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author | Keir Fraser <keir.fraser@citrix.com> | 2008-10-09 12:47:31 +0100 |
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committer | Keir Fraser <keir.fraser@citrix.com> | 2008-10-09 12:47:31 +0100 |
commit | b79e6e11f8aee9491f6cf60ae21669ce66d4b4e4 (patch) | |
tree | 4639a38cc62af9e8844a56dc3412e193a85f3ed5 /xen/arch/x86/pci.c | |
parent | aa2c2fc5085c008e6401037eca683a55be374ec5 (diff) | |
download | xen-b79e6e11f8aee9491f6cf60ae21669ce66d4b4e4.tar.gz xen-b79e6e11f8aee9491f6cf60ae21669ce66d4b4e4.tar.bz2 xen-b79e6e11f8aee9491f6cf60ae21669ce66d4b4e4.zip |
vtd: Make some pci access functions architecture independent.
Signed-off-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Diffstat (limited to 'xen/arch/x86/pci.c')
-rw-r--r-- | xen/arch/x86/pci.c | 61 |
1 files changed, 1 insertions, 60 deletions
diff --git a/xen/arch/x86/pci.c b/xen/arch/x86/pci.c index e139313e5f..e7e5f81dd4 100644 --- a/xen/arch/x86/pci.c +++ b/xen/arch/x86/pci.c @@ -1,12 +1,9 @@ /****************************************************************************** * pci.c * - * PCI access functions. + * Architecture-dependent PCI access functions. */ -#include <xen/config.h> -#include <xen/pci.h> -#include <xen/pci_regs.h> #include <xen/spinlock.h> #include <asm/io.h> @@ -118,59 +115,3 @@ void pci_conf_write32( pci_conf_write(PCI_CONF_ADDRESS(bus, dev, func, reg), 0, 4, data); } -int pci_find_cap_offset(u8 bus, u8 dev, u8 func, u8 cap) -{ - u8 id; - int max_cap = 48; - u8 pos = PCI_CAPABILITY_LIST; - u16 status; - - status = pci_conf_read16(bus, dev, func, PCI_STATUS); - if ( (status & PCI_STATUS_CAP_LIST) == 0 ) - return 0; - - while ( max_cap-- ) - { - pos = pci_conf_read8(bus, dev, func, pos); - if ( pos < 0x40 ) - break; - - pos &= ~3; - id = pci_conf_read8(bus, dev, func, pos + PCI_CAP_LIST_ID); - - if ( id == 0xff ) - break; - else if ( id == cap ) - return pos; - - pos += PCI_CAP_LIST_NEXT; - } - - return 0; -} - -int pci_find_next_cap(u8 bus, unsigned int devfn, u8 pos, int cap) -{ - u8 id; - int ttl = 48; - - while ( ttl-- ) - { - pos = pci_conf_read8(bus, PCI_SLOT(devfn), PCI_FUNC(devfn), pos); - if ( pos < 0x40 ) - break; - - pos &= ~3; - id = pci_conf_read8(bus, PCI_SLOT(devfn), PCI_FUNC(devfn), - pos + PCI_CAP_LIST_ID); - - if ( id == 0xff ) - break; - if ( id == cap ) - return pos; - - pos += PCI_CAP_LIST_NEXT; - } - return 0; -} - |