Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759584AbYGKLJo (ORCPT ); Fri, 11 Jul 2008 07:09:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755613AbYGKLCx (ORCPT ); Fri, 11 Jul 2008 07:02:53 -0400 Received: from outbound-sin.frontbridge.com ([207.46.51.80]:37263 "EHLO SG2EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755658AbYGKLCv (ORCPT ); Fri, 11 Jul 2008 07:02:51 -0400 X-BigFish: VPS25(zzzz10d3izz5a6ciz32i87il43j67h) X-Spam-TCS-SCL: 6:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0K3U9CB-02-S0T-01 From: Robert Richter To: Ingo Molnar , Thomas Gleixner CC: LKML , Robert Richter , Yinghai Lu Subject: [PATCH 1/2] x86/pci: renamed: numa.c -> numaq_32.c Date: Fri, 11 Jul 2008 12:18:40 +0200 Message-ID: <1215771521-6848-2-git-send-email-robert.richter@amd.com> X-Mailer: git-send-email 1.5.5.4 In-Reply-To: <1215771521-6848-1-git-send-email-robert.richter@amd.com> References: <1215771521-6848-1-git-send-email-robert.richter@amd.com> X-OriginalArrivalTime: 11 Jul 2008 11:02:35.0820 (UTC) FILETIME=[A01776C0:01C8E345] MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9859 Lines: 400 Cc: Yinghai Lu Signed-off-by: Robert Richter --- arch/x86/pci/Makefile | 2 +- arch/x86/pci/numa.c | 178 ----------------------------------------------- arch/x86/pci/numaq_32.c | 178 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 179 insertions(+), 179 deletions(-) delete mode 100644 arch/x86/pci/numa.c create mode 100644 arch/x86/pci/numaq_32.c diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile index 28451f4..d49202e 100644 --- a/arch/x86/pci/Makefile +++ b/arch/x86/pci/Makefile @@ -11,7 +11,7 @@ obj-y += legacy.o irq.o obj-$(CONFIG_X86_VISWS) += visws.o -obj-$(CONFIG_X86_NUMAQ) += numa.o +obj-$(CONFIG_X86_NUMAQ) += numaq_32.o obj-y += common.o early.o obj-y += amd_bus.o diff --git a/arch/x86/pci/numa.c b/arch/x86/pci/numa.c deleted file mode 100644 index 8b5ca19..0000000 --- a/arch/x86/pci/numa.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * numa.c - Low-level PCI access for NUMA-Q machines - */ - -#include -#include -#include -#include -#include -#include "pci.h" - -#define XQUAD_PORTIO_BASE 0xfe400000 -#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */ - -#define BUS2QUAD(global) (mp_bus_id_to_node[global]) - -#define BUS2LOCAL(global) (mp_bus_id_to_local[global]) - -#define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local]) - -/* Where the IO area was mapped on multiquad, always 0 otherwise */ -void *xquad_portio; -EXPORT_SYMBOL(xquad_portio); - -#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port) - -#define PCI_CONF1_MQ_ADDRESS(bus, devfn, reg) \ - (0x80000000 | (BUS2LOCAL(bus) << 16) | (devfn << 8) | (reg & ~3)) - -static void write_cf8(unsigned bus, unsigned devfn, unsigned reg) -{ - unsigned val = PCI_CONF1_MQ_ADDRESS(bus, devfn, reg); - if (xquad_portio) - writel(val, XQUAD_PORT_ADDR(0xcf8, BUS2QUAD(bus))); - else - outl(val, 0xCF8); -} - -static int pci_conf1_mq_read(unsigned int seg, unsigned int bus, - unsigned int devfn, int reg, int len, u32 *value) -{ - unsigned long flags; - void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus)); - - if (!value || (bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255)) - return -EINVAL; - - spin_lock_irqsave(&pci_config_lock, flags); - - write_cf8(bus, devfn, reg); - - switch (len) { - case 1: - if (xquad_portio) - *value = readb(adr + (reg & 3)); - else - *value = inb(0xCFC + (reg & 3)); - break; - case 2: - if (xquad_portio) - *value = readw(adr + (reg & 2)); - else - *value = inw(0xCFC + (reg & 2)); - break; - case 4: - if (xquad_portio) - *value = readl(adr); - else - *value = inl(0xCFC); - break; - } - - spin_unlock_irqrestore(&pci_config_lock, flags); - - return 0; -} - -static int pci_conf1_mq_write(unsigned int seg, unsigned int bus, - unsigned int devfn, int reg, int len, u32 value) -{ - unsigned long flags; - void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus)); - - if ((bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255)) - return -EINVAL; - - spin_lock_irqsave(&pci_config_lock, flags); - - write_cf8(bus, devfn, reg); - - switch (len) { - case 1: - if (xquad_portio) - writeb(value, adr + (reg & 3)); - else - outb((u8)value, 0xCFC + (reg & 3)); - break; - case 2: - if (xquad_portio) - writew(value, adr + (reg & 2)); - else - outw((u16)value, 0xCFC + (reg & 2)); - break; - case 4: - if (xquad_portio) - writel(value, adr + reg); - else - outl((u32)value, 0xCFC); - break; - } - - spin_unlock_irqrestore(&pci_config_lock, flags); - - return 0; -} - -#undef PCI_CONF1_MQ_ADDRESS - -static struct pci_raw_ops pci_direct_conf1_mq = { - .read = pci_conf1_mq_read, - .write = pci_conf1_mq_write -}; - - -static void __devinit pci_fixup_i450nx(struct pci_dev *d) -{ - /* - * i450NX -- Find and scan all secondary buses on all PXB's. - */ - int pxb, reg; - u8 busno, suba, subb; - int quad = BUS2QUAD(d->bus->number); - - printk("PCI: Searching for i450NX host bridges on %s\n", pci_name(d)); - reg = 0xd0; - for(pxb=0; pxb<2; pxb++) { - pci_read_config_byte(d, reg++, &busno); - pci_read_config_byte(d, reg++, &suba); - pci_read_config_byte(d, reg++, &subb); - DBG("i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb); - if (busno) { - /* Bus A */ - pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, busno)); - } - if (suba < subb) { - /* Bus B */ - pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, suba+1)); - } - } - pcibios_last_bus = -1; -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx); - -int __init pci_numa_init(void) -{ - int quad; - - if (!found_numaq) - return 0; - - raw_pci_ops = &pci_direct_conf1_mq; - - if (pcibios_scanned++) - return 0; - - pci_root_bus = pcibios_scan_root(0); - if (pci_root_bus) - pci_bus_add_devices(pci_root_bus); - if (num_online_nodes() > 1) - for_each_online_node(quad) { - if (quad == 0) - continue; - printk("Scanning PCI bus %d for quad %d\n", - QUADLOCAL2BUS(quad,0), quad); - pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, 0)); - } - return 0; -} diff --git a/arch/x86/pci/numaq_32.c b/arch/x86/pci/numaq_32.c new file mode 100644 index 0000000..8b5ca19 --- /dev/null +++ b/arch/x86/pci/numaq_32.c @@ -0,0 +1,178 @@ +/* + * numa.c - Low-level PCI access for NUMA-Q machines + */ + +#include +#include +#include +#include +#include +#include "pci.h" + +#define XQUAD_PORTIO_BASE 0xfe400000 +#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */ + +#define BUS2QUAD(global) (mp_bus_id_to_node[global]) + +#define BUS2LOCAL(global) (mp_bus_id_to_local[global]) + +#define QUADLOCAL2BUS(quad,local) (quad_local_to_mp_bus_id[quad][local]) + +/* Where the IO area was mapped on multiquad, always 0 otherwise */ +void *xquad_portio; +EXPORT_SYMBOL(xquad_portio); + +#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port) + +#define PCI_CONF1_MQ_ADDRESS(bus, devfn, reg) \ + (0x80000000 | (BUS2LOCAL(bus) << 16) | (devfn << 8) | (reg & ~3)) + +static void write_cf8(unsigned bus, unsigned devfn, unsigned reg) +{ + unsigned val = PCI_CONF1_MQ_ADDRESS(bus, devfn, reg); + if (xquad_portio) + writel(val, XQUAD_PORT_ADDR(0xcf8, BUS2QUAD(bus))); + else + outl(val, 0xCF8); +} + +static int pci_conf1_mq_read(unsigned int seg, unsigned int bus, + unsigned int devfn, int reg, int len, u32 *value) +{ + unsigned long flags; + void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus)); + + if (!value || (bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255)) + return -EINVAL; + + spin_lock_irqsave(&pci_config_lock, flags); + + write_cf8(bus, devfn, reg); + + switch (len) { + case 1: + if (xquad_portio) + *value = readb(adr + (reg & 3)); + else + *value = inb(0xCFC + (reg & 3)); + break; + case 2: + if (xquad_portio) + *value = readw(adr + (reg & 2)); + else + *value = inw(0xCFC + (reg & 2)); + break; + case 4: + if (xquad_portio) + *value = readl(adr); + else + *value = inl(0xCFC); + break; + } + + spin_unlock_irqrestore(&pci_config_lock, flags); + + return 0; +} + +static int pci_conf1_mq_write(unsigned int seg, unsigned int bus, + unsigned int devfn, int reg, int len, u32 value) +{ + unsigned long flags; + void *adr __iomem = XQUAD_PORT_ADDR(0xcfc, BUS2QUAD(bus)); + + if ((bus >= MAX_MP_BUSSES) || (devfn > 255) || (reg > 255)) + return -EINVAL; + + spin_lock_irqsave(&pci_config_lock, flags); + + write_cf8(bus, devfn, reg); + + switch (len) { + case 1: + if (xquad_portio) + writeb(value, adr + (reg & 3)); + else + outb((u8)value, 0xCFC + (reg & 3)); + break; + case 2: + if (xquad_portio) + writew(value, adr + (reg & 2)); + else + outw((u16)value, 0xCFC + (reg & 2)); + break; + case 4: + if (xquad_portio) + writel(value, adr + reg); + else + outl((u32)value, 0xCFC); + break; + } + + spin_unlock_irqrestore(&pci_config_lock, flags); + + return 0; +} + +#undef PCI_CONF1_MQ_ADDRESS + +static struct pci_raw_ops pci_direct_conf1_mq = { + .read = pci_conf1_mq_read, + .write = pci_conf1_mq_write +}; + + +static void __devinit pci_fixup_i450nx(struct pci_dev *d) +{ + /* + * i450NX -- Find and scan all secondary buses on all PXB's. + */ + int pxb, reg; + u8 busno, suba, subb; + int quad = BUS2QUAD(d->bus->number); + + printk("PCI: Searching for i450NX host bridges on %s\n", pci_name(d)); + reg = 0xd0; + for(pxb=0; pxb<2; pxb++) { + pci_read_config_byte(d, reg++, &busno); + pci_read_config_byte(d, reg++, &suba); + pci_read_config_byte(d, reg++, &subb); + DBG("i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb); + if (busno) { + /* Bus A */ + pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, busno)); + } + if (suba < subb) { + /* Bus B */ + pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, suba+1)); + } + } + pcibios_last_bus = -1; +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82451NX, pci_fixup_i450nx); + +int __init pci_numa_init(void) +{ + int quad; + + if (!found_numaq) + return 0; + + raw_pci_ops = &pci_direct_conf1_mq; + + if (pcibios_scanned++) + return 0; + + pci_root_bus = pcibios_scan_root(0); + if (pci_root_bus) + pci_bus_add_devices(pci_root_bus); + if (num_online_nodes() > 1) + for_each_online_node(quad) { + if (quad == 0) + continue; + printk("Scanning PCI bus %d for quad %d\n", + QUADLOCAL2BUS(quad,0), quad); + pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, 0)); + } + return 0; +} -- 1.5.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/