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-rw-r--r--drivers/acpi/acpi_platform.c2
-rw-r--r--drivers/acpi/acpica/achware.h2
-rw-r--r--drivers/acpi/acpica/aclocal.h4
-rw-r--r--drivers/acpi/acpica/actables.h2
-rw-r--r--drivers/acpi/acpica/amlresrc.h34
-rw-r--r--drivers/acpi/acpica/evgpe.c23
-rw-r--r--drivers/acpi/acpica/evgpeinit.c1
-rw-r--r--drivers/acpi/acpica/evxface.c27
-rw-r--r--drivers/acpi/acpica/evxfevnt.c40
-rw-r--r--drivers/acpi/acpica/evxfgpe.c12
-rw-r--r--drivers/acpi/acpica/hwgpe.c9
-rw-r--r--drivers/acpi/acpica/tbxfroot.c33
-rw-r--r--drivers/acpi/device_pm.c2
-rw-r--r--drivers/acpi/ec.c107
-rw-r--r--drivers/acpi/scan.c2
-rw-r--r--drivers/acpi/sysfs.c4
-rw-r--r--drivers/cpufreq/cpufreq-dt.c21
-rw-r--r--drivers/cpufreq/cpufreq.c38
-rw-r--r--drivers/cpufreq/intel_pstate.c110
-rw-r--r--drivers/cpuidle/cpuidle-powernv.c27
-rw-r--r--drivers/pci/pcie/pme.c6
21 files changed, 378 insertions, 128 deletions
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index a3c89a1bcf54..6ba8beb6b9d2 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -16,6 +16,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include "internal.h"
@@ -102,6 +103,7 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
pdevinfo.res = resources;
pdevinfo.num_res = count;
pdevinfo.acpi_node.companion = adev;
+ pdevinfo.dma_mask = DMA_BIT_MASK(32);
pdev = platform_device_register_full(&pdevinfo);
if (IS_ERR(pdev))
dev_err(&adev->dev, "platform device creation failed: %ld\n",
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 2ad2351a9833..c318d3e27893 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -127,7 +127,7 @@ acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
acpi_status
acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
- acpi_event_status * event_status);
+ acpi_event_status *event_status);
acpi_status acpi_hw_disable_all_gpes(void);
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 2747279fbe3c..c00e7e41ad75 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -413,8 +413,8 @@ struct acpi_gpe_handler_info {
acpi_gpe_handler address; /* Address of handler, if any */
void *context; /* Context to be passed to handler */
struct acpi_namespace_node *method_node; /* Method node for this GPE level (saved) */
- u8 original_flags; /* Original (pre-handler) GPE info */
- u8 originally_enabled; /* True if GPE was originally enabled */
+ u8 original_flags; /* Original (pre-handler) GPE info */
+ u8 originally_enabled; /* True if GPE was originally enabled */
};
/* Notify info for implicit notify, multiple device objects */
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index f14882788eee..1afe46e44dac 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -49,6 +49,8 @@ acpi_status acpi_allocate_root_table(u32 initial_table_count);
/*
* tbxfroot - Root pointer utilities
*/
+u32 acpi_tb_get_rsdp_length(struct acpi_table_rsdp *rsdp);
+
acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length);
diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h
index f3f834408441..3a0beeb86ba5 100644
--- a/drivers/acpi/acpica/amlresrc.h
+++ b/drivers/acpi/acpica/amlresrc.h
@@ -117,6 +117,12 @@ struct asl_resource_node {
struct asl_resource_node *next;
};
+struct asl_resource_info {
+ union acpi_parse_object *descriptor_type_op; /* Resource descriptor parse node */
+ union acpi_parse_object *mapping_op; /* Used for mapfile support */
+ u32 current_byte_offset; /* Offset in resource template */
+};
+
/* Macros used to generate AML resource length fields */
#define ACPI_AML_SIZE_LARGE(r) (sizeof (r) - sizeof (struct aml_resource_large_header))
@@ -449,4 +455,32 @@ union aml_resource {
u8 byte_item;
};
+/* Interfaces used by both the disassembler and compiler */
+
+void
+mp_save_gpio_info(union acpi_parse_object *op,
+ union aml_resource *resource,
+ u32 pin_count, u16 *pin_list, char *device_name);
+
+void
+mp_save_serial_info(union acpi_parse_object *op,
+ union aml_resource *resource, char *device_name);
+
+char *mp_get_hid_from_parse_tree(struct acpi_namespace_node *hid_node);
+
+char *mp_get_hid_via_namestring(char *device_name);
+
+char *mp_get_connection_info(union acpi_parse_object *op,
+ u32 pin_index,
+ struct acpi_namespace_node **target_node,
+ char **target_name);
+
+char *mp_get_parent_device_hid(union acpi_parse_object *op,
+ struct acpi_namespace_node **target_node,
+ char **parent_device_name);
+
+char *mp_get_ddn_value(char *device_name);
+
+char *mp_get_hid_value(struct acpi_namespace_node *device_node);
+
#endif
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index e4ba4dec86af..2095dfb72bcb 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -100,13 +100,14 @@ acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info)
*
* FUNCTION: acpi_ev_enable_gpe
*
- * PARAMETERS: gpe_event_info - GPE to enable
+ * PARAMETERS: gpe_event_info - GPE to enable
*
* RETURN: Status
*
* DESCRIPTION: Clear a GPE of stale events and enable it.
*
******************************************************************************/
+
acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
{
acpi_status status;
@@ -125,6 +126,7 @@ acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
}
/* Clear the GPE (of stale events) */
+
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
@@ -136,7 +138,6 @@ acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ev_add_gpe_reference
@@ -212,7 +213,7 @@ acpi_ev_remove_gpe_reference(struct acpi_gpe_event_info *gpe_event_info)
if (ACPI_SUCCESS(status)) {
status =
acpi_hw_low_set_gpe(gpe_event_info,
- ACPI_GPE_DISABLE);
+ ACPI_GPE_DISABLE);
}
if (ACPI_FAILURE(status)) {
@@ -334,7 +335,7 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
*
******************************************************************************/
-u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
+u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list)
{
acpi_status status;
struct acpi_gpe_block_info *gpe_block;
@@ -427,7 +428,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
/* Check if there is anything active at all in this register */
- enabled_status_byte = (u8) (status_reg & enable_reg);
+ enabled_status_byte = (u8)(status_reg & enable_reg);
if (!enabled_status_byte) {
/* No active GPEs in this register, move on */
@@ -450,7 +451,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
acpi_ev_gpe_dispatch(gpe_block->
node,
&gpe_block->
- event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number);
+ event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number);
}
}
}
@@ -636,7 +637,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_enable_gpe(void *context)
*
******************************************************************************/
-acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info)
+acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info * gpe_event_info)
{
acpi_status status;
@@ -666,9 +667,9 @@ acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info)
*
* FUNCTION: acpi_ev_gpe_dispatch
*
- * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1
- * gpe_event_info - Info for this GPE
- * gpe_number - Number relative to the parent GPE block
+ * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1
+ * gpe_event_info - Info for this GPE
+ * gpe_number - Number relative to the parent GPE block
*
* RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
*
@@ -681,7 +682,7 @@ acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info)
u32
acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
- struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
+ struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
{
acpi_status status;
u32 return_value;
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 49fc7effd961..7be928379879 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -424,6 +424,7 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle,
}
/* Disable the GPE in case it's been enabled already. */
+
(void)acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
/*
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 11e5803b8b41..55a58f3ec8df 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -786,18 +786,26 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
handler->method_node = gpe_event_info->dispatch.method_node;
handler->original_flags = (u8)(gpe_event_info->flags &
(ACPI_GPE_XRUPT_TYPE_MASK |
- ACPI_GPE_DISPATCH_MASK));
+ ACPI_GPE_DISPATCH_MASK));
/*
* If the GPE is associated with a method, it may have been enabled
* automatically during initialization, in which case it has to be
* disabled now to avoid spurious execution of the handler.
*/
-
- if ((handler->original_flags & ACPI_GPE_DISPATCH_METHOD)
- && gpe_event_info->runtime_count) {
- handler->originally_enabled = 1;
+ if (((handler->original_flags & ACPI_GPE_DISPATCH_METHOD) ||
+ (handler->original_flags & ACPI_GPE_DISPATCH_NOTIFY)) &&
+ gpe_event_info->runtime_count) {
+ handler->originally_enabled = TRUE;
(void)acpi_ev_remove_gpe_reference(gpe_event_info);
+
+ /* Sanity check of original type against new type */
+
+ if (type !=
+ (u32)(gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK)) {
+ ACPI_WARNING((AE_INFO,
+ "GPE type mismatch (level/edge)"));
+ }
}
/* Install the handler */
@@ -808,7 +816,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
gpe_event_info->flags &=
~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
- gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER);
+ gpe_event_info->flags |= (u8)(type | ACPI_GPE_DISPATCH_HANDLER);
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
@@ -893,7 +901,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
gpe_event_info->dispatch.method_node = handler->method_node;
gpe_event_info->flags &=
- ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
+ ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK);
gpe_event_info->flags |= handler->original_flags;
/*
@@ -901,7 +909,8 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
* enabled, it should be enabled at this point to restore the
* post-initialization configuration.
*/
- if ((handler->original_flags & ACPI_GPE_DISPATCH_METHOD) &&
+ if (((handler->original_flags & ACPI_GPE_DISPATCH_METHOD) ||
+ (handler->original_flags & ACPI_GPE_DISPATCH_NOTIFY)) &&
handler->originally_enabled) {
(void)acpi_ev_add_gpe_reference(gpe_event_info);
}
@@ -946,7 +955,7 @@ ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler)
* handle is returned.
*
******************************************************************************/
-acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
+acpi_status acpi_acquire_global_lock(u16 timeout, u32 *handle)
{
acpi_status status;
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index e286640ad4ff..bb8cbf5961bf 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -324,8 +324,9 @@ ACPI_EXPORT_SYMBOL(acpi_clear_event)
******************************************************************************/
acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
{
- acpi_status status = AE_OK;
- u32 value;
+ acpi_status status;
+ acpi_event_status local_event_status = 0;
+ u32 in_byte;
ACPI_FUNCTION_TRACE(acpi_get_event_status);
@@ -339,29 +340,40 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- /* Get the status of the requested fixed event */
+ /* Fixed event currently can be dispatched? */
+
+ if (acpi_gbl_fixed_event_handlers[event].handler) {
+ local_event_status |= ACPI_EVENT_FLAG_HAS_HANDLER;
+ }
+
+ /* Fixed event currently enabled? */
status =
acpi_read_bit_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, &value);
- if (ACPI_FAILURE(status))
+ enable_register_id, &in_byte);
+ if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
+ }
- *event_status = value;
+ if (in_byte) {
+ local_event_status |= ACPI_EVENT_FLAG_ENABLED;
+ }
+
+ /* Fixed event currently active? */
status =
acpi_read_bit_register(acpi_gbl_fixed_event_info[event].
- status_register_id, &value);
- if (ACPI_FAILURE(status))
+ status_register_id, &in_byte);
+ if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
+ }
- if (value)
- *event_status |= ACPI_EVENT_FLAG_SET;
-
- if (acpi_gbl_fixed_event_handlers[event].handler)
- *event_status |= ACPI_EVENT_FLAG_HANDLE;
+ if (in_byte) {
+ local_event_status |= ACPI_EVENT_FLAG_SET;
+ }
- return_ACPI_STATUS(status);
+ (*event_status) = local_event_status;
+ return_ACPI_STATUS(AE_OK);
}
ACPI_EXPORT_SYMBOL(acpi_get_event_status)
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 56710a03c9b0..e889a5304abd 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -106,8 +106,8 @@ ACPI_EXPORT_SYMBOL(acpi_update_all_gpes)
*
* FUNCTION: acpi_enable_gpe
*
- * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
- * gpe_number - GPE level within the GPE block
+ * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
+ * gpe_number - GPE level within the GPE block
*
* RETURN: Status
*
@@ -115,7 +115,6 @@ ACPI_EXPORT_SYMBOL(acpi_update_all_gpes)
* hardware-enabled.
*
******************************************************************************/
-
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number)
{
acpi_status status = AE_BAD_PARAMETER;
@@ -490,8 +489,8 @@ ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
*
* FUNCTION: acpi_get_gpe_status
*
- * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
- * gpe_number - GPE level within the GPE block
+ * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1
+ * gpe_number - GPE level within the GPE block
* event_status - Where the current status of the event
* will be returned
*
@@ -524,9 +523,6 @@ acpi_get_gpe_status(acpi_handle gpe_device,
status = acpi_hw_get_gpe_status(gpe_event_info, event_status);
- if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
- *event_status |= ACPI_EVENT_FLAG_HANDLE;
-
unlock_and_exit:
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index ea62d40fd161..48ac7b7b59cd 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -202,7 +202,7 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
acpi_status
acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
- acpi_event_status * event_status)
+ acpi_event_status *event_status)
{
u32 in_byte;
u32 register_bit;
@@ -216,6 +216,13 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
return (AE_BAD_PARAMETER);
}
+ /* GPE currently handled? */
+
+ if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) !=
+ ACPI_GPE_DISPATCH_NONE) {
+ local_event_status |= ACPI_EVENT_FLAG_HAS_HANDLER;
+ }
+
/* Get the info block for the entire GPE register */
gpe_register_info = gpe_event_info->register_info;
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 65ab8fed3d5e..43a54af2b548 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -50,6 +50,36 @@ ACPI_MODULE_NAME("tbxfroot")
/*******************************************************************************
*
+ * FUNCTION: acpi_tb_get_rsdp_length
+ *
+ * PARAMETERS: rsdp - Pointer to RSDP
+ *
+ * RETURN: Table length
+ *
+ * DESCRIPTION: Get the length of the RSDP
+ *
+ ******************************************************************************/
+u32 acpi_tb_get_rsdp_length(struct acpi_table_rsdp *rsdp)
+{
+
+ if (!ACPI_VALIDATE_RSDP_SIG(rsdp->signature)) {
+
+ /* BAD Signature */
+
+ return (0);
+ }
+
+ /* "Length" field is available if table version >= 2 */
+
+ if (rsdp->revision >= 2) {
+ return (rsdp->length);
+ } else {
+ return (ACPI_RSDP_CHECKSUM_LENGTH);
+ }
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_tb_validate_rsdp
*
* PARAMETERS: rsdp - Pointer to unvalidated RSDP
@@ -59,7 +89,8 @@ ACPI_MODULE_NAME("tbxfroot")
* DESCRIPTION: Validate the RSDP (ptr)
*
******************************************************************************/
-acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
+
+acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp * rsdp)
{
/*
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 7103de034c9e..143ec6ea1468 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -711,7 +711,7 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
return -ENODEV;
}
- return acpi_device_wakeup(adev, enable, ACPI_STATE_S0);
+ return acpi_device_wakeup(adev, ACPI_STATE_S0, enable);
}
EXPORT_SYMBOL(acpi_pm_device_run_wake);
#endif /* CONFIG_PM_RUNTIME */
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index cb6066c809ea..3d304ff7f095 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -128,12 +128,13 @@ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */
static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */
/* --------------------------------------------------------------------------
- Transaction Management
- -------------------------------------------------------------------------- */
+ * Transaction Management
+ * -------------------------------------------------------------------------- */
static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
{
u8 x = inb(ec->command_addr);
+
pr_debug("EC_SC(R) = 0x%2.2x "
"SCI_EVT=%d BURST=%d CMD=%d IBF=%d OBF=%d\n",
x,
@@ -148,6 +149,7 @@ static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
{
u8 x = inb(ec->data_addr);
+
pr_debug("EC_DATA(R) = 0x%2.2x\n", x);
return x;
}
@@ -164,10 +166,32 @@ static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
outb(data, ec->data_addr);
}
+#ifdef DEBUG
+static const char *acpi_ec_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ case 0x80:
+ return "RD_EC";
+ case 0x81:
+ return "WR_EC";
+ case 0x82:
+ return "BE_EC";
+ case 0x83:
+ return "BD_EC";
+ case 0x84:
+ return "QR_EC";
+ }
+ return "UNKNOWN";
+}
+#else
+#define acpi_ec_cmd_string(cmd) "UNDEF"
+#endif
+
static int ec_transaction_completed(struct acpi_ec *ec)
{
unsigned long flags;
int ret = 0;
+
spin_lock_irqsave(&ec->lock, flags);
if (ec->curr && (ec->curr->flags & ACPI_EC_COMMAND_COMPLETE))
ret = 1;
@@ -181,7 +205,8 @@ static bool advance_transaction(struct acpi_ec *ec)
u8 status;
bool wakeup = false;
- pr_debug("===== %s =====\n", in_interrupt() ? "IRQ" : "TASK");
+ pr_debug("===== %s (%d) =====\n",
+ in_interrupt() ? "IRQ" : "TASK", smp_processor_id());
status = acpi_ec_read_status(ec);
t = ec->curr;
if (!t)
@@ -198,7 +223,8 @@ static bool advance_transaction(struct acpi_ec *ec)
if (t->rlen == t->ri) {
t->flags |= ACPI_EC_COMMAND_COMPLETE;
if (t->command == ACPI_EC_COMMAND_QUERY)
- pr_debug("hardware QR_EC completion\n");
+ pr_debug("***** Command(%s) hardware completion *****\n",
+ acpi_ec_cmd_string(t->command));
wakeup = true;
}
} else
@@ -221,7 +247,8 @@ static bool advance_transaction(struct acpi_ec *ec)
t->flags |= ACPI_EC_COMMAND_POLL;
t->rdata[t->ri++] = 0x00;
t->flags |= ACPI_EC_COMMAND_COMPLETE;
- pr_debug("software QR_EC completion\n");
+ pr_debug("***** Command(%s) software completion *****\n",
+ acpi_ec_cmd_string(t->command));
wakeup = true;
} else if ((status & ACPI_EC_FLAG_IBF) == 0) {
acpi_ec_write_cmd(ec, t->command);
@@ -264,6 +291,7 @@ static int ec_poll(struct acpi_ec *ec)
{
unsigned long flags;
int repeat = 5; /* number of command restarts */
+
while (repeat--) {
unsigned long delay = jiffies +
msecs_to_jiffies(ec_delay);
@@ -296,18 +324,25 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
{
unsigned long tmp;
int ret = 0;
+
if (EC_FLAGS_MSI)
udelay(ACPI_EC_MSI_UDELAY);
/* start transaction */
spin_lock_irqsave(&ec->lock, tmp);
/* following two actions should be kept atomic */
ec->curr = t;
+ pr_debug("***** Command(%s) started *****\n",
+ acpi_ec_cmd_string(t->command));
start_transaction(ec);
spin_unlock_irqrestore(&ec->lock, tmp);
ret = ec_poll(ec);
spin_lock_irqsave(&ec->lock, tmp);
- if (ec->curr->command == ACPI_EC_COMMAND_QUERY)
+ if (ec->curr->command == ACPI_EC_COMMAND_QUERY) {
clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
+ pr_debug("***** Event stopped *****\n");
+ }
+ pr_debug("***** Command(%s) stopped *****\n",
+ acpi_ec_cmd_string(t->command));
ec->curr = NULL;
spin_unlock_irqrestore(&ec->lock, tmp);
return ret;
@@ -317,6 +352,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
{
int status;
u32 glk;
+
if (!ec || (!t) || (t->wlen && !t->wdata) || (t->rlen && !t->rdata))
return -EINVAL;
if (t->rdata)
@@ -333,8 +369,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
goto unlock;
}
}
- pr_debug("transaction start (cmd=0x%02x, addr=0x%02x)\n",
- t->command, t->wdata ? t->wdata[0] : 0);
/* disable GPE during transaction if storm is detected */
if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
/* It has to be disabled, so that it doesn't trigger. */
@@ -355,7 +389,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
t->irq_count);
set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
}
- pr_debug("transaction end\n");
if (ec->global_lock)
acpi_release_global_lock(glk);
unlock:
@@ -383,7 +416,7 @@ static int acpi_ec_burst_disable(struct acpi_ec *ec)
acpi_ec_transaction(ec, &t) : 0;
}
-static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
+static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data)
{
int result;
u8 d;
@@ -419,10 +452,9 @@ int ec_read(u8 addr, u8 *val)
if (!err) {
*val = temp_data;
return 0;
- } else
- return err;
+ }
+ return err;
}
-
EXPORT_SYMBOL(ec_read);
int ec_write(u8 addr, u8 val)
@@ -436,22 +468,21 @@ int ec_write(u8 addr, u8 val)
return err;
}
-
EXPORT_SYMBOL(ec_write);
int ec_transaction(u8 command,
- const u8 * wdata, unsigned wdata_len,
- u8 * rdata, unsigned rdata_len)
+ const u8 *wdata, unsigned wdata_len,
+ u8 *rdata, unsigned rdata_len)
{
struct transaction t = {.command = command,
.wdata = wdata, .rdata = rdata,
.wlen = wdata_len, .rlen = rdata_len};
+
if (!first_ec)
return -ENODEV;
return acpi_ec_transaction(first_ec, &t);
}
-
EXPORT_SYMBOL(ec_transaction);
/* Get the handle to the EC device */
@@ -461,7 +492,6 @@ acpi_handle ec_get_handle(void)
return NULL;
return first_ec->handle;
}
-
EXPORT_SYMBOL(ec_get_handle);
/*
@@ -525,13 +555,14 @@ void acpi_ec_unblock_transactions_early(void)
clear_bit(EC_FLAGS_BLOCKED, &first_ec->flags);
}
-static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data)
+static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data)
{
int result;
u8 d;
struct transaction t = {.command = ACPI_EC_COMMAND_QUERY,
.wdata = NULL, .rdata = &d,
.wlen = 0, .rlen = 1};
+
if (!ec || !data)
return -EINVAL;
/*
@@ -557,6 +588,7 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
{
struct acpi_ec_query_handler *handler =
kzalloc(sizeof(struct acpi_ec_query_handler), GFP_KERNEL);
+
if (!handler)
return -ENOMEM;
@@ -569,12 +601,12 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
mutex_unlock(&ec->mutex);
return 0;
}
-
EXPORT_SYMBOL_GPL(acpi_ec_add_query_handler);
void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
{
struct acpi_ec_query_handler *handler, *tmp;
+
mutex_lock(&ec->mutex);
list_for_each_entry_safe(handler, tmp, &ec->list, node) {
if (query_bit == handler->query_bit) {
@@ -584,20 +616,20 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
}
mutex_unlock(&ec->mutex);
}
-
EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
static void acpi_ec_run(void *cxt)
{
struct acpi_ec_query_handler *handler = cxt;
+
if (!handler)
return;
- pr_debug("start query execution\n");
+ pr_debug("##### Query(0x%02x) started #####\n", handler->query_bit);
if (handler->func)
handler->func(handler->data);
else if (handler->handle)
acpi_evaluate_object(handler->handle, NULL, NULL, NULL);
- pr_debug("stop query execution\n");
+ pr_debug("##### Query(0x%02x) stopped #####\n", handler->query_bit);
kfree(handler);
}
@@ -620,8 +652,8 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data)
if (!copy)
return -ENOMEM;
memcpy(copy, handler, sizeof(*copy));
- pr_debug("push query execution (0x%2x) on queue\n",
- value);
+ pr_debug("##### Query(0x%02x) scheduled #####\n",
+ handler->query_bit);
return acpi_os_execute((copy->func) ?
OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER,
acpi_ec_run, copy);
@@ -633,6 +665,7 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data)
static void acpi_ec_gpe_query(void *ec_cxt)
{
struct acpi_ec *ec = ec_cxt;
+
if (!ec)
return;
mutex_lock(&ec->mutex);
@@ -644,7 +677,7 @@ static int ec_check_sci(struct acpi_ec *ec, u8 state)
{
if (state & ACPI_EC_FLAG_SCI) {
if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
- pr_debug("push gpe query to the queue\n");
+ pr_debug("***** Event started *****\n");
return acpi_os_execute(OSL_NOTIFY_HANDLER,
acpi_ec_gpe_query, ec);
}
@@ -667,8 +700,8 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device,
}
/* --------------------------------------------------------------------------
- Address Space Management
- -------------------------------------------------------------------------- */
+ * Address Space Management
+ * -------------------------------------------------------------------------- */
static acpi_status
acpi_ec_space_handler(u32 function, acpi_physical_address address,
@@ -699,27 +732,26 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
switch (result) {
case -EINVAL:
return AE_BAD_PARAMETER;
- break;
case -ENODEV:
return AE_NOT_FOUND;
- break;
case -ETIME:
return AE_TIME;
- break;
default:
return AE_OK;
}
}
/* --------------------------------------------------------------------------
- Driver Interface
- -------------------------------------------------------------------------- */
+ * Driver Interface
+ * -------------------------------------------------------------------------- */
+
static acpi_status
ec_parse_io_ports(struct acpi_resource *resource, void *context);
static struct acpi_ec *make_acpi_ec(void)
{
struct acpi_ec *ec = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
+
if (!ec)
return NULL;
ec->flags = 1 << EC_FLAGS_QUERY_PENDING;
@@ -742,9 +774,8 @@ acpi_ec_register_query_methods(acpi_handle handle, u32 level,
status = acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer);
- if (ACPI_SUCCESS(status) && sscanf(node_name, "_Q%x", &value) == 1) {
+ if (ACPI_SUCCESS(status) && sscanf(node_name, "_Q%x", &value) == 1)
acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
- }
return AE_OK;
}
@@ -753,7 +784,6 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
{
acpi_status status;
unsigned long long tmp = 0;
-
struct acpi_ec *ec = context;
/* clear addr values, ec_parse_io_ports depend on it */
@@ -781,6 +811,7 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
static int ec_install_handlers(struct acpi_ec *ec)
{
acpi_status status;
+
if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags))
return 0;
status = acpi_install_gpe_handler(NULL, ec->gpe,
@@ -1078,7 +1109,8 @@ int __init acpi_ec_ecdt_probe(void)
boot_ec->data_addr = ecdt_ptr->data.address;
boot_ec->gpe = ecdt_ptr->gpe;
boot_ec->handle = ACPI_ROOT_OBJECT;
- acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle);
+ acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id,
+ &boot_ec->handle);
/* Don't trust ECDT, which comes from ASUSTek */
if (!EC_FLAGS_VALIDATE_ECDT)
goto install;
@@ -1162,6 +1194,5 @@ static void __exit acpi_ec_exit(void)
{
acpi_bus_unregister_driver(&acpi_ec_driver);
- return;
}
#endif /* 0 */
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 095c6ddde8a3..d670158a26c5 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1470,7 +1470,7 @@ static void acpi_wakeup_gpe_init(struct acpi_device *device)
if (ACPI_FAILURE(status))
return;
- wakeup->flags.run_wake = !!(event_status & ACPI_EVENT_FLAG_HANDLE);
+ wakeup->flags.run_wake = !!(event_status & ACPI_EVENT_FLAG_HAS_HANDLER);
}
static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 38cb9782d4b8..13e577c80201 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -537,7 +537,7 @@ static ssize_t counter_show(struct kobject *kobj,
if (result)
goto end;
- if (!(status & ACPI_EVENT_FLAG_HANDLE))
+ if (!(status & ACPI_EVENT_FLAG_HAS_HANDLER))
size += sprintf(buf + size, " invalid");
else if (status & ACPI_EVENT_FLAG_ENABLED)
size += sprintf(buf + size, " enabled");
@@ -581,7 +581,7 @@ static ssize_t counter_set(struct kobject *kobj,
if (result)
goto end;
- if (!(status & ACPI_EVENT_FLAG_HANDLE)) {
+ if (!(status & ACPI_EVENT_FLAG_HAS_HANDLER)) {
printk(KERN_WARNING PREFIX
"Can not change Invalid GPE/Fixed Event status\n");
return -EINVAL;
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 6bbb8b913446..92c162af5045 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -18,6 +18,7 @@
#include <linux/cpu.h>
#include <linux/cpu_cooling.h>
#include <linux/cpufreq.h>
+#include <linux/cpufreq-dt.h>
#include <linux/cpumask.h>
#include <linux/err.h>
#include <linux/module.h>
@@ -146,8 +147,8 @@ try_again:
goto try_again;
}
- dev_warn(cpu_dev, "failed to get cpu%d regulator: %ld\n",
- cpu, PTR_ERR(cpu_reg));
+ dev_dbg(cpu_dev, "no regulator for cpu%d: %ld\n",
+ cpu, PTR_ERR(cpu_reg));
}
cpu_clk = clk_get(cpu_dev, NULL);
@@ -178,6 +179,7 @@ try_again:
static int cpufreq_init(struct cpufreq_policy *policy)
{
+ struct cpufreq_dt_platform_data *pd;
struct cpufreq_frequency_table *freq_table;
struct thermal_cooling_device *cdev;
struct device_node *np;
@@ -265,9 +267,18 @@ static int cpufreq_init(struct cpufreq_policy *policy)
policy->driver_data = priv;
policy->clk = cpu_clk;
- ret = cpufreq_generic_init(policy, freq_table, transition_latency);
- if (ret)
+ ret = cpufreq_table_validate_and_show(policy, freq_table);
+ if (ret) {
+ dev_err(cpu_dev, "%s: invalid frequency table: %d\n", __func__,
+ ret);
goto out_cooling_unregister;
+ }
+
+ policy->cpuinfo.transition_latency = transition_latency;
+
+ pd = cpufreq_get_driver_data();
+ if (pd && !pd->independent_clocks)
+ cpumask_setall(policy->cpus);
of_node_put(np);
@@ -335,6 +346,8 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
if (!IS_ERR(cpu_reg))
regulator_put(cpu_reg);
+ dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
+
ret = cpufreq_register_driver(&dt_cpufreq_driver);
if (ret)
dev_err(cpu_dev, "failed register driver: %d\n", ret);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 24bf76fba141..644b54e1e7d1 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -512,7 +512,18 @@ show_one(cpuinfo_max_freq, cpuinfo.max_freq);
show_one(cpuinfo_transition_latency, cpuinfo.transition_latency);
show_one(scaling_min_freq, min);
show_one(scaling_max_freq, max);
-show_one(scaling_cur_freq, cur);
+
+static ssize_t show_scaling_cur_freq(
+ struct cpufreq_policy *policy, char *buf)
+{
+ ssize_t ret;
+
+ if (cpufreq_driver && cpufreq_driver->setpolicy && cpufreq_driver->get)
+ ret = sprintf(buf, "%u\n", cpufreq_driver->get(policy->cpu));
+ else
+ ret = sprintf(buf, "%u\n", policy->cur);
+ return ret;
+}
static int cpufreq_set_policy(struct cpufreq_policy *policy,
struct cpufreq_policy *new_policy);
@@ -906,11 +917,11 @@ static int cpufreq_add_dev_interface(struct cpufreq_policy *policy,
if (ret)
goto err_out_kobj_put;
}
- if (has_target()) {
- ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr);
- if (ret)
- goto err_out_kobj_put;
- }
+
+ ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr);
+ if (ret)
+ goto err_out_kobj_put;
+
if (cpufreq_driver->bios_limit) {
ret = sysfs_create_file(&policy->kobj, &bios_limit.attr);
if (ret)
@@ -1731,6 +1742,21 @@ const char *cpufreq_get_current_driver(void)
}
EXPORT_SYMBOL_GPL(cpufreq_get_current_driver);
+/**
+ * cpufreq_get_driver_data - return current driver data
+ *
+ * Return the private data of the currently loaded cpufreq
+ * driver, or NULL if no cpufreq driver is loaded.
+ */
+void *cpufreq_get_driver_data(void)
+{
+ if (cpufreq_driver)
+ return cpufreq_driver->driver_data;
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(cpufreq_get_driver_data);
+
/*********************************************************************
* NOTIFIER LISTS INTERFACE *
*********************************************************************/
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 0668b389c516..27bb6d3877ed 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -52,6 +52,17 @@ static inline int32_t div_fp(int32_t x, int32_t y)
return div_s64((int64_t)x << FRAC_BITS, y);
}
+static inline int ceiling_fp(int32_t x)
+{
+ int mask, ret;
+
+ ret = fp_toint(x);
+ mask = (1 << FRAC_BITS) - 1;
+ if (x & mask)
+ ret += 1;
+ return ret;
+}
+
struct sample {
int32_t core_pct_busy;
u64 aperf;
@@ -64,6 +75,7 @@ struct pstate_data {
int current_pstate;
int min_pstate;
int max_pstate;
+ int scaling;
int turbo_pstate;
};
@@ -113,6 +125,7 @@ struct pstate_funcs {
int (*get_max)(void);
int (*get_min)(void);
int (*get_turbo)(void);
+ int (*get_scaling)(void);
void (*set)(struct cpudata*, int pstate);
void (*get_vid)(struct cpudata *);
};
@@ -138,6 +151,7 @@ struct perf_limits {
static struct perf_limits limits = {
.no_turbo = 0,
+ .turbo_disabled = 0,
.max_perf_pct = 100,
.max_perf = int_tofp(1),
.min_perf_pct = 0,
@@ -218,6 +232,18 @@ static inline void intel_pstate_reset_all_pid(void)
}
}
+static inline void update_turbo_state(void)
+{
+ u64 misc_en;
+ struct cpudata *cpu;
+
+ cpu = all_cpu_data[0];
+ rdmsrl(MSR_IA32_MISC_ENABLE, misc_en);
+ limits.turbo_disabled =
+ (misc_en & MSR_IA32_MISC_ENABLE_TURBO_DISABLE ||
+ cpu->pstate.max_pstate == cpu->pstate.turbo_pstate);
+}
+
/************************** debugfs begin ************************/
static int pid_param_set(void *data, u64 val)
{
@@ -274,6 +300,20 @@ static void __init intel_pstate_debug_expose_params(void)
return sprintf(buf, "%u\n", limits.object); \
}
+static ssize_t show_no_turbo(struct kobject *kobj,
+ struct attribute *attr, char *buf)
+{
+ ssize_t ret;
+
+ update_turbo_state();
+ if (limits.turbo_disabled)
+ ret = sprintf(buf, "%u\n", limits.turbo_disabled);
+ else
+ ret = sprintf(buf, "%u\n", limits.no_turbo);
+
+ return ret;
+}
+
static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
const char *buf, size_t count)
{
@@ -283,11 +323,14 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
ret = sscanf(buf, "%u", &input);
if (ret != 1)
return -EINVAL;
- limits.no_turbo = clamp_t(int, input, 0 , 1);
+
+ update_turbo_state();
if (limits.turbo_disabled) {
pr_warn("Turbo disabled by BIOS or unavailable on processor\n");
- limits.no_turbo = limits.turbo_disabled;
+ return -EPERM;
}
+ limits.no_turbo = clamp_t(int, input, 0, 1);
+
return count;
}
@@ -323,7 +366,6 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
return count;
}
-show_one(no_turbo, no_turbo);
show_one(max_perf_pct, max_perf_pct);
show_one(min_perf_pct, min_perf_pct);
@@ -394,7 +436,7 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate)
cpudata->vid.ratio);
vid_fp = clamp_t(int32_t, vid_fp, cpudata->vid.min, cpudata->vid.max);
- vid = fp_toint(vid_fp);
+ vid = ceiling_fp(vid_fp);
if (pstate > cpudata->pstate.max_pstate)
vid = cpudata->vid.turbo;
@@ -404,6 +446,22 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate)
wrmsrl(MSR_IA32_PERF_CTL, val);
}
+#define BYT_BCLK_FREQS 5
+static int byt_freq_table[BYT_BCLK_FREQS] = { 833, 1000, 1333, 1167, 800};
+
+static int byt_get_scaling(void)
+{
+ u64 value;
+ int i;
+
+ rdmsrl(MSR_FSB_FREQ, value);
+ i = value & 0x3;
+
+ BUG_ON(i > BYT_BCLK_FREQS);
+
+ return byt_freq_table[i] * 100;
+}
+
static void byt_get_vid(struct cpudata *cpudata)
{
u64 value;
@@ -449,6 +507,11 @@ static int core_get_turbo_pstate(void)
return ret;
}
+static inline int core_get_scaling(void)
+{
+ return 100000;
+}
+
static void core_set_pstate(struct cpudata *cpudata, int pstate)
{
u64 val;
@@ -473,6 +536,7 @@ static struct cpu_defaults core_params = {
.get_max = core_get_max_pstate,
.get_min = core_get_min_pstate,
.get_turbo = core_get_turbo_pstate,
+ .get_scaling = core_get_scaling,
.set = core_set_pstate,
},
};
@@ -491,6 +555,7 @@ static struct cpu_defaults byt_params = {
.get_min = byt_get_min_pstate,
.get_turbo = byt_get_turbo_pstate,
.set = byt_set_pstate,
+ .get_scaling = byt_get_scaling,
.get_vid = byt_get_vid,
},
};
@@ -501,7 +566,7 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max)
int max_perf_adj;
int min_perf;
- if (limits.no_turbo)
+ if (limits.no_turbo || limits.turbo_disabled)
max_perf = cpu->pstate.max_pstate;
max_perf_adj = fp_toint(mul_fp(int_tofp(max_perf), limits.max_perf));
@@ -516,6 +581,8 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
{
int max_perf, min_perf;
+ update_turbo_state();
+
intel_pstate_get_min_max(cpu, &min_perf, &max_perf);
pstate = clamp_t(int, pstate, min_perf, max_perf);
@@ -523,7 +590,7 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
if (pstate == cpu->pstate.current_pstate)
return;
- trace_cpu_frequency(pstate * 100000, cpu->cpu);
+ trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu);
cpu->pstate.current_pstate = pstate;
@@ -535,6 +602,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
cpu->pstate.min_pstate = pstate_funcs.get_min();
cpu->pstate.max_pstate = pstate_funcs.get_max();
cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
+ cpu->pstate.scaling = pstate_funcs.get_scaling();
if (pstate_funcs.get_vid)
pstate_funcs.get_vid(cpu);
@@ -550,7 +618,9 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu)
core_pct = div64_u64(core_pct, int_tofp(sample->mperf));
sample->freq = fp_toint(
- mul_fp(int_tofp(cpu->pstate.max_pstate * 1000), core_pct));
+ mul_fp(int_tofp(
+ cpu->pstate.max_pstate * cpu->pstate.scaling / 100),
+ core_pct));
sample->core_pct_busy = (int32_t)core_pct;
}
@@ -671,7 +741,9 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
{
struct cpudata *cpu;
- all_cpu_data[cpunum] = kzalloc(sizeof(struct cpudata), GFP_KERNEL);
+ if (!all_cpu_data[cpunum])
+ all_cpu_data[cpunum] = kzalloc(sizeof(struct cpudata),
+ GFP_KERNEL);
if (!all_cpu_data[cpunum])
return -ENOMEM;
@@ -714,9 +786,10 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
limits.min_perf_pct = 100;
limits.min_perf = int_tofp(1);
+ limits.max_policy_pct = 100;
limits.max_perf_pct = 100;
limits.max_perf = int_tofp(1);
- limits.no_turbo = limits.turbo_disabled;
+ limits.no_turbo = 0;
return 0;
}
limits.min_perf_pct = (policy->min * 100) / policy->cpuinfo.max_freq;
@@ -751,15 +824,12 @@ static void intel_pstate_stop_cpu(struct cpufreq_policy *policy)
del_timer_sync(&all_cpu_data[cpu_num]->timer);
intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
- kfree(all_cpu_data[cpu_num]);
- all_cpu_data[cpu_num] = NULL;
}
static int intel_pstate_cpu_init(struct cpufreq_policy *policy)
{
struct cpudata *cpu;
int rc;
- u64 misc_en;
rc = intel_pstate_init_cpu(policy->cpu);
if (rc)
@@ -767,23 +837,18 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy)
cpu = all_cpu_data[policy->cpu];
- rdmsrl(MSR_IA32_MISC_ENABLE, misc_en);
- if (misc_en & MSR_IA32_MISC_ENABLE_TURBO_DISABLE ||
- cpu->pstate.max_pstate == cpu->pstate.turbo_pstate) {
- limits.turbo_disabled = 1;
- limits.no_turbo = 1;
- }
if (limits.min_perf_pct == 100 && limits.max_perf_pct == 100)
policy->policy = CPUFREQ_POLICY_PERFORMANCE;
else
policy->policy = CPUFREQ_POLICY_POWERSAVE;
- policy->min = cpu->pstate.min_pstate * 100000;
- policy->max = cpu->pstate.turbo_pstate * 100000;
+ policy->min = cpu->pstate.min_pstate * cpu->pstate.scaling;
+ policy->max = cpu->pstate.turbo_pstate * cpu->pstate.scaling;
/* cpuinfo and default policy values */
- policy->cpuinfo.min_freq = cpu->pstate.min_pstate * 100000;
- policy->cpuinfo.max_freq = cpu->pstate.turbo_pstate * 100000;
+ policy->cpuinfo.min_freq = cpu->pstate.min_pstate * cpu->pstate.scaling;
+ policy->cpuinfo.max_freq =
+ cpu->pstate.turbo_pstate * cpu->pstate.scaling;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
cpumask_set_cpu(policy->cpu, policy->cpus);
@@ -841,6 +906,7 @@ static void copy_cpu_funcs(struct pstate_funcs *funcs)
pstate_funcs.get_max = funcs->get_max;
pstate_funcs.get_min = funcs->get_min;
pstate_funcs.get_turbo = funcs->get_turbo;
+ pstate_funcs.get_scaling = funcs->get_scaling;
pstate_funcs.set = funcs->set;
pstate_funcs.get_vid = funcs->get_vid;
}
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index a64be578dab2..7d3a3497dd4c 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -163,7 +163,8 @@ static int powernv_add_idle_states(void)
int nr_idle_states = 1; /* Snooze */
int dt_idle_states;
const __be32 *idle_state_flags;
- u32 len_flags, flags;
+ const __be32 *idle_state_latency;
+ u32 len_flags, flags, latency_ns;
int i;
/* Currently we have snooze statically defined */
@@ -180,18 +181,32 @@ static int powernv_add_idle_states(void)
return nr_idle_states;
}
+ idle_state_latency = of_get_property(power_mgt,
+ "ibm,cpu-idle-state-latencies-ns", NULL);
+ if (!idle_state_latency) {
+ pr_warn("DT-PowerMgmt: missing ibm,cpu-idle-state-latencies-ns\n");
+ return nr_idle_states;
+ }
+
dt_idle_states = len_flags / sizeof(u32);
for (i = 0; i < dt_idle_states; i++) {
flags = be32_to_cpu(idle_state_flags[i]);
+
+ /* Cpuidle accepts exit_latency in us and we estimate
+ * target residency to be 10x exit_latency
+ */
+ latency_ns = be32_to_cpu(idle_state_latency[i]);
if (flags & IDLE_USE_INST_NAP) {
/* Add NAP state */
strcpy(powernv_states[nr_idle_states].name, "Nap");
strcpy(powernv_states[nr_idle_states].desc, "Nap");
powernv_states[nr_idle_states].flags = CPUIDLE_FLAG_TIME_VALID;
- powernv_states[nr_idle_states].exit_latency = 10;
- powernv_states[nr_idle_states].target_residency = 100;
+ powernv_states[nr_idle_states].exit_latency =
+ ((unsigned int)latency_ns) / 1000;
+ powernv_states[nr_idle_states].target_residency =
+ ((unsigned int)latency_ns / 100);
powernv_states[nr_idle_states].enter = &nap_loop;
nr_idle_states++;
}
@@ -202,8 +217,10 @@ static int powernv_add_idle_states(void)
strcpy(powernv_states[nr_idle_states].desc, "FastSleep");
powernv_states[nr_idle_states].flags =
CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TIMER_STOP;
- powernv_states[nr_idle_states].exit_latency = 300;
- powernv_states[nr_idle_states].target_residency = 1000000;
+ powernv_states[nr_idle_states].exit_latency =
+ ((unsigned int)latency_ns) / 1000;
+ powernv_states[nr_idle_states].target_residency =
+ ((unsigned int)latency_ns / 100);
powernv_states[nr_idle_states].enter = &fastsleep_loop;
nr_idle_states++;
}
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index a9f9c46e5022..63fc63911295 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -397,6 +397,7 @@ static int pcie_pme_suspend(struct pcie_device *srv)
struct pcie_pme_service_data *data = get_service_data(srv);
struct pci_dev *port = srv->port;
bool wakeup;
+ int ret;
if (device_may_wakeup(&port->dev)) {
wakeup = true;
@@ -407,9 +408,10 @@ static int pcie_pme_suspend(struct pcie_device *srv)
}
spin_lock_irq(&data->lock);
if (wakeup) {
- enable_irq_wake(srv->irq);
+ ret = enable_irq_wake(srv->irq);
data->suspend_level = PME_SUSPEND_WAKEUP;
- } else {
+ }
+ if (!wakeup || ret) {
struct pci_dev *port = srv->port;
pcie_pme_interrupt_enable(port, false);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-15 19:42:05 +0300