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aarch64: register access rewrite

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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>
This commit is contained in:
Matthias Welwarsky
2016-10-06 16:10:38 +02:00
parent 2539a32308
commit 79c4c22e15
8 changed files with 582 additions and 368 deletions
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src/target/armv8_opcodes.c
+10 -10
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@@ -37,16 +37,16 @@ static const uint32_t a64_opcodes[ARMV8_OPC_NUM] = {
};
static const uint32_t t32_opcodes[ARMV8_OPC_NUM] = {
[READ_REG_CLIDR] = T32_FMTITR(ARMV4_5_MRC(15, 1, 0, 0, 0, 1)),
[READ_REG_CSSELR] = T32_FMTITR(ARMV4_5_MRC(15, 2, 0, 0, 0, 0)),
[READ_REG_CCSIDR] = T32_FMTITR(ARMV4_5_MRC(15, 1, 0, 0, 0, 0)),
[WRITE_REG_CSSELR] = T32_FMTITR(ARMV4_5_MCR(15, 2, 0, 0, 0, 0)),
[READ_REG_MPIDR] = T32_FMTITR(ARMV4_5_MRC(15, 0, 0, 0, 0, 5)),
[READ_REG_DTRRX] = T32_FMTITR(ARMV4_5_MRC(14, 0, 0, 0, 5, 0)),
[WRITE_REG_DTRTX] = T32_FMTITR(ARMV4_5_MCR(14, 0, 0, 0, 5, 0)),
[WRITE_REG_DSPSR] = T32_FMTITR(ARMV8_MCR_DSPSR(0)),
[READ_REG_DSPSR] = T32_FMTITR(ARMV8_MRC_DSPSR(0)),
[ARMV8_OPC_DSB_SY] = T32_FMTITR(ARMV8_DSB_SY_T1),
[READ_REG_CLIDR] = ARMV4_5_MRC(15, 1, 0, 0, 0, 1),
[READ_REG_CSSELR] = ARMV4_5_MRC(15, 2, 0, 0, 0, 0),
[READ_REG_CCSIDR] = ARMV4_5_MRC(15, 1, 0, 0, 0, 0),
[WRITE_REG_CSSELR] = ARMV4_5_MCR(15, 2, 0, 0, 0, 0),
[READ_REG_MPIDR] = ARMV4_5_MRC(15, 0, 0, 0, 0, 5),
[READ_REG_DTRRX] = ARMV4_5_MRC(14, 0, 0, 0, 5, 0),
[WRITE_REG_DTRTX] = ARMV4_5_MCR(14, 0, 0, 0, 5, 0),
[WRITE_REG_DSPSR] = ARMV8_MCR_DSPSR(0),
[READ_REG_DSPSR] = ARMV8_MRC_DSPSR(0),
[ARMV8_OPC_DSB_SY] = ARMV8_DSB_SY_T1,
};
void armv8_select_opcodes(struct armv8_common *armv8, bool state_is_aarch64)