summaryrefslogtreecommitdiffstats
path: root/arch/c6x
diff options
context:
space:
mode:
Diffstat (limited to 'arch/c6x')
-rw-r--r--arch/c6x/Kconfig2
-rw-r--r--arch/c6x/include/asm/Kbuild1
-rw-r--r--arch/c6x/include/asm/barrier.h27
-rw-r--r--arch/c6x/include/asm/bitops.h1
-rw-r--r--arch/c6x/include/asm/bug.h23
-rw-r--r--arch/c6x/include/asm/cmpxchg.h68
-rw-r--r--arch/c6x/include/asm/exec.h6
-rw-r--r--arch/c6x/include/asm/processor.h9
-rw-r--r--arch/c6x/include/asm/setup.h1
-rw-r--r--arch/c6x/include/asm/special_insns.h63
-rw-r--r--arch/c6x/include/asm/switch_to.h33
-rw-r--r--arch/c6x/include/asm/system.h168
-rw-r--r--arch/c6x/kernel/irq.c1
-rw-r--r--arch/c6x/kernel/setup.c1
-rw-r--r--arch/c6x/kernel/signal.c16
-rw-r--r--arch/c6x/kernel/soc.c1
-rw-r--r--arch/c6x/kernel/time.c1
-rw-r--r--arch/c6x/kernel/traps.c1
-rw-r--r--arch/c6x/platforms/timer64.c1
19 files changed, 239 insertions, 185 deletions
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 3c64b2894c1..1c3ccd416d5 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -11,7 +11,7 @@ config TMS320C6X
select HAVE_DMA_API_DEBUG
select HAVE_GENERIC_HARDIRQS
select HAVE_MEMBLOCK
- select HAVE_SPARSE_IRQ
+ select SPARSE_IRQ
select IRQ_DOMAIN
select OF
select OF_EARLY_FLATTREE
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index 13dcf78adf9..3af601e31e6 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -3,7 +3,6 @@ include include/asm-generic/Kbuild.asm
generic-y += atomic.h
generic-y += auxvec.h
generic-y += bitsperlong.h
-generic-y += bug.h
generic-y += bugs.h
generic-y += cputime.h
generic-y += current.h
diff --git a/arch/c6x/include/asm/barrier.h b/arch/c6x/include/asm/barrier.h
new file mode 100644
index 00000000000..538240e8590
--- /dev/null
+++ b/arch/c6x/include/asm/barrier.h
@@ -0,0 +1,27 @@
+/*
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_BARRIER_H
+#define _ASM_C6X_BARRIER_H
+
+#define nop() asm("NOP\n");
+
+#define mb() barrier()
+#define rmb() barrier()
+#define wmb() barrier()
+#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() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#define smp_read_barrier_depends() do { } while (0)
+
+#endif /* _ASM_C6X_BARRIER_H */
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index 39ab7e874d9..0bec7e5036a 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -15,7 +15,6 @@
#include <linux/bitops.h>
-#include <asm/system.h>
#include <asm/byteorder.h>
/*
diff --git a/arch/c6x/include/asm/bug.h b/arch/c6x/include/asm/bug.h
new file mode 100644
index 00000000000..8d59933dd6f
--- /dev/null
+++ b/arch/c6x/include/asm/bug.h
@@ -0,0 +1,23 @@
+/*
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_BUG_H
+#define _ASM_C6X_BUG_H
+
+#include <linux/linkage.h>
+#include <asm-generic/bug.h>
+
+struct pt_regs;
+
+extern void die(char *str, struct pt_regs *fp, int nr);
+extern asmlinkage int process_exception(struct pt_regs *regs);
+extern asmlinkage void enable_exception(void);
+
+#endif /* _ASM_C6X_BUG_H */
diff --git a/arch/c6x/include/asm/cmpxchg.h b/arch/c6x/include/asm/cmpxchg.h
new file mode 100644
index 00000000000..b27c8cefb8c
--- /dev/null
+++ b/arch/c6x/include/asm/cmpxchg.h
@@ -0,0 +1,68 @@
+/*
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_CMPXCHG_H
+#define _ASM_C6X_CMPXCHG_H
+
+#include <linux/irqflags.h>
+
+/*
+ * Misc. functions
+ */
+static inline unsigned int __xchg(unsigned int x, volatile void *ptr, int size)
+{
+ unsigned int tmp;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ switch (size) {
+ case 1:
+ tmp = 0;
+ tmp = *((unsigned char *) ptr);
+ *((unsigned char *) ptr) = (unsigned char) x;
+ break;
+ case 2:
+ tmp = 0;
+ tmp = *((unsigned short *) ptr);
+ *((unsigned short *) ptr) = x;
+ break;
+ case 4:
+ tmp = 0;
+ tmp = *((unsigned int *) ptr);
+ *((unsigned int *) ptr) = x;
+ break;
+ }
+ local_irq_restore(flags);
+ return tmp;
+}
+
+#define xchg(ptr, x) \
+ ((__typeof__(*(ptr)))__xchg((unsigned int)(x), (void *) (ptr), \
+ sizeof(*(ptr))))
+#define tas(ptr) xchg((ptr), 1)
+
+
+#include <asm-generic/cmpxchg-local.h>
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n) \
+ ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \
+ (unsigned long)(o), \
+ (unsigned long)(n), \
+ sizeof(*(ptr))))
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+#include <asm-generic/cmpxchg.h>
+
+#endif /* _ASM_C6X_CMPXCHG_H */
diff --git a/arch/c6x/include/asm/exec.h b/arch/c6x/include/asm/exec.h
new file mode 100644
index 00000000000..0fea482cdc8
--- /dev/null
+++ b/arch/c6x/include/asm/exec.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_C6X_EXEC_H
+#define _ASM_C6X_EXEC_H
+
+#define arch_align_stack(x) (x)
+
+#endif /* _ASM_C6X_EXEC_H */
diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
index 77ecbded1f3..3ff7fab956b 100644
--- a/arch/c6x/include/asm/processor.h
+++ b/arch/c6x/include/asm/processor.h
@@ -129,4 +129,13 @@ extern unsigned long get_wchan(struct task_struct *p);
extern const struct seq_operations cpuinfo_op;
+/* Reset the board */
+#define HARD_RESET_NOW()
+
+extern unsigned int c6x_core_freq;
+
+
+extern void (*c6x_restart)(void);
+extern void (*c6x_halt)(void);
+
#endif /* ASM_C6X_PROCESSOR_H */
diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h
index 1808f279f82..a01e31896fa 100644
--- a/arch/c6x/include/asm/setup.h
+++ b/arch/c6x/include/asm/setup.h
@@ -27,6 +27,7 @@ extern unsigned int c6x_devstat;
extern unsigned char c6x_fuse_mac[6];
extern void machine_init(unsigned long dt_ptr);
+extern void time_init(void);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_C6X_SETUP_H */
diff --git a/arch/c6x/include/asm/special_insns.h b/arch/c6x/include/asm/special_insns.h
new file mode 100644
index 00000000000..59672bca841
--- /dev/null
+++ b/arch/c6x/include/asm/special_insns.h
@@ -0,0 +1,63 @@
+/*
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SPECIAL_INSNS_H
+#define _ASM_C6X_SPECIAL_INSNS_H
+
+
+#define get_creg(reg) \
+ ({ unsigned int __x; \
+ asm volatile ("mvc .s2 " #reg ",%0\n" : "=b"(__x)); __x; })
+
+#define set_creg(reg, v) \
+ do { unsigned int __x = (unsigned int)(v); \
+ asm volatile ("mvc .s2 %0," #reg "\n" : : "b"(__x)); \
+ } while (0)
+
+#define or_creg(reg, n) \
+ do { unsigned __x, __n = (unsigned)(n); \
+ asm volatile ("mvc .s2 " #reg ",%0\n" \
+ "or .l2 %1,%0,%0\n" \
+ "mvc .s2 %0," #reg "\n" \
+ "nop\n" \
+ : "=&b"(__x) : "b"(__n)); \
+ } while (0)
+
+#define and_creg(reg, n) \
+ do { unsigned __x, __n = (unsigned)(n); \
+ asm volatile ("mvc .s2 " #reg ",%0\n" \
+ "and .l2 %1,%0,%0\n" \
+ "mvc .s2 %0," #reg "\n" \
+ "nop\n" \
+ : "=&b"(__x) : "b"(__n)); \
+ } while (0)
+
+#define get_coreid() (get_creg(DNUM) & 0xff)
+
+/* Set/get IST */
+#define set_ist(x) set_creg(ISTP, x)
+#define get_ist() get_creg(ISTP)
+
+/*
+ * Exception management
+ */
+#define disable_exception()
+#define get_except_type() get_creg(EFR)
+#define ack_exception(type) set_creg(ECR, 1 << (type))
+#define get_iexcept() get_creg(IERR)
+#define set_iexcept(mask) set_creg(IERR, (mask))
+
+#define _extu(x, s, e) \
+ ({ unsigned int __x; \
+ asm volatile ("extu .S2 %3,%1,%2,%0\n" : \
+ "=b"(__x) : "n"(s), "n"(e), "b"(x)); \
+ __x; })
+
+#endif /* _ASM_C6X_SPECIAL_INSNS_H */
diff --git a/arch/c6x/include/asm/switch_to.h b/arch/c6x/include/asm/switch_to.h
new file mode 100644
index 00000000000..af6c71fe75e
--- /dev/null
+++ b/arch/c6x/include/asm/switch_to.h
@@ -0,0 +1,33 @@
+/*
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SWITCH_TO_H
+#define _ASM_C6X_SWITCH_TO_H
+
+#include <linux/linkage.h>
+
+#define prepare_to_switch() do { } while (0)
+
+struct task_struct;
+struct thread_struct;
+asmlinkage void *__switch_to(struct thread_struct *prev,
+ struct thread_struct *next,
+ struct task_struct *tsk);
+
+#define switch_to(prev, next, last) \
+ do { \
+ current->thread.wchan = (u_long) __builtin_return_address(0); \
+ (last) = __switch_to(&(prev)->thread, \
+ &(next)->thread, (prev)); \
+ mb(); \
+ current->thread.wchan = 0; \
+ } while (0)
+
+#endif /* _ASM_C6X_SWITCH_TO_H */
diff --git a/arch/c6x/include/asm/system.h b/arch/c6x/include/asm/system.h
deleted file mode 100644
index e076dc0eacc..00000000000
--- a/arch/c6x/include/asm/system.h
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * Port on Texas Instruments TMS320C6x architecture
- *
- * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
- * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef _ASM_C6X_SYSTEM_H
-#define _ASM_C6X_SYSTEM_H
-
-#include <linux/linkage.h>
-#include <linux/irqflags.h>
-
-#define prepare_to_switch() do { } while (0)
-
-struct task_struct;
-struct thread_struct;
-asmlinkage void *__switch_to(struct thread_struct *prev,
- struct thread_struct *next,
- struct task_struct *tsk);
-
-#define switch_to(prev, next, last) \
- do { \
- current->thread.wchan = (u_long) __builtin_return_address(0); \
- (last) = __switch_to(&(prev)->thread, \
- &(next)->thread, (prev)); \
- mb(); \
- current->thread.wchan = 0; \
- } while (0)
-
-/* Reset the board */
-#define HARD_RESET_NOW()
-
-#define get_creg(reg) \
- ({ unsigned int __x; \
- asm volatile ("mvc .s2 " #reg ",%0\n" : "=b"(__x)); __x; })
-
-#define set_creg(reg, v) \
- do { unsigned int __x = (unsigned int)(v); \
- asm volatile ("mvc .s2 %0," #reg "\n" : : "b"(__x)); \
- } while (0)
-
-#define or_creg(reg, n) \
- do { unsigned __x, __n = (unsigned)(n); \
- asm volatile ("mvc .s2 " #reg ",%0\n" \
- "or .l2 %1,%0,%0\n" \
- "mvc .s2 %0," #reg "\n" \
- "nop\n" \
- : "=&b"(__x) : "b"(__n)); \
- } while (0)
-
-#define and_creg(reg, n) \
- do { unsigned __x, __n = (unsigned)(n); \
- asm volatile ("mvc .s2 " #reg ",%0\n" \
- "and .l2 %1,%0,%0\n" \
- "mvc .s2 %0," #reg "\n" \
- "nop\n" \
- : "=&b"(__x) : "b"(__n)); \
- } while (0)
-
-#define get_coreid() (get_creg(DNUM) & 0xff)
-
-/* Set/get IST */
-#define set_ist(x) set_creg(ISTP, x)
-#define get_ist() get_creg(ISTP)
-
-/*
- * Exception management
- */
-asmlinkage void enable_exception(void);
-#define disable_exception()
-#define get_except_type() get_creg(EFR)
-#define ack_exception(type) set_creg(ECR, 1 << (type))
-#define get_iexcept() get_creg(IERR)
-#define set_iexcept(mask) set_creg(IERR, (mask))
-
-/*
- * Misc. functions
- */
-#define nop() asm("NOP\n");
-#define mb() barrier()
-#define rmb() barrier()
-#define wmb() barrier()
-#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() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#define smp_read_barrier_depends() do { } while (0)
-
-#define xchg(ptr, x) \
- ((__typeof__(*(ptr)))__xchg((unsigned int)(x), (void *) (ptr), \
- sizeof(*(ptr))))
-#define tas(ptr) xchg((ptr), 1)
-
-unsigned int _lmbd(unsigned int, unsigned int);
-unsigned int _bitr(unsigned int);
-
-struct __xchg_dummy { unsigned int a[100]; };
-#define __xg(x) ((volatile struct __xchg_dummy *)(x))
-
-static inline unsigned int __xchg(unsigned int x, volatile void *ptr, int size)
-{
- unsigned int tmp;
- unsigned long flags;
-
- local_irq_save(flags);
-
- switch (size) {
- case 1:
- tmp = 0;
- tmp = *((unsigned char *) ptr);
- *((unsigned char *) ptr) = (unsigned char) x;
- break;
- case 2:
- tmp = 0;
- tmp = *((unsigned short *) ptr);
- *((unsigned short *) ptr) = x;
- break;
- case 4:
- tmp = 0;
- tmp = *((unsigned int *) ptr);
- *((unsigned int *) ptr) = x;
- break;
- }
- local_irq_restore(flags);
- return tmp;
-}
-
-#include <asm-generic/cmpxchg-local.h>
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n) \
- ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \
- (unsigned long)(o), \
- (unsigned long)(n), \
- sizeof(*(ptr))))
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-
-#include <asm-generic/cmpxchg.h>
-
-#define _extu(x, s, e) \
- ({ unsigned int __x; \
- asm volatile ("extu .S2 %3,%1,%2,%0\n" : \
- "=b"(__x) : "n"(s), "n"(e), "b"(x)); \
- __x; })
-
-
-extern unsigned int c6x_core_freq;
-
-struct pt_regs;
-
-extern void die(char *str, struct pt_regs *fp, int nr);
-extern asmlinkage int process_exception(struct pt_regs *regs);
-extern void time_init(void);
-extern void free_initmem(void);
-
-extern void (*c6x_restart)(void);
-extern void (*c6x_halt)(void);
-
-#endif /* _ASM_C6X_SYSTEM_H */
diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
index d77bcfdf0d8..65b8ddf54b4 100644
--- a/arch/c6x/kernel/irq.c
+++ b/arch/c6x/kernel/irq.c
@@ -27,6 +27,7 @@
#include <linux/kernel_stat.h>
#include <asm/megamod-pic.h>
+#include <asm/special_insns.h>
unsigned long irq_err_count;
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index 0c07921747f..ce46186600c 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -34,6 +34,7 @@
#include <asm/dscr.h>
#include <asm/clock.h>
#include <asm/soc.h>
+#include <asm/special_insns.h>
static const char *c6x_soc_name;
diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 304f675826e..3b5a0509998 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -85,10 +85,7 @@ asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
+ set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
goto badframe;
@@ -279,15 +276,8 @@ static int handle_signal(int sig,
/* Set up the stack frame */
ret = setup_rt_frame(sig, ka, info, oldset, regs);
- if (ret == 0) {
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked, &current->blocked,
- &ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&current->blocked, sig);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
- }
+ if (ret == 0)
+ block_sigmask(ka, sig);
return ret;
}
diff --git a/arch/c6x/kernel/soc.c b/arch/c6x/kernel/soc.c
index dd45bc39af0..0748c94ebef 100644
--- a/arch/c6x/kernel/soc.c
+++ b/arch/c6x/kernel/soc.c
@@ -11,7 +11,6 @@
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/etherdevice.h>
-#include <asm/system.h>
#include <asm/setup.h>
#include <asm/soc.h>
diff --git a/arch/c6x/kernel/time.c b/arch/c6x/kernel/time.c
index 4c9f136165f..356ee84cad9 100644
--- a/arch/c6x/kernel/time.c
+++ b/arch/c6x/kernel/time.c
@@ -20,6 +20,7 @@
#include <linux/timex.h>
#include <linux/profile.h>
+#include <asm/special_insns.h>
#include <asm/timer64.h>
static u32 sched_clock_multiplier;
diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c
index f50e3edd6da..1be74e5b478 100644
--- a/arch/c6x/kernel/traps.c
+++ b/arch/c6x/kernel/traps.c
@@ -14,6 +14,7 @@
#include <linux/bug.h>
#include <asm/soc.h>
+#include <asm/special_insns.h>
#include <asm/traps.h>
int (*c6x_nmi_handler)(struct pt_regs *regs);
diff --git a/arch/c6x/platforms/timer64.c b/arch/c6x/platforms/timer64.c
index 03c03c24919..3c73d74a467 100644
--- a/arch/c6x/platforms/timer64.c
+++ b/arch/c6x/platforms/timer64.c
@@ -15,6 +15,7 @@
#include <linux/of_address.h>
#include <asm/soc.h>
#include <asm/dscr.h>
+#include <asm/special_insns.h>
#include <asm/timer64.h>
struct timer_regs {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 08:28:45 +0000