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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am65-cpts.h (1795B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/* TI K3 AM65 CPTS driver interface
      3 *
      4 * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
      5 */
      6
      7#ifndef K3_CPTS_H_
      8#define K3_CPTS_H_
      9
     10#include <linux/device.h>
     11#include <linux/of.h>
     12
     13struct am65_cpts;
     14
     15struct am65_cpts_estf_cfg {
     16	u64 ns_period;
     17	u64 ns_start;
     18};
     19
     20#if IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)
     21struct am65_cpts *am65_cpts_create(struct device *dev, void __iomem *regs,
     22				   struct device_node *node);
     23int am65_cpts_phc_index(struct am65_cpts *cpts);
     24void am65_cpts_tx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb);
     25void am65_cpts_prep_tx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb);
     26void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en);
     27u64 am65_cpts_ns_gettime(struct am65_cpts *cpts);
     28int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx,
     29			  struct am65_cpts_estf_cfg *cfg);
     30void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx);
     31#else
     32static inline struct am65_cpts *am65_cpts_create(struct device *dev,
     33						 void __iomem *regs,
     34						 struct device_node *node)
     35{
     36	return ERR_PTR(-EOPNOTSUPP);
     37}
     38
     39static inline int am65_cpts_phc_index(struct am65_cpts *cpts)
     40{
     41	return -1;
     42}
     43
     44static inline void am65_cpts_tx_timestamp(struct am65_cpts *cpts,
     45					  struct sk_buff *skb)
     46{
     47}
     48
     49static inline void am65_cpts_prep_tx_timestamp(struct am65_cpts *cpts,
     50					       struct sk_buff *skb)
     51{
     52}
     53
     54static inline void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en)
     55{
     56}
     57
     58static inline s64 am65_cpts_ns_gettime(struct am65_cpts *cpts)
     59{
     60	return 0;
     61}
     62
     63static inline int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx,
     64					struct am65_cpts_estf_cfg *cfg)
     65{
     66	return 0;
     67}
     68
     69static inline void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx)
     70{
     71}
     72#endif
     73
     74#endif /* K3_CPTS_H_ */