diff options
Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch')
| -rw-r--r-- | meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/dss2/0051-DSS2-VRAM-use-debugfs-not-procfs.patch new file mode 100644 index 0000000000..93ff3205d3 --- /dev/null +++ b/meta/recipes-kernel/linux/linux-omap-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] 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, ®ion_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 = ®ion_list; +- +- mutex_lock(®ion_mutex); +- +- do { +- l = l->next; +- if (l == ®ion_list) +- return NULL; +- } while (p--); +- +- return l; +-} +- +-static void r_stop(struct seq_file *m, void *v) +-{ +- mutex_unlock(®ion_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(®ion_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, ®ion_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(®ion_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; +-- +1.5.6.5 + |