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add proper ebu locking to ifxmips

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SVN-Revision: 11597
This commit is contained in:
John Crispin
2008-06-28 17:28:31 +00:00
parent 185ca444e3
commit ebc9555b5e
4 changed files with 42 additions and 26 deletions
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5
target/linux/ifxmips/files/arch/mips/pci/ops-ifxmips.c
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@@ -8,6 +8,7 @@
#include <asm/ifxmips/ifxmips_irq.h>
#include <asm/addrspace.h>
#include <linux/vmalloc.h>
#include <asm/ifxmips/ifxmips_ebu.h>
#define IFXMIPS_PCI_CFG_BUSNUM_SHF 16
#define IFXMIPS_PCI_CFG_DEVNUM_SHF 11
@@ -33,7 +34,7 @@ ifxmips_pci_config_access(unsigned char access_type,
|| ((devfn & 0xf8) == 0) || ((devfn & 0xf8) == 0x68))
return 1;
local_irq_save(flags);
spin_lock_irqsave(&ebu_lock, flags);
cfg_base = ifxmips_pci_mapped_cfg;
cfg_base |= (bus->number << IFXMIPS_PCI_CFG_BUSNUM_SHF) | (devfn <<
@@ -64,7 +65,7 @@ ifxmips_pci_config_access(unsigned char access_type,
cfg_base = (ifxmips_pci_mapped_cfg | (0x68 << IFXMIPS_PCI_CFG_FUNNUM_SHF)) + 4;
ifxmips_w32(temp, ((u32*)cfg_base));
local_irq_restore(flags);
spin_unlock_irqrestore(&ebu_lock, flags);
if (((*data) == 0xffffffff) && (access_type == PCI_ACCESS_READ))
return 1;