From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 27 May 2025 23:32:01 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uK1tx-000yPS-1I for lore@lore.pengutronix.de; Tue, 27 May 2025 23:32:01 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uK1tv-0005rX-6b for lore@pengutronix.de; Tue, 27 May 2025 23:32:01 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=P0qpbSt3I8Qe/Ec9ZfXsMiVKULZ2pyUxqxXyFMNq5XA=; b=jNedg96lUffFJ0aLL+L5wn2tNI iOR98zwhZyKnwsQNbayTIZYG31xttiWN259RI6RX0ET1z2/2J24IZ2YEIeNfKbWO8KxtyiwugfzRj YZ2RQLKU9KKMLOVQK6XQV9+T1YK1t5BGJmxF/854rwr9+p6z7jhb3xPSEotu0a7SWkIkAUUcs92SP RybUUUtC3oxs88aC7NofHV9gBJGvosQmCYnynBK902S25tARHzM/CzTA9VGVoYGCtM4T0lFgwKqL5 EI3N+Swxzo7thppcuVmD5tvdSmAtzwjcYZb7yeB8XCAtihbJShI7aRz52t2jotzkR0P7duFI2+4wf dcV/7TVA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uK1tO-0000000BbuN-2pJD; Tue, 27 May 2025 21:31:26 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uK1lW-0000000Bb0H-0KhH for barebox@lists.infradead.org; Tue, 27 May 2025 21:23:19 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=geraet.fritz.box) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1uK1lU-00015n-NK; Tue, 27 May 2025 23:23:16 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Tue, 27 May 2025 23:22:59 +0200 Message-Id: <20250527212300.575031-15-a.fatoum@barebox.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250527212300.575031-1-a.fatoum@barebox.org> References: <20250527212300.575031-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250527_142318_113777_378AD6A9 X-CRM114-Status: GOOD ( 10.54 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-7.6 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 14/15] clocksource: efi: use DIV_ROUND_DOWN_ULL for 64-bit devision X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) From: Ahmad Fatoum The denominator freq is 64-bit, but this worked out ok so far, because the driver was only used on 64-bit systems. Now that we want to start compiling it for 32-bit as well, make the division work there as well. Note that nb_100ns is a valid result and will instruct the EFI firmware to expire the timer at the next tick. Signed-off-by: Ahmad Fatoum --- drivers/clocksource/efi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clocksource/efi.c b/drivers/clocksource/efi.c index 1ac587a715f2..2f8bfdec489a 100644 --- a/drivers/clocksource/efi.c +++ b/drivers/clocksource/efi.c @@ -74,7 +74,7 @@ static int efi_cs_init(struct clocksource *cs) BS->close_event(efi_cs_evt); return -ENODEV; } - nb_100ns = 10 * 1000 * 1000 / freq; + nb_100ns = DIV_ROUND_DOWN_ULL(10 * 1000 * 1000, freq); pr_warn("EFI Event timer too slow freq = %llu Hz\n", freq); efiret = BS->set_timer(efi_cs_evt, EFI_TIMER_PERIODIC, nb_100ns); if (EFI_ERROR(efiret)) { -- 2.39.5