Linux-2.6.12-rc2v2.6.12-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!

5 files changed, 213 insertions, 0 deletions

diff --git a/include/asm-i386/mach-voyager/do_timer.h b/include/asm-i386/mach-voyager/do_timer.h
new file mode 100644
index 000000000000..ae510e5d0d78
--- /dev/null
+++ b/include/asm-i386/mach-voyager/do_timer.h
@@ -0,0 +1,25 @@
+/* defines for inline arch setup functions */
+#include <asm/voyager.h>
+
+static inline void do_timer_interrupt_hook(struct pt_regs *regs)
+{
+        do_timer(regs);
+#ifndef CONFIG_SMP
+        update_process_times(user_mode(regs));
+#endif
+
+        voyager_timer_interrupt(regs);
+}
+
+static inline int do_timer_overflow(int count)
+{
+        /* can't read the ISR, just assume 1 tick
+           overflow */
+        if(count > LATCH || count < 0) {
+                printk(KERN_ERR "VOYAGER PROBLEM: count is %d, latch is %d\n", count, LATCH);
+                count = LATCH;
+        }
+        count -= LATCH;
+
+        return count;
+}
diff --git a/include/asm-i386/mach-voyager/entry_arch.h b/include/asm-i386/mach-voyager/entry_arch.h
new file mode 100644
index 000000000000..4a1e1e8c10b6
--- /dev/null
+++ b/include/asm-i386/mach-voyager/entry_arch.h
@@ -0,0 +1,26 @@
+/* -*- mode: c; c-basic-offset: 8 -*- */
+
+/* Copyright (C) 2002
+ *
+ * Author: James.Bottomley@HansenPartnership.com
+ *
+ * linux/arch/i386/voyager/entry_arch.h
+ *
+ * This file builds the VIC and QIC CPI gates
+ */
+
+/* initialise the voyager interrupt gates 
+ *
+ * This uses the macros in irq.h to set up assembly jump gates.  The
+ * calls are then redirected to the same routine with smp_ prefixed */
+BUILD_INTERRUPT(vic_sys_interrupt, VIC_SYS_INT)
+BUILD_INTERRUPT(vic_cmn_interrupt, VIC_CMN_INT)
+BUILD_INTERRUPT(vic_cpi_interrupt, VIC_CPI_LEVEL0);
+
+/* do all the QIC interrupts */
+BUILD_INTERRUPT(qic_timer_interrupt, QIC_TIMER_CPI);
+BUILD_INTERRUPT(qic_invalidate_interrupt, QIC_INVALIDATE_CPI);
+BUILD_INTERRUPT(qic_reschedule_interrupt, QIC_RESCHEDULE_CPI);
+BUILD_INTERRUPT(qic_enable_irq_interrupt, QIC_ENABLE_IRQ_CPI);
+BUILD_INTERRUPT(qic_call_function_interrupt, QIC_CALL_FUNCTION_CPI);
+
diff --git a/include/asm-i386/mach-voyager/irq_vectors.h b/include/asm-i386/mach-voyager/irq_vectors.h
new file mode 100644
index 000000000000..165421f5821c
--- /dev/null
+++ b/include/asm-i386/mach-voyager/irq_vectors.h
@@ -0,0 +1,79 @@
+/* -*- mode: c; c-basic-offset: 8 -*- */
+
+/* Copyright (C) 2002
+ *
+ * Author: James.Bottomley@HansenPartnership.com
+ *
+ * linux/arch/i386/voyager/irq_vectors.h
+ *
+ * This file provides definitions for the VIC and QIC CPIs
+ */
+
+#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.
+ */
+
+/* These define the CPIs we use in linux */
+#define VIC_CPI_LEVEL0                  0
+#define VIC_CPI_LEVEL1                  1
+/* now the fake CPIs */
+#define VIC_TIMER_CPI                   2
+#define VIC_INVALIDATE_CPI              3
+#define VIC_RESCHEDULE_CPI              4
+#define VIC_ENABLE_IRQ_CPI              5
+#define VIC_CALL_FUNCTION_CPI           6
+
+/* Now the QIC CPIs:  Since we don't need the two initial levels,
+ * these are 2 less than the VIC CPIs */
+#define QIC_CPI_OFFSET                  1
+#define QIC_TIMER_CPI                   (VIC_TIMER_CPI - QIC_CPI_OFFSET)
+#define QIC_INVALIDATE_CPI              (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET)
+#define QIC_RESCHEDULE_CPI              (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET)
+#define QIC_ENABLE_IRQ_CPI              (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET)
+#define QIC_CALL_FUNCTION_CPI           (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET)
+
+#define VIC_START_FAKE_CPI              VIC_TIMER_CPI
+#define VIC_END_FAKE_CPI                VIC_CALL_FUNCTION_CPI
+
+/* this is the SYS_INT CPI. */
+#define VIC_SYS_INT                     8
+#define VIC_CMN_INT                     15
+
+/* This is the boot CPI for alternate processors.  It gets overwritten
+ * by the above once the system has activated all available processors */
+#define VIC_CPU_BOOT_CPI                VIC_CPI_LEVEL0
+#define VIC_CPU_BOOT_ERRATA_CPI         (VIC_CPI_LEVEL0 + 8)
+
+#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)
+
+#ifndef __ASSEMBLY__
+extern asmlinkage void vic_cpi_interrupt(void);
+extern asmlinkage void vic_sys_interrupt(void);
+extern asmlinkage void vic_cmn_interrupt(void);
+extern asmlinkage void qic_timer_interrupt(void);
+extern asmlinkage void qic_invalidate_interrupt(void);
+extern asmlinkage void qic_reschedule_interrupt(void);
+extern asmlinkage void qic_enable_irq_interrupt(void);
+extern asmlinkage void qic_call_function_interrupt(void);
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_IRQ_VECTORS_H */
diff --git a/include/asm-i386/mach-voyager/setup_arch_post.h b/include/asm-i386/mach-voyager/setup_arch_post.h
new file mode 100644
index 000000000000..f6f6c2cbc75c
--- /dev/null
+++ b/include/asm-i386/mach-voyager/setup_arch_post.h
@@ -0,0 +1,73 @@
+/* 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. */
+
+static char * __init machine_specific_memory_setup(void)
+{
+        char *who;
+
+        who = "NOT VOYAGER";
+
+        if(voyager_level == 5) {
+                __u32 addr, length;
+                int i;
+
+                who = "Voyager-SUS";
+
+                e820.nr_map = 0;
+                for(i=0; voyager_memory_detect(i, &addr, &length); i++) {
+                        add_memory_region(addr, length, E820_RAM);
+                }
+                return who;
+        } else if(voyager_level == 4) {
+                __u32 tom;
+                __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
+                /* select the DINO config space */
+                outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT);
+                /* Read DINO top of memory register */
+                tom = ((inb(catbase + 0x4) & 0xf0) << 16)
+                        + ((inb(catbase + 0x5) & 0x7f) << 24);
+
+                if(inb(catbase) != VOYAGER_DINO) {
+                        printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
+                        tom = (EXT_MEM_K)<<10;
+                }
+                who = "Voyager-TOM";
+                add_memory_region(0, 0x9f000, E820_RAM);
+                /* map from 1M to top of memory */
+                add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM);
+                /* FIXME: Should check the ASICs to see if I need to
+                 * take out the 8M window.  Just do it at the moment
+                 * */
+                add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED);
+                return who;
+        }
+
+        who = "BIOS-e820";
+
+        /*
+         * Try to copy the BIOS-supplied E820-map.
+         *
+         * Otherwise fake a memory map; one section from 0k->640k,
+         * the next section from 1mb->appropriate_mem_k
+         */
+        sanitize_e820_map(E820_MAP, &E820_MAP_NR);
+        if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
+                unsigned long mem_size;
+
+                /* compare results from other methods and take the greater */
+                if (ALT_MEM_K < EXT_MEM_K) {
+                        mem_size = EXT_MEM_K;
+                        who = "BIOS-88";
+                } else {
+                        mem_size = ALT_MEM_K;
+                        who = "BIOS-e801";
+                }
+
+                e820.nr_map = 0;
+                add_memory_region(0, LOWMEMSIZE(), E820_RAM);
+                add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
+        }
+        return who;
+}
diff --git a/include/asm-i386/mach-voyager/setup_arch_pre.h b/include/asm-i386/mach-voyager/setup_arch_pre.h
new file mode 100644
index 000000000000..48f7e6ff49a5
--- /dev/null
+++ b/include/asm-i386/mach-voyager/setup_arch_pre.h
@@ -0,0 +1,10 @@
+#include <asm/voyager.h>
+#define VOYAGER_BIOS_INFO ((struct voyager_bios_info *)(PARAM+0x40))
+
+/* Hook to call BIOS initialisation function */
+
+/* for voyager, pass the voyager BIOS/SUS info area to the detection 
+ * routines */
+
+#define ARCH_SETUP      voyager_detect(VOYAGER_BIOS_INFO);
+