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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/mach-visws
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-i386/mach-visws')
-rw-r--r--include/asm-i386/mach-visws/cobalt.h125
-rw-r--r--include/asm-i386/mach-visws/do_timer.h52
-rw-r--r--include/asm-i386/mach-visws/entry_arch.h23
-rw-r--r--include/asm-i386/mach-visws/irq_vectors.h62
-rw-r--r--include/asm-i386/mach-visws/lithium.h53
-rw-r--r--include/asm-i386/mach-visws/mach_apic.h100
-rw-r--r--include/asm-i386/mach-visws/mach_apicdef.h12
-rw-r--r--include/asm-i386/mach-visws/piix4.h107
-rw-r--r--include/asm-i386/mach-visws/setup_arch_post.h49
-rw-r--r--include/asm-i386/mach-visws/setup_arch_pre.h5
-rw-r--r--include/asm-i386/mach-visws/smpboot_hooks.h24
11 files changed, 612 insertions, 0 deletions
diff --git a/include/asm-i386/mach-visws/cobalt.h b/include/asm-i386/mach-visws/cobalt.h
new file mode 100644
index 00000000000..33c36225a04
--- /dev/null
+++ b/include/asm-i386/mach-visws/cobalt.h
@@ -0,0 +1,125 @@
+#ifndef __I386_SGI_COBALT_H
+#define __I386_SGI_COBALT_H
+
+#include <asm/fixmap.h>
+
+/*
+ * Cobalt SGI Visual Workstation system ASIC
+ */
+
+#define CO_CPU_NUM_PHYS 0x1e00
+#define CO_CPU_TAB_PHYS (CO_CPU_NUM_PHYS + 2)
+
+#define CO_CPU_MAX 4
+
+#define CO_CPU_PHYS 0xc2000000
+#define CO_APIC_PHYS 0xc4000000
+
+/* see set_fixmap() and asm/fixmap.h */
+#define CO_CPU_VADDR (fix_to_virt(FIX_CO_CPU))
+#define CO_APIC_VADDR (fix_to_virt(FIX_CO_APIC))
+
+/* Cobalt CPU registers -- relative to CO_CPU_VADDR, use co_cpu_*() */
+#define CO_CPU_REV 0x08
+#define CO_CPU_CTRL 0x10
+#define CO_CPU_STAT 0x20
+#define CO_CPU_TIMEVAL 0x30
+
+/* CO_CPU_CTRL bits */
+#define CO_CTRL_TIMERUN 0x04 /* 0 == disabled */
+#define CO_CTRL_TIMEMASK 0x08 /* 0 == unmasked */
+
+/* CO_CPU_STATUS bits */
+#define CO_STAT_TIMEINTR 0x02 /* (r) 1 == int pend, (w) 0 == clear */
+
+/* CO_CPU_TIMEVAL value */
+#define CO_TIME_HZ 100000000 /* Cobalt core rate */
+
+/* Cobalt APIC registers -- relative to CO_APIC_VADDR, use co_apic_*() */
+#define CO_APIC_HI(n) (((n) * 0x10) + 4)
+#define CO_APIC_LO(n) ((n) * 0x10)
+#define CO_APIC_ID 0x0ffc
+
+/* CO_APIC_ID bits */
+#define CO_APIC_ENABLE 0x00000100
+
+/* CO_APIC_LO bits */
+#define CO_APIC_MASK 0x00010000 /* 0 = enabled */
+#define CO_APIC_LEVEL 0x00008000 /* 0 = edge */
+
+/*
+ * Where things are physically wired to Cobalt
+ * #defines with no board _<type>_<rev>_ are common to all (thus far)
+ */
+#define CO_APIC_IDE0 4
+#define CO_APIC_IDE1 2 /* Only on 320 */
+
+#define CO_APIC_8259 12 /* serial, floppy, par-l-l */
+
+/* Lithium PCI Bridge A -- "the one with 82557 Ethernet" */
+#define CO_APIC_PCIA_BASE0 0 /* and 1 */ /* slot 0, line 0 */
+#define CO_APIC_PCIA_BASE123 5 /* and 6 */ /* slot 0, line 1 */
+
+#define CO_APIC_PIIX4_USB 7 /* this one is weird */
+
+/* Lithium PCI Bridge B -- "the one with PIIX4" */
+#define CO_APIC_PCIB_BASE0 8 /* and 9-12 *//* slot 0, line 0 */
+#define CO_APIC_PCIB_BASE123 13 /* 14.15 */ /* slot 0, line 1 */
+
+#define CO_APIC_VIDOUT0 16
+#define CO_APIC_VIDOUT1 17
+#define CO_APIC_VIDIN0 18
+#define CO_APIC_VIDIN1 19
+
+#define CO_APIC_LI_AUDIO 22
+
+#define CO_APIC_AS 24
+#define CO_APIC_RE 25
+
+#define CO_APIC_CPU 28 /* Timer and Cache interrupt */
+#define CO_APIC_NMI 29
+#define CO_APIC_LAST CO_APIC_NMI
+
+/*
+ * This is how irqs are assigned on the Visual Workstation.
+ * Legacy devices get irq's 1-15 (system clock is 0 and is CO_APIC_CPU).
+ * All other devices (including PCI) go to Cobalt and are irq's 16 on up.
+ */
+#define CO_IRQ_APIC0 16 /* irq of apic entry 0 */
+#define IS_CO_APIC(irq) ((irq) >= CO_IRQ_APIC0)
+#define CO_IRQ(apic) (CO_IRQ_APIC0 + (apic)) /* apic ent to irq */
+#define CO_APIC(irq) ((irq) - CO_IRQ_APIC0) /* irq to apic ent */
+#define CO_IRQ_IDE0 14 /* knowledge of... */
+#define CO_IRQ_IDE1 15 /* ... ide driver defaults! */
+#define CO_IRQ_8259 CO_IRQ(CO_APIC_8259)
+
+#ifdef CONFIG_X86_VISWS_APIC
+extern __inline void co_cpu_write(unsigned long reg, unsigned long v)
+{
+ *((volatile unsigned long *)(CO_CPU_VADDR+reg))=v;
+}
+
+extern __inline unsigned long co_cpu_read(unsigned long reg)
+{
+ return *((volatile unsigned long *)(CO_CPU_VADDR+reg));
+}
+
+extern __inline void co_apic_write(unsigned long reg, unsigned long v)
+{
+ *((volatile unsigned long *)(CO_APIC_VADDR+reg))=v;
+}
+
+extern __inline unsigned long co_apic_read(unsigned long reg)
+{
+ return *((volatile unsigned long *)(CO_APIC_VADDR+reg));
+}
+#endif
+
+extern char visws_board_type;
+
+#define VISWS_320 0
+#define VISWS_540 1
+
+extern char visws_board_rev;
+
+#endif /* __I386_SGI_COBALT_H */
diff --git a/include/asm-i386/mach-visws/do_timer.h b/include/asm-i386/mach-visws/do_timer.h
new file mode 100644
index 00000000000..33acd50fd9a
--- /dev/null
+++ b/include/asm-i386/mach-visws/do_timer.h
@@ -0,0 +1,52 @@
+/* defines for inline arch setup functions */
+
+#include <asm/fixmap.h>
+#include "cobalt.h"
+
+static inline void do_timer_interrupt_hook(struct pt_regs *regs)
+{
+ /* Clear the interrupt */
+ co_cpu_write(CO_CPU_STAT,co_cpu_read(CO_CPU_STAT) & ~CO_STAT_TIMEINTR);
+
+ do_timer(regs);
+#ifndef CONFIG_SMP
+ update_process_times(user_mode(regs));
+#endif
+/*
+ * In the SMP case we use the local APIC timer interrupt to do the
+ * profiling, except when we simulate SMP mode on a uniprocessor
+ * system, in that case we have to call the local interrupt handler.
+ */
+#ifndef CONFIG_X86_LOCAL_APIC
+ profile_tick(CPU_PROFILING, regs);
+#else
+ if (!using_apic_timer)
+ smp_local_timer_interrupt(regs);
+#endif
+}
+
+static inline int do_timer_overflow(int count)
+{
+ int i;
+
+ spin_lock(&i8259A_lock);
+ /*
+ * This is tricky when I/O APICs are used;
+ * see do_timer_interrupt().
+ */
+ i = inb(0x20);
+ spin_unlock(&i8259A_lock);
+
+ /* assumption about timer being IRQ0 */
+ if (i & 0x01) {
+ /*
+ * We cannot detect lost timer interrupts ...
+ * well, that's why we call them lost, don't we? :)
+ * [hmm, on the Pentium and Alpha we can ... sort of]
+ */
+ count -= LATCH;
+ } else {
+ printk("do_slow_gettimeoffset(): hardware timer problem?\n");
+ }
+ return count;
+}
diff --git a/include/asm-i386/mach-visws/entry_arch.h b/include/asm-i386/mach-visws/entry_arch.h
new file mode 100644
index 00000000000..b183fa6d83d
--- /dev/null
+++ b/include/asm-i386/mach-visws/entry_arch.h
@@ -0,0 +1,23 @@
+/*
+ * The following vectors are part of the Linux architecture, there
+ * is no hardware IRQ pin equivalent for them, they are triggered
+ * through the ICC by us (IPIs)
+ */
+#ifdef CONFIG_X86_SMP
+BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
+BUILD_INTERRUPT(invalidate_interrupt,INVALIDATE_TLB_VECTOR)
+BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
+#endif
+
+/*
+ * every pentium local APIC has two 'local interrupts', with a
+ * soft-definable vector attached to both interrupts, one of
+ * which is a timer interrupt, the other one is error counter
+ * overflow. Linux uses the local APIC timer interrupt to get
+ * a much simpler SMP time architecture:
+ */
+#ifdef CONFIG_X86_LOCAL_APIC
+BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
+BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
+BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
+#endif
diff --git a/include/asm-i386/mach-visws/irq_vectors.h b/include/asm-i386/mach-visws/irq_vectors.h
new file mode 100644
index 00000000000..cb572d8db50
--- /dev/null
+++ b/include/asm-i386/mach-visws/irq_vectors.h
@@ -0,0 +1,62 @@
+#ifndef _ASM_IRQ_VECTORS_H
+#define _ASM_IRQ_VECTORS_H
+
+/*
+ * IDT vectors usable for external interrupt sources start
+ * at 0x20:
+ */
+#define FIRST_EXTERNAL_VECTOR 0x20
+
+#define SYSCALL_VECTOR 0x80
+
+/*
+ * Vectors 0x20-0x2f are used for ISA interrupts.
+ */
+
+/*
+ * Special IRQ vectors used by the SMP architecture, 0xf0-0xff
+ *
+ * some of the following vectors are 'rare', they are merged
+ * into a single vector (CALL_FUNCTION_VECTOR) to save vector space.
+ * TLB, reschedule and local APIC vectors are performance-critical.
+ *
+ * Vectors 0xf0-0xfa are free (reserved for future Linux use).
+ */
+#define SPURIOUS_APIC_VECTOR 0xff
+#define ERROR_APIC_VECTOR 0xfe
+#define INVALIDATE_TLB_VECTOR 0xfd
+#define RESCHEDULE_VECTOR 0xfc
+#define CALL_FUNCTION_VECTOR 0xfb
+
+#define THERMAL_APIC_VECTOR 0xf0
+/*
+ * Local APIC timer IRQ vector is on a different priority level,
+ * to work around the 'lost local interrupt if more than 2 IRQ
+ * sources per level' errata.
+ */
+#define LOCAL_TIMER_VECTOR 0xef
+
+/*
+ * First APIC vector available to drivers: (vectors 0x30-0xee)
+ * we start at 0x31 to spread out vectors evenly between priority
+ * levels. (0x80 is the syscall vector)
+ */
+#define FIRST_DEVICE_VECTOR 0x31
+#define FIRST_SYSTEM_VECTOR 0xef
+
+#define TIMER_IRQ 0
+
+/*
+ * IRQ definitions
+ */
+#define NR_VECTORS 256
+#define NR_IRQS 224
+#define NR_IRQ_VECTORS NR_IRQS
+
+#define FPU_IRQ 13
+
+#define FIRST_VM86_IRQ 3
+#define LAST_VM86_IRQ 15
+#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15)
+
+#endif /* _ASM_IRQ_VECTORS_H */
diff --git a/include/asm-i386/mach-visws/lithium.h b/include/asm-i386/mach-visws/lithium.h
new file mode 100644
index 00000000000..d443e68d006
--- /dev/null
+++ b/include/asm-i386/mach-visws/lithium.h
@@ -0,0 +1,53 @@
+#ifndef __I386_SGI_LITHIUM_H
+#define __I386_SGI_LITHIUM_H
+
+#include <asm/fixmap.h>
+
+/*
+ * Lithium is the SGI Visual Workstation I/O ASIC
+ */
+
+#define LI_PCI_A_PHYS 0xfc000000 /* Enet is dev 3 */
+#define LI_PCI_B_PHYS 0xfd000000 /* PIIX4 is here */
+
+/* see set_fixmap() and asm/fixmap.h */
+#define LI_PCIA_VADDR (fix_to_virt(FIX_LI_PCIA))
+#define LI_PCIB_VADDR (fix_to_virt(FIX_LI_PCIB))
+
+/* Not a standard PCI? (not in linux/pci.h) */
+#define LI_PCI_BUSNUM 0x44 /* lo8: primary, hi8: sub */
+#define LI_PCI_INTEN 0x46
+
+/* LI_PCI_INTENT bits */
+#define LI_INTA_0 0x0001
+#define LI_INTA_1 0x0002
+#define LI_INTA_2 0x0004
+#define LI_INTA_3 0x0008
+#define LI_INTA_4 0x0010
+#define LI_INTB 0x0020
+#define LI_INTC 0x0040
+#define LI_INTD 0x0080
+
+/* More special purpose macros... */
+extern __inline void li_pcia_write16(unsigned long reg, unsigned short v)
+{
+ *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
+}
+
+extern __inline unsigned short li_pcia_read16(unsigned long reg)
+{
+ return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
+}
+
+extern __inline void li_pcib_write16(unsigned long reg, unsigned short v)
+{
+ *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
+}
+
+extern __inline unsigned short li_pcib_read16(unsigned long reg)
+{
+ return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
+}
+
+#endif
+
diff --git a/include/asm-i386/mach-visws/mach_apic.h b/include/asm-i386/mach-visws/mach_apic.h
new file mode 100644
index 00000000000..4e6cdfb8b09
--- /dev/null
+++ b/include/asm-i386/mach-visws/mach_apic.h
@@ -0,0 +1,100 @@
+#ifndef __ASM_MACH_APIC_H
+#define __ASM_MACH_APIC_H
+
+#include <mach_apicdef.h>
+#include <asm/smp.h>
+
+#define APIC_DFR_VALUE (APIC_DFR_FLAT)
+
+#define no_balance_irq (0)
+#define esr_disable (0)
+
+#define NO_IOAPIC_CHECK (0)
+
+#define INT_DELIVERY_MODE dest_LowestPrio
+#define INT_DEST_MODE 1 /* logical delivery broadcast to all procs */
+
+#ifdef CONFIG_SMP
+ #define TARGET_CPUS cpu_online_map
+#else
+ #define TARGET_CPUS cpumask_of_cpu(0)
+#endif
+
+#define check_apicid_used(bitmap, apicid) physid_isset(apicid, bitmap)
+#define check_apicid_present(bit) physid_isset(bit, phys_cpu_present_map)
+
+static inline int apic_id_registered(void)
+{
+ return physid_isset(GET_APIC_ID(apic_read(APIC_ID)), phys_cpu_present_map);
+}
+
+/*
+ * Set up the logical destination ID.
+ *
+ * Intel recommends to set DFR, LDR and TPR before enabling
+ * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
+ * document number 292116). So here it goes...
+ */
+static inline void init_apic_ldr(void)
+{
+ unsigned long val;
+
+ apic_write_around(APIC_DFR, APIC_DFR_VALUE);
+ val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
+ val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
+ apic_write_around(APIC_LDR, val);
+}
+
+static inline void summit_check(char *oem, char *productid)
+{
+}
+
+static inline void clustered_apic_check(void)
+{
+}
+
+/* Mapping from cpu number to logical apicid */
+static inline int cpu_to_logical_apicid(int cpu)
+{
+ return 1 << cpu;
+}
+
+static inline int cpu_present_to_apicid(int mps_cpu)
+{
+ if (mps_cpu < get_physical_broadcast())
+ return mps_cpu;
+ else
+ return BAD_APICID;
+}
+
+static inline physid_mask_t apicid_to_cpu_present(int apicid)
+{
+ return physid_mask_of_physid(apicid);
+}
+
+#define WAKE_SECONDARY_VIA_INIT
+
+static inline void setup_portio_remap(void)
+{
+}
+
+static inline void enable_apic_mode(void)
+{
+}
+
+static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
+{
+ return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
+}
+
+static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
+{
+ return cpus_addr(cpumask)[0];
+}
+
+static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
+{
+ return cpuid_apic >> index_msb;
+}
+
+#endif /* __ASM_MACH_APIC_H */
diff --git a/include/asm-i386/mach-visws/mach_apicdef.h b/include/asm-i386/mach-visws/mach_apicdef.h
new file mode 100644
index 00000000000..826cfa97d77
--- /dev/null
+++ b/include/asm-i386/mach-visws/mach_apicdef.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_MACH_APICDEF_H
+#define __ASM_MACH_APICDEF_H
+
+#define APIC_ID_MASK (0xF<<24)
+
+static inline unsigned get_apic_id(unsigned long x)
+{
+ return (((x)>>24)&0xF);
+}
+#define GET_APIC_ID(x) get_apic_id(x)
+
+#endif
diff --git a/include/asm-i386/mach-visws/piix4.h b/include/asm-i386/mach-visws/piix4.h
new file mode 100644
index 00000000000..83ea4f46e41
--- /dev/null
+++ b/include/asm-i386/mach-visws/piix4.h
@@ -0,0 +1,107 @@
+#ifndef __I386_SGI_PIIX_H
+#define __I386_SGI_PIIX_H
+
+/*
+ * PIIX4 as used on SGI Visual Workstations
+ */
+
+#define PIIX_PM_START 0x0F80
+
+#define SIO_GPIO_START 0x0FC0
+
+#define SIO_PM_START 0x0FC8
+
+#define PMBASE PIIX_PM_START
+#define GPIREG0 (PMBASE+0x30)
+#define GPIREG(x) (GPIREG0+((x)/8))
+#define GPIBIT(x) (1 << ((x)%8))
+
+#define PIIX_GPI_BD_ID1 18
+#define PIIX_GPI_BD_ID2 19
+#define PIIX_GPI_BD_ID3 20
+#define PIIX_GPI_BD_ID4 21
+#define PIIX_GPI_BD_REG GPIREG(PIIX_GPI_BD_ID1)
+#define PIIX_GPI_BD_MASK (GPIBIT(PIIX_GPI_BD_ID1) | \
+ GPIBIT(PIIX_GPI_BD_ID2) | \
+ GPIBIT(PIIX_GPI_BD_ID3) | \
+ GPIBIT(PIIX_GPI_BD_ID4) )
+
+#define PIIX_GPI_BD_SHIFT (PIIX_GPI_BD_ID1 % 8)
+
+#define SIO_INDEX 0x2e
+#define SIO_DATA 0x2f
+
+#define SIO_DEV_SEL 0x7
+#define SIO_DEV_ENB 0x30
+#define SIO_DEV_MSB 0x60
+#define SIO_DEV_LSB 0x61
+
+#define SIO_GP_DEV 0x7
+
+#define SIO_GP_BASE SIO_GPIO_START
+#define SIO_GP_MSB (SIO_GP_BASE>>8)
+#define SIO_GP_LSB (SIO_GP_BASE&0xff)
+
+#define SIO_GP_DATA1 (SIO_GP_BASE+0)
+
+#define SIO_PM_DEV 0x8
+
+#define SIO_PM_BASE SIO_PM_START
+#define SIO_PM_MSB (SIO_PM_BASE>>8)
+#define SIO_PM_LSB (SIO_PM_BASE&0xff)
+#define SIO_PM_INDEX (SIO_PM_BASE+0)
+#define SIO_PM_DATA (SIO_PM_BASE+1)
+
+#define SIO_PM_FER2 0x1
+
+#define SIO_PM_GP_EN 0x80
+
+
+
+/*
+ * This is the dev/reg where generating a config cycle will
+ * result in a PCI special cycle.
+ */
+#define SPECIAL_DEV 0xff
+#define SPECIAL_REG 0x00
+
+/*
+ * PIIX4 needs to see a special cycle with the following data
+ * to be convinced the processor has gone into the stop grant
+ * state. PIIX4 insists on seeing this before it will power
+ * down a system.
+ */
+#define PIIX_SPECIAL_STOP 0x00120002
+
+#define PIIX4_RESET_PORT 0xcf9
+#define PIIX4_RESET_VAL 0x6
+
+#define PMSTS_PORT 0xf80 // 2 bytes PM Status
+#define PMEN_PORT 0xf82 // 2 bytes PM Enable
+#define PMCNTRL_PORT 0xf84 // 2 bytes PM Control
+
+#define PM_SUSPEND_ENABLE 0x2000 // start sequence to suspend state
+
+/*
+ * PMSTS and PMEN I/O bit definitions.
+ * (Bits are the same in both registers)
+ */
+#define PM_STS_RSM (1<<15) // Resume Status
+#define PM_STS_PWRBTNOR (1<<11) // Power Button Override
+#define PM_STS_RTC (1<<10) // RTC status
+#define PM_STS_PWRBTN (1<<8) // Power Button Pressed?
+#define PM_STS_GBL (1<<5) // Global Status
+#define PM_STS_BM (1<<4) // Bus Master Status
+#define PM_STS_TMROF (1<<0) // Timer Overflow Status.
+
+/*
+ * Stop clock GPI register
+ */
+#define PIIX_GPIREG0 (0xf80 + 0x30)
+
+/*
+ * Stop clock GPI bit in GPIREG0
+ */
+#define PIIX_GPI_STPCLK 0x4 // STPCLK signal routed back in
+
+#endif
diff --git a/include/asm-i386/mach-visws/setup_arch_post.h b/include/asm-i386/mach-visws/setup_arch_post.h
new file mode 100644
index 00000000000..cdbd895a54b
--- /dev/null
+++ b/include/asm-i386/mach-visws/setup_arch_post.h
@@ -0,0 +1,49 @@
+/* Hook for machine specific memory setup.
+ *
+ * This is included late in kernel/setup.c so that it can make use of all of
+ * the static functions. */
+
+#define MB (1024 * 1024)
+
+unsigned long sgivwfb_mem_phys;
+unsigned long sgivwfb_mem_size;
+
+long long mem_size __initdata = 0;
+
+static char * __init machine_specific_memory_setup(void)
+{
+ long long gfx_mem_size = 8 * MB;
+
+ mem_size = ALT_MEM_K;
+
+ if (!mem_size) {
+ printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
+ mem_size = 128 * MB;
+ }
+
+ /*
+ * this hardcodes the graphics memory to 8 MB
+ * it really should be sized dynamically (or at least
+ * set as a boot param)
+ */
+ if (!sgivwfb_mem_size) {
+ printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n");
+ sgivwfb_mem_size = 8 * MB;
+ }
+
+ /*
+ * Trim to nearest MB
+ */
+ sgivwfb_mem_size &= ~((1 << 20) - 1);
+ sgivwfb_mem_phys = mem_size - gfx_mem_size;
+
+ add_memory_region(0, LOWMEMSIZE(), E820_RAM);
+ add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
+ add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
+
+ return "PROM";
+
+ /* Remove gcc warnings */
+ (void) sanitize_e820_map(NULL, NULL);
+ (void) copy_e820_map(NULL, 0);
+}
diff --git a/include/asm-i386/mach-visws/setup_arch_pre.h b/include/asm-i386/mach-visws/setup_arch_pre.h
new file mode 100644
index 00000000000..b92d6d9a4d3
--- /dev/null
+++ b/include/asm-i386/mach-visws/setup_arch_pre.h
@@ -0,0 +1,5 @@
+/* Hook to call BIOS initialisation function */
+
+/* no action for visws */
+
+#define ARCH_SETUP
diff --git a/include/asm-i386/mach-visws/smpboot_hooks.h b/include/asm-i386/mach-visws/smpboot_hooks.h
new file mode 100644
index 00000000000..d926471fa35
--- /dev/null
+++ b/include/asm-i386/mach-visws/smpboot_hooks.h
@@ -0,0 +1,24 @@
+static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
+{
+ CMOS_WRITE(0xa, 0xf);
+ local_flush_tlb();
+ Dprintk("1.\n");
+ *((volatile unsigned short *) TRAMPOLINE_HIGH) = start_eip >> 4;
+ Dprintk("2.\n");
+ *((volatile unsigned short *) TRAMPOLINE_LOW) = start_eip & 0xf;
+ Dprintk("3.\n");
+}
+
+/* for visws do nothing for any of these */
+
+static inline void smpboot_clear_io_apic_irqs(void)
+{
+}
+
+static inline void smpboot_restore_warm_reset_vector(void)
+{
+}
+
+static inline void smpboot_setup_io_apic(void)
+{
+}