diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2017-08-02 19:22:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-28 17:05:48 +0300 |
| commit | 6f6ab4fce56bbb0385d3d2d62d8c9f688618d5ac (patch) | |
| tree | 3690e46baa89428d03baf7c9e3fc493ec6435177 /drivers/hwtracing/coresight/coresight-tmc.h | |
| parent | 47675f6a46ff3106f86f97907f59542e3c5aa289 (diff) | |
| download | linux-6f6ab4fce56bbb0385d3d2d62d8c9f688618d5ac.tar.xz | |
coresight tmc: Add helpers for accessing 64bit registers
Coresight TMC splits 64bit registers into a pair of 32bit registers
(e.g DBA, RRP, RWP). Provide helpers to read/write to these registers.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h index 51c01851533e..c4ff23336e76 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.h +++ b/drivers/hwtracing/coresight/coresight-tmc.h @@ -139,4 +139,22 @@ extern const struct coresight_ops tmc_etf_cs_ops; int tmc_read_prepare_etr(struct tmc_drvdata *drvdata); int tmc_read_unprepare_etr(struct tmc_drvdata *drvdata); extern const struct coresight_ops tmc_etr_cs_ops; + + +#define TMC_REG_PAIR(name, lo_off, hi_off) \ +static inline u64 \ +tmc_read_##name(struct tmc_drvdata *drvdata) \ +{ \ + return coresight_read_reg_pair(drvdata->base, lo_off, hi_off); \ +} \ +static inline void \ +tmc_write_##name(struct tmc_drvdata *drvdata, u64 val) \ +{ \ + coresight_write_reg_pair(drvdata->base, val, lo_off, hi_off); \ +} + +TMC_REG_PAIR(rrp, TMC_RRP, TMC_RRPHI) +TMC_REG_PAIR(rwp, TMC_RWP, TMC_RWPHI) +TMC_REG_PAIR(dba, TMC_DBALO, TMC_DBAHI) + #endif |