diff options
| -rw-r--r-- | arch/x86/kernel/tboot.c | 8 | ||||
| -rw-r--r-- | drivers/acpi/acpica/hwsleep.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/osl.c | 24 | ||||
| -rw-r--r-- | include/acpi/acexcep.h | 1 | ||||
| -rw-r--r-- | include/linux/acpi.h | 10 | ||||
| -rw-r--r-- | include/linux/tboot.h | 1 |
6 files changed, 50 insertions, 4 deletions
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index e2410e27f97..1a4ab7df5b6 100644 --- a/arch/x86/kernel/tboot.c +++ b/arch/x86/kernel/tboot.c @@ -297,6 +297,12 @@ void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) tboot_shutdown(acpi_shutdown_map[sleep_state]); } +static int tboot_sleep_wrapper(u8 sleep_state, u32 pm1a_control, + u32 pm1b_control) +{ + tboot_sleep(sleep_state, pm1a_control, pm1b_control); + return 0; +} static atomic_t ap_wfs_count; @@ -345,6 +351,8 @@ static __init int tboot_late_init(void) atomic_set(&ap_wfs_count, 0); register_hotcpu_notifier(&tboot_cpu_notifier); + + acpi_os_set_prepare_sleep(&tboot_sleep_wrapper); return 0; } diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index d52da307365..992359af7e2 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -43,9 +43,9 @@ */ #include <acpi/acpi.h> +#include <linux/acpi.h> #include "accommon.h" #include "actables.h" -#include <linux/tboot.h> #include <linux/module.h> #define _COMPONENT ACPI_HARDWARE @@ -344,8 +344,12 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); - tboot_sleep(sleep_state, pm1a_control, pm1b_control); - + status = acpi_os_prepare_sleep(sleep_state, pm1a_control, + pm1b_control); + if (ACPI_SKIP(status)) + return_ACPI_STATUS(AE_OK); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); /* Write #2: Write both SLP_TYP + SLP_EN */ status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index f31c5c5f1b7..f3aae4ba507 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -76,6 +76,9 @@ EXPORT_SYMBOL(acpi_in_debugger); extern char line_buf[80]; #endif /*ENABLE_DEBUGGER */ +static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl, + u32 pm1b_ctrl); + static acpi_osd_handler acpi_irq_handler; static void *acpi_irq_context; static struct workqueue_struct *kacpid_wq; @@ -1659,3 +1662,24 @@ acpi_status acpi_os_terminate(void) return AE_OK; } + +acpi_status acpi_os_prepare_sleep(u8 sleep_state, u32 pm1a_control, + u32 pm1b_control) +{ + int rc = 0; + if (__acpi_os_prepare_sleep) + rc = __acpi_os_prepare_sleep(sleep_state, + pm1a_control, pm1b_control); + if (rc < 0) + return AE_ERROR; + else if (rc > 0) + return AE_CTRL_SKIP; + + return AE_OK; +} + +void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, + u32 pm1a_ctrl, u32 pm1b_ctrl)) +{ + __acpi_os_prepare_sleep = func; +} diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h index 5b6c391efc8..fa0d22ce089 100644 --- a/include/acpi/acexcep.h +++ b/include/acpi/acexcep.h @@ -57,6 +57,7 @@ #define ACPI_SUCCESS(a) (!(a)) #define ACPI_FAILURE(a) (a) +#define ACPI_SKIP(a) (a == AE_CTRL_SKIP) #define AE_OK (acpi_status) 0x0000 /* diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 6001b4da39d..fccd017b8b6 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -359,4 +359,14 @@ static inline int suspend_nvs_register(unsigned long a, unsigned long b) } #endif +#ifdef CONFIG_ACPI +void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, + u32 pm1a_ctrl, u32 pm1b_ctrl)); + +acpi_status acpi_os_prepare_sleep(u8 sleep_state, + u32 pm1a_control, u32 pm1b_control); +#else +#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0) +#endif + #endif /*_LINUX_ACPI_H*/ diff --git a/include/linux/tboot.h b/include/linux/tboot.h index 1dba6ee5520..c75128bed5f 100644 --- a/include/linux/tboot.h +++ b/include/linux/tboot.h @@ -143,7 +143,6 @@ static inline int tboot_enabled(void) extern void tboot_probe(void); extern void tboot_shutdown(u32 shutdown_type); -extern void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control); extern struct acpi_table_header *tboot_get_dmar_table( struct acpi_table_header *dmar_tbl); extern int tboot_force_iommu(void); |