Duncan Laurie (dlaurie@chromium.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16657
-gerrit
commit 1033d853bf9b7efbbd4a200f46cb3d9dfd06b68a Author: Duncan Laurie dlaurie@chromium.org Date: Mon Sep 19 12:04:19 2016 -0700
x86: acpi: Add function for querying GPE status
Add a function that can be implemented by the SOC to read and clear the status of a single GPE. This can be used during firmware to poll for interrupt status.
BUG=chrome-os-partner:53336
Change-Id: I536c2176320fefa4c186dabcdddb55880c47fbad Signed-off-by: Duncan Laurie dlaurie@chromium.org --- src/arch/x86/acpi.c | 5 +++++ src/arch/x86/include/arch/acpi.h | 3 +++ 2 files changed, 8 insertions(+)
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c index bbeb92f..edb6835 100644 --- a/src/arch/x86/acpi.c +++ b/src/arch/x86/acpi.c @@ -1093,3 +1093,8 @@ void acpi_save_gnvs(u32 gnvs_address) if (gnvs) *gnvs = gnvs_address; } + +__attribute__ ((weak)) int acpi_get_gpe(int gpe) +{ + return -1; /* implemented by SOC */ +} diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h index e81ddbf..7d29931 100644 --- a/src/arch/x86/include/arch/acpi.h +++ b/src/arch/x86/include/arch/acpi.h @@ -677,6 +677,9 @@ static inline int acpi_sleep_from_pm1(uint32_t pm1_cnt) /* Returns ACPI_Sx values. */ int acpi_get_sleep_type(void);
+/* Read and clear GPE status */ +int acpi_get_gpe(int gpe); + static inline int acpi_s3_resume_allowed(void) { return IS_ENABLED(CONFIG_HAVE_ACPI_RESUME);