Rob Clark
a61952e737
In the 'inorder' case (ie. FD_MESA_DEBUG=inorder, or old kernel), if the u_blitter clear path is used (a3xx, a4xx, and some fallback cases on newer gens), util_blitter_restore_fb_state() will set_framebuffer_state() to something that is identical to the current fb state, which triggers an unnecessary flush, and then eventually an assert: (gdb) bt #0 0x0000007fbf24a078 in kill () from /lib64/libc.so.6 #1 0x0000007fbe061278 in _debug_assert_fail (expr=0x7fbe93a820 "!batch->flushed", file=0x7fbe93a628 "../src/gallium/drivers/freedreno/freedreno_batch.c", line=491, function=0x7fbe93a990 <__func__.17380> "fd_batch_check_size") at ../src/gallium/auxiliary/util/u_debug.c:322 #2 0x0000007fbe1ccb8c in fd_batch_check_size (batch=0x55556d5a70) at ../src/gallium/drivers/freedreno/freedreno_batch.c:491 #3 0x0000007fbe1d0e08 in fd_clear (pctx=0x55555c61e0, buffers=5, color=0x55556e388c, depth=1, stencil=0) at ../src/gallium/drivers/freedreno/freedreno_draw.c:463 #4 0x0000007fbe57afa4 in st_Clear (ctx=0x55556e17b0, mask=18) at ../src/mesa/state_tracker/st_cb_clear.c:452 The assert was introduced in4b847b38ae, so from a functionality standpoint this patch fixes that commit. But it should also avoid an unnecessary flush in the 'inorder' case, fixing a performance bug. Fixes:4b847b38aefreedreno: make fd_batch a one-shot thing Signed-off-by: Rob Clark <robdclark@gmail.com>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================
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------
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