AG patches chunk A

Joel Sherrill joel.sherrill at OARcorp.com
Fri Feb 3 14:03:46 UTC 2012 

On 02/03/2012 07:29 AM, Daniel Hellstrom wrote:
> On 02/02/2012 03:39 PM, Daniel Hellstrom wrote:
>> Hello,
>>
>> I summarize the first chunk of patches, PATCH means I will send them on the rtems-devel list, PR means I will file a bugzilla PR. Feel free to comment.. and apply :)
>>
>> Patches are listed in reverse apply order, thus IO_MANAGER patch comes last.
>>
>> Thanks,
>> Daniel
> A summary of chunk A status:
>
>>
>> + SPARC specific enhancements
>>      c1afe98 LEON3: fix compiler warning in SHM driver
> BUG 2008. closed.
>> + SPARC specific bugs
>>      3e2aa5e LEON3BSP MP: may wake one more CPU than expected
> BUG 2006. closed
>>      fe9dc9e SPARC BSPs: workspace must be aligned on a 8-byte boundary
> BUG 2007. closed
>>      124e68d LEON3: CPU index intialization moved to bspstart.c
> BUG 2009. closed
>>      c7d92b6 LEON3: change d-cache snoop detect implementation
> BUG 2010. closed
>>      LEON specific because GRETH driver only used by LEON:
>>      7a92dba GRETH: Moved print to remove potential deadlock
>>      6c66b13 GRETH: performance improvements and one bugfix
> BUG 2011. closed. (both GRETH patches, in same PR)
>> + General bugs, (but not in any release, so PR not filed)
>>      839ef7b MP06 TEST: avoid program failure when slow UART on CPU core 0
> Pushed to future discussion, considered dirty. I'm dropping this issue at the moment, we can come back to this later on.
>
>> + General enhancements
>>      fe2ee40 bootstrap: handy --root switch for bootstrapping subdirs
> Sent to list, no comments.
>
I don't have a problem with this patch but since Ralf wrote the
script, I was hoping he would give his opinion.
>>      11ae399 IO_MANAGER: early dynamic driver registration
> Sent to list, on-going discussion.
>
>
> I'm satisfied with the current status, I can move on to chunk B. The last two patches has no dependencies any way.
>
> I have rebased my two branches, master and 4.10 branch without conflicts.
>
> Thanks all,
> Daniel
>
>>
>>
>> PATCH commit 8713dbeead0fb5ce880793ef391916cc422efce5
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Thu Nov 24 16:54:28 2011 +0100
>>
>>      IO_MANAGER: early dynamic driver registration
>>
>>      Adds the possibility to register drivers before the IO Manager has
>>      completed the initialization. Sometimes the BSP may want to register
>>      a driver dynamically early in the boot process.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PATCH commit b2a54a1af400bf731855fe26c8c4550a7cc0697b
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Nov 25 13:58:07 2011 +0100
>>
>>      bootstrap: handy --root switch for bootstrapping subdirs
>>
>>      Use the "--root DIR" to process only a subdir, for example
>>       $ ./bootstrap --root c/src/lib/libbsp/sparc
>>      will only generate Makefiles for all SPARC BSPs, saves some
>>      time when working with a specific BSP.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PR commit 6c66b134e18dc24b3fe8b2d9a9a6954c6bc6840e
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Dec 2 10:47:58 2011 +0100
>>
>>      GRETH: performance improvements and one bugfix
>>
>>      GRETH driver updated, 10-15% performance improvements for GBIT MAC,
>>      unnecessary RX interrupts not taken which under heavy load saves approx.
>>      1500 interrupts/s, one task removed saving about 5kb memory and 1 bug
>>      solved.
>>
>>      BUG: RX interrupt was enabled before the RX-daemon was created which could
>>      result in a faulty call to rtems_event_send.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PR commit 7a92dba76fa113ab9fba1ddc90a2578ea8ff8d0a
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Dec 2 10:45:10 2011 +0100
>>
>>      GRETH: Moved print to remove potential deadlock
>>
>>      Deadlock may arise when the EDCL bug link is used to tunnel
>>      console output over Ethernet, when Ethernet is down one should
>>      avoid using console (only during debugging of LEON targets)
>>
>>      Author: Marko Isomaki<marko at gaisler.com>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PR[DEP-1] commit c7d92b6562014f85a29bd94ceb2c3292f36dfb32
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Nov 25 14:02:00 2011 +0100
>>
>>      LEON3: change d-cache snoop detect implementation
>>
>>      The previous code only checked if d-cache snooping was implemented,
>>      however snooping may be available but not enabled which may lead
>>      to driver bugs.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PR commit 124e68d114f1ae6489ee86167357e6b6b16503e5
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Nov 25 14:15:16 2011 +0100
>>
>>      LEON3: CPU index intialization moved to bspstart.c
>>
>>      All LEON3/4 systems have a CPU-id, if on a single-CPU system the
>>      ID is always zero. On a multicore system it ranges from 0 to 15.
>>
>>      The CPU index should always by updated even in a non-MP RTEMS OS
>>      since the CPU running RTEMS may not always be CPU0. For example
>>      when RTEMS runs on CPU1 and Linux on CPU0 in a mixed ASMP system.
>>
>>      The old code executed within the IRQ controller initialization code
>>      makes no sense since the ASR register is a CPU register, it has
>>      nothing to do with AMBA initialization either.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PATCH commit 839ef7ba191dc65ecbb777bbd108758025259d34
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Wed Nov 16 16:56:46 2011 +0100
>>
>>      MP06 TEST: avoid program failure when slow UART on CPU core 0
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PR commit fe9dc9e1a55c1e71980eaa290f193cdae79141ca
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Nov 25 10:54:28 2011 +0100
>>
>>      SPARC BSPs: workspace must be aligned on a 8-byte boundary
>>
>>      The linker-script already declares a 8-byte aligned symbol (_end)
>>      which can be used instead of "variable aligned" symbol end.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PR commit 3e2aa5ed2415ff02dac7545930f0a07c546dac77
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Wed Nov 9 16:09:55 2011 +0100
>>
>>      LEON3BSP MP: may wake one more CPU than expected
>>
>>      The SHM code always wakes one CPU more that configured, however
>>      this has never been a problem since RTEMS will be running on all CPUs
>>      or only two cores were available.
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
>> PATCH commit c1afe981bf63c79f695b6ff826c5109a9f7f1dd7
>> Author: Daniel Hellstrom<daniel at gaisler.com>
>> Date:   Fri Nov 25 11:33:11 2011 +0100
>>
>>      LEON3: fix compiler warning in SHM driver
>>
>>      Signed-off-by: Daniel Hellstrom<daniel at gaisler.com>
>>
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>>
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-- 
Joel Sherrill, Ph.D.             Director of Research&   Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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