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author | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-27 15:14:24 +0100 |
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committer | Richard Purdie <rpurdie@linux.intel.com> | 2010-08-27 15:29:45 +0100 |
commit | 29d6678fd546377459ef75cf54abeef5b969b5cf (patch) | |
tree | 8edd65790e37a00d01c3f203f773fe4b5012db18 /meta/recipes-kernel/linux/linux-omap-2.6.29/isp/omap3camera/0002-omap3isp-Add-ISP-MMU-wrapper.patch | |
parent | da49de6885ee1bc424e70bc02f21f6ab920efb55 (diff) | |
download | openembedded-core-contrib-29d6678fd546377459ef75cf54abeef5b969b5cf.tar.gz |
Major layout change to the packages directory
Having one monolithic packages directory makes it hard to find things
and is generally overwhelming. This commit splits it into several
logical sections roughly based on function, recipes.txt gives more
information about the classifications used.
The opportunity is also used to switch from "packages" to "recipes"
as used in OpenEmbedded as the term "packages" can be confusing to
people and has many different meanings.
Not all recipes have been classified yet, this is just a first pass
at separating things out. Some packages are moved to meta-extras as
they're no longer actively used or maintained.
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/isp/omap3camera/0002-omap3isp-Add-ISP-MMU-wrapper.patch')
-rw-r--r-- | meta/recipes-kernel/linux/linux-omap-2.6.29/isp/omap3camera/0002-omap3isp-Add-ISP-MMU-wrapper.patch | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/isp/omap3camera/0002-omap3isp-Add-ISP-MMU-wrapper.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/isp/omap3camera/0002-omap3isp-Add-ISP-MMU-wrapper.patch new file mode 100644 index 0000000000..cfca26723a --- /dev/null +++ b/meta/recipes-kernel/linux/linux-omap-2.6.29/isp/omap3camera/0002-omap3isp-Add-ISP-MMU-wrapper.patch @@ -0,0 +1,209 @@ +From 731527a7dc26533a878c7c5f36fc148fdcaa21b8 Mon Sep 17 00:00:00 2001 +From: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> +Date: Tue, 10 Mar 2009 10:49:02 +0200 +Subject: [PATCH] omap3isp: Add ISP MMU wrapper + +TODO: + +- The ISP driver should start using the IOMMU directly without this wrapper. + +Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> +--- + drivers/media/video/isp/ispmmu.c | 141 ++++++++++++++++++++++++++++++++++++++ + drivers/media/video/isp/ispmmu.h | 36 ++++++++++ + 2 files changed, 177 insertions(+), 0 deletions(-) + create mode 100644 drivers/media/video/isp/ispmmu.c + create mode 100644 drivers/media/video/isp/ispmmu.h + +diff --git a/drivers/media/video/isp/ispmmu.c b/drivers/media/video/isp/ispmmu.c +new file mode 100644 +index 0000000..f872c71 +--- /dev/null ++++ b/drivers/media/video/isp/ispmmu.c +@@ -0,0 +1,141 @@ ++/* ++ * omap iommu wrapper for TI's OMAP3430 Camera ISP ++ * ++ * Copyright (C) 2008--2009 Nokia. ++ * ++ * Contributors: ++ * Hiroshi Doyu <hiroshi.doyu@nokia.com> ++ * Sakari Ailus <sakari.ailus@nokia.com> ++ * ++ * This package is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ++ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ++ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ++ */ ++ ++#include <linux/module.h> ++ ++#include "ispmmu.h" ++#include "isp.h" ++ ++#include <mach/iommu.h> ++#include <mach/iovmm.h> ++ ++#define IOMMU_FLAG (IOVMF_ENDIAN_LITTLE | IOVMF_ELSZ_8) ++ ++static struct iommu *isp_iommu; ++ ++dma_addr_t ispmmu_vmalloc(size_t bytes) ++{ ++ return (dma_addr_t)iommu_vmalloc(isp_iommu, 0, bytes, IOMMU_FLAG); ++} ++ ++void ispmmu_vfree(const dma_addr_t da) ++{ ++ iommu_vfree(isp_iommu, (u32)da); ++} ++ ++dma_addr_t ispmmu_kmap(u32 pa, int size) ++{ ++ void *da; ++ ++ da = (void *)iommu_kmap(isp_iommu, 0, pa, size, IOMMU_FLAG); ++ if (IS_ERR(da)) ++ return PTR_ERR(da); ++ ++ return (dma_addr_t)da; ++} ++ ++void ispmmu_kunmap(dma_addr_t da) ++{ ++ iommu_kunmap(isp_iommu, (u32)da); ++} ++ ++dma_addr_t ispmmu_vmap(const struct scatterlist *sglist, ++ int sglen) ++{ ++ int err; ++ void *da; ++ struct sg_table *sgt; ++ unsigned int i; ++ struct scatterlist *sg, *src = (struct scatterlist *)sglist; ++ ++ /* ++ * convert isp sglist to iommu sgt ++ * FIXME: should be fixed in the upper layer? ++ */ ++ sgt = kmalloc(sizeof(*sgt), GFP_KERNEL); ++ if (!sgt) ++ return -ENOMEM; ++ err = sg_alloc_table(sgt, sglen, GFP_KERNEL); ++ if (err) ++ goto err_sg_alloc; ++ ++ for_each_sg(sgt->sgl, sg, sgt->nents, i) ++ sg_set_buf(sg, phys_to_virt(sg_dma_address(src + i)), ++ sg_dma_len(src + i)); ++ ++ da = (void *)iommu_vmap(isp_iommu, 0, sgt, IOMMU_FLAG); ++ if (IS_ERR(da)) ++ goto err_vmap; ++ ++ return (dma_addr_t)da; ++ ++err_vmap: ++ sg_free_table(sgt); ++err_sg_alloc: ++ kfree(sgt); ++ return -ENOMEM; ++} ++EXPORT_SYMBOL_GPL(ispmmu_vmap); ++ ++void ispmmu_vunmap(dma_addr_t da) ++{ ++ struct sg_table *sgt; ++ ++ sgt = iommu_vunmap(isp_iommu, (u32)da); ++ if (!sgt) ++ return; ++ sg_free_table(sgt); ++ kfree(sgt); ++} ++EXPORT_SYMBOL_GPL(ispmmu_vunmap); ++ ++void ispmmu_save_context(void) ++{ ++ if (isp_iommu) ++ iommu_save_ctx(isp_iommu); ++} ++ ++void ispmmu_restore_context(void) ++{ ++ if (isp_iommu) ++ iommu_restore_ctx(isp_iommu); ++} ++ ++int __init ispmmu_init(void) ++{ ++ int err = 0; ++ ++ isp_get(); ++ isp_iommu = iommu_get("isp"); ++ if (IS_ERR(isp_iommu)) { ++ err = PTR_ERR(isp_iommu); ++ isp_iommu = NULL; ++ } ++ isp_put(); ++ ++ return err; ++} ++ ++void ispmmu_cleanup(void) ++{ ++ isp_get(); ++ if (isp_iommu) ++ iommu_put(isp_iommu); ++ isp_put(); ++ isp_iommu = NULL; ++} +diff --git a/drivers/media/video/isp/ispmmu.h b/drivers/media/video/isp/ispmmu.h +new file mode 100644 +index 0000000..0bc5bcb +--- /dev/null ++++ b/drivers/media/video/isp/ispmmu.h +@@ -0,0 +1,36 @@ ++/* ++ * omap iommu wrapper for TI's OMAP3430 Camera ISP ++ * ++ * Copyright (C) 2008--2009 Nokia. ++ * ++ * Contributors: ++ * Hiroshi Doyu <hiroshi.doyu@nokia.com> ++ * Sakari Ailus <sakari.ailus@nokia.com> ++ * ++ * This package is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ++ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ++ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ++ */ ++ ++#ifndef OMAP_ISP_MMU_H ++#define OMAP_ISP_MMU_H ++ ++#include <linux/err.h> ++#include <linux/scatterlist.h> ++ ++dma_addr_t ispmmu_vmalloc(size_t bytes); ++void ispmmu_vfree(const dma_addr_t da); ++dma_addr_t ispmmu_kmap(u32 pa, int size); ++void ispmmu_kunmap(dma_addr_t da); ++dma_addr_t ispmmu_vmap(const struct scatterlist *sglist, int sglen); ++void ispmmu_vunmap(dma_addr_t da); ++void ispmmu_save_context(void); ++void ispmmu_restore_context(void); ++int ispmmu_init(void); ++void ispmmu_cleanup(void); ++ ++#endif /* OMAP_ISP_MMU_H */ +-- +1.5.6.5 + |