linux-stable.git/drivers/gpu/drm/xe/xe_debugfs.c, branch linux-6.11.y

drm/xe: Make wedged_mode debugfs writable

2024-10-17T13:26:49+00:00

[ Upstream commit 1badf482816417dca71f8120b4c540cdc82aa03c ]

The intent of this debugfs entry is to allow modification of wedging
behavior, either from IGT tests or during manual debug; it should be
marked as writable to properly reflect this.  In practice this hasn't
caused a problem because we always access wedged_mode as root, which
ignores file permissions, but it's still misleading to have the entry
incorrectly marked as RO.

Cc: Rodrigo Vivi 
Fixes: 6b8ef44cc0a9 ("drm/xe: Introduce the wedged_mode debugfs")
Signed-off-by: Matt Roper 
Reviewed-by: Gustavo Sousa 
Link: https://patchwork.freedesktop.org/patch/msgid/20241002230620.1249258-2-matthew.d.roper@intel.com
(cherry picked from commit 93d93813422758f6c99289de446b19184019ef5a)
Signed-off-by: Lucas De Marchi 
Signed-off-by: Sasha Levin

drm/xe: Don't rely on xe_force_wake.h to be included elsewhere

2024-05-07T21:21:17+00:00

While xe_force_wake.h is now included from the xe_device.h, we
want to drop that include as we don't need it there. Explicitly
include xe_force_wake.h where needed.

Signed-off-by: Michal Wajdeczko 
Reviewed-by: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20240507110959.2747-3-michal.wajdeczko@intel.com

drm/xe/debugfs: Get a runtime_pm reference when setting wedged mode

2024-05-03T12:54:32+00:00

This function is another entry point where it must be ensured that
the device resumes before operating on the GuC, so grab a runtime_pm
reference. This fixes inner xe_pm_runtime_get_noresume calls which
were previously failing.

Cc: Rodrigo Vivi 
Signed-off-by: Francois Dugast 
Reviewed-by: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20240503082450.268335-1-francois.dugast@intel.com
Signed-off-by: Rodrigo Vivi

Merge drm/drm-next into drm-xe-next

2024-05-02T07:46:12+00:00

Avoid falling too far behind drm-next.

Signed-off-by: Thomas Hellström

Merge tag 'drm-misc-next-2024-04-25' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2024-04-26T03:29:04+00:00

drm-misc-next for v6.10-rc1:

UAPI Changes:

Cross-subsystem Changes:
- Devicetree updates for rockchip (#sound-dai-cells)
- Add dt bindings for new panels.
- Change bridge/tc358775 dt bindings.

Core Changes:
- Fix SIZE_HINTS cursor property doc.
- Parse topology blocks for all DispID < 2.0.
- Implement support for tracking cleared free memory, use it in amdgpu.
- Drop seq_file.h from drm_print.h, and include debugfs.h explicitly
  where needed (drivers).

Driver Changes:
- Small fixes to rockchip, panthor, v3d, bridge chaining, xlx.
- Add Khadas TS050 V2, EDO RM69380 OLED, CSOT MNB601LS1-1 panels,
- Add SAM9X7 SoC's LVDS controller.
- More driver conversions to struct drm_edid.
- Support tc358765 in tc358775 bridge.

Signed-off-by: Dave Airlie 
From: Maarten Lankhorst 
Link: https://patchwork.freedesktop.org/patch/msgid/1ab99848-8fb8-41a6-8967-c4ce6f3634fd@linux.intel.com

drm/print: drop include debugfs.h and include where needed

2024-04-25T14:05:48+00:00

Surprisingly many places depend on debugfs.h to be included via
drm_print.h. Fix them.

v3: Also fix armada, ite-it6505, imagination, msm, sti, vc4, and xe

v2: Also fix ivpu and vmwgfx

Reviewed-by: Andrzej Hajda 
Acked-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20240410141434.157908-1-jani.nikula@intel.com
Acked-by: Dmitry Baryshkov  # drm/msm
Acked-by: Matt Coster  # drm/imagination
Acked-by: Alex Deucher 
Acked-by: Lucas De Marchi 
Acked-by: Robert Foss  #drm/bridge
Reviewed-by: Lyude Paul 
Link: https://patchwork.freedesktop.org/patch/msgid/20240422121011.4133236-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula

drm/xe: Introduce the wedged_mode debugfs

2024-04-24T16:12:58+00:00

So, the wedged mode can be selected per device at runtime,
before the tests or before reproducing the issue.

v2: - s/busted/wedged
    - some locking consistency

v3: - remove mutex
    - toggle guc reset policy on any mode change

Cc: Lucas De Marchi 
Cc: Alan Previn 
Cc: Himal Prasad Ghimiray 
Reviewed-by: Himal Prasad Ghimiray 
Link: https://patchwork.freedesktop.org/patch/msgid/20240423221817.1285081-4-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi

drm/xe: Add SR-IOV info attribute to debugfs

2024-04-10T09:26:21+00:00

As SR-IOV support varies between platforms and the driver can run
in different SR-IOV modes, add debugfs file with these details.

Signed-off-by: Michal Wajdeczko 
Reviewed-by: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20240404154431.583-4-michal.wajdeczko@intel.com

drm/xe: prefer snprintf over sprintf

2024-04-04T18:54:51+00:00

since the sprintf() function lacks built-in protection against buffer
overflows using the snprintf() function.

v2: Removed hard coded values and used sizeof()

Signed-off-by: Bommu Krishnaiah 
Cc: Himal Prasad Ghimiray 
Cc: Tejas Upadhyay 
Reviewed-by: Himal Prasad Ghimiray 
Link: https://patchwork.freedesktop.org/patch/msgid/20231209235949.54524-2-krishnaiah.bommu@intel.com
Signed-off-by: Rodrigo Vivi

drm/xe: Runtime PM wake on every debugfs call

2024-02-26T14:06:45+00:00

Let's ensure our PCI device is awaken on every debugfs call.
Let's increase the runtime_pm protection and start moving
that to the outer bounds.

Also let's remove the mem_access_{get,put} from where they are
not needed anymore.

Reviewed-by: Matthew Auld 
Signed-off-by: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20240222163937.138342-7-rodrigo.vivi@intel.com