[RFC PATCH 1/7] drm/i915: instantiate ttm ranger manager for stolen memory

Signed-off-by: Robert Beckett bob.beckett@collabora.com --- drivers/gpu/drm/i915/intel_region_ttm.c | 29 +++++++++++++++++++------ 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index 737ef3f4ab54..bb564b830c96 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -57,11 +57,17 @@ int intel_region_to_ttm_type(const struct intel_memory_region *mem)

GEM_BUG_ON(mem->type != INTEL_MEMORY_LOCAL && mem->type != INTEL_MEMORY_MOCK && - mem->type != INTEL_MEMORY_SYSTEM); + mem->type != INTEL_MEMORY_SYSTEM && + mem->type != INTEL_MEMORY_STOLEN_SYSTEM && + mem->type != INTEL_MEMORY_STOLEN_LOCAL);

if (mem->type == INTEL_MEMORY_SYSTEM) return TTM_PL_SYSTEM;

+ if (mem->type == INTEL_MEMORY_STOLEN_SYSTEM || + mem->type == INTEL_MEMORY_STOLEN_LOCAL) + return TTM_PL_VRAM; + type = mem->instance + TTM_PL_PRIV; GEM_BUG_ON(type >= TTM_NUM_MEM_TYPES);

@@ -85,10 +91,16 @@ int intel_region_ttm_init(struct intel_memory_region *mem) int mem_type = intel_region_to_ttm_type(mem); int ret;

- ret = i915_ttm_buddy_man_init(bdev, mem_type, false, - resource_size(&mem->region), - mem->io_size, - mem->min_page_size, PAGE_SIZE); + if (mem_type == TTM_PL_VRAM) { + ret = ttm_range_man_init(bdev, mem_type, false, + resource_size(&mem->region) >> PAGE_SHIFT); + mem->is_range_manager = true; + } else { + ret = i915_ttm_buddy_man_init(bdev, mem_type, false, + resource_size(&mem->region), + mem->io_size, + mem->min_page_size, PAGE_SIZE); + } if (ret) return ret;

@@ -108,6 +120,7 @@ int intel_region_ttm_init(struct intel_memory_region *mem) int intel_region_ttm_fini(struct intel_memory_region *mem) { struct ttm_resource_manager *man = mem->region_private; + int mem_type = intel_region_to_ttm_type(mem); int ret = -EBUSY; int count;

@@ -138,8 +151,10 @@ int intel_region_ttm_fini(struct intel_memory_region *mem) if (ret || !man) return ret;

- ret = i915_ttm_buddy_man_fini(&mem->i915->bdev, - intel_region_to_ttm_type(mem)); + if (mem_type == TTM_PL_VRAM) + ret = ttm_range_man_fini(&mem->i915->bdev, mem_type); + else + ret = i915_ttm_buddy_man_fini(&mem->i915->bdev, mem_type); GEM_WARN_ON(ret); mem->region_private = NULL;