linux/drivers/gpu
Jocelyn Falempe 91296c47dd drm/panic: Fix 24bit pixel crossing page boundaries
[ Upstream commit 23437509a6 ]

When using page list framebuffer, and using RGB888 format, some
pixels can cross the page boundaries, and this case was not handled,
leading to writing 1 or 2 bytes on the next virtual address.

Add a check and a specific function to handle this case.

Fixes: c9ff280879 ("drm/panic: Add support to scanout buffer as array of pages")
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20251009122955.562888-7-jfalempe@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-10-29 14:10:28 +01:00
..
drm drm/panic: Fix 24bit pixel crossing page boundaries 2025-10-29 14:10:28 +01:00
host1x gpu: host1x: Use for_each_available_child_of_node_scoped() 2025-05-07 18:09:30 +02:00
ipu-v3 gpu: ipu-v3: Switch to irq_find_mapping() 2025-05-16 21:06:12 +02:00
nova-core gpu: nova-core: depend on CONFIG_64BIT 2025-09-01 11:06:37 +02:00
trace gpu/trace: make TRACE_GPU_MEM configurable 2025-07-08 09:34:47 -07:00
vga vga_switcheroo: Use pci_is_display() 2025-07-17 15:30:13 -05:00
Makefile gpu: nova-core: add initial driver stub 2025-03-09 19:24:27 +01:00