[Mesa-dev] [PATCH v4 01/18] anv/image: Do not override lower bits of dword.

[Rafael Antognolli]

The lower bits seem to have extra fields in every platform but gen8
(even though we don't use them in gen9). So just go ahead and avoid
using them for the address.

v4: Use Jason's suggestion for comment explaining the change.

Signed-off-by: Rafael Antognolli <rafael.antognolli at intel.com>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
 src/intel/vulkan/anv_image.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/src/intel/vulkan/anv_image.c b/src/intel/vulkan/anv_image.c
index 4d60f872c1e..b20d791751d 100644
--- a/src/intel/vulkan/anv_image.c
+++ b/src/intel/vulkan/anv_image.c
@@ -1149,19 +1149,16 @@ anv_image_fill_surface_state(struct anv_device *device,
                           .x_offset_sa = tile_x_sa,
                           .y_offset_sa = tile_y_sa);
       state_inout->address = address + offset_B;
-      if (device->info.gen >= 8) {
-         state_inout->aux_address = aux_address;
-      } else {
-         /* On gen7 and prior, the bottom 12 bits of the MCS base address are
-          * used to store other information.  This should be ok, however,
-          * because surface buffer addresses are always 4K page alinged.
-          */
-         uint32_t *aux_addr_dw = state_inout->state.map +
-                                 device->isl_dev.ss.aux_addr_offset;
-         assert((aux_address & 0xfff) == 0);
-         assert(aux_address == (*aux_addr_dw & 0xfffff000));
-         state_inout->aux_address = *aux_addr_dw;
-      }
+
+      /* With the exception of gen8, the bottom 12 bits of the MCS base address
+       * are used to store other information.  This should be ok, however,
+       * because the surface buffer addresses are always 4K page aligned.
+       */
+      uint32_t *aux_addr_dw = state_inout->state.map +
+         device->isl_dev.ss.aux_addr_offset;
+      assert((aux_address & 0xfff) == 0);
+      assert(aux_address == (*aux_addr_dw & 0xfffff000));
+      state_inout->aux_address = *aux_addr_dw;
    }
 
    anv_state_flush(device, state_inout->state);
-- 
2.14.3