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-rw-r--r--arch/mips/kernel/asm-offsets.c4
-rw-r--r--arch/mips/kernel/cpu-bugs64.c8
-rw-r--r--arch/mips/kernel/cpu-probe.c15
-rw-r--r--arch/mips/kernel/entry.S2
-rw-r--r--arch/mips/kernel/gdb-low.S8
-rw-r--r--arch/mips/kernel/module.c6
-rw-r--r--arch/mips/kernel/proc.c2
-rw-r--r--arch/mips/kernel/scall64-o32.S2
-rw-r--r--arch/mips/kernel/setup.c18
-rw-r--r--arch/mips/kernel/signal-common.h30
-rw-r--r--arch/mips/kernel/smp.c5
-rw-r--r--arch/mips/kernel/syscall.c27
-rw-r--r--arch/mips/kernel/traps.c20
-rw-r--r--arch/mips/kernel/vmlinux.lds.S20
14 files changed, 73 insertions, 94 deletions
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 92b28b674d6f..0facfaf4e950 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -272,8 +272,8 @@ void output_sc_defines(void)
text("/* Linux sigcontext offsets. */");
offset("#define SC_REGS ", struct sigcontext, sc_regs);
offset("#define SC_FPREGS ", struct sigcontext, sc_fpregs);
- offset("#define SC_MDHI ", struct sigcontext, sc_hi);
- offset("#define SC_MDLO ", struct sigcontext, sc_lo);
+ offset("#define SC_MDHI ", struct sigcontext, sc_mdhi);
+ offset("#define SC_MDLO ", struct sigcontext, sc_mdlo);
offset("#define SC_PC ", struct sigcontext, sc_pc);
offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr);
linefeed;
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index 47a087b6c11b..d268827c62bd 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -206,7 +206,7 @@ static inline void check_daddi(void)
"daddi %0, %1, %3\n\t"
".set pop"
: "=r" (v), "=&r" (tmp)
- : "I" (0xffffffffffffdb9a), "I" (0x1234));
+ : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
set_except_vector(12, handler);
local_irq_restore(flags);
@@ -224,7 +224,7 @@ static inline void check_daddi(void)
"dsrl %1, %1, 1\n\t"
"daddi %0, %1, %3"
: "=r" (v), "=&r" (tmp)
- : "I" (0xffffffffffffdb9a), "I" (0x1234));
+ : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
set_except_vector(12, handler);
local_irq_restore(flags);
@@ -280,7 +280,7 @@ static inline void check_daddiu(void)
"daddu %1, %2\n\t"
".set pop"
: "=&r" (v), "=&r" (w), "=&r" (tmp)
- : "I" (0xffffffffffffdb9a), "I" (0x1234));
+ : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
if (v == w) {
printk("no.\n");
@@ -296,7 +296,7 @@ static inline void check_daddiu(void)
"addiu %1, $0, %4\n\t"
"daddu %1, %2"
: "=&r" (v), "=&r" (w), "=&r" (tmp)
- : "I" (0xffffffffffffdb9a), "I" (0x1234));
+ : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
if (v == w) {
printk("yes.\n");
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 58b3b14873cb..8c2c359a05f4 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -121,6 +121,7 @@ static inline void check_wait(void)
case CPU_24K:
case CPU_25KF:
case CPU_34K:
+ case CPU_74K:
case CPU_PR4450:
cpu_wait = r4k_wait;
printk(" available.\n");
@@ -432,6 +433,15 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
MIPS_CPU_LLSC;
c->tlbsize = 64;
break;
+ case PRID_IMP_R14000:
+ c->cputype = CPU_R14000;
+ c->isa_level = MIPS_CPU_ISA_IV;
+ c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
+ MIPS_CPU_FPU | MIPS_CPU_32FPR |
+ MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
+ MIPS_CPU_LLSC;
+ c->tlbsize = 64;
+ break;
}
}
@@ -593,6 +603,9 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c)
case PRID_IMP_34K:
c->cputype = CPU_34K;
break;
+ case PRID_IMP_74K:
+ c->cputype = CPU_74K;
+ break;
}
}
@@ -642,7 +655,7 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
case PRID_IMP_SB1:
c->cputype = CPU_SB1;
/* FPU in pass1 is known to have issues. */
- if ((c->processor_id & 0xff) < 0x20)
+ if ((c->processor_id & 0xff) < 0x02)
c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR);
break;
case PRID_IMP_SB1A:
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index d101d2fb24ca..a9c6de1b9542 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -101,7 +101,7 @@ FEXPORT(restore_all) # restore full frame
EMT
1:
mfc0 v1, CP0_TCSTATUS
- /* We set IXMT above, XOR should cler it here */
+ /* We set IXMT above, XOR should clear it here */
xori v1, v1, TCSTATUS_IXMT
or v1, v0, v1
mtc0 v1, CP0_TCSTATUS
diff --git a/arch/mips/kernel/gdb-low.S b/arch/mips/kernel/gdb-low.S
index 10f28fb9f008..5fd7a8af0c62 100644
--- a/arch/mips/kernel/gdb-low.S
+++ b/arch/mips/kernel/gdb-low.S
@@ -54,9 +54,11 @@
*/
mfc0 k0, CP0_CAUSE
andi k0, k0, 0x7c
- add k1, k1, k0
- PTR_L k0, saved_vectors(k1)
- jr k0
+#ifdef CONFIG_64BIT
+ dsll k0, k0, 1
+#endif
+ PTR_L k1, saved_vectors(k0)
+ jr k1
nop
1:
move k0, sp
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index e54a7f442f8a..d7bf0215bc1d 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -288,6 +288,9 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
if (!sym->st_value) {
+ /* Ignore unresolved weak symbol */
+ if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
+ continue;
printk(KERN_WARNING "%s: Unknown symbol %s\n",
me->name, strtab + sym->st_name);
return -ENOENT;
@@ -325,6 +328,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+ ELF_MIPS_R_SYM(rel[i]);
if (!sym->st_value) {
+ /* Ignore unresolved weak symbol */
+ if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
+ continue;
printk(KERN_WARNING "%s: Unknown symbol %s\n",
me->name, strtab + sym->st_name);
return -ENOENT;
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 84ab959f924a..9def554f335b 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -42,6 +42,7 @@ static const char *cpu_name[] = {
[CPU_R8000] = "R8000",
[CPU_R10000] = "R10000",
[CPU_R12000] = "R12000",
+ [CPU_R14000] = "R14000",
[CPU_R4300] = "R4300",
[CPU_R4650] = "R4650",
[CPU_R4700] = "R4700",
@@ -74,6 +75,7 @@ static const char *cpu_name[] = {
[CPU_24K] = "MIPS 24K",
[CPU_25KF] = "MIPS 25Kf",
[CPU_34K] = "MIPS 34K",
+ [CPU_74K] = "MIPS 74K",
[CPU_VR4111] = "NEC VR4111",
[CPU_VR4121] = "NEC VR4121",
[CPU_VR4122] = "NEC VR4122",
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index b53a9207f530..8efb23a84131 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -209,7 +209,7 @@ sys_call_table:
PTR sys_fork
PTR sys_read
PTR sys_write
- PTR sys_open /* 4005 */
+ PTR compat_sys_open /* 4005 */
PTR sys_close
PTR sys_waitpid
PTR sys_creat
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index bcf1b10e518f..397a70e651b5 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -246,7 +246,7 @@ static inline int parse_rd_cmdline(unsigned long* rd_start, unsigned long* rd_en
#ifdef CONFIG_64BIT
/* HACK: Guess if the sign extension was forgotten */
if (start > 0x0000000080000000 && start < 0x00000000ffffffff)
- start |= 0xffffffff00000000;
+ start |= 0xffffffff00000000UL;
#endif
end = start + size;
@@ -355,8 +355,6 @@ static inline void bootmem_init(void)
}
#endif
- memory_present(0, first_usable_pfn, max_low_pfn);
-
/* Initialize the boot-time allocator with low memory only. */
bootmap_size = init_bootmem(first_usable_pfn, max_low_pfn);
@@ -410,6 +408,7 @@ static inline void bootmem_init(void)
/* Register lowmem ranges */
free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size));
+ memory_present(0, curr_pfn, curr_pfn + size - 1);
}
/* Reserve the bootmap memory. */
@@ -419,17 +418,20 @@ static inline void bootmem_init(void)
#ifdef CONFIG_BLK_DEV_INITRD
initrd_below_start_ok = 1;
if (initrd_start) {
- unsigned long initrd_size = ((unsigned char *)initrd_end) - ((unsigned char *)initrd_start);
+ unsigned long initrd_size = ((unsigned char *)initrd_end) -
+ ((unsigned char *)initrd_start);
+ const int width = sizeof(long) * 2;
+
printk("Initial ramdisk at: 0x%p (%lu bytes)\n",
(void *)initrd_start, initrd_size);
if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) {
printk("initrd extends beyond end of memory "
"(0x%0*Lx > 0x%0*Lx)\ndisabling initrd\n",
- sizeof(long) * 2,
- (unsigned long long)CPHYSADDR(initrd_end),
- sizeof(long) * 2,
- (unsigned long long)PFN_PHYS(max_low_pfn));
+ width,
+ (unsigned long long) CPHYSADDR(initrd_end),
+ width,
+ (unsigned long long) PFN_PHYS(max_low_pfn));
initrd_start = initrd_end = 0;
initrd_reserve_bootmem = 0;
}
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 3ca786215d48..ce6cb915c0a7 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -31,7 +31,6 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
save_gp_reg(31);
#undef save_gp_reg
-#ifdef CONFIG_32BIT
err |= __put_user(regs->hi, &sc->sc_mdhi);
err |= __put_user(regs->lo, &sc->sc_mdlo);
if (cpu_has_dsp) {
@@ -43,20 +42,6 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
err |= __put_user(mflo3(), &sc->sc_lo3);
err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
}
-#endif
-#ifdef CONFIG_64BIT
- err |= __put_user(regs->hi, &sc->sc_hi[0]);
- err |= __put_user(regs->lo, &sc->sc_lo[0]);
- if (cpu_has_dsp) {
- err |= __put_user(mfhi1(), &sc->sc_hi[1]);
- err |= __put_user(mflo1(), &sc->sc_lo[1]);
- err |= __put_user(mfhi2(), &sc->sc_hi[2]);
- err |= __put_user(mflo2(), &sc->sc_lo[2]);
- err |= __put_user(mfhi3(), &sc->sc_hi[3]);
- err |= __put_user(mflo3(), &sc->sc_lo[3]);
- err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
- }
-#endif
err |= __put_user(!!used_math(), &sc->sc_used_math);
@@ -92,7 +77,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
current_thread_info()->restart_block.fn = do_no_restart_syscall;
err |= __get_user(regs->cp0_epc, &sc->sc_pc);
-#ifdef CONFIG_32BIT
err |= __get_user(regs->hi, &sc->sc_mdhi);
err |= __get_user(regs->lo, &sc->sc_mdlo);
if (cpu_has_dsp) {
@@ -104,20 +88,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
}
-#endif
-#ifdef CONFIG_64BIT
- err |= __get_user(regs->hi, &sc->sc_hi[0]);
- err |= __get_user(regs->lo, &sc->sc_lo[0]);
- if (cpu_has_dsp) {
- err |= __get_user(treg, &sc->sc_hi[1]); mthi1(treg);
- err |= __get_user(treg, &sc->sc_lo[1]); mthi1(treg);
- err |= __get_user(treg, &sc->sc_hi[2]); mthi2(treg);
- err |= __get_user(treg, &sc->sc_lo[2]); mthi2(treg);
- err |= __get_user(treg, &sc->sc_hi[3]); mthi3(treg);
- err |= __get_user(treg, &sc->sc_lo[3]); mthi3(treg);
- err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
- }
-#endif
#define restore_gp_reg(i) do { \
err |= __get_user(regs->regs[i], &sc->sc_regs[i]); \
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index d42f358754ad..298f82fe8440 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -247,6 +247,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
current_thread_info()->cpu = 0;
smp_tune_scheduling();
plat_prepare_cpus(max_cpus);
+#ifndef CONFIG_HOTPLUG_CPU
+ cpu_present_map = cpu_possible_map;
+#endif
}
/* preload SMP state for boot cpu */
@@ -442,7 +445,7 @@ static int __init topology_init(void)
int cpu;
int ret;
- for_each_cpu(cpu) {
+ for_each_present_cpu(cpu) {
ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 2aeaa2fd4b32..5e8a18a8e2bd 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -276,31 +276,9 @@ void sys_set_thread_area(unsigned long addr)
asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
{
- int tmp, len;
- char __user *name;
+ int tmp;
switch(cmd) {
- case SETNAME: {
- char nodename[__NEW_UTS_LEN + 1];
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- name = (char __user *) arg1;
-
- len = strncpy_from_user(nodename, name, __NEW_UTS_LEN);
- if (len < 0)
- return -EFAULT;
-
- down_write(&uts_sem);
- strncpy(system_utsname.nodename, nodename, len);
- nodename[__NEW_UTS_LEN] = '\0';
- strlcpy(system_utsname.nodename, nodename,
- sizeof(system_utsname.nodename));
- up_write(&uts_sem);
- return 0;
- }
-
case MIPS_ATOMIC_SET:
printk(KERN_CRIT "How did I get here?\n");
return -EINVAL;
@@ -313,9 +291,6 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
case FLUSH_CACHE:
__flush_cache_all();
return 0;
-
- case MIPS_RDNVRAM:
- return -EIO;
}
return -EINVAL;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 4901f0a37fca..a7564b08eb4d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -819,15 +819,30 @@ asmlinkage void do_watch(struct pt_regs *regs)
asmlinkage void do_mcheck(struct pt_regs *regs)
{
+ const int field = 2 * sizeof(unsigned long);
+ int multi_match = regs->cp0_status & ST0_TS;
+
show_regs(regs);
- dump_tlb_all();
+
+ if (multi_match) {
+ printk("Index : %0x\n", read_c0_index());
+ printk("Pagemask: %0x\n", read_c0_pagemask());
+ printk("EntryHi : %0*lx\n", field, read_c0_entryhi());
+ printk("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
+ printk("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
+ printk("\n");
+ dump_tlb_all();
+ }
+
+ show_code((unsigned int *) regs->cp0_epc);
+
/*
* Some chips may have other causes of machine check (e.g. SB1
* graduation timer)
*/
panic("Caught Machine Check exception - %scaused by multiple "
"matching entries in the TLB.",
- (regs->cp0_status & ST0_TS) ? "" : "not ");
+ (multi_match) ? "" : "not ");
}
asmlinkage void do_mt(struct pt_regs *regs)
@@ -902,6 +917,7 @@ static inline void parity_protection_init(void)
{
switch (current_cpu_data.cputype) {
case CPU_24K:
+ case CPU_34K:
case CPU_5KC:
write_c0_ecc(0x80000000);
back_to_back_c0_hazard();
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 14fa00e3cdfa..b84d1f9ce28e 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -151,23 +151,13 @@ SECTIONS
/* This is the MIPS specific mdebug section. */
.mdebug : { *(.mdebug) }
- /* These are needed for ELF backends which have not yet been
- converted to the new style linker. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- /* DWARF debug sections.
- Symbols in the .debug DWARF section are relative to the beginning of the
- section so we begin .debug at 0. It's not clear yet what needs to happen
- for the others. */
- .debug 0 : { *(.debug) }
- .debug_srcinfo 0 : { *(.debug_srcinfo) }
- .debug_aranges 0 : { *(.debug_aranges) }
- .debug_pubnames 0 : { *(.debug_pubnames) }
- .debug_sfnames 0 : { *(.debug_sfnames) }
- .line 0 : { *(.line) }
+
+ STABS_DEBUG
+
+ DWARF_DEBUG
+
/* These must appear regardless of . */
.gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
.gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
- .comment : { *(.comment) }
.note : { *(.note) }
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.