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-rw-r--r--include/asm-frv/elf.h6
-rw-r--r--include/asm-frv/gdb-stub.h22
-rw-r--r--include/asm-frv/processor.h3
-rw-r--r--include/asm-frv/ptrace.h12
-rw-r--r--include/asm-frv/registers.h97
-rw-r--r--include/asm-frv/system.h1
-rw-r--r--include/asm-frv/thread_info.h24
7 files changed, 69 insertions, 96 deletions
diff --git a/include/asm-frv/elf.h b/include/asm-frv/elf.h
index 38656da00e4..7df58a3e6e4 100644
--- a/include/asm-frv/elf.h
+++ b/include/asm-frv/elf.h
@@ -64,7 +64,7 @@ typedef unsigned long elf_greg_t;
#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-typedef struct fpmedia_struct elf_fpregset_t;
+typedef struct user_fpmedia_regs elf_fpregset_t;
/*
* This is used to ensure we don't load something for the wrong architecture.
@@ -116,6 +116,7 @@ do { \
} while(0)
#define USE_ELF_CORE_DUMP
+#define ELF_FDPIC_CORE_EFLAGS EF_FRV_FDPIC
#define ELF_EXEC_PAGESIZE 16384
/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
@@ -125,9 +126,6 @@ do { \
#define ELF_ET_DYN_BASE 0x08000000UL
-#define ELF_CORE_COPY_REGS(pr_reg, regs) \
- memcpy(&pr_reg[0], &regs->sp, 31 * sizeof(uint32_t));
-
/* This yields a mask that user programs can use to figure out what
instruction set this cpu supports. */
diff --git a/include/asm-frv/gdb-stub.h b/include/asm-frv/gdb-stub.h
index c58479a4be9..24f9738670b 100644
--- a/include/asm-frv/gdb-stub.h
+++ b/include/asm-frv/gdb-stub.h
@@ -89,6 +89,7 @@ extern void gdbstub_do_rx(void);
extern asmlinkage void __debug_stub_init_break(void);
extern asmlinkage void __break_hijack_kernel_event(void);
+extern asmlinkage void __break_hijack_kernel_event_breaks_here(void);
extern asmlinkage void start_kernel(void);
extern asmlinkage void gdbstub_rx_handler(void);
@@ -114,5 +115,26 @@ extern void console_set_baud(unsigned baud);
#define gdbstub_proto(FMT,...) ({ 0; })
#endif
+/*
+ * we dedicate GR31 to keeping a pointer to the gdbstub exception frame
+ * - gr31 is destroyed on entry to the gdbstub if !MMU
+ * - gr31 is saved in scr3 on entry to the gdbstub if in !MMU
+ */
+register struct frv_frame0 *__debug_frame0 asm("gr31");
+
+#define __debug_frame (&__debug_frame0->regs)
+#define __debug_user_context (&__debug_frame0->uc)
+#define __debug_regs (&__debug_frame0->debug)
+#define __debug_reg(X) ((unsigned long *) ((unsigned long) &__debug_frame0 + (X)))
+
+struct frv_debug_status {
+ unsigned long bpsr;
+ unsigned long dcr;
+ unsigned long brr;
+ unsigned long nmar;
+};
+
+extern struct frv_debug_status __debug_status;
+
#endif /* _LANGUAGE_ASSEMBLY */
#endif /* __ASM_GDB_STUB_H */
diff --git a/include/asm-frv/processor.h b/include/asm-frv/processor.h
index 1c4dba1c5f5..3744f2e47f4 100644
--- a/include/asm-frv/processor.h
+++ b/include/asm-frv/processor.h
@@ -21,6 +21,7 @@
*/
#define current_text_addr() ({ __label__ _l; _l: &&_l;})
+#include <linux/compiler.h>
#include <linux/linkage.h>
#include <asm/sections.h>
#include <asm/segment.h>
@@ -139,7 +140,7 @@ unsigned long get_wchan(struct task_struct *p);
extern struct task_struct *alloc_task_struct(void);
extern void free_task_struct(struct task_struct *p);
-#define cpu_relax() do { } while (0)
+#define cpu_relax() barrier()
/* data cache prefetch */
#define ARCH_HAS_PREFETCH
diff --git a/include/asm-frv/ptrace.h b/include/asm-frv/ptrace.h
index b2cce0718e5..7ff525162a7 100644
--- a/include/asm-frv/ptrace.h
+++ b/include/asm-frv/ptrace.h
@@ -62,18 +62,10 @@
#ifndef __ASSEMBLY__
/*
- * dedicate GR28; to keeping the a pointer to the current exception frame
+ * we dedicate GR28 to keeping a pointer to the current exception frame
+ * - gr28 is destroyed on entry to the kernel from userspace
*/
register struct pt_regs *__frame asm("gr28");
-register struct pt_regs *__debug_frame asm("gr31");
-
-#ifndef container_of
-#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
-#endif
-
-#define __debug_regs container_of(__debug_frame, struct pt_debug_regs, normal_regs)
#define user_mode(regs) (!((regs)->psr & PSR_S))
#define instruction_pointer(regs) ((regs)->pc)
diff --git a/include/asm-frv/registers.h b/include/asm-frv/registers.h
index fccfd95cff6..9666119fcf6 100644
--- a/include/asm-frv/registers.h
+++ b/include/asm-frv/registers.h
@@ -23,7 +23,13 @@
*
* +0x2000 +----------------------
* | union {
- * | struct user_context
+ * | struct frv_frame0 {
+ * | struct user_context {
+ * | struct user_int_regs
+ * | struct user_fpmedia_regs
+ * | }
+ * | struct frv_debug_regs
+ * | }
* | struct pt_regs [user exception]
* | }
* +---------------------- <-- __kernel_frame0_ptr (maybe GR28)
@@ -51,11 +57,11 @@
#define _ASM_REGISTERS_H
#ifndef __ASSEMBLY__
-#define __OFFSET(X) (X)
+#define __OFFSET(X,N) ((X)+(N)*4)
#define __OFFSETC(X,N) xxxxxxxxxxxxxxxxxxxxxxxx
#else
-#define __OFFSET(X) ((X)*4)
-#define __OFFSETC(X,N) ((X)*4+(N))
+#define __OFFSET(X,N) ((X)+(N)*4)
+#define __OFFSETC(X,N) ((X)+(N))
#endif
/*****************************************************************************/
@@ -117,30 +123,13 @@ struct pt_regs {
#endif
-#define REG_PSR __OFFSET( 0) /* Processor Status Register */
-#define REG_ISR __OFFSET( 1) /* Integer Status Register */
-#define REG_CCR __OFFSET( 2) /* Condition Code Register */
-#define REG_CCCR __OFFSET( 3) /* Condition Code for Conditional Insns Register */
-#define REG_LR __OFFSET( 4) /* Link Register */
-#define REG_LCR __OFFSET( 5) /* Loop Count Register */
-#define REG_PC __OFFSET( 6) /* Program Counter */
-
-#define REG__STATUS __OFFSET( 7) /* exception status */
#define REG__STATUS_STEP 0x00000001 /* - reenable single stepping on return */
#define REG__STATUS_STEPPED 0x00000002 /* - single step caused exception */
#define REG__STATUS_BROKE 0x00000004 /* - BREAK insn caused exception */
#define REG__STATUS_SYSC_ENTRY 0x40000000 /* - T on syscall entry (ptrace.c only) */
#define REG__STATUS_SYSC_EXIT 0x80000000 /* - T on syscall exit (ptrace.c only) */
-#define REG_SYSCALLNO __OFFSET( 8) /* syscall number or -1 */
-#define REG_ORIG_GR8 __OFFSET( 9) /* saved GR8 for signal handling */
-#define REG_GNER0 __OFFSET(10)
-#define REG_GNER1 __OFFSET(11)
-#define REG_IACC0 __OFFSET(12)
-
-#define REG_TBR __OFFSET(14) /* Trap Vector Register */
-#define REG_GR(R) __OFFSET((14+(R)))
-#define REG__END REG_GR(32)
+#define REG_GR(R) __OFFSET(REG_GR0, (R))
#define REG_SP REG_GR(1)
#define REG_FP REG_GR(2)
@@ -149,27 +138,21 @@ struct pt_regs {
/*****************************************************************************/
/*
- * extension tacked in front of the exception frame in debug mode
+ * debugging registers
*/
#ifndef __ASSEMBLY__
-struct pt_debug_regs
+struct frv_debug_regs
{
- unsigned long bpsr;
unsigned long dcr;
- unsigned long brr;
- unsigned long nmar;
- struct pt_regs normal_regs;
+ unsigned long ibar[4] __attribute__((aligned(8)));
+ unsigned long dbar[4] __attribute__((aligned(8)));
+ unsigned long dbdr[4][4] __attribute__((aligned(8)));
+ unsigned long dbmr[4][4] __attribute__((aligned(8)));
} __attribute__((aligned(8)));
#endif
-#define REG_NMAR __OFFSET(-1)
-#define REG_BRR __OFFSET(-2)
-#define REG_DCR __OFFSET(-3)
-#define REG_BPSR __OFFSET(-4)
-#define REG__DEBUG_XTRA __OFFSET(4)
-
/*****************************************************************************/
/*
* userspace registers
@@ -223,33 +206,27 @@ struct user_context
void *extension;
} __attribute__((aligned(8)));
+struct frv_frame0 {
+ union {
+ struct pt_regs regs;
+ struct user_context uc;
+ };
+
+ struct frv_debug_regs debug;
+
+} __attribute__((aligned(32)));
+
#endif
-#define NR_USER_INT_REGS (14 + 64)
-#define NR_USER_FPMEDIA_REGS (64 + 2 + 2 + 8 + 8/4 + 1)
-#define NR_USER_CONTEXT (NR_USER_INT_REGS + NR_USER_FPMEDIA_REGS + 1)
-
-#define USER_CONTEXT_SIZE (((NR_USER_CONTEXT + 1) & ~1) * 4)
-
-#define __THREAD_FRAME __OFFSET(0)
-#define __THREAD_CURR __OFFSET(1)
-#define __THREAD_SP __OFFSET(2)
-#define __THREAD_FP __OFFSET(3)
-#define __THREAD_LR __OFFSET(4)
-#define __THREAD_PC __OFFSET(5)
-#define __THREAD_GR(R) __OFFSET(6 + (R) - 16)
-#define __THREAD_FRAME0 __OFFSET(19)
-#define __THREAD_USER __OFFSET(19)
-
-#define __USER_INT __OFFSET(0)
-#define __INT_GR(R) __OFFSET(14 + (R))
-
-#define __USER_FPMEDIA __OFFSET(NR_USER_INT_REGS)
-#define __FPMEDIA_FR(R) __OFFSET(NR_USER_INT_REGS + (R))
-#define __FPMEDIA_FNER(R) __OFFSET(NR_USER_INT_REGS + 64 + (R))
-#define __FPMEDIA_MSR(R) __OFFSET(NR_USER_INT_REGS + 66 + (R))
-#define __FPMEDIA_ACC(R) __OFFSET(NR_USER_INT_REGS + 68 + (R))
-#define __FPMEDIA_ACCG(R) __OFFSETC(NR_USER_INT_REGS + 76, (R))
-#define __FPMEDIA_FSR(R) __OFFSET(NR_USER_INT_REGS + 78 + (R))
+#define __INT_GR(R) __OFFSET(__INT_GR0, (R))
+
+#define __FPMEDIA_FR(R) __OFFSET(__FPMEDIA_FR0, (R))
+#define __FPMEDIA_FNER(R) __OFFSET(__FPMEDIA_FNER0, (R))
+#define __FPMEDIA_MSR(R) __OFFSET(__FPMEDIA_MSR0, (R))
+#define __FPMEDIA_ACC(R) __OFFSET(__FPMEDIA_ACC0, (R))
+#define __FPMEDIA_ACCG(R) __OFFSETC(__FPMEDIA_ACCG0, (R))
+#define __FPMEDIA_FSR(R) __OFFSET(__FPMEDIA_FSR0, (R))
+
+#define __THREAD_GR(R) __OFFSET(__THREAD_GR16, (R) - 16)
#endif /* _ASM_REGISTERS_H */
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index 351863dfd06..1166899317d 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -179,7 +179,6 @@ do { \
#define rmb() asm volatile ("membar" : : :"memory")
#define wmb() asm volatile ("membar" : : :"memory")
#define set_mb(var, value) do { var = value; mb(); } while (0)
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
#define smp_mb() mb()
#define smp_rmb() rmb()
diff --git a/include/asm-frv/thread_info.h b/include/asm-frv/thread_info.h
index ea426abf01d..d66c48e6ef1 100644
--- a/include/asm-frv/thread_info.h
+++ b/include/asm-frv/thread_info.h
@@ -19,6 +19,8 @@
#include <asm/processor.h>
#endif
+#define THREAD_SIZE 8192
+
/*
* low level task data that entry.S needs immediate access to
* - this struct should fit entirely inside of one cache line
@@ -46,15 +48,7 @@ struct thread_info {
#else /* !__ASSEMBLY__ */
-/* offsets into the thread_info struct for assembly code access */
-#define TI_TASK 0x00000000
-#define TI_EXEC_DOMAIN 0x00000004
-#define TI_FLAGS 0x00000008
-#define TI_STATUS 0x0000000C
-#define TI_CPU 0x00000010
-#define TI_PRE_COUNT 0x00000014
-#define TI_ADDR_LIMIT 0x00000018
-#define TI_RESTART_BLOCK 0x0000001C
+#include <asm/asm-offsets.h>
#endif
@@ -83,12 +77,6 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
-#ifdef CONFIG_SMALL_TASKS
-#define THREAD_SIZE 4096
-#else
-#define THREAD_SIZE 8192
-#endif
-
/* how to get the thread information struct from C */
register struct thread_info *__current_thread_info asm("gr15");
@@ -111,11 +99,7 @@ register struct thread_info *__current_thread_info asm("gr15");
#define free_thread_info(info) kfree(info)
-#else /* !__ASSEMBLY__ */
-
-#define THREAD_SIZE 8192
-
-#endif
+#endif /* __ASSEMBLY__ */
/*
* thread information flags
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-24 01:01:24 +0000