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Diffstat (limited to 'recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch')
-rw-r--r--recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch170
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
+