Gyeyoung Baek 789f290b2e drm/imagination: Size page table preallocation by device address ... Commit 0a8224058a ("drm/imagination: Fix page count for page table for map() interface") passed the device address to pvr_mmu_op_context_create(), but the preallocation is still sized from device_addr + sgt_offset with an exclusive end. The offset into the object's pages has no place in a device-virtual range, and the exclusive end allocates one table too many when the range ends on a table boundary. Count the tables from device_addr and the inclusive end of the range. The new calculation does not take page table indices into account. This fixes another issue with the previous implementation, where the difference between start and end indices could underflow when a mapping crossed a page table boundary. This would lead to the driver preallocating a huge number of MMU pages, exhausting system memory and triggering an out of memory panic. Fixes: 0a8224058a ("drm/imagination: Fix page count for page table for map() interface") Fixes: ff5f643de0 ("drm/imagination: Add GEM and VM related code") Signed-off-by: Gyeyoung Baek <gye976@gmail.com> Reviewed-by: Brajesh Gupta <brajesh.gupta@imgtec.com> Reviewed-by: Alessio Belle <alessio.belle@imgtec.com> Cc: stable@vger.kernel.org [Alessio: add paragraph to point out OOM bug being fixed, cc stable] Link: https://patch.msgid.link/20261001-pvr-fixes-a-v2-2-f58254e5dfb8@gmail.com Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>		2026-10-08 10:32:31 +01:00
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drm	drm/imagination: Size page table preallocation by device address	2026-10-08 10:32:31 +01:00
host1x	Linux 7.2	2026-08-20 10:58:44 +10:00
ipu-v3
nova-core	drm for 7.3-rc1	2026-08-21 08:41:00 -07:00
tests	drm/tests/gpu_buddy: fix interleaving in buffer clearance test	2026-08-06 18:07:10 +05:30
trace
vga
buddy.c	treewide: refresh kmalloc_obj() conversions	2026-09-04 21:37:00 -07:00
Kconfig	gpu: Fix dependencies in CONFIG_GPU_BUDDY_KUNIT_TEST	2026-07-29 13:06:24 +02:00
Makefile