mirror of https://github.com/proxmox/mirror_qemu
Optimize redundant cp15 coprocessor access control register writes.
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5512 c046a42c-6fe2-441c-8c8c-71466251a162master
parent
3a742b7643
commit
4be27dbbde
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@ -1334,9 +1334,11 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn, uint32_t val)
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case 2:
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case 2:
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if (arm_feature(env, ARM_FEATURE_XSCALE))
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if (arm_feature(env, ARM_FEATURE_XSCALE))
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goto bad_reg;
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goto bad_reg;
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env->cp15.c1_coproc = val;
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if (env->cp15.c1_coproc != val) {
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/* ??? Is this safe when called from within a TB? */
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env->cp15.c1_coproc = val;
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tb_flush(env);
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/* ??? Is this safe when called from within a TB? */
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tb_flush(env);
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}
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break;
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break;
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default:
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default:
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goto bad_reg;
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goto bad_reg;
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