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tests/gem_cs_prefetch: clarify what it tests

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I've forgotten ;-)
This commit is contained in:
Daniel Vetter 2012-10-09 15:51:13 +02:00
parent dc5d76e2bf
commit a7787baccc
2 changed files with 4 additions and 0 deletions
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1
tests/Makefile.am
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@ -18,6 +18,7 @@ TESTS_progs = \
gem_basic \ gem_basic \
gem_cacheing \ gem_cacheing \
gem_cpu_concurrent_blit \ gem_cpu_concurrent_blit \
gem_cs_tlb \
gem_gtt_concurrent_blit \ gem_gtt_concurrent_blit \
gem_exec_nop \ gem_exec_nop \
gem_exec_blt \ gem_exec_blt \

3
tests/gem_cs_prefetch.c
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@ -31,6 +31,9 @@
* Historically the batch prefetcher doesn't check whether it's crossing page * Historically the batch prefetcher doesn't check whether it's crossing page
* boundaries and likes to throw up when it gets a pagefault in return for his * boundaries and likes to throw up when it gets a pagefault in return for his
* over-eager behaviour. Check for this. * over-eager behaviour. Check for this.
*
* This test for a bug where we've failed to plug a scratch pte entry into the
* very last gtt pte.
*/ */
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>