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| author | Michael Ellerman <mpe@ellerman.id.au> | 2015-08-07 09:19:44 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-08-18 12:29:49 +0300 |
| commit | f444f1f898d7c4bbe45d12ffe3f38349ff83ec4a (patch) | |
| tree | 16655ef672773678f8ce38a8158c83127a4aef5c /arch/powerpc/include/asm/spu_csa.h | |
| parent | 74b5037baa2011a2799e2c43adde7d171b072f9e (diff) | |
| download | linux-f444f1f898d7c4bbe45d12ffe3f38349ff83ec4a.tar.xz | |
powerpc/cell: Drop support for 64K local store on 4K kernels
Back in the olden days we added support for using 64K pages to map the
SPU (Synergistic Processing Unit) local store on Cell, when the main
kernel was using 4K pages.
This was useful at the time because distros were using 4K pages, but
using 64K pages on the SPUs could reduce TLB pressure there.
However these days the number of Cell users is approaching zero, and
supporting this option adds unpleasant complexity to the memory
management code.
So drop the option, CONFIG_SPU_FS_64K_LS, and all related code.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'arch/powerpc/include/asm/spu_csa.h')
| -rw-r--r-- | arch/powerpc/include/asm/spu_csa.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/spu_csa.h b/arch/powerpc/include/asm/spu_csa.h index a40fd491250c..51f80b41cda3 100644 --- a/arch/powerpc/include/asm/spu_csa.h +++ b/arch/powerpc/include/asm/spu_csa.h @@ -241,12 +241,6 @@ struct spu_priv2_collapsed { */ struct spu_state { struct spu_lscsa *lscsa; -#ifdef CONFIG_SPU_FS_64K_LS - int use_big_pages; - /* One struct page per 64k page */ -#define SPU_LSCSA_NUM_BIG_PAGES (sizeof(struct spu_lscsa) / 0x10000) - struct page *lscsa_pages[SPU_LSCSA_NUM_BIG_PAGES]; -#endif struct spu_problem_collapsed prob; struct spu_priv1_collapsed priv1; struct spu_priv2_collapsed priv2; |