obp_dumb_mmap() needs to call ofmem_map() rather than the low-level ofmem_arch_map_pages() function otherwise the specified area is mapped directly on the CPU without being recorded in the relevant memory node properties.
This fixes Solaris 2.6 which uses obp_dumb_mmap() to map the kernel msgbuf and would otherwise trap on boot as the mapping was lost once the kernel had taken over memory management from OpenBIOS.
While we're here, add a missing DPRINTF() to obp_dumb_mmap() and provide the corresponding obp_dumb_munmap() implementation.
Signed-off-by: Mark Cave-Ayland mark.cave-ayland@ilande.co.uk --- arch/sparc32/lib.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/arch/sparc32/lib.c b/arch/sparc32/lib.c index d27b604..a53a396 100644 --- a/arch/sparc32/lib.c +++ b/arch/sparc32/lib.c @@ -196,15 +196,25 @@ char *obp_dumb_mmap(char *va, int which_io, unsigned int pa, unsigned int size) { uint64_t mpa = ((uint64_t)which_io << 32) | (uint64_t)pa; + ucell virt; + + DPRINTF("obp_dumb_mmap: virta 0x%x, phys 0x%x, size %d\n", (unsigned int)va, pa, size); + + /* Claim virtual memory */ + virt = ofmem_claim_virt(pointer2cell(va), size, 0);
- ofmem_arch_map_pages(mpa, (unsigned long)va, size, ofmem_arch_default_translation_mode(mpa)); - return va; + /* Map memory */ + ofmem_map(mpa, virt, size, ofmem_arch_default_translation_mode(mpa)); + + return cell2pointer(virt); }
-void obp_dumb_munmap(__attribute__((unused)) char *va, - __attribute__((unused)) unsigned int size) +void obp_dumb_munmap(char *va, unsigned int size) { DPRINTF("obp_dumb_munmap: virta 0x%x, sz %d\n", (unsigned int)va, size); + + ofmem_unmap(pointer2cell(va), size); + ofmem_release_virt(pointer2cell(va), size); }
char *obp_memalloc(char *va, unsigned int size, unsigned int align)