| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1364184674-13798-2-git-send-email-iamjoonsoo.kim@lge.com>
Date: Mon, 25 Mar 2013 13:11:09 +0900
From: Joonsoo Kim <iamjoonsoo.kim@....com>
To: Russell King <linux@....linux.org.uk>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Nicolas Pitre <nico@...aro.org>,
Will Deacon <will.deacon@....com>,
Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: [RFC PATCH 1/6] ARM, TCM: initialize TCM in paging_init(), instead of setup_arch()
tcm_init() call iotable_init() and it use early_alloc variants which
do memblock allocation. Directly using memblock allocation after
initializing bootmem should not permitted, because bootmem can't know
where are additinally reserved.
So move tcm_init() to a safe place before initalizing bootmem.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 3f6cbb2..b3990a3 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -56,7 +56,6 @@
#include <asm/virt.h>
#include "atags.h"
-#include "tcm.h"
#if defined(CONFIG_FPE_NWFPE) || defined(CONFIG_FPE_FASTFPE)
@@ -778,8 +777,6 @@ void __init setup_arch(char **cmdline_p)
reserve_crashkernel();
- tcm_init();
-
#ifdef CONFIG_MULTI_IRQ_HANDLER
handle_arch_irq = mdesc->handle_irq;
#endif
diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c
index 30ae6bb..f50f19e 100644
--- a/arch/arm/kernel/tcm.c
+++ b/arch/arm/kernel/tcm.c
@@ -17,7 +17,6 @@
#include <asm/mach/map.h>
#include <asm/memory.h>
#include <asm/system_info.h>
-#include "tcm.h"
static struct gen_pool *tcm_pool;
static bool dtcm_present;
diff --git a/arch/arm/kernel/tcm.h b/arch/arm/kernel/tcm.h
deleted file mode 100644
index 8015ad4..0000000
--- a/arch/arm/kernel/tcm.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (C) 2008-2009 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- * TCM memory handling for ARM systems
- *
- * Author: Linus Walleij <linus.walleij@...ricsson.com>
- * Author: Rickard Andersson <rickard.andersson@...ricsson.com>
- */
-
-#ifdef CONFIG_HAVE_TCM
-void __init tcm_init(void);
-#else
-/* No TCM support, just blank inlines to be optimized out */
-inline void tcm_init(void)
-{
-}
-#endif
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index e95a996..a7f127d 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -34,6 +34,7 @@
#include <asm/mach/pci.h>
#include "mm.h"
+#include "tcm.h"
/*
* empty_zero_page is a special page that is used for
@@ -1256,6 +1257,7 @@ void __init paging_init(struct machine_desc *mdesc)
dma_contiguous_remap();
devicemaps_init(mdesc);
kmap_init();
+ tcm_init();
top_pmd = pmd_off_k(0xffff0000);
diff --git a/arch/arm/mm/tcm.h b/arch/arm/mm/tcm.h
new file mode 100644
index 0000000..8015ad4
--- /dev/null
+++ b/arch/arm/mm/tcm.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2008-2009 ST-Ericsson AB
+ * License terms: GNU General Public License (GPL) version 2
+ * TCM memory handling for ARM systems
+ *
+ * Author: Linus Walleij <linus.walleij@...ricsson.com>
+ * Author: Rickard Andersson <rickard.andersson@...ricsson.com>
+ */
+
+#ifdef CONFIG_HAVE_TCM
+void __init tcm_init(void);
+#else
+/* No TCM support, just blank inlines to be optimized out */
+inline void tcm_init(void)
+{
+}
+#endif
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists