git: 2e956c30cab6 - main - riscv: Use generic CSR macros for writing SATP
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Date: Tue, 01 Mar 2022 14:39:59 UTC
The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=2e956c30cab6a36fee9a3d5159c3903406e3e5e7 commit 2e956c30cab6a36fee9a3d5159c3903406e3e5e7 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2022-03-01 14:03:44 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2022-03-01 14:39:43 +0000 riscv: Use generic CSR macros for writing SATP Instead of having the one-off load_satp(), just use csr_write(). No functional change intended. Reviewed by: alc, jhb MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34271 --- sys/riscv/include/cpufunc.h | 7 ------- sys/riscv/riscv/pmap.c | 2 +- 2 files changed, 1 insertion(+), 8 deletions(-) diff --git a/sys/riscv/include/cpufunc.h b/sys/riscv/include/cpufunc.h index 0f27fc45d57d..7b7afb50fee8 100644 --- a/sys/riscv/include/cpufunc.h +++ b/sys/riscv/include/cpufunc.h @@ -120,13 +120,6 @@ extern int64_t icache_line_size; #define cpu_icache_sync_range(a, s) #define cpu_icache_sync_range_checked(a, s) -static __inline void -load_satp(uint64_t val) -{ - - __asm __volatile("csrw satp, %0" :: "r"(val)); -} - #define cpufunc_nullop() riscv_nullop() void riscv_nullop(void); diff --git a/sys/riscv/riscv/pmap.c b/sys/riscv/riscv/pmap.c index 545d77f808c7..d26d6113ee36 100644 --- a/sys/riscv/riscv/pmap.c +++ b/sys/riscv/riscv/pmap.c @@ -4402,7 +4402,7 @@ pmap_activate_sw(struct thread *td) pmap = vmspace_pmap(td->td_proc->p_vmspace); if (pmap == oldpmap) return; - load_satp(pmap->pm_satp); + csr_write(satp, pmap->pm_satp); hart = PCPU_GET(hart); #ifdef SMP