d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add more platforms supporting the direct map feature in the LinuxKPI.

Browse Source 
MFC after:		1 week
Sponsored by:		Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2017-03-27 17:09:11 +00:00
parent 8186b52744
commit 0791730913
1 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/compat/linuxkpi/common/src/linux_page.c
View File

@ -63,10 +63,16 @@ __FBSDID("$FreeBSD$");
#include <linux/mm.h>
#include <linux/preempt.h>
#if defined(__amd64__) || defined(__aarch64__) || defined(__riscv__)
#define LINUXKPI_HAVE_DMAP
#else
#undef LINUXKPI_HAVE_DMAP
#endif
void *
linux_page_address(struct page *page)
{
#ifdef __amd64__
#ifdef LINUXKPI_HAVE_DMAP
return ((void *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(page)));
#else
if (page->object != kmem_object && page->object != kernel_object)
@ -79,7 +85,7 @@ linux_page_address(struct page *page)
vm_page_t
linux_alloc_pages(gfp_t flags, unsigned int order)
{
#ifdef __amd64__
#ifdef LINUXKPI_HAVE_DMAP
unsigned long npages = 1UL << order;
int req = (flags & M_ZERO) ? (VM_ALLOC_ZERO | VM_ALLOC_NOOBJ |
VM_ALLOC_NORMAL) : (VM_ALLOC_NOOBJ | VM_ALLOC_NORMAL);
@ -137,7 +143,7 @@ linux_alloc_pages(gfp_t flags, unsigned int order)
void
linux_free_pages(vm_page_t page, unsigned int order)
{
#ifdef __amd64__
#ifdef LINUXKPI_HAVE_DMAP
unsigned long npages = 1UL << order;
unsigned long x;