diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2019-05-15 15:36:46 -0700 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2019-07-01 11:02:22 -0700 |
| commit | a4880801a72ecc2dcdfa432f81a754f3e7438567 (patch) | |
| tree | 09598d292ca0afc987c785919f26354591d19761 /arch/arc/kernel | |
| parent | ab854bfcd310b5872fe12eb8d3f2c30fe427f8f7 (diff) | |
| download | linux-a4880801a72ecc2dcdfa432f81a754f3e7438567.tar.bz2 | |
ARCv2: entry: rewrite to enable use of double load/stores LDD/STD
- the motivation was to be remove blatent copy-paste due to hasty support
of CONFIG_ARC_IRQ_NO_AUTOSAVE support
- but with refactoring we could use LDD/STD to greatly optimize the code
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel')
| -rw-r--r-- | arch/arc/kernel/asm-offsets.c | 7 | ||||
| -rw-r--r-- | arch/arc/kernel/entry-arcv2.S | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/arc/kernel/asm-offsets.c b/arch/arc/kernel/asm-offsets.c index dba116535005..1f621e416521 100644 --- a/arch/arc/kernel/asm-offsets.c +++ b/arch/arc/kernel/asm-offsets.c @@ -55,7 +55,14 @@ int main(void) DEFINE(PT_r5, offsetof(struct pt_regs, r5)); DEFINE(PT_r6, offsetof(struct pt_regs, r6)); DEFINE(PT_r7, offsetof(struct pt_regs, r7)); + DEFINE(PT_r8, offsetof(struct pt_regs, r8)); + DEFINE(PT_r10, offsetof(struct pt_regs, r10)); + DEFINE(PT_r26, offsetof(struct pt_regs, r26)); DEFINE(PT_ret, offsetof(struct pt_regs, ret)); + DEFINE(PT_blink, offsetof(struct pt_regs, blink)); + DEFINE(PT_lpe, offsetof(struct pt_regs, lp_end)); + DEFINE(PT_lpc, offsetof(struct pt_regs, lp_count)); + DEFINE(PT_user_r25, offsetof(struct pt_regs, user_r25)); DEFINE(SZ_CALLEE_REGS, sizeof(struct callee_regs)); DEFINE(SZ_PT_REGS, sizeof(struct pt_regs)); diff --git a/arch/arc/kernel/entry-arcv2.S b/arch/arc/kernel/entry-arcv2.S index 14254b866fdc..0fc408ec0814 100644 --- a/arch/arc/kernel/entry-arcv2.S +++ b/arch/arc/kernel/entry-arcv2.S @@ -67,7 +67,7 @@ reserved: ENTRY(handle_interrupt) - INTERRUPT_PROLOGUE irq + INTERRUPT_PROLOGUE # irq control APIs local_irq_save/restore/disable/enable fiddle with # global interrupt enable bits in STATUS32 (.IE for 1 prio, .E[] for 2 prio) @@ -223,7 +223,7 @@ debug_marker_l1: bset.nz r11, r11, AUX_IRQ_ACT_BIT_U ; NZ means U sr r11, [AUX_IRQ_ACT] - INTERRUPT_EPILOGUE irq + INTERRUPT_EPILOGUE rtie ;####### Return from Exception / pure kernel mode ####### |