提交 5cefdffa 编写于 作者: N Nishanth Menon 提交者: Zheng Zengkai

arm64: dts: ti: k3-j7200: Fix gic-v3 compatible regs

stable inclusion
from stable-v5.10.110
commit ef3a87e0c4b0c959346a23cdcdbd174ac4f85414
bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ef3a87e0c4b0c959346a23cdcdbd174ac4f85414

--------------------------------

commit 1a307cc2 upstream.

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/87k0e0tirw.wl-maz@kernel.org/
[3] https://developer.arm.com/documentation/100095/0002/way1382452674438

Cc: stable@vger.kernel.org
Fixes: d361ed88 ("arm64: dts: ti: Add support for J7200 SoC")
Reported-by: NMarc Zyngier <maz@kernel.org>
Signed-off-by: NNishanth Menon <nm@ti.com>
Acked-by: NMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220215201008.15235-4-nm@ti.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NYu Liao <liaoyu15@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
上级 ab73fc3a
......@@ -47,7 +47,10 @@
#interrupt-cells = <3>;
interrupt-controller;
reg = <0x00 0x01800000 0x00 0x10000>, /* GICD */
<0x00 0x01900000 0x00 0x100000>; /* GICR */
<0x00 0x01900000 0x00 0x100000>, /* GICR */
<0x00 0x6f000000 0x00 0x2000>, /* GICC */
<0x00 0x6f010000 0x00 0x1000>, /* GICH */
<0x00 0x6f020000 0x00 0x2000>; /* GICV */
/* vcpumntirq: virtual CPU interface maintenance interrupt */
interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
......
......@@ -127,6 +127,7 @@
<0x00 0x00a40000 0x00 0x00a40000 0x00 0x00000800>, /* timesync router */
<0x00 0x01000000 0x00 0x01000000 0x00 0x0d000000>, /* Most peripherals */
<0x00 0x30000000 0x00 0x30000000 0x00 0x0c400000>, /* MAIN NAVSS */
<0x00 0x6f000000 0x00 0x6f000000 0x00 0x00310000>, /* A72 PERIPHBASE */
<0x00 0x70000000 0x00 0x70000000 0x00 0x00800000>, /* MSMC RAM */
<0x00 0x18000000 0x00 0x18000000 0x00 0x08000000>, /* PCIe1 DAT0 */
<0x41 0x00000000 0x41 0x00000000 0x01 0x00000000>, /* PCIe1 DAT1 */
......
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