commit ae3b3ba15c73320f75c121b08266a25a9e5d4edb
author Peter Maydell <peter.maydell@linaro.org> Fri Apr 08 15:15:31 2022 +0100
committer Peter Maydell <peter.maydell@linaro.org> Fri Apr 22 14:44:52 2022 +0100
tree 1b247f393eee5c741a56072fae2f6c10196884e5
parent c6dd2f9950cb59f7a02d57dcefef4d982efc6c7e

hw/intc/arm_gicv3: Implement GICv4's new redistributor frame

The GICv4 extends the redistributor register map -- where GICv3
had two 64KB frames per CPU, GICv4 has four frames. Add support
for the extra frame by using a new gicv3_redist_size() function
in the places in the GIC implementation which currently use
a fixed constant size for the redistributor register block.
(Until we implement the extra registers they will RAZ/WI.)

Any board that wants to use a GICv4 will need to also adjust
to handle the different sized redistributor register block;
that will be done separately.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220408141550.1271295-23-peter.maydell@linaro.org

hw/intc/arm_gicv3_common.c

diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
index dcc5ce2..18999e3 100644
--- a/hw/intc/arm_gicv3_common.c
+++ b/hw/intc/arm_gicv3_common.c
@@ -295,7 +295,7 @@
 
         memory_region_init_io(&region->iomem, OBJECT(s),
                               ops ? &ops[1] : NULL, region, name,
-                              s->redist_region_count[i] * GICV3_REDIST_SIZE);
+                              s->redist_region_count[i] * gicv3_redist_size(s));
         sysbus_init_mmio(sbd, &region->iomem);
         g_free(name);
     }