Refactor AMU support for Cortex A75
This patch also fixes the assumption that the counters are disabled on
the resume path. This is incorrect as the AMU counters are enabled
early in the CPU reset function before `cpuamu_context_restore()`
runs.
Change-Id: I38a94eb166a523f00de18e86860434ffccff2131
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
diff --git a/include/lib/cpus/aarch64/cortex_a75.h b/include/lib/cpus/aarch64/cortex_a75.h
index 940125d..a54e085 100644
--- a/include/lib/cpus/aarch64/cortex_a75.h
+++ b/include/lib/cpus/aarch64/cortex_a75.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -19,28 +19,6 @@
/* Definitions of register field mask in CORTEX_A75_CPUPWRCTLR_EL1 */
#define CORTEX_A75_CORE_PWRDN_EN_MASK 0x1
-/*******************************************************************************
- * CPU Activity Monitor Unit register specific definitions.
- ******************************************************************************/
-#define CPUAMCNTENCLR_EL0 S3_3_C15_C9_7
-#define CPUAMCNTENSET_EL0 S3_3_C15_C9_6
-#define CPUAMCFGR_EL0 S3_3_C15_C10_6
-#define CPUAMUSERENR_EL0 S3_3_C15_C10_7
-
-/* Activity Monitor Event Counter Registers */
-#define CPUAMEVCNTR0_EL0 S3_3_C15_C9_0
-#define CPUAMEVCNTR1_EL0 S3_3_C15_C9_1
-#define CPUAMEVCNTR2_EL0 S3_3_C15_C9_2
-#define CPUAMEVCNTR3_EL0 S3_3_C15_C9_3
-#define CPUAMEVCNTR4_EL0 S3_3_C15_C9_4
-
-/* Activity Monitor Event Type Registers */
-#define CPUAMEVTYPER0_EL0 S3_3_C15_C10_0
-#define CPUAMEVTYPER1_EL0 S3_3_C15_C10_1
-#define CPUAMEVTYPER2_EL0 S3_3_C15_C10_2
-#define CPUAMEVTYPER3_EL0 S3_3_C15_C10_3
-#define CPUAMEVTYPER4_EL0 S3_3_C15_C10_4
-
#define CORTEX_A75_ACTLR_AMEN_BIT (U(1) << 4)
/*
diff --git a/include/lib/cpus/aarch64/cpuamu.h b/include/lib/cpus/aarch64/cpuamu.h
index 3d52f14..960a524 100644
--- a/include/lib/cpus/aarch64/cpuamu.h
+++ b/include/lib/cpus/aarch64/cpuamu.h
@@ -38,6 +38,11 @@
unsigned int cpuamu_read_cpuamcntenclr_el0(void);
void cpuamu_write_cpuamcntenset_el0(unsigned int mask);
void cpuamu_write_cpuamcntenclr_el0(unsigned int mask);
+
+int midr_match(unsigned int cpu_midr);
+void cpuamu_context_save(unsigned int nr_counters);
+void cpuamu_context_restore(unsigned int nr_counters);
+
#endif /* __ASSEMBLY__ */
#endif /* __CPUAMU_H__ */