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[Xen-changelog] [IA64] remove linux/patch.c



# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID d18f8fd07fa2bd3856147b446b567064b130e742
# Parent  263901a2a9950be9bc5a2f13a3fd102b0dcba51e
[IA64] remove linux/patch.c

Removed, was unused.

Signed-off-by: Tristan Gingold <tristan.gingold@xxxxxxxx>

diff -r 263901a2a995 -r d18f8fd07fa2 xen/arch/ia64/linux/patch.c
--- a/xen/arch/ia64/linux/patch.c       Tue Mar 21 16:13:07 2006
+++ /dev/null   Tue Mar 21 16:18:28 2006
@@ -1,189 +0,0 @@
-/*
- * Instruction-patching support.
- *
- * Copyright (C) 2003 Hewlett-Packard Co
- *     David Mosberger-Tang <davidm@xxxxxxxxxx>
- */
-#include <linux/init.h>
-#include <linux/string.h>
-
-#include <asm/patch.h>
-#include <asm/processor.h>
-#include <asm/sections.h>
-#include <asm/system.h>
-#include <asm/unistd.h>
-
-/*
- * This was adapted from code written by Tony Luck:
- *
- * The 64-bit value in a "movl reg=value" is scattered between the two words 
of the bundle
- * like this:
- *
- * 6  6         5         4         3         2         1
- * 3210987654321098765432109876543210987654321098765432109876543210
- * ABBBBBBBBBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCCCCDEEEEEFFFFFFFFFGGGGGGG
- *
- * CCCCCCCCCCCCCCCCCCxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
- * xxxxAFFFFFFFFFEEEEEDxGGGGGGGxxxxxxxxxxxxxBBBBBBBBBBBBBBBBBBBBBBB
- */
-static u64
-get_imm64 (u64 insn_addr)
-{
-       u64 *p = (u64 *) (insn_addr & -16);     /* mask out slot number */
-
-       return ( (p[1] & 0x0800000000000000UL) << 4)  | /*A*/
-               ((p[1] & 0x00000000007fffffUL) << 40) | /*B*/
-               ((p[0] & 0xffffc00000000000UL) >> 24) | /*C*/
-               ((p[1] & 0x0000100000000000UL) >> 23) | /*D*/
-               ((p[1] & 0x0003e00000000000UL) >> 29) | /*E*/
-               ((p[1] & 0x07fc000000000000UL) >> 43) | /*F*/
-               ((p[1] & 0x000007f000000000UL) >> 36);  /*G*/
-}
-
-/* Patch instruction with "val" where "mask" has 1 bits. */
-void
-ia64_patch (u64 insn_addr, u64 mask, u64 val)
-{
-       u64 m0, m1, v0, v1, b0, b1, *b = (u64 *) (insn_addr & -16);
-#      define insn_mask ((1UL << 41) - 1)
-       unsigned long shift;
-
-       b0 = b[0]; b1 = b[1];
-       shift = 5 + 41 * (insn_addr % 16); /* 5 bits of template, then 3 x 
41-bit instructions */
-       if (shift >= 64) {
-               m1 = mask << (shift - 64);
-               v1 = val << (shift - 64);
-       } else {
-               m0 = mask << shift; m1 = mask >> (64 - shift);
-               v0 = val  << shift; v1 = val >> (64 - shift);
-               b[0] = (b0 & ~m0) | (v0 & m0);
-       }
-       b[1] = (b1 & ~m1) | (v1 & m1);
-}
-
-void
-ia64_patch_imm64 (u64 insn_addr, u64 val)
-{
-       ia64_patch(insn_addr,
-                  0x01fffefe000UL, (  ((val & 0x8000000000000000UL) >> 27) /* 
bit 63 -> 36 */
-                                    | ((val & 0x0000000000200000UL) <<  0) /* 
bit 21 -> 21 */
-                                    | ((val & 0x00000000001f0000UL) <<  6) /* 
bit 16 -> 22 */
-                                    | ((val & 0x000000000000ff80UL) << 20) /* 
bit  7 -> 27 */
-                                    | ((val & 0x000000000000007fUL) << 13) /* 
bit  0 -> 13 */));
-       ia64_patch(insn_addr - 1, 0x1ffffffffffUL, val >> 22);
-}
-
-void
-ia64_patch_imm60 (u64 insn_addr, u64 val)
-{
-       ia64_patch(insn_addr,
-                  0x011ffffe000UL, (  ((val & 0x0800000000000000UL) >> 23) /* 
bit 59 -> 36 */
-                                    | ((val & 0x00000000000fffffUL) << 13) /* 
bit  0 -> 13 */));
-       ia64_patch(insn_addr - 1, 0x1fffffffffcUL, val >> 18);
-}
-
-/*
- * We need sometimes to load the physical address of a kernel
- * object.  Often we can convert the virtual address to physical
- * at execution time, but sometimes (either for performance reasons
- * or during error recovery) we cannot to this.  Patch the marked
- * bundles to load the physical address.
- */
-void __init
-ia64_patch_vtop (unsigned long start, unsigned long end)
-{
-       s32 *offp = (s32 *) start;
-       u64 ip;
-
-       while (offp < (s32 *) end) {
-               ip = (u64) offp + *offp;
-
-               /* replace virtual address with corresponding physical address: 
*/
-               ia64_patch_imm64(ip, ia64_tpa(get_imm64(ip)));
-               ia64_fc((void *) ip);
-               ++offp;
-       }
-       ia64_sync_i();
-       ia64_srlz_i();
-}
-
-void
-ia64_patch_mckinley_e9 (unsigned long start, unsigned long end)
-{
-       static int first_time = 1;
-       int need_workaround;
-       s32 *offp = (s32 *) start;
-       u64 *wp;
-
-       need_workaround = (local_cpu_data->family == 0x1f && 
local_cpu_data->model == 0);
-
-       if (first_time) {
-               first_time = 0;
-               if (need_workaround)
-                       printk(KERN_INFO "Leaving McKinley Errata 9 workaround 
enabled\n");
-               else
-                       printk(KERN_INFO "McKinley Errata 9 workaround not 
needed; "
-                              "disabling it\n");
-       }
-       if (need_workaround)
-               return;
-
-       while (offp < (s32 *) end) {
-               wp = (u64 *) ia64_imva((char *) offp + *offp);
-               wp[0] = 0x0000000100000000UL; /* nop.m 0; nop.i 0; nop.i 0 */
-               wp[1] = 0x0004000000000200UL;
-               wp[2] = 0x0000000100000011UL; /* nop.m 0; nop.i 0; 
br.ret.sptk.many b6 */
-               wp[3] = 0x0084006880000200UL;
-               ia64_fc(wp); ia64_fc(wp + 2);
-               ++offp;
-       }
-       ia64_sync_i();
-       ia64_srlz_i();
-}
-
-static void
-patch_fsyscall_table (unsigned long start, unsigned long end)
-{
-       extern unsigned long fsyscall_table[NR_syscalls];
-       s32 *offp = (s32 *) start;
-       u64 ip;
-
-       while (offp < (s32 *) end) {
-               ip = (u64) ia64_imva((char *) offp + *offp);
-               ia64_patch_imm64(ip, (u64) fsyscall_table);
-               ia64_fc((void *) ip);
-               ++offp;
-       }
-       ia64_sync_i();
-       ia64_srlz_i();
-}
-
-static void
-patch_brl_fsys_bubble_down (unsigned long start, unsigned long end)
-{
-       extern char fsys_bubble_down[];
-       s32 *offp = (s32 *) start;
-       u64 ip;
-
-       while (offp < (s32 *) end) {
-               ip = (u64) offp + *offp;
-               ia64_patch_imm60((u64) ia64_imva((void *) ip),
-                                (u64) (fsys_bubble_down - (ip & -16)) / 16);
-               ia64_fc((void *) ip);
-               ++offp;
-       }
-       ia64_sync_i();
-       ia64_srlz_i();
-}
-
-void
-ia64_patch_gate (void)
-{
-#      define START(name)      ((unsigned long) 
__start_gate_##name##_patchlist)
-#      define END(name)        ((unsigned long)__end_gate_##name##_patchlist)
-
-       patch_fsyscall_table(START(fsyscall), END(fsyscall));
-       patch_brl_fsys_bubble_down(START(brl_fsys_bubble_down), 
END(brl_fsys_bubble_down));
-       ia64_patch_vtop(START(vtop), END(vtop));
-       ia64_patch_mckinley_e9(START(mckinley_e9), END(mckinley_e9));
-}

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