Module: xenomai-rpm
Branch: for-upstream
Commit: 7f59bc2bfc9d5533fae1b7130e085d485c8350a1
URL:
http://git.xenomai.org/?p=xenomai-rpm.git;a=commit;h=7f59bc2bfc9d5533fae1b7130e085d485c8350a1
Author: Philippe Gerum <r...@xenomai.org>
Date: Wed Jun 23 16:00:06 2010 +0200
powerpc: introduce HW_MATH_EMU symbol
We need a way to identify platforms for which kernel-based FPU support
is not available, because some form of math emulation is required to
handle FP code.
Introduce and check CONFIG_XENO_HW_MATH_EMU for this purpose; that
conditional symbol is set by the arch-dep Kconfig frag, depending on
the presence of other platform-specific symbols it may test.
---
include/asm-powerpc/fptest.h | 4 ++--
ksrc/arch/powerpc/Kconfig | 4 ++++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/include/asm-powerpc/fptest.h b/include/asm-powerpc/fptest.h
index de3e9af..02c5cb3 100644
--- a/include/asm-powerpc/fptest.h
+++ b/include/asm-powerpc/fptest.h
@@ -7,11 +7,11 @@
static inline int fp_kernel_supported(void)
{
-#ifdef CONFIG_MATH_EMULATION
+#ifdef CONFIG_XENO_HW_MATH_EMU
static int once = 0;
if (!once) {
once = 1;
- printk("Warning: CONFIG_MATH_EMULATION defined in kernel\n"
+ printk("Warning: math emulation code defined in kernel\n"
" no kernel-based FPU support for this
platform\n");
}
return 0;
diff --git a/ksrc/arch/powerpc/Kconfig b/ksrc/arch/powerpc/Kconfig
index d630eb9..1f2eeb2 100644
--- a/ksrc/arch/powerpc/Kconfig
+++ b/ksrc/arch/powerpc/Kconfig
@@ -6,6 +6,10 @@ config XENO_FASTSYNCH
bool
default y
+config XENO_HW_MATH_EMU
+ bool
+ default y if MATH_EMU || 8XX_MINIMAL_FPEMU
+
source "kernel/xenomai/nucleus/Kconfig"
menu "Machine"
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