diff options
| author | Matthias Welwarsky <matthias.welwarsky@sysgo.com> | 2016-10-06 16:36:29 +0200 |
|---|---|---|
| committer | Matthias Welwarsky <matthias.welwarsky@sysgo.com> | 2017-02-10 14:18:34 +0100 |
| commit | 2539a323081f046b14ad613b4a163baaf2679a9f (patch) | |
| tree | 00fbc606b23b402ebb64877db50c29d920e2a508 /src | |
| parent | a76e88daa645d7137c8415f48793525f2ba98545 (diff) | |
| download | riscv-openocd-2539a323081f046b14ad613b4a163baaf2679a9f.zip riscv-openocd-2539a323081f046b14ad613b4a163baaf2679a9f.tar.gz riscv-openocd-2539a323081f046b14ad613b4a163baaf2679a9f.tar.bz2 | |
aarch64: simplify armv8_read_ttbcr
Read registers based on current EL instead of PE mode.
Change-Id: I05d3219ac1bf8585e9f4f024a7e8599fea0913b6
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/target/armv8.c | 97 |
1 files changed, 47 insertions, 50 deletions
diff --git a/src/target/armv8.c b/src/target/armv8.c index a572e23..9b160a9 100644 --- a/src/target/armv8.c +++ b/src/target/armv8.c @@ -431,56 +431,53 @@ static __unused int armv8_read_ttbcr(struct target *target) memset(&armv8->armv8_mmu.ttbr1_used, 0, sizeof(armv8->armv8_mmu.ttbr1_used)); memset(&armv8->armv8_mmu.ttbr0_mask, 0, sizeof(armv8->armv8_mmu.ttbr0_mask)); - switch (arm->core_mode) { - case ARMV8_64_EL3H: - case ARMV8_64_EL3T: - retval = dpm->instr_read_data_r0(dpm, - ARMV8_MRS(SYSTEM_TCR_EL3, 0), - &ttbcr); - retval += dpm->instr_read_data_r0_64(dpm, - ARMV8_MRS(SYSTEM_TTBR0_EL3, 0), - &armv8->ttbr_base); - if (retval != ERROR_OK) - goto done; - armv8->va_size = 64 - (ttbcr & 0x3F); - armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7); - armv8->page_size = (ttbcr >> 14) & 3; - break; - case ARMV8_64_EL2T: - case ARMV8_64_EL2H: - retval = dpm->instr_read_data_r0(dpm, - ARMV8_MRS(SYSTEM_TCR_EL2, 0), - &ttbcr); - retval += dpm->instr_read_data_r0_64(dpm, - ARMV8_MRS(SYSTEM_TTBR0_EL2, 0), - &armv8->ttbr_base); - if (retval != ERROR_OK) - goto done; - armv8->va_size = 64 - (ttbcr & 0x3F); - armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7); - armv8->page_size = (ttbcr >> 14) & 3; - break; - case ARMV8_64_EL0T: - case ARMV8_64_EL1T: - case ARMV8_64_EL1H: - retval = dpm->instr_read_data_r0_64(dpm, - ARMV8_MRS(SYSTEM_TCR_EL1, 0), - &ttbcr_64); - armv8->va_size = 64 - (ttbcr_64 & 0x3F); - armv8->pa_size = armv8_pa_size((ttbcr_64 >> 32) & 7); - armv8->page_size = (ttbcr_64 >> 14) & 3; - armv8->armv8_mmu.ttbr1_used = (((ttbcr_64 >> 16) & 0x3F) != 0) ? 1 : 0; - armv8->armv8_mmu.ttbr0_mask = 0x0000FFFFFFFFFFFF; - retval += dpm->instr_read_data_r0_64(dpm, - ARMV8_MRS(SYSTEM_TTBR0_EL1 | (armv8->armv8_mmu.ttbr1_used), 0), - &armv8->ttbr_base); - if (retval != ERROR_OK) - goto done; - break; - default: - LOG_ERROR("unknow core state"); - retval = ERROR_FAIL; - break; + switch (armv8_curel_from_core_mode(arm)) { + case SYSTEM_CUREL_EL3: + retval = dpm->instr_read_data_r0(dpm, + ARMV8_MRS(SYSTEM_TCR_EL3, 0), + &ttbcr); + retval += dpm->instr_read_data_r0_64(dpm, + ARMV8_MRS(SYSTEM_TTBR0_EL3, 0), + &armv8->ttbr_base); + if (retval != ERROR_OK) + goto done; + armv8->va_size = 64 - (ttbcr & 0x3F); + armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7); + armv8->page_size = (ttbcr >> 14) & 3; + break; + case SYSTEM_CUREL_EL2: + retval = dpm->instr_read_data_r0(dpm, + ARMV8_MRS(SYSTEM_TCR_EL2, 0), + &ttbcr); + retval += dpm->instr_read_data_r0_64(dpm, + ARMV8_MRS(SYSTEM_TTBR0_EL2, 0), + &armv8->ttbr_base); + if (retval != ERROR_OK) + goto done; + armv8->va_size = 64 - (ttbcr & 0x3F); + armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7); + armv8->page_size = (ttbcr >> 14) & 3; + break; + case SYSTEM_CUREL_EL0: + case SYSTEM_CUREL_EL1: + retval = dpm->instr_read_data_r0_64(dpm, + ARMV8_MRS(SYSTEM_TCR_EL1, 0), + &ttbcr_64); + armv8->va_size = 64 - (ttbcr_64 & 0x3F); + armv8->pa_size = armv8_pa_size((ttbcr_64 >> 32) & 7); + armv8->page_size = (ttbcr_64 >> 14) & 3; + armv8->armv8_mmu.ttbr1_used = (((ttbcr_64 >> 16) & 0x3F) != 0) ? 1 : 0; + armv8->armv8_mmu.ttbr0_mask = 0x0000FFFFFFFFFFFF; + retval += dpm->instr_read_data_r0_64(dpm, + ARMV8_MRS(SYSTEM_TTBR0_EL1 | (armv8->armv8_mmu.ttbr1_used), 0), + &armv8->ttbr_base); + if (retval != ERROR_OK) + goto done; + break; + default: + LOG_ERROR("unknow core state"); + retval = ERROR_FAIL; + break; } if (retval != ERROR_OK) goto done; |