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Diffstat (limited to 'include/asm-powerpc/mmu-hash32.h')
-rw-r--r--include/asm-powerpc/mmu-hash32.h28
1 files changed, 11 insertions, 17 deletions
diff --git a/include/asm-powerpc/mmu-hash32.h b/include/asm-powerpc/mmu-hash32.h
index 6e21ca618ec3..16b1a1e77e64 100644
--- a/include/asm-powerpc/mmu-hash32.h
+++ b/include/asm-powerpc/mmu-hash32.h
@@ -28,24 +28,18 @@
#define BPP_RW 0x02 /* Read/write */
#ifndef __ASSEMBLY__
+/* Contort a phys_addr_t into the right format/bits for a BAT */
+#ifdef CONFIG_PHYS_64BIT
+#define BAT_PHYS_ADDR(x) ((u32)((x & 0x00000000fffe0000ULL) | \
+ ((x & 0x0000000e00000000ULL) >> 24) | \
+ ((x & 0x0000000100000000ULL) >> 30)))
+#else
+#define BAT_PHYS_ADDR(x) (x)
+#endif
+
struct ppc_bat {
- struct {
- unsigned long bepi:15; /* Effective page index (virtual address) */
- unsigned long :4; /* Unused */
- unsigned long bl:11; /* Block size mask */
- unsigned long vs:1; /* Supervisor valid */
- unsigned long vp:1; /* User valid */
- } batu; /* Upper register */
- struct {
- unsigned long brpn:15; /* Real page index (physical address) */
- unsigned long :10; /* Unused */
- unsigned long w:1; /* Write-thru cache */
- unsigned long i:1; /* Cache inhibit */
- unsigned long m:1; /* Memory coherence */
- unsigned long g:1; /* Guarded (MBZ in IBAT) */
- unsigned long :1; /* Unused */
- unsigned long pp:2; /* Page access protections */
- } batl; /* Lower register */
+ u32 batu;
+ u32 batl;
};
#endif /* !__ASSEMBLY__ */