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Diffstat (limited to 'include/asm-blackfin/entry.h')
-rw-r--r--include/asm-blackfin/entry.h133
1 files changed, 1 insertions, 132 deletions
diff --git a/include/asm-blackfin/entry.h b/include/asm-blackfin/entry.h
index eb84f11..ef74d68 100644
--- a/include/asm-blackfin/entry.h
+++ b/include/asm-blackfin/entry.h
@@ -1,5 +1,5 @@
/*
- * U-boot - entry.h Routines for context saving and restoring
+ * entry.h - routines for context saving and restoring (for interrupts/exceptions)
*
* Copyright (c) 2005-2007 Analog Devices Inc.
*
@@ -24,37 +24,8 @@
#ifndef __BLACKFIN_ENTRY_H
#define __BLACKFIN_ENTRY_H
-
-#include <linux/config.h>
-#include <asm/setup.h>
-
-/*
- * Stack layout in 'ret_from_exception':
- *
- */
-
-/*
- * Register %p2 is now set to the current task throughout
- * the whole kernel.
- */
-
#ifdef __ASSEMBLY__
-#define LFLUSH_I_AND_D 0x00000808
-#define LSIGTRAP 5
-
-/* process bits for task_struct.flags */
-#define PF_TRACESYS_OFF 3
-#define PF_TRACESYS_BIT 5
-#define PF_PTRACED_OFF 3
-#define PF_PTRACED_BIT 4
-#define PF_DTRACE_OFF 1
-#define PF_DTRACE_BIT 5
-
-#define NEW_PT_REGS
-
-#if defined(NEW_PT_REGS)
-
#define SAVE_ALL_INT save_context_no_interrupts
#define SAVE_ALL_SYS save_context_no_interrupts
#define SAVE_CONTEXT save_context_with_interrupts
@@ -63,16 +34,6 @@
#define RESTORE_ALL_SYS restore_context_no_interrupts
#define RESTORE_CONTEXT restore_context_with_interrupts
-#else
-
-#define SAVE_ALL_INT save_all_int
-#define SAVE_ALL_SYS save_all_sys
-#define SAVE_CONTEXT save_context
-#define RESTORE_ALL restore_context
-#define RESTORE_CONTEXT restore_context
-
-#endif
-
/*
* Code to save processor context.
* We even save the register which are preserved by a function call
@@ -284,97 +245,5 @@
sp += 4;
.endm
-#if !defined(NEW_PT_REGS)
-/*
- * a -1 in the orig_r0 field signifies
- * that the stack frame is NOT for syscall
- */
-.macro save_all_int
-/* reserved and disable the single step of SYSCFG, by Steven Chen 03/07/10 */
- [--sp] = r0;
- r0.l = 0x30; /* Errata for BF533 */
- r0.h = 0x0;
- syscfg = r0; /* disable single step flag in SYSCFG */
- r0 = [sp++];
- [--sp] = syscfg; /* store SYSCFG */
-
- [--sp] = r0; /* Reserved for IPEND */
- [--sp] = fp;
- [--sp] = usp;
- [--sp] = r0;
-
- [--sp] = r0;
- r0 = [sp + 8];
- [--sp] = a0.x;
- [--sp] = a1.x;
- [--sp] = a0.w;
- [--sp] = a1.w;
- [--sp] = rets;
- [--sp] = astat;
- [--sp] = seqstat;
- [--sp] = retx; /* current pc when exception happens */
- [--sp] = ( r7:5, p5:0 );
- [--sp] = r1;
- [--sp] = r2;
- [--sp] = r4;
- [--sp] = r3;
-.endm
-
-.macro save_all_sys
- [--sp] = r0;
- [--sp] = r0;
- [--sp] = a0.x;
- [--sp] = a1.x;
- [--sp] = a0.w;
- [--sp] = a1.w;
- [--sp] = rets;
- [--sp] = astat;
- [--sp] = seqstat;
- [--sp] = retx; /* current pc when exception happens */
- [--sp] = ( r7:5, p5:0 );
- [--sp] = r1;
- [--sp] = r2;
- [--sp] = r4;
- [--sp] = r3;
-.endm
-
-.macro restore_all
- r3 = [sp++];
- r4 = [sp++];
- r2 = [sp++];
- r1 = [sp++];
- ( r7:5, p5:0 ) = [sp++];
- retx = [sp++];
- seqstat = [sp++];
- astat = [sp++];
- rets = [sp++];
- a1.w = [sp++];
- a0.w = [sp++];
- a1.x = [sp++];
- a0.x = [sp++];
- sp += 4; /* orig r0 */
- r0 = [sp++];
-
- sp += 4;
- fp = [sp++];
- sp +=4; /* Skip the IPEND */
-
- syscfg = [sp++];
-
-.endm
-
-#endif
-
-#define STR(X) STR1(X)
-#define STR1(X) #X
-
-#if defined(NEW_PT_REGS)
-#define PT_OFF_ORIG_R0 208
-#define PT_OFF_SR 8
-#else
-#define PT_OFF_ORIG_R0 0x54
-#define PT_OFF_SR 0x38 /* seqstat in pt_regs */
-#endif
-
#endif
#endif