linux.git/drivers/gpu/drm/xe/display/intel_fbdev_fb.c, branch v6.16

Merge tag 'drm-intel-next-2025-05-08' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next

2025-05-09T20:12:18+00:00

Non-display related:
- Fix undefined reference to `intel_pxp_gsccs_is_ready_for_sessions'

Display related:
- More work towards display separation (Jani)
- Stop writing VRR_CTL_IGN_MAX_SHIFT for MTL onwards (Jouni)
- DSC checks for 3 engines (Ankit)
- Add link rate and lane count to i915_display_info (Khaled)
- PSR fixes and workaround for underrun on idle (Jouni)
- LOBF enablement and ALMP fixes (Animesh)
- Clean up VGA plane handling (Ville)
- Use an intel_connector pointer everywhere (Imre)
- Fix warning for coffeelake on SunrisePoint PCH (Jiajia)
- Rework/Correction on minimum hblank calculation (Arun)
- Dmesg clean up (Jani)
- Add a couple of simple display workarounds (Ankit, Vinod)
- Refactor HDCP GSC (Jani)

Signed-off-by: Dave Airlie 

From: Rodrigo Vivi 
Link: https://lore.kernel.org/r/aByyL3bEufPu79OM@intel.com

drm/i915/fb: convert intel_fbdev.[ch] and intel_fbdev_fb.[ch] to struct intel_display

2025-04-17T08:31:12+00:00

Going forward, struct intel_display is the main display device data
pointer. Convert intel_fbdev.[ch] and as much as possible of
intel_fbdev_fb.[ch] to struct intel_display.

Reviewed-by: Chaitanya Kumar Borah 
Link: https://lore.kernel.org/r/49651754f3716041f97984e47c15d331851870a5.1744222449.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula

drm/xe: unconditionally apply PINNED for pin_map()

2025-04-04T10:41:08+00:00

Some users apply PINNED and some don't when using pin_map(). The pin in
pin_map() should imply PINNED so just unconditionally apply it and clean
up all users.

Signed-off-by: Matthew Auld 
Cc: Satyanarayana K V P 
Cc: Thomas Hellström 
Cc: Matthew Brost 
Reviewed-by: Satyanarayana K V P 
Link: https://lore.kernel.org/r/20250403102440.266113-14-matthew.auld@intel.com

drm/xe/display: Fix fbdev GGTT mapping handling.

2025-03-05T20:48:49+00:00

FBDEV ggtt is not restored correctly, add missing GGTT flag to
intel_fbdev_fb_alloc to make it work. This ensures that the global
GGTT mapping is always restored on resume. The GGTT mapping would
otherwise be created in intel_fb_pin_to_ggtt() by intel_fbdev anyway.

This fixes the fbdev device not working after resume.

Fixes: 67a98f7e27ba ("drm/xe/display: Re-use display vmas when possible")
Cc: Lucas De Marchi 
Reviewed-by: Lucas De Marchi 
Link: https://patchwork.freedesktop.org/patch/msgid/20250305110106.564366-1-dev@lankhorst.se
Signed-off-by: Maarten Lankhorst

drm/xe: remove a number of superfluous compat macros

2024-09-19T13:37:16+00:00

Some compat macros have inadvertently been sprinkled in xe core
headers. Remove the final users and the macros.

Reviewed-by: Maarten Lankhorst 
Acked-by: Rodrigo Vivi 
Acked-by: Lucas De Marchi 
Signed-off-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/418185993c5825a54ac3f87a85463c799c91e47d.1726589119.git.jani.nikula@intel.com

drm/i915/fb: convert intel_framebuffer_create() to struct drm_gem_object

2024-09-19T13:37:06+00:00

Prefer the driver agnostic struct drm_gem_object over i915 specific
struct drm_i915_gem_object.

Move the declaration to the right place while at it.

Reviewed-by: Maarten Lankhorst 
Acked-by: Rodrigo Vivi 
Signed-off-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/5120aa0f5e49e95526b3ac20c1325bac1d95aa21.1726589119.git.jani.nikula@intel.com

drm/xe/display: use correct bo type in intel_fbdev_fb_alloc()

2024-09-19T13:36:57+00:00

It's really struct xe_bo, and struct drm_i915_gem_object only works
because of -Ddrm_i915_gem_object=xe_bo in xe Makefile.

Reviewed-by: Maarten Lankhorst 
Acked-by: Rodrigo Vivi 
Acked-by: Lucas De Marchi 
Signed-off-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/344a5a4c88a3ce17dd276b0155bcdbf93e5fb475.1726589119.git.jani.nikula@intel.com

drm/i915/fbdev: convert intel_fbdev.c to struct drm_gem_object

2024-09-19T13:19:39+00:00

Prefer the driver agnostic struct drm_gem_object over i915 specific
struct drm_i915_gem_object. Add new intel_bo_* functions as needed.

Reviewed-by: Maarten Lankhorst 
Acked-by: Rodrigo Vivi 
Signed-off-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/246b802bdbcd01a970ff8255d11db337f7b47b39.1726589119.git.jani.nikula@intel.com

drm/xe/display: Drop unnecessary xe_gt.h includes

2024-08-30T15:55:55+00:00

None of the Xe display files work directly with the GT or need anything
from xe_gt.h.  Drop the unnecessary include.

Signed-off-by: Matt Roper 
Reviewed-by: Himal Prasad Ghimiray 
Link: https://patchwork.freedesktop.org/patch/msgid/20240829230307.886233-2-matthew.d.roper@intel.com

drm/xe/fbdev: Limit the usage of stolen for LNL+

2024-07-18T05:13:27+00:00

As per recommendation in the workarounds:
WA_22019338487

There is an issue with accessing Stolen memory pages due a
hardware limitation. Limit the usage of stolen memory for
fbdev for LNL+. Don't use BIOS FB from stolen on LNL+ and
assign the same from system memory.

v2: Corrected the WA Number, limited WA to LNL and
    Adopted XE_WA framework as suggested by Lucas and Matt.

v3: Introduced the waxxx_display to implement display side
    of WA changes on Lunarlake. Used xe_root_mmio_gt and
    avoid the for loop (Suggested by Lucas)

v4: Fixed some nits (Luca)

Reviewed-by: Lucas De Marchi 
Signed-off-by: Uma Shankar 
Link: https://patchwork.freedesktop.org/patch/msgid/20240717082252.3875909-1-uma.shankar@intel.com