[PATCH] MIPS/OCTEON: Override default address space layout.

[PATCH] MIPS/OCTEON: Override default address space layout.

[David Daney]

From: David Daney <david.daney@cavium.com>

OCTEON II cannot execute code in the default CAC_BASE space, so we
supply a value (0x8000000000000000) that does work.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/mips/include/asm/mach-cavium-octeon/spaces.h | 24 +++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/spaces.h

diff --git a/arch/mips/include/asm/mach-cavium-octeon/spaces.h b/arch/mips/include/asm/mach-cavium-octeon/spaces.h
new file mode 100644
index 0000000..daa91ac
--- /dev/null
+++ b/arch/mips/include/asm/mach-cavium-octeon/spaces.h
@@ -0,0 +1,24 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 Cavium, Inc.
+ */
+#ifndef _ASM_MACH_CAVIUM_OCTEON_SPACES_H
+#define _ASM_MACH_CAVIUM_OCTEON_SPACES_H
+
+#include <linux/const.h>
+
+#ifdef CONFIG_64BIT
+/* They are all the same and some OCTEON II cores cannot handle 0xa8.. */
+#define CAC_BASE		_AC(0x8000000000000000, UL)
+#define UNCAC_BASE		_AC(0x8000000000000000, UL)
+#define IO_BASE			_AC(0x8000000000000000, UL)
+
+
+#endif /* CONFIG_64BIT */
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* _ASM_MACH_CAVIUM_OCTEON_SPACES_H */
-- 
1.7.11.7

Re: [PATCH] MIPS/OCTEON: Override default address space layout.

[Ralf Baechle]

On Thu, Jun 13, 2013 at 02:10:47PM -0700, David Daney wrote:

> From: David Daney <david.daney@cavium.com>
> 
> OCTEON II cannot execute code in the default CAC_BASE space, so we
> supply a value (0x8000000000000000) that does work.
> 
> Signed-off-by: David Daney <david.daney@cavium.com>

Thanks, applied.

I assume this also should be applied to all -stable branches?

  Ralf

Re: [PATCH] MIPS/OCTEON: Override default address space layout.

[David Daney]

On 06/14/2013 01:41 AM, Ralf Baechle wrote:
> On Thu, Jun 13, 2013 at 02:10:47PM -0700, David Daney wrote:
>
>> From: David Daney <david.daney@cavium.com>
>>
>> OCTEON II cannot execute code in the default CAC_BASE space, so we
>> supply a value (0x8000000000000000) that does work.
>>
>> Signed-off-by: David Daney <david.daney@cavium.com>
>
> Thanks, applied.
>
> I assume this also should be applied to all -stable branches?
>

It is really only needed in conjunction with kexec, and that is somewhat 
broken at the moment

David.

Re: [PATCH] MIPS/OCTEON: Override default address space layout.

[David Daney]

On 06/14/2013 01:41 AM, Ralf Baechle wrote:
> On Thu, Jun 13, 2013 at 02:10:47PM -0700, David Daney wrote:
>
>> From: David Daney <david.daney@cavium.com>
>>
>> OCTEON II cannot execute code in the default CAC_BASE space, so we
>> supply a value (0x8000000000000000) that does work.
>>
>> Signed-off-by: David Daney <david.daney@cavium.com>
>
> Thanks, applied.
>
> I assume this also should be applied to all -stable branches?
>

It is really only needed in conjunction with kexec, and that is somewhat 
broken at the moment

David.