[PATCH for-5.2 v4 11/11] hw/arm/smmuv3: Advertise SMMUv3.2 range invalidation

Eric Auger posted 11 patches 7 weeks ago
Maintainers: Peter Maydell <peter.maydell@linaro.org>, Eric Auger <eric.auger@redhat.com>

[PATCH for-5.2 v4 11/11] hw/arm/smmuv3: Advertise SMMUv3.2 range invalidation

Posted by Eric Auger 7 weeks ago
Expose the RIL bit so that the guest driver uses range
invalidation. Although RIL is a 3.2 features, We let
the AIDR advertise SMMUv3.1 support as v3.x implementation
is allowed to implement features from v3.(x+1).

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

---

v2 -> v3:
- keep the AIDR equal to 2. BBML support, which is 3.2
  mandatory feature will be addressed in a separate
  patch.
- added Peter's R-b (same version as in v1)
---
 hw/arm/smmuv3-internal.h | 1 +
 hw/arm/smmuv3.c          | 1 +
 2 files changed, 2 insertions(+)

diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h
index 9ae7d97faf..fa3c088972 100644
--- a/hw/arm/smmuv3-internal.h
+++ b/hw/arm/smmuv3-internal.h
@@ -55,6 +55,7 @@ REG32(IDR1,                0x4)
 REG32(IDR2,                0x8)
 REG32(IDR3,                0xc)
      FIELD(IDR3, HAD,         2, 1);
+     FIELD(IDR3, RIL,        10, 1);
 REG32(IDR4,                0x10)
 REG32(IDR5,                0x14)
      FIELD(IDR5, OAS,         0, 3);
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index b262f0e4a7..0122700e72 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -254,6 +254,7 @@ static void smmuv3_init_regs(SMMUv3State *s)
     s->idr[1] = FIELD_DP32(s->idr[1], IDR1, EVENTQS, SMMU_EVENTQS);
     s->idr[1] = FIELD_DP32(s->idr[1], IDR1, CMDQS,   SMMU_CMDQS);
 
+    s->idr[3] = FIELD_DP32(s->idr[3], IDR3, RIL, 1);
     s->idr[3] = FIELD_DP32(s->idr[3], IDR3, HAD, 1);
 
    /* 4K and 64K granule support */
-- 
2.21.3