[PATCH v4 2/3] [ARM] perfevents: Add support for Scorpion performance monitors

[Jean Pihet]

On Tue, Mar 15, 2011 at 4:58 PM, Sheetal Sahasrabudhe
<sheetals at codeaurora.org> wrote:
> Hi Will/Jean,
>
> On Mon, March 14, 2011 6:35 pm, Bryan Huntsman wrote:
>> On 03/09/2011 09:16 AM, Sheetal Sahasrabudhe wrote:
>>> This commit adds support for performance monitors provided by
>>> Qualcomm Scorpion and ScorpionMP processor to perfevents.
>>>
>>> Signed-off-by: Sheetal Sahasrabudhe <sheetals at codeaurora.org>
>>> Reviewed-by: Jean Pihet <j-pihet at ti.com>
>>> Reviewed-by: Will Deacon <will.deacon at arm.com>
>>> ---
>>>  arch/arm/include/asm/perf_event.h |    2 +
>>>  arch/arm/kernel/perf_event.c      |   11 +
>>>  arch/arm/kernel/perf_event_msm.c  |  679 +++++++++++++++++++++++++++++++++++++
>>>  3 files changed, 692 insertions(+), 0 deletions(-)
>>>  create mode 100644 arch/arm/kernel/perf_event_msm.c
>>>
>>
>> ...
>>
>>> diff --git a/arch/arm/kernel/perf_event_msm.c b/arch/arm/kernel/perf_event_msm.c
>>> new file mode 100644
>>> index 0000000..4e42f27
>>> --- /dev/null
>>> +++ b/arch/arm/kernel/perf_event_msm.c
> [...]
>
>>> +#include <asm/vfp.h>
>>> +#include <asm/system.h>
>>> +#include "../vfp/vfpinstr.h"
>>
>> Sorry I didn't see this earlier.  Is there another way to get the info
>> you need that wouldn't use a relative include path?  If the info from
>> vfpinstr.h is now needed outside of the vfp directory, can it be moved
>> to a common header instead?  Thanks.
Good catch! Sorry I did not catch this one while reviewing the code.

>>
>> - Bryan
>
> I see other files under vfp that include this header.
> So if we were to implement Bryan's suggestion, I think a separate patch that moves the header and updates all the depdendencies would be more appropriate.
> Are you okay with the relative include path for vfpinstr.h in this patch for now or would you want to see an update to move vfpinstr.h to include/asm?.

Adding Russell and Nicolas for the VFP question.
Only fmrx and fmxr are used from "../vfp/vfpinstr.h". Can those be
moved to arch/arm/include/asm/vfp.h?

What is the best solution to this?

Regards,
Jean

>
> Thanks,
> Sheetal
>
> --
> Sent by an employee of the Qualcomm Innovation Center, Inc.
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
>
>
>
>