diff options
| author | Zong Li <zong@andestech.com> | 2018-08-02 11:21:56 -0400 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2018-08-13 11:31:31 -0400 |
| commit | 94f592f0e5b9c17a7505119a2d6c0f1f529ae93d (patch) | |
| tree | 1756b57cd7fd41d14e9902eba01283caee7d747b | |
| parent | 62b0194368147def8c5a77ce604a125d620fc582 (diff) | |
RISC-V: Add the directive for alignment of stvec's value
The stvec's value must be 4 byte alignment by specification definition.
These directives avoid to stvec be set the non-alignment value.
Signed-off-by: Zong Li <zong@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
| -rw-r--r-- | arch/riscv/kernel/head.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S index 6e07ed37bbff..c4d2c63f9a29 100644 --- a/arch/riscv/kernel/head.S +++ b/arch/riscv/kernel/head.S | |||
| @@ -94,6 +94,7 @@ relocate: | |||
| 94 | or a0, a0, a1 | 94 | or a0, a0, a1 |
| 95 | sfence.vma | 95 | sfence.vma |
| 96 | csrw sptbr, a0 | 96 | csrw sptbr, a0 |
| 97 | .align 2 | ||
| 97 | 1: | 98 | 1: |
| 98 | /* Set trap vector to spin forever to help debug */ | 99 | /* Set trap vector to spin forever to help debug */ |
| 99 | la a0, .Lsecondary_park | 100 | la a0, .Lsecondary_park |
| @@ -143,6 +144,7 @@ relocate: | |||
| 143 | tail smp_callin | 144 | tail smp_callin |
| 144 | #endif | 145 | #endif |
| 145 | 146 | ||
| 147 | .align 2 | ||
| 146 | .Lsecondary_park: | 148 | .Lsecondary_park: |
| 147 | /* We lack SMP support or have too many harts, so park this hart */ | 149 | /* We lack SMP support or have too many harts, so park this hart */ |
| 148 | wfi | 150 | wfi |
