From ff5077d4cc8daae6b78fcf8025d7ac2b6d7af0ef Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Fri, 3 Feb 2012 10:18:13 -0500 Subject: [PATCH] --- yaml --- r: 294721 b: refs/heads/master c: ad71c96213a68dfe6d761e3ff7ac7ac267fd612a h: refs/heads/master i: 294719: 9a29af615f5975b49947982c48d12ba162a97576 v: v3 --- [refs] | 2 +- trunk/drivers/pci/pcie/Kconfig | 25 +++++++++++++++++++++++++ trunk/drivers/pci/pcie/aspm.c | 8 ++++++++ 3 files changed, 34 insertions(+), 1 deletion(-) diff --git a/[refs] b/[refs] index fdcaa1ce8a14..b4d8b82fa19b 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: f67fd55fa96f7d7295b43ffbc4a97d8f55e473aa +refs/heads/master: ad71c96213a68dfe6d761e3ff7ac7ac267fd612a diff --git a/trunk/drivers/pci/pcie/Kconfig b/trunk/drivers/pci/pcie/Kconfig index 72962cc92e0a..6c8bc5809787 100644 --- a/trunk/drivers/pci/pcie/Kconfig +++ b/trunk/drivers/pci/pcie/Kconfig @@ -55,6 +55,31 @@ config PCIEASPM_DEBUG This enables PCI Express ASPM debug support. It will add per-device interface to control ASPM. +choice + prompt "Default ASPM policy" + default PCIEASPM_DEFAULT + depends on PCIEASPM + +config PCIEASPM_DEFAULT + bool "BIOS default" + depends on PCIEASPM + help + Use the BIOS defaults for PCI Express ASPM. + +config PCIEASPM_POWERSAVE + bool "Powersave" + depends on PCIEASPM + help + Enable PCI Express ASPM L0s and L1 where possible, even if the + BIOS did not. + +config PCIEASPM_PERFORMANCE + bool "Performance" + depends on PCIEASPM + help + Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them. +endchoice + config PCIE_PME def_bool y depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI diff --git a/trunk/drivers/pci/pcie/aspm.c b/trunk/drivers/pci/pcie/aspm.c index 1cfbf228fbb1..a0de5e123046 100644 --- a/trunk/drivers/pci/pcie/aspm.c +++ b/trunk/drivers/pci/pcie/aspm.c @@ -76,7 +76,15 @@ static LIST_HEAD(link_list); #define POLICY_DEFAULT 0 /* BIOS default setting */ #define POLICY_PERFORMANCE 1 /* high performance */ #define POLICY_POWERSAVE 2 /* high power saving */ + +#ifdef CONFIG_PCIEASPM_PERFORMANCE +static int aspm_policy = POLICY_PERFORMANCE; +#elif defined CONFIG_PCIEASPM_POWERSAVE +static int aspm_policy = POLICY_POWERSAVE; +#else static int aspm_policy; +#endif + static const char *policy_str[] = { [POLICY_DEFAULT] = "default", [POLICY_PERFORMANCE] = "performance",