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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/vfp.h
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-arm/vfp.h')
-rw-r--r--include/asm-arm/vfp.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/include/asm-arm/vfp.h b/include/asm-arm/vfp.h
new file mode 100644
index 000000000000..14c5e0946c47
--- /dev/null
+++ b/include/asm-arm/vfp.h
@@ -0,0 +1,78 @@
+/*
+ * linux/include/asm-arm/vfp.h
+ *
+ * VFP register definitions.
+ * First, the standard VFP set.
+ */
+
+#define FPSID cr0
+#define FPSCR cr1
+#define FPEXC cr8
+
+/* FPSID bits */
+#define FPSID_IMPLEMENTER_BIT (24)
+#define FPSID_IMPLEMENTER_MASK (0xff << FPSID_IMPLEMENTER_BIT)
+#define FPSID_SOFTWARE (1<<23)
+#define FPSID_FORMAT_BIT (21)
+#define FPSID_FORMAT_MASK (0x3 << FPSID_FORMAT_BIT)
+#define FPSID_NODOUBLE (1<<20)
+#define FPSID_ARCH_BIT (16)
+#define FPSID_ARCH_MASK (0xF << FPSID_ARCH_BIT)
+#define FPSID_PART_BIT (8)
+#define FPSID_PART_MASK (0xFF << FPSID_PART_BIT)
+#define FPSID_VARIANT_BIT (4)
+#define FPSID_VARIANT_MASK (0xF << FPSID_VARIANT_BIT)
+#define FPSID_REV_BIT (0)
+#define FPSID_REV_MASK (0xF << FPSID_REV_BIT)
+
+/* FPEXC bits */
+#define FPEXC_EXCEPTION (1<<31)
+#define FPEXC_ENABLE (1<<30)
+
+/* FPSCR bits */
+#define FPSCR_DEFAULT_NAN (1<<25)
+#define FPSCR_FLUSHTOZERO (1<<24)
+#define FPSCR_ROUND_NEAREST (0<<22)
+#define FPSCR_ROUND_PLUSINF (1<<22)
+#define FPSCR_ROUND_MINUSINF (2<<22)
+#define FPSCR_ROUND_TOZERO (3<<22)
+#define FPSCR_RMODE_BIT (22)
+#define FPSCR_RMODE_MASK (3 << FPSCR_RMODE_BIT)
+#define FPSCR_STRIDE_BIT (20)
+#define FPSCR_STRIDE_MASK (3 << FPSCR_STRIDE_BIT)
+#define FPSCR_LENGTH_BIT (16)
+#define FPSCR_LENGTH_MASK (7 << FPSCR_LENGTH_BIT)
+#define FPSCR_IOE (1<<8)
+#define FPSCR_DZE (1<<9)
+#define FPSCR_OFE (1<<10)
+#define FPSCR_UFE (1<<11)
+#define FPSCR_IXE (1<<12)
+#define FPSCR_IDE (1<<15)
+#define FPSCR_IOC (1<<0)
+#define FPSCR_DZC (1<<1)
+#define FPSCR_OFC (1<<2)
+#define FPSCR_UFC (1<<3)
+#define FPSCR_IXC (1<<4)
+#define FPSCR_IDC (1<<7)
+
+/*
+ * VFP9-S specific.
+ */
+#define FPINST cr9
+#define FPINST2 cr10
+
+/* FPEXC bits */
+#define FPEXC_FPV2 (1<<28)
+#define FPEXC_LENGTH_BIT (8)
+#define FPEXC_LENGTH_MASK (7 << FPEXC_LENGTH_BIT)
+#define FPEXC_INV (1 << 7)
+#define FPEXC_UFC (1 << 3)
+#define FPEXC_OFC (1 << 2)
+#define FPEXC_IOC (1 << 0)
+
+/* Bit patterns for decoding the packaged operation descriptors */
+#define VFPOPDESC_LENGTH_BIT (9)
+#define VFPOPDESC_LENGTH_MASK (0x07 << VFPOPDESC_LENGTH_BIT)
+#define VFPOPDESC_UNUSED_BIT (24)
+#define VFPOPDESC_UNUSED_MASK (0xFF << VFPOPDESC_UNUSED_BIT)
+#define VFPOPDESC_OPDESC_MASK (~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK))