Merge with http://www.denx.de/git/u-boot.git

1 files changed, 269 insertions, 0 deletions

diff --git a/include/asm-blackfin/ptrace.h b/include/asm-blackfin/ptrace.h
new file mode 100644
index 0000000..afd5777
--- /dev/null
+++ b/include/asm-blackfin/ptrace.h
@@ -0,0 +1,269 @@
+/*
+ * U-boot - ptrace.h
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#ifndef _BLACKFIN_PTRACE_H
+#define _BLACKFIN_PTRACE_H
+
+#define NEW_PT_REGS
+
+/*
+ * GCC defines register number like this:
+ * -----------------------------
+ *       0 - 7 are data registers R0-R7
+ *       8 - 15 are address registers P0-P7
+ *      16 - 31 dsp registers I/B/L0 -- I/B/L3 & M0--M3
+ *      32 - 33 A registers A0 & A1
+ *      34 -    status register
+ *
+ * We follows above, except:
+ *      32-33 --- Low 32-bit of A0&1
+ *      34-35 --- High 8-bit of A0&1
+ */
+
+#if defined(NEW_PT_REGS)
+
+#define PT_IPEND	0
+#define PT_SYSCFG	(PT_IPEND+4)
+#define PT_SEQSTAT	(PT_SYSCFG+4)
+#define PT_RETE		(PT_SEQSTAT+4)
+#define PT_RETN		(PT_RETE+4)
+#define PT_RETX		(PT_RETN+4)
+#define PT_RETI		(PT_RETX+4)
+#define PT_PC		PT_RETI
+#define PT_RETS		(PT_RETI+4)
+#define PT_RESERVED	(PT_RETS+4)
+#define PT_ASTAT	(PT_RESERVED+4)
+#define PT_LB1		(PT_ASTAT+4)
+#define PT_LB0		(PT_LB1+4)
+#define PT_LT1		(PT_LB0+4)
+#define PT_LT0		(PT_LT1+4)
+#define PT_LC1		(PT_LT0+4)
+#define PT_LC0		(PT_LC1+4)
+#define PT_A1W		(PT_LC0+4)
+#define PT_A1X		(PT_A1W+4)
+#define PT_A0W		(PT_A1X+4)
+#define PT_A0X		(PT_A0W+4)
+#define PT_B3		(PT_A0X+4)
+#define PT_B2		(PT_B3+4)
+#define PT_B1		(PT_B2+4)
+#define PT_B0		(PT_B1+4)
+#define PT_L3		(PT_B0+4)
+#define PT_L2		(PT_L3+4)
+#define PT_L1		(PT_L2+4)
+#define PT_L0		(PT_L1+4)
+#define PT_M3		(PT_L0+4)
+#define PT_M2		(PT_M3+4)
+#define PT_M1		(PT_M2+4)
+#define PT_M0		(PT_M1+4)
+#define PT_I3		(PT_M0+4)
+#define PT_I2		(PT_I3+4)
+#define PT_I1		(PT_I2+4)
+#define PT_I0		(PT_I1+4)
+#define PT_USP		(PT_I0+4)
+#define PT_FP		(PT_USP+4)
+#define PT_P5		(PT_FP+4)
+#define PT_P4		(PT_P5+4)
+#define PT_P3		(PT_P4+4)
+#define PT_P2		(PT_P3+4)
+#define PT_P1		(PT_P2+4)
+#define PT_P0		(PT_P1+4)
+#define PT_R7		(PT_P0+4)
+#define PT_R6		(PT_R7+4)
+#define PT_R5		(PT_R6+4)
+#define PT_R4		(PT_R5+4)
+#define PT_R3		(PT_R4+4)
+#define PT_R2		(PT_R3+4)
+#define PT_R1		(PT_R2+4)
+#define PT_R0		(PT_R1+4)
+#define PT_ORIG_R0	(PT_R0+4)
+#define PT_SR		PT_SEQSTAT
+
+#else
+/*
+ * Here utilize blackfin : dpregs = [pregs + imm16s4]
+ *                     [pregs + imm16s4] = dpregs
+ * to access defferent saved reg in stack
+ */
+#define PT_R3		0
+#define PT_R4		4
+#define PT_R2		8
+#define PT_R1		12
+#define PT_P5		16
+#define PT_P4		20
+#define PT_P3		24
+#define PT_P2		28
+#define PT_P1		32
+#define PT_P0		36
+#define PT_R7		40
+#define PT_R6		44
+#define PT_R5		48
+#define PT_PC		52
+#define PT_SEQSTAT	56	/* so-called SR reg */
+#define PT_SR		PT_SEQSTAT
+#define PT_ASTAT	60
+#define PT_RETS		64
+#define PT_A1w		68
+#define PT_A0w		72
+#define PT_A1x		76
+#define PT_A0x		80
+#define PT_ORIG_R0	84
+#define PT_R0		88
+#define PT_USP		92
+#define PT_FP		96
+#define PT_SP		100
+
+/* Added by HuTao, May26 2003 3:18PM */
+#define PT_IPEND	100
+
+/* Add SYSCFG register for single stepping support */
+#define PT_SYSCFG	104
+
+#endif
+
+#ifndef __ASSEMBLY__
+
+#if defined(NEW_PT_REGS)
+/* this struct defines the way the registers are stored on the
+ * stack during a system call.
+ */
+struct pt_regs {
+	long ipend;
+	long syscfg;
+	long seqstat;
+	long rete;
+	long retn;
+	long retx;
+	long pc;
+	long rets;
+	long reserved;
+	long astat;
+	long lb1;
+	long lb0;
+	long lt1;
+	long lt0;
+	long lc1;
+	long lc0;
+	long a1w;
+	long a1x;
+	long a0w;
+	long a0x;
+	long b3;
+	long b2;
+	long b1;
+	long b0;
+	long l3;
+	long l2;
+	long l1;
+	long l0;
+	long m3;
+	long m2;
+	long m1;
+	long m0;
+	long i3;
+	long i2;
+	long i1;
+	long i0;
+	long usp;
+	long fp;
+	long p5;
+	long p4;
+	long p3;
+	long p2;
+	long p1;
+	long p0;
+	long r7;
+	long r6;
+	long r5;
+	long r4;
+	long r3;
+	long r2;
+	long r1;
+	long r0;
+	long orig_r0;
+};
+
+#else
+/* now we don't know what regs the system call will use	*/
+struct pt_regs {
+	long r3;
+	long r4;
+	long r2;
+	long r1;
+	long p5;
+	long p4;
+	long p3;
+	long p2;
+	long p1;
+	long p0;
+	long r7;
+	long r6;
+	long r5;
+	unsigned long pc;
+	unsigned long seqstat;
+	unsigned long astat;
+	unsigned long rets;
+	long a1w;
+	long a0w;
+	long a1x;
+	long a0x;
+	long orig_r0;
+	long r0;
+	long usp;
+	long fp;
+/*
+ * Added for supervisor/user mode switch.
+ *
+ * HuTao May26 03 3:23PM
+ */
+	long ipend;
+	long syscfg;
+};
+
+#endif
+
+/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
+#define PTRACE_GETREGS		12
+#define PTRACE_SETREGS		13	/* ptrace signal */
+
+#ifdef __KERNEL__
+
+#ifndef PS_S
+#define PS_S			(0x0c00)
+
+/* Bit 11:10 of SEQSTAT defines user/supervisor/debug mode
+ *        00: user
+ *        01: supervisor
+ *        1x: debug
+ */
+
+#define PS_M			(0x1000)	/* I am not sure why this is required here Akbar */
+#endif
+
+#define user_mode(regs)			(!((regs)->seqstat & PS_S))
+#define instruction_pointer(regs)	((regs)->pc)
+extern void show_regs(struct pt_regs *);
+
+#endif
+#endif
+#endif