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-rw-r--r--arch/mips/Makefile2
-rw-r--r--arch/mips/include/asm/elf.h4
-rw-r--r--arch/mips/include/asm/smp.h2
-rw-r--r--arch/mips/kernel/elf.c32
-rw-r--r--arch/mips/kernel/ptrace.c2
-rw-r--r--arch/mips/kernel/smp-cps.c2
-rw-r--r--arch/mips/kernel/smp.c6
-rw-r--r--arch/mips/kernel/traps.c1
-rw-r--r--arch/mips/kvm/emulate.c6
-rw-r--r--arch/mips/math-emu/cp1emu.c4
-rw-r--r--arch/mips/mm/tlb-r4k.c2
-rw-r--r--arch/mips/mti-malta/malta-init.c4
-rw-r--r--arch/mips/sgi-ip32/ip32-platform.c4
13 files changed, 34 insertions, 37 deletions
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 5200f649dd4e..ae2dd59050f7 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -277,7 +277,7 @@ LDFLAGS += -m $(ld-emul)
ifdef CONFIG_MIPS
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
- sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
+ sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
ifdef CONFIG_64BIT
CHECKFLAGS += -m64
endif
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index a594d8ed9698..f19e890b99d2 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -304,7 +304,7 @@ do { \
\
current->thread.abi = &mips_abi; \
\
- current->thread.fpu.fcr31 = current_cpu_data.fpu_csr31; \
+ current->thread.fpu.fcr31 = boot_cpu_data.fpu_csr31; \
} while (0)
#endif /* CONFIG_32BIT */
@@ -366,7 +366,7 @@ do { \
else \
current->thread.abi = &mips_abi; \
\
- current->thread.fpu.fcr31 = current_cpu_data.fpu_csr31; \
+ current->thread.fpu.fcr31 = boot_cpu_data.fpu_csr31; \
\
p = personality(current->personality); \
if (p != PER_LINUX32 && p != PER_LINUX) \
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index bb02fac9b4fa..2b25d1ba1ea0 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -45,7 +45,7 @@ extern int __cpu_logical_map[NR_CPUS];
#define SMP_DUMP 0x8
#define SMP_ASK_C0COUNT 0x10
-extern volatile cpumask_t cpu_callin_map;
+extern cpumask_t cpu_callin_map;
/* Mask of CPUs which are currently definitely operating coherently */
extern cpumask_t cpu_coherent_mask;
diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c
index be4899f3c393..4a4d9e067c89 100644
--- a/arch/mips/kernel/elf.c
+++ b/arch/mips/kernel/elf.c
@@ -76,14 +76,6 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
/* Lets see if this is an O32 ELF */
if (ehdr32->e_ident[EI_CLASS] == ELFCLASS32) {
- /* FR = 1 for N32 */
- if (ehdr32->e_flags & EF_MIPS_ABI2)
- state->overall_fp_mode = FP_FR1;
- else
- /* Set a good default FPU mode for O32 */
- state->overall_fp_mode = cpu_has_mips_r6 ?
- FP_FRE : FP_FR0;
-
if (ehdr32->e_flags & EF_MIPS_FP64) {
/*
* Set MIPS_ABI_FP_OLD_64 for EF_MIPS_FP64. We will override it
@@ -104,9 +96,6 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
(char *)&abiflags,
sizeof(abiflags));
} else {
- /* FR=1 is really the only option for 64-bit */
- state->overall_fp_mode = FP_FR1;
-
if (phdr64->p_type != PT_MIPS_ABIFLAGS)
return 0;
if (phdr64->p_filesz < sizeof(abiflags))
@@ -137,6 +126,7 @@ int arch_check_elf(void *_ehdr, bool has_interpreter,
struct elf32_hdr *ehdr = _ehdr;
struct mode_req prog_req, interp_req;
int fp_abi, interp_fp_abi, abi0, abi1, max_abi;
+ bool is_mips64;
if (!config_enabled(CONFIG_MIPS_O32_FP64_SUPPORT))
return 0;
@@ -152,10 +142,22 @@ int arch_check_elf(void *_ehdr, bool has_interpreter,
abi0 = abi1 = fp_abi;
}
- /* ABI limits. O32 = FP_64A, N32/N64 = FP_SOFT */
- max_abi = ((ehdr->e_ident[EI_CLASS] == ELFCLASS32) &&
- (!(ehdr->e_flags & EF_MIPS_ABI2))) ?
- MIPS_ABI_FP_64A : MIPS_ABI_FP_SOFT;
+ is_mips64 = (ehdr->e_ident[EI_CLASS] == ELFCLASS64) ||
+ (ehdr->e_flags & EF_MIPS_ABI2);
+
+ if (is_mips64) {
+ /* MIPS64 code always uses FR=1, thus the default is easy */
+ state->overall_fp_mode = FP_FR1;
+
+ /* Disallow access to the various FPXX & FP64 ABIs */
+ max_abi = MIPS_ABI_FP_SOFT;
+ } else {
+ /* Default to a mode capable of running code expecting FR=0 */
+ state->overall_fp_mode = cpu_has_mips_r6 ? FP_FRE : FP_FR0;
+
+ /* Allow all ABIs we know about */
+ max_abi = MIPS_ABI_FP_64A;
+ }
if ((abi0 > max_abi && abi0 != MIPS_ABI_FP_UNKNOWN) ||
(abi1 > max_abi && abi1 != MIPS_ABI_FP_UNKNOWN))
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index d544e774eea6..e933a309f2ea 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -176,7 +176,7 @@ int ptrace_setfpregs(struct task_struct *child, __u32 __user *data)
__get_user(value, data + 64);
fcr31 = child->thread.fpu.fcr31;
- mask = current_cpu_data.fpu_msk31;
+ mask = boot_cpu_data.fpu_msk31;
child->thread.fpu.fcr31 = (value & ~mask) | (fcr31 & mask);
/* FIR may not be written. */
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index 7e011f95bb8e..4251d390b5b6 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -92,7 +92,7 @@ static void __init cps_smp_setup(void)
#ifdef CONFIG_MIPS_MT_FPAFF
/* If we have an FPU, enroll ourselves in the FPU-full mask */
if (cpu_has_fpu)
- cpu_set(0, mt_fpu_cpumask);
+ cpumask_set_cpu(0, &mt_fpu_cpumask);
#endif /* CONFIG_MIPS_MT_FPAFF */
}
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 193ace7955fb..faa46ebd9dda 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -43,7 +43,7 @@
#include <asm/time.h>
#include <asm/setup.h>
-volatile cpumask_t cpu_callin_map; /* Bitmask of started secondaries */
+cpumask_t cpu_callin_map; /* Bitmask of started secondaries */
int __cpu_number_map[NR_CPUS]; /* Map physical to logical */
EXPORT_SYMBOL(__cpu_number_map);
@@ -218,8 +218,10 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
/*
* Trust is futile. We should really have timeouts ...
*/
- while (!cpumask_test_cpu(cpu, &cpu_callin_map))
+ while (!cpumask_test_cpu(cpu, &cpu_callin_map)) {
udelay(100);
+ schedule();
+ }
synchronise_count_master(cpu);
return 0;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index ba32e48d4697..d2d1c1933bc9 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -269,7 +269,6 @@ static void __show_regs(const struct pt_regs *regs)
*/
printk("epc : %0*lx %pS\n", field, regs->cp0_epc,
(void *) regs->cp0_epc);
- printk(" %s\n", print_tainted());
printk("ra : %0*lx %pS\n", field, regs->regs[31],
(void *) regs->regs[31]);
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c
index 6230f376a44e..4b50c5787e25 100644
--- a/arch/mips/kvm/emulate.c
+++ b/arch/mips/kvm/emulate.c
@@ -2389,7 +2389,6 @@ enum emulation_result kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu,
{
unsigned long *gpr = &vcpu->arch.gprs[vcpu->arch.io_gpr];
enum emulation_result er = EMULATE_DONE;
- unsigned long curr_pc;
if (run->mmio.len > sizeof(*gpr)) {
kvm_err("Bad MMIO length: %d", run->mmio.len);
@@ -2397,11 +2396,6 @@ enum emulation_result kvm_mips_complete_mmio_load(struct kvm_vcpu *vcpu,
goto done;
}
- /*
- * Update PC and hold onto current PC in case there is
- * an error and we want to rollback the PC
- */
- curr_pc = vcpu->arch.pc;
er = update_pc(vcpu, vcpu->arch.pending_load_cause);
if (er == EMULATE_FAIL)
return er;
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index d31c537ace1d..22b9b2cb9219 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -889,7 +889,7 @@ static inline void cop1_cfc(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
break;
case FPCREG_RID:
- value = current_cpu_data.fpu_id;
+ value = boot_cpu_data.fpu_id;
break;
default:
@@ -921,7 +921,7 @@ static inline void cop1_ctc(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
(void *)xcp->cp0_epc, MIPSInst_RT(ir), value);
/* Preserve read-only bits. */
- mask = current_cpu_data.fpu_msk31;
+ mask = boot_cpu_data.fpu_msk31;
fcr31 = (value & ~mask) | (fcr31 & mask);
break;
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index a27a088e6f9f..08318ecb803a 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -495,7 +495,7 @@ static void r4k_tlb_configure(void)
if (cpu_has_rixi) {
/*
- * Enable the no read, no exec bits, and enable large virtual
+ * Enable the no read, no exec bits, and enable large physical
* address.
*/
#ifdef CONFIG_64BIT
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 6849f533154f..cec3e187c48f 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -14,7 +14,7 @@
#include <linux/init.h>
#include <linux/string.h>
#include <linux/kernel.h>
-#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
#include <asm/cacheflush.h>
#include <asm/smp-ops.h>
@@ -75,7 +75,7 @@ static void __init console_config(void)
if ((strstr(fw_getcmdline(), "earlycon=")) == NULL) {
sprintf(console_string, "uart8250,io,0x3f8,%d%c%c", baud,
parity, bits);
- setup_early_serial8250_console(console_string);
+ setup_earlycon(console_string);
}
if ((strstr(fw_getcmdline(), "console=")) == NULL) {
diff --git a/arch/mips/sgi-ip32/ip32-platform.c b/arch/mips/sgi-ip32/ip32-platform.c
index 0134db2ad0a8..5a2a82148d8d 100644
--- a/arch/mips/sgi-ip32/ip32-platform.c
+++ b/arch/mips/sgi-ip32/ip32-platform.c
@@ -130,9 +130,9 @@ struct platform_device ip32_rtc_device = {
.resource = ip32_rtc_resources,
};
-+static int __init sgio2_rtc_devinit(void)
+static __init int sgio2_rtc_devinit(void)
{
return platform_device_register(&ip32_rtc_device);
}
-device_initcall(sgio2_cmos_devinit);
+device_initcall(sgio2_rtc_devinit);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.