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| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-22 23:05:20 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-22 23:05:20 +0000 |
| commit | 2dbcb8f0a3250395c0ea8436ac519b6908dc0ee7 (patch) | |
| tree | fcc7592f5e22d5f0cc56be5339176545d885be52 /ArmPlatformPkg/PrePi/PrePi.c | |
| parent | f156d5b49d3f1c3dd1a9dc3c9b6d94b02c056ad1 (diff) | |
| download | edk2-platforms-2dbcb8f0a3250395c0ea8436ac519b6908dc0ee7.tar.xz | |
ArmPlatformPkg: Changed memory model for the stacks
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
Diffstat (limited to 'ArmPlatformPkg/PrePi/PrePi.c')
| -rwxr-xr-x | ArmPlatformPkg/PrePi/PrePi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ArmPlatformPkg/PrePi/PrePi.c b/ArmPlatformPkg/PrePi/PrePi.c index a0198d89b8..64c371c803 100755 --- a/ArmPlatformPkg/PrePi/PrePi.c +++ b/ArmPlatformPkg/PrePi/PrePi.c @@ -79,7 +79,6 @@ PrePiMain ( SaveAndSetDebugTimerInterrupt (TRUE);
UefiMemoryTop = UefiMemoryBase + FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);
- StacksSize = PcdGet32 (PcdCPUCoresNonSecStackSize) * PcdGet32 (PcdMPCoreMaxCores);
StacksBase = UefiMemoryTop - StacksSize;
// Check the PcdCPUCoresNonSecStackBase match with the calculated StackBase
@@ -99,6 +98,7 @@ PrePiMain ( ASSERT_EFI_ERROR (Status);
// Create the Stacks HOB (reserve the memory for all stacks)
+ StacksSize = PcdGet32 (PcdCPUCorePrimaryStackSize) + (FixedPcdGet32(PcdClusterCount) * 4 * FixedPcdGet32(PcdCPUCoreSecondaryStackSize));
BuildStackHob (StacksBase, StacksSize);
// Set the Boot Mode
|