diff options
| author | Jose Marinho <jose.marinho@arm.com> | 2017-06-29 13:07:21 +0100 |
|---|---|---|
| committer | Andreas Sandberg <andreas.sandberg@arm.com> | 2017-07-10 08:49:28 +0000 |
| commit | 91f965dd5708eb365f1b28d30f2c3f012519b1c2 (patch) | |
| tree | 64476ad13f084b96cab3f69a0a602bcdedba5979 /src/dev/arm | |
| parent | 22e11ea8dbf6ecb6f1788ae30883106c39aa30fa (diff) | |
| download | gem5-91f965dd5708eb365f1b28d30f2c3f012519b1c2.tar.xz | |
dev-arm: Add ID registers to the GIC model
Implement GICD_IIDR, GICC_IIDR, GICD_PIDR0, GICD_PIDR1, GICD_PIDR2,
and GICD_PIDR3.
Change-Id: I4f6b5a6303907226e7d8e2f677543b3868c02e7b
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/3961
Diffstat (limited to 'src/dev/arm')
| -rw-r--r-- | src/dev/arm/gic_pl390.cc | 14 | ||||
| -rw-r--r-- | src/dev/arm/gic_pl390.hh | 13 |
2 files changed, 26 insertions, 1 deletions
diff --git a/src/dev/arm/gic_pl390.cc b/src/dev/arm/gic_pl390.cc index 93aaf5c45..126431fe6 100644 --- a/src/dev/arm/gic_pl390.cc +++ b/src/dev/arm/gic_pl390.cc @@ -258,6 +258,18 @@ Pl390::readDistributor(ContextID ctx, Addr daddr, size_t resp_sz) return (((sys->numRunningContexts() - 1) << 5) | (itLines/INT_BITS_MAX -1) | (haveGem5Extensions ? 0x100 : 0x0)); + case GICD_PIDR0: + //ARM defined DevID + return (GICD_400_PIDR_VALUE & 0xFF); + case GICD_PIDR1: + return ((GICD_400_PIDR_VALUE >> 8) & 0xFF); + case GICD_PIDR2: + return ((GICD_400_PIDR_VALUE >> 16) & 0xFF); + case GICD_PIDR3: + return ((GICD_400_PIDR_VALUE >> 24) & 0xFF); + case GICD_IIDR: + /* revision id is resorted to 1 and variant to 0*/ + return GICD_400_IIDR_VALUE; default: panic("Tried to read Gic distributor at offset %#x\n", daddr); break; @@ -287,7 +299,7 @@ Pl390::readCpu(ContextID ctx, Addr daddr) { switch(daddr) { case GICC_IIDR: - return 0; + return GICC_400_IIDR_VALUE; case GICC_CTLR: return cpuEnabled[ctx]; case GICC_PMR: diff --git a/src/dev/arm/gic_pl390.hh b/src/dev/arm/gic_pl390.hh index 3b35b59fb..60d9ae30d 100644 --- a/src/dev/arm/gic_pl390.hh +++ b/src/dev/arm/gic_pl390.hh @@ -67,10 +67,23 @@ class Pl390 : public BaseGic, public BaseGicRegisters GICD_TYPER = 0x004, // controller type GICD_IIDR = 0x008, // implementer id GICD_SGIR = 0xf00, // software generated interrupt + GICD_PIDR0 = 0xfe0, // distributor peripheral ID0 + GICD_PIDR1 = 0xfe4, // distributor peripheral ID1 + GICD_PIDR2 = 0xfe8, // distributor peripheral ID2 + GICD_PIDR3 = 0xfec, // distributor peripheral ID3 DIST_SIZE = 0xfff }; + /** + * As defined in: + * "ARM Generic Interrupt Controller Architecture" version 2.0 + * "CoreLink GIC-400 Generic Interrupt Controller" revision r0p1 + */ + static constexpr uint32_t GICD_400_PIDR_VALUE = 0x002bb490; + static constexpr uint32_t GICD_400_IIDR_VALUE = 0x200143B; + static constexpr uint32_t GICC_400_IIDR_VALUE = 0x202143B; + static const AddrRange GICD_IGROUPR; // interrupt group (unimplemented) static const AddrRange GICD_ISENABLER; // interrupt set enable static const AddrRange GICD_ICENABLER; // interrupt clear enable |