mirror of https://github.com/acidanthera/audk.git
ArmPkg/PL390Gic: Fixed setting of the Interrupt Processor Targets Registers when Uniprocessor
When running on a uniprocessor implementation, the ICDIPTRn registers are RAZ (Read as Zero). So the previous assertion was not correct. 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@14798 6f19259b-4bc3-4df7-8a09-765794883524
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@ -378,12 +378,12 @@ InterruptDxeInitialize (
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CpuTarget = MmioRead32 (PcdGet32 (PcdGicDistributorBase) + ARM_GIC_ICDIPTR);
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CpuTarget = MmioRead32 (PcdGet32 (PcdGicDistributorBase) + ARM_GIC_ICDIPTR);
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// The CPU target is a bit field mapping each CPU to a GIC CPU Interface. This value
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// The CPU target is a bit field mapping each CPU to a GIC CPU Interface. This value
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// cannot be 0.
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// is 0 when we run on a uniprocessor platform.
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ASSERT (CpuTarget != 0);
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if (CpuTarget != 0) {
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// The 8 first Interrupt Processor Targets Registers are read-only
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// The 8 first Interrupt Processor Targets Registers are read-only
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for (Index = 8; Index < (mGicNumInterrupts / 4); Index++) {
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for (Index = 8; Index < (mGicNumInterrupts / 4); Index++) {
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MmioWrite32 (PcdGet32 (PcdGicDistributorBase) + ARM_GIC_ICDIPTR + (Index * 4), CpuTarget);
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MmioWrite32 (PcdGet32 (PcdGicDistributorBase) + ARM_GIC_ICDIPTR + (Index * 4), CpuTarget);
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}
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}
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}
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// Set binary point reg to 0x7 (no preemption)
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// Set binary point reg to 0x7 (no preemption)
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