diff options
| author | wxjstz <wxjstz@126.com> | 2017-06-06 16:50:46 +0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-09-26 16:50:36 +0000 |
| commit | d277960eb8f7c8ed068f1823049c701e00ea8e46 (patch) | |
| tree | 28a5998c5749e9c40f59d66ab31761be0067f6ef /src | |
| parent | a57cc2ffb2244c6c93b2e33de4168f12fc8faf29 (diff) | |
riscv: Update register address
I triggered a bug, when I try to debug riscv code by spike.
This bug is caused by an instruction exception[csrwi 0x320,7].
This is operate for mcounteren. This address is error. 0x306
is right. scounteren is not need to be set, because S-mode
code controls it.
Change-Id: If0bea4bf52d8ad2fb2598724d6feb59dc1b3084a
Signed-off-by: wxjstz<wxjstz@126.com>
Reviewed-on: https://review.coreboot.org/20043
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/riscv/virtual_memory.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/arch/riscv/virtual_memory.c b/src/arch/riscv/virtual_memory.c index 2c440d24aa..1fff1d170a 100644 --- a/src/arch/riscv/virtual_memory.c +++ b/src/arch/riscv/virtual_memory.c @@ -311,11 +311,10 @@ void mstatus_init(void) set_csr(medeleg, delegate); // Enable all user/supervisor-mode counters using - // v1.9.1 register addresses. + // v1.10 register addresses. // They moved from the earlier spec. // Until we trust our toolchain use the hardcoded constants. // These were in flux and people who get the older toolchain // will have difficult-to-debug failures. - write_csr(/*mucounteren*/0x320, 7); - write_csr(/*mscounteren*/0x321, 7); + write_csr(/*mcounteren*/0x306, 7); } |