END PGP SIGNATURE-----

Merge tag 'amd-drm-next-7.1-2026-03-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-next-7.1-2026-03-12:

amdgpu:
- SMU13 fix
- SMU14 fix
- Fixes for bring up hw testing
- Kerneldoc fix
- GC12 idle power fix for compute workloads
- DCCG fixes
- UserQ fixes
- Move test for fbdev object to a generic helper
- GC 12.1 updates
- Use struct drm_edid in non-DC code
- Include IP discovery data in devcoredump
- SMU 13.x updates
- Misc cleanups
- DML 2.1 fixes
- Enable NV12/P010 support on primary planes
- Enable color encoding and color range on overlay planes
- DC underflow fixes
- HWSS fast path fixes
- Replay fixes
- DCN 4.2 updates
- Support newer IP discovery tables
- LSDMA 7.1 support
- IH 7.1 fixes
- SoC v1 updates
- GC12.1 updates
- PSP 15 updates
- XGMI fixes
- GPUVM locking fix

amdkfd:
- Fix missing BO unreserve in an error path

radeon:
- Move test for fbdev object to a generic helper

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260312184425.3875669-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-03-16 16:50:53 +10:00
Dave Airlie
3f071d00fc Merge tag 'drm-xe-next-2026-03-12' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
UAPI Changes:
- add VM_BIND DECOMPRESS support and on-demand decompression (Nitin)
- Allow per queue programming of COMMON_SLICE_CHICKEN3 bit13 (Lionel)

Cross-subsystem Changes:
- Introduce the DRM RAS infrastructure over generic netlink (Riana, Rodrigo)

Core Changes:
- Two-pass MMU interval notifiers (Thomas)

Driver Changes:
- Merge drm/drm-next into drm-xe-next (Brost)
- Fix overflow in guc_ct_snapshot_capture (Mika, Fixes)
- Extract gt_pta_entry (Gustavo)
- Extra enabling patches for NVL-P (Gustavo)
- Add Wa_14026578760 (Varun)
- Add type-specific GT loop iterator (Roper)
- Refactor xe_migrate_prepare_vm (Raag)
- Don't disable GuCRC in suspend path (Vinay, Fixes)
- Add missing kernel docs in xe_exec_queue.c (Niranjana)
- Change TEST_VRAM to work with 32-bit resource_size_t (Wajdeczko)
- Fix memory leak in xe_vm_madvise_ioctl (Varun, Fixes)
- Skip access counter queue init for unsupported platforms (Himal)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/abLUVfSHu8EHRF9q@lstrano-desk.jf.intel.com
2026-03-16 12:21:08 +10:00
Dave Airlie
38cb89a6c9 Merge tag 'drm-intel-gt-next-2026-03-12' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
Driver Changes:

Fixes/improvements/new stuff:

- Fix potential overflow of shmem scatterlist length (Janusz Krzysztofik)

Miscellaneous:

- Keep mock file open during unfaultable migrate with fill [selftests] (Krzysztof Karas)
- Test for imported buffers with drm_gem_is_imported() (Thomas Zimmermann)
- Fix corrupted copyright symbols in selftest files [guc] (Konstantin Khorenko)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tursulin@igalia.com>
Link: https://patch.msgid.link/abKBHNFsBQCv2h3e@linux
2026-03-16 09:10:16 +10:00
Dave Airlie
d9a4a2021d drm-misc-next for v7.1:
UAPI Changes:
 
 amdxdna:
 - Add sensors ioctls
 
 Cross-subsystem Changes:
 
 dma-buf:
 - clean pages with helpers
 
 Documenatation:
 - devicetree: Add lxd vendor prefix
 
 Core Changes:
 
 buddy:
 - improve aligned allocations
 
 gem-shmem:
 - Track page accessed/dirty status across mmap/vmap
 
 ttm:
 - fix fence signalling
 
 Driver Changes:
 
 amdxdna:
 - provide NPU power estimate
 - support sensor for column utilization
 
 bridge:
 - anx7625: Fix USB Type-C handling
 - cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check
 
 ivpu:
 - fixes
 
 loongson:
 - replace custom code with drm_gem_ttm_dumb_map_offset()
 
 mxsfb:
 - lcdif: report probing errors with dev_err_probe()
 
 panel:
 - ilitek-ili9882t: Allow GPIO calls to sleep
 - jadard: Support TAIGUAN XTI05101-01A
 - lxd: Support LXD M9189A plus DT bindings
 - mantix: Fix pixel clock; Clean up
 - motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings
 - novatek: Support Novatek/Tianma NT37700F plus DT bindings
 - renesas: Clean up
 - simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip
   PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3"
   - clean up DT bindings of various drivers
 
 panthor:
 - fix fence handling
 
 vc4:
 - check return value of platform_get_irq_byname()
 -----BEGIN PGP SIGNATURE-----
 
 iQFPBAABCgA5FiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmmycX0bFIAAAAAABAAO
 bWFudTIsMi41KzEuMTIsMiwyAAoJEGgNwR1TC3ojt1cH/1OoLz0cc0wZ0VM/f8t/
 Ha81Ff4mVOS5j2x3V0m+SZrljKl4qgfTka6CYfhHn9aqVS27pkB2My4vtq6h3EXQ
 apfKIqhgMjVpJxin9fbSb29JGt+/NtuUEFbq+s356SF2L5RZ8fGEWmdETsNfItvj
 lLZOkvys/9MWRyCjO4pOD6kyJul2Bg+79hJ1H3IdE62WNyVM1FNVcMWIBsWdigBG
 o5wJv+RQ9sffD7zNiw122AI+Zr+elCeXekqMZghIP8Su+JkjfEMsr0AGpsqpvFbJ
 TsdFR52ZZR4fEzwZZnrn4gTGN3xPSUIpWcSXrOkm7gp5d4ZVE/X9diavrzJFb0vg
 uM8=
 =TJlw
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-2026-03-12' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v7.1:

UAPI Changes:

amdxdna:
- Add sensors ioctls

Cross-subsystem Changes:

dma-buf:
- clean pages with helpers

Documenatation:
- devicetree: Add lxd vendor prefix

Core Changes:

buddy:
- improve aligned allocations

gem-shmem:
- Track page accessed/dirty status across mmap/vmap

ttm:
- fix fence signalling

Driver Changes:

amdxdna:
- provide NPU power estimate
- support sensor for column utilization

bridge:
- anx7625: Fix USB Type-C handling
- cdns-mhdp8546-core: Handle HDCP state in bridge atomic_check

ivpu:
- fixes

loongson:
- replace custom code with drm_gem_ttm_dumb_map_offset()

mxsfb:
- lcdif: report probing errors with dev_err_probe()

panel:
- ilitek-ili9882t: Allow GPIO calls to sleep
- jadard: Support TAIGUAN XTI05101-01A
- lxd: Support LXD M9189A plus DT bindings
- mantix: Fix pixel clock; Clean up
- motorola: Support Motorola Atrix 4G and Droid X2 plus DT bindings
- novatek: Support Novatek/Tianma NT37700F plus DT bindings
- renesas: Clean up
- simple: Support EDT ET057023UDBA plus DT bindings; Support Powertip
  PH800480T032-ZHC19 plus DT bindings; Support Waveshare 13.3"
  - clean up DT bindings of various drivers

panthor:
- fix fence handling

vc4:
- check return value of platform_get_irq_byname()

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260312075629.GA21234@linux.fritz.box
2026-03-15 07:54:10 +10:00
Francois Dugast
192cb1f5cb drm/pagemap: Enable THP support for GPU memory migration
This enables support for Transparent Huge Pages (THP) for device pages by
using MIGRATE_VMA_SELECT_COMPOUND during migration. It removes the need to
split folios and loop multiple times over all pages to perform required
operations at page level. Instead, we rely on newly introduced support for
higher orders in drm_pagemap and folio-level API.

In Xe, this drastically improves performance when using SVM. The GT stats
below collected after a 2MB page fault show overall servicing is more than
7 times faster, and thanks to reduced CPU overhead the time spent on the
actual copy goes from 23% without THP to 80% with THP:

Without THP:

    svm_2M_pagefault_us: 966
    svm_2M_migrate_us: 942
    svm_2M_device_copy_us: 223
    svm_2M_get_pages_us: 9
    svm_2M_bind_us: 10

With THP:

    svm_2M_pagefault_us: 132
    svm_2M_migrate_us: 128
    svm_2M_device_copy_us: 106
    svm_2M_get_pages_us: 1
    svm_2M_bind_us: 2

v2:
- Fix one occurrence of drm_pagemap_get_devmem_page() (Matthew Brost)

v3:
- Remove migrate_device_split_page() and folio_split_lock, instead rely on
  free_zone_device_folio() to split folios before freeing (Matthew Brost)
- Assert folio order is HPAGE_PMD_ORDER (Matthew Brost)
- Always use folio_set_zone_device_data() in split (Matthew Brost)

v4:
- Warn on compound device page, s/continue/goto next/ (Matthew Brost)

v5:
- Revert warn on compound device page
- s/zone_device_page_init()/zone_device_folio_init() (Matthew Brost)

Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Michal Mrozek <michal.mrozek@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: linux-mm@kvack.org
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260312192126.2024853-5-francois.dugast@intel.com
2026-03-13 18:12:59 -07:00
Matthew Brost
139ab31aea drm/pagemap: Correct cpages calculation for migrate_vma_setup
cpages returned from migrate_vma_setup represents the total number of
individual pages found, not the number of 4K pages. The math in
drm_pagemap_migrate_to_devmem for npages is based on the number of 4K
pages, so cpages != npages can fail even if the entire memory range is
found in migrate_vma_setup (e.g., when a single 2M page is found).
Add drm_pagemap_cpages, which converts cpages to the number of 4K pages
found.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: linux-mm@kvack.org
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: Balbir Singh <balbirs@nvidia.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260312192126.2024853-4-francois.dugast@intel.com
2026-03-13 18:12:51 -07:00
Francois Dugast
2e03c0c5c5 drm/pagemap: Add helper to access zone_device_data
This new helper helps ensure all accesses to zone_device_data use the
correct API whether the page is part of a folio or not.

v2:
- Move to drm_pagemap.h, stick to folio_zone_device_data (Matthew Brost)
- Return struct drm_pagemap_zdd * (Matthew Brost)

v3:
- Add stub for !CONFIG_ZONE_DEVICE (CI)

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: linux-mm@kvack.org
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260312192126.2024853-3-francois.dugast@intel.com
2026-03-13 18:12:07 -07:00
Francois Dugast
440ec190c2 drm/pagemap: Unlock and put folios when possible
If the page is part of a folio, unlock and put the whole folio at once
instead of individual pages one after the other. This will reduce the
amount of operations once device THP are in use.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: linux-mm@kvack.org
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Reviewed-by: Balbir Singh <balbirs@nvidia.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260312192126.2024853-2-francois.dugast@intel.com
2026-03-13 18:12:06 -07:00
Matthew Brost
4f3a998a17 drm/xe: Open-code GGTT MMIO access protection
GGTT MMIO access is currently protected by hotplug (drm_dev_enter),
which works correctly when the driver loads successfully and is later
unbound or unloaded. However, if driver load fails, this protection is
insufficient because drm_dev_unplug() is never called.

Additionally, devm release functions cannot guarantee that all BOs with
GGTT mappings are destroyed before the GGTT MMIO region is removed, as
some BOs may be freed asynchronously by worker threads.

To address this, introduce an open-coded flag, protected by the GGTT
lock, that guards GGTT MMIO access. The flag is cleared during the
dev_fini_ggtt devm release function to ensure MMIO access is disabled
once teardown begins.

Cc: stable@vger.kernel.org
Fixes: 919bb54e98 ("drm/xe: Fix missing runtime outer protection for ggtt_remove_node")
Reviewed-by: Zhanjun Dong <zhanjun.dong@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260310225039.1320161-8-zhanjun.dong@intel.com
2026-03-13 18:04:15 -07:00
Zhanjun Dong
9a9d960dce drm/xe/uc: Drop xe_guc_sanitize in favor of managed cleanup
If the firmware fails to load in GT resets the device is wedged also
initiating a GuC state cleanup.

Signed-off-by: Zhanjun Dong <zhanjun.dong@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260310225039.1320161-7-zhanjun.dong@intel.com
2026-03-13 18:04:15 -07:00
Zhanjun Dong
dace8cb003 drm/xe/guc: Ensure CT state transitions via STOP before DISABLED
The GuC CT state transition requires moving to the STOP state before
entering the DISABLED state. Update the driver teardown sequence to make
the proper state machine transitions.

Fixes: ee4b32220a ("drm/xe/guc: Add devm release action to safely tear down CT")
Cc: stable@vger.kernel.org
Signed-off-by: Zhanjun Dong <zhanjun.dong@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260310225039.1320161-6-zhanjun.dong@intel.com
2026-03-13 18:04:15 -07:00
Zhanjun Dong
a7f607610d drm/xe: Use XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET enum instead of magic number
Replace the magic number 2 with the proper enum value
XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET for better code readability
and maintainability.

Signed-off-by: Zhanjun Dong <zhanjun.dong@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260310225039.1320161-5-zhanjun.dong@intel.com
2026-03-13 18:04:15 -07:00
Matthew Brost
e25ba41c82 drm/xe: Trigger queue cleanup if not in wedged mode 2
The intent of wedging a device is to allow queues to continue running
only in wedged mode 2. In other modes, queues should initiate cleanup
and signal all remaining fences. Fix xe_guc_submit_wedge to correctly
clean up queues when wedge mode != 2.

Fixes: 7dbe8af13c ("drm/xe: Wedge the entire device")
Cc: stable@vger.kernel.org
Reviewed-by: Zhanjun Dong <zhanjun.dong@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260310225039.1320161-4-zhanjun.dong@intel.com
2026-03-13 18:04:11 -07:00