X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-powerpc%2Ftce.h;h=6fa200ad7a7f29813ae15d484b2dacaa1f7aa3ce;hb=9464c7cf61b9433057924c36e6e02f303a00e768;hp=c9483adbf59994edc016a90b4f8dfac29449e72f;hpb=41689045f6a3cbe0550e1d34e9cc20d2e8c432ba;p=linux-2.6.git

diff --git a/include/asm-powerpc/tce.h b/include/asm-powerpc/tce.h
index c9483adbf..6fa200ad7 100644
--- a/include/asm-powerpc/tce.h
+++ b/include/asm-powerpc/tce.h
@@ -35,15 +35,32 @@
 #define TCE_PAGE_SIZE	(1 << TCE_SHIFT)
 #define TCE_PAGE_FACTOR	(PAGE_SHIFT - TCE_SHIFT)
 
-#define TCE_ENTRY_SIZE		8		/* each TCE is 64 bits */
-
-#define TCE_RPN_MASK		0xfffffffffful  /* 40-bit RPN (4K pages) */
-#define TCE_RPN_SHIFT		12
-#define TCE_VALID		0x800		/* TCE valid */
-#define TCE_ALLIO		0x400		/* TCE valid for all lpars */
-#define TCE_PCI_WRITE		0x2		/* write from PCI allowed */
-#define TCE_PCI_READ		0x1		/* read from PCI allowed */
-#define TCE_VB_WRITE		0x1		/* write from VB allowed */
+
+/* tce_entry
+ * Used by pSeries (SMP) and iSeries/pSeries LPAR, but there it's
+ * abstracted so layout is irrelevant.
+ */
+union tce_entry {
+   	unsigned long te_word;
+	struct {
+		unsigned int  tb_cacheBits :6;	/* Cache hash bits - not used */
+		unsigned int  tb_rsvd      :6;
+		unsigned long tb_rpn       :40;	/* Real page number */
+		unsigned int  tb_valid     :1;	/* Tce is valid (vb only) */
+		unsigned int  tb_allio     :1;	/* Tce is valid for all lps (vb only) */
+		unsigned int  tb_lpindex   :8;	/* LpIndex for user of TCE (vb only) */
+		unsigned int  tb_pciwr     :1;	/* Write allowed (pci only) */
+		unsigned int  tb_rdwr      :1;	/* Read allowed  (pci), Write allowed (vb) */
+	} te_bits;
+#define te_cacheBits te_bits.tb_cacheBits
+#define te_rpn       te_bits.tb_rpn
+#define te_valid     te_bits.tb_valid
+#define te_allio     te_bits.tb_allio
+#define te_lpindex   te_bits.tb_lpindex
+#define te_pciwr     te_bits.tb_pciwr
+#define te_rdwr      te_bits.tb_rdwr
+};
+
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_TCE_H */