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riscv: rename SR_* constants to match the spec

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Christoph Hellwig 2018-01-04 18:35:03 +01:00 committed by Palmer Dabbelt
parent c163fb38ca
commit 1125203c13
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GPG Key ID: EF4CA1502CCBAB41
6 changed files with 17 additions and 17 deletions
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8
arch/riscv/include/asm/csr.h
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@ -17,10 +17,10 @@
#include <linux/const.h>
/* Status register flags */
#define SR_IE _AC(0x00000002, UL) /* Interrupt Enable */
#define SR_PIE _AC(0x00000020, UL) /* Previous IE */
#define SR_PS _AC(0x00000100, UL) /* Previously Supervisor */
#define SR_SUM _AC(0x00040000, UL) /* Supervisor may access User Memory */
#define SR_SIE _AC(0x00000002, UL) /* Supervisor Interrupt Enable */
#define SR_SPIE _AC(0x00000020, UL) /* Previous Supervisor IE */
#define SR_SPP _AC(0x00000100, UL) /* Previously Supervisor */
#define SR_SUM _AC(0x00040000, UL) /* Supervisor may access User Memory */
#define SR_FS _AC(0x00006000, UL) /* Floating-point Status */
#define SR_FS_OFF _AC(0x00000000, UL)

10
arch/riscv/include/asm/irqflags.h
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@ -27,25 +27,25 @@ static inline unsigned long arch_local_save_flags(void)
/* unconditionally enable interrupts */
static inline void arch_local_irq_enable(void)
{
csr_set(sstatus, SR_IE);
csr_set(sstatus, SR_SIE);
}
/* unconditionally disable interrupts */
static inline void arch_local_irq_disable(void)
{
csr_clear(sstatus, SR_IE);
csr_clear(sstatus, SR_SIE);
}
/* get status and disable interrupts */
static inline unsigned long arch_local_irq_save(void)
{
return csr_read_clear(sstatus, SR_IE);
return csr_read_clear(sstatus, SR_SIE);
}
/* test flags */
static inline int arch_irqs_disabled_flags(unsigned long flags)
{
return !(flags & SR_IE);
return !(flags & SR_SIE);
}
/* test hardware interrupt enable bit */
@ -57,7 +57,7 @@ static inline int arch_irqs_disabled(void)
/* set interrupt enabled status */
static inline void arch_local_irq_restore(unsigned long flags)
{
csr_set(sstatus, flags & SR_IE);
csr_set(sstatus, flags & SR_SIE);
}
#endif /* _ASM_RISCV_IRQFLAGS_H */

2
arch/riscv/include/asm/ptrace.h
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@ -66,7 +66,7 @@ struct pt_regs {
#define REG_FMT "%08lx"
#endif
#define user_mode(regs) (((regs)->sstatus & SR_PS) == 0)
#define user_mode(regs) (((regs)->sstatus & SR_SPP) == 0)
/* Helpers for working with the instruction pointer */

8
arch/riscv/kernel/entry.S
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@ -196,7 +196,7 @@ handle_syscall:
addi s2, s2, 0x4
REG_S s2, PT_SEPC(sp)
/* System calls run with interrupts enabled */
csrs sstatus, SR_IE
csrs sstatus, SR_SIE
/* Trace syscalls, but only if requested by the user. */
REG_L t0, TASK_TI_FLAGS(tp)
andi t0, t0, _TIF_SYSCALL_TRACE
@ -224,8 +224,8 @@ ret_from_syscall:
ret_from_exception:
REG_L s0, PT_SSTATUS(sp)
csrc sstatus, SR_IE
andi s0, s0, SR_PS
csrc sstatus, SR_SIE
andi s0, s0, SR_SPP
bnez s0, restore_all
resume_userspace:
@ -255,7 +255,7 @@ work_pending:
bnez s1, work_resched
work_notifysig:
/* Handle pending signals and notify-resume requests */
csrs sstatus, SR_IE /* Enable interrupts for do_notify_resume() */
csrs sstatus, SR_SIE /* Enable interrupts for do_notify_resume() */
move a0, sp /* pt_regs */
move a1, s0 /* current_thread_info->flags */
tail do_notify_resume

4
arch/riscv/kernel/process.c
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@ -76,7 +76,7 @@ void show_regs(struct pt_regs *regs)
void start_thread(struct pt_regs *regs, unsigned long pc,
unsigned long sp)
{
regs->sstatus = SR_PIE /* User mode, irqs on */ | SR_FS_INITIAL;
regs->sstatus = SR_SPIE /* User mode, irqs on */ | SR_FS_INITIAL;
regs->sepc = pc;
regs->sp = sp;
set_fs(USER_DS);
@ -110,7 +110,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
const register unsigned long gp __asm__ ("gp");
memset(childregs, 0, sizeof(struct pt_regs));
childregs->gp = gp;
childregs->sstatus = SR_PS | SR_PIE; /* Supervisor, irqs on */
childregs->sstatus = SR_SPP | SR_SPIE; /* Supervisor, irqs on */
p->thread.ra = (unsigned long)ret_from_kernel_thread;
p->thread.s[0] = usp; /* fn */

2
arch/riscv/mm/fault.c
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@ -63,7 +63,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs)
goto vmalloc_fault;
/* Enable interrupts if they were enabled in the parent context. */
if (likely(regs->sstatus & SR_PIE))
if (likely(regs->sstatus & SR_SPIE))
local_irq_enable();
/*