From patchwork Mon May 4 01:09:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 1282165 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20170209 header.b=dyY4lmcQ; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (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 ozlabs.org (Postfix) with ESMTPS id 49FlGC3lxlz9sSt for ; Mon, 4 May 2020 11:12:51 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9IzD8P6gLOc+fOBqPJZjPIC0zrCpRvhWc5wA7IWEVaU=; b=dyY4lmcQvis65N fK0x/l/jF1xHv4zcFb+55QHRB+4eNeDgIHfodMMnzjdeQdmDx2FDEwRe2FZ9uIfoZ/0T8WnBHbe/L +k8HlC4KMdTD24KOqkz+w58M2P091UxT+eldb+2nHODc4Fv2Fx1alUc0sw7RKmPRqXT3tgJnQjDz4 ElKpLcCIKjjQDbwGMq359bRm/Coy7D+IVhEG/eMua4rjfEeAwsbMf60spj61CDZTSmdBhwnXQ8gwY nNIzCNKgKStDzAN3ZN8oOxahQ3Og6B6N+6qwrHnme2KEEQ/Wr124a5AccgIeoeZ+oOyAfhJHTntXo oCyB6U7qMJc2rA4p0BOg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jVPf7-0001MD-Am; Mon, 04 May 2020 01:12:49 +0000 Received: from mga01.intel.com ([192.55.52.88]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jVPbu-00047O-4G; Mon, 04 May 2020 01:09:32 +0000 IronPort-SDR: l67wuNPNofzvy0k0dL6XwmTCzY8MxhBzDrYCJZ1lBZhwQ8Yeas86KzAuHVJBz4NkoRbKgiZd91 BN6z1BLvWmBA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2020 18:09:29 -0700 IronPort-SDR: yIWbpyNnJK23O38ot1zP6qnkQwoJpxscFho/IBZq1ORSeIXkL2daLFySWpbNKHcGiinXSlxc8a TqbJxPtSi8Rg== X-IronPort-AV: E=Sophos;i="5.73,350,1583222400"; d="scan'208";a="283749975" Received: from iweiny-desk2.sc.intel.com (HELO localhost) ([10.3.52.147]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2020 18:09:29 -0700 From: ira.weiny@intel.com To: linux-kernel@vger.kernel.org, Andrew Morton , Christian Koenig , Huang Rui Subject: [PATCH V2 11/11] drm: Remove drm specific kmap_atomic code Date: Sun, 3 May 2020 18:09:12 -0700 Message-Id: <20200504010912.982044-12-ira.weiny@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200504010912.982044-1-ira.weiny@intel.com> References: <20200504010912.982044-1-ira.weiny@intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200503_180930_247234_7F027DD8 X-CRM114-Status: GOOD ( 14.97 ) X-Spam-Score: -5.0 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-5.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [192.55.52.88 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [192.55.52.88 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Zijlstra , Benjamin Herrenschmidt , Dave Hansen , dri-devel@lists.freedesktop.org, "James E.J. Bottomley" , Max Filippov , Paul Mackerras , "H. Peter Anvin" , sparclinux@vger.kernel.org, Ira Weiny , Thomas Gleixner , Helge Deller , x86@kernel.org, linux-csky@vger.kernel.org, Christoph Hellwig , Ingo Molnar , linux-snps-arc@lists.infradead.org, linux-xtensa@linux-xtensa.org, Borislav Petkov , Andy Lutomirski , Dan Williams , linux-arm-kernel@lists.infradead.org, Chris Zankel , Thomas Bogendoerfer , linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "David S. Miller" Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Ira Weiny kmap_atomic_prot() is now exported by all architectures. Use this function rather than open coding a driver specific kmap_atomic. Reviewed-by: Christian König Reviewed-by: Christoph Hellwig Signed-off-by: Ira Weiny Acked-by: Daniel Vetter --- drivers/gpu/drm/ttm/ttm_bo_util.c | 56 ++-------------------------- drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 16 ++++---- include/drm/ttm/ttm_bo_api.h | 4 -- 3 files changed, 12 insertions(+), 64 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 52d2b71f1588..f09b096ba4fd 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -257,54 +257,6 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page) return 0; } -#ifdef CONFIG_X86 -#define __ttm_kmap_atomic_prot(__page, __prot) kmap_atomic_prot(__page, __prot) -#define __ttm_kunmap_atomic(__addr) kunmap_atomic(__addr) -#else -#define __ttm_kmap_atomic_prot(__page, __prot) vmap(&__page, 1, 0, __prot) -#define __ttm_kunmap_atomic(__addr) vunmap(__addr) -#endif - - -/** - * ttm_kmap_atomic_prot - Efficient kernel map of a single page with - * specified page protection. - * - * @page: The page to map. - * @prot: The page protection. - * - * This function maps a TTM page using the kmap_atomic api if available, - * otherwise falls back to vmap. The user must make sure that the - * specified page does not have an aliased mapping with a different caching - * policy unless the architecture explicitly allows it. Also mapping and - * unmapping using this api must be correctly nested. Unmapping should - * occur in the reverse order of mapping. - */ -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot) -{ - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) - return kmap_atomic(page); - else - return __ttm_kmap_atomic_prot(page, prot); -} -EXPORT_SYMBOL(ttm_kmap_atomic_prot); - -/** - * ttm_kunmap_atomic_prot - Unmap a page that was mapped using - * ttm_kmap_atomic_prot. - * - * @addr: The virtual address from the map. - * @prot: The page protection. - */ -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot) -{ - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) - kunmap_atomic(addr); - else - __ttm_kunmap_atomic(addr); -} -EXPORT_SYMBOL(ttm_kunmap_atomic_prot); - static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, unsigned long page, pgprot_t prot) @@ -316,13 +268,13 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, return -ENOMEM; src = (void *)((unsigned long)src + (page << PAGE_SHIFT)); - dst = ttm_kmap_atomic_prot(d, prot); + dst = kmap_atomic_prot(d, prot); if (!dst) return -ENOMEM; memcpy_fromio(dst, src, PAGE_SIZE); - ttm_kunmap_atomic_prot(dst, prot); + kunmap_atomic(dst); return 0; } @@ -338,13 +290,13 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, return -ENOMEM; dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT)); - src = ttm_kmap_atomic_prot(s, prot); + src = kmap_atomic_prot(s, prot); if (!src) return -ENOMEM; memcpy_toio(dst, src, PAGE_SIZE); - ttm_kunmap_atomic_prot(src, prot); + kunmap_atomic(src); return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c index bb46ca0c458f..94d456a1d1a9 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c @@ -374,12 +374,12 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, copy_size = min_t(u32, copy_size, PAGE_SIZE - src_page_offset); if (unmap_src) { - ttm_kunmap_atomic_prot(d->src_addr, d->src_prot); + kunmap_atomic(d->src_addr); d->src_addr = NULL; } if (unmap_dst) { - ttm_kunmap_atomic_prot(d->dst_addr, d->dst_prot); + kunmap_atomic(d->dst_addr); d->dst_addr = NULL; } @@ -388,8 +388,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, return -EINVAL; d->dst_addr = - ttm_kmap_atomic_prot(d->dst_pages[dst_page], - d->dst_prot); + kmap_atomic_prot(d->dst_pages[dst_page], + d->dst_prot); if (!d->dst_addr) return -ENOMEM; @@ -401,8 +401,8 @@ static int vmw_bo_cpu_blit_line(struct vmw_bo_blit_line_data *d, return -EINVAL; d->src_addr = - ttm_kmap_atomic_prot(d->src_pages[src_page], - d->src_prot); + kmap_atomic_prot(d->src_pages[src_page], + d->src_prot); if (!d->src_addr) return -ENOMEM; @@ -499,9 +499,9 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst, } out: if (d.src_addr) - ttm_kunmap_atomic_prot(d.src_addr, d.src_prot); + kunmap_atomic(d.src_addr); if (d.dst_addr) - ttm_kunmap_atomic_prot(d.dst_addr, d.dst_prot); + kunmap_atomic(d.dst_addr); return ret; } diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 0a9d042e075a..de1ccdcd5703 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -668,10 +668,6 @@ int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo); int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, struct ttm_bo_device *bdev); -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot); - -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot); - /** * ttm_bo_io *