Commit 84ef4c12 authored by Dave Airlie's avatar Dave Airlie Committed by Alex Deucher

drm/radeon: add cayman VM support for append packet.

This adds support for SET_APPEND_CNT packet3 to the VM paths.
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent adcec288
...@@ -3483,6 +3483,27 @@ static int evergreen_vm_packet3_check(struct radeon_device *rdev, ...@@ -3483,6 +3483,27 @@ static int evergreen_vm_packet3_check(struct radeon_device *rdev,
} }
} }
break; break;
case PACKET3_SET_APPEND_CNT: {
uint32_t areg;
uint32_t allowed_reg_base;
if (pkt->count != 2) {
DRM_ERROR("bad SET_APPEND_CNT (invalid count)\n");
return -EINVAL;
}
allowed_reg_base = GDS_APPEND_COUNT_0;
allowed_reg_base -= PACKET3_SET_CONTEXT_REG_START;
allowed_reg_base >>= 2;
areg = idx_value >> 16;
if (areg < allowed_reg_base || areg > (allowed_reg_base + 11)) {
DRM_ERROR("forbidden register for append cnt 0x%08x at %d\n",
areg, idx);
return -EINVAL;
}
break;
}
default: default:
return -EINVAL; return -EINVAL;
} }
......
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