From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 5F7E86E0002 for ; Mon, 10 May 2010 05:46:54 -0400 (EDT) From: Benjamin Herrenschmidt Subject: [PATCH 25/25] lmb: Add debugfs files to dump the arrays content Date: Mon, 10 May 2010 19:46:05 +1000 Message-Id: <1273484765-29055-25-git-send-email-benh@kernel.crashing.org> In-Reply-To: <1273484765-29055-24-git-send-email-benh@kernel.crashing.org> References: <1273484765-29055-1-git-send-email-benh@kernel.crashing.org> <1273484765-29055-2-git-send-email-benh@kernel.crashing.org> <1273484765-29055-3-git-send-email-benh@kernel.crashing.org> <1273484765-29055-4-git-send-email-benh@kernel.crashing.org> <1273484765-29055-5-git-send-email-benh@kernel.crashing.org> <1273484765-29055-6-git-send-email-benh@kernel.crashing.org> <1273484765-29055-7-git-send-email-benh@kernel.crashing.org> <1273484765-29055-8-git-send-email-benh@kernel.crashing.org> <1273484765-29055-9-git-send-email-benh@kernel.crashing.org> <1273484765-29055-10-git-send-email-benh@kernel.crashing.org> <1273484765-29055-11-git-send-email-benh@kernel.crashing.org> <1273484765-29055-12-git-send-email-benh@kernel.crashing.org> <1273484765-29055-13-git-send-email-benh@kernel.crashing.org> <1273484765-29055-14-git-send-email-benh@kernel.crashing.org> <1273484765-29055-15-git-send-email-benh@kernel.crashing.org> <1273484765-29055-16-git-send-email-benh@kernel.crashing.org> <1273484765-29055-17-git-send-email-benh@kernel.crashing.org> <1273484765-29055-18-git-send-email-benh@kernel.crashing.org> <1273484765-29055-19-git-send-email-benh@kernel.crashing.org> <1273484765-29055-20-git-send-email-benh@kernel.crashing.org> <1273484765-29055-21-git-send-email-benh@kernel.crashing.org> <1273484765-29055-22-git-send-email-benh@kernel.crashing.org> <1273484765-29055-23-git-send-email-benh@kernel.crashing.org> <1273484765-29055-24-git-send-email-benh@kernel.crashing.org> Sender: owner-linux-mm@kvack.org To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@elte.hu, davem@davemloft.net, lethal@linux-sh.org, Benjamin Herrenschmidt List-ID: Signed-off-by: Benjamin Herrenschmidt --- lib/lmb.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 51 insertions(+), 0 deletions(-) diff --git a/lib/lmb.c b/lib/lmb.c index 6c38c87..1e11891 100644 --- a/lib/lmb.c +++ b/lib/lmb.c @@ -16,6 +16,8 @@ #include #include #include +#include +#include #include struct lmb lmb; @@ -696,3 +698,52 @@ static int __init early_lmb(char *p) } early_param("lmb", early_lmb); +#ifdef CONFIG_DEBUG_FS + +static int lmb_debug_show(struct seq_file *m, void *private) +{ + struct lmb_type *type = m->private; + struct lmb_region *reg; + int i; + + for (i = 0; i < type->cnt; i++) { + reg = &type->regions[i]; + seq_printf(m, "%4d: ", i); + if (sizeof(phys_addr_t) == 4) + seq_printf(m, "0x%08lx..0x%08lx\n", + (unsigned long)reg->base, + (unsigned long)(reg->base + reg->size - 1)); + else + seq_printf(m, "0x%016llx..0x%016llx\n", + (unsigned long long)reg->base, + (unsigned long long)(reg->base + reg->size - 1)); + + } + return 0; +} + +static int lmb_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, lmb_debug_show, inode->i_private); +} + +static const struct file_operations lmb_debug_fops = { + .open = lmb_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init lmb_init_debugfs(void) +{ + struct dentry *root = debugfs_create_dir("lmb", NULL); + if (!root) + return -ENXIO; + debugfs_create_file("memory", S_IRUGO, root, &lmb.memory, &lmb_debug_fops); + debugfs_create_file("reserved", S_IRUGO, root, &lmb.reserved, &lmb_debug_fops); + + return 0; +} +__initcall(lmb_init_debugfs); + +#endif /* CONFIG_DEBUG_FS */ -- 1.6.3.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org