alternative_else_nop_endif
1:
- scs_load tsk
+ scs_load_current
.else
add x21, sp, #PT_REGS_SIZE
get_current_task tsk
.endif
#ifdef CONFIG_ARM64_PSEUDO_NMI
- /* Save pmr */
-alternative_if ARM64_HAS_IRQ_PRIO_MASKING
+alternative_if_not ARM64_HAS_GIC_PRIO_MASKING
+ b .Lskip_pmr_save\@
+alternative_else_nop_endif
+
mrs_s x20, SYS_ICC_PMR_EL1
str x20, [sp, #S_PMR_SAVE]
mov x20, #GIC_PRIO_IRQON | GIC_PRIO_PSR_I_SET
msr_s SYS_ICC_PMR_EL1, x20
-alternative_else_nop_endif
+
+.Lskip_pmr_save\@:
#endif
/*
.endif
#ifdef CONFIG_ARM64_PSEUDO_NMI
- /* Restore pmr */
-alternative_if ARM64_HAS_IRQ_PRIO_MASKING
+alternative_if_not ARM64_HAS_GIC_PRIO_MASKING
+ b .Lskip_pmr_restore\@
+alternative_else_nop_endif
+
ldr x20, [sp, #S_PMR_SAVE]
msr_s SYS_ICC_PMR_EL1, x20
- mrs_s x21, SYS_ICC_CTLR_EL1
- tbz x21, #6, .L__skip_pmr_sync\@ // Check for ICC_CTLR_EL1.PMHE
- dsb sy // Ensure priority change is seen by redistributor
-.L__skip_pmr_sync\@:
+
+ /* Ensure priority change is seen by redistributor */
+alternative_if_not ARM64_HAS_GIC_PRIO_RELAXED_SYNC
+ dsb sy
alternative_else_nop_endif
+
+.Lskip_pmr_restore\@:
#endif
ldp x21, x22, [sp, #S_PC] // load ELR, SPSR
msr sp_el0, x1
ptrauth_keys_install_kernel x1, x8, x9, x10
scs_save x0
- scs_load x1
+ scs_load_current
ret
SYM_FUNC_END(cpu_switch_to)
NOKPROBE(cpu_switch_to)
*/
SYM_FUNC_START(call_on_irq_stack)
#ifdef CONFIG_SHADOW_CALL_STACK
- stp scs_sp, xzr, [sp, #-16]!
+ get_current_task x16
+ scs_save x16
ldr_this_cpu scs_sp, irq_shadow_call_stack_ptr, x17
#endif
+
/* Create a frame record to save our LR and SP (implicit in FP) */
stp x29, x30, [sp, #-16]!
mov x29, sp
ldr_this_cpu x16, irq_stack_ptr, x17
- mov x15, #IRQ_STACK_SIZE
- add x16, x16, x15
/* Move to the new stack and call the function there */
- mov sp, x16
+ add sp, x16, #IRQ_STACK_SIZE
blr x1
/*
*/
mov sp, x29
ldp x29, x30, [sp], #16
-#ifdef CONFIG_SHADOW_CALL_STACK
- ldp scs_sp, xzr, [sp], #16
-#endif
+ scs_load_current
ret
SYM_FUNC_END(call_on_irq_stack)
NOKPROBE(call_on_irq_stack)