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| author | Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> | 2021-08-24 13:30:26 -0400 |
|---|---|---|
| committer | Steven Price <steven.price@arm.com> | 2021-08-25 15:40:08 +0100 |
| commit | a77b58825d7221d4a45c47881c35a47ba003aa73 (patch) | |
| tree | 27350d8765bdb5f5901b1a17df7717ee5000ace8 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | b5fab345654c603c07525100d744498f28786929 (diff) | |
drm/panfrost: Use u64 for size in lock_region
Mali virtual addresses are 48-bit. Use a u64 instead of size_t to ensure
we can express the "lock everything" condition as ~0ULL without
overflow. This code was silently broken on any platform where a size_t
is less than 48-bits; in particular, it was broken on 32-bit armv7
platforms which remain in use with panfrost. (Mainly RK3288)
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Suggested-by: Rob Herring <robh@kernel.org>
Tested-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Fixes: f3ba91228e8e ("drm/panfrost: Add initial panfrost driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210824173028.7528-3-alyssa.rosenzweig@collabora.com
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions