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x86: Demacro CONFIG_PARAVIRT cpu accessors

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Recently, we had a build failure on !CONFIG_PARAVIRT due to a
callback ->wbinvd() clashing with a macro wbinvd().

While we worked around the issue, avoid it in the future by
changing the macro (and a few surrounding ones) to an inline
function.

Signed-off-by: Avi Kivity <avi@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1303632711-21662-1-git-send-email-avi@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Avi Kivity 2011-04-24 11:11:51 +03:00 committed by Ingo Molnar
parent 0f1d9f78ce
commit 15d6aba24d
1 changed files with 71 additions and 14 deletions
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85
arch/x86/include/asm/system.h
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@ -303,24 +303,81 @@ static inline void native_wbinvd(void)
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
#define read_cr0() (native_read_cr0())
#define write_cr0(x) (native_write_cr0(x))
#define read_cr2() (native_read_cr2())
#define write_cr2(x) (native_write_cr2(x))
#define read_cr3() (native_read_cr3())
#define write_cr3(x) (native_write_cr3(x))
#define read_cr4() (native_read_cr4())
#define read_cr4_safe() (native_read_cr4_safe())
#define write_cr4(x) (native_write_cr4(x))
#define wbinvd() (native_wbinvd())
static inline unsigned long read_cr0(void)
{
return native_read_cr0();
}
static inline void write_cr0(unsigned long x)
{
native_write_cr0(x);
}
static inline unsigned long read_cr2(void)
{
return native_read_cr2();
}
static inline void write_cr2(unsigned long x)
{
native_write_cr2(x);
}
static inline unsigned long read_cr3(void)
{
return native_read_cr3();
}
static inline void write_cr3(unsigned long x)
{
native_write_cr3(x);
}
static inline unsigned long read_cr4(void)
{
return native_read_cr4();
}
static inline unsigned long read_cr4_safe(void)
{
return native_read_cr4_safe();
}
static inline void write_cr4(unsigned long x)
{
native_write_cr4(x);
}
static inline void wbinvd(void)
{
native_wbinvd();
}
#ifdef CONFIG_X86_64
#define read_cr8() (native_read_cr8())
#define write_cr8(x) (native_write_cr8(x))
#define load_gs_index native_load_gs_index
static inline unsigned long read_cr8(void)
{
return native_read_cr8();
}
static inline void write_cr8(unsigned long x)
{
native_write_cr8(x);
}
static inline void load_gs_index(unsigned selector)
{
native_load_gs_index(selector);
}
#endif
/* Clear the 'TS' bit */
#define clts() (native_clts())
static inline void clts(void)
{
native_clts();
}
#endif/* CONFIG_PARAVIRT */