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| author | Nishanth Menon <[email protected]> | 2022-02-15 14:10:06 -0600 |
|---|---|---|
| committer | Nishanth Menon <[email protected]> | 2022-02-22 11:04:12 -0600 |
| commit | 1a307cc299430dd7139d351a3b8941f493dfa885 (patch) | |
| tree | aa6ed70b188ff9c4dbbae08678433c755606917e /scripts/gcc-plugins/gcc-common.h | |
| parent | a06ed27f3bc63ab9e10007dc0118d910908eb045 (diff) | |
arm64: dts: ti: k3-j7200: Fix gic-v3 compatible regs
Though GIC ARE option is disabled for no GIC-v2 compatibility,
Cortex-A72 is free to implement the CPU interface as long as it
communicates with the GIC using the stream protocol. This requires
that the SoC integration mark out the PERIPHBASE[1] as reserved area
within the SoC. See longer discussion in [2] for further information.
Update the GIC register map to indicate offsets from PERIPHBASE based
on [3]. Without doing this, systems like kvm will not function with
gic-v2 emulation.
[1] https://developer.arm.com/documentation/100095/0002/system-control/aarch64-register-descriptions/configuration-base-address-register--el1
[2] https://lore.kernel.org/all/[email protected]/
[3] https://developer.arm.com/documentation/100095/0002/way1382452674438
Cc: [email protected]
Fixes: d361ed88455f ("arm64: dts: ti: Add support for J7200 SoC")
Reported-by: Marc Zyngier <[email protected]>
Signed-off-by: Nishanth Menon <[email protected]>
Acked-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'scripts/gcc-plugins/gcc-common.h')
0 files changed, 0 insertions, 0 deletions