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From: Dengcheng Zhu <dzhu@wavecomp.com>
To: pburton@wavecomp.com, ralf@linux-mips.org
Cc: linux-mips@linux-mips.org, Dengcheng Zhu <dzhu@wavecomp.com>
Subject: [PATCH v2 5/6] MIPS: kexec: Relax memory restriction
Date: Wed, 11 Jul 2018 18:27:47 -0700	[thread overview]
Message-ID: <1531358868-10101-6-git-send-email-dzhu@wavecomp.com> (raw)
In-Reply-To: <1531358868-10101-1-git-send-email-dzhu@wavecomp.com>

We can rely on the system kernel and the dump capture kernel themselves in
memory usage.

Being restrictive with 512MB limit may cause kexec tool failure on some
platforms.

Signed-off-by: Dengcheng Zhu <dzhu@wavecomp.com>
---
 arch/mips/include/asm/kexec.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/mips/include/asm/kexec.h b/arch/mips/include/asm/kexec.h
index 9618e2e..97c548c 100644
--- a/arch/mips/include/asm/kexec.h
+++ b/arch/mips/include/asm/kexec.h
@@ -12,11 +12,11 @@
 #include <asm/stacktrace.h>
 
 /* Maximum physical address we can use pages from */
-#define KEXEC_SOURCE_MEMORY_LIMIT (0x20000000)
+#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
 /* Maximum address we can reach in physical address mode */
-#define KEXEC_DESTINATION_MEMORY_LIMIT (0x20000000)
+#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
  /* Maximum address we can use for the control code buffer */
-#define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000)
+#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
 /* Reserve 3*4096 bytes for board-specific info */
 #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096)
 
-- 
2.7.4

  parent reply	other threads:[~2018-07-12  1:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-12  1:27 [PATCH v2 0/6] MIPS: kexec/kdump: Fix smp reboot and other issues Dengcheng Zhu
2018-07-12  1:27 ` [PATCH v2 1/6] MIPS: Make play_dead() work for kexec Dengcheng Zhu
2018-08-30 23:20   ` Paul Burton
2018-08-31 16:58     ` Dengcheng Zhu
2018-07-12  1:27 ` [PATCH v2 2/6] MIPS: kexec: Let the new kernel handle all CPUs Dengcheng Zhu
2018-07-12  1:27 ` [PATCH v2 3/6] MIPS: kexec: Deprecate (relocated_)kexec_smp_wait Dengcheng Zhu
2018-07-12  1:27 ` [PATCH v2 4/6] MIPS: kexec: Do not flush system wide caches in machine_kexec() Dengcheng Zhu
2018-07-12  1:27 ` Dengcheng Zhu [this message]
2018-07-12  1:27 ` [PATCH v2 6/6] MIPS: kexec: Use prepare method from generic platform as default option Dengcheng Zhu

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