diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-23 17:22:16 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-01-24 18:27:32 +0000 |
| commit | 8a327f23e23fa509e6e3c2263ae1cc0a67dec387 (patch) | |
| tree | 119abf09e1ec9babaf78e6889187f9d54864b118 /arch/powerpc/include/asm/immap_qe.h | |
| parent | 5a9a8d1a99c617df82339456fbdd30d6ed3a856b (diff) | |
| parent | d315777b32a4696feb86f2a0c9e9f39c94683649 (diff) | |
Merge remote branch 'linus/master' into drm-intel-fixes
Merge with Linus to resolve conflicting fixes for the reusing the stale
HEAD value during intel_ring_wait().
Conflicts:
drivers/gpu/drm/i915/intel_ringbuffer.c
Diffstat (limited to 'arch/powerpc/include/asm/immap_qe.h')
| -rw-r--r-- | arch/powerpc/include/asm/immap_qe.h | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/immap_qe.h b/arch/powerpc/include/asm/immap_qe.h index 4e10f508570a..0edb6842b13d 100644 --- a/arch/powerpc/include/asm/immap_qe.h +++ b/arch/powerpc/include/asm/immap_qe.h @@ -467,13 +467,22 @@ struct qe_immap { extern struct qe_immap __iomem *qe_immr; extern phys_addr_t get_qe_base(void); -static inline unsigned long immrbar_virt_to_phys(void *address) +/* + * Returns the offset within the QE address space of the given pointer. + * + * Note that the QE does not support 36-bit physical addresses, so if + * get_qe_base() returns a number above 4GB, the caller will probably fail. + */ +static inline phys_addr_t immrbar_virt_to_phys(void *address) { - if ( ((u32)address >= (u32)qe_immr) && - ((u32)address < ((u32)qe_immr + QE_IMMAP_SIZE)) ) - return (unsigned long)(address - (u32)qe_immr + - (u32)get_qe_base()); - return (unsigned long)virt_to_phys(address); + void *q = (void *)qe_immr; + + /* Is it a MURAM address? */ + if ((address >= q) && (address < (q + QE_IMMAP_SIZE))) + return get_qe_base() + (address - q); + + /* It's an address returned by kmalloc */ + return virt_to_phys(address); } #endif /* __KERNEL__ */ |