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Create an io-mapping to describe the CPU aperture for lmem. Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20191025153728.23689-2-chris@chris-wilson.co.uk
40 lines
831 B
C
40 lines
831 B
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#include "i915_drv.h"
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#include "intel_memory_region.h"
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#include "gem/i915_gem_lmem.h"
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#include "gem/i915_gem_region.h"
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#include "intel_region_lmem.h"
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static void
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region_lmem_release(struct intel_memory_region *mem)
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{
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io_mapping_fini(&mem->iomap);
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intel_memory_region_release_buddy(mem);
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}
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static int
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region_lmem_init(struct intel_memory_region *mem)
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{
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int ret;
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if (!io_mapping_init_wc(&mem->iomap,
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mem->io_start,
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resource_size(&mem->region)))
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return -EIO;
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ret = intel_memory_region_init_buddy(mem);
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if (ret)
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io_mapping_fini(&mem->iomap);
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return ret;
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}
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const struct intel_memory_region_ops intel_region_lmem_ops = {
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.init = region_lmem_init,
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.release = region_lmem_release,
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.create_object = __i915_gem_lmem_object_create,
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};
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