diff options
Diffstat (limited to 'sys/x86/x86/busdma_machdep.c')
| -rw-r--r-- | sys/x86/x86/busdma_machdep.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sys/x86/x86/busdma_machdep.c b/sys/x86/x86/busdma_machdep.c index e6a181292ca9..a7eaee042a6f 100644 --- a/sys/x86/x86/busdma_machdep.c +++ b/sys/x86/x86/busdma_machdep.c @@ -43,8 +43,12 @@ __FBSDID("$FreeBSD$"); #include <sys/memdesc.h> #include <sys/mutex.h> #include <sys/uio.h> +#include <sys/vmmeter.h> #include <vm/vm.h> #include <vm/vm_extern.h> +#include <vm/vm_param.h> +#include <vm/vm_page.h> +#include <vm/vm_phys.h> #include <vm/pmap.h> #include <machine/bus.h> #include <x86/include/busdma_impl.h> @@ -180,12 +184,29 @@ common_bus_dma_tag_create(struct bus_dma_tag_common *parent, common->filterarg = parent->filterarg; common->parent = parent->parent; } + common->domain = parent->domain; atomic_add_int(&parent->ref_count, 1); } + common->domain = vm_phys_domain_match(common->domain, 0ul, + common->lowaddr); *dmat = common; return (0); } +int +bus_dma_tag_set_domain(bus_dma_tag_t dmat, int domain) +{ + struct bus_dma_tag_common *tc; + + tc = (struct bus_dma_tag_common *)dmat; + domain = vm_phys_domain_match(domain, 0ul, tc->lowaddr); + /* Only call the callback if it changes. */ + if (domain == tc->domain) + return (0); + tc->domain = domain; + return (tc->impl->tag_set_domain(dmat)); +} + /* * Allocate a device specific dma_tag. */ |