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| author | Becky Bruce <beckyb@kernel.crashing.org> | 2009-05-14 12:42:28 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-09 16:49:18 +1000 |
| commit | ec3cf2ece22a8ede7478bf38e2a818986322662b (patch) | |
| tree | 76654ac60da3d2ac27f49769f825215d55b03276 /arch/powerpc/kernel/setup_32.c | |
| parent | 1babddbc2e83ab98fc4dd0a3e9bd7b2d30be7e32 (diff) | |
| download | blackbird-op-linux-ec3cf2ece22a8ede7478bf38e2a818986322662b.tar.gz blackbird-op-linux-ec3cf2ece22a8ede7478bf38e2a818986322662b.zip | |
powerpc: Add support for swiotlb on 32-bit
This patch includes the basic infrastructure to use swiotlb
bounce buffering on 32-bit powerpc. It is not yet enabled on
any platforms. Probably the most interesting bit is the
addition of addr_needs_map to dma_ops - we need this as
a dma_op because the decision of whether or not an addr
can be mapped by a device is device-specific.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/setup_32.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_32.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 9e1ca745d8f0..1d154248cf40 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -39,6 +39,7 @@ #include <asm/serial.h> #include <asm/udbg.h> #include <asm/mmu_context.h> +#include <asm/swiotlb.h> #include "setup.h" @@ -332,6 +333,11 @@ void __init setup_arch(char **cmdline_p) ppc_md.setup_arch(); if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab); +#ifdef CONFIG_SWIOTLB + if (ppc_swiotlb_enable) + swiotlb_init(); +#endif + paging_init(); /* Initialize the MMU context management stuff */ |
