diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h index c4ff23336e76..13ab1008f110 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.h +++ b/drivers/hwtracing/coresight/coresight-tmc.h @@ -104,6 +104,8 @@ enum tmc_mem_intf_width { * @config_type: TMC variant, must be of type @tmc_config_type. * @memwidth: width of the memory interface databus, in bytes. * @trigger_cntr: amount of words to store after a trigger. + * @etr_caps: Bitmask of capabilities of the TMC ETR, inferred from the + * device configuration register (DEVID) */ struct tmc_drvdata { void __iomem *base; @@ -121,6 +123,7 @@ struct tmc_drvdata { enum tmc_config_type config_type; enum tmc_mem_intf_width memwidth; u32 trigger_cntr; + u32 etr_caps; }; /* Generic functions */ @@ -157,4 +160,21 @@ TMC_REG_PAIR(rrp, TMC_RRP, TMC_RRPHI) TMC_REG_PAIR(rwp, TMC_RWP, TMC_RWPHI) TMC_REG_PAIR(dba, TMC_DBALO, TMC_DBAHI) +/* Initialise the caps from unadvertised static capabilities of the device */ +static inline void tmc_etr_init_caps(struct tmc_drvdata *drvdata, u32 dev_caps) +{ + WARN_ON(drvdata->etr_caps); + drvdata->etr_caps = dev_caps; +} + +static inline void tmc_etr_set_cap(struct tmc_drvdata *drvdata, u32 cap) +{ + drvdata->etr_caps |= cap; +} + +static inline bool tmc_etr_has_cap(struct tmc_drvdata *drvdata, u32 cap) +{ + return !!(drvdata->etr_caps & cap); +} + #endif |