mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-01 22:54:01 +00:00
Code Issues Releases Wiki Activity

powerpc: make dma_window_* in pci_controller struct avail on 32b

Browse source 
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>
This commit is contained in:
Becky Bruce 2009-04-20 11:26:48 -05:00 committed by Kumar Gala
parent da38578048
commit 89d93347d1
2 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
arch/powerpc/include/asm/pci-bridge.h
View file

@ -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 */

4
arch/powerpc/sysdev/fsl_pci.c
View file

@ -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);
}