drm/i915: Add intel_bo_panic_setup() and intel_bo_panic_finish()

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Implement both functions for i915 and xe, they prepare the work for
drm_panic support.
They both use kmap_try_from_panic(), and map one page at a time, to
write the panic screen on the framebuffer.

Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250624091501.257661-8-jfalempe@redhat.com
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>

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Jocelyn Falempe 2025-06-24 11:01:16 +02:00 • committed by Maarten Lankhorst

parent da091afacb

commit 75fb60e5ad

5 changed files with 188 additions and 0 deletions

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11

drivers/gpu/drm/i915/display/intel_bo.c

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3

drivers/gpu/drm/i915/display/intel_bo.h

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4

drivers/gpu/drm/i915/gem/i915_gem_object.h

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106

drivers/gpu/drm/i915/gem/i915_gem_pages.c

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64

drivers/gpu/drm/xe/display/intel_bo.c

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