diff options
| author | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2017-12-13 10:54:37 +0000 |
|---|---|---|
| committer | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2018-01-11 12:27:27 +0000 |
| commit | 59902b7c4ca2413c2ee783da1bc66789e35868e5 (patch) | |
| tree | 41996e3ee54e00b237653169a37bb9552f507800 /include | |
| parent | 7593252cee8745bbf1b05deb2f4a5f742d36c412 (diff) | |
AMU: Add plat interface to select which group 1 counters to enable
A new platform macro `PLAT_AMU_GROUP1_COUNTERS_MASK` controls which
group 1 counters should be enabled. The maximum number of group 1
counters supported by AMUv1 is 16 so the mask can be at most 0xffff.
If the platform does not define this mask, no group 1 counters are
enabled.
A related platform macro `PLAT_AMU_GROUP1_NR_COUNTERS` is used by
generic code to allocate an array to save and restore the counters on
CPU suspend.
Change-Id: I6d135badf4846292de931a43bb563077f42bb47b
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/lib/extensions/amu.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/lib/extensions/amu.h b/include/lib/extensions/amu.h index bbefe8ff..2ecbea56 100644 --- a/include/lib/extensions/amu.h +++ b/include/lib/extensions/amu.h @@ -7,9 +7,28 @@ #ifndef __AMU_H__ #define __AMU_H__ -/* Enable all group 0 counters */ +#include <sys/cdefs.h> /* for CASSERT() */ +#include <cassert.h> +#include <platform_def.h> + +/* All group 0 counters */ #define AMU_GROUP0_COUNTERS_MASK 0xf +#ifdef PLAT_AMU_GROUP1_COUNTERS_MASK +#define AMU_GROUP1_COUNTERS_MASK PLAT_AMU_GROUP1_COUNTERS_MASK +#else +#define AMU_GROUP1_COUNTERS_MASK 0 +#endif + +#ifdef PLAT_AMU_GROUP1_NR_COUNTERS +#define AMU_GROUP1_NR_COUNTERS PLAT_AMU_GROUP1_NR_COUNTERS +#else +#define AMU_GROUP1_NR_COUNTERS 0 +#endif + +CASSERT(AMU_GROUP1_COUNTERS_MASK <= 0xffff, invalid_amu_group1_counters_mask); +CASSERT(AMU_GROUP1_NR_COUNTERS <= 16, invalid_amu_group1_nr_counters); + void amu_enable(int el2_unused); #endif /* __AMU_H__ */ |