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The top of the stack always points to 'stack_base + stack_size'.
But the stack pointer is decremented before writing to the stack.
It means the top byte of the stack is actually 'stack_base + stack_size - 1'.
The initialization should also decrement the stack pointer before
zero'ing the memory (pre-indexed addressing).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16518 6f19259b-4bc3-4df7-8a09-765794883524
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Trailing spaces create issue/warning when generating/applying patches.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Reviewed-By: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15833 6f19259b-4bc3-4df7-8a09-765794883524
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ArmPlatformGetCorePosition()
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Acked-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14346 6f19259b-4bc3-4df7-8a09-765794883524
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Checking if a core if the primary/boot core used to be done with the macro
IS_PRIMARY_CORE().
Some platforms exposes configuration registers to change the primary core.
Replacing the macro IS_PRIMARY_CORE() by ArmPlatformIsPrimaryCore() allows
some flexibility in the way to check the primary core.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Ryan Harkin <ryan.harkin@linaro.org>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14344 6f19259b-4bc3-4df7-8a09-765794883524
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stacks
The new functions are:
- ArmPlatformStackSet(IN UINTN StackBase, IN UINTN MpId, IN UINTN PrimaryStackSize, IN UINTN SecondaryStackSize);
- ArmPlatformStackSetPrimary(IN UINTN StackBase, IN UINTN MpId, IN UINTN PrimaryStackSize, IN UINTN SecondaryStackSize);
- ArmPlatformStackSetSecondary(IN UINTN StackBase, IN UINTN MpId, IN UINTN PrimaryStackSize, IN UINTN SecondaryStackSize);
The stack topology can be changed by implementing a new ArmPlatformStackLib
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13774 6f19259b-4bc3-4df7-8a09-765794883524
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'GetCorePositionFromMpId'
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13493 6f19259b-4bc3-4df7-8a09-765794883524
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the Secure and Normal World
Having a similar setup reduces the error during the MPCore stack setup.
The stack setup is described on this wikipage:
https://sourceforge.net/apps/mediawiki/tianocore/index.php?title=ArmPlatformPkg/Stack
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13058 6f19259b-4bc3-4df7-8a09-765794883524
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In the previous version, every cores had the same stack size.
To avoid to waste memory with secondary core stacks, the primary core stack
size is now different from the secondary cores stack size.
These are the Stack PCDs and their default values:
gArmPlatformTokenSpaceGuid.PcdCPUCoresSecStackBase|0
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecPrimaryStackSize|0x10000
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecSecondaryStackSize|0x1000
gArmPlatformTokenSpaceGuid.PcdCPUCoresSecMonStackBase|0
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecMonStackSize|0x1000
gArmPlatformTokenSpaceGuid.PcdCPUCoresStackBase|0
gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize|0x10000
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize|0x1000
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12415 6f19259b-4bc3-4df7-8a09-765794883524
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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10444 6f19259b-4bc3-4df7-8a09-765794883524
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ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers.
EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell.
BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine).
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524
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