linux-block.git
7 months agoMerge tag 'drm-misc-next-2025-02-12' of https://gitlab.freedesktop.org/drm/misc/kerne...
Dave Airlie [Fri, 14 Feb 2025 00:17:26 +0000 (10:17 +1000)]
Merge tag 'drm-misc-next-2025-02-12' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.15:

UAPI Changes:

fourcc:
- Add modifiers for MediaTek tiled formats

Cross-subsystem Changes:

bus:
- mhi: Enable image transfer via BHIe in PBL

dma-buf:
- Add fast-path for single-fence merging

Core Changes:

atomic helper:
- Allow full modeset on connector changes
- Clarify semantics of allow_modeset
- Clarify semantics of drm_atomic_helper_check()

buddy allocator:
- Fix multi-root cleanup

ci:
- Update IGT

display:
- dp: Support Extendeds Wake Timeout
- dp_mst: Fix RAD-to-string conversion

panic:
- Encode QR code according to Fido 2.2

probe helper:
- Cleanups

scheduler:
- Cleanups

ttm:
- Refactor pool-allocation code
- Cleanups

Driver Changes:

amdxdma:
- Fix error handling
- Cleanups

ast:
- Refactor detection of transmitter chips
- Refactor support of VBIOS display-mode handling
- astdp: Fix connection status; Filter unsupported display modes

bridge:
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- sn65dsi86: Fix device IDs
- Cleanups

i915:
- Enable Extendeds Wake Timeout

imagination:
- Check job dependencies with DRM-sched helper

ivpu:
- Improve command-queue handling
- Use workqueue for IRQ handling
- Add suport for HW fault injection
- Locking fixes
- Cleanups

mgag200:
- Add support for G200eH5 chips

msm:
- dpu: Add concurrent writeback support for DPU 10.x+

nouveau:
- Move drm_slave_encoder interface into driver
- nvkm: Refactor GSP RPC

omapdrm:
- Cleanups

panel:
- Convert several panels to multi-style functions to improve error
  handling
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
  LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006,
  Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
  kd110n11-51ie, Starry 2082109qfh040022-50e

panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Cleanups

qaic:
- Add support for AIC200
- Cleanups

renesas:
- Fix limits in DT bindings

rockchip:
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings

solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding

v3d:
- Cleanups

vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure

virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support

vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888

xlnx:
- Set correct DMA segment size
- Fix error handling
- Fix docs

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20250212090625.GA24865@linux.fritz.box
7 months agodrm/edp-panel: Add panel used by T14s Gen6 Snapdragon
Sebastian Reichel [Tue, 11 Feb 2025 01:41:01 +0000 (02:41 +0100)]
drm/edp-panel: Add panel used by T14s Gen6 Snapdragon

The Lenovo Thinkpad T14s Gen6 Snapdragon is currently sold with three
different panel versions: OLED, Low Power IPS or IPS with Touchscreen.

My Low Power IPS version had this panel and the kernel complained
about not knowing any details.  I don't have any panel documentation,
but as far as I can see the same timings for the already supported
CSO panel also work for this one.

The raw EDID is:

00 ff ff ff ff ff ff 00 0e 6f 13 14 00 00 00 00
00 1e 01 04 a5 1e 13 78 03 82 53 a4 55 4d 9b 24
0d 51 55 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 35 3c 80 a0 70 b0 23 40 30 20
36 00 2e bd 10 00 00 18 00 00 00 fd 00 30 3c 4a
4a 0f 01 0a 20 20 20 20 20 20 00 00 00 fe 00 43
53 4f 54 20 54 33 0a 20 20 20 20 20 00 00 00 fe
00 4d 4e 45 30 30 37 4a 41 31 2d 32 0a 20 00 8b

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211014314.94429-1-sre@ring0.de
7 months agodrm: xlnx: zynqmp_dpsub: Add NULL check in zynqmp_audio_init
Charles Han [Tue, 11 Feb 2025 10:20:49 +0000 (18:20 +0800)]
drm: xlnx: zynqmp_dpsub: Add NULL check in zynqmp_audio_init

devm_kasprintf() calls can return null pointers on failure.
But some return values were not checked in zynqmp_audio_init().

Add NULL check in zynqmp_audio_init(), avoid referencing null
pointers in the subsequent code.

Fixes: 3ec5c1579305 ("drm: xlnx: zynqmp_dpsub: Add DP audio support")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Charles Han <hanchunchao@inspur.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250211102049.6468-1-hanchunchao@inspur.com
7 months agodrm: xlnx: zynqmp: Fix max dma segment size
Tomi Valkeinen [Wed, 15 Jan 2025 09:03:39 +0000 (11:03 +0200)]
drm: xlnx: zynqmp: Fix max dma segment size

Fix "mapping sg segment longer than device claims to support" warning by
setting the max segment size.

Fixes: d76271d22694 ("drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem")
Reviewed-by: Sean Anderson <sean.anderson@linux.dev>
Tested-by: Sean Anderson <sean.anderson@linux.dev>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250115-xilinx-formats-v2-10-160327ca652a@ideasonboard.com
7 months agodrm/mgag200: Added support for the new device G200eH5
Gwenael Georgeault [Fri, 7 Feb 2025 19:04:29 +0000 (14:04 -0500)]
drm/mgag200: Added support for the new device G200eH5

- Added the new device ID
- Added new pll algorithm

Signed-off-by: Gwenael Georgeault <ggeorgea@matrox.com>
Co-authored-by: Mamadou Insa Diop <mdiop@matrox.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/alpine.LFD.2.00.2502071401180.14188@pluton.matrox.com
7 months agodrm/ast: astdp: Validate display modes
Thomas Zimmermann [Tue, 4 Feb 2025 13:26:40 +0000 (14:26 +0100)]
drm/ast: astdp: Validate display modes

Validate each display mode against the astdp transmitter chips. Filters
out modes that the chip does not support.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-5-tzimmermann@suse.de
7 months agodrm/ast: astdp: Store mode index in connector state
Thomas Zimmermann [Tue, 4 Feb 2025 13:26:39 +0000 (14:26 +0100)]
drm/ast: astdp: Store mode index in connector state

Look up the mode index for the astdp transmitter ship in the encoder's
atomic check and report an error if the display mode is not supported.

The lookup uses the DRM display mode instead of the driver's internal
VBIOS mode. Both are equivalent. The modesetting code later reads
the calculated index from the connector state to avoid recalculating it.

v2:
- fix typo in commit message (Jocelyn)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-4-tzimmermann@suse.de
7 months agodrm/ast: astdp: Inline mode-index calculation
Thomas Zimmermann [Tue, 4 Feb 2025 13:26:38 +0000 (14:26 +0100)]
drm/ast: astdp: Inline mode-index calculation

Programming the astdp transmitter chip requires a magic value for
individual modes. Inline the helper for calculating the value into
its only caller (i.e., the encoder's atomic_mode_set).

With further refactoring, the atomic check will be able to detect
invalid modes before attempting to program them.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-3-tzimmermann@suse.de
7 months agodrm/ast: astdp: Add connector state
Thomas Zimmermann [Tue, 4 Feb 2025 13:26:37 +0000 (14:26 +0100)]
drm/ast: astdp: Add connector state

Add dedicated connector state for ASTDP connectors. The state will
store values for programming the transmitter chip.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-2-tzimmermann@suse.de
7 months agodrm/bridge: dw-hdmi: Sync comment block with actual bus formats order
Cristian Ciocaltea [Tue, 4 Feb 2025 17:44:38 +0000 (19:44 +0200)]
drm/bridge: dw-hdmi: Sync comment block with actual bus formats order

Commit d3d6b1bf85ae ("drm: bridge: dw_hdmi: fix preference of RGB modes
over YUV420") changed the order of the output bus formats, but missed to
update accordingly the "Possible output formats" comment section above
dw_hdmi_bridge_atomic_get_output_bus_fmts().

Fix the misleading comment block and a context related typo.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204-dw-hdmi-bus-fmt-order-v2-1-d0aaeb7a697a@collabora.com
7 months agodrm/bridge: ti-sn65dsi86: remove unused drm_panel.h include
Luca Ceresoli [Thu, 6 Feb 2025 17:02:40 +0000 (18:02 +0100)]
drm/bridge: ti-sn65dsi86: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-8-93df60faa756@bootlin.com
7 months agodrm/bridge: ti-sn65dsi83: remove unused drm_panel.h include
Luca Ceresoli [Thu, 6 Feb 2025 17:02:39 +0000 (18:02 +0100)]
drm/bridge: ti-sn65dsi83: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-7-93df60faa756@bootlin.com
7 months agodrm/bridge: tc358775: remove unused drm_panel.h include
Luca Ceresoli [Thu, 6 Feb 2025 17:02:38 +0000 (18:02 +0100)]
drm/bridge: tc358775: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-6-93df60faa756@bootlin.com
7 months agodrm/bridge: tc358762: remove unused drm_panel.h include, add drm_bridge.h
Luca Ceresoli [Thu, 6 Feb 2025 17:02:37 +0000 (18:02 +0100)]
drm/bridge: tc358762: remove unused drm_panel.h include, add drm_bridge.h

The file uses the panel_bridge APIs from drm_bridge.h, which is included
only indirectly, and uses no drm_panel APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-5-93df60faa756@bootlin.com
7 months agodrm/bridge: parade-ps8640: remove unused drm_panel.h include
Luca Ceresoli [Thu, 6 Feb 2025 17:02:36 +0000 (18:02 +0100)]
drm/bridge: parade-ps8640: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-4-93df60faa756@bootlin.com
7 months agodrm/bridge: parade-ps8622: remove unused drm_panel.h include
Luca Ceresoli [Thu, 6 Feb 2025 17:02:35 +0000 (18:02 +0100)]
drm/bridge: parade-ps8622: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-3-93df60faa756@bootlin.com
7 months agodrm/bridge: nxp-ptn3460: remove unused drm_panel.h include
Luca Ceresoli [Thu, 6 Feb 2025 17:02:34 +0000 (18:02 +0100)]
drm/bridge: nxp-ptn3460: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-2-93df60faa756@bootlin.com
7 months agodrm/panel: remove unnecessary forward declaration
Luca Ceresoli [Thu, 6 Feb 2025 17:02:33 +0000 (18:02 +0100)]
drm/panel: remove unnecessary forward declaration

'struct drm_device' is not used at all in this file since commit
aa6c43644bc5 ("drm/panel: drop drm_device from drm_panel").

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-1-93df60faa756@bootlin.com
7 months agodrm/panel: panel-himax-hx83102: support for starry-2082109qfh040022-50e MIPI-DSI...
Langyan Ye [Sat, 8 Feb 2025 10:53:26 +0000 (18:53 +0800)]
drm/panel: panel-himax-hx83102: support for starry-2082109qfh040022-50e MIPI-DSI panel

The starry-2082109qfh040022-50e is a 10.95" TFT panel. The MIPI controller
on this panel is the same as the other panels here, so add this panel to
this driver.

Signed-off-by: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250208105326.3850358-4-yelangyan@huaqin.corp-partner.google.com
7 months agodrm/panel: panel-himax-hx83102: support for kingdisplay-kd110n11-51ie MIPI-DSI panel
Langyan Ye [Sat, 8 Feb 2025 10:53:25 +0000 (18:53 +0800)]
drm/panel: panel-himax-hx83102: support for kingdisplay-kd110n11-51ie MIPI-DSI panel

The kingdisplay-kd110n11-51ie is a 10.95" TFT panel. The MIPI controller
on this panel is the same as the other panels here, so add this panel
to this driver.

Signed-off-by: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250208105326.3850358-3-yelangyan@huaqin.corp-partner.google.com
7 months agodt-bindings: display: panel: Add KD110N11-51IE and 2082109QFH040022-50E
Langyan Ye [Sat, 8 Feb 2025 10:53:24 +0000 (18:53 +0800)]
dt-bindings: display: panel: Add KD110N11-51IE and 2082109QFH040022-50E

Add a new compatible for the panels KINGDISPLAY KD110N11-51IE and
STARRY 2082109QFH040022-50E. Both panels use the HX83102 IC, so
add the compatible to the hx83102 bindings file.

Signed-off-by: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250208105326.3850358-2-yelangyan@huaqin.corp-partner.google.com
7 months agodrm/bridge: convert to use devm_platform_ioremap_resource()
Shixiong Ou [Thu, 6 Feb 2025 07:17:13 +0000 (15:17 +0800)]
drm/bridge: convert to use devm_platform_ioremap_resource()

convert to use devm_platform_ioremap_resource().

Signed-off-by: Shixiong Ou <oushixiong@kylinos.cn>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Reviewed-and-tested-by: Dharma Balasubiramani <dharma.b@microchip.com>
Reviewed-by: Dharma Balasubiramani <dharma.b@microchip.com>
Tested-by: Dharma Balasubiramani <dharma.b@microchip.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206071713.180471-1-oushixiong1025@163.com
7 months agodrm/ttm: use ttm_resource_unevictable() to replace pin_count and swapped
Zhaoyu Liu [Sun, 26 Jan 2025 09:32:56 +0000 (17:32 +0800)]
drm/ttm: use ttm_resource_unevictable() to replace pin_count and swapped

TTM always uses pin_count and ttm_resource_is_swapped() together to
determine whether a BO is unevictable.
Now use ttm_resource_unevictable() to replace them.

Signed-off-by: Zhaoyu Liu <liuzhaoyu.zackary@bytedance.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250126093256.GA688734@bytedance
Signed-off-by: Christian König <christian.koenig@amd.com>
7 months agoaccel/ivpu: Implement D0i2 disable test mode
Karol Wachowski [Tue, 4 Feb 2025 08:46:22 +0000 (09:46 +0100)]
accel/ivpu: Implement D0i2 disable test mode

Add power_profile firmware boot param and set it to 0 by default
which is default FW power profile.

Implement IVPU_TEST_MODE_D0I2_DISABLE which is used for setting
power profile boot param value to 1 which prevents NPU from entering
d0i2 power state.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-7-jacek.lawrynowicz@linux.intel.com
7 months agoaccel/ivpu: Add test modes to toggle clock relinquish disable
Karol Wachowski [Tue, 4 Feb 2025 08:46:21 +0000 (09:46 +0100)]
accel/ivpu: Add test modes to toggle clock relinquish disable

Add IVPU_TEST_MODE_CLK_RELINQ_[DISABLE|ENABLE] that overrides
workaround for disabling clock relinquish for testing purposes.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-6-jacek.lawrynowicz@linux.intel.com
7 months agoaccel/ivpu: Allow to import single buffer into multiple contexts
Tomasz Rusinowicz [Tue, 4 Feb 2025 08:46:20 +0000 (09:46 +0100)]
accel/ivpu: Allow to import single buffer into multiple contexts

Use ivpu_gem_prime_import() based on drm_gem_prime_import_dev()
for importing buffers, removing optimization for same device
imports. This optimization reused the same ivpu_bo object in multiple
contexts but a single buffer can be MMU-mapped only to a single context.
Each import now creates a new instance of ivpu_bo object that shares
the same sg_table but have separate MMU mappings.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Tomasz Rusinowicz <tomasz.rusinowicz@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-5-jacek.lawrynowicz@linux.intel.com
7 months agoaccel/ivpu: Add debugfs interface for setting HWS priority bands
Karol Wachowski [Tue, 4 Feb 2025 08:46:19 +0000 (09:46 +0100)]
accel/ivpu: Add debugfs interface for setting HWS priority bands

Add debugfs interface to modify following priority bands properties:
 * grace period
 * process grace period
 * process quantum

This allows for the adjustment of hardware scheduling algorithm parameters
for each existing priority band, facilitating validation and fine-tuning.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Karol Wachowski <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-4-jacek.lawrynowicz@linux.intel.com
7 months agoaccel/ivpu: Prevent runtime suspend during context abort work
Andrzej Kacprowski [Tue, 4 Feb 2025 08:46:18 +0000 (09:46 +0100)]
accel/ivpu: Prevent runtime suspend during context abort work

Increment the runtime PM counter when entering
ivpu_context_abort_work_fn() to prevent the device
from suspending while the function is executing.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Andrzej Kacprowski <Andrzej.Kacprowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-3-jacek.lawrynowicz@linux.intel.com
7 months agoaccel/ivpu: Add missing locks around mmu queues
Andrzej Kacprowski [Tue, 4 Feb 2025 08:46:17 +0000 (09:46 +0100)]
accel/ivpu: Add missing locks around mmu queues

Multiple threads were accessing mmu cmd queue simultaneously
causing sporadic failures in ivpu_mmu_cmdq_sync() function.
Protect critical code with mmu mutex.

Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Andrzej Kacprowski <Andrzej.Kacprowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204084622.2422544-2-jacek.lawrynowicz@linux.intel.com
7 months agoLinux 6.14-rc2 v6.14-rc2
Linus Torvalds [Sun, 9 Feb 2025 20:45:03 +0000 (12:45 -0800)]
Linux 6.14-rc2

7 months agoMerge tag 'kbuild-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masah...
Linus Torvalds [Sun, 9 Feb 2025 18:05:32 +0000 (10:05 -0800)]
Merge tag 'kbuild-fixes-v6.14' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Suppress false-positive -Wformat-{overflow,truncation}-non-kprintf
   warnings regardless of the W= option

 - Avoid CONFIG_TRIM_UNUSED_KSYMS dropping symbols passed to symbol_get()

 - Fix a build regression of the Debian linux-headers package

* tag 'kbuild-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: install-extmod-build: add missing quotation marks for CC variable
  kbuild: fix misspelling in scripts/Makefile.lib
  kbuild: keep symbols for symbol_get() even with CONFIG_TRIM_UNUSED_KSYMS
  scripts/Makefile.extrawarn: Do not show clang's non-kprintf warnings at W=1

7 months agoMerge tag 'pm-6.14-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sun, 9 Feb 2025 17:47:06 +0000 (09:47 -0800)]
Merge tag 'pm-6.14-rc2-2' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a recently introduced kernel crash due to a NULL pointer
  dereference during system-wide suspend (Rafael Wysocki)"

* tag 'pm-6.14-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: sleep: core: Restrict power.set_active propagation

7 months agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 9 Feb 2025 17:41:38 +0000 (09:41 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Correctly clean the BSS to the PoC before allowing EL2 to access it
     on nVHE/hVHE/protected configurations

   - Propagate ownership of debug registers in protected mode after the
     rework that landed in 6.14-rc1

   - Stop pretending that we can run the protected mode without a GICv3
     being present on the host

   - Fix a use-after-free situation that can occur if a vcpu fails to
     initialise the NV shadow S2 MMU contexts

   - Always evaluate the need to arm a background timer for fully
     emulated guest timers

   - Fix the emulation of EL1 timers in the absence of FEAT_ECV

   - Correctly handle the EL2 virtual timer, specially when HCR_EL2.E2H==0

  s390:

   - move some of the guest page table (gmap) logic into KVM itself,
     inching towards the final goal of completely removing gmap from the
     non-kvm memory management code.

     As an initial set of cleanups, move some code from mm/gmap into kvm
     and start using __kvm_faultin_pfn() to fault-in pages as needed;
     but especially stop abusing page->index and page->lru to aid in the
     pgdesc conversion.

  x86:

   - Add missing check in the fix to defer starting the huge page
     recovery vhost_task

   - SRSO_USER_KERNEL_NO does not need SYNTHESIZED_F"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (31 commits)
  KVM: x86/mmu: Ensure NX huge page recovery thread is alive before waking
  KVM: remove kvm_arch_post_init_vm
  KVM: selftests: Fix spelling mistake "initally" -> "initially"
  kvm: x86: SRSO_USER_KERNEL_NO is not synthesized
  KVM: arm64: timer: Don't adjust the EL2 virtual timer offset
  KVM: arm64: timer: Correctly handle EL1 timer emulation when !FEAT_ECV
  KVM: arm64: timer: Always evaluate the need for a soft timer
  KVM: arm64: Fix nested S2 MMU structures reallocation
  KVM: arm64: Fail protected mode init if no vgic hardware is present
  KVM: arm64: Flush/sync debug state in protected mode
  KVM: s390: selftests: Streamline uc_skey test to issue iske after sske
  KVM: s390: remove the last user of page->index
  KVM: s390: move PGSTE softbits
  KVM: s390: remove useless page->index usage
  KVM: s390: move gmap_shadow_pgt_lookup() into kvm
  KVM: s390: stop using lists to keep track of used dat tables
  KVM: s390: stop using page->index for non-shadow gmaps
  KVM: s390: move some gmap shadowing functions away from mm/gmap.c
  KVM: s390: get rid of gmap_translate()
  KVM: s390: get rid of gmap_fault()
  ...

7 months agodrm/virtio: Add drm_panic support
Ryosuke Yasuoka [Thu, 6 Feb 2025 10:42:59 +0000 (19:42 +0900)]
drm/virtio: Add drm_panic support

Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs. It is supported where it has
vmapped shmem BO.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Signed-off-by: Ryosuke Yasuoka <ryasuoka@redhat.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206104300.416014-1-ryasuoka@redhat.com
7 months agoPM: sleep: core: Restrict power.set_active propagation
Rafael J. Wysocki [Sat, 8 Feb 2025 17:54:28 +0000 (18:54 +0100)]
PM: sleep: core: Restrict power.set_active propagation

Commit 3775fc538f53 ("PM: sleep: core: Synchronize runtime PM status of
parents and children") exposed an issue related to simple_pm_bus_pm_ops
that uses pm_runtime_force_suspend() and pm_runtime_force_resume() as
bus type PM callbacks for the noirq phases of system-wide suspend and
resume.

The problem is that pm_runtime_force_suspend() does not distinguish
runtime-suspended devices from devices for which runtime PM has never
been enabled, so if it sees a device with runtime PM status set to
RPM_ACTIVE, it will assume that runtime PM is enabled for that device
and so it will attempt to suspend it with the help of its runtime PM
callbacks which may not be ready for that.  As it turns out, this
causes simple_pm_bus_runtime_suspend() to crash due to a NULL pointer
dereference.

Another problem related to the above commit and simple_pm_bus_pm_ops is
that setting runtime PM status of a device handled by the latter to
RPM_ACTIVE will actually prevent it from being resumed because
pm_runtime_force_resume() only resumes devices with runtime PM status
set to RPM_SUSPENDED.

To mitigate these issues, do not allow power.set_active to propagate
beyond the parent of the device with DPM_FLAG_SMART_SUSPEND set that
will need to be resumed, which should be a sufficient stop-gap for the
time being, but they will need to be properly addressed in the future
because in general during system-wide resume it is necessary to resume
all devices in a dependency chain in which at least one device is going
to be resumed.

Fixes: 3775fc538f53 ("PM: sleep: core: Synchronize runtime PM status of parents and children")
Closes: https://lore.kernel.org/linux-pm/1c2433d4-7e0f-4395-b841-b8eac7c25651@nvidia.com/
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/6137505.lOV4Wx5bFT@rjwysocki.net
7 months agoMerge tag 'hardening-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 8 Feb 2025 22:12:17 +0000 (14:12 -0800)]
Merge tag 'hardening-v6.14-rc2' of git://git./linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:
 "Address a KUnit stack initialization regression that got tickled on
  m68k, and solve a Clang(v14 and earlier) bug found by 0day:

   - Fix stackinit KUnit regression on m68k

   - Use ARRAY_SIZE() for memtostr*()/strtomem*()"

* tag 'hardening-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  string.h: Use ARRAY_SIZE() for memtostr*()/strtomem*()
  compiler.h: Introduce __must_be_byte_array()
  compiler.h: Move C string helpers into C-only kernel section
  stackinit: Fix comment for test_small_end
  stackinit: Keep selftest union size small on m68k

7 months agoMerge tag 'seccomp-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...
Linus Torvalds [Sat, 8 Feb 2025 22:04:21 +0000 (14:04 -0800)]
Merge tag 'seccomp-v6.14-rc2' of git://git./linux/kernel/git/kees/linux

Pull seccomp fix from Kees Cook:
 "This is really a work-around for x86_64 having grown a syscall to
  implement uretprobe, which has caused problems since v6.11.

  This may change in the future, but for now, this fixes the unintended
  seccomp filtering when uretprobe switched away from traps, and does so
  with something that should be easy to backport.

   - Allow uretprobe on x86_64 to avoid behavioral complications (Eyal
     Birger)"

* tag 'seccomp-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  selftests/seccomp: validate uretprobe syscall passes through seccomp
  seccomp: passthrough uretprobe systemcall without filtering

7 months agoMerge tag 'execve-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...
Linus Torvalds [Sat, 8 Feb 2025 21:59:24 +0000 (13:59 -0800)]
Merge tag 'execve-v6.14-rc2' of git://git./linux/kernel/git/kees/linux

Pull execve fix from Kees Cook:
 "This is an alpha-specific fix, but since it touched ELF I was asked to
  carry it.

   - alpha/elf: Fix misc/setarch test of util-linux by removing 32bit
     support (Eric W. Biederman)"

* tag 'execve-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  alpha/elf: Fix misc/setarch test of util-linux by removing 32bit support

7 months agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 8 Feb 2025 21:45:34 +0000 (13:45 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "A number of fairly small fixes, mostly in drivers but two in the core
  to change a retry for depopulation (a trendy new hdd thing that
  reorganizes blocks away from failing elements) and one to fix a GFP_
  annotation to avoid a lock dependency (the third core patch is all in
  testing)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla1280: Fix kernel oops when debug level > 2
  scsi: ufs: core: Fix error return with query response
  scsi: storvsc: Set correct data length for sending SCSI command without payload
  scsi: ufs: core: Fix use-after free in init error and remove paths
  scsi: core: Do not retry I/Os during depopulation
  scsi: core: Use GFP_NOIO to avoid circular locking dependency
  scsi: ufs: Fix toggling of clk_gating.state when clock gating is not allowed
  scsi: ufs: core: Ensure clk_gating.lock is used only after initialization
  scsi: ufs: core: Simplify temperature exception event handling
  scsi: target: core: Add line break to status show
  scsi: ufs: core: Fix the HIGH/LOW_TEMP Bit Definitions
  scsi: core: Add passthrough tests for success and no failure definitions

7 months agoMerge tag 'i2c-for-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 8 Feb 2025 21:35:17 +0000 (13:35 -0800)]
Merge tag 'i2c-for-6.14-rc2' of git://git./linux/kernel/git/wsa/linux

Pull i2c reverts from Wolfram Sang:
 "It turned out the new mechanism for handling created devices does not
  handle all muxing cases.

  Revert the changes to give a proper solution more time"

* tag 'i2c-for-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  Revert "i2c: Replace list-based mechanism for handling auto-detected clients"
  Revert "i2c: Replace list-based mechanism for handling userspace-created clients"

7 months agoMerge tag 'rust-fixes-6.14' of https://github.com/Rust-for-Linux/linux
Linus Torvalds [Sat, 8 Feb 2025 20:22:21 +0000 (12:22 -0800)]
Merge tag 'rust-fixes-6.14' of https://github.com/Rust-for-Linux/linux

Pull rust fixes from Miguel Ojeda:

 - Do not export KASAN ODR symbols to avoid gendwarfksyms warnings

 - Fix future Rust 1.86.0 (to be released 2025-04-03) x86_64 builds

 - Clean future Rust 1.86.0 (to be released 2025-04-03) warning

 - Fix future GCC 15 (to be released in a few months) builds

 - Fix `rusttest` target in macOS

* tag 'rust-fixes-6.14' of https://github.com/Rust-for-Linux/linux:
  x86: rust: set rustc-abi=x86-softfloat on rustc>=1.86.0
  rust: kbuild: do not export generated KASAN ODR symbols
  rust: kbuild: add -fzero-init-padding-bits to bindgen_skip_cflags
  rust: init: use explicit ABI to clean warning in future compilers
  rust: kbuild: use host dylib naming in rusttestlib-kernel

7 months agoMerge tag 'ftrace-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Sat, 8 Feb 2025 20:18:02 +0000 (12:18 -0800)]
Merge tag 'ftrace-v6.14-rc1' of git://git./linux/kernel/git/trace/linux-trace

Pull ftrace fix from Steven Rostedt:
 "Function graph fix of notrace functions.

  When the function graph tracer was restructured to use the global
  section of the meta data in the shadow stack, the bit logic was
  changed. There's a TRACE_GRAPH_NOTRACE_BIT that is the bit number in
  the mask that tells if the function graph tracer is currently in the
  "notrace" mode. The TRACE_GRAPH_NOTRACE is the mask with that bit set.

  But when the code we restructured, the TRACE_GRAPH_NOTRACE_BIT was
  used when it should have been the TRACE_GRAPH_NOTRACE mask. This made
  notrace not work properly"

* tag 'ftrace-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  fgraph: Fix set_graph_notrace with setting TRACE_GRAPH_NOTRACE_BIT

7 months agoMerge tag 'x86-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 8 Feb 2025 20:04:00 +0000 (12:04 -0800)]
Merge tag 'x86-urgent-2025-02-08' of git://git./linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:
 "Fix a build regression on GCC 15 builds, caused by GCC changing the
  default C version that is overriden in the main Makefile but not in
  the x86 boot code Makefile"

* tag 'x86-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Use '-std=gnu11' to fix build with GCC 15

7 months agoMerge tag 'timers-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 8 Feb 2025 19:55:03 +0000 (11:55 -0800)]
Merge tag 'timers-urgent-2025-02-08' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Ingo Molnar:
 "Fix a PREEMPT_RT bug in the clocksource verification code that caused
  false positive warnings.

  Also fix a timer migration setup bug when new CPUs are added"

* tag 'timers-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/migration: Fix off-by-one root mis-connection
  clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context

7 months agoMerge tag 'sched-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 8 Feb 2025 19:16:22 +0000 (11:16 -0800)]
Merge tag 'sched-urgent-2025-02-08' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Fix a cfs_rq->h_nr_runnable accounting bug that trips up a defensive
  SCHED_WARN_ON() on certain workloads. The bug is believed to be
  (accidentally) self-correcting, hence no behavioral side effects are
  expected.

  Also print se.slice in debug output, since this value can now be set
  via the syscall ABI and can be useful to track"

* tag 'sched-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Provide slice length for fair tasks
  sched/fair: Fix inaccurate h_nr_runnable accounting with delayed dequeue

7 months agoMerge tag 'irq-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 8 Feb 2025 19:05:54 +0000 (11:05 -0800)]
Merge tag 'irq-urgent-2025-02-08' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Ingo Molnar:
 "Another followup fix for the procps genirq output formatting
  regression caused by an optimization"

* tag 'irq-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Remove leading space from irq_chip::irq_print_chip() callbacks

7 months agoMerge tag 'locking-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 8 Feb 2025 18:54:11 +0000 (10:54 -0800)]
Merge tag 'locking-urgent-2025-02-08' of git://git./linux/kernel/git/tip/tip

Pull locking fix from Ingo Molnar:
 "Fix a dangling pointer bug in the futex code used by the uring code.

  It isn't causing problems at the moment due to uring ABI limitations
  leaving it essentially unused in current usages, but is a good idea to
  fix nevertheless"

* tag 'locking-urgent-2025-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Pass in task to futex_queue()

7 months agofgraph: Fix set_graph_notrace with setting TRACE_GRAPH_NOTRACE_BIT
Steven Rostedt [Sat, 8 Feb 2025 05:15:11 +0000 (00:15 -0500)]
fgraph: Fix set_graph_notrace with setting TRACE_GRAPH_NOTRACE_BIT

The code was restructured where the function graph notrace code, that
would not trace a function and all its children is done by setting a
NOTRACE flag when the function that is not to be traced is hit.

There's a TRACE_GRAPH_NOTRACE_BIT which defines the bit in the flags and a
TRACE_GRAPH_NOTRACE which is the mask with that bit set. But the
restructuring used TRACE_GRAPH_NOTRACE_BIT when it should have used
TRACE_GRAPH_NOTRACE.

For example:

 # cd /sys/kernel/tracing
 # echo set_track_prepare stack_trace_save  > set_graph_notrace
 # echo function_graph > current_tracer
 # cat trace
[..]
 0)               |                          __slab_free() {
 0)               |                            free_to_partial_list() {
 0)               |                                  arch_stack_walk() {
 0)               |                                    __unwind_start() {
 0)   0.501 us    |                                      get_stack_info();

Where a non filter trace looks like:

 # echo > set_graph_notrace
 # cat trace
 0)               |                            free_to_partial_list() {
 0)               |                              set_track_prepare() {
 0)               |                                stack_trace_save() {
 0)               |                                  arch_stack_walk() {
 0)               |                                    __unwind_start() {

Where the filter should look like:

 # cat trace
 0)               |                            free_to_partial_list() {
 0)               |                              _raw_spin_lock_irqsave() {
 0)   0.350 us    |                                preempt_count_add();
 0)   0.351 us    |                                do_raw_spin_lock();
 0)   2.440 us    |                              }

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20250208001511.535be150@batman.local.home
Fixes: b84214890a9bc ("function_graph: Move graph notrace bit to shadow stack global var")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
7 months agokbuild: Move -Wenum-enum-conversion to W=2
Nathan Chancellor [Thu, 17 Oct 2024 17:09:22 +0000 (10:09 -0700)]
kbuild: Move -Wenum-enum-conversion to W=2

-Wenum-enum-conversion was strengthened in clang-19 to warn for C, which
caused the kernel to move it to W=1 in commit 75b5ab134bb5 ("kbuild:
Move -Wenum-{compare-conditional,enum-conversion} into W=1") because
there were numerous instances that would break builds with -Werror.
Unfortunately, this is not a full solution, as more and more developers,
subsystems, and distributors are building with W=1 as well, so they
continue to see the numerous instances of this warning.

Since the move to W=1, there have not been many new instances that have
appeared through various build reports and the ones that have appeared
seem to be following similar existing patterns, suggesting that most
instances of this warning will not be real issues. The only alternatives
for silencing this warning are adding casts (which is generally seen as
an ugly practice) or refactoring the enums to macro defines or a unified
enum (which may be undesirable because of type safety in other parts of
the code).

Move the warning to W=2, where warnings that occur frequently but may be
relevant should reside.

Cc: stable@vger.kernel.org
Fixes: 75b5ab134bb5 ("kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1")
Link: https://lore.kernel.org/ZwRA9SOcOjjLJcpi@google.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 months agoMerge tag 'v6.14rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 8 Feb 2025 03:23:06 +0000 (19:23 -0800)]
Merge tag 'v6.14rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Three DFS fixes: DFS mount fix, fix for noisy log msg and one to
   remove some unused code

 - SMB3 Lease fix

* tag 'v6.14rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: change lease epoch type from unsigned int to __u16
  smb: client: get rid of kstrdup() in get_ses_refpath()
  smb: client: fix noisy when tree connecting to DFS interlink targets
  smb: client: don't trust DFSREF_STORAGE_SERVER bit

7 months agoMerge tag 'drm-fixes-2025-02-08' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 7 Feb 2025 20:21:54 +0000 (12:21 -0800)]
Merge tag 'drm-fixes-2025-02-08' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Just regular drm fixes, amdgpu, xe and i915 mostly, but a few
  scattered fixes. I think one of the i915 fixes fixes some build combos
  that Guenter was seeing.

  amdgpu:
   - Add new tiling flag for DCC write compress disable
   - Add BO metadata flag for DCC
   - Fix potential out of bounds access in display
   - Seamless boot fix
   - CONFIG_FRAME_WARN fix
   - PSR1 fix

  xe:
   - OA uAPI related fixes
   - Fix SRIOV migration initialization
   - Restore devcoredump to a sane state

  i915:
   - Fix the build error with clamp after WARN_ON on gcc 13.x+
   - HDCP related fixes
   - PMU fix zero delta busyness issue
   - Fix page cleanup on DMA remap failure
   - Drop 64bpp YUV formats from ICL+ SDR planes
   - GuC log related fix
   - DisplayPort related fixes

  ivpu:
   - Fix error handling

  komeda:
   - add return check

  zynqmp:
   - fix locking in DP code

  ast:
   - fix AST DP timeout

  cec:
   - fix broken CEC adapter check"

* tag 'drm-fixes-2025-02-08' of https://gitlab.freedesktop.org/drm/kernel: (29 commits)
  drm/i915/dp: Fix potential infinite loop in 128b/132b SST
  Revert "drm/amd/display: Use HW lock mgr for PSR1"
  drm/amd/display: Respect user's CONFIG_FRAME_WARN more for dml files
  accel/amdxdna: Add MODULE_FIRMWARE() declarations
  drm/i915/dp: Iterate DSC BPP from high to low on all platforms
  drm/xe: Fix and re-enable xe_print_blob_ascii85()
  drm/xe/devcoredump: Move exec queue snapshot to Contexts section
  drm/xe/oa: Set stream->pollin in xe_oa_buffer_check_unlocked
  drm/xe/pf: Fix migration initialization
  drm/xe/oa: Preserve oa_ctrl unused bits
  drm/amd/display: Fix seamless boot sequence
  drm/amd/display: Fix out-of-bound accesses
  drm/amdgpu: add a BO metadata flag to disable write compression for Vulkan
  drm/i915/backlight: Return immediately when scale() finds invalid parameters
  drm/i915/dp: Return min bpc supported by source instead of 0
  drm/i915/dp: fix the Adaptive sync Operation mode for SDP
  drm/i915/guc: Debug print LRC state entries only if the context is pinned
  drm/i915: Drop 64bpp YUV formats from ICL+ SDR planes
  drm/i915: Fix page cleanup on DMA remap failure
  drm/i915/pmu: Fix zero delta busyness issue
  ...

7 months agoMerge tag 'stable/for-linus-6.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Fri, 7 Feb 2025 19:05:50 +0000 (11:05 -0800)]
Merge tag 'stable/for-linus-6.14-rc1-tag' of git://git./linux/kernel/git/konrad/ibft

Pull ibft fixes from Konrad Rzeszutek Wilk:
 "Two tiny fixes to IBFT code: one for Kconfig and another for IPv6"

* tag 'stable/for-linus-6.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft:
  iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic()
  firmware: iscsi_ibft: fix ISCSI_IBFT Kconfig entry

7 months agoMerge tag 'block-6.14-20250207' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 7 Feb 2025 19:00:33 +0000 (11:00 -0800)]
Merge tag 'block-6.14-20250207' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - MD pull request via Song:
      - fix an error handling path for md-linear

 - NVMe pull request via Keith:
      - Connection fixes for fibre channel transport (Daniel)
      - Endian fixes (Keith, Christoph)
      - Cleanup fix for host memory buffer (Francis)
      - Platform specific power quirks (Georg)
      - Target memory leak (Sagi)
      - Use appropriate controller state accessor (Daniel)

 - Fixup for a regression introduced last week, where sunvdc wasn't
   updated for an API change, causing compilation failures on sparc64.

* tag 'block-6.14-20250207' of git://git.kernel.dk/linux:
  drivers/block/sunvdc.c: update the correct AIP call
  md: Fix linear_set_limits()
  nvme-fc: use ctrl state getter
  nvme: make nvme_tls_attrs_group static
  nvmet: add a missing endianess conversion in nvmet_execute_admin_connect
  nvmet: the result field in nvmet_alloc_ctrl_args is little endian
  nvmet: fix a memory leak in controller identify
  nvme-fc: do not ignore connectivity loss during connecting
  nvme: handle connectivity loss in nvme_set_queue_count
  nvme-fc: go straight to connecting state when initializing
  nvme-pci: Add TUXEDO IBP Gen9 to Samsung sleep quirk
  nvme-pci: Add TUXEDO InfinityFlex to Samsung sleep quirk
  nvme-pci: remove redundant dma frees in hmb
  nvmet: fix rw control endian access

7 months agokbuild: install-extmod-build: add missing quotation marks for CC variable
WangYuli [Fri, 7 Feb 2025 07:08:55 +0000 (15:08 +0800)]
kbuild: install-extmod-build: add missing quotation marks for CC variable

While attempting to build a Debian packages with CC="ccache gcc", I
saw the following error as builddeb builds linux-headers-$KERNELVERSION:

  make HOSTCC=ccache gcc VPATH= srcroot=. -f ./scripts/Makefile.build obj=debian/linux-headers-6.14.0-rc1/usr/src/linux-headers-6.14.0-rc1/scripts
  make[6]: *** No rule to make target 'gcc'.  Stop.

Upon investigation, it seems that one instance of $(CC) variable reference
in ./scripts/package/install-extmod-build was missing quotation marks,
causing the above error.

Add the missing quotation marks around $(CC) to fix build.

Fixes: 5f73e7d0386d ("kbuild: refactor cross-compiling linux-headers package")
Co-developed-by: Mingcong Bai <jeffbai@aosc.io>
Signed-off-by: Mingcong Bai <jeffbai@aosc.io>
Tested-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
7 months agoMerge tag 'pm-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Fri, 7 Feb 2025 18:34:50 +0000 (10:34 -0800)]
Merge tag 'pm-6.14-rc2' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix a handful of issues in the amd-pstate driver, the airoha
  cpufreq driver build, a (recently added) possible NULL pointer
  dereference in the cpufreq code and a possible memory leak in the
  power capping subsystem:

   - Fix cpufreq_policy reference counting and prevent max_perf from
     going above the current limit in amd-pstate, and drop a redundant
     goto label from it (Dhananjay Ugwekar)

   - Prevent the per-policy boost_enabled flag in amd-pstate from
     getting out of sync with the actual state after boot failures
     (Lifeng Zheng)

   - Fix a recently added possible NULL pointer dereference in the
     cpufreq core (Aboorva Devarajan)

   - Fix a build issue related to CONFIG_OF and COMPILE_TEST
     dependencies in the airoha cpufreq driver (Arnd Bergmann)

   - Fix a possible memory leak in the power capping subsystem (Joe
     Hattori)"

* tag 'pm-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq/amd-pstate: Fix cpufreq_policy ref counting
  cpufreq: prevent NULL dereference in cpufreq_online()
  cpufreq: airoha: modify CONFIG_OF dependency
  cpufreq/amd-pstate: Fix max_perf updation with schedutil
  cpufreq/amd-pstate: Remove the goto label in amd_pstate_update_limits
  cpufreq/amd-pstate: Fix per-policy boost flag incorrect when fail
  powercap: call put_device() on an error path in powercap_register_control_type()

7 months agoMerge tag 'acpi-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 7 Feb 2025 18:08:25 +0000 (10:08 -0800)]
Merge tag 'acpi-6.14-rc2' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix three assorted issues, including one recent regression:

   - Add an ACPI IRQ override quirk for Eluktronics MECH-17 to make the
     internal keyboard work (Gannon Kolding)

   - Make acpi_data_prop_read() reflect the OF counterpart behavior in
     error cases (Andy Shevchenko)

   - Remove recently added strict ACPI PRM handler address checks that
     prevented PRM from working on some platforms in the field (Aubrey
     Li)"

* tag 'acpi-6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PRM: Remove unnecessary strict handler address checks
  ACPI: resource: IRQ override for Eluktronics MECH-17
  ACPI: property: Fix return value for nval == 0 in acpi_data_prop_read()

7 months agodrm/panel: panel-himax-hx83102: support for csot-pna957qt1-1 MIPI-DSI panel
Langyan Ye [Thu, 6 Feb 2025 13:13:00 +0000 (21:13 +0800)]
drm/panel: panel-himax-hx83102: support for csot-pna957qt1-1 MIPI-DSI panel

The csot-pna957qt1-1 is a 10.95" TFT panel. The MIPI controller on this
panel is the same as the other panels here, so add this panel to this
driver.

Signed-off-by: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206131300.1295111-4-yelangyan@huaqin.corp-partner.google.com
7 months agodt-bindings: display: panel: Add compatible for CSOT PNA957QT1-1
Langyan Ye [Thu, 6 Feb 2025 13:12:59 +0000 (21:12 +0800)]
dt-bindings: display: panel: Add compatible for CSOT PNA957QT1-1

Add a new compatible for the panel CSOT PNA957QT1-1. This panel uses
HX83102 IC, so add the compatible to the hx83102 binding files.

Signed-off-by: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206131300.1295111-3-yelangyan@huaqin.corp-partner.google.com
7 months agodt-bindings: vendor-prefixes: add csot
Langyan Ye [Thu, 6 Feb 2025 13:12:58 +0000 (21:12 +0800)]
dt-bindings: vendor-prefixes: add csot

Add "csot" to the Devicetree Vendor Prefix Registry.

Signed-off-by: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206131300.1295111-2-yelangyan@huaqin.corp-partner.google.com
7 months agoMerge tag 'gpio-fixes-for-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 7 Feb 2025 17:50:33 +0000 (09:50 -0800)]
Merge tag 'gpio-fixes-for-v6.14-rc2' of git://git./linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix interrupt support in gpio-pca953x

 - fix configfs attribute locking in gpio-sim

 - limit the visibility of the GPIO_GRGPIO Kconfig symbol to OF systems
   only

 - update MAINTAINERS

* tag 'gpio-fixes-for-v6.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  MAINTAINERS: Use my kernel.org address for ACPI GPIO work
  gpio: GPIO_GRGPIO should depend on OF
  gpio: sim: lock hog configfs items if present
  gpio: pca953x: Improve interrupt support

7 months agodrm/panthor: Convert IOCTL defines to an enum
Rob Herring (Arm) [Tue, 4 Feb 2025 23:28:24 +0000 (17:28 -0600)]
drm/panthor: Convert IOCTL defines to an enum

Use an enum instead of #defines for panthor IOCTLs. This allows the
header to be used with Rust code as bindgen can't handle complex
defines.

Cc: Beata Michalska <beata.michalska@arm.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204232824.3819437-1-robh@kernel.org
7 months agoMerge tag 'vfs-6.14-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Linus Torvalds [Fri, 7 Feb 2025 17:22:31 +0000 (09:22 -0800)]
Merge tag 'vfs-6.14-rc2.fixes' of git://git./linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - Fix fsnotify FMODE_NONOTIFY* handling.

   This also disables fsnotify on all pseudo files by default apart from
   very select exceptions. This carries a regression risk so we need to
   watch out and adapt accordingly. However, it is overall a significant
   improvement over the current status quo where every rando file can
   get fsnotify enabled.

 - Cleanup and simplify lockref_init() after recent lockref changes.

 - Fix vboxfs build with gcc-15.

 - Add an assert into inode_set_cached_link() to catch corrupt links.

 - Allow users to also use an empty string check to detect whether a
   given mount option string was empty or not.

 - Fix how security options were appended to statmount()'s ->mnt_opt
   field.

 - Fix statmount() selftests to always check the returned mask.

 - Fix uninitialized value in vfs_statx_path().

 - Fix pidfs_ioctl() sanity checks to guard against ioctl() overloading
   and preserve extensibility.

* tag 'vfs-6.14-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  vfs: sanity check the length passed to inode_set_cached_link()
  pidfs: improve ioctl handling
  fsnotify: disable pre-content and permission events by default
  selftests: always check mask returned by statmount(2)
  fsnotify: disable notification by default for all pseudo files
  fs: fix adding security options to statmount.mnt_opt
  fsnotify: use accessor to set FMODE_NONOTIFY_*
  lockref: remove count argument of lockref_init
  gfs2: switch to lockref_init(..., 1)
  gfs2: use lockref_init for gl_lockref
  statmount: let unset strings be empty
  vboxsf: fix building with GCC 15
  fs/stat.c: avoid harmless garbage value problem in vfs_statx_path()

7 months agoMerge tag 'bcachefs-2025-02-06.2' of git://evilpiepirate.org/bcachefs
Linus Torvalds [Fri, 7 Feb 2025 17:16:07 +0000 (09:16 -0800)]
Merge tag 'bcachefs-2025-02-06.2' of git://evilpiepirate.org/bcachefs

Pull bcachefs fixes from Kent Overstreet:
 "Nothing major, things continue to be fairly quiet over here.

   - add a SubmittingPatches to clarify that patches submitted for
     bcachefs do, in fact, need to be tested

   - discard path now correctly issues journal flushes when needed, this
     fixes performance issues when the filesystem is nearly full and
     we're bottlenecked on copygc

   - fix a bug that could cause the pending rebalance work accounting to
     be off when devices are being onlined/offlined; users should report
     if they are still seeing this

   - and a few more trivial ones"

* tag 'bcachefs-2025-02-06.2' of git://evilpiepirate.org/bcachefs:
  bcachefs: bch2_bkey_sectors_need_rebalance() now only depends on bch_extent_rebalance
  bcachefs: Fix rcu imbalance in bch2_fs_btree_key_cache_exit()
  bcachefs: Fix discard path journal flushing
  bcachefs: fix deadlock in journal_entry_open()
  bcachefs: fix incorrect pointer check in __bch2_subvolume_delete()
  bcachefs docs: SubmittingPatches.rst

7 months agoMAINTAINERS: Remove myself
Hector Martin [Thu, 6 Feb 2025 18:21:46 +0000 (03:21 +0900)]
MAINTAINERS: Remove myself

I no longer have any faith left in the kernel development process or
community management approach.

Apple/ARM platform development will continue downstream. If I feel like
sending some patches upstream in the future myself for whatever subtree
I may, or I may not. Anyone who feels like fighting the upstreaming
fight themselves is welcome to do so.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 months agoMAINTAINERS: Move Pavel to kernel.org address
Pavel Machek [Wed, 5 Feb 2025 18:42:01 +0000 (19:42 +0100)]
MAINTAINERS: Move Pavel to kernel.org address

I need to filter my emails better, switch to pavel@kernel.org address
to help with that.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 months agodrm/panic: Better binary encoding in QR code
Jocelyn Falempe [Tue, 28 Jan 2025 16:52:10 +0000 (17:52 +0100)]
drm/panic: Better binary encoding in QR code

The current encoding, is done by converting 13bits of input into 4
decimal digits, that are then encoded efficiently using the numeric
encoding of the QR code specification.
The Fido v2.2 specification [1] uses a similar approach for its
QR-initiated authentication. The only difference is that it converts
7 bytes (56bits) of input into 17 decimal digits. The benefit is that
the algorithm doesn't require to split input bytes into 13bits chunk,
and the ratio is a bit better.
This improvement was proposed by Jó Ágila Bitsch in [2].
drm_panic is still young, and the QR code feature is not widely used,
so it's still time to switch to a common algorithm, shared with a
widely used standard.
I also changed the name of the url parameter, from zl= to z=, so the
website can keep backward compatibility if needed.

[1] https://fidoalliance.org/specs/fido-v2.2-rd-20230321/fido-client-to-authenticator-protocol-v2.2-rd-20230321.html#hybrid-qr-initiated
[2] https://github.com/kdj0c/panic_report/issues/2

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250128165254.893204-1-jfalempe@redhat.com
7 months agodrm/panthor: Fix race condition when gathering fdinfo group samples
Adrián Larumbe [Thu, 30 Jan 2025 17:28:13 +0000 (17:28 +0000)]
drm/panthor: Fix race condition when gathering fdinfo group samples

Commit e16635d88fa0 ("drm/panthor: add DRM fdinfo support") failed to
protect access to groups with an xarray lock, which could lead to
use-after-free errors.

Fixes: e16635d88fa0 ("drm/panthor: add DRM fdinfo support")
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-6-adrian.larumbe@collabora.com
Link: https://patchwork.freedesktop.org/patch/msgid/20250107173310.88329-1-florent.tomasin@arm.com
7 months agoDocumentation/gpu: Add fdinfo meanings of panthor-*-memory tags
Adrián Larumbe [Thu, 30 Jan 2025 17:28:12 +0000 (17:28 +0000)]
Documentation/gpu: Add fdinfo meanings of panthor-*-memory tags

A previous commit enabled display of driver-internal kernel BO sizes
through the device file's fdinfo interface.

Expand the description of the relevant driver-specific key:value pairs
with the definitions of the new panthor-*-memory ones.

Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-5-adrian.larumbe@collabora.com
7 months agodrm/panthor: Expose size of driver internal BO's over fdinfo
Adrián Larumbe [Thu, 30 Jan 2025 17:28:11 +0000 (17:28 +0000)]
drm/panthor: Expose size of driver internal BO's over fdinfo

This will display the sizes of kenrel BO's bound to an open file, which are
otherwise not exposed to UM through a handle.

The sizes recorded are as follows:
 - Per group: suspend buffer, protm-suspend buffer, syncobjcs
 - Per queue: ringbuffer, profiling slots, firmware interface
 - For all heaps in all heap pools across all VM's bound to an open file,
 record size of all heap chuks, and for each pool the gpu_context BO too.

This does not record the size of FW regions, as these aren't bound to a
specific open file and remain active through the whole life of the driver.

Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-4-adrian.larumbe@collabora.com
7 months agodrm/file: Add fdinfo helper for printing regions with prefix
Adrián Larumbe [Thu, 30 Jan 2025 17:28:10 +0000 (17:28 +0000)]
drm/file: Add fdinfo helper for printing regions with prefix

This is motivated by the desire of some drivers (eg. Panthor) to print the
size of internal memory regions with a prefix that reflects the driver
name, as suggested in the previous documentation commit.

That means adding a new argument to print_size and making it available for
DRM users.

Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-3-adrian.larumbe@collabora.com
7 months agoMerge tag 'md-6.14-20250206' of https://git.kernel.org/pub/scm/linux/kernel/git/mdrai... block-6.14-20250207
Jens Axboe [Fri, 7 Feb 2025 14:23:03 +0000 (07:23 -0700)]
Merge tag 'md-6.14-20250206' of https://git./linux/kernel/git/mdraid/linux into block-6.14

Pull MD fix from Song:

"This patch, by Bart Van Assche, fixes an error handling path for
 md-linear."

* tag 'md-6.14-20250206' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
  md: Fix linear_set_limits()

7 months agoDocumentation/gpu: Clarify format of driver-specific fidnfo keys
Adrián Larumbe [Thu, 30 Jan 2025 17:28:09 +0000 (17:28 +0000)]
Documentation/gpu: Clarify format of driver-specific fidnfo keys

This change reflects de facto usage by amdgpu, as exemplified by commit
d6530c33a978 ("drm/amdgpu: expose more memory stats in fdinfo").

Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250130172851.941597-2-adrian.larumbe@collabora.com
7 months agoMerge branches 'acpi-property' and 'acpi-resource'
Rafael J. Wysocki [Fri, 7 Feb 2025 12:06:31 +0000 (13:06 +0100)]
Merge branches 'acpi-property' and 'acpi-resource'

Merge a new ACPI IRQ override quirk for Eluktronics MECH-17 (Gannon
Kolding) and an acpi_data_prop_read() fix making it reflect the OF
counterpart behavior in error cases (Andy Shevchenko).

* acpi-property:
  ACPI: property: Fix return value for nval == 0 in acpi_data_prop_read()

* acpi-resource:
  ACPI: resource: IRQ override for Eluktronics MECH-17

7 months agoMerge branch 'pm-powercap'
Rafael J. Wysocki [Fri, 7 Feb 2025 11:43:58 +0000 (12:43 +0100)]
Merge branch 'pm-powercap'

Fix a possible memory leak in the power capping subsystem (Joe Hattori).

* pm-powercap:
  powercap: call put_device() on an error path in powercap_register_control_type()

7 months agodrm/scheduler: Remove some unused prototypes
Tvrtko Ursulin [Wed, 5 Feb 2025 11:04:10 +0000 (11:04 +0000)]
drm/scheduler: Remove some unused prototypes

As far as I can tell some removed prototypes were introduced by probably
bad conflict resolution in
fc58764bbf60 ("Merge tag 'amd-drm-next-6.2-2022-11-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-next").

Remove them.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Danilo Krummrich <dakr@redhat.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Philipp Stanner <pstanner@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250205110410.7941-1-tvrtko.ursulin@igalia.com
7 months agovfs: sanity check the length passed to inode_set_cached_link()
Mateusz Guzik [Tue, 4 Feb 2025 21:32:07 +0000 (22:32 +0100)]
vfs: sanity check the length passed to inode_set_cached_link()

This costs a strlen() call when instatianating a symlink.

Preferably it would be hidden behind VFS_WARN_ON (or compatible), but
there is no such facility at the moment. With the facility in place the
call can be patched out in production kernels.

In the meantime, since the cost is being paid unconditionally, use the
result to a fixup the bad caller.

This is not expected to persist in the long run (tm).

Sample splat:
bad length passed for symlink [/tmp/syz-imagegen43743633/file0/file0] (got 131109, expected 37)
[rest of WARN blurp goes here]

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://lore.kernel.org/r/20250204213207.337980-1-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agopidfs: improve ioctl handling
Christian Brauner [Tue, 4 Feb 2025 13:51:20 +0000 (14:51 +0100)]
pidfs: improve ioctl handling

Pidfs supports extensible and non-extensible ioctls. The extensible
ioctls need to check for the ioctl number itself not just the ioctl
command otherwise both backward- and forward compatibility are broken.

The pidfs ioctl handler also needs to look at the type of the ioctl
command to guard against cases where "[...] a daemon receives some
random file descriptor from a (potentially less privileged) client and
expects the FD to be of some specific type, it might call ioctl() on
this FD with some type-specific command and expect the call to fail if
the FD is of the wrong type; but due to the missing type check, the
kernel instead performs some action that userspace didn't expect."
(cf. [1]]

Link: https://lore.kernel.org/r/20250204-work-pidfs-ioctl-v1-1-04987d239575@kernel.org
Link: https://lore.kernel.org/r/CAG48ez2K9A5GwtgqO31u9ZL292we8ZwAA=TJwwEv7wRuJ3j4Lw@mail.gmail.com
Fixes: 8ce352818820 ("pidfs: check for valid ioctl commands")
Acked-by: Luca Boccassi <luca.boccassi@gmail.com>
Reported-by: Jann Horn <jannh@google.com>
Cc: stable@vger.kernel.org # v6.13; please backport with 8ce352818820 ("pidfs: check for valid ioctl commands")
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agoMerge patch series "Fix for huge faults regression"
Christian Brauner [Tue, 4 Feb 2025 10:25:45 +0000 (11:25 +0100)]
Merge patch series "Fix for huge faults regression"

Amir Goldstein <amir73il@gmail.com> says:

The two Fix patches have been tested by Alex together and each one
independently.

I also verified that they pass the LTP inoityf/fanotify tests.

* patches from https://lore.kernel.org/r/20250203223205.861346-1-amir73il@gmail.com:
  fsnotify: disable pre-content and permission events by default
  fsnotify: disable notification by default for all pseudo files
  fsnotify: use accessor to set FMODE_NONOTIFY_*

Link: https://lore.kernel.org/r/20250203223205.861346-1-amir73il@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agofsnotify: disable pre-content and permission events by default
Amir Goldstein [Mon, 3 Feb 2025 22:32:05 +0000 (23:32 +0100)]
fsnotify: disable pre-content and permission events by default

After introducing pre-content events, we had a regression related to
disabling huge faults on files that should never have pre-content events
enabled.

This happened because the default f_mode of allocated files (0) does
not disable pre-content events.

Pre-content events are disabled in file_set_fsnotify_mode_by_watchers()
but internal files may not get to call this helper.

Initialize f_mode to disable permission and pre-content events for all
files and if needed they will be enabled for the callers of
file_set_fsnotify_mode_by_watchers().

Fixes: 20bf82a898b6 ("mm: don't allow huge faults for files with pre content watches")
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Closes: https://lore.kernel.org/linux-fsdevel/20250131121703.1e4d00a7.alex.williamson@redhat.com/
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/r/20250203223205.861346-4-amir73il@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agoselftests: always check mask returned by statmount(2)
Miklos Szeredi [Wed, 29 Jan 2025 16:06:41 +0000 (17:06 +0100)]
selftests: always check mask returned by statmount(2)

STATMOUNT_MNT_OPTS can actually be missing if there are no options.  This
is a change of behavior since 75ead69a7173 ("fs: don't let statmount return
empty strings").

The other checks shouldn't actually trigger, but add them for correctness
and for easier debugging if the test fails.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Link: https://lore.kernel.org/r/20250129160641.35485-1-mszeredi@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agofsnotify: disable notification by default for all pseudo files
Amir Goldstein [Mon, 3 Feb 2025 22:32:04 +0000 (23:32 +0100)]
fsnotify: disable notification by default for all pseudo files

Most pseudo files are not applicable for fsnotify events at all,
let alone to the new pre-content events.

Disable notifications to all files allocated with alloc_file_pseudo()
and enable legacy inotify events for the specific cases of pipe and
socket, which have known users of inotify events.

Pre-content events are also kept disabled for sockets and pipes.

Fixes: 20bf82a898b6 ("mm: don't allow huge faults for files with pre content watches")
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Closes: https://lore.kernel.org/linux-fsdevel/20250131121703.1e4d00a7.alex.williamson@redhat.com/
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/linux-fsdevel/CAHk-=wi2pThSVY=zhO=ZKxViBj5QCRX-=AS2+rVknQgJnHXDFg@mail.gmail.com/
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/r/20250203223205.861346-3-amir73il@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agofs: fix adding security options to statmount.mnt_opt
Miklos Szeredi [Wed, 29 Jan 2025 15:12:53 +0000 (16:12 +0100)]
fs: fix adding security options to statmount.mnt_opt

Prepending security options was made conditional on sb->s_op->show_options,
but security options are independent of sb options.

Fixes: 056d33137bf9 ("fs: prepend statmount.mnt_opts string with security_sb_mnt_opts()")
Fixes: f9af549d1fd3 ("fs: export mount options via statmount()")
Cc: stable@vger.kernel.org # v6.11
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Link: https://lore.kernel.org/r/20250129151253.33241-1-mszeredi@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agofsnotify: use accessor to set FMODE_NONOTIFY_*
Amir Goldstein [Mon, 3 Feb 2025 22:32:03 +0000 (23:32 +0100)]
fsnotify: use accessor to set FMODE_NONOTIFY_*

The FMODE_NONOTIFY_* bits are a 2-bits mode.  Open coding manipulation
of those bits is risky.  Use an accessor file_set_fsnotify_mode() to
set the mode.

Rename file_set_fsnotify_mode() => file_set_fsnotify_mode_from_watchers()
to make way for the simple accessor name.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/r/20250203223205.861346-2-amir73il@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agoMerge patch series "further lockref cleanups"
Christian Brauner [Thu, 30 Jan 2025 15:04:42 +0000 (16:04 +0100)]
Merge patch series "further lockref cleanups"

Andreas Gruenbacher <agruenba@redhat.com> says:

Here's an updated version with an additional comment saying that
lockref_init() initializes count to 1.

* patches from https://lore.kernel.org/r/20250130135624.1899988-1-agruenba@redhat.com:
  lockref: remove count argument of lockref_init
  gfs2: switch to lockref_init(..., 1)
  gfs2: use lockref_init for gl_lockref

Link: https://lore.kernel.org/r/20250130135624.1899988-1-agruenba@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agolockref: remove count argument of lockref_init
Andreas Gruenbacher [Thu, 30 Jan 2025 13:56:23 +0000 (14:56 +0100)]
lockref: remove count argument of lockref_init

All users of lockref_init() now initialize the count to 1, so hardcode
that and remove the count argument.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Link: https://lore.kernel.org/r/20250130135624.1899988-4-agruenba@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agogfs2: switch to lockref_init(..., 1)
Andreas Gruenbacher [Thu, 30 Jan 2025 13:56:22 +0000 (14:56 +0100)]
gfs2: switch to lockref_init(..., 1)

In qd_alloc(), initialize the lockref count to 1 to cover the common
case.  Compensate for that in gfs2_quota_init() by adjusting the count
back down to 0; this only occurs when mounting the filesystem rw.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Link: https://lore.kernel.org/r/20250130135624.1899988-3-agruenba@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agogfs2: use lockref_init for gl_lockref
Andreas Gruenbacher [Thu, 30 Jan 2025 13:56:21 +0000 (14:56 +0100)]
gfs2: use lockref_init for gl_lockref

Move the initialization of gl_lockref from gfs2_init_glock_once() to
gfs2_glock_get().  This allows to use lockref_init() there.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Link: https://lore.kernel.org/r/20250130135624.1899988-2-agruenba@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agostatmount: let unset strings be empty
Miklos Szeredi [Thu, 30 Jan 2025 12:15:00 +0000 (13:15 +0100)]
statmount: let unset strings be empty

Just like it's normal for unset values to be zero, unset strings should be
empty instead of containing random values.

It seems to be a typical mistake that the mask returned by statmount is not
checked, which can result in various bugs.

With this fix, these bugs are prevented, since it is highly likely that
userspace would just want to turn the missing mask case into an empty
string anyway (most of the recently found cases are of this type).

Link: https://lore.kernel.org/all/CAJfpegsVCPfCn2DpM8iiYSS5DpMsLB8QBUCHecoj6s0Vxf4jzg@mail.gmail.com/
Fixes: 68385d77c05b ("statmount: simplify string option retrieval")
Fixes: 46eae99ef733 ("add statmount(2) syscall")
Cc: stable@vger.kernel.org # v6.8
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Link: https://lore.kernel.org/r/20250130121500.113446-1-mszeredi@redhat.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agovboxsf: fix building with GCC 15
Brahmajit Das [Tue, 21 Jan 2025 16:26:48 +0000 (21:56 +0530)]
vboxsf: fix building with GCC 15

Building with GCC 15 results in build error
fs/vboxsf/super.c:24:54: error: initializer-string for array of ‘unsigned char’ is too long [-Werror=unterminated-string-initialization]
   24 | static const unsigned char VBSF_MOUNT_SIGNATURE[4] = "\000\377\376\375";
      |                                                      ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Due to GCC having enabled -Werror=unterminated-string-initialization[0]
by default. Separately initializing each array element of
VBSF_MOUNT_SIGNATURE to ensure NUL termination, thus satisfying GCC 15
and fixing the build error.

[0]: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wno-unterminated-string-initialization

Signed-off-by: Brahmajit Das <brahmajit.xyz@gmail.com>
Link: https://lore.kernel.org/r/20250121162648.1408743-1-brahmajit.xyz@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agofs/stat.c: avoid harmless garbage value problem in vfs_statx_path()
Su Hui [Sun, 19 Jan 2025 02:59:47 +0000 (10:59 +0800)]
fs/stat.c: avoid harmless garbage value problem in vfs_statx_path()

Clang static checker(scan-build) warning:
fs/stat.c:287:21: warning: The left expression of the compound assignment is
an uninitialized value. The computed value will also be garbage.
  287 |                 stat->result_mask |= STATX_MNT_ID_UNIQUE;
      |                 ~~~~~~~~~~~~~~~~~ ^
fs/stat.c:290:21: warning: The left expression of the compound assignment is
an uninitialized value. The computed value will also be garbage.
  290 |                 stat->result_mask |= STATX_MNT_ID;

When vfs_getattr() failed because of security_inode_getattr(), 'stat' is
uninitialized. In this case, there is a harmless garbage problem in
vfs_statx_path(). It's better to return error directly when
vfs_getattr() failed, avoiding garbage value and more clearly.

Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20250119025946.1168957-1-suhui@nfschina.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
7 months agotimers/migration: Fix off-by-one root mis-connection
Frederic Weisbecker [Wed, 5 Feb 2025 16:02:20 +0000 (17:02 +0100)]
timers/migration: Fix off-by-one root mis-connection

Before attaching a new root to the old root, the children counter of the
new root is checked to verify that only the upcoming CPU's top group have
been connected to it. However since the recently added commit b729cc1ec21a
("timers/migration: Fix another race between hotplug and idle entry/exit")
this check is not valid anymore because the old root is pre-accounted
as a child to the new root. Therefore after connecting the upcoming
CPU's top group to the new root, the children count to be expected must
be 2 and not 1 anymore.

This omission results in the old root to not be connected to the new
root. Then eventually the system may run with more than one top level,
which defeats the purpose of a single idle migrator.

Also the old root is pre-accounted but not connected upon the new root
creation. But it can be connected to the new root later on. Therefore
the old root may be accounted twice to the new root. The propagation of
such overcommit can end up creating a double final top-level root with a
groupmask incorrectly initialized. Although harmless given that the final
top level roots will never have a parent to walk up to, this oddity
opportunistically reported the core issue:

  WARNING: CPU: 8 PID: 0 at kernel/time/timer_migration.c:543 tmigr_requires_handle_remote
  CPU: 8 UID: 0 PID: 0 Comm: swapper/8
  RIP: 0010:tmigr_requires_handle_remote
  Call Trace:
   <IRQ>
   ? tmigr_requires_handle_remote
   ? hrtimer_run_queues
   update_process_times
   tick_periodic
   tick_handle_periodic
   __sysvec_apic_timer_interrupt
   sysvec_apic_timer_interrupt
  </IRQ>

Fix the problem by taking the old root into account in the children count
of the new root so the connection is not omitted.

Also warn when more than one top level group exists to better detect
similar issues in the future.

Fixes: b729cc1ec21a ("timers/migration: Fix another race between hotplug and idle entry/exit")
Reported-by: Matt Fleming <mfleming@cloudflare.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250205160220.39467-1-frederic@kernel.org
7 months agogenirq: Remove leading space from irq_chip::irq_print_chip() callbacks
Geert Uytterhoeven [Wed, 5 Feb 2025 14:22:56 +0000 (15:22 +0100)]
genirq: Remove leading space from irq_chip::irq_print_chip() callbacks

The space separator was factored out from the multiple chip name prints,
but several irq_chip::irq_print_chip() callbacks still print a leading
space.  Remove the superfluous double spaces.

Fixes: 9d9f204bdf7243bf ("genirq/proc: Add missing space separator back")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/893f7e9646d8933cd6786d5a1ef3eb076d263768.1738764803.git.geert+renesas@glider.be
7 months agoMerge tag 'drm-intel-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/i915...
Dave Airlie [Fri, 7 Feb 2025 05:37:12 +0000 (15:37 +1000)]
Merge tag 'drm-intel-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes

- Fix the build error with clamp after WARN_ON on gcc 13.x+ (Guenter)
- HDCP related fixes (Suraj)
- PMU fix zero delta busyness issue (Umesh)
- Fix page cleanup on DMA remap failure (Brian)
- Drop 64bpp YUV formats from ICL+ SDR planes (Ville)
- GuC log related fix (Daniele)
- DisplayPort related fixes (Ankit, Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Z6TDHpgI6dnOc0KI@intel.com
7 months agoMerge tag 'drm-xe-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/xe/kernel...
Dave Airlie [Fri, 7 Feb 2025 05:27:23 +0000 (15:27 +1000)]
Merge tag 'drm-xe-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

UAPI Changes:
 - OA uAPI related fixes (Ashutosh)

Driver Changes:
 - Fix SRIOV migration initialization (Michal)
 - Restore devcoredump to a sane state (Lucas)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Z6S9rI1ScT_5Aw6_@intel.com
7 months agoMerge tag 'drm-misc-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/misc...
Dave Airlie [Fri, 7 Feb 2025 04:47:11 +0000 (14:47 +1000)]
Merge tag 'drm-misc-fixes-2025-02-06' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

A couple of fixes for ivpu to error handling, komeda for format
handling, AST DP timeout fix when enabling the output, locking fix for
zynqmp DP support, tiled format handling in drm/client, and refcounting
fix for bochs

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-encouraging-judicious-quoll-adc1dc@houat
7 months agoMerge tag 'amd-drm-fixes-6.14-2025-02-05' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Fri, 7 Feb 2025 03:53:59 +0000 (13:53 +1000)]
Merge tag 'amd-drm-fixes-6.14-2025-02-05' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.14-2025-02-05:

amdgpu:
- Add BO metadata flag for DCC
- Fix potential out of bounds access in display
- Seamless boot fix
- CONFIG_FRAME_WARN fix
- PSR1 fix

UAPI:
- Add new tiling flag for DCC write compress disable
  Proposed userspace: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33255

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250205214910.3664690-1-alexander.deucher@amd.com
7 months agobcachefs: bch2_bkey_sectors_need_rebalance() now only depends on bch_extent_rebalance
Kent Overstreet [Sun, 26 Jan 2025 02:29:45 +0000 (21:29 -0500)]
bcachefs: bch2_bkey_sectors_need_rebalance() now only depends on bch_extent_rebalance

Previously, bch2_bkey_sectors_need_rebalance() called
bch2_target_accepts_data(), checking whether the target is writable.

However, this means that adding or removing devices from a target would
change the value of bch2_bkey_sectors_need_rebalance() for an existing
extent; this needs to be invariant so that the extent trigger can
correctly maintain rebalance_work accounting.

Instead, check target_accepts_data() in io_opts_to_rebalance_opts(),
before creating the bch_extent_rebalance entry.

This fixes (one?) cause of rebalance_work accounting being off.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
7 months agobcachefs: Fix rcu imbalance in bch2_fs_btree_key_cache_exit()
Kent Overstreet [Mon, 3 Feb 2025 16:35:11 +0000 (11:35 -0500)]
bcachefs: Fix rcu imbalance in bch2_fs_btree_key_cache_exit()

Spotted by sparse.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
7 months agobcachefs: Fix discard path journal flushing
Kent Overstreet [Mon, 27 Jan 2025 06:21:44 +0000 (01:21 -0500)]
bcachefs: Fix discard path journal flushing

The discard path is supposed to issue journal flushes when there's too
many buckets empty buckets that need a journal commit before they can be
written to again, but at some point this code seems to have been lost.

Bring it back with a new optimization to make sure we don't issue too
many journal flushes: the journal now tracks the sequence number of the
most recent flush in progress, which the discard path uses when deciding
which buckets need a journal flush.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
7 months agobcachefs: fix deadlock in journal_entry_open()
Jeongjun Park [Sun, 2 Feb 2025 06:13:51 +0000 (15:13 +0900)]
bcachefs: fix deadlock in journal_entry_open()

In the previous commit b3d82c2f2761, code was added to prevent journal sequence
overflow. Among them, the code added to journal_entry_open() uses the
bch2_fs_fatal_err_on() function to handle errors.

However, __journal_res_get() , which calls journal_entry_open() , calls
journal_entry_open() while holding journal->lock , but bch2_fs_fatal_err_on()
internally tries to acquire journal->lock , which results in a deadlock.

So we need to add a locked helper to handle fatal errors even when the
journal->lock is held.

Fixes: b3d82c2f2761 ("bcachefs: Guard against journal seq overflow")
Signed-off-by: Jeongjun Park <aha310510@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>