From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 14 Apr 2026 08:31:46 +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 1wCXJK-00BzDm-0J for lore@lore.pengutronix.de; Tue, 14 Apr 2026 08:31:46 +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 1wCXJJ-0007LS-HN for lore@pengutronix.de; Tue, 14 Apr 2026 08:31:46 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=U7y0XjwVZQ2Y+rHBomZ8mkgCEVX02kwxON4EfcBU704=; b=YFNpRQyFLIq3W2fsqJ0YvC2JG4 UyWzGHDoHUaCf5SG1DIIdQlKkBntUMLwYkgJbVHSZqzgQsCZ7lFcwBo/XUWcGYUHisGarpROk+vSs gU+oAqonyDlFRwLgsdHKC1tmJdADT1PwCbMSE5d2v9C1ePSr9THTNQAWw0qDg41zffuRXqouvRY9K n6ENx/oklKY9VQ6bDdH+y6I5ZyFvK6ZWolA6X0l0TA4cezqGZVmMpeff+RT/E5hG6iGeem435a8fk WGbVjqa+srB6f9emFdPXkOr7A1Chi1ofowHtKHATNE4t29uLPVqaQl6EBX1BPXft7KYYDPjEMCLmW euhk1J7w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wCXIi-0000000GqXJ-2nFW; Tue, 14 Apr 2026 06:31:08 +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 1wCXIf-0000000GqWR-0BNB for barebox@lists.infradead.org; Tue, 14 Apr 2026 06:31:07 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1wCXIc-0007F2-Qi; Tue, 14 Apr 2026 08:31:02 +0200 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wCXIc-005IMA-23; Tue, 14 Apr 2026 08:31:02 +0200 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.98.2) (envelope-from ) id 1wCXIc-00000009Q4V-2FLX; Tue, 14 Apr 2026 08:31:02 +0200 Date: Tue, 14 Apr 2026 08:31:02 +0200 From: Sascha Hauer To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: References: <20260413102812.1481805-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260413102812.1481805-1-a.fatoum@barebox.org> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260413_233105_079439_590AD44F X-CRM114-Status: GOOD ( 17.23 ) 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=-5.1 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: Re: [PATCH] mem: add flush callback to sync caches for execution 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) On Mon, Apr 13, 2026 at 12:28:12PM +0200, Ahmad Fatoum wrote: > barebox always calls sync_caches_for_execution() on boot, but it can be > useful to trigger it manually when testing: > > - memcpy -s /dev/zero -d /dev/mem 0 $TFA_REGION_BASE $TFA_REGION_SIZE > - sync /dev/mem # flush D$ and invalidate I$ > - smc -i # check if PSCI monitor is still usable > > Signed-off-by: Ahmad Fatoum > --- > drivers/misc/mem.c | 8 ++++++++ > 1 file changed, 8 insertions(+) Reverted this one. It breaks compilation on riscv: In file included from drivers/misc/mem.c:9: arch/riscv/include/asm/cache.h: In function 'local_flush_icache_all': arch/riscv/include/asm/cache.h:25:9: error: implicit declaration of function 'riscv_vendor_id' [-Werror=implicit-function-declaration] 25 | switch(riscv_vendor_id()) { And PowerPC: powerpc-603e-linux-gnu-ld: drivers/misc/mem.o: in function `mem_flush': drivers/misc/mem.c:13:(.text.mem_flush+0xc): undefined reference to `sync_caches_for_execution' make[1]: *** [Makefile:1099: barebox] Error 1 Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |