diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-10-28 13:10:32 +0100 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-11-05 18:20:42 +0100 |
| commit | a4c3733d32a72f11dee86d0731d7565aa6ebe22d (patch) | |
| tree | 45a8cdbf56325f37ad1b04c015aa8f9a5c646e9a /arch/riscv/mm | |
| parent | riscv: separate MMIO functions into their own header file (diff) | |
| download | linux-a4c3733d32a72f11dee86d0731d7565aa6ebe22d.tar.xz linux-a4c3733d32a72f11dee86d0731d7565aa6ebe22d.zip | |
riscv: abstract out CSR names for supervisor vs machine mode
Many of the privileged CSRs exist in a supervisor and machine version
that are used very similarly. Provide versions of the CSR names and
fields that map to either the S-mode or M-mode variant depending on
a new CONFIG_RISCV_M_MODE kconfig symbol.
Contains contributions from Damien Le Moal <Damien.LeMoal@wdc.com>
and Paul Walmsley <paul.walmsley@sifive.com>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de> # for drivers/clocksource, drivers/irqchip
[paul.walmsley@sifive.com: updated to apply]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv/mm')
| -rw-r--r-- | arch/riscv/mm/extable.c | 4 | ||||
| -rw-r--r-- | arch/riscv/mm/fault.c | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/riscv/mm/extable.c b/arch/riscv/mm/extable.c index 7aed9178d365..2fc729422151 100644 --- a/arch/riscv/mm/extable.c +++ b/arch/riscv/mm/extable.c @@ -15,9 +15,9 @@ int fixup_exception(struct pt_regs *regs) { const struct exception_table_entry *fixup; - fixup = search_exception_tables(regs->sepc); + fixup = search_exception_tables(regs->epc); if (fixup) { - regs->sepc = fixup->fixup; + regs->epc = fixup->fixup; return 1; } return 0; diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c index 247b8c859c44..cf7248e07f43 100644 --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@ -34,8 +34,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs) int code = SEGV_MAPERR; vm_fault_t fault; - cause = regs->scause; - addr = regs->sbadaddr; + cause = regs->cause; + addr = regs->badaddr; tsk = current; mm = tsk->mm; @@ -53,7 +53,7 @@ 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_SPIE)) + if (likely(regs->status & SR_PIE)) local_irq_enable(); /* |