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-rw-r--r--drivers/acpi/ec.c2
-rw-r--r--drivers/acpi/scan.c39
-rw-r--r--drivers/cpufreq/intel_pstate.c14
-rw-r--r--drivers/powercap/intel_rapl.c1
4 files changed, 42 insertions, 14 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 220d6406c9e9..5e8fed448850 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -861,7 +861,7 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
}
}
mutex_unlock(&ec->mutex);
- list_for_each_entry(handler, &free_list, node)
+ list_for_each_entry_safe(handler, tmp, &free_list, node)
acpi_ec_put_query_handler(handler);
}
EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 69bc0d888c01..03141aa4ea95 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -375,7 +375,11 @@ bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent)
struct acpi_device_physical_node *pn;
bool offline = true;
- mutex_lock(&adev->physical_node_lock);
+ /*
+ * acpi_container_offline() calls this for all of the container's
+ * children under the container's physical_node_lock lock.
+ */
+ mutex_lock_nested(&adev->physical_node_lock, SINGLE_DEPTH_NESTING);
list_for_each_entry(pn, &adev->physical_node_list, node)
if (device_supports_offline(pn->dev) && !pn->dev->offline) {
@@ -2388,9 +2392,6 @@ static void acpi_default_enumeration(struct acpi_device *device)
struct list_head resource_list;
bool is_spi_i2c_slave = false;
- if (!device->pnp.type.platform_id || device->handler)
- return;
-
/*
* Do not enemerate SPI/I2C slaves as they will be enuerated by their
* respective parents.
@@ -2403,6 +2404,29 @@ static void acpi_default_enumeration(struct acpi_device *device)
acpi_create_platform_device(device);
}
+static const struct acpi_device_id generic_device_ids[] = {
+ {"PRP0001", },
+ {"", },
+};
+
+static int acpi_generic_device_attach(struct acpi_device *adev,
+ const struct acpi_device_id *not_used)
+{
+ /*
+ * Since PRP0001 is the only ID handled here, the test below can be
+ * unconditional.
+ */
+ if (adev->data.of_compatible)
+ acpi_default_enumeration(adev);
+
+ return 1;
+}
+
+static struct acpi_scan_handler generic_device_handler = {
+ .ids = generic_device_ids,
+ .attach = acpi_generic_device_attach,
+};
+
static int acpi_scan_attach_handler(struct acpi_device *device)
{
struct acpi_hardware_id *hwid;
@@ -2428,8 +2452,6 @@ static int acpi_scan_attach_handler(struct acpi_device *device)
break;
}
}
- if (!ret)
- acpi_default_enumeration(device);
return ret;
}
@@ -2471,6 +2493,9 @@ static void acpi_bus_attach(struct acpi_device *device)
ret = device_attach(&device->dev);
if (ret < 0)
return;
+
+ if (!ret && device->pnp.type.platform_id)
+ acpi_default_enumeration(device);
}
device->flags.visited = true;
@@ -2629,6 +2654,8 @@ int __init acpi_scan_init(void)
acpi_pnp_init();
acpi_int340x_thermal_init();
+ acpi_scan_add_handler(&generic_device_handler);
+
mutex_lock(&acpi_scan_lock);
/*
* Enumerate devices in the ACPI namespace.
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index c5b81beccc8e..6414661ac1c4 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -31,6 +31,7 @@
#include <asm/div64.h>
#include <asm/msr.h>
#include <asm/cpu_device_id.h>
+#include <asm/cpufeature.h>
#define BYT_RATIOS 0x66a
#define BYT_VIDS 0x66b
@@ -649,7 +650,7 @@ static struct cpu_defaults byt_params = {
.pid_policy = {
.sample_rate_ms = 10,
.deadband = 0,
- .setpoint = 97,
+ .setpoint = 60,
.p_gain_pct = 14,
.d_gain_pct = 0,
.i_gain_pct = 4,
@@ -1200,8 +1201,7 @@ static int __init intel_pstate_init(void)
{
int cpu, rc = 0;
const struct x86_cpu_id *id;
- struct cpu_defaults *cpu_info;
- struct cpuinfo_x86 *c = &boot_cpu_data;
+ struct cpu_defaults *cpu_def;
if (no_load)
return -ENODEV;
@@ -1217,10 +1217,10 @@ static int __init intel_pstate_init(void)
if (intel_pstate_platform_pwr_mgmt_exists())
return -ENODEV;
- cpu_info = (struct cpu_defaults *)id->driver_data;
+ cpu_def = (struct cpu_defaults *)id->driver_data;
- copy_pid_params(&cpu_info->pid_policy);
- copy_cpu_funcs(&cpu_info->funcs);
+ copy_pid_params(&cpu_def->pid_policy);
+ copy_cpu_funcs(&cpu_def->funcs);
if (intel_pstate_msrs_not_valid())
return -ENODEV;
@@ -1231,7 +1231,7 @@ static int __init intel_pstate_init(void)
if (!all_cpu_data)
return -ENOMEM;
- if (cpu_has(c,X86_FEATURE_HWP) && !no_hwp)
+ if (static_cpu_has_safe(X86_FEATURE_HWP) && !no_hwp)
intel_pstate_hwp_enable();
if (!hwp_active && hwp_only)
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index e03877c4b195..fd243231620a 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1064,6 +1064,7 @@ static const struct x86_cpu_id rapl_ids[] __initconst = {
RAPL_CPU(0x3f, rapl_defaults_hsw_server),/* Haswell servers */
RAPL_CPU(0x4f, rapl_defaults_hsw_server),/* Broadwell servers */
RAPL_CPU(0x45, rapl_defaults_core),/* Haswell ULT */
+ RAPL_CPU(0x4E, rapl_defaults_core),/* Skylake */
RAPL_CPU(0x4C, rapl_defaults_atom),/* Braswell */
RAPL_CPU(0x4A, rapl_defaults_atom),/* Tangier */
RAPL_CPU(0x56, rapl_defaults_core),/* Future Xeon */