* [PATCH/RFC] io_remap_pfn_range: convert io_remap_page_range callers
@ 2005-03-17 4:47 Randy.Dunlap
0 siblings, 0 replies; only message in thread
From: Randy.Dunlap @ 2005-03-17 4:47 UTC (permalink / raw)
To: linux-mm; +Cc: lkml
Follow-up to
http://marc.theaimsgroup.com/?l=linux-mm&m=111049473410099&w=2
(which has a minor correction, full patch available at:
http://developer.osdl.org/rddunlap/patches/ioremap_pfn_v6.patch)
Built on 9 arches with OSDL PLM.
io_remap_pfn_range() phase 2:
convert all callers of io_remap_page_range() to io_remap_pfn_range();
add io_remap_page_range() to feature-removal-schedule.txt;
Documentation/feature-removal-schedule.txt | 9 +++++++++
arch/sh/kernel/cpu/sh4/sq.c | 2 +-
drivers/video/acornfb.c | 2 +-
drivers/video/au1100fb.c | 2 +-
drivers/video/controlfb.c | 2 +-
drivers/video/sa1100fb.c | 2 +-
sound/core/pcm_native.c | 4 ++--
7 files changed, 16 insertions(+), 7 deletions(-)
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/arch/sh/kernel/cpu/sh4/sq.c linux-2611-bk10-remap2/arch/sh/kernel/cpu/sh4/sq.c
--- linux-2611-bk10-remap1/arch/sh/kernel/cpu/sh4/sq.c 2005-03-01 23:38:07.000000000 -0800
+++ linux-2611-bk10-remap2/arch/sh/kernel/cpu/sh4/sq.c 2005-03-16 09:46:10.000000000 -0800
@@ -379,7 +379,7 @@ static int sq_mmap(struct file *file, st
map = __sq_alloc_mapping(vma->vm_start, offset, size, "Userspace");
- if (io_remap_page_range(vma, map->sq_addr, map->addr,
+ if (io_remap_pfn_range(vma, map->sq_addr, map->addr >> PAGE_SHIFT,
size, vma->vm_page_prot))
return -EAGAIN;
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/Documentation/feature-removal-schedule.txt linux-2611-bk10-remap2/Documentation/feature-removal-schedule.txt
--- linux-2611-bk10-remap1/Documentation/feature-removal-schedule.txt 2005-03-16 09:16:26.000000000 -0800
+++ linux-2611-bk10-remap2/Documentation/feature-removal-schedule.txt 2005-03-16 10:01:18.000000000 -0800
@@ -31,9 +31,18 @@ Why: /proc/sys/cpu/* has been deprecated
Both interfaces are superseded by the cpufreq interface in
/sys/devices/system/cpu/cpu%n/cpufreq/.
Who: Dominik Brodowski <linux@brodo.de>
+---------------------------
What: ACPI S4bios support
When: May 2005
Why: Noone uses it, and it probably does not work, anyway. swsusp is
faster, more reliable, and people are actually using it.
Who: Pavel Machek <pavel@suse.cz>
+---------------------------
+
+What: io_remap_page_range() (macro or function)
+When: September 2005
+Why: Replaced by io_remap_pfn_range() which allows more memory space
+ addressabilty (by using a pfn) and supports sparc & sparc64
+ iospace as part of the pfn.
+Who: Randy Dunlap <rddunlap@osdl.org>
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/drivers/video/acornfb.c linux-2611-bk10-remap2/drivers/video/acornfb.c
--- linux-2611-bk10-remap1/drivers/video/acornfb.c 2005-03-01 23:38:26.000000000 -0800
+++ linux-2611-bk10-remap2/drivers/video/acornfb.c 2005-03-16 09:38:24.000000000 -0800
@@ -909,7 +909,7 @@ acornfb_mmap(struct fb_info *info, struc
* some updates to the screen occasionally, but process switches
* should cause the caches and buffers to be flushed often enough.
*/
- if (io_remap_page_range(vma, vma->vm_start, off,
+ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/drivers/video/au1100fb.c linux-2611-bk10-remap2/drivers/video/au1100fb.c
--- linux-2611-bk10-remap1/drivers/video/au1100fb.c 2005-03-01 23:37:48.000000000 -0800
+++ linux-2611-bk10-remap2/drivers/video/au1100fb.c 2005-03-16 09:33:56.000000000 -0800
@@ -408,7 +408,7 @@ au1100fb_mmap(struct fb_info *_fb,
/* This is an IO map - tell maydump to skip this VMA */
vma->vm_flags |= VM_IO;
- if (io_remap_page_range(vma, vma->vm_start, off,
+ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) {
return -EAGAIN;
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/drivers/video/controlfb.c linux-2611-bk10-remap2/drivers/video/controlfb.c
--- linux-2611-bk10-remap1/drivers/video/controlfb.c 2005-03-01 23:37:50.000000000 -0800
+++ linux-2611-bk10-remap2/drivers/video/controlfb.c 2005-03-16 09:37:11.000000000 -0800
@@ -315,7 +315,7 @@ static int controlfb_mmap(struct fb_info
return -EINVAL;
off += start;
vma->vm_pgoff = off >> PAGE_SHIFT;
- if (io_remap_page_range(vma, vma->vm_start, off,
+ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
vma->vm_end - vma->vm_start, vma->vm_page_prot))
return -EAGAIN;
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/drivers/video/sa1100fb.c linux-2611-bk10-remap2/drivers/video/sa1100fb.c
--- linux-2611-bk10-remap1/drivers/video/sa1100fb.c 2005-03-01 23:37:50.000000000 -0800
+++ linux-2611-bk10-remap2/drivers/video/sa1100fb.c 2005-03-16 09:37:53.000000000 -0800
@@ -836,7 +836,7 @@ static int sa1100fb_mmap(struct fb_info
vma->vm_pgoff = off >> PAGE_SHIFT;
vma->vm_flags |= VM_IO;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- return io_remap_page_range(vma, vma->vm_start, off,
+ return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot);
}
diff -Naurp -X /home/rddunlap/doc/dontdiff-osdl linux-2611-bk10-remap1/sound/core/pcm_native.c linux-2611-bk10-remap2/sound/core/pcm_native.c
--- linux-2611-bk10-remap1/sound/core/pcm_native.c 2005-03-16 09:17:08.000000000 -0800
+++ linux-2611-bk10-remap2/sound/core/pcm_native.c 2005-03-16 09:39:41.000000000 -0800
@@ -3097,8 +3097,8 @@ int snd_pcm_lib_mmap_iomem(snd_pcm_subst
area->vm_flags |= VM_IO;
size = area->vm_end - area->vm_start;
offset = area->vm_pgoff << PAGE_SHIFT;
- if (io_remap_page_range(area, area->vm_start,
- substream->runtime->dma_addr + offset,
+ if (io_remap_pfn_range(area, area->vm_start,
+ (substream->runtime->dma_addr + offset) >> PAGE_SHIFT,
size, area->vm_page_prot))
return -EAGAIN;
atomic_inc(&substream->runtime->mmap_count);
---
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