diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/openbios/drivers/pci.fs | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/openbios/drivers/pci.fs')
| -rw-r--r-- | qemu/roms/openbios/drivers/pci.fs | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/qemu/roms/openbios/drivers/pci.fs b/qemu/roms/openbios/drivers/pci.fs new file mode 100644 index 000000000..563b652a4 --- /dev/null +++ b/qemu/roms/openbios/drivers/pci.fs @@ -0,0 +1,92 @@ +[IFDEF] CONFIG_DRIVER_PCI + +: pci-addr-encode ( addr.lo addr.mi addr.hi ) + rot >r swap >r + encode-int + r> encode-int encode+ + r> encode-int encode+ + ; + +: pci-len-encode ( len.lo len.hi ) + encode-int + rot encode-int encode+ + ; + +\ Get region offset for BAR reg +: pci-bar-offset@ ( bar-reg -- off.lo off.hi -1 | 0 ) + " reg" active-package get-package-property 0= if + begin + decode-phys \ ( reg prop prop-len phys.lo phys.mid phys.hi ) + ff and 5 pick = if + >r >r 3drop r> r> + -1 exit + else + 2drop + then + \ Drop the size as we don't need it + decode-int drop decode-int drop + dup 0= + until + 3drop + 0 exit + else + 0 + then + ; + +\ Get region size for BAR reg +: pci-bar-size@ ( bar-reg -- size ) + " reg" active-package get-package-property 0= if + begin + decode-phys \ ( reg prop prop-len phys.lo phys.mid phys.hi ) + ff and 5 pick = if + 2drop decode-int drop + decode-int + >r 3drop r> + exit + else + 2drop decode-int drop + decode-int drop + then + dup 0= + until + 3drop + 0 \ default size of 0 if BAR not found + then + ; + +\ Get base address for configured BAR reg +: pci-bar-base@ ( bar-reg -- addr.lo addr.hi -1 | 0 ) + " assigned-addresses" active-package get-package-property 0= if + begin + decode-phys \ ( reg prop prop-len phys.lo phys.mid phys.hi ) + ff and 5 pick = if + >r >r 3drop r> r> + -1 exit + else + 2drop + then + \ Drop the size as we don't need it + decode-int drop decode-int drop + dup 0= + until + 3drop + 0 exit + else + 0 + then + ; + +\ Get PCI bus address and size for configured BAR reg +: pci-bar>pci-region ( bar-reg -- addr.lo addr.hi size ) + dup + >r pci-bar-offset@ if + swap r@ pci-bar-base@ if + swap d+ + then + swap r@ pci-bar-size@ + then + r> drop + ; + +[THEN] |