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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef __ASM_CPUIDLE_H |
| 3 | #define __ASM_CPUIDLE_H |
| 4 | |
| 5 | #include <asm/proc-fns.h> |
| 6 | |
| 7 | #ifdef CONFIG_ARM64_PSEUDO_NMI |
| 8 | #include <asm/arch_gicv3.h> |
| 9 | |
| 10 | struct arm_cpuidle_irq_context { |
| 11 | unsigned long pmr; |
| 12 | unsigned long daif_bits; |
| 13 | }; |
| 14 | |
| 15 | #define arm_cpuidle_save_irq_context(__c) \ |
| 16 | do { \ |
| 17 | struct arm_cpuidle_irq_context *c = __c; \ |
| 18 | if (system_uses_irq_prio_masking()) { \ |
| 19 | c->daif_bits = read_sysreg(daif); \ |
| 20 | write_sysreg(c->daif_bits | PSR_I_BIT | PSR_F_BIT, \ |
| 21 | daif); \ |
| 22 | c->pmr = gic_read_pmr(); \ |
| 23 | gic_write_pmr(GIC_PRIO_IRQON | GIC_PRIO_PSR_I_SET); \ |
| 24 | } \ |
| 25 | } while (0) |
| 26 | |
| 27 | #define arm_cpuidle_restore_irq_context(__c) \ |
| 28 | do { \ |
| 29 | struct arm_cpuidle_irq_context *c = __c; \ |
| 30 | if (system_uses_irq_prio_masking()) { \ |
| 31 | gic_write_pmr(c->pmr); \ |
| 32 | write_sysreg(c->daif_bits, daif); \ |
| 33 | } \ |
| 34 | } while (0) |
| 35 | #else |
| 36 | struct arm_cpuidle_irq_context { }; |
| 37 | |
| 38 | #define arm_cpuidle_save_irq_context(c) (void)c |
| 39 | #define arm_cpuidle_restore_irq_context(c) (void)c |
| 40 | #endif |
| 41 | #endif |
| 42 |
Warning: This file is not a C or C++ file. It does not have highlighting.