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/Linux-v4.19/drivers/gpu/drm/i915/
Di915_drv.h2248 #define for_each_sgt_dma(__dmap, __iter, __sgt) \ argument
2249 for ((__iter) = __sgt_iter((__sgt)->sgl, true); \
2250 ((__dmap) = (__iter).dma + (__iter).curr); \
2251 (((__iter).curr += PAGE_SIZE) >= (__iter).max) ? \
2252 (__iter) = __sgt_iter(__sg_next((__iter).sgp), true), 0 : 0)
2260 #define for_each_sgt_page(__pp, __iter, __sgt) \ argument
2261 for ((__iter) = __sgt_iter((__sgt)->sgl, false); \
2262 ((__pp) = (__iter).pfn == 0 ? NULL : \
2263 pfn_to_page((__iter).pfn + ((__iter).curr >> PAGE_SHIFT))); \
2264 (((__iter).curr += PAGE_SIZE) >= (__iter).max) ? \
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