From c3538ab5702ceeead284c2b5f9e700f3082c8135 Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Wed, 8 May 2019 08:59:30 +0200 Subject: [PATCH] panfrost: Only take the fast paths on buffers aligned to block size 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) Signed-off-by: Tomeu Vizoso Reviewed-by: Emil Velikov Cc: 19.1 --- src/gallium/drivers/panfrost/pan_swizzle.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/gallium/drivers/panfrost/pan_swizzle.c b/src/gallium/drivers/panfrost/pan_swizzle.c index 52a907d..60f6953 100644 --- a/src/gallium/drivers/panfrost/pan_swizzle.c +++ b/src/gallium/drivers/panfrost/pan_swizzle.c @@ -164,10 +164,10 @@ panfrost_texture_swizzle(unsigned off_x, /* Use fast path if available */ if (!(off_x || off_y) && (width == dest_width)) { - if (bytes_per_pixel == 4 /* && (ALIGN(width, 16) == width) */) { + if (bytes_per_pixel == 4 && (ALIGN(width, 16) == width)) { swizzle_bpp4_align16(width, height, source_stride >> 2, (block_pitch * 256 >> 4), (const uint32_t *) pixels, (uint32_t *) ldest); return; - } else if (bytes_per_pixel == 1 /* && (ALIGN(width, 16) == width) */) { + } else if (bytes_per_pixel == 1 && (ALIGN(width, 16) == width)) { swizzle_bpp1_align16(width, height, source_stride, (block_pitch * 256 >> 4), pixels, (uint8_t *) ldest); return; } -- 2.7.4