Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-6.0-pull-request' into staging

Add MIPS Loongson 2F/3A
sparc64 bug fix
Implement copy_file_range
Add most IFTUN ioctls
Fix mremap

# gpg: Signature made Fri 18 Dec 2020 10:23:43 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-6.0-pull-request:
  linux-user/sparc: Handle tstate in sparc64_get/set_context()
  linux-user/sparc: Don't restore %g7 in sparc64_set_context()
  linux-user/sparc: Remove unneeded checks of 'err' from sparc64_get_context()
  linux-user/sparc: Correct sparc64_get/set_context() FPU handling
  linux-user: Add most IFTUN ioctls
  linux-user: Implement copy_file_range
  docs/user: Display linux-user binaries nicely
  linux-user: Add support for MIPS Loongson 2F/3A
  linux-user/elfload: Update HWCAP bits from linux 5.7
  linux-user/elfload: Introduce MIPS GET_FEATURE_REG_EQU() macro
  linux-user/elfload: Introduce MIPS GET_FEATURE_REG_SET() macro
  linux-user/elfload: Rename MIPS GET_FEATURE() as GET_FEATURE_INSN()
  linux-user/elfload: Move GET_FEATURE macro out of get_elf_hwcap() body
  linux-user/mmap.c: check range of mremap result in target address space

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 24 insertions, 9 deletions

diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h
index b9369398f2..4b2290650b 100644
--- a/target/sparc/cpu.h
+++ b/target/sparc/cpu.h
@@ -156,7 +156,9 @@ enum {
 #define PS_IE    (1<<1)
 #define PS_AG    (1<<0) /* v9, zero on UA2007 */
 
-#define FPRS_FEF (1<<2)
+#define FPRS_DL (1 << 0)
+#define FPRS_DU (1 << 1)
+#define FPRS_FEF (1 << 2)
 
 #define HS_PRIV  (1<<2)
 #endif
@@ -606,10 +608,6 @@ target_ulong cpu_get_psr(CPUSPARCState *env1);
 void cpu_put_psr(CPUSPARCState *env1, target_ulong val);
 void cpu_put_psr_raw(CPUSPARCState *env1, target_ulong val);
 #ifdef TARGET_SPARC64
-target_ulong cpu_get_ccr(CPUSPARCState *env1);
-void cpu_put_ccr(CPUSPARCState *env1, target_ulong val);
-target_ulong cpu_get_cwp64(CPUSPARCState *env1);
-void cpu_put_cwp64(CPUSPARCState *env1, int cwp);
 void cpu_change_pstate(CPUSPARCState *env1, uint32_t new_pstate);
 void cpu_gl_switch_gregs(CPUSPARCState *env, uint32_t new_gl);
 #endif
@@ -827,4 +825,24 @@ static inline bool tb_am_enabled(int tb_flags)
 #endif
 }
 
+#ifdef TARGET_SPARC64
+/* win_helper.c */
+target_ulong cpu_get_ccr(CPUSPARCState *env1);
+void cpu_put_ccr(CPUSPARCState *env1, target_ulong val);
+target_ulong cpu_get_cwp64(CPUSPARCState *env1);
+void cpu_put_cwp64(CPUSPARCState *env1, int cwp);
+
+static inline uint64_t sparc64_tstate(CPUSPARCState *env)
+{
+    uint64_t tstate = (cpu_get_ccr(env) << 32) |
+        ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) |
+        cpu_get_cwp64(env);
+
+    if (env->def.features & CPU_FEATURE_GL) {
+        tstate |= (env->gl & 7ULL) << 40;
+    }
+    return tstate;
+}
+#endif
+
 #endif
diff --git a/target/sparc/int64_helper.c b/target/sparc/int64_helper.c
index ba95bf228c..7fb8ab211c 100644
--- a/target/sparc/int64_helper.c
+++ b/target/sparc/int64_helper.c
@@ -131,9 +131,7 @@ void sparc_cpu_do_interrupt(CPUState *cs)
     }
     tsptr = cpu_tsptr(env);
 
-    tsptr->tstate = (cpu_get_ccr(env) << 32) |
-        ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) |
-        cpu_get_cwp64(env);
+    tsptr->tstate = sparc64_tstate(env);
     tsptr->tpc = env->pc;
     tsptr->tnpc = env->npc;
     tsptr->tt = intno;
@@ -148,7 +146,6 @@ void sparc_cpu_do_interrupt(CPUState *cs)
     }
 
     if (env->def.features & CPU_FEATURE_GL) {
-        tsptr->tstate |= (env->gl & 7ULL) << 40;
         cpu_gl_switch_gregs(env, env->gl + 1);
         env->gl++;
     }