panfrost: Only take the fast paths on buffers aligned to block size

Graphics / Mesa 3D Graphics Library / Mesa - Tomeu Vizoso [collabora.com] - 10 May 2019 05:39 EDT

As the functions operate on 16-byte blocks.

Fixes this Valgrind error:

Invalid read of size 4 at 0x5857568: swizzle_bpp1_align16 (pan_swizzle.c:85) by 0x585780F: panfrost_texture_swizzle (pan_swizzle.c:171) by 0x584F587: panfrost_tile_texture (pan_resource.c:489) by 0x584F641: panfrost_transfer_unmap (pan_resource.c:525) by 0x587718D: u_transfer_helper_transfer_unmap (u_transfer_helper.c:516) by 0x5875D85: pipe_transfer_unmap (u_inlines.h:515) by 0x5875F13: u_default_texture_subdata (u_transfer.c:80) by 0x53FFDC3: st_TexSubImage (st_cb_texture.c:1480) by 0x54005BB: st_TexImage (st_cb_texture.c:1709) by 0x5391353: teximage (teximage.c:3105) by 0x5391353: teximage_err (teximage.c:3132) by 0x5391B9B: _mesa_TexImage2D (teximage.c:3170) by 0x5097A77: shared_dispatch_stub_183 (glapi_mapi_tmp.h:18833) Address 0x1e94f1e8 is 0 bytes after a block of size 16 alloc'd at 0x483F5C8: malloc (vg_replace_malloc.c:299) by 0x584F47D: panfrost_transfer_map (pan_resource.c:467) by 0x587694D: u_transfer_helper_transfer_map (u_transfer_helper.c:243) by 0x5875EA7: u_default_texture_subdata (u_transfer.c:59) by 0x53FFDC3: st_TexSubImage (st_cb_texture.c:1480) by 0x54005BB: st_TexImage (st_cb_texture.c:1709) by 0x5391353: teximage (teximage.c:3105) by 0x5391353: teximage_err (teximage.c:3132) by 0x5391B9B: _mesa_TexImage2D (teximage.c:3170) by 0x5097A77: shared_dispatch_stub_183 (glapi_mapi_tmp.h:18833) by 0x4DA8AB: glu::CallLogWrapper::glTexImage2D(unsigned int, int, int, int, int, int, unsigned int, unsigned int, void const*) (in /home/tomeu/deqp-build/modules/gles2/deqp-gles2)

c3538ab5702 panfrost: Only take the fast paths on buffers aligned to block size
src/gallium/drivers/panfrost/pan_swizzle.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Upstream: cgit.freedesktop.org


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