patch-2.4.19 linux-2.4.19/arch/mips/sibyte/sb1250/lib_hssubr.S

• Lines: 199
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/mips/sibyte/sb1250/lib_hssubr.S
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/arch/mips/sibyte/sb1250/lib_hssubr.S linux-2.4.19/arch/mips/sibyte/sb1250/lib_hssubr.S
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2000, 2001 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+#include <asm/asm.h>
+#include <asm/addrspace.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+
+		 .set mips64
+
+#define HAZARD SSNOP ; SSNOP ; SSNOP ; SSNOP ; SSNOP ; SSNOP ; SSNOP 
+
+
+/*  *********************************************************************
+    *  hs_read8 - read 8-bit bytes
+    ********************************************************************* */
+
+
+LEAF(hs_read8)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0,v0
+		lb	v0, (a0)
+		and	v0, 0xFF
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_read8)
+
+/*  *********************************************************************
+    *  hs_read16 - read 16-bit shorts
+    ********************************************************************* */
+
+LEAF(hs_read16)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		lh	v0, (a0)
+		and	v0, 0xFFFF
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_read16)
+
+/*  *********************************************************************
+    *  hs_read32 - read 32-bit ints
+    ********************************************************************* */
+
+LEAF(hs_read32)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		lw	v0, (a0)
+		and	v0, 0xFFFFFFFF
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_read32)
+
+/*  *********************************************************************
+    *  hs_read64 - read 64-bit longs
+    ********************************************************************* */
+
+LEAF(hs_read64)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		ld	v0, (a0)
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_read64)
+
+/*  *********************************************************************
+    *  hs_write8 - write 8-bit bytes
+    ********************************************************************* */
+
+LEAF(hs_write8)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		sb	a1, (a0)
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_write8)
+
+/*  *********************************************************************
+    *  hs_write16 - write 16-bit shorts
+    ********************************************************************* */
+
+LEAF(hs_write16)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		sh	a1, (a0)
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_write16)
+
+/*  *********************************************************************
+    *  hs_write32 - write 32-bit longs
+    ********************************************************************* */
+
+LEAF(hs_write32)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		sw	a1, (a0)
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_write32)
+
+/*  *********************************************************************
+    *  hs_write64 - write 64-bit longs
+    ********************************************************************* */
+
+LEAF(hs_write64)
+		mfc0	t2, CP0_STATUS
+		or	t1, t2, ST0_KX
+		mtc0	t1, CP0_STATUS
+		HAZARD
+
+		dli	v0, PHYS_TO_XKSEG_UNCACHED(0)
+		dsll	a0, a0, 32
+		dsrl	a0, a0, 32
+		or	a0, a0, v0
+		sd	a1, (a0)
+
+		mtc0	t2, CP0_STATUS
+		HAZARD
+		j	ra
+END(hs_write64)