redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

[IA64-SGI] Altix only: Fix for sn_dma_flush

Browse source 
The following patch fixes a bug in the SGI Altix sn_dma_flush code.  
sn_dma_flush is broken in 2.6.  The code isn't waiting for the DMA 
data to be flushed out of the PIC ASIC. This patch is based off the 
linux-ia64-test-2.6.12 tree

Signed-off-by: Mike Habeck <habeck@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Mike Habeck 2005-03-25 19:34:00 -07:00 committed by Tony Luck
parent bb0fc08545
commit de7548d0e2
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/ia64/sn/pci/pcibr/pcibr_dma.c
View file

@ -301,7 +301,7 @@ void sn_dma_flush(uint64_t addr)
spin_lock_irqsave(&((struct sn_flush_device_list *)p)->
sfdl_flush_lock, flags);
p->sfdl_flush_value = 0;
*p->sfdl_flush_addr = 0;
/* force an interrupt. */
*(volatile uint32_t *)(p->sfdl_force_int_addr) = 1;