intel/blorp: Expand blorp_address::offset to be 64 bits.

In the softpin world, surface state base address may be a fixed 64-bit
address (with no associated BO).  It makes sense to store this in the
offset field.  But it needs to be the full size.

We also update the clear color address to be consistently uint64_t
everywhere so we can continue passing intel_miptree_get_clear_color
a pointer to the blorp_address's offset field without type mismatches.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

src/intel/blorp/blorp.h

@@ -91,8 +91,8 @@ void blorp_batch_finish(struct blorp_batch *batch);
 
 struct blorp_address {
    void *buffer;
+   uint64_t offset;
    unsigned reloc_flags;
-   uint32_t offset;
    uint32_t mocs;
 };
 

src/mesa/drivers/dri/i965/brw_wm_surface_state.c

@@ -156,7 +156,7 @@ brw_emit_surface_state(struct brw_context *brw,
    struct isl_surf *aux_surf = NULL;
    uint64_t aux_offset = 0;
    struct brw_bo *clear_bo = NULL;
-   uint32_t clear_offset = 0;
+   uint64_t clear_offset = 0;
 
    if (aux_usage != ISL_AUX_USAGE_NONE) {
       aux_surf = &mt->aux_buf->surf;

src/mesa/drivers/dri/i965/intel_mipmap_tree.c

@@ -3865,7 +3865,7 @@ intel_miptree_get_clear_color(const struct gen_device_info *devinfo,
                               const struct intel_mipmap_tree *mt,
                               enum isl_format view_format, bool sampling,
                               struct brw_bo **clear_color_bo,
-                              uint32_t *clear_color_offset)
+                              uint64_t *clear_color_offset)
 {
    assert(mt->aux_buf);
 

src/mesa/drivers/dri/i965/intel_mipmap_tree.h

@@ -714,7 +714,7 @@ intel_miptree_get_clear_color(const struct gen_device_info *devinfo,
                               const struct intel_mipmap_tree *mt,
                               enum isl_format view_format, bool sampling,
                               struct brw_bo **clear_color_bo,
-                              uint32_t *clear_color_offset);
+                              uint64_t *clear_color_offset);
 
 
 static inline int