loongarch: Use generic TIF bits

No point in defining generic items and the upcoming RSEQ optimizations are
only available with this _and_ the generic entry infrastructure, which is
already used by loongarch. So no further action required here.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index f0abc38c40ac9ea3026d8e19a851cd31bb5faa9f..2e90d862ebb3e50a4e968875dcc58365c7b5d45b 100644 (file)
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -140,6 +140,7 @@ config LOONGARCH
        select HAVE_EBPF_JIT
        select HAVE_EFFICIENT_UNALIGNED_ACCESS if !ARCH_STRICT_ALIGN
        select HAVE_EXIT_THREAD
+       select HAVE_GENERIC_TIF_BITS
        select HAVE_GUP_FAST
        select HAVE_FTRACE_GRAPH_FUNC
        select HAVE_FUNCTION_ARG_ACCESS_API

diff --git a/arch/loongarch/include/asm/thread_info.h b/arch/loongarch/include/asm/thread_info.h
index 9dfa2ef00816702fe5172b295a44db69d471cc8b..def7cb14467ec655f487bab76c8bda26313803a7 100644 (file)
--- a/arch/loongarch/include/asm/thread_info.h
+++ b/arch/loongarch/include/asm/thread_info.h
@@ -65,50 +65,42 @@ register unsigned long current_stack_pointer __asm__("$sp");
  *   access
  * - pending work-to-be-done flags are in LSW
  * - other flags in MSW
+ *
+ * Tell the generic TIF infrastructure which special bits loongarch supports
  */
-#define TIF_NEED_RESCHED       0       /* rescheduling necessary */
-#define TIF_NEED_RESCHED_LAZY  1       /* lazy rescheduling necessary */
-#define TIF_SIGPENDING         2       /* signal pending */
-#define TIF_NOTIFY_RESUME      3       /* callback before returning to user */
-#define TIF_NOTIFY_SIGNAL      4       /* signal notifications exist */
-#define TIF_RESTORE_SIGMASK    5       /* restore signal mask in do_signal() */
-#define TIF_NOHZ               6       /* in adaptive nohz mode */
-#define TIF_UPROBE             7       /* breakpointed or singlestepping */
-#define TIF_USEDFPU            8       /* FPU was used by this task this quantum (SMP) */
-#define TIF_USEDSIMD           9       /* SIMD has been used this quantum */
-#define TIF_MEMDIE             10      /* is terminating due to OOM killer */
-#define TIF_FIXADE             11      /* Fix address errors in software */
-#define TIF_LOGADE             12      /* Log address errors to syslog */
-#define TIF_32BIT_REGS         13      /* 32-bit general purpose registers */
-#define TIF_32BIT_ADDR         14      /* 32-bit address space */
-#define TIF_LOAD_WATCH         15      /* If set, load watch registers */
-#define TIF_SINGLESTEP         16      /* Single Step */
-#define TIF_LSX_CTX_LIVE       17      /* LSX context must be preserved */
-#define TIF_LASX_CTX_LIVE      18      /* LASX context must be preserved */
-#define TIF_USEDLBT            19      /* LBT was used by this task this quantum (SMP) */
-#define TIF_LBT_CTX_LIVE       20      /* LBT context must be preserved */
-#define TIF_PATCH_PENDING      21      /* pending live patching update */
+#define HAVE_TIF_NEED_RESCHED_LAZY
+#define HAVE_TIF_RESTORE_SIGMASK
+
+#include <asm-generic/thread_info_tif.h>
+
+/* Architecture specific bits */
+#define TIF_NOHZ               16      /* in adaptive nohz mode */
+#define TIF_USEDFPU            17      /* FPU was used by this task this quantum (SMP) */
+#define TIF_USEDSIMD           18      /* SIMD has been used this quantum */
+#define TIF_FIXADE             10      /* Fix address errors in software */
+#define TIF_LOGADE             20      /* Log address errors to syslog */
+#define TIF_32BIT_REGS         21      /* 32-bit general purpose registers */
+#define TIF_32BIT_ADDR         22      /* 32-bit address space */
+#define TIF_LOAD_WATCH         23      /* If set, load watch registers */
+#define TIF_SINGLESTEP         24      /* Single Step */
+#define TIF_LSX_CTX_LIVE       25      /* LSX context must be preserved */
+#define TIF_LASX_CTX_LIVE      26      /* LASX context must be preserved */
+#define TIF_USEDLBT            27      /* LBT was used by this task this quantum (SMP) */
+#define TIF_LBT_CTX_LIVE       28      /* LBT context must be preserved */
 
-#define _TIF_NEED_RESCHED      (1<<TIF_NEED_RESCHED)
-#define _TIF_NEED_RESCHED_LAZY (1<<TIF_NEED_RESCHED_LAZY)
-#define _TIF_SIGPENDING                (1<<TIF_SIGPENDING)
-#define _TIF_NOTIFY_RESUME     (1<<TIF_NOTIFY_RESUME)
-#define _TIF_NOTIFY_SIGNAL     (1<<TIF_NOTIFY_SIGNAL)
-#define _TIF_NOHZ              (1<<TIF_NOHZ)
-#define _TIF_UPROBE            (1<<TIF_UPROBE)
-#define _TIF_USEDFPU           (1<<TIF_USEDFPU)
-#define _TIF_USEDSIMD          (1<<TIF_USEDSIMD)
-#define _TIF_FIXADE            (1<<TIF_FIXADE)
-#define _TIF_LOGADE            (1<<TIF_LOGADE)
-#define _TIF_32BIT_REGS                (1<<TIF_32BIT_REGS)
-#define _TIF_32BIT_ADDR                (1<<TIF_32BIT_ADDR)
-#define _TIF_LOAD_WATCH                (1<<TIF_LOAD_WATCH)
-#define _TIF_SINGLESTEP                (1<<TIF_SINGLESTEP)
-#define _TIF_LSX_CTX_LIVE      (1<<TIF_LSX_CTX_LIVE)
-#define _TIF_LASX_CTX_LIVE     (1<<TIF_LASX_CTX_LIVE)
-#define _TIF_USEDLBT           (1<<TIF_USEDLBT)
-#define _TIF_LBT_CTX_LIVE      (1<<TIF_LBT_CTX_LIVE)
-#define _TIF_PATCH_PENDING     (1<<TIF_PATCH_PENDING)
+#define _TIF_NOHZ              BIT(TIF_NOHZ)
+#define _TIF_USEDFPU           BIT(TIF_USEDFPU)
+#define _TIF_USEDSIMD          BIT(TIF_USEDSIMD)
+#define _TIF_FIXADE            BIT(TIF_FIXADE)
+#define _TIF_LOGADE            BIT(TIF_LOGADE)
+#define _TIF_32BIT_REGS                BIT(TIF_32BIT_REGS)
+#define _TIF_32BIT_ADDR                BIT(TIF_32BIT_ADDR)
+#define _TIF_LOAD_WATCH                BIT(TIF_LOAD_WATCH)
+#define _TIF_SINGLESTEP                BIT(TIF_SINGLESTEP)
+#define _TIF_LSX_CTX_LIVE      BIT(TIF_LSX_CTX_LIVE)
+#define _TIF_LASX_CTX_LIVE     BIT(TIF_LASX_CTX_LIVE)
+#define _TIF_USEDLBT           BIT(TIF_USEDLBT)
+#define _TIF_LBT_CTX_LIVE      BIT(TIF_LBT_CTX_LIVE)
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_THREAD_INFO_H */