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Use <spice/barrier.h> memory barrier

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This commit is contained in:
Alexander Larsson 2010-01-28 14:44:47 +01:00
parent 590e21bc57
commit 9032d5235b
3 changed files with 6 additions and 26 deletions
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8
spice/ipc_ring.h
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@ -107,13 +107,13 @@ typedef struct SPICE_ATTR_PACKED name { \
#define RING_PROD_WAIT(r, wait) \
if (((wait) = RING_IS_FULL(r))) { \
(r)->notify_on_cons = (r)->cons + 1; \
mb(); \
spice_mb(); \
(wait) = RING_IS_FULL(r); \
}
#define RING_PUSH(r, notify) \
(r)->prod++; \
mb(); \
spice_mb(); \
(notify) = (r)->prod == (r)->notify_on_prod;
@ -122,13 +122,13 @@ typedef struct SPICE_ATTR_PACKED name { \
#define RING_CONS_WAIT(r, wait) \
if (((wait) = RING_IS_EMPTY(r))) { \
(r)->notify_on_prod = (r)->prod + 1; \
mb(); \
spice_mb(); \
(wait) = RING_IS_EMPTY(r); \
}
#define RING_POP(r, notify) \
(r)->cons++; \
mb(); \
spice_mb(); \
(notify) = (r)->cons == (r)->notify_on_cons;

12
spice/qxl_dev.h
View File

@ -33,21 +33,11 @@
#define _H_QXL_DEV
#include <spice/types.h>
#include <spice/barrier.h>
#include "ipc_ring.h"
#include "draw.h"
#ifdef __GNUC__
#ifdef __i386__
#define mb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory")
#else
//mfence
#define mb() __asm__ __volatile__ ("lock; addl $0,0(%%rsp)": : :"memory")
#endif
#else
#define mb() __asm {lock add [esp], 0}
#endif
#include <spice/start-packed.h>
#define REDHAT_PCI_VENDOR_ID 0x1b36

12
spice/vdi_dev.h
View File

@ -32,20 +32,10 @@
#define _H_VDI_DEV
#include <spice/types.h>
#include <spice/barrier.h>
#include "ipc_ring.h"
#ifdef __GNUC__
#ifdef __i386__
#define mb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory")
#else
//mfence
#define mb() __asm__ __volatile__ ("lock; addl $0,0(%%rsp)": : :"memory")
#endif
#else
#define mb() __asm {lock add [esp], 0}
#endif
#include <spice/start-packed.h>
#define REDHAT_PCI_VENDOR_ID 0x1b36