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The data structure |struct drm_vram_mm| and its helpers replace ast's TTM-based memory manager. It's the same implementation; except for the type names. v4: * don't select DRM_TTM or DRM_VRAM_MM_HELPER v3: * use drm_gem_vram_mm_funcs * convert driver to drm_device-based instance v2: * implement ast_mmap() with drm_vram_mm_mmap() Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-11-tzimmermann@suse.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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*/
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/*
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* Authors: Dave Airlie <airlied@redhat.com>
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*/
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#include <drm/drmP.h>
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#include "ast_drv.h"
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int ast_mm_init(struct ast_private *ast)
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{
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struct drm_vram_mm *vmm;
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int ret;
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struct drm_device *dev = ast->dev;
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vmm = drm_vram_helper_alloc_mm(
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dev, pci_resource_start(dev->pdev, 0),
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ast->vram_size, &drm_gem_vram_mm_funcs);
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if (IS_ERR(vmm)) {
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ret = PTR_ERR(vmm);
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DRM_ERROR("Error initializing VRAM MM; %d\n", ret);
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return ret;
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}
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arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0),
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pci_resource_len(dev->pdev, 0));
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ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
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pci_resource_len(dev->pdev, 0));
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return 0;
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}
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void ast_mm_fini(struct ast_private *ast)
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{
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struct drm_device *dev = ast->dev;
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drm_vram_helper_release_mm(dev);
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arch_phys_wc_del(ast->fb_mtrr);
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arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
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pci_resource_len(dev->pdev, 0));
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}
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