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PCI: Rename _DSM constants to align with spec

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Rename PCI-related _DSM constants to align them with the PCI Firmware Spec,
r3.2, sec 4.6.  No functional change intended.

Link: https://lore.kernel.org/r/20200526213905.2479381-1-kw@linux.com
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Krzysztof Wilczyński 2020-05-26 21:39:05 +00:00 committed by Bjorn Helgaas
parent 5dda3ba6fc
commit 3910ebaca8
4 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/pci_root.c
View File

@ -938,7 +938,7 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
* assignments made by firmware for this host bridge.
*/
obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 1,
IGNORE_PCI_BOOT_CONFIG_DSM, NULL);
DSM_PCI_PRESERVE_BOOT_CONFIG, NULL);
if (obj && obj->type == ACPI_TYPE_INTEGER && obj->integer.value == 0)
host_bridge->preserve_config = 1;
ACPI_FREE(obj);

4
drivers/pci/pci-acpi.c
View File

@ -1128,7 +1128,7 @@ void acpi_pci_add_bus(struct pci_bus *bus)
return;
obj = acpi_evaluate_dsm(ACPI_HANDLE(bus->bridge), &pci_acpi_dsm_guid, 3,
RESET_DELAY_DSM, NULL);
DSM_PCI_POWER_ON_RESET_DELAY, NULL);
if (!obj)
return;
@ -1193,7 +1193,7 @@ static void pci_acpi_optimize_delay(struct pci_dev *pdev,
pdev->d3cold_delay = 0;
obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 3,
FUNCTION_DELAY_DSM, NULL);
DSM_PCI_DEVICE_READINESS_DURATIONS, NULL);
if (!obj)
return;

4
drivers/pci/pci-label.c
View File

@ -178,7 +178,7 @@ static int dsm_get_label(struct device *dev, char *buf,
return -1;
obj = acpi_evaluate_dsm(handle, &pci_acpi_dsm_guid, 0x2,
DEVICE_LABEL_DSM, NULL);
DSM_PCI_DEVICE_NAME, NULL);
if (!obj)
return -1;
@ -218,7 +218,7 @@ static bool device_has_dsm(struct device *dev)
return false;
return !!acpi_check_dsm(handle, &pci_acpi_dsm_guid, 0x2,
1 << DEVICE_LABEL_DSM);
1 << DSM_PCI_DEVICE_NAME);
}
static umode_t acpi_index_string_exist(struct kobject *kobj,

10
include/linux/pci-acpi.h
View File

@ -107,10 +107,12 @@ static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
#endif
extern const guid_t pci_acpi_dsm_guid;
#define IGNORE_PCI_BOOT_CONFIG_DSM 0x05
#define DEVICE_LABEL_DSM 0x07
#define RESET_DELAY_DSM 0x08
#define FUNCTION_DELAY_DSM 0x09
/* _DSM Definitions for PCI */
#define DSM_PCI_PRESERVE_BOOT_CONFIG 0x05
#define DSM_PCI_DEVICE_NAME 0x07
#define DSM_PCI_POWER_ON_RESET_DELAY 0x08
#define DSM_PCI_DEVICE_READINESS_DURATIONS 0x09
#ifdef CONFIG_PCIE_EDR
void pci_acpi_add_edr_notifier(struct pci_dev *pdev);