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authorAlyssa Rosenzweig <[email protected]>2019-07-17 15:43:24 -0700
committerAlyssa Rosenzweig <[email protected]>2019-07-18 10:42:43 -0700
commit479185a1cdc305be7947f1b364ee1da40d36b66f (patch)
tree24f5edc94336b62754041305b4fbeec594be1d77
parent65d89097b8bbf23d305c7d488e6a4a140ce03a91 (diff)
panfrost/decode: Don't disassemble NULL shaders
It is legal to load a shader from a NULL address, particularly when the TILER job is used strictly for effects on the Z/S buffer with 0x0 color mask. Don't crash the decoder in this case. Signed-off-by: Alyssa Rosenzweig <[email protected]>
-rw-r--r--src/panfrost/pandecode/decode.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/panfrost/pandecode/decode.c b/src/panfrost/pandecode/decode.c
index 4eaf09fd342..4132dc530ee 100644
--- a/src/panfrost/pandecode/decode.c
+++ b/src/panfrost/pandecode/decode.c
@@ -1603,12 +1603,13 @@ pandecode_vertex_tiler_postfix_pre(const struct mali_vertex_tiler_postfix *p,
else
shader = pandecode_midgard_blend_mrt(blend_base, job_no, i);
- if (shader)
+ if (shader & ~0xF)
pandecode_shader_disassemble(shader, job_no, job_type, false);
}
}
- pandecode_shader_disassemble(shader_ptr, job_no, job_type, is_bifrost);
+ if (shader_ptr & ~0xF)
+ pandecode_shader_disassemble(shader_ptr, job_no, job_type, is_bifrost);
} else
pandecode_msg("<no shader>\n");