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3 Commits

Author SHA1 Message Date
johpow01
873d4241e3 Enable v8.6 AMU enhancements (FEAT_AMUv1p1) 
ARMv8.6 adds virtual offset registers to support virtualization of the
event counters in EL1 and EL0.  This patch enables support for this
feature in EL3 firmware.

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I7ee1f3d9f554930bf5ef6f3d492e932e6d95b217
 2021-02-25 22:01:59 +00:00
Dimitris Papastamos
edea5c124d aarch32: Fix multiple bugs in amu_helpers.S 
AArch32 uses odd-even pairs when passing 64-bit arguments to
functions.  For example in `amu_group0_cnt_write_internal()` the
second argument is a uint64_t which is passed in r2 and r3.

In `amu_group1_set_evtype_internal()` the value that needs to be
written to the system register is in r1 not in r0.

Change-Id: I20196268fdb1dc9ef6c4ebe61e761fba9623b3f2
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
 2018-02-27 12:05:59 +00:00
Joel Hutton
ce213b9622 AMU: Add assembler helper functions for aarch32 
Change-Id: Id6dfe885a63561b1d2649521bd020367b96ae1af
Signed-off-by: Joel Hutton <joel.hutton@arm.com>
 2018-01-31 14:08:22 +00:00