14d8d096eSAlan Cox /************************************************************************** 24d8d096eSAlan Cox * Copyright (c) 2007-2011, Intel Corporation. 34d8d096eSAlan Cox * All Rights Reserved. 44d8d096eSAlan Cox * 54d8d096eSAlan Cox * This program is free software; you can redistribute it and/or modify it 64d8d096eSAlan Cox * under the terms and conditions of the GNU General Public License, 74d8d096eSAlan Cox * version 2, as published by the Free Software Foundation. 84d8d096eSAlan Cox * 94d8d096eSAlan Cox * This program is distributed in the hope it will be useful, but WITHOUT 104d8d096eSAlan Cox * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 114d8d096eSAlan Cox * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 124d8d096eSAlan Cox * more details. 134d8d096eSAlan Cox * 144d8d096eSAlan Cox * You should have received a copy of the GNU General Public License along with 154d8d096eSAlan Cox * this program; if not, write to the Free Software Foundation, Inc., 164d8d096eSAlan Cox * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 174d8d096eSAlan Cox * 184d8d096eSAlan Cox **************************************************************************/ 194d8d096eSAlan Cox 204d8d096eSAlan Cox #include <linux/console.h> 210c7b178aSSam Ravnborg #include <linux/delay.h> 220c7b178aSSam Ravnborg #include <linux/errno.h> 230c7b178aSSam Ravnborg #include <linux/init.h> 240c7b178aSSam Ravnborg #include <linux/kernel.h> 250c7b178aSSam Ravnborg #include <linux/mm.h> 260c7b178aSSam Ravnborg #include <linux/module.h> 270c7b178aSSam Ravnborg #include <linux/pfn_t.h> 280c7b178aSSam Ravnborg #include <linux/slab.h> 290c7b178aSSam Ravnborg #include <linux/string.h> 300c7b178aSSam Ravnborg #include <linux/tty.h> 314d8d096eSAlan Cox 324d8d096eSAlan Cox #include <drm/drm.h> 334d8d096eSAlan Cox #include <drm/drm_crtc.h> 34a9a644acSDave Airlie #include <drm/drm_fb_helper.h> 350c7b178aSSam Ravnborg #include <drm/drm_fourcc.h> 36bc61c975SDaniel Stone #include <drm/drm_gem_framebuffer_helper.h> 374d8d096eSAlan Cox 384d8d096eSAlan Cox #include "framebuffer.h" 39a6ba582dSAlan Cox #include "gtt.h" 400c7b178aSSam Ravnborg #include "psb_drv.h" 410c7b178aSSam Ravnborg #include "psb_intel_drv.h" 420c7b178aSSam Ravnborg #include "psb_intel_reg.h" 434d8d096eSAlan Cox 444d8d096eSAlan Cox static const struct drm_framebuffer_funcs psb_fb_funcs = { 45bc61c975SDaniel Stone .destroy = drm_gem_fb_destroy, 46bc61c975SDaniel Stone .create_handle = drm_gem_fb_create_handle, 474d8d096eSAlan Cox }; 484d8d096eSAlan Cox 494d8d096eSAlan Cox #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16) 504d8d096eSAlan Cox 514d8d096eSAlan Cox static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green, 524d8d096eSAlan Cox unsigned blue, unsigned transp, 534d8d096eSAlan Cox struct fb_info *info) 544d8d096eSAlan Cox { 554d8d096eSAlan Cox struct psb_fbdev *fbdev = info->par; 564d8d096eSAlan Cox struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb; 574d8d096eSAlan Cox uint32_t v; 584d8d096eSAlan Cox 594d8d096eSAlan Cox if (!fb) 604d8d096eSAlan Cox return -ENOMEM; 614d8d096eSAlan Cox 624d8d096eSAlan Cox if (regno > 255) 634d8d096eSAlan Cox return 1; 644d8d096eSAlan Cox 654d8d096eSAlan Cox red = CMAP_TOHW(red, info->var.red.length); 664d8d096eSAlan Cox blue = CMAP_TOHW(blue, info->var.blue.length); 674d8d096eSAlan Cox green = CMAP_TOHW(green, info->var.green.length); 684d8d096eSAlan Cox transp = CMAP_TOHW(transp, info->var.transp.length); 694d8d096eSAlan Cox 704d8d096eSAlan Cox v = (red << info->var.red.offset) | 714d8d096eSAlan Cox (green << info->var.green.offset) | 724d8d096eSAlan Cox (blue << info->var.blue.offset) | 734d8d096eSAlan Cox (transp << info->var.transp.offset); 744d8d096eSAlan Cox 754d8d096eSAlan Cox if (regno < 16) { 76272725c7SVille Syrjälä switch (fb->format->cpp[0] * 8) { 774d8d096eSAlan Cox case 16: 784d8d096eSAlan Cox ((uint32_t *) info->pseudo_palette)[regno] = v; 794d8d096eSAlan Cox break; 804d8d096eSAlan Cox case 24: 814d8d096eSAlan Cox case 32: 824d8d096eSAlan Cox ((uint32_t *) info->pseudo_palette)[regno] = v; 834d8d096eSAlan Cox break; 844d8d096eSAlan Cox } 854d8d096eSAlan Cox } 864d8d096eSAlan Cox 874d8d096eSAlan Cox return 0; 884d8d096eSAlan Cox } 894d8d096eSAlan Cox 90a6ba582dSAlan Cox static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info) 91a6ba582dSAlan Cox { 92a6ba582dSAlan Cox struct psb_fbdev *fbdev = info->par; 93a6ba582dSAlan Cox struct psb_framebuffer *psbfb = &fbdev->pfb; 94a6ba582dSAlan Cox struct drm_device *dev = psbfb->base.dev; 95bc61c975SDaniel Stone struct gtt_range *gtt = to_gtt_range(psbfb->base.obj[0]); 96a6ba582dSAlan Cox 97a6ba582dSAlan Cox /* 98a6ba582dSAlan Cox * We have to poke our nose in here. The core fb code assumes 99a6ba582dSAlan Cox * panning is part of the hardware that can be invoked before 100a6ba582dSAlan Cox * the actual fb is mapped. In our case that isn't quite true. 101a6ba582dSAlan Cox */ 102bc61c975SDaniel Stone if (gtt->npage) { 103a6ba582dSAlan Cox /* GTT roll shifts in 4K pages, we need to shift the right 104a6ba582dSAlan Cox number of pages */ 105a6ba582dSAlan Cox int pages = info->fix.line_length >> 12; 106bc61c975SDaniel Stone psb_gtt_roll(dev, gtt, var->yoffset * pages); 107a6ba582dSAlan Cox } 108a6ba582dSAlan Cox return 0; 109a6ba582dSAlan Cox } 1104d8d096eSAlan Cox 1110edf6813SSouptick Joarder static vm_fault_t psbfb_vm_fault(struct vm_fault *vmf) 1124d8d096eSAlan Cox { 11311bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 1144d8d096eSAlan Cox struct psb_framebuffer *psbfb = vma->vm_private_data; 1154d8d096eSAlan Cox struct drm_device *dev = psbfb->base.dev; 1164d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 117bc61c975SDaniel Stone struct gtt_range *gtt = to_gtt_range(psbfb->base.obj[0]); 1184d8d096eSAlan Cox int page_num; 1194d8d096eSAlan Cox int i; 1204d8d096eSAlan Cox unsigned long address; 1210edf6813SSouptick Joarder vm_fault_t ret = VM_FAULT_SIGBUS; 1224d8d096eSAlan Cox unsigned long pfn; 12361bb3feaSPatrik Jakobsson unsigned long phys_addr = (unsigned long)dev_priv->stolen_base + 124bc61c975SDaniel Stone gtt->offset; 1254d8d096eSAlan Cox 126024b6a63SShyam Saini page_num = vma_pages(vma); 1271a29d85eSJan Kara address = vmf->address - (vmf->pgoff << PAGE_SHIFT); 1284d8d096eSAlan Cox 1294d8d096eSAlan Cox vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 1304d8d096eSAlan Cox 1314d8d096eSAlan Cox for (i = 0; i < page_num; i++) { 1324d8d096eSAlan Cox pfn = (phys_addr >> PAGE_SHIFT); 1334d8d096eSAlan Cox 1340edf6813SSouptick Joarder ret = vmf_insert_mixed(vma, address, 13501c8f1c4SDan Williams __pfn_to_pfn_t(pfn, PFN_DEV)); 1360edf6813SSouptick Joarder if (unlikely(ret & VM_FAULT_ERROR)) 1374d8d096eSAlan Cox break; 1384d8d096eSAlan Cox address += PAGE_SIZE; 1394d8d096eSAlan Cox phys_addr += PAGE_SIZE; 1404d8d096eSAlan Cox } 1410edf6813SSouptick Joarder return ret; 1424d8d096eSAlan Cox } 1434d8d096eSAlan Cox 1444d8d096eSAlan Cox static void psbfb_vm_open(struct vm_area_struct *vma) 1454d8d096eSAlan Cox { 1464d8d096eSAlan Cox } 1474d8d096eSAlan Cox 1484d8d096eSAlan Cox static void psbfb_vm_close(struct vm_area_struct *vma) 1494d8d096eSAlan Cox { 1504d8d096eSAlan Cox } 1514d8d096eSAlan Cox 15278b68556SLaurent Pinchart static const struct vm_operations_struct psbfb_vm_ops = { 1534d8d096eSAlan Cox .fault = psbfb_vm_fault, 1544d8d096eSAlan Cox .open = psbfb_vm_open, 1554d8d096eSAlan Cox .close = psbfb_vm_close 1564d8d096eSAlan Cox }; 1574d8d096eSAlan Cox 1584d8d096eSAlan Cox static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1594d8d096eSAlan Cox { 1604d8d096eSAlan Cox struct psb_fbdev *fbdev = info->par; 1614d8d096eSAlan Cox struct psb_framebuffer *psbfb = &fbdev->pfb; 1624d8d096eSAlan Cox 1634d8d096eSAlan Cox if (vma->vm_pgoff != 0) 1644d8d096eSAlan Cox return -EINVAL; 1654d8d096eSAlan Cox if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) 1664d8d096eSAlan Cox return -EINVAL; 1674d8d096eSAlan Cox 1684d8d096eSAlan Cox if (!psbfb->addr_space) 1694d8d096eSAlan Cox psbfb->addr_space = vma->vm_file->f_mapping; 1704d8d096eSAlan Cox /* 1714d8d096eSAlan Cox * If this is a GEM object then info->screen_base is the virtual 1724d8d096eSAlan Cox * kernel remapping of the object. FIXME: Review if this is 1734d8d096eSAlan Cox * suitable for our mmap work 1744d8d096eSAlan Cox */ 1754d8d096eSAlan Cox vma->vm_ops = &psbfb_vm_ops; 1764d8d096eSAlan Cox vma->vm_private_data = (void *)psbfb; 177314e51b9SKonstantin Khlebnikov vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; 1784d8d096eSAlan Cox return 0; 1794d8d096eSAlan Cox } 1804d8d096eSAlan Cox 1814d8d096eSAlan Cox static struct fb_ops psbfb_ops = { 1824d8d096eSAlan Cox .owner = THIS_MODULE, 1833da6c2f3SStefan Christ DRM_FB_HELPER_DEFAULT_OPS, 1844d8d096eSAlan Cox .fb_setcolreg = psbfb_setcolreg, 185546187c8SArchit Taneja .fb_fillrect = drm_fb_helper_cfb_fillrect, 1864d8d096eSAlan Cox .fb_copyarea = psbfb_copyarea, 187546187c8SArchit Taneja .fb_imageblit = drm_fb_helper_cfb_imageblit, 1884d8d096eSAlan Cox .fb_mmap = psbfb_mmap, 1894d8d096eSAlan Cox .fb_sync = psbfb_sync, 1904d8d096eSAlan Cox }; 1914d8d096eSAlan Cox 192a6ba582dSAlan Cox static struct fb_ops psbfb_roll_ops = { 193a6ba582dSAlan Cox .owner = THIS_MODULE, 1943da6c2f3SStefan Christ DRM_FB_HELPER_DEFAULT_OPS, 195a6ba582dSAlan Cox .fb_setcolreg = psbfb_setcolreg, 196546187c8SArchit Taneja .fb_fillrect = drm_fb_helper_cfb_fillrect, 197546187c8SArchit Taneja .fb_copyarea = drm_fb_helper_cfb_copyarea, 198546187c8SArchit Taneja .fb_imageblit = drm_fb_helper_cfb_imageblit, 199a6ba582dSAlan Cox .fb_pan_display = psbfb_pan, 200a6ba582dSAlan Cox .fb_mmap = psbfb_mmap, 201a6ba582dSAlan Cox }; 202a6ba582dSAlan Cox 2034d8d096eSAlan Cox static struct fb_ops psbfb_unaccel_ops = { 2044d8d096eSAlan Cox .owner = THIS_MODULE, 2053da6c2f3SStefan Christ DRM_FB_HELPER_DEFAULT_OPS, 2064d8d096eSAlan Cox .fb_setcolreg = psbfb_setcolreg, 207546187c8SArchit Taneja .fb_fillrect = drm_fb_helper_cfb_fillrect, 208546187c8SArchit Taneja .fb_copyarea = drm_fb_helper_cfb_copyarea, 209546187c8SArchit Taneja .fb_imageblit = drm_fb_helper_cfb_imageblit, 2104d8d096eSAlan Cox .fb_mmap = psbfb_mmap, 2114d8d096eSAlan Cox }; 2124d8d096eSAlan Cox 2134d8d096eSAlan Cox /** 2144d8d096eSAlan Cox * psb_framebuffer_init - initialize a framebuffer 2154d8d096eSAlan Cox * @dev: our DRM device 2164d8d096eSAlan Cox * @fb: framebuffer to set up 2174d8d096eSAlan Cox * @mode_cmd: mode description 2184d8d096eSAlan Cox * @gt: backing object 2194d8d096eSAlan Cox * 2204d8d096eSAlan Cox * Configure and fill in the boilerplate for our frame buffer. Return 2214d8d096eSAlan Cox * 0 on success or an error code if we fail. 2224d8d096eSAlan Cox */ 2234d8d096eSAlan Cox static int psb_framebuffer_init(struct drm_device *dev, 2244d8d096eSAlan Cox struct psb_framebuffer *fb, 2251eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd, 2264d8d096eSAlan Cox struct gtt_range *gt) 2274d8d096eSAlan Cox { 228e0f9a4abSLaurent Pinchart const struct drm_format_info *info; 2294d8d096eSAlan Cox int ret; 2304d8d096eSAlan Cox 231e0f9a4abSLaurent Pinchart /* 232e0f9a4abSLaurent Pinchart * Reject unknown formats, YUV formats, and formats with more than 233e0f9a4abSLaurent Pinchart * 4 bytes per pixel. 234e0f9a4abSLaurent Pinchart */ 23592f08076SMaxime Ripard info = drm_get_format_info(dev, mode_cmd); 236e0f9a4abSLaurent Pinchart if (!info || !info->depth || info->cpp[0] > 4) 237e0f9a4abSLaurent Pinchart return -EINVAL; 238a9a644acSDave Airlie 239a9a644acSDave Airlie if (mode_cmd->pitches[0] & 63) 2404d8d096eSAlan Cox return -EINVAL; 241e0f9a4abSLaurent Pinchart 242a3f913caSVille Syrjälä drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd); 243bc61c975SDaniel Stone fb->base.obj[0] = >->gem; 2444d8d096eSAlan Cox ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs); 2454d8d096eSAlan Cox if (ret) { 2464d8d096eSAlan Cox dev_err(dev->dev, "framebuffer init failed: %d\n", ret); 2474d8d096eSAlan Cox return ret; 2484d8d096eSAlan Cox } 2494d8d096eSAlan Cox return 0; 2504d8d096eSAlan Cox } 2514d8d096eSAlan Cox 2524d8d096eSAlan Cox /** 2534d8d096eSAlan Cox * psb_framebuffer_create - create a framebuffer backed by gt 2544d8d096eSAlan Cox * @dev: our DRM device 2554d8d096eSAlan Cox * @mode_cmd: the description of the requested mode 2564d8d096eSAlan Cox * @gt: the backing object 2574d8d096eSAlan Cox * 2584d8d096eSAlan Cox * Create a framebuffer object backed by the gt, and fill in the 2594d8d096eSAlan Cox * boilerplate required 2604d8d096eSAlan Cox * 2614d8d096eSAlan Cox * TODO: review object references 2624d8d096eSAlan Cox */ 2634d8d096eSAlan Cox 2644d8d096eSAlan Cox static struct drm_framebuffer *psb_framebuffer_create 2654d8d096eSAlan Cox (struct drm_device *dev, 2661eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd, 2674d8d096eSAlan Cox struct gtt_range *gt) 2684d8d096eSAlan Cox { 2694d8d096eSAlan Cox struct psb_framebuffer *fb; 2704d8d096eSAlan Cox int ret; 2714d8d096eSAlan Cox 2724d8d096eSAlan Cox fb = kzalloc(sizeof(*fb), GFP_KERNEL); 2734d8d096eSAlan Cox if (!fb) 2744d8d096eSAlan Cox return ERR_PTR(-ENOMEM); 2754d8d096eSAlan Cox 2764d8d096eSAlan Cox ret = psb_framebuffer_init(dev, fb, mode_cmd, gt); 2774d8d096eSAlan Cox if (ret) { 2784d8d096eSAlan Cox kfree(fb); 2794d8d096eSAlan Cox return ERR_PTR(ret); 2804d8d096eSAlan Cox } 2814d8d096eSAlan Cox return &fb->base; 2824d8d096eSAlan Cox } 2834d8d096eSAlan Cox 2844d8d096eSAlan Cox /** 2854d8d096eSAlan Cox * psbfb_alloc - allocate frame buffer memory 2864d8d096eSAlan Cox * @dev: the DRM device 2874d8d096eSAlan Cox * @aligned_size: space needed 2884d8d096eSAlan Cox * 2894d8d096eSAlan Cox * Allocate the frame buffer. In the usual case we get a GTT range that 2904d8d096eSAlan Cox * is stolen memory backed and life is simple. If there isn't sufficient 291dffc9cebSAlan Cox * we fail as we don't have the virtual mapping space to really vmap it 292dffc9cebSAlan Cox * and the kernel console code can't handle non linear framebuffers. 2934d8d096eSAlan Cox * 294dffc9cebSAlan Cox * Re-address this as and if the framebuffer layer grows this ability. 2954d8d096eSAlan Cox */ 2964d8d096eSAlan Cox static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size) 2974d8d096eSAlan Cox { 2984d8d096eSAlan Cox struct gtt_range *backing; 2994d8d096eSAlan Cox /* Begin by trying to use stolen memory backing */ 300c269c685SPatrik Jakobsson backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE); 3014d8d096eSAlan Cox if (backing) { 30289c8233fSDavid Herrmann drm_gem_private_object_init(dev, &backing->gem, aligned_size); 3034d8d096eSAlan Cox return backing; 3044d8d096eSAlan Cox } 3054d8d096eSAlan Cox return NULL; 3064d8d096eSAlan Cox } 3074d8d096eSAlan Cox 3084d8d096eSAlan Cox /** 3094d8d096eSAlan Cox * psbfb_create - create a framebuffer 3104d8d096eSAlan Cox * @fbdev: the framebuffer device 3114d8d096eSAlan Cox * @sizes: specification of the layout 3124d8d096eSAlan Cox * 3134d8d096eSAlan Cox * Create a framebuffer to the specifications provided 3144d8d096eSAlan Cox */ 3154d8d096eSAlan Cox static int psbfb_create(struct psb_fbdev *fbdev, 3164d8d096eSAlan Cox struct drm_fb_helper_surface_size *sizes) 3174d8d096eSAlan Cox { 3184d8d096eSAlan Cox struct drm_device *dev = fbdev->psb_fb_helper.dev; 3194d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 3204d8d096eSAlan Cox struct fb_info *info; 3214d8d096eSAlan Cox struct drm_framebuffer *fb; 3224d8d096eSAlan Cox struct psb_framebuffer *psbfb = &fbdev->pfb; 323a9a644acSDave Airlie struct drm_mode_fb_cmd2 mode_cmd; 3244d8d096eSAlan Cox int size; 3254d8d096eSAlan Cox int ret; 3264d8d096eSAlan Cox struct gtt_range *backing; 327a9a644acSDave Airlie u32 bpp, depth; 3281b223c9eSAlan Cox int gtt_roll = 0; 3291b223c9eSAlan Cox int pitch_lines = 0; 3304d8d096eSAlan Cox 3314d8d096eSAlan Cox mode_cmd.width = sizes->surface_width; 3324d8d096eSAlan Cox mode_cmd.height = sizes->surface_height; 333a9a644acSDave Airlie bpp = sizes->surface_bpp; 3346aa1ead1SKirill A. Shutemov depth = sizes->surface_depth; 3354d8d096eSAlan Cox 3364d8d096eSAlan Cox /* No 24bit packed */ 337a9a644acSDave Airlie if (bpp == 24) 338a9a644acSDave Airlie bpp = 32; 3394d8d096eSAlan Cox 3401b223c9eSAlan Cox do { 3411b223c9eSAlan Cox /* 3421b223c9eSAlan Cox * Acceleration via the GTT requires pitch to be 3431b223c9eSAlan Cox * power of two aligned. Preferably page but less 3441b223c9eSAlan Cox * is ok with some fonts 3451b223c9eSAlan Cox */ 3461b223c9eSAlan Cox mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines); 3474d8d096eSAlan Cox 348a9a644acSDave Airlie size = mode_cmd.pitches[0] * mode_cmd.height; 3494d8d096eSAlan Cox size = ALIGN(size, PAGE_SIZE); 3504d8d096eSAlan Cox 3511b223c9eSAlan Cox /* Allocate the fb in the GTT with stolen page backing */ 352a6ba582dSAlan Cox backing = psbfb_alloc(dev, size); 3531b223c9eSAlan Cox 3541b223c9eSAlan Cox if (pitch_lines) 3551b223c9eSAlan Cox pitch_lines *= 2; 3561b223c9eSAlan Cox else 3571b223c9eSAlan Cox pitch_lines = 1; 3581b223c9eSAlan Cox gtt_roll++; 3591b223c9eSAlan Cox } while (backing == NULL && pitch_lines <= 16); 3601b223c9eSAlan Cox 3611b223c9eSAlan Cox /* The final pitch we accepted if we succeeded */ 3621b223c9eSAlan Cox pitch_lines /= 2; 3631b223c9eSAlan Cox 364a6ba582dSAlan Cox if (backing == NULL) { 365a6ba582dSAlan Cox /* 366a6ba582dSAlan Cox * We couldn't get the space we wanted, fall back to the 367a6ba582dSAlan Cox * display engine requirement instead. The HW requires 368a6ba582dSAlan Cox * the pitch to be 64 byte aligned 369a6ba582dSAlan Cox */ 370a6ba582dSAlan Cox 371a6ba582dSAlan Cox gtt_roll = 0; /* Don't use GTT accelerated scrolling */ 3721b223c9eSAlan Cox pitch_lines = 64; 373a6ba582dSAlan Cox 374a6ba582dSAlan Cox mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64); 375a6ba582dSAlan Cox 376a6ba582dSAlan Cox size = mode_cmd.pitches[0] * mode_cmd.height; 377a6ba582dSAlan Cox size = ALIGN(size, PAGE_SIZE); 378a6ba582dSAlan Cox 3794d8d096eSAlan Cox /* Allocate the framebuffer in the GTT with stolen page backing */ 3804d8d096eSAlan Cox backing = psbfb_alloc(dev, size); 3814d8d096eSAlan Cox if (backing == NULL) 3824d8d096eSAlan Cox return -ENOMEM; 383a6ba582dSAlan Cox } 3844d8d096eSAlan Cox 385bb849779SAlan Cox memset(dev_priv->vram_addr + backing->offset, 0, size); 386bb849779SAlan Cox 387546187c8SArchit Taneja info = drm_fb_helper_alloc_fbi(&fbdev->psb_fb_helper); 388546187c8SArchit Taneja if (IS_ERR(info)) { 389546187c8SArchit Taneja ret = PTR_ERR(info); 390da7bdda2SDaniel Vetter goto out; 3914d8d096eSAlan Cox } 3924d8d096eSAlan Cox 393a9a644acSDave Airlie mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); 394a9a644acSDave Airlie 3954d8d096eSAlan Cox ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing); 3964d8d096eSAlan Cox if (ret) 397da7bdda2SDaniel Vetter goto out; 3984d8d096eSAlan Cox 3994d8d096eSAlan Cox fb = &psbfb->base; 4004d8d096eSAlan Cox psbfb->fbdev = info; 4014d8d096eSAlan Cox 4024d8d096eSAlan Cox fbdev->psb_fb_helper.fb = fb; 4034d8d096eSAlan Cox 4041b223c9eSAlan Cox if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */ 4051b223c9eSAlan Cox info->fbops = &psbfb_ops; 4061b223c9eSAlan Cox else if (gtt_roll) { /* GTT rolling seems best */ 407a6ba582dSAlan Cox info->fbops = &psbfb_roll_ops; 408a6ba582dSAlan Cox info->flags |= FBINFO_HWACCEL_YPAN; 4091b223c9eSAlan Cox } else /* Software */ 410a6ba582dSAlan Cox info->fbops = &psbfb_unaccel_ops; 4114d8d096eSAlan Cox 4124d8d096eSAlan Cox info->fix.smem_start = dev->mode_config.fb_base; 4134d8d096eSAlan Cox info->fix.smem_len = size; 414a6ba582dSAlan Cox info->fix.ywrapstep = gtt_roll; 415a6ba582dSAlan Cox info->fix.ypanstep = 0; 4164d8d096eSAlan Cox 4174d8d096eSAlan Cox /* Accessed stolen memory directly */ 41837214ca0SKirill A. Shutemov info->screen_base = dev_priv->vram_addr + backing->offset; 4194d8d096eSAlan Cox info->screen_size = size; 4204d8d096eSAlan Cox 4214d8d096eSAlan Cox if (dev_priv->gtt.stolen_size) { 4224d8d096eSAlan Cox info->apertures->ranges[0].base = dev->mode_config.fb_base; 4234d8d096eSAlan Cox info->apertures->ranges[0].size = dev_priv->gtt.stolen_size; 4244d8d096eSAlan Cox } 4254d8d096eSAlan Cox 426dfec164eSDaniel Vetter drm_fb_helper_fill_info(info, &fbdev->psb_fb_helper, sizes); 4274d8d096eSAlan Cox 4284d8d096eSAlan Cox info->fix.mmio_start = pci_resource_start(dev->pdev, 0); 4294d8d096eSAlan Cox info->fix.mmio_len = pci_resource_len(dev->pdev, 0); 4304d8d096eSAlan Cox 431fb2a99e1SSascha Hauer /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 4324d8d096eSAlan Cox 43331a0685aSAlan Cox dev_dbg(dev->dev, "allocated %dx%d fb\n", 4344d8d096eSAlan Cox psbfb->base.width, psbfb->base.height); 4354d8d096eSAlan Cox 4364d8d096eSAlan Cox return 0; 437da7bdda2SDaniel Vetter out: 4384d8d096eSAlan Cox psb_gtt_free_range(dev, backing); 4394d8d096eSAlan Cox return ret; 4404d8d096eSAlan Cox } 4414d8d096eSAlan Cox 4424d8d096eSAlan Cox /** 4434d8d096eSAlan Cox * psb_user_framebuffer_create - create framebuffer 4444d8d096eSAlan Cox * @dev: our DRM device 4454d8d096eSAlan Cox * @filp: client file 4464d8d096eSAlan Cox * @cmd: mode request 4474d8d096eSAlan Cox * 4484d8d096eSAlan Cox * Create a new framebuffer backed by a userspace GEM object 4494d8d096eSAlan Cox */ 4504d8d096eSAlan Cox static struct drm_framebuffer *psb_user_framebuffer_create 4514d8d096eSAlan Cox (struct drm_device *dev, struct drm_file *filp, 4521eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *cmd) 4534d8d096eSAlan Cox { 4544d8d096eSAlan Cox struct gtt_range *r; 4554d8d096eSAlan Cox struct drm_gem_object *obj; 4564d8d096eSAlan Cox 4574d8d096eSAlan Cox /* 4584d8d096eSAlan Cox * Find the GEM object and thus the gtt range object that is 4594d8d096eSAlan Cox * to back this space 4604d8d096eSAlan Cox */ 461a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(filp, cmd->handles[0]); 4624d8d096eSAlan Cox if (obj == NULL) 4634d8d096eSAlan Cox return ERR_PTR(-ENOENT); 4644d8d096eSAlan Cox 4654d8d096eSAlan Cox /* Let the core code do all the work */ 4664d8d096eSAlan Cox r = container_of(obj, struct gtt_range, gem); 4674d8d096eSAlan Cox return psb_framebuffer_create(dev, cmd, r); 4684d8d096eSAlan Cox } 4694d8d096eSAlan Cox 4704d8d096eSAlan Cox static int psbfb_probe(struct drm_fb_helper *helper, 4714d8d096eSAlan Cox struct drm_fb_helper_surface_size *sizes) 4724d8d096eSAlan Cox { 473c39aa6a1SFabian Frederick struct psb_fbdev *psb_fbdev = 474c39aa6a1SFabian Frederick container_of(helper, struct psb_fbdev, psb_fb_helper); 4753aad16d2SAlan Cox struct drm_device *dev = psb_fbdev->psb_fb_helper.dev; 4763aad16d2SAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 4773aad16d2SAlan Cox int bytespp; 4784d8d096eSAlan Cox 4793aad16d2SAlan Cox bytespp = sizes->surface_bpp / 8; 4803aad16d2SAlan Cox if (bytespp == 3) /* no 24bit packed */ 4813aad16d2SAlan Cox bytespp = 4; 4823aad16d2SAlan Cox 4833aad16d2SAlan Cox /* If the mode will not fit in 32bit then switch to 16bit to get 4843aad16d2SAlan Cox a console on full resolution. The X mode setting server will 4853aad16d2SAlan Cox allocate its own 32bit GEM framebuffer */ 4863aad16d2SAlan Cox if (ALIGN(sizes->fb_width * bytespp, 64) * sizes->fb_height > 4873aad16d2SAlan Cox dev_priv->vram_stolen_size) { 4883aad16d2SAlan Cox sizes->surface_bpp = 16; 4893aad16d2SAlan Cox sizes->surface_depth = 16; 4903aad16d2SAlan Cox } 4913aad16d2SAlan Cox 492cd5428a5SDaniel Vetter return psbfb_create(psb_fbdev, sizes); 4934d8d096eSAlan Cox } 4944d8d096eSAlan Cox 4953a493879SThierry Reding static const struct drm_fb_helper_funcs psb_fb_helper_funcs = { 4964d8d096eSAlan Cox .fb_probe = psbfb_probe, 4974d8d096eSAlan Cox }; 4984d8d096eSAlan Cox 499bc7f2b08SKirill A. Shutemov static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev) 5004d8d096eSAlan Cox { 5014d8d096eSAlan Cox struct psb_framebuffer *psbfb = &fbdev->pfb; 5024d8d096eSAlan Cox 503546187c8SArchit Taneja drm_fb_helper_unregister_fbi(&fbdev->psb_fb_helper); 504546187c8SArchit Taneja 5054d8d096eSAlan Cox drm_fb_helper_fini(&fbdev->psb_fb_helper); 50636206361SDaniel Vetter drm_framebuffer_unregister_private(&psbfb->base); 5074d8d096eSAlan Cox drm_framebuffer_cleanup(&psbfb->base); 5084d8d096eSAlan Cox 509bc61c975SDaniel Stone if (psbfb->base.obj[0]) 510a63d3bd2SThomas Zimmermann drm_gem_object_put_unlocked(psbfb->base.obj[0]); 5114d8d096eSAlan Cox return 0; 5124d8d096eSAlan Cox } 5134d8d096eSAlan Cox 5144d8d096eSAlan Cox int psb_fbdev_init(struct drm_device *dev) 5154d8d096eSAlan Cox { 5164d8d096eSAlan Cox struct psb_fbdev *fbdev; 5174d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 51801934c2aSThierry Reding int ret; 5194d8d096eSAlan Cox 5204d8d096eSAlan Cox fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL); 5214d8d096eSAlan Cox if (!fbdev) { 5224d8d096eSAlan Cox dev_err(dev->dev, "no memory\n"); 5234d8d096eSAlan Cox return -ENOMEM; 5244d8d096eSAlan Cox } 5254d8d096eSAlan Cox 5264d8d096eSAlan Cox dev_priv->fbdev = fbdev; 52710a23102SThierry Reding 52810a23102SThierry Reding drm_fb_helper_prepare(dev, &fbdev->psb_fb_helper, &psb_fb_helper_funcs); 5294d8d096eSAlan Cox 53001934c2aSThierry Reding ret = drm_fb_helper_init(dev, &fbdev->psb_fb_helper, 531e4563f6bSGabriel Krisman Bertazi INTELFB_CONN_LIMIT); 53201934c2aSThierry Reding if (ret) 53301934c2aSThierry Reding goto free; 5344d8d096eSAlan Cox 53501934c2aSThierry Reding ret = drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper); 53601934c2aSThierry Reding if (ret) 53701934c2aSThierry Reding goto fini; 53876a39dbfSDaniel Vetter 53976a39dbfSDaniel Vetter /* disable all the possible outputs/crtcs before entering KMS mode */ 54076a39dbfSDaniel Vetter drm_helper_disable_unused_functions(dev); 54176a39dbfSDaniel Vetter 54201934c2aSThierry Reding ret = drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32); 54301934c2aSThierry Reding if (ret) 54401934c2aSThierry Reding goto fini; 54501934c2aSThierry Reding 5464d8d096eSAlan Cox return 0; 54701934c2aSThierry Reding 54801934c2aSThierry Reding fini: 54901934c2aSThierry Reding drm_fb_helper_fini(&fbdev->psb_fb_helper); 55001934c2aSThierry Reding free: 55101934c2aSThierry Reding kfree(fbdev); 55201934c2aSThierry Reding return ret; 5534d8d096eSAlan Cox } 5544d8d096eSAlan Cox 555bc7f2b08SKirill A. Shutemov static void psb_fbdev_fini(struct drm_device *dev) 5564d8d096eSAlan Cox { 5574d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 5584d8d096eSAlan Cox 5594d8d096eSAlan Cox if (!dev_priv->fbdev) 5604d8d096eSAlan Cox return; 5614d8d096eSAlan Cox 5624d8d096eSAlan Cox psb_fbdev_destroy(dev, dev_priv->fbdev); 5634d8d096eSAlan Cox kfree(dev_priv->fbdev); 5644d8d096eSAlan Cox dev_priv->fbdev = NULL; 5654d8d096eSAlan Cox } 5664d8d096eSAlan Cox 5674d8d096eSAlan Cox static const struct drm_mode_config_funcs psb_mode_funcs = { 5684d8d096eSAlan Cox .fb_create = psb_user_framebuffer_create, 569cdc13f68SNoralf Trønnes .output_poll_changed = drm_fb_helper_output_poll_changed, 5704d8d096eSAlan Cox }; 5714d8d096eSAlan Cox 5724d8d096eSAlan Cox static void psb_setup_outputs(struct drm_device *dev) 5734d8d096eSAlan Cox { 5744d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 5754d8d096eSAlan Cox struct drm_connector *connector; 5764d8d096eSAlan Cox 5774d8d096eSAlan Cox drm_mode_create_scaling_mode_property(dev); 5784d8d096eSAlan Cox 57913619ce5SAlan Cox /* It is ok for this to fail - we just don't get backlight control */ 58013619ce5SAlan Cox if (!dev_priv->backlight_property) 58113619ce5SAlan Cox dev_priv->backlight_property = drm_property_create_range(dev, 0, 58213619ce5SAlan Cox "backlight", 0, 100); 5834d8d096eSAlan Cox dev_priv->ops->output_init(dev); 5844d8d096eSAlan Cox 5854d8d096eSAlan Cox list_for_each_entry(connector, &dev->mode_config.connector_list, 5864d8d096eSAlan Cox head) { 587367e4408SPatrik Jakobsson struct gma_encoder *gma_encoder = gma_attached_encoder(connector); 588367e4408SPatrik Jakobsson struct drm_encoder *encoder = &gma_encoder->base; 5894d8d096eSAlan Cox int crtc_mask = 0, clone_mask = 0; 5904d8d096eSAlan Cox 5914d8d096eSAlan Cox /* valid crtcs */ 592367e4408SPatrik Jakobsson switch (gma_encoder->type) { 5934d8d096eSAlan Cox case INTEL_OUTPUT_ANALOG: 5944d8d096eSAlan Cox crtc_mask = (1 << 0); 5954d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_ANALOG); 5964d8d096eSAlan Cox break; 5974d8d096eSAlan Cox case INTEL_OUTPUT_SDVO: 598cf8efd3aSPatrik Jakobsson crtc_mask = dev_priv->ops->sdvo_mask; 5994d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_SDVO); 6004d8d096eSAlan Cox break; 6014d8d096eSAlan Cox case INTEL_OUTPUT_LVDS: 602d235e64aSAlan Cox crtc_mask = dev_priv->ops->lvds_mask; 6034d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_LVDS); 6044d8d096eSAlan Cox break; 6054d8d096eSAlan Cox case INTEL_OUTPUT_MIPI: 6064d8d096eSAlan Cox crtc_mask = (1 << 0); 6074d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_MIPI); 6084d8d096eSAlan Cox break; 6094d8d096eSAlan Cox case INTEL_OUTPUT_MIPI2: 6104d8d096eSAlan Cox crtc_mask = (1 << 2); 6114d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_MIPI2); 6124d8d096eSAlan Cox break; 6134d8d096eSAlan Cox case INTEL_OUTPUT_HDMI: 614d235e64aSAlan Cox crtc_mask = dev_priv->ops->hdmi_mask; 6154d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_HDMI); 6164d8d096eSAlan Cox break; 617220801bdSAlan Cox case INTEL_OUTPUT_DISPLAYPORT: 618220801bdSAlan Cox crtc_mask = (1 << 0) | (1 << 1); 619220801bdSAlan Cox clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); 620220801bdSAlan Cox break; 621d112a816SZhao Yakui case INTEL_OUTPUT_EDP: 622d112a816SZhao Yakui crtc_mask = (1 << 1); 623d112a816SZhao Yakui clone_mask = (1 << INTEL_OUTPUT_EDP); 6244d8d096eSAlan Cox } 6254d8d096eSAlan Cox encoder->possible_crtcs = crtc_mask; 6264d8d096eSAlan Cox encoder->possible_clones = 627a3d5d75fSPatrik Jakobsson gma_connector_clones(dev, clone_mask); 6284d8d096eSAlan Cox } 6294d8d096eSAlan Cox } 6304d8d096eSAlan Cox 6314d8d096eSAlan Cox void psb_modeset_init(struct drm_device *dev) 6324d8d096eSAlan Cox { 6334d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 6344d8d096eSAlan Cox struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; 6354d8d096eSAlan Cox int i; 6364d8d096eSAlan Cox 6374d8d096eSAlan Cox drm_mode_config_init(dev); 6384d8d096eSAlan Cox 6394d8d096eSAlan Cox dev->mode_config.min_width = 0; 6404d8d096eSAlan Cox dev->mode_config.min_height = 0; 6414d8d096eSAlan Cox 642e6ecefaaSLaurent Pinchart dev->mode_config.funcs = &psb_mode_funcs; 6434d8d096eSAlan Cox 6444d8d096eSAlan Cox /* set memory base */ 645dffc9cebSAlan Cox /* Oaktrail and Poulsbo should use BAR 2*/ 6464d8d096eSAlan Cox pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *) 6474d8d096eSAlan Cox &(dev->mode_config.fb_base)); 6484d8d096eSAlan Cox 6494d8d096eSAlan Cox /* num pipes is 2 for PSB but 1 for Mrst */ 6504d8d096eSAlan Cox for (i = 0; i < dev_priv->num_pipe; i++) 6514d8d096eSAlan Cox psb_intel_crtc_init(dev, i, mode_dev); 6524d8d096eSAlan Cox 653cbbd379aSPatrik Jakobsson dev->mode_config.max_width = 4096; 654cbbd379aSPatrik Jakobsson dev->mode_config.max_height = 4096; 6554d8d096eSAlan Cox 6564d8d096eSAlan Cox psb_setup_outputs(dev); 657d235e64aSAlan Cox 658d235e64aSAlan Cox if (dev_priv->ops->errata) 659d235e64aSAlan Cox dev_priv->ops->errata(dev); 6604ab2c7f1SAlan Cox 6614ab2c7f1SAlan Cox dev_priv->modeset = true; 6624d8d096eSAlan Cox } 6634d8d096eSAlan Cox 6644d8d096eSAlan Cox void psb_modeset_cleanup(struct drm_device *dev) 6654d8d096eSAlan Cox { 6664ab2c7f1SAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 6674ab2c7f1SAlan Cox if (dev_priv->modeset) { 6684d8d096eSAlan Cox drm_kms_helper_poll_fini(dev); 6694d8d096eSAlan Cox psb_fbdev_fini(dev); 6704d8d096eSAlan Cox drm_mode_config_cleanup(dev); 6714d8d096eSAlan Cox } 6724ab2c7f1SAlan Cox } 673