![Yoichi Yuasa](/assets/img/avatar_default.png)
It cannot map correctly if page fault begins from a intermediate address. [The driver prefaults the mapping, so we need to work from the correct base address not the faulting address otherwise the map appears offset by the fault offset] Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
801 lines
21 KiB
C
801 lines
21 KiB
C
/**************************************************************************
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* Copyright (c) 2007-2011, Intel Corporation.
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* All Rights Reserved.
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*
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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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*
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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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* more details.
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*
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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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**************************************************************************/
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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/slab.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/console.h>
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#include <drm/drmP.h>
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#include <drm/drm.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_fb_helper.h>
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#include "psb_drv.h"
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#include "psb_intel_reg.h"
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#include "psb_intel_drv.h"
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#include "framebuffer.h"
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#include "gtt.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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};
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#define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16)
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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 fb_info *info)
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{
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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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uint32_t v;
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if (!fb)
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return -ENOMEM;
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if (regno > 255)
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return 1;
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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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if (regno < 16) {
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switch (fb->bits_per_pixel) {
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case 16:
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((uint32_t *) info->pseudo_palette)[regno] = v;
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break;
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case 24:
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case 32:
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((uint32_t *) info->pseudo_palette)[regno] = v;
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break;
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}
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}
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return 0;
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}
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static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info)
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{
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struct psb_fbdev *fbdev = info->par;
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struct psb_framebuffer *psbfb = &fbdev->pfb;
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struct drm_device *dev = psbfb->base.dev;
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/*
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* We have to poke our nose in here. The core fb code assumes
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* panning is part of the hardware that can be invoked before
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* the actual fb is mapped. In our case that isn't quite true.
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*/
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if (psbfb->gtt->npage) {
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/* GTT roll shifts in 4K pages, we need to shift the right
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number of pages */
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int pages = info->fix.line_length >> 12;
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psb_gtt_roll(dev, psbfb->gtt, var->yoffset * pages);
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}
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return 0;
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}
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static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
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{
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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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int page_num;
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int i;
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unsigned long address;
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int ret;
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unsigned long pfn;
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/* FIXME: assumes fb at stolen base which may not be true */
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unsigned long phys_addr = (unsigned long)dev_priv->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 - (vmf->pgoff << PAGE_SHIFT);
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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);
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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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break;
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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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return ret;
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}
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address += PAGE_SIZE;
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phys_addr += PAGE_SIZE;
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}
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return VM_FAULT_NOPAGE;
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}
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static void psbfb_vm_open(struct vm_area_struct *vma)
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{
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}
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static void psbfb_vm_close(struct vm_area_struct *vma)
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{
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}
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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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};
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static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
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{
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struct psb_fbdev *fbdev = info->par;
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struct psb_framebuffer *psbfb = &fbdev->pfb;
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if (vma->vm_pgoff != 0)
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return -EINVAL;
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if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
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return -EINVAL;
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if (!psbfb->addr_space)
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psbfb->addr_space = vma->vm_file->f_mapping;
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/*
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* If this is a GEM object then info->screen_base is the virtual
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* kernel remapping of the object. FIXME: Review if this is
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* suitable for our mmap work
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*/
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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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return 0;
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}
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static int psbfb_ioctl(struct fb_info *info, unsigned int cmd,
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unsigned long arg)
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{
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return -ENOTTY;
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}
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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 = cfb_fillrect,
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.fb_copyarea = psbfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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.fb_mmap = psbfb_mmap,
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.fb_sync = psbfb_sync,
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.fb_ioctl = psbfb_ioctl,
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};
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static struct fb_ops psbfb_roll_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 = 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 = psbfb_pan,
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.fb_mmap = psbfb_mmap,
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.fb_ioctl = psbfb_ioctl,
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};
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static struct fb_ops psbfb_unaccel_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 = cfb_fillrect,
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.fb_copyarea = cfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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.fb_mmap = psbfb_mmap,
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.fb_ioctl = psbfb_ioctl,
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};
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/**
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* psb_framebuffer_init - initialize a framebuffer
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* @dev: our DRM device
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* @fb: framebuffer to set up
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* @mode_cmd: mode description
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* @gt: backing object
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*
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* Configure and fill in the boilerplate for our frame buffer. Return
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* 0 on success or an error code if we fail.
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*/
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static int psb_framebuffer_init(struct drm_device *dev,
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struct psb_framebuffer *fb,
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struct drm_mode_fb_cmd2 *mode_cmd,
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struct gtt_range *gt)
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{
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u32 bpp, depth;
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int ret;
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drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
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if (mode_cmd->pitches[0] & 63)
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return -EINVAL;
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switch (bpp) {
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case 8:
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case 16:
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case 24:
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case 32:
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break;
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default:
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return -EINVAL;
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}
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ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs);
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if (ret) {
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dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
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return ret;
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}
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drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd);
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fb->gtt = gt;
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return 0;
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}
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/**
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* psb_framebuffer_create - create a framebuffer backed by gt
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* @dev: our DRM device
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* @mode_cmd: the description of the requested mode
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* @gt: the backing object
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*
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* Create a framebuffer object backed by the gt, and fill in the
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* boilerplate required
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*
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* TODO: review object references
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*/
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static struct drm_framebuffer *psb_framebuffer_create
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(struct drm_device *dev,
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struct drm_mode_fb_cmd2 *mode_cmd,
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struct gtt_range *gt)
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{
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struct psb_framebuffer *fb;
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int ret;
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fb = kzalloc(sizeof(*fb), GFP_KERNEL);
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if (!fb)
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return ERR_PTR(-ENOMEM);
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ret = psb_framebuffer_init(dev, fb, mode_cmd, gt);
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if (ret) {
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kfree(fb);
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return ERR_PTR(ret);
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}
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return &fb->base;
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}
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/**
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* psbfb_alloc - allocate frame buffer memory
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* @dev: the DRM device
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* @aligned_size: space needed
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* @force: fall back to GEM buffers if need be
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*
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* Allocate the frame buffer. In the usual case we get a GTT range that
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* is stolen memory backed and life is simple. If there isn't sufficient
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* we fail as we don't have the virtual mapping space to really vmap it
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* and the kernel console code can't handle non linear framebuffers.
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*
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* Re-address this as and if the framebuffer layer grows this ability.
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*/
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static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
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{
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struct gtt_range *backing;
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/* Begin by trying to use stolen memory backing */
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backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1);
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if (backing) {
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if (drm_gem_private_object_init(dev,
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&backing->gem, aligned_size) == 0)
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return backing;
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psb_gtt_free_range(dev, backing);
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}
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return NULL;
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}
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/**
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* psbfb_create - create a framebuffer
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* @fbdev: the framebuffer device
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* @sizes: specification of the layout
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*
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* Create a framebuffer to the specifications provided
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*/
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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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{
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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 fb_info *info;
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struct drm_framebuffer *fb;
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struct psb_framebuffer *psbfb = &fbdev->pfb;
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struct drm_mode_fb_cmd2 mode_cmd;
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struct device *device = &dev->pdev->dev;
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int size;
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int ret;
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struct gtt_range *backing;
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u32 bpp, depth;
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int gtt_roll = 0;
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int pitch_lines = 0;
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mode_cmd.width = sizes->surface_width;
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mode_cmd.height = sizes->surface_height;
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bpp = sizes->surface_bpp;
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depth = sizes->surface_depth;
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/* No 24bit packed */
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if (bpp == 24)
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bpp = 32;
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do {
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/*
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* Acceleration via the GTT requires pitch to be
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* power of two aligned. Preferably page but less
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* is ok with some fonts
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*/
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mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines);
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size = mode_cmd.pitches[0] * mode_cmd.height;
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size = ALIGN(size, PAGE_SIZE);
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/* Allocate the fb in the GTT with stolen page backing */
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backing = psbfb_alloc(dev, size);
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if (pitch_lines)
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pitch_lines *= 2;
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else
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pitch_lines = 1;
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gtt_roll++;
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} while (backing == NULL && pitch_lines <= 16);
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/* The final pitch we accepted if we succeeded */
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pitch_lines /= 2;
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if (backing == NULL) {
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/*
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* We couldn't get the space we wanted, fall back to the
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* display engine requirement instead. The HW requires
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* the pitch to be 64 byte aligned
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*/
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gtt_roll = 0; /* Don't use GTT accelerated scrolling */
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pitch_lines = 64;
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mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64);
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size = mode_cmd.pitches[0] * mode_cmd.height;
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size = ALIGN(size, PAGE_SIZE);
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/* Allocate the framebuffer in the GTT with stolen page backing */
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backing = psbfb_alloc(dev, size);
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if (backing == NULL)
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return -ENOMEM;
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}
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mutex_lock(&dev->struct_mutex);
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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_err1;
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}
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info->par = fbdev;
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mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
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ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing);
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if (ret)
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goto out_unref;
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fb = &psbfb->base;
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psbfb->fbdev = info;
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fbdev->psb_fb_helper.fb = fb;
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fbdev->psb_fb_helper.fbdev = info;
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drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
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strcpy(info->fix.id, "psbfb");
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info->flags = FBINFO_DEFAULT;
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if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */
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info->fbops = &psbfb_ops;
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else if (gtt_roll) { /* GTT rolling seems best */
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info->fbops = &psbfb_roll_ops;
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info->flags |= FBINFO_HWACCEL_YPAN;
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} else /* Software */
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info->fbops = &psbfb_unaccel_ops;
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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_unref;
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}
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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->fix.ywrapstep = gtt_roll;
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info->fix.ypanstep = 0;
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/* Accessed stolen memory directly */
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info->screen_base = (char *)dev_priv->vram_addr +
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backing->offset;
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info->screen_size = size;
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if (dev_priv->gtt.stolen_size) {
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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_unref;
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}
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info->apertures->ranges[0].base = dev->mode_config.fb_base;
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info->apertures->ranges[0].size = dev_priv->gtt.stolen_size;
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}
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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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/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
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dev_info(dev->dev, "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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return 0;
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out_unref:
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if (backing->stolen)
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psb_gtt_free_range(dev, backing);
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else
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drm_gem_object_unreference(&backing->gem);
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out_err1:
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mutex_unlock(&dev->struct_mutex);
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psb_gtt_free_range(dev, backing);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* psb_user_framebuffer_create - create framebuffer
|
|
* @dev: our DRM device
|
|
* @filp: client file
|
|
* @cmd: mode request
|
|
*
|
|
* Create a new framebuffer backed by a userspace GEM object
|
|
*/
|
|
static struct drm_framebuffer *psb_user_framebuffer_create
|
|
(struct drm_device *dev, struct drm_file *filp,
|
|
struct drm_mode_fb_cmd2 *cmd)
|
|
{
|
|
struct gtt_range *r;
|
|
struct drm_gem_object *obj;
|
|
|
|
/*
|
|
* Find the GEM object and thus the gtt range object that is
|
|
* to back this space
|
|
*/
|
|
obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]);
|
|
if (obj == NULL)
|
|
return ERR_PTR(-ENOENT);
|
|
|
|
/* Let the core code do all the work */
|
|
r = container_of(obj, struct gtt_range, gem);
|
|
return psb_framebuffer_create(dev, cmd, r);
|
|
}
|
|
|
|
static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
|
|
u16 blue, int regno)
|
|
{
|
|
struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
|
|
|
|
intel_crtc->lut_r[regno] = red >> 8;
|
|
intel_crtc->lut_g[regno] = green >> 8;
|
|
intel_crtc->lut_b[regno] = blue >> 8;
|
|
}
|
|
|
|
static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
|
|
u16 *green, u16 *blue, int regno)
|
|
{
|
|
struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
|
|
|
|
*red = intel_crtc->lut_r[regno] << 8;
|
|
*green = intel_crtc->lut_g[regno] << 8;
|
|
*blue = intel_crtc->lut_b[regno] << 8;
|
|
}
|
|
|
|
static int psbfb_probe(struct drm_fb_helper *helper,
|
|
struct drm_fb_helper_surface_size *sizes)
|
|
{
|
|
struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
|
|
int new_fb = 0;
|
|
int ret;
|
|
|
|
if (!helper->fb) {
|
|
ret = psbfb_create(psb_fbdev, sizes);
|
|
if (ret)
|
|
return ret;
|
|
new_fb = 1;
|
|
}
|
|
return new_fb;
|
|
}
|
|
|
|
struct drm_fb_helper_funcs psb_fb_helper_funcs = {
|
|
.gamma_set = psbfb_gamma_set,
|
|
.gamma_get = psbfb_gamma_get,
|
|
.fb_probe = psbfb_probe,
|
|
};
|
|
|
|
static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
|
|
{
|
|
struct fb_info *info;
|
|
struct psb_framebuffer *psbfb = &fbdev->pfb;
|
|
|
|
if (fbdev->psb_fb_helper.fbdev) {
|
|
info = fbdev->psb_fb_helper.fbdev;
|
|
unregister_framebuffer(info);
|
|
if (info->cmap.len)
|
|
fb_dealloc_cmap(&info->cmap);
|
|
framebuffer_release(info);
|
|
}
|
|
drm_fb_helper_fini(&fbdev->psb_fb_helper);
|
|
drm_framebuffer_cleanup(&psbfb->base);
|
|
|
|
if (psbfb->gtt)
|
|
drm_gem_object_unreference(&psbfb->gtt->gem);
|
|
return 0;
|
|
}
|
|
|
|
int psb_fbdev_init(struct drm_device *dev)
|
|
{
|
|
struct psb_fbdev *fbdev;
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
|
|
fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL);
|
|
if (!fbdev) {
|
|
dev_err(dev->dev, "no memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dev_priv->fbdev = fbdev;
|
|
fbdev->psb_fb_helper.funcs = &psb_fb_helper_funcs;
|
|
|
|
drm_fb_helper_init(dev, &fbdev->psb_fb_helper, dev_priv->ops->crtcs,
|
|
INTELFB_CONN_LIMIT);
|
|
|
|
drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper);
|
|
drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32);
|
|
return 0;
|
|
}
|
|
|
|
static void psb_fbdev_fini(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
|
|
if (!dev_priv->fbdev)
|
|
return;
|
|
|
|
psb_fbdev_destroy(dev, dev_priv->fbdev);
|
|
kfree(dev_priv->fbdev);
|
|
dev_priv->fbdev = NULL;
|
|
}
|
|
|
|
static void psbfb_output_poll_changed(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev;
|
|
drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper);
|
|
}
|
|
|
|
/**
|
|
* psb_user_framebuffer_create_handle - add hamdle to a framebuffer
|
|
* @fb: framebuffer
|
|
* @file_priv: our DRM file
|
|
* @handle: returned handle
|
|
*
|
|
* Our framebuffer object is a GTT range which also contains a GEM
|
|
* object. We need to turn it into a handle for userspace. GEM will do
|
|
* the work for us
|
|
*/
|
|
static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
|
|
struct drm_file *file_priv,
|
|
unsigned int *handle)
|
|
{
|
|
struct psb_framebuffer *psbfb = to_psb_fb(fb);
|
|
struct gtt_range *r = psbfb->gtt;
|
|
return drm_gem_handle_create(file_priv, &r->gem, handle);
|
|
}
|
|
|
|
/**
|
|
* psb_user_framebuffer_destroy - destruct user created fb
|
|
* @fb: framebuffer
|
|
*
|
|
* User framebuffers are backed by GEM objects so all we have to do is
|
|
* clean up a bit and drop the reference, GEM will handle the fallout
|
|
*/
|
|
static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb)
|
|
{
|
|
struct psb_framebuffer *psbfb = to_psb_fb(fb);
|
|
struct gtt_range *r = psbfb->gtt;
|
|
struct drm_device *dev = fb->dev;
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct psb_fbdev *fbdev = dev_priv->fbdev;
|
|
struct drm_crtc *crtc;
|
|
int reset = 0;
|
|
|
|
/* Should never get stolen memory for a user fb */
|
|
WARN_ON(r->stolen);
|
|
|
|
/* Check if we are erroneously live */
|
|
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
|
|
if (crtc->fb == fb)
|
|
reset = 1;
|
|
|
|
if (reset)
|
|
/*
|
|
* Now force a sane response before we permit the DRM CRTC
|
|
* layer to do stupid things like blank the display. Instead
|
|
* we reset this framebuffer as if the user had forced a reset.
|
|
* We must do this before the cleanup so that the DRM layer
|
|
* doesn't get a chance to stick its oar in where it isn't
|
|
* wanted.
|
|
*/
|
|
drm_fb_helper_restore_fbdev_mode(&fbdev->psb_fb_helper);
|
|
|
|
/* Let DRM do its clean up */
|
|
drm_framebuffer_cleanup(fb);
|
|
/* We are no longer using the resource in GEM */
|
|
drm_gem_object_unreference_unlocked(&r->gem);
|
|
kfree(fb);
|
|
}
|
|
|
|
static const struct drm_mode_config_funcs psb_mode_funcs = {
|
|
.fb_create = psb_user_framebuffer_create,
|
|
.output_poll_changed = psbfb_output_poll_changed,
|
|
};
|
|
|
|
static int psb_create_backlight_property(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct drm_property *backlight;
|
|
|
|
if (dev_priv->backlight_property)
|
|
return 0;
|
|
|
|
backlight = drm_property_create_range(dev, 0, "backlight", 0, 100);
|
|
|
|
dev_priv->backlight_property = backlight;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void psb_setup_outputs(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct drm_connector *connector;
|
|
|
|
drm_mode_create_scaling_mode_property(dev);
|
|
psb_create_backlight_property(dev);
|
|
|
|
dev_priv->ops->output_init(dev);
|
|
|
|
list_for_each_entry(connector, &dev->mode_config.connector_list,
|
|
head) {
|
|
struct psb_intel_encoder *psb_intel_encoder =
|
|
psb_intel_attached_encoder(connector);
|
|
struct drm_encoder *encoder = &psb_intel_encoder->base;
|
|
int crtc_mask = 0, clone_mask = 0;
|
|
|
|
/* valid crtcs */
|
|
switch (psb_intel_encoder->type) {
|
|
case INTEL_OUTPUT_ANALOG:
|
|
crtc_mask = (1 << 0);
|
|
clone_mask = (1 << INTEL_OUTPUT_ANALOG);
|
|
break;
|
|
case INTEL_OUTPUT_SDVO:
|
|
crtc_mask = ((1 << 0) | (1 << 1));
|
|
clone_mask = (1 << INTEL_OUTPUT_SDVO);
|
|
break;
|
|
case INTEL_OUTPUT_LVDS:
|
|
if (IS_MRST(dev))
|
|
crtc_mask = (1 << 0);
|
|
else
|
|
crtc_mask = (1 << 1);
|
|
clone_mask = (1 << INTEL_OUTPUT_LVDS);
|
|
break;
|
|
case INTEL_OUTPUT_MIPI:
|
|
crtc_mask = (1 << 0);
|
|
clone_mask = (1 << INTEL_OUTPUT_MIPI);
|
|
break;
|
|
case INTEL_OUTPUT_MIPI2:
|
|
crtc_mask = (1 << 2);
|
|
clone_mask = (1 << INTEL_OUTPUT_MIPI2);
|
|
break;
|
|
case INTEL_OUTPUT_HDMI:
|
|
if (IS_MFLD(dev))
|
|
crtc_mask = (1 << 1);
|
|
else
|
|
crtc_mask = (1 << 0);
|
|
clone_mask = (1 << INTEL_OUTPUT_HDMI);
|
|
break;
|
|
}
|
|
encoder->possible_crtcs = crtc_mask;
|
|
encoder->possible_clones =
|
|
psb_intel_connector_clones(dev, clone_mask);
|
|
}
|
|
}
|
|
|
|
void psb_modeset_init(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
|
|
int i;
|
|
|
|
drm_mode_config_init(dev);
|
|
|
|
dev->mode_config.min_width = 0;
|
|
dev->mode_config.min_height = 0;
|
|
|
|
dev->mode_config.funcs = (void *) &psb_mode_funcs;
|
|
|
|
/* set memory base */
|
|
/* Oaktrail and Poulsbo should use BAR 2*/
|
|
pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *)
|
|
&(dev->mode_config.fb_base));
|
|
|
|
/* num pipes is 2 for PSB but 1 for Mrst */
|
|
for (i = 0; i < dev_priv->num_pipe; i++)
|
|
psb_intel_crtc_init(dev, i, mode_dev);
|
|
|
|
dev->mode_config.max_width = 2048;
|
|
dev->mode_config.max_height = 2048;
|
|
|
|
psb_setup_outputs(dev);
|
|
}
|
|
|
|
void psb_modeset_cleanup(struct drm_device *dev)
|
|
{
|
|
mutex_lock(&dev->struct_mutex);
|
|
|
|
drm_kms_helper_poll_fini(dev);
|
|
psb_fbdev_fini(dev);
|
|
drm_mode_config_cleanup(dev);
|
|
|
|
mutex_unlock(&dev->struct_mutex);
|
|
}
|