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author | Samuel Ortiz <sameo@openedhand.com> | 2008-10-09 17:00:45 +0000 |
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committer | Samuel Ortiz <sameo@openedhand.com> | 2008-10-09 17:00:45 +0000 |
commit | d89d52d3ec86cf95dd93bb78c9b0ab537200e180 (patch) | |
tree | ac2667cd2ffa466be3f333c032045b9e3a8805d2 /meta/packages/linux/linux-moblin-2.6.27-rc6/0013-Export-kmap_atomic_pfn-for-DRM-GEM.patch | |
parent | 3d40acdf3e5e6d7da75862fa309b58f0d555141a (diff) | |
download | openembedded-core-d89d52d3ec86cf95dd93bb78c9b0ab537200e180.tar.gz openembedded-core-d89d52d3ec86cf95dd93bb78c9b0ab537200e180.tar.bz2 openembedded-core-d89d52d3ec86cf95dd93bb78c9b0ab537200e180.tar.xz openembedded-core-d89d52d3ec86cf95dd93bb78c9b0ab537200e180.zip |
linux-moblin: 2.6.27-rc6 kernel
That includes the fastboot patches. An eee boots in 10s with that
kernel.
git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5470 311d38ba-8fff-0310-9ca6-ca027cbcb966
Diffstat (limited to 'meta/packages/linux/linux-moblin-2.6.27-rc6/0013-Export-kmap_atomic_pfn-for-DRM-GEM.patch')
-rw-r--r-- | meta/packages/linux/linux-moblin-2.6.27-rc6/0013-Export-kmap_atomic_pfn-for-DRM-GEM.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/meta/packages/linux/linux-moblin-2.6.27-rc6/0013-Export-kmap_atomic_pfn-for-DRM-GEM.patch b/meta/packages/linux/linux-moblin-2.6.27-rc6/0013-Export-kmap_atomic_pfn-for-DRM-GEM.patch new file mode 100644 index 000000000..cc90d4626 --- /dev/null +++ b/meta/packages/linux/linux-moblin-2.6.27-rc6/0013-Export-kmap_atomic_pfn-for-DRM-GEM.patch @@ -0,0 +1,24 @@ +commit 25eaa97fc74b225e13cf11ed8d770192ddc9355d +Author: Eric Anholt <eric@anholt.net> +Date: Thu Aug 21 12:53:33 2008 -0700 + + Export kmap_atomic_pfn for DRM-GEM. + + The driver would like to map IO space directly for copying data in when + appropriate, to avoid CPU cache flushing for streaming writes. + kmap_atomic_pfn lets us avoid IPIs associated with ioremap for this process. + + Signed-off-by: Eric Anholt <eric@anholt.net> + +diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c +index 165c871..d52e91d 100644 +--- a/arch/x86/mm/highmem_32.c ++++ b/arch/x86/mm/highmem_32.c +@@ -137,6 +137,7 @@ void *kmap_atomic_pfn(unsigned long pfn, enum km_type type) + + return (void*) vaddr; + } ++EXPORT_SYMBOL(kmap_atomic_pfn); + + struct page *kmap_atomic_to_page(void *ptr) + { |