[PATCH v2 3/5] drm/xe/display: Avoid calling readq()

[Lucas De Marchi]

readq() is not available in 32bits. iosys-map already has the logic in
place to use read u64 in all cases, so simply add a helper variable for
using that.

Fixes: 44e694958b95 ("drm/xe/display: Implement display support")
Signed-off-by: Lucas De Marchi <lucas.demar...@intel.com>
---
 .../gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h 
b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
index 5f19550cc845..6739dadaf1a9 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/gem/i915_gem_object.h
@@ -7,6 +7,7 @@
 #define _I915_GEM_OBJECT_H_
 
 #include <linux/types.h>
+#include <linux/iosys-map.h>
 
 #include "xe_bo.h"
 
@@ -36,6 +37,7 @@ static inline int i915_gem_object_read_from_page(struct xe_bo 
*bo,
 {
        struct ttm_bo_kmap_obj map;
        void *virtual;
+       struct iosys_map vaddr;
        bool is_iomem;
        int ret;
 
@@ -52,10 +54,11 @@ static inline int i915_gem_object_read_from_page(struct 
xe_bo *bo,
        ofs &= ~PAGE_MASK;
        virtual = ttm_kmap_obj_virtual(&map, &is_iomem);
        if (is_iomem)
-               *ptr = readq((void __iomem *)(virtual + ofs));
+               iosys_map_set_vaddr_iomem(&vaddr, (void __iomem *)(virtual));
        else
-               *ptr = *(u64 *)(virtual + ofs);
+               iosys_map_set_vaddr(&vaddr, virtual);
 
+       *ptr = iosys_map_rd(&vaddr, ofs, u64);
        ttm_bo_kunmap(&map);
 out_unlock:
        xe_bo_unlock(bo);
-- 
2.40.1