From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: xen-devel@lists.xensource.com
Cc: konrad.wilk@oracle.com, Ian.Campbell@citrix.com,
david.vrabel@citrix.com, linux-kernel@vger.kernel.org,
Stefano.Stabellini@eu.citrix.com,
linux-arm-kernel@lists.infradead.org,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: [PATCH v7 2/8] xen/arm: remove outer_*_range call
Date: Mon, 27 Oct 2014 15:09:22 +0000 [thread overview]
Message-ID: <1414422568-19103-2-git-send-email-stefano.stabellini@eu.citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1410261621200.22875@kaball.uk.xensource.com>
Dom0 is not actually capable of issuing outer_inv_range or
outer_clean_range calls.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
arch/arm/xen/mm32.c | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/arch/arm/xen/mm32.c b/arch/arm/xen/mm32.c
index a5a93fc..6153d61 100644
--- a/arch/arm/xen/mm32.c
+++ b/arch/arm/xen/mm32.c
@@ -61,9 +61,6 @@ static void __xen_dma_page_dev_to_cpu(struct device *hwdev, dma_addr_t handle,
/* Cannot use __dma_page_dev_to_cpu because we don't have a
* struct page for handle */
- if (dir != DMA_TO_DEVICE)
- outer_inv_range(handle, handle + size);
-
dma_cache_maint(handle & PAGE_MASK, handle & ~PAGE_MASK, size, dir, dmac_unmap_area);
}
@@ -72,12 +69,6 @@ static void __xen_dma_page_cpu_to_dev(struct device *hwdev, dma_addr_t handle,
{
dma_cache_maint(handle & PAGE_MASK, handle & ~PAGE_MASK, size, dir, dmac_map_area);
-
- if (dir == DMA_FROM_DEVICE) {
- outer_inv_range(handle, handle + size);
- } else {
- outer_clean_range(handle, handle + size);
- }
}
void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
--
1.7.10.4
next prev parent reply other threads:[~2014-10-27 15:09 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-27 15:08 [PATCH v7 0/8] introduce GNTTABOP_cache_flush Stefano Stabellini
2014-10-27 15:09 ` [PATCH v7 1/8] xen/arm: remove handling of XENFEAT_grant_map_identity Stefano Stabellini
2014-10-27 15:09 ` Stefano Stabellini [this message]
2014-10-27 15:09 ` [PATCH v7 3/8] arm64: introduce is_device_dma_coherent Stefano Stabellini
2014-11-03 10:46 ` Stefano Stabellini
2014-11-03 10:57 ` Will Deacon
2014-11-03 11:10 ` Stefano Stabellini
2014-11-04 11:35 ` Grygorii Strashko
2014-11-04 15:00 ` Stefano Stabellini
2014-11-05 16:56 ` Catalin Marinas
2014-11-05 18:15 ` Stefano Stabellini
2014-11-06 10:33 ` Catalin Marinas
2014-11-06 12:22 ` Stefano Stabellini
2014-11-06 13:40 ` Catalin Marinas
2014-11-07 11:05 ` Catalin Marinas
2014-11-07 11:11 ` Catalin Marinas
2014-11-07 14:10 ` Stefano Stabellini
2014-11-07 14:10 ` Stefano Stabellini
2014-11-07 16:00 ` Catalin Marinas
2014-11-07 17:24 ` Stefano Stabellini
2014-11-07 17:35 ` Stefano Stabellini
2014-11-07 18:14 ` Catalin Marinas
2014-11-07 18:45 ` Stefano Stabellini
2014-11-10 10:16 ` Catalin Marinas
2014-11-10 12:35 ` Stefano Stabellini
2014-11-10 12:41 ` Stefano Stabellini
2014-10-27 15:09 ` [PATCH v7 4/8] arm: " Stefano Stabellini
2014-11-03 10:55 ` Stefano Stabellini
2014-10-27 15:09 ` [PATCH v7 5/8] xen/arm: use is_device_dma_coherent Stefano Stabellini
2014-10-27 15:09 ` [PATCH v7 6/8] xen/arm/arm64: merge xen/mm32.c into xen/mm.c Stefano Stabellini
2014-11-07 14:22 ` Catalin Marinas
2014-11-07 15:28 ` Stefano Stabellini
2014-11-07 16:03 ` Catalin Marinas
2014-11-07 16:46 ` Stefano Stabellini
2014-10-27 15:09 ` [PATCH v7 7/8] xen/arm/arm64: introduce xen_arch_need_swiotlb Stefano Stabellini
2014-11-03 10:45 ` Stefano Stabellini
2014-11-03 11:01 ` [Xen-devel] " David Vrabel
2014-11-03 16:04 ` Konrad Rzeszutek Wilk
2014-10-27 15:09 ` [PATCH v7 8/8] xen/arm: introduce GNTTABOP_cache_flush Stefano Stabellini
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