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| author | jake <jake@FreeBSD.org> | 2003-03-15 23:59:00 +0000 |
|---|---|---|
| committer | jake <jake@FreeBSD.org> | 2003-03-15 23:59:00 +0000 |
| commit | bfdf0845f229df32dd8ae23b653835a8a3bbb02e (patch) | |
| tree | e12bbb9dd99db538b74f2a16e22a9b05e672897f | |
| parent | 5e42320b6c7d29411910e917de7f2fadded44ff3 (diff) | |
| download | FreeBSD-src-bfdf0845f229df32dd8ae23b653835a8a3bbb02e.zip FreeBSD-src-bfdf0845f229df32dd8ae23b653835a8a3bbb02e.tar.gz | |
Implement is_physical_memory. Accessing memory which doesn't exist causes
traps that are difficult to recover from, so we check against the memory
map returned by the prom.
| -rw-r--r-- | sys/sparc64/sparc64/vm_machdep.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/sparc64/sparc64/vm_machdep.c b/sys/sparc64/sparc64/vm_machdep.c index b2b21c8..7258727 100644 --- a/sys/sparc64/sparc64/vm_machdep.c +++ b/sys/sparc64/sparc64/vm_machdep.c @@ -75,9 +75,13 @@ #include <machine/frame.h> #include <machine/md_var.h> #include <machine/ofw_machdep.h> +#include <machine/ofw_mem.h> #include <machine/tlb.h> #include <machine/tstate.h> +extern struct ofw_mem_region sparc64_memreg[]; +extern int sparc64_nmemreg; + PMAP_STATS_VAR(uma_nsmall_alloc); PMAP_STATS_VAR(uma_nsmall_alloc_oc); PMAP_STATS_VAR(uma_nsmall_free); @@ -295,9 +299,12 @@ cpu_wait(struct proc *p) int is_physical_memory(vm_offset_t addr) { + struct ofw_mem_region *mr; - /* There is no device memory in the midst of the normal RAM. */ - return (1); + for (mr = sparc64_memreg; mr < sparc64_memreg + sparc64_nmemreg; mr++) + if (addr >= mr->mr_start && addr < mr->mr_start + mr->mr_size) + return (1); + return (0); } void @@ -367,4 +374,3 @@ uma_small_free(void *mem, int size, u_int8_t flags) vm_page_free(m); vm_page_unlock_queues(); } - |
