1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef MFD_INTEL_PMC_BXT_H
3#define MFD_INTEL_PMC_BXT_H
4
5/* GCR reg offsets from GCR base */
6#define PMC_GCR_PMC_CFG_REG 0x08
7#define PMC_GCR_TELEM_DEEP_S0IX_REG 0x78
8#define PMC_GCR_TELEM_SHLW_S0IX_REG 0x80
9
10/* PMC_CFG_REG bit masks */
11#define PMC_CFG_NO_REBOOT_EN BIT(4)
12
13/**
14 * struct intel_pmc_dev - Intel PMC device structure
15 * @dev: Pointer to the parent PMC device
16 * @scu: Pointer to the SCU IPC device data structure
17 * @gcr_mem_base: Virtual base address of GCR (Global Configuration Registers)
18 * @gcr_lock: Lock used to serialize access to GCR registers
19 * @telem_base: Pointer to telemetry SSRAM base resource or %NULL if not
20 * available
21 */
22struct intel_pmc_dev {
23 struct device *dev;
24 struct intel_scu_ipc_dev *scu;
25 void __iomem *gcr_mem_base;
26 spinlock_t gcr_lock;
27 struct resource *telem_base;
28};
29
30#if IS_ENABLED(CONFIG_MFD_INTEL_PMC_BXT)
31int intel_pmc_gcr_read64(struct intel_pmc_dev *pmc, u32 offset, u64 *data);
32int intel_pmc_gcr_update(struct intel_pmc_dev *pmc, u32 offset, u32 mask, u32 val);
33int intel_pmc_s0ix_counter_read(struct intel_pmc_dev *pmc, u64 *data);
34#else
35static inline int intel_pmc_gcr_read64(struct intel_pmc_dev *pmc, u32 offset,
36 u64 *data)
37{
38 return -ENOTSUPP;
39}
40
41static inline int intel_pmc_gcr_update(struct intel_pmc_dev *pmc, u32 offset,
42 u32 mask, u32 val)
43{
44 return -ENOTSUPP;
45}
46
47static inline int intel_pmc_s0ix_counter_read(struct intel_pmc_dev *pmc, u64 *data)
48{
49 return -ENOTSUPP;
50}
51#endif
52
53#endif /* MFD_INTEL_PMC_BXT_H */
54

source code of linux/include/linux/mfd/intel_pmc_bxt.h