diff options
| author | Becky Bruce <beckyb@kernel.crashing.org> | 2009-04-20 11:26:48 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-05-19 00:46:22 -0500 |
| commit | 89d93347d1f66832c43e6b25a669fddff89929b5 (patch) | |
| tree | 848b3dbba4384bd3842f42ea35e107b21c0f66bb /arch | |
| parent | da385780489db4f55dad96609511a9a6d1b041cb (diff) | |
powerpc: make dma_window_* in pci_controller struct avail on 32b
Also, convert them to resource_size_t (which is unsigned long
on 64-bit, so it's not a change there).
We will be using these on fsl 32b to indicate the start and size
address of memory that the pci controller can actually reach - this
is needed to determine if an address requires bounce buffering. For
now, initialize them to a standard value; in the near future, the
value will be calculated based on how the inbound windows are
programmed.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Ben Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 84007afabdb..9861258f6a4 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -140,10 +140,12 @@ struct pci_controller { struct resource io_resource; struct resource mem_resources[3]; int global_number; /* PCI domain number */ + + resource_size_t dma_window_base_cur; + resource_size_t dma_window_size; + #ifdef CONFIG_PPC64 unsigned long buid; - unsigned long dma_window_base_cur; - unsigned long dma_window_size; void *private_data; #endif /* CONFIG_PPC64 */ diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index 78021d8afc5..376603df7c4 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -152,6 +152,10 @@ static void __init setup_pci_atmu(struct pci_controller *hose, out_be32(&pci->piw[2].piwbar,0x00000000); out_be32(&pci->piw[2].piwar, PIWAR_2G); + /* Save the base address and size covered by inbound window mappings */ + hose->dma_window_base_cur = 0x00000000; + hose->dma_window_size = 0x80000000; + iounmap(pci); } |