A couple of these lines originated with me.
Signed-off-by: Joel Schopp [EMAIL PROTECTED]
Michael Neuling wrote:
Add a VSX CPU feature. Also add code to detect if VSX is available
from the device tree.
Signed-off-by: Michael Neuling [EMAIL PROTECTED]
---
arch/powerpc/kernel/prom.c |3 +++
include/asm-powerpc/cputable.h | 13 +
2 files changed, 16 insertions(+)
Index: linux-2.6-ozlabs/arch/powerpc/kernel/prom.c
===
--- linux-2.6-ozlabs.orig/arch/powerpc/kernel/prom.c
+++ linux-2.6-ozlabs/arch/powerpc/kernel/prom.c
@@ -609,6 +609,9 @@ static struct feature_property {
{altivec, 0, CPU_FTR_ALTIVEC, PPC_FEATURE_HAS_ALTIVEC},
{ibm,vmx, 1, CPU_FTR_ALTIVEC, PPC_FEATURE_HAS_ALTIVEC},
#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_VSX
+ {ibm,vmx, 2, CPU_FTR_VSX, PPC_FEATURE_HAS_VSX},
+#endif /* CONFIG_VSX */
#ifdef CONFIG_PPC64
{ibm,dfp, 1, 0, PPC_FEATURE_HAS_DFP},
{ibm,purr, 1, CPU_FTR_PURR, 0},
Index: linux-2.6-ozlabs/include/asm-powerpc/cputable.h
===
--- linux-2.6-ozlabs.orig/include/asm-powerpc/cputable.h
+++ linux-2.6-ozlabs/include/asm-powerpc/cputable.h
@@ -27,6 +27,7 @@
#define PPC_FEATURE_HAS_DFP0x0400
#define PPC_FEATURE_POWER6_EXT 0x0200
#define PPC_FEATURE_ARCH_2_06 0x0100
+#define PPC_FEATURE_HAS_VSX0x0080
#define PPC_FEATURE_TRUE_LE 0x0002
#define PPC_FEATURE_PPC_LE 0x0001
@@ -181,6 +182,7 @@ extern void do_feature_fixups(unsigned l
#define CPU_FTR_DSCR LONG_ASM_CONST(0x0002)
#define CPU_FTR_1T_SEGMENT LONG_ASM_CONST(0x0004)
#define CPU_FTR_NO_SLBIE_B LONG_ASM_CONST(0x0008)
+#define CPU_FTR_VSXLONG_ASM_CONST(0x0010)
#ifndef __ASSEMBLY__
@@ -199,6 +201,17 @@ extern void do_feature_fixups(unsigned l
#define PPC_FEATURE_HAS_ALTIVEC_COMP0
#endif
+/* We only set the VSX features if the kernel was compiled with VSX
+ * support
+ */
+#ifdef CONFIG_VSX
+#define CPU_FTR_VSX_COMP CPU_FTR_VSX
+#define PPC_FEATURE_HAS_VSX_COMP PPC_FEATURE_HAS_VSX
+#else
+#define CPU_FTR_VSX_COMP 0
+#define PPC_FEATURE_HAS_VSX_COMP0
+#endif
+
/* We only set the spe features if the kernel was compiled with spe
* support
*/
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