268 lines
6.9 KiB
C
268 lines
6.9 KiB
C
/*
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* Copyright © 2007 David Airlie
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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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 NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* David Airlie
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/tty.h>
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#include <linux/sysrq.h>
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#include <linux/delay.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/vga_switcheroo.h>
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#include "drmP.h"
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#include "drm.h"
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#include "drm_crtc.h"
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#include "drm_fb_helper.h"
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#include "intel_drv.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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static struct fb_ops intelfb_ops = {
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.owner = THIS_MODULE,
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.fb_check_var = drm_fb_helper_check_var,
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.fb_set_par = drm_fb_helper_set_par,
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.fb_fillrect = cfb_fillrect,
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.fb_copyarea = cfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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.fb_pan_display = drm_fb_helper_pan_display,
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.fb_blank = drm_fb_helper_blank,
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.fb_setcmap = drm_fb_helper_setcmap,
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.fb_debug_enter = drm_fb_helper_debug_enter,
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.fb_debug_leave = drm_fb_helper_debug_leave,
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};
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static int intelfb_create(struct intel_fbdev *ifbdev,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct drm_device *dev = ifbdev->helper.dev;
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struct fb_info *info;
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struct drm_framebuffer *fb;
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struct drm_mode_fb_cmd mode_cmd;
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struct drm_i915_gem_object *obj;
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struct device *device = &dev->pdev->dev;
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int size, ret;
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/* we don't do packed 24bpp */
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if (sizes->surface_bpp == 24)
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sizes->surface_bpp = 32;
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mode_cmd.width = sizes->surface_width;
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mode_cmd.height = sizes->surface_height;
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mode_cmd.bpp = sizes->surface_bpp;
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mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
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mode_cmd.depth = sizes->surface_depth;
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size = mode_cmd.pitch * mode_cmd.height;
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size = ALIGN(size, PAGE_SIZE);
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obj = i915_gem_alloc_object(dev, size);
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if (!obj) {
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DRM_ERROR("failed to allocate framebuffer\n");
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ret = -ENOMEM;
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goto out;
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}
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mutex_lock(&dev->struct_mutex);
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/* Flush everything out, we'll be doing GTT only from now on */
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ret = intel_pin_and_fence_fb_obj(dev, obj, false);
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if (ret) {
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DRM_ERROR("failed to pin fb: %d\n", ret);
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goto out_unref;
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}
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info = framebuffer_alloc(0, device);
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if (!info) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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info->par = ifbdev;
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ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
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if (ret)
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goto out_unpin;
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fb = &ifbdev->ifb.base;
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ifbdev->helper.fb = fb;
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ifbdev->helper.fbdev = info;
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strcpy(info->fix.id, "inteldrmfb");
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info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
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info->fbops = &intelfb_ops;
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/* setup aperture base/size for vesafb takeover */
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info->apertures = alloc_apertures(1);
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if (!info->apertures) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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info->apertures->ranges[0].base = dev->mode_config.fb_base;
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if (!IS_GEN2(dev))
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info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2);
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else
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info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0);
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info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
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info->fix.smem_len = size;
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info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
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if (!info->screen_base) {
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ret = -ENOSPC;
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goto out_unpin;
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}
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ret = fb_alloc_cmap(&info->cmap, 256, 0);
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if (ret) {
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ret = -ENOMEM;
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goto out_unpin;
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}
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info->screen_size = size;
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// memset(info->screen_base, 0, size);
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drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
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info->pixmap.size = 64*1024;
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info->pixmap.buf_align = 8;
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info->pixmap.access_align = 32;
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info->pixmap.flags = FB_PIXMAP_SYSTEM;
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info->pixmap.scan_align = 1;
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DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
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fb->width, fb->height,
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obj->gtt_offset, obj);
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mutex_unlock(&dev->struct_mutex);
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vga_switcheroo_client_fb_set(dev->pdev, info);
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return 0;
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out_unpin:
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i915_gem_object_unpin(obj);
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out_unref:
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drm_gem_object_unreference(&obj->base);
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mutex_unlock(&dev->struct_mutex);
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out:
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return ret;
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}
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static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
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int new_fb = 0;
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int ret;
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if (!helper->fb) {
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ret = intelfb_create(ifbdev, sizes);
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if (ret)
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return ret;
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new_fb = 1;
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}
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return new_fb;
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}
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static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
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.gamma_set = intel_crtc_fb_gamma_set,
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.gamma_get = intel_crtc_fb_gamma_get,
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.fb_probe = intel_fb_find_or_create_single,
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};
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static void intel_fbdev_destroy(struct drm_device *dev,
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struct intel_fbdev *ifbdev)
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{
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struct fb_info *info;
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struct intel_framebuffer *ifb = &ifbdev->ifb;
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if (ifbdev->helper.fbdev) {
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info = ifbdev->helper.fbdev;
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unregister_framebuffer(info);
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iounmap(info->screen_base);
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if (info->cmap.len)
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fb_dealloc_cmap(&info->cmap);
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framebuffer_release(info);
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}
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drm_fb_helper_fini(&ifbdev->helper);
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drm_framebuffer_cleanup(&ifb->base);
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if (ifb->obj) {
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drm_gem_object_unreference_unlocked(&ifb->obj->base);
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ifb->obj = NULL;
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}
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}
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int intel_fbdev_init(struct drm_device *dev)
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{
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struct intel_fbdev *ifbdev;
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drm_i915_private_t *dev_priv = dev->dev_private;
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int ret;
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ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
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if (!ifbdev)
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return -ENOMEM;
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dev_priv->fbdev = ifbdev;
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ifbdev->helper.funcs = &intel_fb_helper_funcs;
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ret = drm_fb_helper_init(dev, &ifbdev->helper,
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dev_priv->num_pipe,
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INTELFB_CONN_LIMIT);
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if (ret) {
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kfree(ifbdev);
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return ret;
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}
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drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
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drm_fb_helper_initial_config(&ifbdev->helper, 32);
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return 0;
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}
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void intel_fbdev_fini(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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if (!dev_priv->fbdev)
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return;
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intel_fbdev_destroy(dev, dev_priv->fbdev);
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kfree(dev_priv->fbdev);
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dev_priv->fbdev = NULL;
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}
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MODULE_LICENSE("GPL and additional rights");
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void intel_fb_output_poll_changed(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
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}
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