From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751035AbbJAVXX (ORCPT ); Thu, 1 Oct 2015 17:23:23 -0400 Received: from ns.gsystem.sk ([62.176.172.50]:33783 "EHLO gsystem.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750803AbbJAVXT (ORCPT ); Thu, 1 Oct 2015 17:23:19 -0400 From: Ondrej Zary To: Paul Mackerras Cc: =Tomi Valkeinen , linux-fbdev@vger.kernel.org, Kernel development list Subject: [PATCH v2 4/5] gxt4500: Use arch_phys_wc_* for framebuffer Date: Thu, 1 Oct 2015 23:22:54 +0200 Message-Id: <1443734575-12468-5-git-send-email-linux@rainbow-software.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1443734575-12468-1-git-send-email-linux@rainbow-software.org> References: <1443734575-12468-1-git-send-email-linux@rainbow-software.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add arch_phys_wc_* calls to allow write-combining using MTRR. Signed-off-by: Ondrej Zary --- drivers/video/fbdev/gxt4500.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/gxt4500.c b/drivers/video/fbdev/gxt4500.c index 3ceddb8..31de650 100644 --- a/drivers/video/fbdev/gxt4500.c +++ b/drivers/video/fbdev/gxt4500.c @@ -142,7 +142,7 @@ static const unsigned char watfmt[] = { struct gxt4500_par { void __iomem *regs; - + int wc_cookie; int pixfmt; /* pixel format, see DFA_PIX_* values */ /* PLL parameters */ @@ -671,6 +671,9 @@ static int gxt4500_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, info); + par->wc_cookie = arch_phys_wc_add(info->fix.smem_start, + info->fix.smem_len); + #ifdef __BIG_ENDIAN /* Set byte-swapping for DFA aperture for all pixel sizes */ pci_write_config_dword(pdev, CFG_ENDIAN0, 0x333300); @@ -735,6 +738,7 @@ static void gxt4500_remove(struct pci_dev *pdev) return; par = info->par; unregister_framebuffer(info); + arch_phys_wc_del(par->wc_cookie); fb_dealloc_cmap(&info->cmap); iounmap(par->regs); iounmap(info->screen_base); -- Ondrej Zary