Commit b463b6f6 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'mips_fixes_5.9_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - fixed FP register access on Loongsoon-3

 - added missing 1074 cpu handling

 - fixed Loongson2ef build error

* tag 'mips_fixes_5.9_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: BCM47XX: Remove the needless check with the 1074K
  MIPS: Add the missing 'CPU_1074K' into __get_cpu_type()
  MIPS: Loongson2ef: Disable Loongson MMI instructions
  MIPS: Loongson-3: Fix fp register access if MSA enabled
parents 782d1222 be090fa6
......@@ -148,7 +148,7 @@ void __init plat_mem_setup(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
if ((c->cputype == CPU_74K) || (c->cputype == CPU_1074K)) {
if (c->cputype == CPU_74K) {
pr_info("Using bcma bus\n");
#ifdef CONFIG_BCM47XX_BCMA
bcm47xx_bus_type = BCM47XX_BUS_TYPE_BCMA;
......
......@@ -47,6 +47,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
case CPU_34K:
case CPU_1004K:
case CPU_74K:
case CPU_1074K:
case CPU_M14KC:
case CPU_M14KEC:
case CPU_INTERAPTIV:
......
......@@ -44,6 +44,10 @@ ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS
endif
endif
# Some -march= flags enable MMI instructions, and GCC complains about that
# support being enabled alongside -msoft-float. Thus explicitly disable MMI.
cflags-y += $(call cc-option,-mno-loongson-mmi)
#
# Loongson Machines' Support
#
......
......@@ -95,10 +95,8 @@ static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
if (res)
goto fault;
set_fpr64(current->thread.fpu.fpr,
insn.loongson3_lswc2_format.rt, value);
set_fpr64(current->thread.fpu.fpr,
insn.loongson3_lswc2_format.rq, value_next);
set_fpr64(&current->thread.fpu.fpr[insn.loongson3_lswc2_format.rt], 0, value);
set_fpr64(&current->thread.fpu.fpr[insn.loongson3_lswc2_format.rq], 0, value_next);
compute_return_epc(regs);
own_fpu(1);
}
......@@ -130,15 +128,13 @@ static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
goto sigbus;
lose_fpu(1);
value_next = get_fpr64(current->thread.fpu.fpr,
insn.loongson3_lswc2_format.rq);
value_next = get_fpr64(&current->thread.fpu.fpr[insn.loongson3_lswc2_format.rq], 0);
StoreDW(addr + 8, value_next, res);
if (res)
goto fault;
value = get_fpr64(current->thread.fpu.fpr,
insn.loongson3_lswc2_format.rt);
value = get_fpr64(&current->thread.fpu.fpr[insn.loongson3_lswc2_format.rt], 0);
StoreDW(addr, value, res);
if (res)
......@@ -204,8 +200,7 @@ static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
if (res)
goto fault;
set_fpr64(current->thread.fpu.fpr,
insn.loongson3_lsdc2_format.rt, value);
set_fpr64(&current->thread.fpu.fpr[insn.loongson3_lsdc2_format.rt], 0, value);
compute_return_epc(regs);
own_fpu(1);
......@@ -221,8 +216,7 @@ static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
if (res)
goto fault;
set_fpr64(current->thread.fpu.fpr,
insn.loongson3_lsdc2_format.rt, value);
set_fpr64(&current->thread.fpu.fpr[insn.loongson3_lsdc2_format.rt], 0, value);
compute_return_epc(regs);
own_fpu(1);
break;
......@@ -286,8 +280,7 @@ static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
goto sigbus;
lose_fpu(1);
value = get_fpr64(current->thread.fpu.fpr,
insn.loongson3_lsdc2_format.rt);
value = get_fpr64(&current->thread.fpu.fpr[insn.loongson3_lsdc2_format.rt], 0);
StoreW(addr, value, res);
if (res)
......@@ -305,8 +298,7 @@ static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
goto sigbus;
lose_fpu(1);
value = get_fpr64(current->thread.fpu.fpr,
insn.loongson3_lsdc2_format.rt);
value = get_fpr64(&current->thread.fpu.fpr[insn.loongson3_lsdc2_format.rt], 0);
StoreDW(addr, value, res);
if (res)
......
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