diff options
| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2023-06-04 23:31:42 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2023-06-04 23:31:42 +0300 |
| commit | 3b8990f17c50e946bc1b9bca5997a25d69d0757c (patch) | |
| tree | 3568e26534c2f2a071736495ea7644d86c726598 /arch | |
| parent | 4c7286ef7cf3da1897085406f85564faac5185bb (diff) | |
| download | kmi-3b8990f17c50e946bc1b9bca5997a25d69d0757c.tar.gz kmi-3b8990f17c50e946bc1b9bca5997a25d69d0757c.zip | |
slight optimization and brainfart fix
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv64/kernel/vmem.c | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/arch/riscv64/kernel/vmem.c b/arch/riscv64/kernel/vmem.c index 89d895f..9edd246 100644 --- a/arch/riscv64/kernel/vmem.c +++ b/arch/riscv64/kernel/vmem.c @@ -398,8 +398,8 @@ static void __use_vmem(struct vmem *branch, enum mm_mode m) else if (m == Sv48) mode = SATP_MODE_Sv48; - flush_tlb_full(); csr_write(CSR_SATP, mode | pn); + flush_tlb_full(); /* Sv57 && Sv64 in the future? */ /** @todo ASID table for maybe faster context switches? */ } @@ -468,33 +468,19 @@ vm_t setup_kernel_io(struct vmem *b, vm_t paddr) void clone_uvmem(struct vmem * restrict r, struct vmem * restrict b) { size_t i = 0; - for (; i < CSTACK_PAGE; i += 8) { + for (; i < CSTACK_PAGE; ++i) { struct vmem *t = r->leaf[i + 0]; if (t == 0) break; - b->leaf[i + 0] = t; - b->leaf[i + 1] = r->leaf[i + 1]; - b->leaf[i + 2] = r->leaf[i + 2]; - b->leaf[i + 3] = r->leaf[i + 3]; - b->leaf[i + 4] = r->leaf[i + 4]; - b->leaf[i + 5] = r->leaf[i + 5]; - b->leaf[i + 6] = r->leaf[i + 6]; - b->leaf[i + 7] = r->leaf[i + 7]; + b->leaf[i] = t; } - for (; i < CSTACK_PAGE; i += 8) { + for (; i < CSTACK_PAGE; ++i) { struct vmem *t = b->leaf[i + 0]; if (t == 0) break; - b->leaf[i + 0] = 0; - b->leaf[i + 1] = 0; - b->leaf[i + 2] = 0; - b->leaf[i + 3] = 0; - b->leaf[i + 4] = 0; - b->leaf[i + 5] = 0; - b->leaf[i + 6] = 0; - b->leaf[i + 7] = 0; + b->leaf[i] = 0; } } |