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Differential D20502 Diff 58245 sys/compat/linuxkpi/common/src/linux_page.c

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sys/compat/linuxkpi/common/src/linux_page.c

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vm_page_t vm_page_t
linux_alloc_pages(gfp_t flags, unsigned int order) linux_alloc_pages(gfp_t flags, unsigned int order)
{ {
vm_page_t page; vm_page_t page;
if (PMAP_HAS_DMAP) { if (PMAP_HAS_DMAP) {
unsigned long npages = 1UL << order; unsigned long npages = 1UL << order;
int req = (flags & M_ZERO) ? (VM_ALLOC_ZERO | VM_ALLOC_NOOBJ | int req = VM_ALLOC_NOOBJ | VM_ALLOC_WIRED | VM_ALLOC_NORMAL;
VM_ALLOC_NORMAL) : (VM_ALLOC_NOOBJ | VM_ALLOC_NORMAL);
johalunUnsubmitted
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Any LINUXKPI_VERSION checks would have to go in the header files since drm drivers, who declare it, are built from ports... That's why my example was for change in gfp.h.

johalun: Any LINUXKPI_VERSION checks would have to go in the header files since drm drivers, who declare…
markjAuthorUnsubmitted
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I see now, sorry. I implemented a NOTWIRED flag, so that when 50000 support is dropped we can just delete all of the added code.

markj: I see now, sorry. I implemented a NOTWIRED flag, so that when 50000 support is dropped we can…
#ifdef __GFP_NOTWIRED
if ((flags & __GFP_NOTWIRED) != 0)
req &= ~VM_ALLOC_WIRED;
#endif
if ((flags & M_ZERO) != 0)
req |= VM_ALLOC_ZERO;
if (order == 0 && (flags & GFP_DMA32) == 0) { if (order == 0 && (flags & GFP_DMA32) == 0) {
page = vm_page_alloc(NULL, 0, req); page = vm_page_alloc(NULL, 0, req);
if (page == NULL) if (page == NULL)
return (NULL); return (NULL);
} else { } else {
vm_paddr_t pmax = (flags & GFP_DMA32) ? vm_paddr_t pmax = (flags & GFP_DMA32) ?
BUS_SPACE_MAXADDR_32BIT : BUS_SPACE_MAXADDR; BUS_SPACE_MAXADDR_32BIT : BUS_SPACE_MAXADDR;
retry: retry:
▲ Show 20 Lines • Show All 44 Lines • ▼ Show 20 Lineslinux_free_pages(vm_page_t page, unsigned int order)
if (PMAP_HAS_DMAP) { if (PMAP_HAS_DMAP) {
unsigned long npages = 1UL << order; unsigned long npages = 1UL << order;
unsigned long x; unsigned long x;
for (x = 0; x != npages; x++) { for (x = 0; x != npages; x++) {
vm_page_t pgo = page + x; vm_page_t pgo = page + x;
vm_page_lock(pgo); vm_page_lock(pgo);
if (vm_page_unwire_noq(pgo))
vm_page_free(pgo); vm_page_free(pgo);
vm_page_unlock(pgo); vm_page_unlock(pgo);
} }
} else { } else {
vm_offset_t vaddr; vm_offset_t vaddr;
vaddr = (vm_offset_t)page_address(page); vaddr = (vm_offset_t)page_address(page);
linux_free_kmem(vaddr, order); linux_free_kmem(vaddr, order);
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