From: afzal.mohd.ma@gmail.com (afzal mohammed)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH WIP 3/4] ARM: mm: nommu: display dynamic exception base
Date: Sat, 7 Jan 2017 22:52:00 +0530 [thread overview]
Message-ID: <20170107172200.6397-1-afzal.mohd.ma@gmail.com> (raw)
In-Reply-To: <20170107171339.GA5044@afzalpc>
Display dynamically estimated nommu exception base.
TODO: Dynamically update MMU case too.
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com>
---
arch/arm/mm/init.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581aeb871..1777ee23a6a2 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -39,6 +39,10 @@
#include "mm.h"
+#ifndef CONFIG_MMU
+extern unsigned long vectors_base;
+#endif
+
#ifdef CONFIG_CPU_CP15_MMU
unsigned long __init __clear_cr(unsigned long mask)
{
@@ -521,8 +525,13 @@ void __init mem_init(void)
" .data : 0x%p" " - 0x%p" " (%4td kB)\n"
" .bss : 0x%p" " - 0x%p" " (%4td kB)\n",
+#ifdef CONFIG_MMU
MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) +
(PAGE_SIZE)),
+#else
+ MLK_ROUNDUP(vectors_base, vectors_base + PAGE_SIZE),
+#endif
+
#ifdef CONFIG_HAVE_TCM
MLK(DTCM_OFFSET, (unsigned long) dtcm_end),
MLK(ITCM_OFFSET, (unsigned long) itcm_end),
--
2.11.0
next prev parent reply other threads:[~2017-01-07 17:22 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-11 13:10 [PATCH 0/2] ARM: v7-A !MMU fixes for fun (&fame) Afzal Mohammed
2016-12-11 13:11 ` [PATCH 1/2] ARM: nommu: allow enabling REMAP_VECTORS_TO_RAM Afzal Mohammed
2016-12-13 9:17 ` Vladimir Murzin
2016-12-11 13:12 ` [PATCH RFC 2/2] ARM: nommu: remap exception base address to RAM Afzal Mohammed
2016-12-11 14:42 ` Afzal Mohammed
2016-12-13 9:38 ` Vladimir Murzin
2016-12-13 18:44 ` Afzal Mohammed
2016-12-13 10:02 ` Russell King - ARM Linux
2016-12-13 18:35 ` Afzal Mohammed
2017-01-07 17:13 ` Afzal Mohammed
2017-01-07 17:20 ` [PATCH WIP 1/4] ARM: nommu: dynamic exception base address setting afzal mohammed
2017-01-07 17:21 ` [PATCH WIP 2/4] ARM: nommu: remove Hivecs configuration is asm afzal mohammed
2017-01-07 17:22 ` afzal mohammed [this message]
2017-01-07 17:22 ` [PATCH WIP 4/4] ARM: remove compile time vector base for CP15 case afzal mohammed
2017-01-07 17:38 ` Russell King - ARM Linux
2017-01-07 18:02 ` Afzal Mohammed
2017-01-07 18:07 ` Afzal Mohammed
2017-01-07 18:24 ` Russell King - ARM Linux
2017-01-08 9:58 ` Afzal Mohammed
2017-01-15 11:47 ` [PATCH RFC 2/2] ARM: nommu: remap exception base address to RAM Afzal Mohammed
2017-01-16 9:53 ` Vladimir Murzin
2017-01-16 12:34 ` Afzal Mohammed
2016-12-12 18:44 ` [PATCH 0/2] ARM: v7-A !MMU fixes for fun (&fame) Afzal Mohammed
2016-12-12 20:42 ` Peter Korsgaard
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