cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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smem_state.h (1604B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __QCOM_SMEM_STATE__
      3#define __QCOM_SMEM_STATE__
      4
      5#include <linux/err.h>
      6
      7struct device_node;
      8struct qcom_smem_state;
      9
     10struct qcom_smem_state_ops {
     11	int (*update_bits)(void *, u32, u32);
     12};
     13
     14#ifdef CONFIG_QCOM_SMEM_STATE
     15
     16struct qcom_smem_state *qcom_smem_state_get(struct device *dev, const char *con_id, unsigned *bit);
     17struct qcom_smem_state *devm_qcom_smem_state_get(struct device *dev, const char *con_id, unsigned *bit);
     18void qcom_smem_state_put(struct qcom_smem_state *);
     19
     20int qcom_smem_state_update_bits(struct qcom_smem_state *state, u32 mask, u32 value);
     21
     22struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node, const struct qcom_smem_state_ops *ops, void *data);
     23void qcom_smem_state_unregister(struct qcom_smem_state *state);
     24
     25#else
     26
     27static inline struct qcom_smem_state *qcom_smem_state_get(struct device *dev,
     28	const char *con_id, unsigned *bit)
     29{
     30	return ERR_PTR(-EINVAL);
     31}
     32
     33static inline struct qcom_smem_state *devm_qcom_smem_state_get(struct device *dev,
     34							       const char *con_id,
     35							       unsigned *bit)
     36{
     37	return ERR_PTR(-EINVAL);
     38}
     39
     40static inline void qcom_smem_state_put(struct qcom_smem_state *state)
     41{
     42}
     43
     44static inline int qcom_smem_state_update_bits(struct qcom_smem_state *state,
     45	u32 mask, u32 value)
     46{
     47	return -EINVAL;
     48}
     49
     50static inline struct qcom_smem_state *qcom_smem_state_register(struct device_node *of_node,
     51	const struct qcom_smem_state_ops *ops, void *data)
     52{
     53	return ERR_PTR(-EINVAL);
     54}
     55
     56static inline void qcom_smem_state_unregister(struct qcom_smem_state *state)
     57{
     58}
     59
     60#endif
     61
     62#endif