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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-09-15 19:21:14 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2022-09-15 19:46:07 +0300 |
| commit | a717296a2036cede5fccfff544513043a984d614 (patch) | |
| tree | 68f75a23adc298628fb9cab41fd47402a99dd19d /arch/riscv64/kernel/vmem.c | |
| parent | 619725a5f2f5272f9cbb547ed95c87312c2765a9 (diff) | |
| download | kmi-a717296a2036cede5fccfff544513043a984d614.tar.gz kmi-a717296a2036cede5fccfff544513043a984d614.zip | |
change syscalls to take 5 params and return 6
+ In total, a syscall is built up of 6 values, with the first being the
syscall number. Symmetrically, the first value is now a status and the
following five values return "values". This allows us to cram in more
info into the ipc_* functions. The performance difference is
absolutely minimal, at least from my testing in qemu.
Diffstat (limited to 'arch/riscv64/kernel/vmem.c')
| -rw-r--r-- | arch/riscv64/kernel/vmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv64/kernel/vmem.c b/arch/riscv64/kernel/vmem.c index 1abc58d..a029f6a 100644 --- a/arch/riscv64/kernel/vmem.c +++ b/arch/riscv64/kernel/vmem.c @@ -306,7 +306,7 @@ vm_t setup_kernel_io(struct vmem *b, vm_t paddr) { pm_t top_page = paddr / TOP_PAGE_SIZE; b->leaf[IO_PAGE] = (struct vmem *)to_pte(top_page * TOP_PAGE_SIZE, - VM_V | VM_R | VM_W); + VM_V | VM_R | VM_W); return -TOP_PAGE_SIZE + paddr - (top_page * TOP_PAGE_SIZE); } #endif |