WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/include/trap/regwin.h

 /*
  * Copyright (C) 2005 Jakub Jermar
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
+ *
  * - Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
  * - Redistributions in binary form must reproduce the above copyright
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  * - The name of the author may not be used to endorse or promote products
  *   derived from this software without specific prior written permission.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /** @addtogroup sparc64interrupt
  * @{
  */
 /**
  * @file
  * @brief This file contains register window trap handlers.
  */
 #ifndef __sparc64_REGWIN_H__
 #define __sparc64_REGWIN_H__
 #include <arch/stack.h>
 #include <arch/arch.h>
 #define TT_CLEAN_WINDOW         0x24
-#define TT_SPILL_0_NORMAL       0x80
+#define TT_SPILL_0_NORMAL       0x80    /* kernel spills */
+#define TT_SPILL_1_NORMAL       0x84    /* userspace spills */
+#define TT_SPILL_2_NORMAL       0x88    /* spills to userspace window buffer */
+#define TT_SPILL_0_OTHER        0xa0    /* spills to userspace window buffer */
-#define TT_FILL_0_NORMAL        0xc0
+#define TT_FILL_0_NORMAL        0xc0    /* kernel fills */
+#define TT_FILL_1_NORMAL        0xc4    /* userspace fills */
 #define REGWIN_HANDLER_SIZE     128
 #define CLEAN_WINDOW_HANDLER_SIZE   REGWIN_HANDLER_SIZE
 #define SPILL_HANDLER_SIZE      REGWIN_HANDLER_SIZE
 #define FILL_HANDLER_SIZE       REGWIN_HANDLER_SIZE
 /* Window Save Area offsets. */
 #define L0_OFFSET   0
 #define L1_OFFSET   8
 #define L2_OFFSET   16
 #define L3_OFFSET   24
 #define L4_OFFSET   32
 #define L5_OFFSET   40
 #define L6_OFFSET   48
 #define L7_OFFSET   56
 #define I0_OFFSET   64
 #define I1_OFFSET   72
 #define I2_OFFSET   80
 #define I3_OFFSET   88
 #define I4_OFFSET   96
 #define I5_OFFSET   104
 #define I6_OFFSET   112
 #define I7_OFFSET   120
 #ifdef __ASM__
 /*
  * Macro used by the nucleus and the primary context 0 during normal and other spills.
  */
 .macro SPILL_NORMAL_HANDLER_KERNEL
     stx %l0, [%sp + STACK_BIAS + L0_OFFSET]
     stx %l1, [%sp + STACK_BIAS + L1_OFFSET]
     stx %l2, [%sp + STACK_BIAS + L2_OFFSET]
     stx %l3, [%sp + STACK_BIAS + L3_OFFSET]
     stx %l4, [%sp + STACK_BIAS + L4_OFFSET]
     stx %l5, [%sp + STACK_BIAS + L5_OFFSET]
     stx %l6, [%sp + STACK_BIAS + L6_OFFSET]
     stx %l7, [%sp + STACK_BIAS + L7_OFFSET]
     stx %i0, [%sp + STACK_BIAS + I0_OFFSET]
     stx %i1, [%sp + STACK_BIAS + I1_OFFSET]
     stx %i2, [%sp + STACK_BIAS + I2_OFFSET]
     stx %i3, [%sp + STACK_BIAS + I3_OFFSET]
     stx %i4, [%sp + STACK_BIAS + I4_OFFSET]
     stx %i5, [%sp + STACK_BIAS + I5_OFFSET]
     stx %i6, [%sp + STACK_BIAS + I6_OFFSET]
     stx %i7, [%sp + STACK_BIAS + I7_OFFSET]
     saved
     retry
 .endm
 /*
  * Macro used by the userspace during normal spills.
  */
 .macro SPILL_NORMAL_HANDLER_USERSPACE
-    wr ASI_AIUP, %asi
+    wr %g0, ASI_AIUP, %asi
     stxa %l0, [%sp + STACK_BIAS + L0_OFFSET] %asi
     stxa %l1, [%sp + STACK_BIAS + L1_OFFSET] %asi
     stxa %l2, [%sp + STACK_BIAS + L2_OFFSET] %asi
     stxa %l3, [%sp + STACK_BIAS + L3_OFFSET] %asi
     stxa %l4, [%sp + STACK_BIAS + L4_OFFSET] %asi
     stxa %l5, [%sp + STACK_BIAS + L5_OFFSET] %asi
     stxa %l6, [%sp + STACK_BIAS + L6_OFFSET] %asi
     stxa %l7, [%sp + STACK_BIAS + L7_OFFSET] %asi
     stxa %i0, [%sp + STACK_BIAS + I0_OFFSET] %asi
     stxa %i1, [%sp + STACK_BIAS + I1_OFFSET] %asi
     stxa %i2, [%sp + STACK_BIAS + I2_OFFSET] %asi
     stxa %i3, [%sp + STACK_BIAS + I3_OFFSET] %asi
     stxa %i4, [%sp + STACK_BIAS + I4_OFFSET] %asi
     stxa %i5, [%sp + STACK_BIAS + I5_OFFSET] %asi
     stxa %i6, [%sp + STACK_BIAS + I6_OFFSET] %asi
     stxa %i7, [%sp + STACK_BIAS + I7_OFFSET] %asi
     saved
     retry
 .endm
 /*
- * Macro used by the userspace during other spills.
+ * Macro used to spill userspace window to userspace window buffer.
+ * It can be either triggered from preemptible_handler doing SAVE
+ * at (TL=1) or from normal kernel code doing SAVE when OTHERWIN>0
+ * at (TL=0).
  */
-.macro SPILL_OTHER_HANDLER_USERSPACE
+.macro SPILL_TO_USPACE_WINDOW_BUFFER
-    wr ASI_AIUS, %asi
-    stxa %l0, [%sp + STACK_BIAS + L0_OFFSET] %asi
+    stx %l0, [%g7 + L0_OFFSET]
-    stxa %l1, [%sp + STACK_BIAS + L1_OFFSET] %asi
+    stx %l1, [%g7 + L1_OFFSET]
-    stxa %l2, [%sp + STACK_BIAS + L2_OFFSET] %asi
+    stx %l2, [%g7 + L2_OFFSET]
-    stxa %l3, [%sp + STACK_BIAS + L3_OFFSET] %asi
+    stx %l3, [%g7 + L3_OFFSET]
-    stxa %l4, [%sp + STACK_BIAS + L4_OFFSET] %asi
+    stx %l4, [%g7 + L4_OFFSET]
-    stxa %l5, [%sp + STACK_BIAS + L5_OFFSET] %asi
+    stx %l5, [%g7 + L5_OFFSET]
-    stxa %l6, [%sp + STACK_BIAS + L6_OFFSET] %asi
+    stx %l6, [%g7 + L6_OFFSET]
-    stxa %l7, [%sp + STACK_BIAS + L7_OFFSET] %asi
+    stx %l7, [%g7 + L7_OFFSET]
-    stxa %i0, [%sp + STACK_BIAS + I0_OFFSET] %asi
+    stx %i0, [%g7 + I0_OFFSET]
-    stxa %i1, [%sp + STACK_BIAS + I1_OFFSET] %asi
+    stx %i1, [%g7 + I1_OFFSET]
-    stxa %i2, [%sp + STACK_BIAS + I2_OFFSET] %asi
+    stx %i2, [%g7 + I2_OFFSET]
-    stxa %i3, [%sp + STACK_BIAS + I3_OFFSET] %asi
+    stx %i3, [%g7 + I3_OFFSET]
-    stxa %i4, [%sp + STACK_BIAS + I4_OFFSET] %asi
+    stx %i4, [%g7 + I4_OFFSET]
-    stxa %i5, [%sp + STACK_BIAS + I5_OFFSET] %asi
+    stx %i5, [%g7 + I5_OFFSET]
-    stxa %i6, [%sp + STACK_BIAS + I6_OFFSET] %asi
+    stx %i6, [%g7 + I6_OFFSET]
-    stxa %i7, [%sp + STACK_BIAS + I7_OFFSET] %asi
+    stx %i7, [%g7 + I7_OFFSET]
+    add %g7, STACK_WINDOW_SAVE_AREA_SIZE, %g7
     saved
     retry
 .endm
 /*
  * Macro used by the nucleus and the primary context 0 during normal fills.
  */
 .macro FILL_NORMAL_HANDLER_KERNEL
     ldx [%sp + STACK_BIAS + L0_OFFSET], %l0
     ldx [%sp + STACK_BIAS + L1_OFFSET], %l1
     ldx [%sp + STACK_BIAS + L2_OFFSET], %l2
     ldx [%sp + STACK_BIAS + L3_OFFSET], %l3
     ldx [%sp + STACK_BIAS + L4_OFFSET], %l4
     ldx [%sp + STACK_BIAS + L5_OFFSET], %l5
     ldx [%sp + STACK_BIAS + L6_OFFSET], %l6
     ldx [%sp + STACK_BIAS + L7_OFFSET], %l7
     ldx [%sp + STACK_BIAS + I0_OFFSET], %i0
     ldx [%sp + STACK_BIAS + I1_OFFSET], %i1
     ldx [%sp + STACK_BIAS + I2_OFFSET], %i2
     ldx [%sp + STACK_BIAS + I3_OFFSET], %i3
     ldx [%sp + STACK_BIAS + I4_OFFSET], %i4
     ldx [%sp + STACK_BIAS + I5_OFFSET], %i5
     ldx [%sp + STACK_BIAS + I6_OFFSET], %i6
     ldx [%sp + STACK_BIAS + I7_OFFSET], %i7
     restored
     retry
 .endm
 /*
  * Macro used by the userspace during normal fills.
  */
 .macro FILL_NORMAL_HANDLER_USERSPACE
-    wr ASI_AIUP, %asi
+    wr %g0, ASI_AIUP, %asi
-    ldxa [%sp + STACK_BIAS + L0_OFFSET] %asi, %l0
-    ldxa [%sp + STACK_BIAS + L1_OFFSET] %asi, %l1
-    ldxa [%sp + STACK_BIAS + L2_OFFSET] %asi, %l2
-    ldxa [%sp + STACK_BIAS + L3_OFFSET] %asi, %l3
-    ldxa [%sp + STACK_BIAS + L4_OFFSET] %asi, %l4
-    ldxa [%sp + STACK_BIAS + L5_OFFSET] %asi, %l5
-    ldxa [%sp + STACK_BIAS + L6_OFFSET] %asi, %l6
-    ldxa [%sp + STACK_BIAS + L7_OFFSET] %asi, %l7
-    ldxa [%sp + STACK_BIAS + I0_OFFSET] %asi, %i0
-    ldxa [%sp + STACK_BIAS + I1_OFFSET] %asi, %i1
-    ldxa [%sp + STACK_BIAS + I2_OFFSET] %asi, %i2
-    ldxa [%sp + STACK_BIAS + I3_OFFSET] %asi, %i3
-    ldxa [%sp + STACK_BIAS + I4_OFFSET] %asi, %i4
-    ldxa [%sp + STACK_BIAS + I5_OFFSET] %asi, %i5
-    ldxa [%sp + STACK_BIAS + I6_OFFSET] %asi, %i6
-    ldxa [%sp + STACK_BIAS + I7_OFFSET] %asi, %i7
-    restored
-    retry
-.endm
-/*
- * Macro used by the userspace during other fills.
- */
-.macro FILL_OTHER_HANDLER_USERSPACE
-    wr ASI_AIUS, %asi
     ldxa [%sp + STACK_BIAS + L0_OFFSET] %asi, %l0
     ldxa [%sp + STACK_BIAS + L1_OFFSET] %asi, %l1
     ldxa [%sp + STACK_BIAS + L2_OFFSET] %asi, %l2
     ldxa [%sp + STACK_BIAS + L3_OFFSET] %asi, %l3
     ldxa [%sp + STACK_BIAS + L4_OFFSET] %asi, %l4
     ldxa [%sp + STACK_BIAS + L5_OFFSET] %asi, %l5
     ldxa [%sp + STACK_BIAS + L6_OFFSET] %asi, %l6
     ldxa [%sp + STACK_BIAS + L7_OFFSET] %asi, %l7
     ldxa [%sp + STACK_BIAS + I0_OFFSET] %asi, %i0
     ldxa [%sp + STACK_BIAS + I1_OFFSET] %asi, %i1
     ldxa [%sp + STACK_BIAS + I2_OFFSET] %asi, %i2
     ldxa [%sp + STACK_BIAS + I3_OFFSET] %asi, %i3
     ldxa [%sp + STACK_BIAS + I4_OFFSET] %asi, %i4
     ldxa [%sp + STACK_BIAS + I5_OFFSET] %asi, %i5
     ldxa [%sp + STACK_BIAS + I6_OFFSET] %asi, %i6
     ldxa [%sp + STACK_BIAS + I7_OFFSET] %asi, %i7
     restored
     retry
 .endm
 .macro CLEAN_WINDOW_HANDLER
     rdpr %cleanwin, %l0
     add %l0, 1, %l0
     wrpr %l0, 0, %cleanwin
     mov %r0, %l0
     mov %r0, %l1
     mov %r0, %l2
     mov %r0, %l3
     mov %r0, %l4
     mov %r0, %l5
     mov %r0, %l6
     mov %r0, %l7
     mov %r0, %o0
     mov %r0, %o1
     mov %r0, %o2
     mov %r0, %o3
     mov %r0, %o4
     mov %r0, %o5
     mov %r0, %o6
     mov %r0, %o7
     retry
 .endm
 #endif /* __ASM__ */
 #endif
 /** @}
  */

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/include/trap/regwin.h @ 2472 – Rev 1854 → 1856