From 0767d50e699d3d9cb827172dd7742618d37aabe0 Mon Sep 17 00:00:00 2001 From: Dimitris Papastamos Date: Mon, 13 Nov 2017 09:49:45 +0000 Subject: AMU: Add configuration helpers for aarch64 Add some AMU helper functions to allow configuring, reading and writing of the Group 0 and Group 1 counters. Documentation for these helpers will come in a separate patch. Change-Id: I656e070d2dae830c22414f694aa655341d4e2c40 Signed-off-by: Dimitris Papastamos --- include/lib/extensions/amu.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/lib/extensions/amu.h') diff --git a/include/lib/extensions/amu.h b/include/lib/extensions/amu.h index 2ecbea568..faa0ee125 100644 --- a/include/lib/extensions/amu.h +++ b/include/lib/extensions/amu.h @@ -10,6 +10,7 @@ #include /* for CASSERT() */ #include #include +#include /* All group 0 counters */ #define AMU_GROUP0_COUNTERS_MASK 0xf @@ -29,6 +30,16 @@ CASSERT(AMU_GROUP1_COUNTERS_MASK <= 0xffff, invalid_amu_group1_counters_mask); CASSERT(AMU_GROUP1_NR_COUNTERS <= 16, invalid_amu_group1_nr_counters); +int amu_supported(void); void amu_enable(int el2_unused); +/* Group 0 configuration helpers */ +uint64_t amu_group0_cnt_read(int idx); +void amu_group0_cnt_write(int idx, uint64_t val); + +/* Group 1 configuration helpers */ +uint64_t amu_group1_cnt_read(int idx); +void amu_group1_cnt_write(int idx, uint64_t val); +void amu_group1_set_evtype(int idx, unsigned int val); + #endif /* __AMU_H__ */ -- cgit v1.2.3