forked from KolibriOS/kolibrios
Interpret 64-bit PCI BAR's properly.
git-svn-id: svn://kolibrios.org@7250 a494cfbc-eb01-0410-851d-a64ba20cac60
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hidnplayr
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@ -1,6 +1,6 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2018. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; ;;
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;; RTL8169 driver for KolibriOS ;;
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;; RTL8169 driver for KolibriOS ;;
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@ -251,7 +251,6 @@ struct device ETH_DEVICE
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pci_dev dd ?
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pci_dev dd ?
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irq_line db ?
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irq_line db ?
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rb 3 ; align 4
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rb 3 ; align 4
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mmio_addr dd ? ; memory map physical address
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pcfg dd ?
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pcfg dd ?
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mcfg dd ?
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mcfg dd ?
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@ -1,6 +1,6 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2018. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; ;;
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;; FORCEDETH.INC ;;
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;; FORCEDETH.INC ;;
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@ -582,7 +582,13 @@ probe:
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@@:
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@@:
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; Now, it's time to find the base mmio addres of the PCI device
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; Now, it's time to find the base mmio addres of the PCI device
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stdcall PCI_find_mmio32, [ebx + device.pci_bus], [ebx + device.pci_dev] ; returns in eax
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stdcall PCI_find_mmio, [ebx + device.pci_bus], [ebx + device.pci_dev] ; returns in eax
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test eax, eax
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jnz @f
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DEBUGF 1, "No useable MMIO addresses found!\n"
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dec eax
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ret
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@@:
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DEBUGF 1,"mmio_addr= 0x%x\n", eax
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DEBUGF 1,"mmio_addr= 0x%x\n", eax
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; Create virtual mapping of the physical memory
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; Create virtual mapping of the physical memory
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@ -1,6 +1,6 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2017. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2018. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; ;;
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;; i8254x driver for KolibriOS ;;
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;; i8254x driver for KolibriOS ;;
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@ -389,7 +389,9 @@ proc service_proc stdcall, ioctl:dword
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; Now, it's time to find the base mmio addres of the PCI device
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; Now, it's time to find the base mmio addres of the PCI device
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stdcall PCI_find_mmio32, [ebx + device.pci_bus], [ebx + device.pci_dev] ; returns in eax
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stdcall PCI_find_mmio, [ebx + device.pci_bus], [ebx + device.pci_dev] ; returns in eax
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test eax, eax
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jz .destroy
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; Create virtual mapping of the physical memory
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; Create virtual mapping of the physical memory
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@ -1,6 +1,6 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2018. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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;; GNU GENERAL PUBLIC LICENSE ;;
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@ -102,14 +102,20 @@ struct PCI_header02 PCI_header
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ends
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ends
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; Base address bits
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; Base address bits
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PCI_BASE_ADDRESS_SPACE_IO = 0x01
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PCI_BASE_ADDRESS_SPACE_IO = 0x01
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PCI_BASE_ADDRESS_IO_MASK = 0xFFFFFFFC
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PCI_BASE_ADDRESS_IO_MASK = 0xFFFFFFFC
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PCI_BASE_ADDRESS_MEM_MASK = 0xFFFFFFF0
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PCI_BASE_ADDRESS_MEM_MASK = 0xFFFFFFF0
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PCI_BASE_ADDRESS_MEM_TYPE_MASK = 0x00000006
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PCI_BASE_ADDRESS_MEM_TYPE_32 = 0x0
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PCI_BASE_ADDRESS_MEM_TYPE_RESERVED = 0x02
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PCI_BASE_ADDRESS_MEM_TYPE_64 = 0x4
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; command bits
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; command bits
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PCI_CMD_PIO = 0x01 ; bit0: io space control
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PCI_CMD_PIO = 0x01 ; bit0: io space control
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PCI_CMD_MMIO = 0x02 ; bit1: memory space control
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PCI_CMD_MMIO = 0x02 ; bit1: memory space control
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PCI_CMD_MASTER = 0x04 ; bit2: device acts as a PCI master
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PCI_CMD_MASTER = 0x04 ; bit2: device acts as a PCI master
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PCI_CMD_INTX_DISABLE = 0x400 ; INTx emulation disable
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; status bits
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; status bits
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PCI_STATUS_CAPA = 0x10 ; bit4: new capabilities available
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PCI_STATUS_CAPA = 0x10 ; bit4: new capabilities available
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@ -143,27 +149,51 @@ endp
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end if
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end if
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if used PCI_find_mmio32
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if used PCI_find_mmio
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proc PCI_find_mmio32 stdcall bus, dev
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proc PCI_find_mmio stdcall bus, dev
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push esi
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push esi ebx
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mov esi, PCI_header00.base_addr_0
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mov esi, PCI_header00.base_addr_0
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.check:
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.check:
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invoke PciRead32, [bus], [dev], esi
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invoke PciRead32, [bus], [dev], esi
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test eax, PCI_BASE_ADDRESS_SPACE_IO ; mmio address?
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DEBUGF 1, "BAR: 0x%x\n", eax
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jnz .inc
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mov ebx, eax
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test eax, 100b ; 64 bit?
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test eax, PCI_BASE_ADDRESS_SPACE_IO ; MMIO address?
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jnz .inc
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jnz .next
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and eax, not 1111b
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and ebx, PCI_BASE_ADDRESS_MEM_TYPE_MASK
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pop esi
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cmp bl, PCI_BASE_ADDRESS_MEM_TYPE_64
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je .is64
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cmp bl, PCI_BASE_ADDRESS_MEM_TYPE_32
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jne .next
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; Ok, we have a 32-bit BAR.
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and eax, PCI_BASE_ADDRESS_MEM_MASK
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pop ebx esi
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DEBUGF 1, "32-bit MMIO address found: 0x%x\n", eax
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ret
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ret
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.inc:
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.is64:
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; Ok, we have a 64-bit BAR, check if the upper 32-bits are 0, then we can use it..
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push eax
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add esi, 4
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cmp esi, PCI_header00.base_addr_5
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ja .fail
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invoke PciRead32, [bus], [dev], esi
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test eax, eax
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pop eax
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jnz .next
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and eax, PCI_BASE_ADDRESS_MEM_MASK
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pop ebx esi
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DEBUGF 1, "64-bit MMIO address found: 0x00000000%x\n", eax
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ret
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.next:
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add esi, 4
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add esi, 4
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cmp esi, PCI_header00.base_addr_5
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cmp esi, PCI_header00.base_addr_5
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jbe .check
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jbe .check
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.fail:
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xor eax, eax
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xor eax, eax
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pop esi
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pop ebx esi
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DEBUGF 1, "No usable MMIO addresses found!\n"
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ret
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ret
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endp
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endp
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