linux-kexecboot: add 2.6.29, currently only supports beagle

1 files changed, 170 insertions, 0 deletions

diff --git a/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch b/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch
new file mode 100644
index 0000000000..739d3cd1a6
--- /dev/null
+++ b/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch
@@ -0,0 +1,170 @@
+From b47aef28536f3c276d232c41cd3084c69389dca4 Mon Sep 17 00:00:00 2001
+From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+Date: Wed, 22 Apr 2009 14:11:52 +0300
+Subject: [PATCH 51/69] DSS2: VRAM: use debugfs, not procfs
+
+---
+ arch/arm/plat-omap/vram.c |  103 +++++++++++++++------------------------------
+ 1 files changed, 34 insertions(+), 69 deletions(-)
+
+diff --git a/arch/arm/plat-omap/vram.c b/arch/arm/plat-omap/vram.c
+index 90276ac..e847579 100644
+--- a/arch/arm/plat-omap/vram.c
++++ b/arch/arm/plat-omap/vram.c
+@@ -27,11 +27,11 @@
+ #include <linux/mm.h>
+ #include <linux/list.h>
+ #include <linux/dma-mapping.h>
+-#include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
+ #include <linux/bootmem.h>
+ #include <linux/omapfb.h>
+ #include <linux/completion.h>
++#include <linux/debugfs.h>
+ 
+ #include <asm/setup.h>
+ 
+@@ -398,88 +398,54 @@ int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr)
+ }
+ EXPORT_SYMBOL(omap_vram_alloc);
+ 
+-#ifdef CONFIG_PROC_FS
+-static void *r_next(struct seq_file *m, void *v, loff_t *pos)
+-{
+-	struct list_head *l = v;
+-
+-	(*pos)++;
+-
+-	if (list_is_last(l, &region_list))
+-		return NULL;
+-
+-	return l->next;
+-}
+-
+-static void *r_start(struct seq_file *m, loff_t *pos)
+-{
+-	loff_t p = *pos;
+-	struct list_head *l = &region_list;
+-
+-	mutex_lock(&region_mutex);
+-
+-	do {
+-		l = l->next;
+-		if (l == &region_list)
+-			return NULL;
+-	} while (p--);
+-
+-	return l;
+-}
+-
+-static void r_stop(struct seq_file *m, void *v)
+-{
+-	mutex_unlock(&region_mutex);
+-}
+-
+-static int r_show(struct seq_file *m, void *v)
++#if defined(CONFIG_DEBUG_FS)
++static int vram_debug_show(struct seq_file *s, void *unused)
+ {
+ 	struct vram_region *vr;
+ 	struct vram_alloc *va;
+ 	unsigned size;
+ 
+-	vr = list_entry(v, struct vram_region, list);
+-
+-	size = vr->pages << PAGE_SHIFT;
+-
+-	seq_printf(m, "%08lx-%08lx (%d bytes)\n",
+-			vr->paddr, vr->paddr + size - 1,
+-			size);
++	mutex_lock(&region_mutex);
+ 
+-	list_for_each_entry(va, &vr->alloc_list, list) {
+-		size = va->pages << PAGE_SHIFT;
+-		seq_printf(m, "    %08lx-%08lx (%d bytes)\n",
+-				va->paddr, va->paddr + size - 1,
++	list_for_each_entry(vr, &region_list, list) {
++		size = vr->pages << PAGE_SHIFT;
++		seq_printf(s, "%08lx-%08lx (%d bytes)\n",
++				vr->paddr, vr->paddr + size - 1,
+ 				size);
+-	}
+ 
++		list_for_each_entry(va, &vr->alloc_list, list) {
++			size = va->pages << PAGE_SHIFT;
++			seq_printf(s, "    %08lx-%08lx (%d bytes)\n",
++					va->paddr, va->paddr + size - 1,
++					size);
++		}
++	}
+ 
++	mutex_unlock(&region_mutex);
+ 
+ 	return 0;
+ }
+ 
+-static const struct seq_operations resource_op = {
+-	.start	= r_start,
+-	.next	= r_next,
+-	.stop	= r_stop,
+-	.show	= r_show,
+-};
+-
+-static int vram_open(struct inode *inode, struct file *file)
++static int vram_debug_open(struct inode *inode, struct file *file)
+ {
+-	return seq_open(file, &resource_op);
++	return single_open(file, vram_debug_show, inode->i_private);
+ }
+ 
+-static const struct file_operations proc_vram_operations = {
+-	.open		= vram_open,
+-	.read		= seq_read,
+-	.llseek		= seq_lseek,
+-	.release	= seq_release,
++static const struct file_operations vram_debug_fops = {
++	.open           = vram_debug_open,
++	.read           = seq_read,
++	.llseek         = seq_lseek,
++	.release        = single_release,
+ };
+ 
+-static int __init omap_vram_create_proc(void)
++static int __init omap_vram_create_debugfs(void)
+ {
+-	proc_create("omap-vram", 0, NULL, &proc_vram_operations);
++	struct dentry *d;
++
++	d = debugfs_create_file("vram", S_IRUGO, NULL,
++			NULL, &vram_debug_fops);
++	if (IS_ERR(d))
++		return PTR_ERR(d);
+ 
+ 	return 0;
+ }
+@@ -487,7 +453,7 @@ static int __init omap_vram_create_proc(void)
+ 
+ static __init int omap_vram_init(void)
+ {
+-	int i, r;
++	int i;
+ 
+ 	vram_initialized = 1;
+ 
+@@ -495,10 +461,9 @@ static __init int omap_vram_init(void)
+ 		omap_vram_add_region(postponed_regions[i].paddr,
+ 				postponed_regions[i].size);
+ 
+-#ifdef CONFIG_PROC_FS
+-	r = omap_vram_create_proc();
+-	if (r)
+-		return -ENOMEM;
++#ifdef CONFIG_DEBUG_FS
++	if (omap_vram_create_debugfs())
++		pr_err("VRAM: Failed to create debugfs file\n");
+ #endif
+ 
+ 	return 0;
+-- 
+1.6.2.4
+