+// SPDX-License-Identifier: MIT
/*
* Copyright (C) 2013-2017 Oracle Corporation
* This file is based on ast_fb.c
* Copyright 2012 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
* Authors: Dave Airlie <airlied@redhat.com>
* Michael Thayer <michael.thayer@oracle.com,
*/
#include <linux/fb.h>
#include <linux/init.h>
-#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_crtc_helper.h>
.fb_debug_leave = drm_fb_helper_debug_leave,
};
-static int vboxfb_create_object(struct vbox_fbdev *fbdev,
- struct DRM_MODE_FB_CMD *mode_cmd,
- struct drm_gem_object **gobj_p)
+int vboxfb_create(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
{
- struct drm_device *dev = fbdev->helper.dev;
- u32 size;
- struct drm_gem_object *gobj;
- u32 pitch = mode_cmd->pitches[0];
- int ret;
-
- size = pitch * mode_cmd->height;
- ret = vbox_gem_create(dev, size, true, &gobj);
- if (ret)
- return ret;
-
- *gobj_p = gobj;
-
- return 0;
-}
-
-static int vboxfb_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct vbox_fbdev *fbdev =
- container_of(helper, struct vbox_fbdev, helper);
- struct drm_device *dev = fbdev->helper.dev;
- struct DRM_MODE_FB_CMD mode_cmd;
+ struct vbox_private *vbox =
+ container_of(helper, struct vbox_private, fb_helper);
+ struct pci_dev *pdev = vbox->ddev.pdev;
+ struct drm_mode_fb_cmd2 mode_cmd;
struct drm_framebuffer *fb;
struct fb_info *info;
struct drm_gem_object *gobj;
struct vbox_bo *bo;
int size, ret;
+ u64 gpu_addr;
u32 pitch;
mode_cmd.width = sizes->surface_width;
size = pitch * mode_cmd.height;
- ret = vboxfb_create_object(fbdev, &mode_cmd, &gobj);
+ ret = vbox_gem_create(vbox, size, true, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon backing object %d\n", ret);
return ret;
}
- ret = vbox_framebuffer_init(dev, &fbdev->afb, &mode_cmd, gobj);
+ ret = vbox_framebuffer_init(vbox, &vbox->afb, &mode_cmd, gobj);
if (ret)
return ret;
bo = gem_to_vbox_bo(gobj);
- ret = vbox_bo_reserve(bo, false);
+ ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
if (ret)
return ret;
- ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
- if (ret) {
- vbox_bo_unreserve(bo);
- return ret;
- }
-
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
- vbox_bo_unreserve(bo);
- if (ret) {
- DRM_ERROR("failed to kmap fbcon\n");
- return ret;
- }
-
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info))
- return -PTR_ERR(info);
+ return PTR_ERR(info);
- info->par = fbdev;
+ info->screen_size = size;
+ info->screen_base = (char __iomem *)vbox_bo_kmap(bo);
+ if (IS_ERR(info->screen_base))
+ return PTR_ERR(info->screen_base);
- fbdev->size = size;
+ info->par = helper;
- fb = &fbdev->afb.base;
- fbdev->helper.fb = fb;
+ fb = &vbox->afb.base;
+ helper->fb = fb;
strcpy(info->fix.id, "vboxdrmfb");
* This seems to be done for safety checking that the framebuffer
* is not registered twice by different drivers.
*/
- info->apertures->ranges[0].base = pci_resource_start(dev->pdev, 0);
- info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0);
+ info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
+ info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
- drm_fb_helper_fill_var(info, &fbdev->helper, sizes->fb_width,
+ drm_fb_helper_fill_var(info, helper, sizes->fb_width,
sizes->fb_height);
- info->screen_base = (char __iomem *)bo->kmap.virtual;
- info->screen_size = size;
+ gpu_addr = vbox_bo_gpu_offset(bo);
+ info->fix.smem_start = info->apertures->ranges[0].base + gpu_addr;
+ info->fix.smem_len = vbox->available_vram_size - gpu_addr;
#ifdef CONFIG_DRM_KMS_FB_HELPER
info->fbdefio = &vbox_defio;
return 0;
}
-static struct drm_fb_helper_funcs vbox_fb_helper_funcs = {
- .fb_probe = vboxfb_create,
-};
-
-void vbox_fbdev_fini(struct drm_device *dev)
+void vbox_fbdev_fini(struct vbox_private *vbox)
{
- struct vbox_private *vbox = dev->dev_private;
- struct vbox_fbdev *fbdev = vbox->fbdev;
- struct vbox_framebuffer *afb = &fbdev->afb;
+ struct vbox_framebuffer *afb = &vbox->afb;
#ifdef CONFIG_DRM_KMS_FB_HELPER
- if (fbdev->helper.fbdev && fbdev->helper.fbdev->fbdefio)
- fb_deferred_io_cleanup(fbdev->helper.fbdev);
+ if (vbox->fb_helper.fbdev && vbox->fb_helper.fbdev->fbdefio)
+ fb_deferred_io_cleanup(vbox->fb_helper.fbdev);
#endif
- drm_fb_helper_unregister_fbi(&fbdev->helper);
+ drm_fb_helper_unregister_fbi(&vbox->fb_helper);
if (afb->obj) {
struct vbox_bo *bo = gem_to_vbox_bo(afb->obj);
- if (!vbox_bo_reserve(bo, false)) {
- if (bo->kmap.virtual)
- ttm_bo_kunmap(&bo->kmap);
- /*
- * QXL does this, but is it really needed before
- * freeing?
- */
- if (bo->pin_count)
- vbox_bo_unpin(bo);
- vbox_bo_unreserve(bo);
- }
+ vbox_bo_kunmap(bo);
+
+ if (bo->pin_count)
+ vbox_bo_unpin(bo);
+
drm_gem_object_put_unlocked(afb->obj);
afb->obj = NULL;
}
- drm_fb_helper_fini(&fbdev->helper);
+ drm_fb_helper_fini(&vbox->fb_helper);
drm_framebuffer_unregister_private(&afb->base);
drm_framebuffer_cleanup(&afb->base);
}
-
-int vbox_fbdev_init(struct drm_device *dev)
-{
- struct vbox_private *vbox = dev->dev_private;
- struct vbox_fbdev *fbdev;
- int ret;
-
- fbdev = devm_kzalloc(dev->dev, sizeof(*fbdev), GFP_KERNEL);
- if (!fbdev)
- return -ENOMEM;
-
- vbox->fbdev = fbdev;
- spin_lock_init(&fbdev->dirty_lock);
-
- drm_fb_helper_prepare(dev, &fbdev->helper, &vbox_fb_helper_funcs);
- ret = drm_fb_helper_init(dev, &fbdev->helper, vbox->num_crtcs);
- if (ret)
- return ret;
-
- ret = drm_fb_helper_single_add_all_connectors(&fbdev->helper);
- if (ret)
- goto err_fini;
-
- /* disable all the possible outputs/crtcs before entering KMS mode */
- drm_helper_disable_unused_functions(dev);
-
- ret = drm_fb_helper_initial_config(&fbdev->helper, 32);
- if (ret)
- goto err_fini;
-
- return 0;
-
-err_fini:
- drm_fb_helper_fini(&fbdev->helper);
- return ret;
-}
-
-void vbox_fbdev_set_base(struct vbox_private *vbox, unsigned long gpu_addr)
-{
- struct fb_info *fbdev = vbox->fbdev->helper.fbdev;
-
- fbdev->fix.smem_start = fbdev->apertures->ranges[0].base + gpu_addr;
- fbdev->fix.smem_len = vbox->available_vram_size - gpu_addr;
-}
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