Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

9 files changed, 214 insertions, 184 deletions

diff --git a/include/asm-ia64/mmu_context.h b/include/asm-ia64/mmu_context.h
index 0096e7e..e3e5fed 100644
--- a/include/asm-ia64/mmu_context.h
+++ b/include/asm-ia64/mmu_context.h
@@ -132,6 +132,9 @@ reload_context (mm_context_t context)
 	ia64_srlz_i();			/* srlz.i implies srlz.d */
 }
 
+/*
+ * Must be called with preemption off
+ */
 static inline void
 activate_context (struct mm_struct *mm)
 {
diff --git a/include/asm-ia64/sn/addrs.h b/include/asm-ia64/sn/addrs.h
index 1bfdfb4..103d745 100644
--- a/include/asm-ia64/sn/addrs.h
+++ b/include/asm-ia64/sn/addrs.h
@@ -216,6 +216,10 @@
 #define TIO_SWIN_WIDGETNUM(x)		(((x)  >> TIO_SWIN_SIZE_BITS) & TIO_SWIN_WIDGET_MASK)
 
 
+#define TIO_IOSPACE_ADDR(n,x)					\
+	/* Move in the Chiplet ID for TIO Local Block MMR */	\
+	(REMOTE_ADDR(n,x) | 1UL << (NASID_SHIFT - 2))
+
 /*
  * The following macros produce the correct base virtual address for
  * the hub registers. The REMOTE_HUB_* macro produce
@@ -233,13 +237,16 @@
 #define REMOTE_HUB_ADDR(n,x)						\
 	((n & 1) ?							\
 	/* TIO: */							\
-	((volatile u64 *)(GLOBAL_MMR_ADDR(n,x)))			\
-	: /* SHUB: */							\
-	(((x) & BWIN_TOP) ? ((volatile u64 *)(GLOBAL_MMR_ADDR(n,x)))\
+	(is_shub2() ?							\
+	/* TIO on Shub2 */						\
+	(volatile u64 *)(TIO_IOSPACE_ADDR(n,x))				\
+	: /* TIO on shub1 */						\
+	(volatile u64 *)(GLOBAL_MMR_ADDR(n,x)))				\
+									\
+	: /* SHUB1 and SHUB2 MMRs: */					\
+	(((x) & BWIN_TOP) ? ((volatile u64 *)(GLOBAL_MMR_ADDR(n,x)))	\
 	: ((volatile u64 *)(NODE_SWIN_BASE(n,1) + 0x800000 + (x)))))
 
-
-
 #define HUB_L(x)			(*((volatile typeof(*x) *)x))
 #define	HUB_S(x,d)			(*((volatile typeof(*x) *)x) = (d))
 
diff --git a/include/asm-ia64/sn/l1.h b/include/asm-ia64/sn/l1.h
index 08050d3..2e5f0aa 100644
--- a/include/asm-ia64/sn/l1.h
+++ b/include/asm-ia64/sn/l1.h
@@ -33,5 +33,6 @@
 #define L1_BRICKTYPE_PA		0x6a            /* j */
 #define L1_BRICKTYPE_IA		0x6b            /* k */
 #define L1_BRICKTYPE_ATHENA	0x2b            /* + */
+#define L1_BRICKTYPE_DAYTONA	0x7a            /* z */
 
 #endif /* _ASM_IA64_SN_L1_H */
diff --git a/include/asm-ia64/sn/shub_mmr.h b/include/asm-ia64/sn/shub_mmr.h
index 323fa0c..7de1d1d 100644
--- a/include/asm-ia64/sn/shub_mmr.h
+++ b/include/asm-ia64/sn/shub_mmr.h
@@ -14,96 +14,98 @@
 /*                        Register "SH_IPI_INT"                         */
 /*               SHub Inter-Processor Interrupt Registers               */
 /* ==================================================================== */
-#define SH1_IPI_INT                               0x0000000110000380
-#define SH2_IPI_INT                               0x0000000010000380
+#define SH1_IPI_INT			__IA64_UL_CONST(0x0000000110000380)
+#define SH2_IPI_INT			__IA64_UL_CONST(0x0000000010000380)
 
 /*   SH_IPI_INT_TYPE                                                    */
 /*   Description:  Type of Interrupt: 0=INT, 2=PMI, 4=NMI, 5=INIT       */
-#define SH_IPI_INT_TYPE_SHFT                     0
-#define SH_IPI_INT_TYPE_MASK                     0x0000000000000007
+#define SH_IPI_INT_TYPE_SHFT				0
+#define SH_IPI_INT_TYPE_MASK		__IA64_UL_CONST(0x0000000000000007)
 
 /*   SH_IPI_INT_AGT                                                     */
 /*   Description:  Agent, must be 0 for SHub                            */
-#define SH_IPI_INT_AGT_SHFT                      3
-#define SH_IPI_INT_AGT_MASK                      0x0000000000000008
+#define SH_IPI_INT_AGT_SHFT				3
+#define SH_IPI_INT_AGT_MASK		__IA64_UL_CONST(0x0000000000000008)
 
 /*   SH_IPI_INT_PID                                                     */
 /*   Description:  Processor ID, same setting as on targeted McKinley  */
-#define SH_IPI_INT_PID_SHFT                      4
-#define SH_IPI_INT_PID_MASK                      0x00000000000ffff0
+#define SH_IPI_INT_PID_SHFT                      	4
+#define SH_IPI_INT_PID_MASK		__IA64_UL_CONST(0x00000000000ffff0)
 
 /*   SH_IPI_INT_BASE                                                    */
 /*   Description:  Optional interrupt vector area, 2MB aligned          */
-#define SH_IPI_INT_BASE_SHFT                     21
-#define SH_IPI_INT_BASE_MASK                     0x0003ffffffe00000
+#define SH_IPI_INT_BASE_SHFT				21
+#define SH_IPI_INT_BASE_MASK 		__IA64_UL_CONST(0x0003ffffffe00000)
 
 /*   SH_IPI_INT_IDX                                                     */
 /*   Description:  Targeted McKinley interrupt vector                   */
-#define SH_IPI_INT_IDX_SHFT                      52
-#define SH_IPI_INT_IDX_MASK                      0x0ff0000000000000
+#define SH_IPI_INT_IDX_SHFT				52
+#define SH_IPI_INT_IDX_MASK		__IA64_UL_CONST(0x0ff0000000000000)
 
 /*   SH_IPI_INT_SEND                                                    */
 /*   Description:  Send Interrupt Message to PI, This generates a puls  */
-#define SH_IPI_INT_SEND_SHFT                     63
-#define SH_IPI_INT_SEND_MASK                     0x8000000000000000
+#define SH_IPI_INT_SEND_SHFT				63
+#define SH_IPI_INT_SEND_MASK		__IA64_UL_CONST(0x8000000000000000)
 
 /* ==================================================================== */
 /*                     Register "SH_EVENT_OCCURRED"                     */
 /*                    SHub Interrupt Event Occurred                     */
 /* ==================================================================== */
-#define SH1_EVENT_OCCURRED                        0x0000000110010000
-#define SH1_EVENT_OCCURRED_ALIAS                  0x0000000110010008
-#define SH2_EVENT_OCCURRED                        0x0000000010010000
-#define SH2_EVENT_OCCURRED_ALIAS                  0x0000000010010008
+#define SH1_EVENT_OCCURRED		__IA64_UL_CONST(0x0000000110010000)
+#define SH1_EVENT_OCCURRED_ALIAS	__IA64_UL_CONST(0x0000000110010008)
+#define SH2_EVENT_OCCURRED		__IA64_UL_CONST(0x0000000010010000)
+#define SH2_EVENT_OCCURRED_ALIAS 	__IA64_UL_CONST(0x0000000010010008)
 
 /* ==================================================================== */
 /*                     Register "SH_PI_CAM_CONTROL"                     */
 /*                      CRB CAM MMR Access Control                      */
 /* ==================================================================== */
-#define SH1_PI_CAM_CONTROL                        0x0000000120050300
+#define SH1_PI_CAM_CONTROL		__IA64_UL_CONST(0x0000000120050300)
 
 /* ==================================================================== */
 /*                        Register "SH_SHUB_ID"                         */
 /*                            SHub ID Number                            */
 /* ==================================================================== */
-#define SH1_SHUB_ID                               0x0000000110060580
-#define SH1_SHUB_ID_REVISION_SHFT                 28
-#define SH1_SHUB_ID_REVISION_MASK                 0x00000000f0000000
+#define SH1_SHUB_ID			__IA64_UL_CONST(0x0000000110060580)
+#define SH1_SHUB_ID_REVISION_SHFT			28
+#define SH1_SHUB_ID_REVISION_MASK	__IA64_UL_CONST(0x00000000f0000000)
 
 /* ==================================================================== */
 /*                          Register "SH_RTC"                           */
 /*                           Real-time Clock                            */
 /* ==================================================================== */
-#define SH1_RTC                                   0x00000001101c0000
-#define SH2_RTC					  0x00000002101c0000
-#define SH_RTC_MASK                               0x007fffffffffffff
+#define SH1_RTC				__IA64_UL_CONST(0x00000001101c0000)
+#define SH2_RTC				__IA64_UL_CONST(0x00000002101c0000)
+#define SH_RTC_MASK			__IA64_UL_CONST(0x007fffffffffffff)
 
 /* ==================================================================== */
 /*                   Register "SH_PIO_WRITE_STATUS_0|1"                 */
 /*                      PIO Write Status for CPU 0 & 1                  */
 /* ==================================================================== */
-#define SH1_PIO_WRITE_STATUS_0                    0x0000000120070200
-#define SH1_PIO_WRITE_STATUS_1                    0x0000000120070280
-#define SH2_PIO_WRITE_STATUS_0                    0x0000000020070200
-#define SH2_PIO_WRITE_STATUS_1                    0x0000000020070280
-#define SH2_PIO_WRITE_STATUS_2                    0x0000000020070300
-#define SH2_PIO_WRITE_STATUS_3                    0x0000000020070380
+#define SH1_PIO_WRITE_STATUS_0		__IA64_UL_CONST(0x0000000120070200)
+#define SH1_PIO_WRITE_STATUS_1		__IA64_UL_CONST(0x0000000120070280)
+#define SH2_PIO_WRITE_STATUS_0		__IA64_UL_CONST(0x0000000020070200)
+#define SH2_PIO_WRITE_STATUS_1		__IA64_UL_CONST(0x0000000020070280)
+#define SH2_PIO_WRITE_STATUS_2		__IA64_UL_CONST(0x0000000020070300)
+#define SH2_PIO_WRITE_STATUS_3		__IA64_UL_CONST(0x0000000020070380)
 
 /*   SH_PIO_WRITE_STATUS_0_WRITE_DEADLOCK                               */
 /*   Description:  Deadlock response detected                           */
-#define SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_SHFT 1
-#define SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_MASK 0x0000000000000002
+#define SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_SHFT		1
+#define SH_PIO_WRITE_STATUS_WRITE_DEADLOCK_MASK \
+					__IA64_UL_CONST(0x0000000000000002)
 
 /*   SH_PIO_WRITE_STATUS_0_PENDING_WRITE_COUNT                          */
 /*   Description:  Count of currently pending PIO writes                */
-#define SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_SHFT 56
-#define SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_MASK 0x3f00000000000000
+#define SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_SHFT	56
+#define SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_MASK \
+					__IA64_UL_CONST(0x3f00000000000000)
 
 /* ==================================================================== */
 /*                Register "SH_PIO_WRITE_STATUS_0_ALIAS"                */
 /* ==================================================================== */
-#define SH1_PIO_WRITE_STATUS_0_ALIAS              0x0000000120070208
-#define SH2_PIO_WRITE_STATUS_0_ALIAS              0x0000000020070208
+#define SH1_PIO_WRITE_STATUS_0_ALIAS	__IA64_UL_CONST(0x0000000120070208)
+#define SH2_PIO_WRITE_STATUS_0_ALIAS	__IA64_UL_CONST(0x0000000020070208)
 
 /* ==================================================================== */
 /*                     Register "SH_EVENT_OCCURRED"                     */
@@ -111,33 +113,33 @@
 /* ==================================================================== */
 /*   SH_EVENT_OCCURRED_UART_INT                                         */
 /*   Description:  Pending Junk Bus UART Interrupt                      */
-#define SH_EVENT_OCCURRED_UART_INT_SHFT          20
-#define SH_EVENT_OCCURRED_UART_INT_MASK          0x0000000000100000
+#define SH_EVENT_OCCURRED_UART_INT_SHFT			20
+#define SH_EVENT_OCCURRED_UART_INT_MASK	__IA64_UL_CONST(0x0000000000100000)
 
 /*   SH_EVENT_OCCURRED_IPI_INT                                          */
 /*   Description:  Pending IPI Interrupt                                */
-#define SH_EVENT_OCCURRED_IPI_INT_SHFT           28
-#define SH_EVENT_OCCURRED_IPI_INT_MASK           0x0000000010000000
+#define SH_EVENT_OCCURRED_IPI_INT_SHFT			28
+#define SH_EVENT_OCCURRED_IPI_INT_MASK	__IA64_UL_CONST(0x0000000010000000)
 
 /*   SH_EVENT_OCCURRED_II_INT0                                          */
 /*   Description:  Pending II 0 Interrupt                               */
-#define SH_EVENT_OCCURRED_II_INT0_SHFT           29
-#define SH_EVENT_OCCURRED_II_INT0_MASK           0x0000000020000000
+#define SH_EVENT_OCCURRED_II_INT0_SHFT			29
+#define SH_EVENT_OCCURRED_II_INT0_MASK	__IA64_UL_CONST(0x0000000020000000)
 
 /*   SH_EVENT_OCCURRED_II_INT1                                          */
 /*   Description:  Pending II 1 Interrupt                               */
-#define SH_EVENT_OCCURRED_II_INT1_SHFT           30
-#define SH_EVENT_OCCURRED_II_INT1_MASK           0x0000000040000000
+#define SH_EVENT_OCCURRED_II_INT1_SHFT			30
+#define SH_EVENT_OCCURRED_II_INT1_MASK	__IA64_UL_CONST(0x0000000040000000)
 
 /*   SH2_EVENT_OCCURRED_EXTIO_INT2                                      */
 /*   Description:  Pending SHUB 2 EXT IO INT2                           */
-#define SH2_EVENT_OCCURRED_EXTIO_INT2_SHFT       33
-#define SH2_EVENT_OCCURRED_EXTIO_INT2_MASK       0x0000000200000000
+#define SH2_EVENT_OCCURRED_EXTIO_INT2_SHFT		33
+#define SH2_EVENT_OCCURRED_EXTIO_INT2_MASK __IA64_UL_CONST(0x0000000200000000)
 
 /*   SH2_EVENT_OCCURRED_EXTIO_INT3                                      */
 /*   Description:  Pending SHUB 2 EXT IO INT3                           */
-#define SH2_EVENT_OCCURRED_EXTIO_INT3_SHFT       34
-#define SH2_EVENT_OCCURRED_EXTIO_INT3_MASK       0x0000000400000000
+#define SH2_EVENT_OCCURRED_EXTIO_INT3_SHFT		34
+#define SH2_EVENT_OCCURRED_EXTIO_INT3_MASK __IA64_UL_CONST(0x0000000400000000)
 
 #define SH_ALL_INT_MASK \
 	(SH_EVENT_OCCURRED_UART_INT_MASK | SH_EVENT_OCCURRED_IPI_INT_MASK | \
@@ -149,310 +151,310 @@
 /* ==================================================================== */
 /*                         LEDS                                         */
 /* ==================================================================== */
-#define SH1_REAL_JUNK_BUS_LED0			 0x7fed00000UL
-#define SH1_REAL_JUNK_BUS_LED1			 0x7fed10000UL
-#define SH1_REAL_JUNK_BUS_LED2			 0x7fed20000UL
-#define SH1_REAL_JUNK_BUS_LED3			 0x7fed30000UL
+#define SH1_REAL_JUNK_BUS_LED0			0x7fed00000UL
+#define SH1_REAL_JUNK_BUS_LED1			0x7fed10000UL
+#define SH1_REAL_JUNK_BUS_LED2			0x7fed20000UL
+#define SH1_REAL_JUNK_BUS_LED3			0x7fed30000UL
 
-#define SH2_REAL_JUNK_BUS_LED0			 0xf0000000UL
-#define SH2_REAL_JUNK_BUS_LED1			 0xf0010000UL
-#define SH2_REAL_JUNK_BUS_LED2			 0xf0020000UL
-#define SH2_REAL_JUNK_BUS_LED3			 0xf0030000UL
+#define SH2_REAL_JUNK_BUS_LED0			0xf0000000UL
+#define SH2_REAL_JUNK_BUS_LED1			0xf0010000UL
+#define SH2_REAL_JUNK_BUS_LED2			0xf0020000UL
+#define SH2_REAL_JUNK_BUS_LED3			0xf0030000UL
 
 /* ==================================================================== */
 /*                         Register "SH1_PTC_0"                         */
 /*       Puge Translation Cache Message Configuration Information       */
 /* ==================================================================== */
-#define SH1_PTC_0                                 0x00000001101a0000
+#define SH1_PTC_0			__IA64_UL_CONST(0x00000001101a0000)
 
 /*   SH1_PTC_0_A                                                        */
 /*   Description:  Type                                                 */
-#define SH1_PTC_0_A_SHFT                          0
+#define SH1_PTC_0_A_SHFT				0
 
 /*   SH1_PTC_0_PS                                                       */
 /*   Description:  Page Size                                            */
-#define SH1_PTC_0_PS_SHFT                         2
+#define SH1_PTC_0_PS_SHFT				2
 
 /*   SH1_PTC_0_RID                                                      */
 /*   Description:  Region ID                                            */
-#define SH1_PTC_0_RID_SHFT                        8
+#define SH1_PTC_0_RID_SHFT				8
 
 /*   SH1_PTC_0_START                                                    */
 /*   Description:  Start                                                */
-#define SH1_PTC_0_START_SHFT                      63
+#define SH1_PTC_0_START_SHFT				63
 
 /* ==================================================================== */
 /*                         Register "SH1_PTC_1"                         */
 /*       Puge Translation Cache Message Configuration Information       */
 /* ==================================================================== */
-#define SH1_PTC_1                                 0x00000001101a0080
+#define SH1_PTC_1			__IA64_UL_CONST(0x00000001101a0080)
 
 /*   SH1_PTC_1_START                                                    */
 /*   Description:  PTC_1 Start                                          */
-#define SH1_PTC_1_START_SHFT                      63
-
+#define SH1_PTC_1_START_SHFT				63
 
 /* ==================================================================== */
 /*                         Register "SH2_PTC"                           */
 /*       Puge Translation Cache Message Configuration Information       */
 /* ==================================================================== */
-#define SH2_PTC                                   0x0000000170000000
+#define SH2_PTC				__IA64_UL_CONST(0x0000000170000000)
 
 /*   SH2_PTC_A                                                          */
 /*   Description:  Type                                                 */
-#define SH2_PTC_A_SHFT                            0
+#define SH2_PTC_A_SHFT					0
 
 /*   SH2_PTC_PS                                                         */
 /*   Description:  Page Size                                            */
-#define SH2_PTC_PS_SHFT                           2
+#define SH2_PTC_PS_SHFT					2
 
 /*   SH2_PTC_RID                                                      */
 /*   Description:  Region ID                                            */
-#define SH2_PTC_RID_SHFT                          4
+#define SH2_PTC_RID_SHFT				4
 
 /*   SH2_PTC_START                                                      */
 /*   Description:  Start                                                */
-#define SH2_PTC_START_SHFT                        63
+#define SH2_PTC_START_SHFT				63
 
 /*   SH2_PTC_ADDR_RID                                                   */
 /*   Description:  Region ID                                            */
-#define SH2_PTC_ADDR_SHFT                         4
-#define SH2_PTC_ADDR_MASK                         0x1ffffffffffff000
+#define SH2_PTC_ADDR_SHFT				4
+#define SH2_PTC_ADDR_MASK		__IA64_UL_CONST(0x1ffffffffffff000)
 
 /* ==================================================================== */
 /*                    Register "SH_RTC1_INT_CONFIG"                     */
 /*                SHub RTC 1 Interrupt Config Registers                 */
 /* ==================================================================== */
 
-#define SH1_RTC1_INT_CONFIG                      0x0000000110001480
-#define SH2_RTC1_INT_CONFIG                      0x0000000010001480
-#define SH_RTC1_INT_CONFIG_MASK                  0x0ff3ffffffefffff
-#define SH_RTC1_INT_CONFIG_INIT                  0x0000000000000000
+#define SH1_RTC1_INT_CONFIG		__IA64_UL_CONST(0x0000000110001480)
+#define SH2_RTC1_INT_CONFIG		__IA64_UL_CONST(0x0000000010001480)
+#define SH_RTC1_INT_CONFIG_MASK		__IA64_UL_CONST(0x0ff3ffffffefffff)
+#define SH_RTC1_INT_CONFIG_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_RTC1_INT_CONFIG_TYPE                                            */
 /*   Description:  Type of Interrupt: 0=INT, 2=PMI, 4=NMI, 5=INIT       */
-#define SH_RTC1_INT_CONFIG_TYPE_SHFT             0
-#define SH_RTC1_INT_CONFIG_TYPE_MASK             0x0000000000000007
+#define SH_RTC1_INT_CONFIG_TYPE_SHFT			0
+#define SH_RTC1_INT_CONFIG_TYPE_MASK	__IA64_UL_CONST(0x0000000000000007)
 
 /*   SH_RTC1_INT_CONFIG_AGT                                             */
 /*   Description:  Agent, must be 0 for SHub                            */
-#define SH_RTC1_INT_CONFIG_AGT_SHFT              3
-#define SH_RTC1_INT_CONFIG_AGT_MASK              0x0000000000000008
+#define SH_RTC1_INT_CONFIG_AGT_SHFT			3
+#define SH_RTC1_INT_CONFIG_AGT_MASK	__IA64_UL_CONST(0x0000000000000008)
 
 /*   SH_RTC1_INT_CONFIG_PID                                             */
 /*   Description:  Processor ID, same setting as on targeted McKinley  */
-#define SH_RTC1_INT_CONFIG_PID_SHFT              4
-#define SH_RTC1_INT_CONFIG_PID_MASK              0x00000000000ffff0
+#define SH_RTC1_INT_CONFIG_PID_SHFT			4
+#define SH_RTC1_INT_CONFIG_PID_MASK	__IA64_UL_CONST(0x00000000000ffff0)
 
 /*   SH_RTC1_INT_CONFIG_BASE                                            */
 /*   Description:  Optional interrupt vector area, 2MB aligned          */
-#define SH_RTC1_INT_CONFIG_BASE_SHFT             21
-#define SH_RTC1_INT_CONFIG_BASE_MASK             0x0003ffffffe00000
+#define SH_RTC1_INT_CONFIG_BASE_SHFT			21
+#define SH_RTC1_INT_CONFIG_BASE_MASK	__IA64_UL_CONST(0x0003ffffffe00000)
 
 /*   SH_RTC1_INT_CONFIG_IDX                                             */
 /*   Description:  Targeted McKinley interrupt vector                   */
-#define SH_RTC1_INT_CONFIG_IDX_SHFT              52
-#define SH_RTC1_INT_CONFIG_IDX_MASK              0x0ff0000000000000
+#define SH_RTC1_INT_CONFIG_IDX_SHFT			52
+#define SH_RTC1_INT_CONFIG_IDX_MASK	__IA64_UL_CONST(0x0ff0000000000000)
 
 /* ==================================================================== */
 /*                    Register "SH_RTC1_INT_ENABLE"                     */
 /*                SHub RTC 1 Interrupt Enable Registers                 */
 /* ==================================================================== */
 
-#define SH1_RTC1_INT_ENABLE                      0x0000000110001500
-#define SH2_RTC1_INT_ENABLE                      0x0000000010001500
-#define SH_RTC1_INT_ENABLE_MASK                  0x0000000000000001
-#define SH_RTC1_INT_ENABLE_INIT                  0x0000000000000000
+#define SH1_RTC1_INT_ENABLE		__IA64_UL_CONST(0x0000000110001500)
+#define SH2_RTC1_INT_ENABLE		__IA64_UL_CONST(0x0000000010001500)
+#define SH_RTC1_INT_ENABLE_MASK		__IA64_UL_CONST(0x0000000000000001)
+#define SH_RTC1_INT_ENABLE_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_RTC1_INT_ENABLE_RTC1_ENABLE                                     */
 /*   Description:  Enable RTC 1 Interrupt                               */
-#define SH_RTC1_INT_ENABLE_RTC1_ENABLE_SHFT      0
-#define SH_RTC1_INT_ENABLE_RTC1_ENABLE_MASK      0x0000000000000001
+#define SH_RTC1_INT_ENABLE_RTC1_ENABLE_SHFT		0
+#define SH_RTC1_INT_ENABLE_RTC1_ENABLE_MASK \
+					__IA64_UL_CONST(0x0000000000000001)
 
 /* ==================================================================== */
 /*                    Register "SH_RTC2_INT_CONFIG"                     */
 /*                SHub RTC 2 Interrupt Config Registers                 */
 /* ==================================================================== */
 
-#define SH1_RTC2_INT_CONFIG                      0x0000000110001580
-#define SH2_RTC2_INT_CONFIG                      0x0000000010001580
-#define SH_RTC2_INT_CONFIG_MASK                  0x0ff3ffffffefffff
-#define SH_RTC2_INT_CONFIG_INIT                  0x0000000000000000
+#define SH1_RTC2_INT_CONFIG		__IA64_UL_CONST(0x0000000110001580)
+#define SH2_RTC2_INT_CONFIG		__IA64_UL_CONST(0x0000000010001580)
+#define SH_RTC2_INT_CONFIG_MASK		__IA64_UL_CONST(0x0ff3ffffffefffff)
+#define SH_RTC2_INT_CONFIG_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_RTC2_INT_CONFIG_TYPE                                            */
 /*   Description:  Type of Interrupt: 0=INT, 2=PMI, 4=NMI, 5=INIT       */
-#define SH_RTC2_INT_CONFIG_TYPE_SHFT             0
-#define SH_RTC2_INT_CONFIG_TYPE_MASK             0x0000000000000007
+#define SH_RTC2_INT_CONFIG_TYPE_SHFT			0
+#define SH_RTC2_INT_CONFIG_TYPE_MASK	__IA64_UL_CONST(0x0000000000000007)
 
 /*   SH_RTC2_INT_CONFIG_AGT                                             */
 /*   Description:  Agent, must be 0 for SHub                            */
-#define SH_RTC2_INT_CONFIG_AGT_SHFT              3
-#define SH_RTC2_INT_CONFIG_AGT_MASK              0x0000000000000008
+#define SH_RTC2_INT_CONFIG_AGT_SHFT			3
+#define SH_RTC2_INT_CONFIG_AGT_MASK	__IA64_UL_CONST(0x0000000000000008)
 
 /*   SH_RTC2_INT_CONFIG_PID                                             */
 /*   Description:  Processor ID, same setting as on targeted McKinley  */
-#define SH_RTC2_INT_CONFIG_PID_SHFT              4
-#define SH_RTC2_INT_CONFIG_PID_MASK              0x00000000000ffff0
+#define SH_RTC2_INT_CONFIG_PID_SHFT			4
+#define SH_RTC2_INT_CONFIG_PID_MASK	__IA64_UL_CONST(0x00000000000ffff0)
 
 /*   SH_RTC2_INT_CONFIG_BASE                                            */
 /*   Description:  Optional interrupt vector area, 2MB aligned          */
-#define SH_RTC2_INT_CONFIG_BASE_SHFT             21
-#define SH_RTC2_INT_CONFIG_BASE_MASK             0x0003ffffffe00000
+#define SH_RTC2_INT_CONFIG_BASE_SHFT			21
+#define SH_RTC2_INT_CONFIG_BASE_MASK	__IA64_UL_CONST(0x0003ffffffe00000)
 
 /*   SH_RTC2_INT_CONFIG_IDX                                             */
 /*   Description:  Targeted McKinley interrupt vector                   */
-#define SH_RTC2_INT_CONFIG_IDX_SHFT              52
-#define SH_RTC2_INT_CONFIG_IDX_MASK              0x0ff0000000000000
+#define SH_RTC2_INT_CONFIG_IDX_SHFT			52
+#define SH_RTC2_INT_CONFIG_IDX_MASK	__IA64_UL_CONST(0x0ff0000000000000)
 
 /* ==================================================================== */
 /*                    Register "SH_RTC2_INT_ENABLE"                     */
 /*                SHub RTC 2 Interrupt Enable Registers                 */
 /* ==================================================================== */
 
-#define SH1_RTC2_INT_ENABLE                      0x0000000110001600
-#define SH2_RTC2_INT_ENABLE                      0x0000000010001600
-#define SH_RTC2_INT_ENABLE_MASK                  0x0000000000000001
-#define SH_RTC2_INT_ENABLE_INIT                  0x0000000000000000
+#define SH1_RTC2_INT_ENABLE		__IA64_UL_CONST(0x0000000110001600)
+#define SH2_RTC2_INT_ENABLE		__IA64_UL_CONST(0x0000000010001600)
+#define SH_RTC2_INT_ENABLE_MASK		__IA64_UL_CONST(0x0000000000000001)
+#define SH_RTC2_INT_ENABLE_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_RTC2_INT_ENABLE_RTC2_ENABLE                                     */
 /*   Description:  Enable RTC 2 Interrupt                               */
-#define SH_RTC2_INT_ENABLE_RTC2_ENABLE_SHFT      0
-#define SH_RTC2_INT_ENABLE_RTC2_ENABLE_MASK      0x0000000000000001
+#define SH_RTC2_INT_ENABLE_RTC2_ENABLE_SHFT		0
+#define SH_RTC2_INT_ENABLE_RTC2_ENABLE_MASK \
+					__IA64_UL_CONST(0x0000000000000001)
 
 /* ==================================================================== */
 /*                    Register "SH_RTC3_INT_CONFIG"                     */
 /*                SHub RTC 3 Interrupt Config Registers                 */
 /* ==================================================================== */
 
-#define SH1_RTC3_INT_CONFIG                      0x0000000110001680
-#define SH2_RTC3_INT_CONFIG                      0x0000000010001680
-#define SH_RTC3_INT_CONFIG_MASK                  0x0ff3ffffffefffff
-#define SH_RTC3_INT_CONFIG_INIT                  0x0000000000000000
+#define SH1_RTC3_INT_CONFIG		__IA64_UL_CONST(0x0000000110001680)
+#define SH2_RTC3_INT_CONFIG		__IA64_UL_CONST(0x0000000010001680)
+#define SH_RTC3_INT_CONFIG_MASK		__IA64_UL_CONST(0x0ff3ffffffefffff)
+#define SH_RTC3_INT_CONFIG_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_RTC3_INT_CONFIG_TYPE                                            */
 /*   Description:  Type of Interrupt: 0=INT, 2=PMI, 4=NMI, 5=INIT       */
-#define SH_RTC3_INT_CONFIG_TYPE_SHFT             0
-#define SH_RTC3_INT_CONFIG_TYPE_MASK             0x0000000000000007
+#define SH_RTC3_INT_CONFIG_TYPE_SHFT			0
+#define SH_RTC3_INT_CONFIG_TYPE_MASK	__IA64_UL_CONST(0x0000000000000007)
 
 /*   SH_RTC3_INT_CONFIG_AGT                                             */
 /*   Description:  Agent, must be 0 for SHub                            */
-#define SH_RTC3_INT_CONFIG_AGT_SHFT              3
-#define SH_RTC3_INT_CONFIG_AGT_MASK              0x0000000000000008
+#define SH_RTC3_INT_CONFIG_AGT_SHFT			3
+#define SH_RTC3_INT_CONFIG_AGT_MASK	__IA64_UL_CONST(0x0000000000000008)
 
 /*   SH_RTC3_INT_CONFIG_PID                                             */
 /*   Description:  Processor ID, same setting as on targeted McKinley  */
-#define SH_RTC3_INT_CONFIG_PID_SHFT              4
-#define SH_RTC3_INT_CONFIG_PID_MASK              0x00000000000ffff0
+#define SH_RTC3_INT_CONFIG_PID_SHFT			4
+#define SH_RTC3_INT_CONFIG_PID_MASK	__IA64_UL_CONST(0x00000000000ffff0)
 
 /*   SH_RTC3_INT_CONFIG_BASE                                            */
 /*   Description:  Optional interrupt vector area, 2MB aligned          */
-#define SH_RTC3_INT_CONFIG_BASE_SHFT             21
-#define SH_RTC3_INT_CONFIG_BASE_MASK             0x0003ffffffe00000
+#define SH_RTC3_INT_CONFIG_BASE_SHFT			21
+#define SH_RTC3_INT_CONFIG_BASE_MASK	__IA64_UL_CONST(0x0003ffffffe00000)
 
 /*   SH_RTC3_INT_CONFIG_IDX                                             */
 /*   Description:  Targeted McKinley interrupt vector                   */
-#define SH_RTC3_INT_CONFIG_IDX_SHFT              52
-#define SH_RTC3_INT_CONFIG_IDX_MASK              0x0ff0000000000000
+#define SH_RTC3_INT_CONFIG_IDX_SHFT			52
+#define SH_RTC3_INT_CONFIG_IDX_MASK	__IA64_UL_CONST(0x0ff0000000000000)
 
 /* ==================================================================== */
 /*                    Register "SH_RTC3_INT_ENABLE"                     */
 /*                SHub RTC 3 Interrupt Enable Registers                 */
 /* ==================================================================== */
 
-#define SH1_RTC3_INT_ENABLE                      0x0000000110001700
-#define SH2_RTC3_INT_ENABLE                      0x0000000010001700
-#define SH_RTC3_INT_ENABLE_MASK                  0x0000000000000001
-#define SH_RTC3_INT_ENABLE_INIT                  0x0000000000000000
+#define SH1_RTC3_INT_ENABLE		__IA64_UL_CONST(0x0000000110001700)
+#define SH2_RTC3_INT_ENABLE		__IA64_UL_CONST(0x0000000010001700)
+#define SH_RTC3_INT_ENABLE_MASK		__IA64_UL_CONST(0x0000000000000001)
+#define SH_RTC3_INT_ENABLE_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_RTC3_INT_ENABLE_RTC3_ENABLE                                     */
 /*   Description:  Enable RTC 3 Interrupt                               */
-#define SH_RTC3_INT_ENABLE_RTC3_ENABLE_SHFT      0
-#define SH_RTC3_INT_ENABLE_RTC3_ENABLE_MASK      0x0000000000000001
+#define SH_RTC3_INT_ENABLE_RTC3_ENABLE_SHFT		0
+#define SH_RTC3_INT_ENABLE_RTC3_ENABLE_MASK \
+					__IA64_UL_CONST(0x0000000000000001)
 
 /*   SH_EVENT_OCCURRED_RTC1_INT                                         */
 /*   Description:  Pending RTC 1 Interrupt                              */
-#define SH_EVENT_OCCURRED_RTC1_INT_SHFT          24
-#define SH_EVENT_OCCURRED_RTC1_INT_MASK          0x0000000001000000
+#define SH_EVENT_OCCURRED_RTC1_INT_SHFT			24
+#define SH_EVENT_OCCURRED_RTC1_INT_MASK	__IA64_UL_CONST(0x0000000001000000)
 
 /*   SH_EVENT_OCCURRED_RTC2_INT                                         */
 /*   Description:  Pending RTC 2 Interrupt                              */
-#define SH_EVENT_OCCURRED_RTC2_INT_SHFT          25
-#define SH_EVENT_OCCURRED_RTC2_INT_MASK          0x0000000002000000
+#define SH_EVENT_OCCURRED_RTC2_INT_SHFT			25
+#define SH_EVENT_OCCURRED_RTC2_INT_MASK	__IA64_UL_CONST(0x0000000002000000)
 
 /*   SH_EVENT_OCCURRED_RTC3_INT                                         */
 /*   Description:  Pending RTC 3 Interrupt                              */
-#define SH_EVENT_OCCURRED_RTC3_INT_SHFT          26
-#define SH_EVENT_OCCURRED_RTC3_INT_MASK          0x0000000004000000
+#define SH_EVENT_OCCURRED_RTC3_INT_SHFT			26
+#define SH_EVENT_OCCURRED_RTC3_INT_MASK	__IA64_UL_CONST(0x0000000004000000)
 
 /* ==================================================================== */
 /*                       Register "SH_IPI_ACCESS"                       */
 /*                 CPU interrupt Access Permission Bits                 */
 /* ==================================================================== */
 
-#define SH1_IPI_ACCESS                           0x0000000110060480
-#define SH2_IPI_ACCESS0                          0x0000000010060c00
-#define SH2_IPI_ACCESS1                          0x0000000010060c80
-#define SH2_IPI_ACCESS2                          0x0000000010060d00
-#define SH2_IPI_ACCESS3                          0x0000000010060d80
+#define SH1_IPI_ACCESS			__IA64_UL_CONST(0x0000000110060480)
+#define SH2_IPI_ACCESS0			__IA64_UL_CONST(0x0000000010060c00)
+#define SH2_IPI_ACCESS1			__IA64_UL_CONST(0x0000000010060c80)
+#define SH2_IPI_ACCESS2			__IA64_UL_CONST(0x0000000010060d00)
+#define SH2_IPI_ACCESS3			__IA64_UL_CONST(0x0000000010060d80)
 
 /* ==================================================================== */
 /*                        Register "SH_INT_CMPB"                        */
 /*                  RTC Compare Value for Processor B                   */
 /* ==================================================================== */
 
-#define SH1_INT_CMPB                             0x00000001101b0080
-#define SH2_INT_CMPB                             0x00000000101b0080
-#define SH_INT_CMPB_MASK                         0x007fffffffffffff
-#define SH_INT_CMPB_INIT                         0x0000000000000000
+#define SH1_INT_CMPB			__IA64_UL_CONST(0x00000001101b0080)
+#define SH2_INT_CMPB			__IA64_UL_CONST(0x00000000101b0080)
+#define SH_INT_CMPB_MASK		__IA64_UL_CONST(0x007fffffffffffff)
+#define SH_INT_CMPB_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_INT_CMPB_REAL_TIME_CMPB                                         */
 /*   Description:  Real Time Clock Compare                              */
-#define SH_INT_CMPB_REAL_TIME_CMPB_SHFT          0
-#define SH_INT_CMPB_REAL_TIME_CMPB_MASK          0x007fffffffffffff
+#define SH_INT_CMPB_REAL_TIME_CMPB_SHFT			0
+#define SH_INT_CMPB_REAL_TIME_CMPB_MASK	__IA64_UL_CONST(0x007fffffffffffff)
 
 /* ==================================================================== */
 /*                        Register "SH_INT_CMPC"                        */
 /*                  RTC Compare Value for Processor C                   */
 /* ==================================================================== */
 
-#define SH1_INT_CMPC                             0x00000001101b0100
-#define SH2_INT_CMPC                             0x00000000101b0100
-#define SH_INT_CMPC_MASK                         0x007fffffffffffff
-#define SH_INT_CMPC_INIT                         0x0000000000000000
+#define SH1_INT_CMPC			__IA64_UL_CONST(0x00000001101b0100)
+#define SH2_INT_CMPC			__IA64_UL_CONST(0x00000000101b0100)
+#define SH_INT_CMPC_MASK		__IA64_UL_CONST(0x007fffffffffffff)
+#define SH_INT_CMPC_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_INT_CMPC_REAL_TIME_CMPC                                         */
 /*   Description:  Real Time Clock Compare                              */
-#define SH_INT_CMPC_REAL_TIME_CMPC_SHFT          0
-#define SH_INT_CMPC_REAL_TIME_CMPC_MASK          0x007fffffffffffff
+#define SH_INT_CMPC_REAL_TIME_CMPC_SHFT			0
+#define SH_INT_CMPC_REAL_TIME_CMPC_MASK	__IA64_UL_CONST(0x007fffffffffffff)
 
 /* ==================================================================== */
 /*                        Register "SH_INT_CMPD"                        */
 /*                  RTC Compare Value for Processor D                   */
 /* ==================================================================== */
 
-#define SH1_INT_CMPD                             0x00000001101b0180
-#define SH2_INT_CMPD                             0x00000000101b0180
-#define SH_INT_CMPD_MASK                         0x007fffffffffffff
-#define SH_INT_CMPD_INIT                         0x0000000000000000
+#define SH1_INT_CMPD			__IA64_UL_CONST(0x00000001101b0180)
+#define SH2_INT_CMPD			__IA64_UL_CONST(0x00000000101b0180)
+#define SH_INT_CMPD_MASK		__IA64_UL_CONST(0x007fffffffffffff)
+#define SH_INT_CMPD_INIT		__IA64_UL_CONST(0x0000000000000000)
 
 /*   SH_INT_CMPD_REAL_TIME_CMPD                                         */
 /*   Description:  Real Time Clock Compare                              */
-#define SH_INT_CMPD_REAL_TIME_CMPD_SHFT          0
-#define SH_INT_CMPD_REAL_TIME_CMPD_MASK          0x007fffffffffffff
+#define SH_INT_CMPD_REAL_TIME_CMPD_SHFT			0
+#define SH_INT_CMPD_REAL_TIME_CMPD_MASK	__IA64_UL_CONST(0x007fffffffffffff)
 
 /* ==================================================================== */
 /*                Register "SH_MD_DQLP_MMR_DIR_PRIVEC0"                 */
 /*                      privilege vector for acc=0                      */
 /* ==================================================================== */
-
-#define SH1_MD_DQLP_MMR_DIR_PRIVEC0              0x0000000100030300
+#define SH1_MD_DQLP_MMR_DIR_PRIVEC0	__IA64_UL_CONST(0x0000000100030300)
 
 /* ==================================================================== */
 /*                Register "SH_MD_DQRP_MMR_DIR_PRIVEC0"                 */
 /*                      privilege vector for acc=0                      */
 /* ==================================================================== */
-
-#define SH1_MD_DQRP_MMR_DIR_PRIVEC0              0x0000000100050300
+#define SH1_MD_DQRP_MMR_DIR_PRIVEC0	__IA64_UL_CONST(0x0000000100050300)
 
 /* ==================================================================== */
 /* Some MMRs are functionally identical (or close enough) on both SHUB1 */
@@ -484,17 +486,17 @@
 /*                    Engine 0 Control and Status Register                    */
 /* ========================================================================== */
 
-#define SH2_BT_ENG_CSR_0                         0x0000000030040000
-#define SH2_BT_ENG_SRC_ADDR_0                    0x0000000030040080
-#define SH2_BT_ENG_DEST_ADDR_0                   0x0000000030040100
-#define SH2_BT_ENG_NOTIF_ADDR_0                  0x0000000030040180
+#define SH2_BT_ENG_CSR_0		__IA64_UL_CONST(0x0000000030040000)
+#define SH2_BT_ENG_SRC_ADDR_0		__IA64_UL_CONST(0x0000000030040080)
+#define SH2_BT_ENG_DEST_ADDR_0		__IA64_UL_CONST(0x0000000030040100)
+#define SH2_BT_ENG_NOTIF_ADDR_0		__IA64_UL_CONST(0x0000000030040180)
 
 /* ========================================================================== */
 /*                       BTE interfaces 1-3                                   */
 /* ========================================================================== */
 
-#define SH2_BT_ENG_CSR_1                         0x0000000030050000
-#define SH2_BT_ENG_CSR_2                         0x0000000030060000
-#define SH2_BT_ENG_CSR_3                         0x0000000030070000
+#define SH2_BT_ENG_CSR_1		__IA64_UL_CONST(0x0000000030050000)
+#define SH2_BT_ENG_CSR_2		__IA64_UL_CONST(0x0000000030060000)
+#define SH2_BT_ENG_CSR_3		__IA64_UL_CONST(0x0000000030070000)
 
 #endif /* _ASM_IA64_SN_SHUB_MMR_H */
diff --git a/include/asm-ia64/sn/simulator.h b/include/asm-ia64/sn/simulator.h
index 78eb4f8..cf770e2 100644
--- a/include/asm-ia64/sn/simulator.h
+++ b/include/asm-ia64/sn/simulator.h
@@ -10,16 +10,17 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_IA64_SGI_SN_SIM
-
 #define SNMAGIC 0xaeeeeeee8badbeefL
-#define IS_RUNNING_ON_SIMULATOR() ({long sn; asm("mov %0=cpuid[%1]" : "=r"(sn) : "r"(2)); sn == SNMAGIC;})
-
-#define SIMULATOR_SLEEP()	asm("nop.i 0x8beef")
+#define IS_MEDUSA()			({long sn; asm("mov %0=cpuid[%1]" : "=r"(sn) : "r"(2)); sn == SNMAGIC;})
 
+#ifdef CONFIG_IA64_SGI_SN_SIM
+#define SIMULATOR_SLEEP()		asm("nop.i 0x8beef")
+#define IS_RUNNING_ON_SIMULATOR() 	(sn_prom_type)
+#define IS_RUNNING_ON_FAKE_PROM()	(sn_prom_type == 2)
+extern int sn_prom_type;		/* 0=hardware, 1=medusa/realprom, 2=medusa/fakeprom */
 #else
-
 #define IS_RUNNING_ON_SIMULATOR()	(0)
+#define IS_RUNNING_ON_FAKE_PROM()	(0)
 #define SIMULATOR_SLEEP()
 
 #endif
diff --git a/include/asm-ia64/sn/sn2/sn_hwperf.h b/include/asm-ia64/sn/sn2/sn_hwperf.h
index b0c4d6d..df75f4c 100644
--- a/include/asm-ia64/sn/sn2/sn_hwperf.h
+++ b/include/asm-ia64/sn/sn2/sn_hwperf.h
@@ -223,4 +223,6 @@ struct sn_hwperf_ioctl_args {
 #define SN_HWPERF_OP_RECONFIGURE	253
 #define SN_HWPERF_OP_INVAL		254
 
+int sn_topology_open(struct inode *inode, struct file *file);
+int sn_topology_release(struct inode *inode, struct file *file);
 #endif				/* SN_HWPERF_H */
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
index eb0395a..1455375 100644
--- a/include/asm-ia64/sn/sn_sal.h
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -132,6 +132,8 @@
 #define SALRET_INVALID_ARG	(-2)
 #define SALRET_ERROR		(-3)
 
+#define SN_SAL_FAKE_PROM			   0x02009999
+
 
 /**
  * sn_sal_rev_major - get the major SGI SAL revision number
@@ -1105,4 +1107,12 @@ ia64_sn_bte_recovery(nasid_t nasid)
 	return (int) rv.status;
 }
 
+static inline int
+ia64_sn_is_fake_prom(void)
+{
+	struct ia64_sal_retval rv;
+	SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
+	return (rv.status == 0);
+}
+
 #endif /* _ASM_IA64_SN_SN_SAL_H */
diff --git a/include/asm-ia64/sn/tioca_provider.h b/include/asm-ia64/sn/tioca_provider.h
index b6acc22..5ccec60 100644
--- a/include/asm-ia64/sn/tioca_provider.h
+++ b/include/asm-ia64/sn/tioca_provider.h
@@ -201,6 +201,7 @@ tioca_tlbflush(struct tioca_kernel *tioca_kernel)
 }
 
 extern uint32_t	tioca_gart_found;
+extern struct list_head tioca_list;
 extern int tioca_init_provider(void);
 extern void tioca_fastwrite_enable(struct tioca_kernel *tioca_kern);
 #endif /* _ASM_IA64_SN_TIO_CA_AGP_PROVIDER_H */
diff --git a/include/asm-ia64/vga.h b/include/asm-ia64/vga.h
index 1f446d6..bc3349f 100644
--- a/include/asm-ia64/vga.h
+++ b/include/asm-ia64/vga.h
@@ -14,7 +14,10 @@
  * videoram directly without any black magic.
  */
 
-#define VGA_MAP_MEM(x)	((unsigned long) ioremap((x), 0))
+extern unsigned long vga_console_iobase;
+extern unsigned long vga_console_membase;
+
+#define VGA_MAP_MEM(x)	((unsigned long) ioremap(vga_console_membase + (x), 0))
 
 #define vga_readb(x)	(*(x))
 #define vga_writeb(x,y)	(*(y) = (x))