From patchwork Wed Mar 9 09:17:33 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Cohen X-Patchwork-Id: 620881 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p299Hxue005532 for ; Wed, 9 Mar 2011 09:17:59 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757137Ab1CIJRz (ORCPT ); Wed, 9 Mar 2011 04:17:55 -0500 Received: from mail-ey0-f174.google.com ([209.85.215.174]:62387 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756993Ab1CIJRr (ORCPT ); Wed, 9 Mar 2011 04:17:47 -0500 Received: by mail-ey0-f174.google.com with SMTP id 24so80674eyx.19 for ; Wed, 09 Mar 2011 01:17:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=FNzU92Q+TV28dV+UJC3e8b4K5Zy4ZNZM+27V8E3lEfg=; b=VwmyCQ7aRMJAV8QtX0p1BVfhKUedWmtgoWt+zuNG6tH8uhQbDqX2Oi/VaGe+4sNkfl oidvMHj1KtSQgZRKfy6my9UV9DsMZfnUJa8KqkQ9QRmoZZ4pJ/yw01JPZpxTjo01pbwu Xmi6PN92TKEsGpkZROGevBZebsi8squkpXmfk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=nYy/bAupnfAMWdcv35yD9JSir2uj2/Y7Pgd+xMCQKPIgFjO25PoaU93ijGWqTHlx5I U7/DN2Di1+3e+2H37Uz0DYZYj0HIIQ9coO+JOPgRHNSa7Ub4cgGYL+jgeayngdRr4yBk xXbUnBSf0U0PBzXxUzfUMRh7U8UgrJK76Rop8= Received: by 10.213.14.20 with SMTP id e20mr1386207eba.28.1299662265951; Wed, 09 Mar 2011 01:17:45 -0800 (PST) Received: from localhost.localdomain (a91-152-69-14.elisa-laajakaista.fi [91.152.69.14]) by mx.google.com with ESMTPS id t50sm1352630eeh.0.2011.03.09.01.17.44 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 09 Mar 2011 01:17:44 -0800 (PST) From: David Cohen To: Hiroshi.DOYU@nokia.com Cc: linux-omap@vger.kernel.org, linux-media@vger.kernel.org, laurent.pinchart@ideasonboard.com, sakari.ailus@maxwell.research.nokia.com, fernando.lugo@ti.com, David Cohen Subject: [PATCH v3 2/2] omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag Date: Wed, 9 Mar 2011 11:17:33 +0200 Message-Id: <1299662253-29817-3-git-send-email-dacohen@gmail.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1299662253-29817-1-git-send-email-dacohen@gmail.com> References: <1299662253-29817-1-git-send-email-dacohen@gmail.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 09 Mar 2011 09:18:00 +0000 (UTC) diff --git a/arch/arm/plat-omap/include/plat/iovmm.h b/arch/arm/plat-omap/include/plat/iovmm.h index bdc7ce5..32a2f6c 100644 --- a/arch/arm/plat-omap/include/plat/iovmm.h +++ b/arch/arm/plat-omap/include/plat/iovmm.h @@ -71,8 +71,6 @@ struct iovm_struct { #define IOVMF_LINEAR_MASK (3 << (2 + IOVMF_SW_SHIFT)) #define IOVMF_DA_FIXED (1 << (4 + IOVMF_SW_SHIFT)) -#define IOVMF_DA_ANON (2 << (4 + IOVMF_SW_SHIFT)) -#define IOVMF_DA_MASK (3 << (4 + IOVMF_SW_SHIFT)) extern struct iovm_struct *find_iovm_area(struct iommu *obj, u32 da); diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c index ea7eab9..51ef43e 100644 --- a/arch/arm/plat-omap/iovmm.c +++ b/arch/arm/plat-omap/iovmm.c @@ -279,7 +279,7 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, start = da; alignment = PAGE_SIZE; - if (flags & IOVMF_DA_ANON) { + if (~flags & IOVMF_DA_FIXED) { /* Don't map address 0 */ start = obj->da_start ? obj->da_start : alignment; @@ -304,7 +304,7 @@ static struct iovm_struct *alloc_iovm_area(struct iommu *obj, u32 da, if (tmp->da_start > start && (tmp->da_start - start) >= bytes) goto found; - if (tmp->da_end >= start && flags & IOVMF_DA_ANON) + if (tmp->da_end >= start && ~flags & IOVMF_DA_FIXED) start = roundup(tmp->da_end + 1, alignment); prev_end = tmp->da_end; @@ -651,7 +651,6 @@ u32 iommu_vmap(struct iommu *obj, u32 da, const struct sg_table *sgt, flags &= IOVMF_HW_MASK; flags |= IOVMF_DISCONT; flags |= IOVMF_MMIO; - flags |= (da ? IOVMF_DA_FIXED : IOVMF_DA_ANON); da = __iommu_vmap(obj, da, sgt, va, bytes, flags); if (IS_ERR_VALUE(da)) @@ -691,7 +690,7 @@ EXPORT_SYMBOL_GPL(iommu_vunmap); * @flags: iovma and page property * * Allocate @bytes linearly and creates 1-n-1 mapping and returns - * @da again, which might be adjusted if 'IOVMF_DA_ANON' is set. + * @da again, which might be adjusted if 'IOVMF_DA_FIXED' is not set. */ u32 iommu_vmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags) { @@ -710,7 +709,6 @@ u32 iommu_vmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags) flags &= IOVMF_HW_MASK; flags |= IOVMF_DISCONT; flags |= IOVMF_ALLOC; - flags |= (da ? IOVMF_DA_FIXED : IOVMF_DA_ANON); sgt = sgtable_alloc(bytes, flags, da, 0); if (IS_ERR(sgt)) { @@ -781,7 +779,7 @@ static u32 __iommu_kmap(struct iommu *obj, u32 da, u32 pa, void *va, * @flags: iovma and page property * * Creates 1-1-1 mapping and returns @da again, which can be - * adjusted if 'IOVMF_DA_ANON' is set. + * adjusted if 'IOVMF_DA_FIXED' is not set. */ u32 iommu_kmap(struct iommu *obj, u32 da, u32 pa, size_t bytes, u32 flags) @@ -800,7 +798,6 @@ u32 iommu_kmap(struct iommu *obj, u32 da, u32 pa, size_t bytes, flags &= IOVMF_HW_MASK; flags |= IOVMF_LINEAR; flags |= IOVMF_MMIO; - flags |= (da ? IOVMF_DA_FIXED : IOVMF_DA_ANON); da = __iommu_kmap(obj, da, pa, va, bytes, flags); if (IS_ERR_VALUE(da)) @@ -839,7 +836,7 @@ EXPORT_SYMBOL_GPL(iommu_kunmap); * @flags: iovma and page property * * Allocate @bytes linearly and creates 1-1-1 mapping and returns - * @da again, which might be adjusted if 'IOVMF_DA_ANON' is set. + * @da again, which might be adjusted if 'IOVMF_DA_FIXED' is not set. */ u32 iommu_kmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags) { @@ -859,7 +856,6 @@ u32 iommu_kmalloc(struct iommu *obj, u32 da, size_t bytes, u32 flags) flags &= IOVMF_HW_MASK; flags |= IOVMF_LINEAR; flags |= IOVMF_ALLOC; - flags |= (da ? IOVMF_DA_FIXED : IOVMF_DA_ANON); da = __iommu_kmap(obj, da, pa, va, bytes, flags); if (IS_ERR_VALUE(da))