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Re: [Qemu-devel] [RFC v2 PATCH 09/13] tcg/sparc: Add support for fence

From: Richard Henderson
Subject: Re: [Qemu-devel] [RFC v2 PATCH 09/13] tcg/sparc: Add support for fence
Date: Tue, 31 May 2016 13:45:53 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 
On 05/31/2016 11:39 AM, Pranith Kumar wrote:

+    case INDEX_op_mb:
+        /* membar #LoadLoad|#LoadStore|#StoreStore|#StoreLoad */
+        tcg_out32(s, MEMBAR | 15);
+        break;


With the argument, this needs to be

        if (a0 == TCG_MB_WRITE) {
                /* #StoreStore | #StoreLoad */
                a0 = 0xa;
        } else if (a0 == TCG_MB_READ) {
                /* #LoadStore | #LoadLoad */
                a0 = 0x5;
        } else {
                /* #StoreStore | #LoadStore | #StoreLoad | #LoadLoad */
                a0 = 0xf;
        }
        tcg_out32(s, MEMBAR | a0);


r~
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