diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/acpi/acpi_amba.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/bus.c | 3 | ||||
| -rw-r--r-- | drivers/acpi/x86/s2idle.c | 12 |
4 files changed, 21 insertions, 5 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 3972de7b7565..3fec02522a6a 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -548,3 +548,13 @@ config ACPI_PRMT bool "Platform Runtime Mechanism Support" depends on EFI && X86_64 default y + help + Platform Runtime Mechanism (PRM) is a firmware interface exposing a + set of binary executables that can be called from the AML interpreter + or directly from device drivers. + + Say Y to enable the AML interpreter to execute the PRM code. + + While this feature is optional in principle, leaving it out may + substantially increase computational overhead related to the + initialization of some server systems. diff --git a/drivers/acpi/acpi_amba.c b/drivers/acpi/acpi_amba.c index 49b781a9cd97..ab8a4e0191b1 100644 --- a/drivers/acpi/acpi_amba.c +++ b/drivers/acpi/acpi_amba.c @@ -76,6 +76,7 @@ static int amba_handler_attach(struct acpi_device *adev, case IORESOURCE_MEM: if (!address_found) { dev->res = *rentry->res; + dev->res.name = dev_name(&dev->dev); address_found = true; } break; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 60fb6a843853..384b645a5e5f 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -303,7 +303,8 @@ static void acpi_bus_osc_negotiate_platform_control(void) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT; - capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PRM_SUPPORT; + if (IS_ENABLED(CONFIG_ACPI_PRMT)) + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PRM_SUPPORT; #ifdef CONFIG_ARM64 capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GENERIC_INITIATOR_SUPPORT; diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c index 816bf2c34b7a..1c507804fb10 100644 --- a/drivers/acpi/x86/s2idle.c +++ b/drivers/acpi/x86/s2idle.c @@ -417,11 +417,15 @@ static int lps0_device_attach(struct acpi_device *adev, mem_sleep_current = PM_SUSPEND_TO_IDLE; /* - * Some LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U, require the - * EC GPE to be enabled while suspended for certain wakeup devices to - * work, so mark it as wakeup-capable. + * Some Intel based LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U don't + * use intel-hid or intel-vbtn but require the EC GPE to be enabled while + * suspended for certain wakeup devices to work, so mark it as wakeup-capable. + * + * Only enable on !AMD as enabling this universally causes problems for a number + * of AMD based systems. */ - acpi_ec_mark_gpe_for_wake(); + if (!acpi_s2idle_vendor_amd()) + acpi_ec_mark_gpe_for_wake(); return 0; } |