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bh=yCHGbyRk5hYZ0mienSz5EBN8tN/NnBnLEazWOHW1xKE=; b=IOOEQKIqvfN9J/6yjNQOB9AJfRTPZWxMLSLsDxqv+TmAkFzBwiFL7aWjaJkX8tA6FHJwvA o4TpjyczybOkn7hd8l9eaXQeNAy9yk5uQBRzp++nENYAOxRKOyAaqzOqoBJQwEE2c5rx56 gULW4lk8NqFU44swXR5n3YX1FNkWrAs= X-MC-Unique: F3H_hY2GNNqfG1V5fbZvHw-1 From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 03/13] sm501: Ignore no-op blits Date: Wed, 1 Jul 2020 17:04:15 +0200 Message-Id: <20200701150425.13739-4-kraxel@redhat.com> In-Reply-To: <20200701150425.13739-1-kraxel@redhat.com> References: <20200701150425.13739-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=207.211.31.81; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/01 00:56:58 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: qemu-ppc@nongnu.org, Gerd Hoffmann Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: BALATON Zoltan Some guests seem to try source copy blits with same source and dest which are no-op so avoid calling pixman for these. Signed-off-by: BALATON Zoltan Reviewed-by: Peter Maydell Message-id: a2a8214dd37344dfb65f1c343ace4cff2e94f3bb.1592686588.git.balaton= @eik.bme.hu Signed-off-by: Gerd Hoffmann --- hw/display/sm501.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/display/sm501.c b/hw/display/sm501.c index 5d2e0195753a..ad5a62bfab1b 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -788,6 +788,11 @@ static void sm501_2d_operation(SM501State *s) (rop2_source_is_pattern ? " with pattern source" : "")); } + /* Ignore no-op blits, some guests seem to do this */ + if (src_base =3D=3D dst_base && src_pitch =3D=3D dst_pitch && + src_x =3D=3D dst_x && src_y =3D=3D dst_y) { + break; + } /* Check for overlaps, this could be made more exact */ uint32_t sb, se, db, de; sb =3D src_base + src_x + src_y * (width + src_pitch); --=20 2.18.4