[Mesa-dev] [PATCH 06/16] anv: Predicate 48bit support on gen >= 8

[Jason Ekstrand]

This doesn't matter right now since it only affects whether or not we
set the kernel bit but, if we ever do anything else based on it, we'll
want it to be correct per-gen.
---
 src/intel/vulkan/anv_device.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 50486b6..b80715f 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -225,7 +225,12 @@ anv_physical_device_init(struct anv_physical_device *device,
       goto fail;
    }
 
-   device->supports_48bit_addresses = anv_gem_supports_48b_addresses(fd);
+   /* The kernel query only tells us whether or not the kernel supports the
+    * EXEC_OBJECT_SUPPORTS_48B_ADDRESS flag and not whether or not the
+    * hardware has actual 48bit address support.
+    */
+   device->supports_48bit_addresses =
+      (device->info.gen >= 8) && anv_gem_supports_48b_addresses(fd);
 
    result = anv_compute_heap_size(fd, &device->heap_size);
    if (result != VK_SUCCESS)
-- 
2.5.0.400.gff86faf