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powerpc: fix warning when compiling immap_qe.h 

Fix the warnings genereted by arch/powerpc/include/asm/immap_qe.h when
CONFIG_PHYS_ADDR_T_64BIT is defined:

immap_qe.h: In function 'immrbar_virt_to_phys':
immap_qe.h:472:8: warning: cast from pointer to integer of different size
immap_qe.h:472:24: warning: cast from pointer to integer of different size
immap_qe.h:473:5: warning: cast from pointer to integer of different size
immap_qe.h:473:21: warning: cast from pointer to integer of different size
immap_qe.h:474:36: warning: cast from pointer to integer of different size

Note that the QE does not support 36-bit physical addresses, so even when
CONFIG_PHYS_ADDR_T_64BIT is defined, the QE MURAM must be located below the
4GB boundary.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Timur Tabi 2010-10-14 15:15:30 -05:00 committed by Kumar Gala
parent b2e0861e51
commit b49d81ded4
1 changed files with 15 additions and 6 deletions
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21
arch/powerpc/include/asm/immap_qe.h
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@ -467,13 +467,22 @@ struct qe_immap {
extern struct qe_immap __iomem *qe_immr; extern struct qe_immap __iomem *qe_immr;
extern phys_addr_t get_qe_base(void); 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) && void *q = (void *)qe_immr;
((u32)address < ((u32)qe_immr + QE_IMMAP_SIZE)) )
return (unsigned long)(address - (u32)qe_immr + /* Is it a MURAM address? */
(u32)get_qe_base()); if ((address >= q) && (address < (q + QE_IMMAP_SIZE)))
return (unsigned long)virt_to_phys(address); return get_qe_base() + (address - q);
/* It's an address returned by kmalloc */
return virt_to_phys(address);
} }
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */