i915/gem/i915_gem_stolen.c

80 static bool valid_stolen_size(struct drm_i915_private *i915, struct resource *dsm)
82 	return (dsm->start != 0 || HAS_LMEMBAR_SMEM_STOLEN(i915)) && dsm->end > dsm->start;
86 			 struct resource *dsm)
91 	if (!valid_stolen_size(i915, dsm))
102 		struct resource stolen[2] = {*dsm, *dsm};
122 			*dsm = stolen[0];
124 			*dsm = stolen[1];
132 				dsm);
136 	if (!valid_stolen_size(i915, dsm))
143 			       struct resource *dsm)
164 	r = devm_request_mem_region(i915->drm.dev, dsm->start,
165 				    resource_size(dsm),
177 		r = devm_request_mem_region(i915->drm.dev, dsm->start + 1,
178 					    resource_size(dsm) - 2,
187 				dsm);
214 	resource_size_t stolen_top = i915->dsm.stolen.end + 1;
279 	resource_size_t stolen_top = i915->dsm.stolen.end + 1;
368 	resource_size_t stolen_top = i915->dsm.stolen.end + 1;
404 		if (gscpsmi_base >= i915->dsm.stolen.start &&
405 		    gscpsmi_base < i915->dsm.stolen.end) {
407 			*size = i915->dsm.stolen.end - gscpsmi_base;
438  * Initialize i915->dsm.reserved to contain the reserved space within the Data
454 	stolen_top = i915->dsm.stolen.end + 1;
495 	i915->dsm.reserved = DEFINE_RES_MEM(reserved_base, reserved_size);
498 	if (!resource_contains(&i915->dsm.stolen, &i915->dsm.reserved)) {
501 			&i915->dsm.reserved, &i915->dsm.stolen);
510 	i915->dsm.reserved = DEFINE_RES_MEM(reserved_base, 0);
541 	i915->dsm.stolen = mem->region;
547 	mem->region.end = i915->dsm.reserved.start - 1;
550 	i915->dsm.usable_size = resource_size(&mem->region);
554 		(u64)resource_size(&i915->dsm.stolen) >> 10,
555 		(u64)i915->dsm.usable_size >> 10);
557 	if (i915->dsm.usable_size == 0)
561 	drm_mm_init(&i915->mm.stolen, 0, i915->dsm.usable_size);
569 		i915->dsm.usable_size = 0;
621 	GEM_BUG_ON(range_overflows(offset, size, resource_size(&i915->dsm.stolen)));
641 	sg_dma_address(sg) = (dma_addr_t)i915->dsm.stolen.start + offset;
972 		 * MTL dsm size is in GGC register.
1065 	return i915->dsm.stolen.start;
1070 	return resource_size(&i915->dsm.stolen);
1076 	return i915->dsm.stolen.start + i915_gem_stolen_node_offset(node);