Patchwork [RFC,01/16] powerpc/booke: Set CPU_FTR_DEBUG_LVL_EXC on 32-bit

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Submitter Scott Wood
Date Dec. 21, 2011, 1:34 a.m.
Message ID <20111221013412.GA8378@schlenkerla.am.freescale.net>
Download mbox | patch
Permalink /patch/132549/
State New
Headers show

Comments

Scott Wood - Dec. 21, 2011, 1:34 a.m.
Currently 32-bit only cares about this for choice of exception
vector, which is done in core-specific code.  However, KVM will
want to distinguish as well.

Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/include/asm/cputable.h |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
Alexander Graf - Jan. 9, 2012, 3:21 p.m.
On 21.12.2011, at 02:34, Scott Wood wrote:

> Currently 32-bit only cares about this for choice of exception
> vector, which is done in core-specific code.  However, KVM will
> want to distinguish as well.
> 
> Signed-off-by: Scott Wood <scottwood@freescale.com>
> ---
> arch/powerpc/include/asm/cputable.h |    5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
> index e30442c..033ad30 100644
> --- a/arch/powerpc/include/asm/cputable.h
> +++ b/arch/powerpc/include/asm/cputable.h
> @@ -375,7 +375,8 @@ extern const char *powerpc_base_platform;
> #define CPU_FTRS_47X	(CPU_FTRS_440x6)
> #define CPU_FTRS_E200	(CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \
> 	    CPU_FTR_NODSISRALIGN | CPU_FTR_COHERENT_ICACHE | \
> -	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE)
> +	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE | \
> +	    CPU_FTR_DEBUG_LVL_EXC)

KVM on E200?


Alex

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Scott Wood - Jan. 9, 2012, 7:14 p.m.
On 01/09/2012 09:21 AM, Alexander Graf wrote:
> 
> On 21.12.2011, at 02:34, Scott Wood wrote:
> 
>> Currently 32-bit only cares about this for choice of exception
>> vector, which is done in core-specific code.  However, KVM will
>> want to distinguish as well.
>>
>> Signed-off-by: Scott Wood <scottwood@freescale.com>
>> ---
>> arch/powerpc/include/asm/cputable.h |    5 +++--
>> 1 files changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
>> index e30442c..033ad30 100644
>> --- a/arch/powerpc/include/asm/cputable.h
>> +++ b/arch/powerpc/include/asm/cputable.h
>> @@ -375,7 +375,8 @@ extern const char *powerpc_base_platform;
>> #define CPU_FTRS_47X	(CPU_FTRS_440x6)
>> #define CPU_FTRS_E200	(CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \
>> 	    CPU_FTR_NODSISRALIGN | CPU_FTR_COHERENT_ICACHE | \
>> -	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE)
>> +	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE | \
>> +	    CPU_FTR_DEBUG_LVL_EXC)
> 
> KVM on E200?

This isn't a KVM patch, it's a patch to make CPU_FTR_DEBUG_LVL_EXC be
set properly on 32-bit chips.  e200 has this CPU feature.

-Scott

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Patch

diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index e30442c..033ad30 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -375,7 +375,8 @@  extern const char *powerpc_base_platform;
 #define CPU_FTRS_47X	(CPU_FTRS_440x6)
 #define CPU_FTRS_E200	(CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \
 	    CPU_FTR_NODSISRALIGN | CPU_FTR_COHERENT_ICACHE | \
-	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE)
+	    CPU_FTR_UNIFIED_ID_CACHE | CPU_FTR_NOEXECUTE | \
+	    CPU_FTR_DEBUG_LVL_EXC)
 #define CPU_FTRS_E500	(CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
 	    CPU_FTR_SPE_COMP | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_NODSISRALIGN | \
 	    CPU_FTR_NOEXECUTE)
@@ -384,7 +385,7 @@  extern const char *powerpc_base_platform;
 	    CPU_FTR_NODSISRALIGN | CPU_FTR_NOEXECUTE)
 #define CPU_FTRS_E500MC	(CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
 	    CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
-	    CPU_FTR_DBELL)
+	    CPU_FTR_DBELL | CPU_FTR_DEBUG_LVL_EXC)
 #define CPU_FTRS_E5500	(CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \
 	    CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \
 	    CPU_FTR_DBELL | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \