[PULL 09/30] target/arm: Add isar predicates for FEAT_HAFDBS

Maintainers: "Cédric Le Goater" <clg@kaod.org>, Peter Maydell <peter.maydell@linaro.org>, Andrew Jeffery <andrew@aj.id.au>, Joel Stanley <joel@jms.id.au>, Richard Henderson <richard.henderson@linaro.org>, Helge Deller <deller@gmx.de>, Sergio Lopez <slp@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Eduardo Habkost <eduardo@habkost.net>, Laurent Vivier <laurent@vivier.eu>, Paul Burton <paulburton@kernel.org>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Stafford Horne <shorne@gmail.com>, BALATON Zoltan <balaton@eik.bme.hu>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Cornelia Huck <cohuck@redhat.com>, Thomas Huth <thuth@redhat.com>, David Hildenbrand <david@redhat.com>, Yanan Wang <wangyanan55@huawei.com>, Juan Quintela <quintela@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Eric Blake <eblake@redhat.com>, Markus Armbruster <armbru@redhat.com>
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[PULL 09/30] target/arm: Add isar predicates for FEAT_HAFDBS
Posted by Peter Maydell 2 years, 5 months ago
From: Richard Henderson <richard.henderson@linaro.org>

The MMFR1 field may indicate support for hardware update of
access flag alone, or access flag and dirty bit.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221024051851.3074715-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/cpu.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index f8c59858063..592b4ffbad4 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -4144,6 +4144,16 @@ static inline bool isar_feature_aa64_e0pd(const ARMISARegisters *id)
     return FIELD_EX64(id->id_aa64mmfr2, ID_AA64MMFR2, E0PD) != 0;
 }
 
+static inline bool isar_feature_aa64_hafs(const ARMISARegisters *id)
+{
+    return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, HAFDBS) != 0;
+}
+
+static inline bool isar_feature_aa64_hdbs(const ARMISARegisters *id)
+{
+    return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, HAFDBS) >= 2;
+}
+
 static inline bool isar_feature_aa64_tts2uxn(const ARMISARegisters *id)
 {
     return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, XNX) != 0;
-- 
2.25.1