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Merge branches 'acpi-scan', 'acpi-pm', 'acpi-resource' and 'acpi-ec'

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Merge ACPI device enumeration changes, ACPI power management update,
ACPI resources management updates and an EC driver update for 6.5-rc1:

 - Reduce ACPI device enumeration overhead related to devices with
   dependencies (Rafael Wysocki).

 - Fix the handling of Microsoft LPS0 _DSM for suspend-to-idle (Mario
   Limonciello).

 - Fix section mismatch warning in the ACPI suspend-to-idle code (Arnd
   Bergmann).

 - Drop several ACPI resource management quirks related to IRQ ovverides
   on AMD "Zen" systems (Mario Limonciello).

 - Modify the ACPI EC driver to make it only clear the EC GPE status
   when handling the GPE (Jeremy Compostella).

* acpi-scan:
  ACPI: scan: Reduce overhead related to devices with dependencies

* acpi-pm:
  ACPI: x86: s2idle: Adjust Microsoft LPS0 _DSM handling sequence
  ACPI: PM: s2idle: fix section mismatch warning

* acpi-resource:
  ACPI: resource: Remove "Zen" specific match and quirks

* acpi-ec:
  ACPI: EC: Clear GPE on interrupt handling only
This commit is contained in:
Rafael J. Wysocki 2023-06-26 16:54:10 +02:00
commit 87b5374b49
6 changed files with 87 additions and 103 deletions
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31
drivers/acpi/ec.c
View file

@ -662,21 +662,6 @@ static void advance_transaction(struct acpi_ec *ec, bool interrupt)
ec_dbg_stm("%s (%d)", interrupt ? "IRQ" : "TASK", smp_processor_id());
/*
* Clear GPE_STS upfront to allow subsequent hardware GPE_STS 0->1
* changes to always trigger a GPE interrupt.
*
* GPE STS is a W1C register, which means:
*
* 1. Software can clear it without worrying about clearing the other
* GPEs' STS bits when the hardware sets them in parallel.
*
* 2. As long as software can ensure only clearing it when it is set,
* hardware won't set it in parallel.
*/
if (ec->gpe >= 0 && acpi_ec_gpe_status_set(ec))
acpi_clear_gpe(NULL, ec->gpe);
status = acpi_ec_read_status(ec);
/*
@ -1287,6 +1272,22 @@ static void acpi_ec_handle_interrupt(struct acpi_ec *ec)
unsigned long flags;
spin_lock_irqsave(&ec->lock, flags);
/*
* Clear GPE_STS upfront to allow subsequent hardware GPE_STS 0->1
* changes to always trigger a GPE interrupt.
*
* GPE STS is a W1C register, which means:
*
* 1. Software can clear it without worrying about clearing the other
* GPEs' STS bits when the hardware sets them in parallel.
*
* 2. As long as software can ensure only clearing it when it is set,
* hardware won't set it in parallel.
*/
if (ec->gpe >= 0 && acpi_ec_gpe_status_set(ec))
acpi_clear_gpe(NULL, ec->gpe);
advance_transaction(ec, true);
spin_unlock_irqrestore(&ec->lock, flags);
}

60
drivers/acpi/resource.c
View file

@ -470,52 +470,6 @@ static const struct dmi_system_id asus_laptop[] = {
{ }
};
static const struct dmi_system_id lenovo_laptop[] = {
{
.ident = "LENOVO IdeaPad Flex 5 14ALC7",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_NAME, "82R9"),
},
},
{
.ident = "LENOVO IdeaPad Flex 5 16ALC7",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_NAME, "82RA"),
},
},
{ }
};
static const struct dmi_system_id tongfang_gm_rg[] = {
{
.ident = "TongFang GMxRGxx/XMG CORE 15 (M22)/TUXEDO Stellaris 15 Gen4 AMD",
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "GMxRGxx"),
},
},
{ }
};
static const struct dmi_system_id maingear_laptop[] = {
{
.ident = "MAINGEAR Vector Pro 2 15",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics Inc"),
DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-15A3070T"),
}
},
{
.ident = "MAINGEAR Vector Pro 2 17",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro Electronics Inc"),
DMI_MATCH(DMI_PRODUCT_NAME, "MG-VCP2-17A3070T"),
},
},
{ }
};
static const struct dmi_system_id lg_laptop[] = {
{
.ident = "LG Electronics 17U70P",
@ -539,10 +493,6 @@ struct irq_override_cmp {
static const struct irq_override_cmp override_table[] = {
{ medion_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false },
{ asus_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false },
{ lenovo_laptop, 6, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, true },
{ lenovo_laptop, 10, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, true },
{ tongfang_gm_rg, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1, true },
{ maingear_laptop, 1, ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_LOW, 1, true },
{ lg_laptop, 1, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW, 0, false },
};
@ -562,16 +512,6 @@ static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
return entry->override;
}
#ifdef CONFIG_X86
/*
* IRQ override isn't needed on modern AMD Zen systems and
* this override breaks active low IRQs on AMD Ryzen 6000 and
* newer systems. Skip it.
*/
if (boot_cpu_has(X86_FEATURE_ZEN))
return false;
#endif
return true;
}

81
drivers/acpi/scan.c
View file

@ -2029,8 +2029,6 @@ static u32 acpi_scan_check_dep(acpi_handle handle, bool check_dep)
return count;
}
static bool acpi_bus_scan_second_pass;
static acpi_status acpi_bus_check_add(acpi_handle handle, bool check_dep,
struct acpi_device **adev_p)
{
@ -2050,10 +2048,8 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, bool check_dep,
return AE_OK;
/* Bail out if there are dependencies. */
if (acpi_scan_check_dep(handle, check_dep) > 0) {
acpi_bus_scan_second_pass = true;
if (acpi_scan_check_dep(handle, check_dep) > 0)
return AE_CTRL_DEPTH;
}
fallthrough;
case ACPI_TYPE_ANY: /* for ACPI_ROOT_OBJECT */
@ -2301,6 +2297,12 @@ static bool acpi_scan_clear_dep_queue(struct acpi_device *adev)
return true;
}
static void acpi_scan_delete_dep_data(struct acpi_dep_data *dep)
{
list_del(&dep->node);
kfree(dep);
}
static int acpi_scan_clear_dep(struct acpi_dep_data *dep, void *data)
{
struct acpi_device *adev = acpi_get_acpi_dev(dep->consumer);
@ -2311,8 +2313,10 @@ static int acpi_scan_clear_dep(struct acpi_dep_data *dep, void *data)
acpi_dev_put(adev);
}
list_del(&dep->node);
kfree(dep);
if (dep->free_when_met)
acpi_scan_delete_dep_data(dep);
else
dep->met = true;
return 0;
}
@ -2406,6 +2410,55 @@ struct acpi_device *acpi_dev_get_next_consumer_dev(struct acpi_device *supplier,
}
EXPORT_SYMBOL_GPL(acpi_dev_get_next_consumer_dev);
static void acpi_scan_postponed_branch(acpi_handle handle)
{
struct acpi_device *adev = NULL;
if (ACPI_FAILURE(acpi_bus_check_add(handle, false, &adev)))
return;
acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
acpi_bus_check_add_2, NULL, NULL, (void **)&adev);
acpi_bus_attach(adev, NULL);
}
static void acpi_scan_postponed(void)
{
struct acpi_dep_data *dep, *tmp;
mutex_lock(&acpi_dep_list_lock);
list_for_each_entry_safe(dep, tmp, &acpi_dep_list, node) {
acpi_handle handle = dep->consumer;
/*
* In case there are multiple acpi_dep_list entries with the
* same consumer, skip the current entry if the consumer device
* object corresponding to it is present already.
*/
if (!acpi_fetch_acpi_dev(handle)) {
/*
* Even though the lock is released here, tmp is
* guaranteed to be valid, because none of the list
* entries following dep is marked as "free when met"
* and so they cannot be deleted.
*/
mutex_unlock(&acpi_dep_list_lock);
acpi_scan_postponed_branch(handle);
mutex_lock(&acpi_dep_list_lock);
}
if (dep->met)
acpi_scan_delete_dep_data(dep);
else
dep->free_when_met = true;
}
mutex_unlock(&acpi_dep_list_lock);
}
/**
* acpi_bus_scan - Add ACPI device node objects in a given namespace scope.
* @handle: Root of the namespace scope to scan.
@ -2424,8 +2477,6 @@ int acpi_bus_scan(acpi_handle handle)
{
struct acpi_device *device = NULL;
acpi_bus_scan_second_pass = false;
/* Pass 1: Avoid enumerating devices with missing dependencies. */
if (ACPI_SUCCESS(acpi_bus_check_add(handle, true, &device)))
@ -2438,19 +2489,9 @@ int acpi_bus_scan(acpi_handle handle)
acpi_bus_attach(device, (void *)true);
if (!acpi_bus_scan_second_pass)
return 0;
/* Pass 2: Enumerate all of the remaining devices. */
device = NULL;
if (ACPI_SUCCESS(acpi_bus_check_add(handle, false, &device)))
acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
acpi_bus_check_add_2, NULL, NULL,
(void **)&device);
acpi_bus_attach(device, NULL);
acpi_scan_postponed();
return 0;
}

2
drivers/acpi/sleep.c
View file

@ -848,7 +848,7 @@ void __weak acpi_s2idle_setup(void)
s2idle_set_ops(&acpi_s2idle_ops);
}
static void acpi_sleep_suspend_setup(void)
static void __init acpi_sleep_suspend_setup(void)
{
bool suspend_ops_needed = false;
int i;

14
drivers/acpi/x86/s2idle.c
View file

@ -485,11 +485,11 @@ int acpi_s2idle_prepare_late(void)
ACPI_LPS0_ENTRY,
lps0_dsm_func_mask, lps0_dsm_guid);
if (lps0_dsm_func_mask_microsoft > 0) {
acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
/* modern standby entry */
acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
}
list_for_each_entry(handler, &lps0_s2idle_devops_head, list_node) {
@ -524,11 +524,6 @@ void acpi_s2idle_restore_early(void)
if (handler->restore)
handler->restore();
/* Modern standby exit */
if (lps0_dsm_func_mask_microsoft > 0)
acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT,
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
/* LPS0 exit */
if (lps0_dsm_func_mask > 0)
acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
@ -539,6 +534,11 @@ void acpi_s2idle_restore_early(void)
acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
/* Modern standby exit */
if (lps0_dsm_func_mask_microsoft > 0)
acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT,
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
/* Screen on */
if (lps0_dsm_func_mask_microsoft > 0)
acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,

2
include/acpi/acpi_bus.h
View file

@ -289,6 +289,8 @@ struct acpi_dep_data {
acpi_handle supplier;
acpi_handle consumer;
bool honor_dep;
bool met;
bool free_when_met;
};
/* Performance Management */