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/**************************************************************************
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* Copyright (c) 2007, Intel Corporation.
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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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/tty.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/console.h>
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#include <drm/drm_crtc.h>
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#include "psb_intel_reg.h"
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#include "psb_intel_drv.h"
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#include "psb_ttm_userobj_api.h"
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#include "psb_pvr_glue.h"
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static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb);
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static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
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struct drm_file *file_priv,
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unsigned int *handle);
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static const struct drm_framebuffer_funcs psb_fb_funcs = {
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.destroy = psb_user_framebuffer_destroy,
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.create_handle = psb_user_framebuffer_create_handle,
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#define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16)
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void *psbfb_vdc_reg(struct drm_device *dev)
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struct drm_psb_private *dev_priv;
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dev_priv = (struct drm_psb_private *) dev->dev_private;
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return dev_priv->vdc_reg;
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/*EXPORT_SYMBOL(psbfb_vdc_reg); */
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static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green,
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unsigned blue, unsigned transp,
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struct psb_fbdev *fbdev = info->par;
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struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb;
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red = CMAP_TOHW(red, info->var.red.length);
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blue = CMAP_TOHW(blue, info->var.blue.length);
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green = CMAP_TOHW(green, info->var.green.length);
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transp = CMAP_TOHW(transp, info->var.transp.length);
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v = (red << info->var.red.offset) |
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(green << info->var.green.offset) |
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(blue << info->var.blue.offset) |
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(transp << info->var.transp.offset);
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switch (fb->bits_per_pixel) {
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((uint32_t *) info->pseudo_palette)[regno] = v;
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((uint32_t *) info->pseudo_palette)[regno] = v;
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static int psbfb_kms_off(struct drm_device *dev, int suspend)
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struct drm_framebuffer *fb = 0;
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struct psb_framebuffer *psbfb = to_psb_fb(fb);
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DRM_DEBUG("psbfb_kms_off_ioctl\n");
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mutex_lock(&dev->mode_config.mutex);
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list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
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struct fb_info *info = psbfb->fbdev;
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fb_set_suspend(info, 1);
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drm_fb_helper_blank(FB_BLANK_POWERDOWN, info);
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mutex_unlock(&dev->mode_config.mutex);
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int psbfb_kms_off_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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ret = psbfb_kms_off(dev, 0);
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static int psbfb_kms_on(struct drm_device *dev, int resume)
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struct drm_framebuffer *fb = 0;
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struct psb_framebuffer *psbfb = to_psb_fb(fb);
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DRM_DEBUG("psbfb_kms_on_ioctl\n");
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mutex_lock(&dev->mode_config.mutex);
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list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
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struct fb_info *info = psbfb->fbdev;
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fb_set_suspend(info, 0);
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drm_fb_helper_blank(FB_BLANK_UNBLANK, info);
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mutex_unlock(&dev->mode_config.mutex);
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int psbfb_kms_on_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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ret = psbfb_kms_on(dev, 0);
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drm_helper_disable_unused_functions(dev);
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void psbfb_suspend(struct drm_device *dev)
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psbfb_kms_off(dev, 1);
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void psbfb_resume(struct drm_device *dev)
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psbfb_kms_on(dev, 1);
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drm_helper_disable_unused_functions(dev);
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static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
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unsigned long address = 0;
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struct psb_framebuffer *psbfb = vma->vm_private_data;
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struct drm_device *dev = psbfb->base.dev;
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struct drm_psb_private *dev_priv = dev->dev_private;
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struct psb_gtt *pg = dev_priv->pg;
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unsigned long phys_addr = (unsigned long)pg->stolen_base;;
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page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
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address = (unsigned long)vmf->virtual_address;
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vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
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for (i = 0; i < page_num; i++) {
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pfn = (phys_addr >> PAGE_SHIFT); /* phys_to_pfn(phys_addr); */
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ret = vm_insert_mixed(vma, address, pfn);
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if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0)))
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else if (unlikely(ret != 0)) {
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ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS;
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address += PAGE_SIZE;
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phys_addr += PAGE_SIZE;
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return VM_FAULT_NOPAGE;
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static void psbfb_vm_open(struct vm_area_struct *vma)
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DRM_DEBUG("vm_open\n");
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static void psbfb_vm_close(struct vm_area_struct *vma)
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DRM_DEBUG("vm_close\n");
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static struct vm_operations_struct psbfb_vm_ops = {
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.fault = psbfb_vm_fault,
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.open = psbfb_vm_open,
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.close = psbfb_vm_close
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static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
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struct psb_fbdev *fbdev = info->par;
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struct psb_framebuffer *psbfb = fbdev->pfb;
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char *fb_screen_base = NULL;
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struct drm_device *dev = psbfb->base.dev;
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struct drm_psb_private *dev_priv = dev->dev_private;
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struct psb_gtt *pg = dev_priv->pg;
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if (vma->vm_pgoff != 0)
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if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
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if (!psbfb->addr_space)
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psbfb->addr_space = vma->vm_file->f_mapping;
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fb_screen_base = (char *)info->screen_base;
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DRM_DEBUG("vm_pgoff 0x%lx, screen base %p vram_addr %p\n",
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vma->vm_pgoff, fb_screen_base, pg->vram_addr);
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/*if using stolen memory, */
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if (fb_screen_base == pg->vram_addr) {
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vma->vm_ops = &psbfb_vm_ops;
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vma->vm_private_data = (void *)psbfb;
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vma->vm_flags |= VM_RESERVED | VM_IO |
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VM_MIXEDMAP | VM_DONTEXPAND;
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/*using IMG meminfo, can I use pvrmmap to map it?*/
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static struct fb_ops psbfb_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_blank = drm_fb_helper_blank,
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.fb_setcolreg = psbfb_setcolreg,
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.fb_fillrect = psbfb_fillrect,
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.fb_copyarea = psbfb_copyarea,
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.fb_imageblit = psbfb_imageblit,
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.fb_mmap = psbfb_mmap,
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.fb_sync = psbfb_sync,
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static struct drm_framebuffer *psb_framebuffer_create
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(struct drm_device *dev, struct drm_mode_fb_cmd *r,
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struct psb_framebuffer *fb;
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fb = kzalloc(sizeof(*fb), GFP_KERNEL);
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ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs);
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drm_helper_mode_fill_fb_struct(&fb->base, r);
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static struct drm_framebuffer *psb_user_framebuffer_create
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(struct drm_device *dev, struct drm_file *filp,
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struct drm_mode_fb_cmd *r)
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struct ttm_buffer_object *bo = NULL;
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bo = ttm_buffer_object_lookup(psb_fpriv(filp)->tfile, r->handle);
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/* JB: TODO not drop, make smarter */
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size = ((uint64_t) bo->num_pages) << PAGE_SHIFT;
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if (size < r->width * r->height * 4)
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/* JB: TODO not drop, refcount buffer */
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return psb_framebuffer_create(dev, r, bo);
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struct psb_framebuffer *psbfb;
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struct drm_framebuffer *fb;
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struct fb_info *info;
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void *psKernelMemInfo = NULL;
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void * hKernelMemInfo = (void *)r->handle;
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struct drm_psb_private *dev_priv
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= (struct drm_psb_private *)dev->dev_private;
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struct psb_fbdev *fbdev = dev_priv->fbdev;
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struct psb_gtt *pg = dev_priv->pg;
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ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
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DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
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(u32)hKernelMemInfo);
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DRM_DEBUG("Got Kernel MemInfo for handle %lx\n",
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(u32)hKernelMemInfo);
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/* JB: TODO not drop, make smarter */
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size = psKernelMemInfo->ui32AllocSize;
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if (size < r->height * r->pitch)
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/* JB: TODO not drop, refcount buffer */
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/* return psb_framebuffer_create(dev, r, bo); */
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fb = psb_framebuffer_create(dev, r, (void *)psKernelMemInfo);
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DRM_ERROR("failed to allocate fb.\n");
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psbfb = to_psb_fb(fb);
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psbfb->hKernelMemInfo = hKernelMemInfo;
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DRM_DEBUG("Mapping to gtt..., KernelMemInfo %p\n", psKernelMemInfo);
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/*if not VRAM, map it into tt aperture*/
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if (psKernelMemInfo->pvLinAddrKM != pg->vram_addr) {
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ret = psb_gtt_map_meminfo(dev, hKernelMemInfo, &offset);
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DRM_ERROR("map meminfo for 0x%x failed\n",
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(u32)hKernelMemInfo);
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psbfb->offset = (offset << PAGE_SHIFT);
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info = framebuffer_alloc(0, &dev->pdev->dev);
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strcpy(info->fix.id, "psbfb");
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info->flags = FBINFO_DEFAULT;
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info->fix.accel = FB_ACCEL_I830; /*FIXMEAC*/
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info->fbops = &psbfb_ops;
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info->fix.smem_start = dev->mode_config.fb_base;
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info->fix.smem_len = size;
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info->screen_base = psKernelMemInfo->pvLinAddrKM;
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info->screen_size = size;
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drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
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drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
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fb->width, fb->height);
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info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
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info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
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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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fbdev->psb_fb_helper.fb = fb;
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fbdev->psb_fb_helper.fbdev = info;
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MRSTLFBHandleChangeFB(dev, psbfb);
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static int psbfb_create(struct psb_fbdev *fbdev,
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struct drm_fb_helper_surface_size *sizes)
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struct drm_device *dev = fbdev->psb_fb_helper.dev;
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struct drm_psb_private *dev_priv = dev->dev_private;
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struct psb_gtt *pg = dev_priv->pg;
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struct fb_info *info;
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struct drm_framebuffer *fb;
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struct psb_framebuffer *psbfb;
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struct drm_mode_fb_cmd mode_cmd;
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struct device *device = &dev->pdev->dev;
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struct ttm_buffer_object *fbo = NULL;
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int size, aligned_size;
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mode_cmd.width = sizes->surface_width;
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mode_cmd.height = sizes->surface_height;
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/* HW requires pitch to be 64 byte aligned */
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mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
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size = mode_cmd.pitch * mode_cmd.height;
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aligned_size = ALIGN(size, PAGE_SIZE);
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mutex_lock(&dev->struct_mutex);
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fb = psb_framebuffer_create(dev, &mode_cmd, fbo);
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DRM_ERROR("failed to allocate fb.\n");
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psbfb = to_psb_fb(fb);
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info = framebuffer_alloc(sizeof(struct psb_fbdev), device);
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fbdev->psb_fb_helper.fb = fb;
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fbdev->psb_fb_helper.fbdev = info;
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strcpy(info->fix.id, "psbfb");
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info->flags = FBINFO_DEFAULT;
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info->fbops = &psbfb_ops;
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info->fix.smem_start = dev->mode_config.fb_base;
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info->fix.smem_len = size;
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info->screen_base = (char *)pg->vram_addr;
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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_fix(info, fb->pitch, fb->depth);
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drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
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sizes->fb_width, sizes->fb_height);
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info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
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info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
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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("fb depth is %d\n", fb->depth);
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DRM_DEBUG(" pitch is %d\n", fb->pitch);
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printk(KERN_INFO"allocated %dx%d fb\n",
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psbfb->base.width, psbfb->base.height);
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mutex_unlock(&dev->struct_mutex);
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fb->funcs->destroy(fb);
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mutex_unlock(&dev->struct_mutex);
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static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
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DRM_DEBUG("%s\n", __func__);
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static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
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u16 *green, u16 *blue, int regno)
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DRM_DEBUG("%s\n", __func__);
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static int psbfb_probe(struct drm_fb_helper *helper,
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struct drm_fb_helper_surface_size *sizes)
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struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
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DRM_DEBUG("%s\n", __func__);
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ret = psbfb_create(psb_fbdev, sizes);
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struct drm_fb_helper_funcs psb_fb_helper_funcs = {
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.gamma_set = psbfb_gamma_set,
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.gamma_get = psbfb_gamma_get,
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.fb_probe = psbfb_probe,
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int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
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struct fb_info *info;
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struct psb_framebuffer *psbfb = fbdev->pfb;
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if (fbdev->psb_fb_helper.fbdev) {
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info = fbdev->psb_fb_helper.fbdev;
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unregister_framebuffer(info);
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iounmap(info->screen_base);
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framebuffer_release(info);
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drm_fb_helper_fini(&fbdev->psb_fb_helper);
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drm_framebuffer_cleanup(&psbfb->base);
576
int psb_fbdev_init(struct drm_device *dev)
578
struct psb_fbdev *fbdev;
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struct drm_psb_private *dev_priv = dev->dev_private;
582
fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL);
584
DRM_ERROR("no memory\n");
588
dev_priv->fbdev = fbdev;
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fbdev->psb_fb_helper.funcs = &psb_fb_helper_funcs;
593
drm_fb_helper_init(dev, &fbdev->psb_fb_helper, num_crtc,
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drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper);
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drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32);
601
void psb_fbdev_fini(struct drm_device *dev)
603
struct drm_psb_private *dev_priv = dev->dev_private;
605
if (!dev_priv->fbdev)
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psb_fbdev_destroy(dev, dev_priv->fbdev);
609
kfree(dev_priv->fbdev);
610
dev_priv->fbdev = NULL;
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static void psbfb_output_poll_changed(struct drm_device *dev)
616
struct drm_psb_private *dev_priv = dev->dev_private;
617
struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev;
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drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper);
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int psbfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
623
struct fb_info *info;
624
struct psb_framebuffer *psbfb = to_psb_fb(fb);
633
framebuffer_release(info);
636
/*EXPORT_SYMBOL(psbfb_remove); */
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static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
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struct drm_file *file_priv,
640
unsigned int *handle)
642
/* JB: TODO currently we can't go from a bo to a handle with ttm */
648
static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb)
650
struct drm_device *dev = fb->dev;
651
struct psb_framebuffer *psbfb = to_psb_fb(fb);
654
psb_gtt_unmap_meminfo(dev, psbfb->hKernelMemInfo);
656
psbfb_remove(dev, fb);
658
/* JB: TODO not drop, refcount buffer */
659
drm_framebuffer_cleanup(fb);
663
static const struct drm_mode_config_funcs psb_mode_funcs = {
664
.fb_create = psb_user_framebuffer_create,
665
.output_poll_changed = psbfb_output_poll_changed,
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static int psb_create_backlight_property(struct drm_device *dev)
670
struct drm_psb_private *dev_priv
671
= (struct drm_psb_private *) dev->dev_private;
672
struct drm_property *backlight;
674
if (dev_priv->backlight_property)
677
backlight = drm_property_create(dev,
681
backlight->values[0] = 0;
682
backlight->values[1] = 100;
684
dev_priv->backlight_property = backlight;
689
static void psb_setup_outputs(struct drm_device *dev)
691
struct drm_psb_private *dev_priv =
692
(struct drm_psb_private *) dev->dev_private;
693
struct drm_connector *connector;
695
PSB_DEBUG_ENTRY("\n");
697
drm_mode_create_scaling_mode_property(dev);
699
psb_create_backlight_property(dev);
701
psb_intel_lvds_init(dev, &dev_priv->mode_dev);
702
/* psb_intel_sdvo_init(dev, SDVOB); */
704
list_for_each_entry(connector, &dev->mode_config.connector_list,
706
struct psb_intel_output *psb_intel_output =
707
to_psb_intel_output(connector);
708
struct drm_encoder *encoder = &psb_intel_output->enc;
709
int crtc_mask = 0, clone_mask = 0;
712
switch (psb_intel_output->type) {
713
case INTEL_OUTPUT_SDVO:
714
crtc_mask = ((1 << 0) | (1 << 1));
715
clone_mask = (1 << INTEL_OUTPUT_SDVO);
717
case INTEL_OUTPUT_LVDS:
718
PSB_DEBUG_ENTRY("LVDS.\n");
719
crtc_mask = (1 << 1);
720
clone_mask = (1 << INTEL_OUTPUT_LVDS);
722
case INTEL_OUTPUT_MIPI:
723
PSB_DEBUG_ENTRY("MIPI.\n");
724
crtc_mask = (1 << 0);
725
clone_mask = (1 << INTEL_OUTPUT_MIPI);
727
case INTEL_OUTPUT_MIPI2:
728
PSB_DEBUG_ENTRY("MIPI2.\n");
729
crtc_mask = (1 << 2);
730
clone_mask = (1 << INTEL_OUTPUT_MIPI2);
732
case INTEL_OUTPUT_HDMI:
733
PSB_DEBUG_ENTRY("HDMI.\n");
734
crtc_mask = (1 << 1);
735
clone_mask = (1 << INTEL_OUTPUT_HDMI);
739
encoder->possible_crtcs = crtc_mask;
740
encoder->possible_clones =
741
psb_intel_connector_clones(dev, clone_mask);
746
static void *psb_bo_from_handle(struct drm_device *dev,
747
struct drm_file *file_priv,
750
void *psKernelMemInfo = NULL;
751
void * hKernelMemInfo = (void *)handle;
754
ret = psb_get_meminfo_by_handle(hKernelMemInfo, &psKernelMemInfo);
756
DRM_ERROR("Cannot get meminfo for handle 0x%x\n",
757
(u32)hKernelMemInfo);
761
return (void *)psKernelMemInfo;
764
static size_t psb_bo_size(struct drm_device *dev, void *bof)
767
void *psKernelMemInfo = (void *)bof;
768
return (size_t)psKernelMemInfo->ui32AllocSize;
774
static size_t psb_bo_offset(struct drm_device *dev, void *bof)
776
struct psb_framebuffer *psbfb
777
= (struct psb_framebuffer *)bof;
779
return (size_t)psbfb->offset;
782
static int psb_bo_pin_for_scanout(struct drm_device *dev, void *bo)
787
static int psb_bo_unpin_for_scanout(struct drm_device *dev, void *bo)
792
void psb_modeset_init(struct drm_device *dev)
794
struct drm_psb_private *dev_priv =
795
(struct drm_psb_private *) dev->dev_private;
796
struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
799
PSB_DEBUG_ENTRY("\n");
800
/* Init mm functions */
801
mode_dev->bo_from_handle = psb_bo_from_handle;
802
mode_dev->bo_size = psb_bo_size;
803
mode_dev->bo_offset = psb_bo_offset;
804
mode_dev->bo_pin_for_scanout = psb_bo_pin_for_scanout;
805
mode_dev->bo_unpin_for_scanout = psb_bo_unpin_for_scanout;
807
drm_mode_config_init(dev);
809
dev->mode_config.min_width = 0;
810
dev->mode_config.min_height = 0;
812
dev->mode_config.funcs = (void *) &psb_mode_funcs;
814
/* set memory base */
815
/* MRST and PSB should use BAR 2*/
816
pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *)
817
&(dev->mode_config.fb_base));
819
/* num pipes is 2 for PSB but 1 for Mrst */
820
for (i = 0; i < dev_priv->num_pipe; i++)
821
psb_intel_crtc_init(dev, i, mode_dev);
823
dev->mode_config.max_width = 2048;
824
dev->mode_config.max_height = 2048;
826
psb_setup_outputs(dev);
829
/* drm_initial_config(dev); */
832
void psb_modeset_cleanup(struct drm_device *dev)
834
mutex_lock(&dev->struct_mutex);
836
drm_kms_helper_poll_fini(dev);
839
drm_mode_config_cleanup(dev);
841
mutex_unlock(&dev->struct_mutex);