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LinuxKPI: Add pci_power querying for drm-kmod

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Adds a few struct members and a function to get i915_runtime_pm_status()
to compile in drm-kmod.

Differential Revision:	https://reviews.freebsd.org/D36749
Sponsored by:   Google, Inc. (GSoC 2022)
This commit is contained in:
Jake Freeland 2022-10-06 10:15:41 +02:00 committed by Emmanuel Vadot
parent ba86cffb28
commit 4cb3cb2de2
4 changed files with 26 additions and 0 deletions
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2
sys/compat/linuxkpi/common/include/linux/device.h
View File

@ -127,6 +127,8 @@ struct device {
spinlock_t devres_lock;
struct list_head devres_head;
struct dev_pm_info power;
};
extern struct device linux_root_device;

14
sys/compat/linuxkpi/common/include/linux/pci.h
View File

@ -202,6 +202,8 @@ typedef int pci_power_t;
#define PCI_POWER_ERROR PCI_POWERSTATE_UNKNOWN
extern const char *pci_power_names[6];
#define PCI_ERR_ROOT_COMMAND PCIR_AER_ROOTERR_CMD
#define PCI_ERR_ROOT_ERR_SRC PCIR_AER_COR_SOURCE_ID
@ -288,6 +290,7 @@ struct pci_dev {
struct pci_driver *pdrv;
struct pci_bus *bus;
struct pci_dev *root;
pci_power_t current_state;
uint16_t device;
uint16_t vendor;
uint16_t subsystem_vendor;
@ -1576,6 +1579,17 @@ pci_ignore_hotplug(struct pci_dev *pdev)
{
}
static inline const char *
pci_power_name(pci_power_t state)
{
int pstate = state + 1;
if (pstate >= 0 && pstate < nitems(pci_power_names))
return (pci_power_names[pstate]);
else
return (pci_power_names[0]);
}
static inline int
pcie_get_readrq(struct pci_dev *dev)
{

6
sys/compat/linuxkpi/common/include/linux/pm.h
View File

@ -33,6 +33,8 @@
#ifndef _LINUXKPI_LINUX_PM_H
#define _LINUXKPI_LINUX_PM_H
#include <asm/atomic.h>
/* Needed but breaks linux_usb.c */
/* #include <linux/completion.h> */
/* #include <linux/wait.h> */
@ -44,6 +46,10 @@ typedef struct pm_message {
struct dev_pm_domain {
};
struct dev_pm_info {
atomic_t usage_count;
};
#define PM_EVENT_FREEZE 0x0001
#define PM_EVENT_SUSPEND 0x0002

4
sys/compat/linuxkpi/common/src/linux_pci.c
View File

@ -117,6 +117,10 @@ static device_method_t pci_methods[] = {
DEVMETHOD_END
};
const char *pci_power_names[] = {
"UNKNOWN", "D0", "D1", "D2", "D3hot", "D3cold"
};
struct linux_dma_priv {
uint64_t dma_mask;
bus_dma_tag_t dmat;