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[187.189.51.144]) by smtp.gmail.com with ESMTPSA id t2sm9337749qtd.13.2021.03.14.14.27.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Mar 2021 14:27:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=eK04d/bo+QTgBddX7q0xdbozbAL0+oUVhNKLX/4OLZA=; b=zmL8y45JHUuZuFhWXxgi/ZsDWCdDLKmNjJdywF8q2VlzzTQh7n+wawJvyaliJAd7NQ LsHFQXoSde6Go3YQbMn9Ci4sWPGTz/HhBZZi+OAa3vOxTQ8rp1fpUkfuMX6jo5FFxY5M +JQEWLSxLL3GImIjDfHBkCYgmdoL9UlWO2hc2ZJWysveDFsfoZ8/TCxvxWNnA43mOmHV jE1mqK+kxLHWXu6IAze7Tb6XXgAlDid71c/DtrpB+fOaHmEdyoI50BXsRmbFcjHHRKkS YRLweATzhQuDiXRdq5gF7ITPUfZCVm9RBX6Da9jL/9CimE4hVmujE601EaqzD2QTIxCi D+OA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eK04d/bo+QTgBddX7q0xdbozbAL0+oUVhNKLX/4OLZA=; b=JbZANrDqO6IWink3iCFtSBLOAiWjdnhhkZXtCaWE3jcoKU6beKGIbnSxrW0VPYJtCn fZOOCi6Vc6/Kwg/Cyltl/c6A3LRvxSN/kZcv3MxpFXSzLr+qZlY0gIt3llpiHbf3xRUX vFIU8v5XMhF9lFFlUlTd0GXd9dc0HLYYA48shbF0OpyEDjXLy2K+e5OXqjyCpFPE4vI0 ka+egSPqX4j/79EbODOqRruXnYk4U9V0ZWqhxHMB5EdNu8r297KJ72vK8toR0HRApr/X uCz42KT/wA3Lro9hiI5Kc0e/ib+JJnbbJFlJEQPCycU2SCkz2PaZjtLmEh9xaFW1ii/Q Zqqw== X-Gm-Message-State: AOAM532RCTTNp+oYI1kuFVeYD4jpSrTeNtrWXFPOwnkFlL4g5mTrI0gg RoVdtDOWrsZC0xmu8Bo+Nrk6lcOUba9nHCo2 X-Google-Smtp-Source: ABdhPJzZ6YUURZ8xl8exLQ5pYjOud2b0uRx0fREUTB6geYeOxE/QtOKpGYy2id79SUeTtkP7A3beBA== X-Received: by 2002:a37:4690:: with SMTP id t138mr22528857qka.394.1615757268014; Sun, 14 Mar 2021 14:27:48 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 19/29] tcg: Tidy split_cross_256mb Date: Sun, 14 Mar 2021 15:27:14 -0600 Message-Id: <20210314212724.1917075-20-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210314212724.1917075-1-richard.henderson@linaro.org> References: <20210314212724.1917075-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::72c; envelope-from=richard.henderson@linaro.org; helo=mail-qk1-x72c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: r.bolshakov@yadro.com, j@getutm.app Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Return output buffer and size via output pointer arguments, rather than returning size via tcg_ctx->code_gen_buffer_size. Signed-off-by: Richard Henderson --- tcg/region.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/tcg/region.c b/tcg/region.c index 23b3459c61..45c1178815 100644 --- a/tcg/region.c +++ b/tcg/region.c @@ -467,7 +467,8 @@ static inline bool cross_256mb(void *addr, size_t size) /* We weren't able to allocate a buffer without crossing that boundary, so make do with the larger portion of the buffer that doesn't cross. Returns the new base of the buffer, and adjusts code_gen_buffer_size. = */ -static inline void *split_cross_256mb(void *buf1, size_t size1) +static inline void split_cross_256mb(void **obuf, size_t *osize, + void *buf1, size_t size1) { void *buf2 =3D (void *)(((uintptr_t)buf1 + size1) & ~0x0ffffffful); size_t size2 =3D buf1 + size1 - buf2; @@ -478,8 +479,8 @@ static inline void *split_cross_256mb(void *buf1, size_= t size1) buf1 =3D buf2; } =20 - tcg_ctx->code_gen_buffer_size =3D size1; - return buf1; + *obuf =3D buf1; + *osize =3D size1; } #endif =20 @@ -509,12 +510,10 @@ static bool alloc_code_gen_buffer(size_t tb_size, int= splitwx, Error **errp) if (size > tb_size) { size =3D QEMU_ALIGN_DOWN(tb_size, qemu_real_host_page_size); } - tcg_ctx->code_gen_buffer_size =3D size; =20 #ifdef __mips__ if (cross_256mb(buf, size)) { - buf =3D split_cross_256mb(buf, size); - size =3D tcg_ctx->code_gen_buffer_size; + split_cross_256mb(&buf, &size, buf, size); } #endif =20 @@ -525,6 +524,7 @@ static bool alloc_code_gen_buffer(size_t tb_size, int s= plitwx, Error **errp) qemu_madvise(buf, size, QEMU_MADV_HUGEPAGE); =20 tcg_ctx->code_gen_buffer =3D buf; + tcg_ctx->code_gen_buffer_size =3D size; return true; } #elif defined(_WIN32) @@ -583,8 +583,7 @@ static bool alloc_code_gen_buffer_anon(size_t size, int= prot, /* fallthru */ default: /* Split the original buffer. Free the smaller half. */ - buf2 =3D split_cross_256mb(buf, size); - size2 =3D tcg_ctx->code_gen_buffer_size; + split_cross_256mb(&buf2, &size2, buf, size); if (buf =3D=3D buf2) { munmap(buf + size2, size - size2); } else { --=20 2.25.1