672e844692
The object pointed to by the struct device * argument is not modified, therefore it can be made const. Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I300d2a59eb0513ddd08d4f1d2a3c6eb829e3f836 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61214 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
#ifndef DEVICE_PCIEXP_H
|
|
#define DEVICE_PCIEXP_H
|
|
/* (c) 2005 Linux Networx GPL see COPYING for details */
|
|
|
|
enum aspm_type {
|
|
PCIE_ASPM_NONE = 0,
|
|
PCIE_ASPM_L0S = 1,
|
|
PCIE_ASPM_L1 = 2,
|
|
PCIE_ASPM_BOTH = 3,
|
|
};
|
|
|
|
#define ASPM_LTR_L12_THRESHOLD_VALUE_OFFSET 16
|
|
#define ASPM_LTR_L12_THRESHOLD_VALUE_MASK (0x3ff << ASPM_LTR_L12_THRESHOLD_VALUE_OFFSET)
|
|
#define ASPM_LTR_L12_THRESHOLD_SCALE_OFFSET 29
|
|
#define ASPM_LTR_L12_THRESHOLD_SCALE_MASK (0x7 << ASPM_LTR_L12_THRESHOLD_SCALE_OFFSET)
|
|
|
|
/* Latency tolerance reporting, max non-snoop latency value 3.14ms */
|
|
#define PCIE_LTR_MAX_NO_SNOOP_LATENCY_3146US 0x1003
|
|
/* Latency tolerance reporting, max snoop latency value 3.14ms */
|
|
#define PCIE_LTR_MAX_SNOOP_LATENCY_3146US 0x1003
|
|
|
|
void pciexp_scan_bus(struct bus *bus, unsigned int min_devfn,
|
|
unsigned int max_devfn);
|
|
|
|
void pciexp_scan_bridge(struct device *dev);
|
|
|
|
extern struct device_operations default_pciexp_ops_bus;
|
|
|
|
void pciexp_hotplug_scan_bridge(struct device *dev);
|
|
|
|
extern struct device_operations default_pciexp_hotplug_ops_bus;
|
|
|
|
unsigned int pciexp_find_extended_cap(const struct device *dev, unsigned int cap);
|
|
|
|
static inline bool pciexp_is_downstream_port(int type)
|
|
{
|
|
return type == PCI_EXP_TYPE_ROOT_PORT ||
|
|
type == PCI_EXP_TYPE_DOWNSTREAM ||
|
|
type == PCI_EXP_TYPE_PCIE_BRIDGE;
|
|
}
|
|
|
|
bool pciexp_get_ltr_max_latencies(struct device *dev, u16 *max_snoop, u16 *max_nosnoop);
|
|
|
|
#endif /* DEVICE_PCIEXP_H */
|