From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 27AD740BCBB for ; Wed, 19 Aug 2026 10:23:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787135030; cv=none; b=cTF+dJi3lX7XoOoSdTxQ+DuwQRfCjT4hVNfVV9fkvEFHWsuQ3t0tAdTW9htUMQ2cjeiHINRgaR/NLkQT/bp7VNU7Sl+cfoXLz+yZpfqDolzkhtXhvKyVd1s2ClF/VAxHoblGoyAVsY4tD7BqK41wlQ0c0iooMlZhdJB84U7I7CE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787135030; c=relaxed/simple; bh=gwHt7MotFvQBQuKYACyYC4fo8s+0BbXyOtR3Y2XMe3M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Gw5i/NVPA1SBywwJAuovuKwNJwYJwVRI92vn/JRAHHSKnus5X8wp63HV5xadnaVDHhflrdtE9DW54R9q7F7Tva8ebr9XnODJOIjDfOlIsJfXLyO7eQwzkiL/9ZcTlS7nJYY1dOC7pn6K0fejfZ5toT8jExC8A7G51rNEe/F0bSk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 5A9CB3EDB; Wed, 19 Aug 2026 10:23:47 +0000 (UTC) Authentication-Results: smtp-out2.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 3A8B6362E; Wed, 19 Aug 2026 10:23:47 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id E246DTOEhWq3EgAAD6G6ig (envelope-from ); Wed, 19 Aug 2026 10:23:47 +0000 From: Juergen Gross To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Juergen Gross , David Airlie Subject: [PATCH v2 05/13] agp/nvidia: Stop using 32-bit MSR interfaces Date: Wed, 19 Aug 2026 12:23:06 +0200 Message-ID: <20260819102314.1499258-6-jgross@suse.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260819102314.1499258-1-jgross@suse.com> References: <20260819102314.1499258-1-jgross@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spam-Flag: NO X-Spam-Score: -4.00 X-Spam-Level: X-Rspamd-Queue-Id: 5A9CB3EDB X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Action: no action The 32-bit MSR interfaces rdmsr() and wrmsr() are planned to be removed. Use the related 64-bit variants instead. Signed-off-by: Juergen Gross --- drivers/char/agp/nvidia-agp.c | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-) diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c index 4787391bb6b4..3e760bc00afa 100644 --- a/drivers/char/agp/nvidia-agp.c +++ b/drivers/char/agp/nvidia-agp.c @@ -65,22 +65,20 @@ static int nvidia_fetch_size(void) static int nvidia_init_iorr(u32 base, u32 size) { - u32 base_hi, base_lo; - u32 mask_hi, mask_lo; - u32 sys_hi, sys_lo; + struct msr base_msr, mask_msr, sys_msr; u32 iorr_addr, free_iorr_addr; /* Find the iorr that is already used for the base */ /* If not found, determine the uppermost available iorr */ free_iorr_addr = AMD_K7_NUM_IORR; for (iorr_addr = 0; iorr_addr < AMD_K7_NUM_IORR; iorr_addr++) { - rdmsr(IORR_BASE0 + 2 * iorr_addr, base_lo, base_hi); - rdmsr(IORR_MASK0 + 2 * iorr_addr, mask_lo, mask_hi); + rdmsrq(IORR_BASE0 + 2 * iorr_addr, base_msr.q); + rdmsrq(IORR_MASK0 + 2 * iorr_addr, mask_msr.q); - if ((base_lo & 0xfffff000) == (base & 0xfffff000)) + if ((base_msr.l & 0xfffff000) == (base & 0xfffff000)) break; - if ((mask_lo & 0x00000800) == 0) + if ((mask_msr.l & 0x00000800) == 0) free_iorr_addr = iorr_addr; } @@ -89,16 +87,16 @@ static int nvidia_init_iorr(u32 base, u32 size) if (iorr_addr >= AMD_K7_NUM_IORR) return -EINVAL; } - base_hi = 0x0; - base_lo = (base & ~0xfff) | 0x18; - mask_hi = 0xf; - mask_lo = ((~(size - 1)) & 0xfffff000) | 0x800; - wrmsr(IORR_BASE0 + 2 * iorr_addr, base_lo, base_hi); - wrmsr(IORR_MASK0 + 2 * iorr_addr, mask_lo, mask_hi); - - rdmsr(SYSCFG, sys_lo, sys_hi); - sys_lo |= 0x00100000; - wrmsr(SYSCFG, sys_lo, sys_hi); + base_msr.h = 0x0; + base_msr.l = (base & ~0xfff) | 0x18; + mask_msr.h = 0xf; + mask_msr.l = ((~(size - 1)) & 0xfffff000) | 0x800; + wrmsrq(IORR_BASE0 + 2 * iorr_addr, base_msr.q); + wrmsrq(IORR_MASK0 + 2 * iorr_addr, mask_msr.q); + + rdmsrq(SYSCFG, sys_msr.q); + sys_msr.l |= 0x00100000; + wrmsrq(SYSCFG, sys_msr.q); return 0; } -- 2.55.0