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ACPI fixes for 6.10-rc4

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- Make the ACPI EC driver directly evaluate an "orphan" _REG method
    under the EC device, if present, which stopped being evaluated after
    the driver had started to install its EC address space handler at the
    root of the ACPI namespace (Rafael Wysocki).
 
  - Make more devices put NVMe storage devices into D3 at suspend to work
    around missing StorageD3Enable _DSD in the BIOS (Mario Limonciello).
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Merge tag 'acpi-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix a recent regression in the ACPI EC driver and make system
  suspend work on multiple platforms where StorageD3Enable _DSD is
  missing in the ACPI tables.

  Specifics:

   - Make the ACPI EC driver directly evaluate an "orphan" _REG method
     under the EC device, if present, which stopped being evaluated
     after the driver had started to install its EC address space
     handler at the root of the ACPI namespace (Rafael Wysocki)

   - Make more devices put NVMe storage devices into D3 at suspend to
     work around missing StorageD3Enable _DSD in the BIOS (Mario
     Limonciello)"

* tag 'acpi-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Evaluate orphan _REG under EC device
  ACPI: x86: Force StorageD3Enable on more products
This commit is contained in:
Linus Torvalds 2024-06-14 09:39:14 -07:00
commit 94df82fe5b
6 changed files with 76 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/acpi/acpica/acevents.h
View File

@ -191,6 +191,10 @@ void
acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
acpi_adr_space_type space_id, u32 function);
void
acpi_ev_execute_orphan_reg_method(struct acpi_namespace_node *node,
acpi_adr_space_type space_id);
acpi_status
acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function);

6
drivers/acpi/acpica/evregion.c
View File

@ -20,10 +20,6 @@ extern u8 acpi_gbl_default_address_spaces[];
/* Local prototypes */
static void
acpi_ev_execute_orphan_reg_method(struct acpi_namespace_node *device_node,
acpi_adr_space_type space_id);
static acpi_status
acpi_ev_reg_run(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
@ -818,7 +814,7 @@ acpi_ev_reg_run(acpi_handle obj_handle,
*
******************************************************************************/
static void
void
acpi_ev_execute_orphan_reg_method(struct acpi_namespace_node *device_node,
acpi_adr_space_type space_id)
{

54
drivers/acpi/acpica/evxfregn.c
View File

@ -306,3 +306,57 @@ acpi_execute_reg_methods(acpi_handle device, acpi_adr_space_type space_id)
}
ACPI_EXPORT_SYMBOL(acpi_execute_reg_methods)
/*******************************************************************************
*
* FUNCTION: acpi_execute_orphan_reg_method
*
* PARAMETERS: device - Handle for the device
* space_id - The address space ID
*
* RETURN: Status
*
* DESCRIPTION: Execute an "orphan" _REG method that appears under an ACPI
* device. This is a _REG method that has no corresponding region
* within the device's scope.
*
******************************************************************************/
acpi_status
acpi_execute_orphan_reg_method(acpi_handle device, acpi_adr_space_type space_id)
{
struct acpi_namespace_node *node;
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_execute_orphan_reg_method);
/* Parameter validation */
if (!device) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Convert and validate the device handle */
node = acpi_ns_validate_handle(device);
if (node) {
/*
* If an "orphan" _REG method is present in the device's scope
* for the given address space ID, run it.
*/
acpi_ev_execute_orphan_reg_method(node, space_id);
} else {
status = AE_BAD_PARAMETER;
}
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_execute_orphan_reg_method)

3
drivers/acpi/ec.c
View File

@ -1507,6 +1507,9 @@ static int ec_install_handlers(struct acpi_ec *ec, struct acpi_device *device,
if (call_reg && !test_bit(EC_FLAGS_EC_REG_CALLED, &ec->flags)) {
acpi_execute_reg_methods(scope_handle, ACPI_ADR_SPACE_EC);
if (scope_handle != ec->handle)
acpi_execute_orphan_reg_method(ec->handle, ACPI_ADR_SPACE_EC);
set_bit(EC_FLAGS_EC_REG_CALLED, &ec->flags);
}

24
drivers/acpi/x86/utils.c
View File

@ -206,16 +206,16 @@ bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *s
}
/*
* AMD systems from Renoir and Lucienne *require* that the NVME controller
* AMD systems from Renoir onwards *require* that the NVME controller
* is put into D3 over a Modern Standby / suspend-to-idle cycle.
*
* This is "typically" accomplished using the `StorageD3Enable`
* property in the _DSD that is checked via the `acpi_storage_d3` function
* but this property was introduced after many of these systems launched
* and most OEM systems don't have it in their BIOS.
* but some OEM systems still don't have it in their BIOS.
*
* The Microsoft documentation for StorageD3Enable mentioned that Windows has
* a hardcoded allowlist for D3 support, which was used for these platforms.
* a hardcoded allowlist for D3 support as well as a registry key to override
* the BIOS, which has been used for these cases.
*
* This allows quirking on Linux in a similar fashion.
*
@ -228,19 +228,15 @@ bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *s
* https://bugzilla.kernel.org/show_bug.cgi?id=216773
* https://bugzilla.kernel.org/show_bug.cgi?id=217003
* 2) On at least one HP system StorageD3Enable is missing on the second NVME
disk in the system.
* disk in the system.
* 3) On at least one HP Rembrandt system StorageD3Enable is missing on the only
* NVME device.
*/
static const struct x86_cpu_id storage_d3_cpu_ids[] = {
X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 24, NULL), /* Picasso */
X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 96, NULL), /* Renoir */
X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 104, NULL), /* Lucienne */
X86_MATCH_VENDOR_FAM_MODEL(AMD, 25, 80, NULL), /* Cezanne */
{}
};
bool force_storage_d3(void)
{
return x86_match_cpu(storage_d3_cpu_ids);
if (!cpu_feature_enabled(X86_FEATURE_ZEN))
return false;
return acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0;
}
/*

4
include/acpi/acpixf.h
View File

@ -662,6 +662,10 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_execute_reg_methods(acpi_handle device,
acpi_adr_space_type
space_id))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_execute_orphan_reg_method(acpi_handle device,
acpi_adr_space_type
space_id))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_remove_address_space_handler(acpi_handle
device,