[PATCH][UPDATE] powerpc: Fix mem= cmdline handling on arch/powerpc for !MULTIPLATFORM
From: Kumar Gala <hidden>
Date: 2006-02-24 23:24:12
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
mem= command line option was being ignored in arch/powerpc if we were not a CONFIG_MULTIPLATFORM (which is handled via prom_init stub). The initial command line extraction and parsing needed to be moved earlier in the boot process and have code to actual parse mem= and do something about it. Also, fixed a compile warning in the file. Signed-off-by: Kumar Gala <redacted> --- commit a49869ffbf01f3998523357c85f7b55a6d064cda tree efd39700c07ac02cb6216ebf8d6d0d2adf7be36a parent 820ac48b82821c6d38747ea49f98aeca05ca2e2b author Kumar Gala [off-list ref] Fri, 24 Feb 2006 17:08:54 -0600 committer Kumar Gala [off-list ref] Fri, 24 Feb 2006 17:08:54 -0600 arch/powerpc/kernel/prom.c | 42 ++++++++++++++++++++++++++---------------- 1 files changed, 26 insertions(+), 16 deletions(-)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 294832a..670654b 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c@@ -816,8 +816,6 @@ void __init unflatten_device_tree(void) { unsigned long start, mem, size; struct device_node **allnextp = &allnodes; - char *p = NULL; - int l = 0; DBG(" -> unflatten_device_tree()\n");
@@ -857,19 +855,6 @@ void __init unflatten_device_tree(void) if (of_chosen == NULL) of_chosen = of_find_node_by_path("/chosen@0"); - /* Retreive command line */ - if (of_chosen != NULL) { - p = (char *)get_property(of_chosen, "bootargs", &l); - if (p != NULL && l > 0) - strlcpy(cmd_line, p, min(l, COMMAND_LINE_SIZE)); - } -#ifdef CONFIG_CMDLINE - if (l == 0 || (l == 1 && (*p) == 0)) - strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); -#endif /* CONFIG_CMDLINE */ - - DBG("Command line is: %s\n", cmd_line); - DBG(" <- unflatten_device_tree()\n"); }
@@ -940,6 +925,8 @@ static int __init early_init_dt_scan_cho { u32 *prop; unsigned long *lprop; + unsigned long l; + char *p; DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
@@ -1004,6 +991,29 @@ static int __init early_init_dt_scan_cho crashk_res.end = crashk_res.start + *lprop - 1; #endif + /* Retreive command line */ + p = of_get_flat_dt_prop(node, "bootargs", &l); + if (p != NULL && l > 0) + strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE)); + +#ifdef CONFIG_CMDLINE + if (l == 0 || (l == 1 && (*p) == 0)) + strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); +#endif /* CONFIG_CMDLINE */ + + DBG("Command line is: %s\n", cmd_line); + + if (strstr(cmd_line, "mem=")) { + char *p, *q; + + for (q = cmd_line; (p = strstr(q, "mem=")) != 0; ) { + q = p + 4; + if (p > cmd_line && p[-1] != ' ') + continue; + memory_limit = memparse(q, &q); + } + } + /* break now */ return 1; }
@@ -1124,7 +1134,7 @@ static void __init early_reserve_mem(voi size_32 = *(reserve_map_32++); if (size_32 == 0) break; - DBG("reserving: %lx -> %lx\n", base_32, size_32); + DBG("reserving: %x -> %x\n", base_32, size_32); lmb_reserve(base_32, size_32); } return;