| Message ID | 20231220075412.24084-9-andy.chiu@sifive.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | riscv: support kernel-mode Vector | expand |
| Context | Check | Description |
|---|---|---|
| conchuod/vmtest-for-next-PR | fail | PR summary |
| conchuod/patch-8-test-1 | success | .github/scripts/patches/build_rv32_defconfig.sh |
| conchuod/patch-8-test-2 | fail | .github/scripts/patches/build_rv64_clang_allmodconfig.sh |
| conchuod/patch-8-test-3 | fail | .github/scripts/patches/build_rv64_gcc_allmodconfig.sh |
| conchuod/patch-8-test-4 | fail | .github/scripts/patches/build_rv64_nommu_k210_defconfig.sh |
| conchuod/patch-8-test-5 | fail | .github/scripts/patches/build_rv64_nommu_virt_defconfig.sh |
| conchuod/patch-8-test-6 | success | .github/scripts/patches/checkpatch.sh |
| conchuod/patch-8-test-7 | success | .github/scripts/patches/dtb_warn_rv64.sh |
| conchuod/patch-8-test-8 | success | .github/scripts/patches/header_inline.sh |
| conchuod/patch-8-test-9 | success | .github/scripts/patches/kdoc.sh |
| conchuod/patch-8-test-10 | success | .github/scripts/patches/module_param.sh |
| conchuod/patch-8-test-11 | success | .github/scripts/patches/verify_fixes.sh |
| conchuod/patch-8-test-12 | success | .github/scripts/patches/verify_signedoff.sh |
diff --git a/arch/riscv/kernel/vector.c b/arch/riscv/kernel/vector.c index 66e8c6ab09d2..c1f28bc89ec6 100644 --- a/arch/riscv/kernel/vector.c +++ b/arch/riscv/kernel/vector.c @@ -122,7 +122,8 @@ static inline void riscv_v_ctrl_set(struct task_struct *tsk, int cur, int nxt, ctrl |= VSTATE_CTRL_MAKE_NEXT(nxt); if (inherit) ctrl |= PR_RISCV_V_VSTATE_CTRL_INHERIT; - tsk->thread.vstate_ctrl = ctrl; + tsk->thread.vstate_ctrl &= ~PR_RISCV_V_VSTATE_CTRL_MASK; + tsk->thread.vstate_ctrl |= ctrl; } bool riscv_v_vstate_ctrl_user_allowed(void)
riscv_v_ctrl_set() should only touch bits within PR_RISCV_V_VSTATE_CTRL_MASK. So, use the mask when we really set task's vstate_ctrl. Signed-off-by: Andy Chiu <andy.chiu@sifive.com> --- Changelog v6: - splitted out from v3 --- arch/riscv/kernel/vector.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)