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Date: Fri, 11 Jul 2008 12:18:40 +0200
From: Robert Richter <robert.richter@....com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>
CC: LKML <linux-kernel@...r.kernel.org>,
Robert Richter <robert.richter@....com>,
Yinghai Lu <yhlu.kernel@...il.com>
Subject: [PATCH 1/2] x86/pci: renamed: numa.c -> numaq_32.c
Cc: Yinghai Lu <yhlu.kernel@...il.com>
Signed-off-by: Robert Richter <robert.richter@....com>
---
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 <linux/pci.h>
-#include <linux/init.h>
-#include <linux/nodemask.h>
-#include <mach_apic.h>
-#include <asm/mpspec.h>
-#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 <linux/pci.h>
+#include <linux/init.h>
+#include <linux/nodemask.h>
+#include <mach_apic.h>
+#include <asm/mpspec.h>
+#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
--
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