feat(tcr2): support FEAT_TCR2
Arm v8.9 introduces FEAT_TCR2, adding extended translation control
registers. Support this, context switching TCR2_EL2 and disabling
traps so lower ELs can access the new registers.
Change the FVP platform to default to handling this as a dynamic option so
the right decision can be made by the code at runtime.
Signed-off-by: Mark Brown <broonie@kernel.org>
Change-Id: I297452acd8646d58bac64fc15e05b06a543e5148
diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index 3350c8f..81e0e06 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -579,6 +579,12 @@
/* FEAT_HCX Register */
DEFINE_RENAME_SYSREG_RW_FUNCS(hcrx_el2, HCRX_EL2)
+/* Armv8.9 system registers */
+DEFINE_RENAME_IDREG_READ_FUNC(id_aa64mmfr3_el1, ID_AA64MMFR3_EL1)
+
+/* FEAT_TCR2 Register */
+DEFINE_RENAME_SYSREG_RW_FUNCS(tcr2_el2, TCR2_EL2)
+
/* DynamIQ Shared Unit power management */
DEFINE_RENAME_SYSREG_RW_FUNCS(clusterpwrdn_el1, CLUSTERPWRDN_EL1)