forked from Minki/linux
PCI: Make a shareable UUID for PCI firmware ACPI _DSM
The PCI Firmware Specification, r3.0, sec 4.6.4.1.3, defines a single UUID for an ACPI _DSM method to provide device-specific control functions. This _DSM method support several functions, including PCI Express Slot Information, PCI Express Slot Number, PCI Bus Capabilities, etc. Move the UUID definition from pci/pci-label.c, where it could be used only for one function, to pci/pci-acpi.c where it can be shared for all these functions. [bhelgaas: changelog] Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
parent
c89ac44330
commit
18e94a3384
@ -18,6 +18,15 @@
|
||||
#include <linux/pm_qos.h>
|
||||
#include "pci.h"
|
||||
|
||||
/*
|
||||
* The UUID is defined in the PCI Firmware Specification available here:
|
||||
* https://www.pcisig.com/members/downloads/pcifw_r3_1_13Dec10.pdf
|
||||
*/
|
||||
const u8 pci_acpi_dsm_uuid[] = {
|
||||
0xd0, 0x37, 0xc9, 0xe5, 0x53, 0x35, 0x7a, 0x4d,
|
||||
0x91, 0x17, 0xea, 0x4d, 0x19, 0xc3, 0x43, 0x4d
|
||||
};
|
||||
|
||||
phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle)
|
||||
{
|
||||
acpi_status status = AE_NOT_EXIST;
|
||||
|
@ -31,8 +31,6 @@
|
||||
#include <linux/pci-acpi.h>
|
||||
#include "pci.h"
|
||||
|
||||
#define DEVICE_LABEL_DSM 0x07
|
||||
|
||||
#ifdef CONFIG_DMI
|
||||
enum smbios_attr_enum {
|
||||
SMBIOS_ATTR_NONE = 0,
|
||||
@ -148,11 +146,6 @@ static inline void pci_remove_smbiosname_file(struct pci_dev *pdev)
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
static const char device_label_dsm_uuid[] = {
|
||||
0xD0, 0x37, 0xC9, 0xE5, 0x53, 0x35, 0x7A, 0x4D,
|
||||
0x91, 0x17, 0xEA, 0x4D, 0x19, 0xC3, 0x43, 0x4D
|
||||
};
|
||||
|
||||
enum acpi_attr_enum {
|
||||
ACPI_ATTR_LABEL_SHOW,
|
||||
ACPI_ATTR_INDEX_SHOW,
|
||||
@ -179,7 +172,7 @@ static int dsm_get_label(struct device *dev, char *buf,
|
||||
if (!handle)
|
||||
return -1;
|
||||
|
||||
obj = acpi_evaluate_dsm(handle, device_label_dsm_uuid, 0x2,
|
||||
obj = acpi_evaluate_dsm(handle, pci_acpi_dsm_uuid, 0x2,
|
||||
DEVICE_LABEL_DSM, NULL);
|
||||
if (!obj)
|
||||
return -1;
|
||||
@ -219,7 +212,7 @@ static bool device_has_dsm(struct device *dev)
|
||||
if (!handle)
|
||||
return false;
|
||||
|
||||
return !!acpi_check_dsm(handle, device_label_dsm_uuid, 0x2,
|
||||
return !!acpi_check_dsm(handle, pci_acpi_dsm_uuid, 0x2,
|
||||
1 << DEVICE_LABEL_DSM);
|
||||
}
|
||||
|
||||
|
@ -77,6 +77,9 @@ static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
|
||||
static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
|
||||
#endif
|
||||
|
||||
extern const u8 pci_acpi_dsm_uuid[];
|
||||
#define DEVICE_LABEL_DSM 0x07
|
||||
|
||||
#else /* CONFIG_ACPI */
|
||||
static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
|
||||
static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
|
||||
|
Loading…
Reference in New Issue
Block a user