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authorPeter Maydell2015-06-12 15:31:13 +0200
committerPeter Maydell2015-06-12 15:31:13 +0200
commit9faffeb7772fddcb5d3fb2dbdcfe7e8a38f01637 (patch)
tree10c1ed61728991c12a059e1ea56f716ac64a7c74 /linux-user
parentMerge remote-tracking branch 'remotes/lalrae/tags/mips-20150612' into staging (diff)
parenttarget-sh4: remove dead code (diff)
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Merge remote-tracking branch 'remotes/aurel/tags/pull-sh4-next-20150612' into staging
sh4 linux-user cpu and hwcap misc optimizations and cleanup convert r2d to new MMIO accessor style # gpg: Signature made Fri Jun 12 11:28:43 2015 BST using RSA key ID 1DDD8C9B # gpg: Good signature from "Aurelien Jarno <aurelien@aurel32.net>" # gpg: aka "Aurelien Jarno <aurelien@jarno.fr>" # gpg: aka "Aurelien Jarno <aurel32@debian.org>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 7746 2642 A9EF 94FD 0F77 196D BA9C 7806 1DDD 8C9B * remotes/aurel/tags/pull-sh4-next-20150612: target-sh4: remove dead code target-sh4: factorize fmov implementation target-sh4: split out Q and M from of SR and optimize div1 target-sh4: optimize negc using add2 and sub2 target-sh4: optimize subc using sub2 target-sh4: optimize addc using add2 target-sh4: Split out T from SR target-sh4: use bit number for SR constants sh4/r2d: convert to new MMIO accessor style linux-user: Add HWCAP for SH4 linux-user: Default sh4 to sh7785 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/elfload.c29
-rw-r--r--linux-user/main.c2
2 files changed, 31 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 0ba97062b7..b71e866973 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1075,6 +1075,35 @@ static inline void elf_core_copy_regs(target_elf_gregset_t *regs,
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE 4096
+enum {
+ SH_CPU_HAS_FPU = 0x0001, /* Hardware FPU support */
+ SH_CPU_HAS_P2_FLUSH_BUG = 0x0002, /* Need to flush the cache in P2 area */
+ SH_CPU_HAS_MMU_PAGE_ASSOC = 0x0004, /* SH3: TLB way selection bit support */
+ SH_CPU_HAS_DSP = 0x0008, /* SH-DSP: DSP support */
+ SH_CPU_HAS_PERF_COUNTER = 0x0010, /* Hardware performance counters */
+ SH_CPU_HAS_PTEA = 0x0020, /* PTEA register */
+ SH_CPU_HAS_LLSC = 0x0040, /* movli.l/movco.l */
+ SH_CPU_HAS_L2_CACHE = 0x0080, /* Secondary cache / URAM */
+ SH_CPU_HAS_OP32 = 0x0100, /* 32-bit instruction support */
+ SH_CPU_HAS_PTEAEX = 0x0200, /* PTE ASID Extension support */
+};
+
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+ SuperHCPU *cpu = SUPERH_CPU(thread_cpu);
+ uint32_t hwcap = 0;
+
+ hwcap |= SH_CPU_HAS_FPU;
+
+ if (cpu->env.features & SH_FEATURE_SH4A) {
+ hwcap |= SH_CPU_HAS_LLSC;
+ }
+
+ return hwcap;
+}
+
#endif
#ifdef TARGET_CRIS
diff --git a/linux-user/main.c b/linux-user/main.c
index 6989b82455..a0d3e58bd4 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3925,6 +3925,8 @@ int main(int argc, char **argv, char **envp)
# else
cpu_model = "750";
# endif
+#elif defined TARGET_SH4
+ cpu_model = TYPE_SH7785_CPU;
#else
cpu_model = "any";
#endif