aarch64: register access rewrite

All register access is now performed through common read/write
functions, which delegate the actual register access to the
armv8_common object. armv8_common contains function pointers
to direct read and write requests to the respective low-level
functions for each PE state.

The respective read/write functions are selected on debug state
entry.

At the same time, T32 opcodes are now formatted for ITR in
dpmv8_exec_opcode() and the T32_FMTITR macro is removed from global
visibility.

Change-Id: I9eaef017c7cc9e0c531e693c534901bfdbdb842c
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/target/arm_dpm.h b/src/target/arm_dpm.h
index 63467d5..f8d1248 100644
--- a/src/target/arm_dpm.h
+++ b/src/target/arm_dpm.h
@@ -143,6 +143,9 @@ struct arm_dpm {
 	/** Recent value of DSCR. */
 	uint32_t dscr;
 
+	/** Recent exception level on armv8 */
+	unsigned int last_el;
+
 	/* FIXME -- read/write DCSR methods and symbols */
 };
 
@@ -150,10 +153,8 @@ int arm_dpm_setup(struct arm_dpm *dpm);
 int arm_dpm_initialize(struct arm_dpm *dpm);
 
 int arm_dpm_read_current_registers(struct arm_dpm *);
-int arm_dpm_read_current_registers_64(struct arm_dpm *);
 int dpm_modeswitch(struct arm_dpm *dpm, enum arm_mode mode);
 
-
 int arm_dpm_write_dirty_registers(struct arm_dpm *, bool bpwp);
 
 void arm_dpm_report_wfar(struct arm_dpm *, uint32_t wfar);