#include <asm/smp.h>
#include <asm/war.h>
-static __init int __attribute__((unused)) r45k_bvahwbug(void)
+static __init int __maybe_unused r45k_bvahwbug(void)
{
/* XXX: We should probe for the presence of this bug, but we don't. */
return 0;
}
-static __init int __attribute__((unused)) r4k_250MHZhwbug(void)
+static __init int __maybe_unused r4k_250MHZhwbug(void)
{
/* XXX: We should probe for the presence of this bug, but we don't. */
return 0;
}
-static __init int __attribute__((unused)) bcm1250_m3_war(void)
+static __init int __maybe_unused bcm1250_m3_war(void)
{
return BCM1250_M3_WAR;
}
-static __init int __attribute__((unused)) r10000_llsc_war(void)
+static __init int __maybe_unused r10000_llsc_war(void)
{
return R10000_LLSC_WAR;
}
label_invalid,
label_second_part,
label_leave,
+#ifdef MODULE_START
+ label_module_alloc,
+#endif
label_vmalloc,
label_vmalloc_done,
label_tlbw_hazard,
L_LA(_second_part)
L_LA(_leave)
+#ifdef MODULE_START
+L_LA(_module_alloc)
+#endif
L_LA(_vmalloc)
L_LA(_vmalloc_done)
L_LA(_tlbw_hazard)
#define i_ehb(buf) i_sll(buf, 0, 0, 3)
#ifdef CONFIG_64BIT
-static __init int __attribute__((unused)) in_compat_space_p(long addr)
+static __init int __maybe_unused in_compat_space_p(long addr)
{
/* Is this address in 32bit compat space? */
return (((addr) & 0xffffffff00000000L) == 0xffffffff00000000L);
}
-static __init int __attribute__((unused)) rel_highest(long val)
+static __init int __maybe_unused rel_highest(long val)
{
return ((((val + 0x800080008000L) >> 48) & 0xffff) ^ 0x8000) - 0x8000;
}
-static __init int __attribute__((unused)) rel_higher(long val)
+static __init int __maybe_unused rel_higher(long val)
{
return ((((val + 0x80008000L) >> 32) & 0xffff) ^ 0x8000) - 0x8000;
}
i_lui(buf, rs, rel_hi(addr));
}
-static __init void __attribute__((unused)) i_LA(u32 **buf, unsigned int rs,
- long addr)
+static __init void __maybe_unused i_LA(u32 **buf, unsigned int rs,
+ long addr)
{
i_LA_mostly(buf, rs, addr);
if (rel_lo(addr))
move_labels(lab, first, end, off);
}
-static __init int __attribute__((unused)) insn_has_bdelay(struct reloc *rel,
- u32 *addr)
+static __init int __maybe_unused insn_has_bdelay(struct reloc *rel,
+ u32 *addr)
{
for (; rel->lab != label_invalid; rel++) {
if (rel->addr == addr
}
/* convenience functions for labeled branches */
-static void __init __attribute__((unused))
+static void __init __maybe_unused
il_bltz(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
{
r_mips_pc16(r, *p, l);
i_bltz(p, reg, 0);
}
-static void __init __attribute__((unused)) il_b(u32 **p, struct reloc **r,
- enum label_id l)
+static void __init __maybe_unused il_b(u32 **p, struct reloc **r,
+ enum label_id l)
{
r_mips_pc16(r, *p, l);
i_b(p, 0);
i_beqz(p, reg, 0);
}
-static void __init __attribute__((unused))
+static void __init __maybe_unused
il_beqzl(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
{
r_mips_pc16(r, *p, l);
i_bgezl(p, reg, 0);
}
+static void __init __maybe_unused
+il_bgez(u32 **p, struct reloc **r, unsigned int reg, enum label_id l)
+{
+ r_mips_pc16(r, *p, l);
+ i_bgez(p, reg, 0);
+}
+
/* The only general purpose registers allowed in TLB handlers. */
#define K0 26
#define K1 27
*
* As if we MIPS hackers wouldn't know how to nop pipelines happy ...
*/
-static __init void __attribute__((unused)) build_tlb_probe_entry(u32 **p)
+static __init void __maybe_unused build_tlb_probe_entry(u32 **p)
{
switch (current_cpu_data.cputype) {
/* Found by experiment: R4600 v2.0 needs this, too. */
case CPU_4KSC:
case CPU_20KC:
case CPU_25KF:
+ case CPU_LOONGSON2:
tlbw(p);
break;
* The vmalloc handling is not in the hotpath.
*/
i_dmfc0(p, tmp, C0_BADVADDR);
+#ifdef MODULE_START
+ il_bltz(p, r, tmp, label_module_alloc);
+#else
il_bltz(p, r, tmp, label_vmalloc);
+#endif
/* No i_nop needed here, since the next insn doesn't touch TMP. */
#ifdef CONFIG_SMP
{
long swpd = (long)swapper_pg_dir;
+#ifdef MODULE_START
+ long modd = (long)module_pg_dir;
+
+ l_module_alloc(l, *p);
+ /*
+ * Assumption:
+ * VMALLOC_START >= 0xc000000000000000UL
+ * MODULE_START >= 0xe000000000000000UL
+ */
+ i_SLL(p, ptr, bvaddr, 2);
+ il_bgez(p, r, ptr, label_vmalloc);
+
+ if (in_compat_space_p(MODULE_START) && !rel_lo(MODULE_START)) {
+ i_lui(p, ptr, rel_hi(MODULE_START)); /* delay slot */
+ } else {
+ /* unlikely configuration */
+ i_nop(p); /* delay slot */
+ i_LA(p, ptr, MODULE_START);
+ }
+ i_dsubu(p, bvaddr, bvaddr, ptr);
+
+ if (in_compat_space_p(modd) && !rel_lo(modd)) {
+ il_b(p, r, label_vmalloc_done);
+ i_lui(p, ptr, rel_hi(modd));
+ } else {
+ i_LA_mostly(p, ptr, modd);
+ il_b(p, r, label_vmalloc_done);
+ i_daddiu(p, ptr, ptr, rel_lo(modd));
+ }
+
+ l_vmalloc(l, *p);
+ if (in_compat_space_p(MODULE_START) && !rel_lo(MODULE_START) &&
+ MODULE_START << 32 == VMALLOC_START)
+ i_dsll32(p, ptr, ptr, 0); /* typical case */
+ else
+ i_LA(p, ptr, VMALLOC_START);
+#else
l_vmalloc(l, *p);
i_LA(p, ptr, VMALLOC_START);
+#endif
i_dsubu(p, bvaddr, bvaddr, ptr);
if (in_compat_space_p(swpd) && !rel_lo(swpd)) {
* TMP and PTR are scratch.
* TMP will be clobbered, PTR will hold the pgd entry.
*/
-static __init void __attribute__((unused))
+static __init void __maybe_unused
build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
{
long pgdc = (long)pgd_current;
* need three, with the second nop'ed and the third being
* unused.
*/
-#ifdef CONFIG_32BIT
+ /* Loongson2 ebase is different than r4k, we have more space */
+#if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2)
if ((p - tlb_handler) > 64)
panic("TLB refill handler space exceeded");
#else
/*
* Now fold the handler in the TLB refill handler space.
*/
-#ifdef CONFIG_32BIT
+#if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2)
f = final_handler;
/* Simplest case, just copy the handler. */
copy_handler(relocs, labels, tlb_handler, p, f);
final_len);
f = final_handler;
-#ifdef CONFIG_64BIT
+#if defined(CONFIG_64BIT) && !defined(CONFIG_CPU_LOONGSON2)
if (final_len > 32)
final_len = 64;
else
git.openpandora.org / pandora-kernel.git / blobdiff