1a61127c2SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 24d8d096eSAlan Cox /************************************************************************** 34d8d096eSAlan Cox * Copyright (c) 2007-2011, Intel Corporation. 44d8d096eSAlan Cox * All Rights Reserved. 54d8d096eSAlan Cox * 64d8d096eSAlan Cox **************************************************************************/ 74d8d096eSAlan Cox 84d8d096eSAlan Cox #include <linux/console.h> 90c7b178aSSam Ravnborg #include <linux/delay.h> 100c7b178aSSam Ravnborg #include <linux/errno.h> 110c7b178aSSam Ravnborg #include <linux/init.h> 120c7b178aSSam Ravnborg #include <linux/kernel.h> 130c7b178aSSam Ravnborg #include <linux/mm.h> 140c7b178aSSam Ravnborg #include <linux/module.h> 150c7b178aSSam Ravnborg #include <linux/pfn_t.h> 160c7b178aSSam Ravnborg #include <linux/slab.h> 170c7b178aSSam Ravnborg #include <linux/string.h> 180c7b178aSSam Ravnborg #include <linux/tty.h> 194d8d096eSAlan Cox 204d8d096eSAlan Cox #include <drm/drm.h> 214d8d096eSAlan Cox #include <drm/drm_crtc.h> 22a9a644acSDave Airlie #include <drm/drm_fb_helper.h> 230c7b178aSSam Ravnborg #include <drm/drm_fourcc.h> 24bc61c975SDaniel Stone #include <drm/drm_gem_framebuffer_helper.h> 254d8d096eSAlan Cox 264d8d096eSAlan Cox #include "framebuffer.h" 277cd467d0SThomas Zimmermann #include "gem.h" 28a6ba582dSAlan Cox #include "gtt.h" 290c7b178aSSam Ravnborg #include "psb_drv.h" 300c7b178aSSam Ravnborg #include "psb_intel_drv.h" 310c7b178aSSam Ravnborg #include "psb_intel_reg.h" 324d8d096eSAlan Cox 334d8d096eSAlan Cox static const struct drm_framebuffer_funcs psb_fb_funcs = { 34bc61c975SDaniel Stone .destroy = drm_gem_fb_destroy, 35bc61c975SDaniel Stone .create_handle = drm_gem_fb_create_handle, 364d8d096eSAlan Cox }; 374d8d096eSAlan Cox 384d8d096eSAlan Cox #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16) 394d8d096eSAlan Cox 404d8d096eSAlan Cox static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green, 414d8d096eSAlan Cox unsigned blue, unsigned transp, 424d8d096eSAlan Cox struct fb_info *info) 434d8d096eSAlan Cox { 446b7ce2c4SThomas Zimmermann struct drm_fb_helper *fb_helper = info->par; 456b7ce2c4SThomas Zimmermann struct drm_framebuffer *fb = fb_helper->fb; 464d8d096eSAlan Cox uint32_t v; 474d8d096eSAlan Cox 484d8d096eSAlan Cox if (!fb) 494d8d096eSAlan Cox return -ENOMEM; 504d8d096eSAlan Cox 514d8d096eSAlan Cox if (regno > 255) 524d8d096eSAlan Cox return 1; 534d8d096eSAlan Cox 544d8d096eSAlan Cox red = CMAP_TOHW(red, info->var.red.length); 554d8d096eSAlan Cox blue = CMAP_TOHW(blue, info->var.blue.length); 564d8d096eSAlan Cox green = CMAP_TOHW(green, info->var.green.length); 574d8d096eSAlan Cox transp = CMAP_TOHW(transp, info->var.transp.length); 584d8d096eSAlan Cox 594d8d096eSAlan Cox v = (red << info->var.red.offset) | 604d8d096eSAlan Cox (green << info->var.green.offset) | 614d8d096eSAlan Cox (blue << info->var.blue.offset) | 624d8d096eSAlan Cox (transp << info->var.transp.offset); 634d8d096eSAlan Cox 644d8d096eSAlan Cox if (regno < 16) { 65272725c7SVille Syrjälä switch (fb->format->cpp[0] * 8) { 664d8d096eSAlan Cox case 16: 674d8d096eSAlan Cox ((uint32_t *) info->pseudo_palette)[regno] = v; 684d8d096eSAlan Cox break; 694d8d096eSAlan Cox case 24: 704d8d096eSAlan Cox case 32: 714d8d096eSAlan Cox ((uint32_t *) info->pseudo_palette)[regno] = v; 724d8d096eSAlan Cox break; 734d8d096eSAlan Cox } 744d8d096eSAlan Cox } 754d8d096eSAlan Cox 764d8d096eSAlan Cox return 0; 774d8d096eSAlan Cox } 784d8d096eSAlan Cox 790edf6813SSouptick Joarder static vm_fault_t psbfb_vm_fault(struct vm_fault *vmf) 804d8d096eSAlan Cox { 8111bac800SDave Jiang struct vm_area_struct *vma = vmf->vma; 82e18da8ceSThomas Zimmermann struct drm_framebuffer *fb = vma->vm_private_data; 83e18da8ceSThomas Zimmermann struct drm_device *dev = fb->dev; 844d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 85e18da8ceSThomas Zimmermann struct gtt_range *gtt = to_gtt_range(fb->obj[0]); 864d8d096eSAlan Cox int page_num; 874d8d096eSAlan Cox int i; 884d8d096eSAlan Cox unsigned long address; 890edf6813SSouptick Joarder vm_fault_t ret = VM_FAULT_SIGBUS; 904d8d096eSAlan Cox unsigned long pfn; 9161bb3feaSPatrik Jakobsson unsigned long phys_addr = (unsigned long)dev_priv->stolen_base + 92bc61c975SDaniel Stone gtt->offset; 934d8d096eSAlan Cox 94024b6a63SShyam Saini page_num = vma_pages(vma); 951a29d85eSJan Kara address = vmf->address - (vmf->pgoff << PAGE_SHIFT); 964d8d096eSAlan Cox 974d8d096eSAlan Cox vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 984d8d096eSAlan Cox 994d8d096eSAlan Cox for (i = 0; i < page_num; i++) { 1004d8d096eSAlan Cox pfn = (phys_addr >> PAGE_SHIFT); 1014d8d096eSAlan Cox 1020edf6813SSouptick Joarder ret = vmf_insert_mixed(vma, address, 10301c8f1c4SDan Williams __pfn_to_pfn_t(pfn, PFN_DEV)); 1040edf6813SSouptick Joarder if (unlikely(ret & VM_FAULT_ERROR)) 1054d8d096eSAlan Cox break; 1064d8d096eSAlan Cox address += PAGE_SIZE; 1074d8d096eSAlan Cox phys_addr += PAGE_SIZE; 1084d8d096eSAlan Cox } 1090edf6813SSouptick Joarder return ret; 1104d8d096eSAlan Cox } 1114d8d096eSAlan Cox 1124d8d096eSAlan Cox static void psbfb_vm_open(struct vm_area_struct *vma) 1134d8d096eSAlan Cox { 1144d8d096eSAlan Cox } 1154d8d096eSAlan Cox 1164d8d096eSAlan Cox static void psbfb_vm_close(struct vm_area_struct *vma) 1174d8d096eSAlan Cox { 1184d8d096eSAlan Cox } 1194d8d096eSAlan Cox 12078b68556SLaurent Pinchart static const struct vm_operations_struct psbfb_vm_ops = { 1214d8d096eSAlan Cox .fault = psbfb_vm_fault, 1224d8d096eSAlan Cox .open = psbfb_vm_open, 1234d8d096eSAlan Cox .close = psbfb_vm_close 1244d8d096eSAlan Cox }; 1254d8d096eSAlan Cox 1264d8d096eSAlan Cox static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma) 1274d8d096eSAlan Cox { 1286b7ce2c4SThomas Zimmermann struct drm_fb_helper *fb_helper = info->par; 1296b7ce2c4SThomas Zimmermann struct drm_framebuffer *fb = fb_helper->fb; 1304d8d096eSAlan Cox 1314d8d096eSAlan Cox if (vma->vm_pgoff != 0) 1324d8d096eSAlan Cox return -EINVAL; 1334d8d096eSAlan Cox if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) 1344d8d096eSAlan Cox return -EINVAL; 1354d8d096eSAlan Cox 1364d8d096eSAlan Cox /* 1374d8d096eSAlan Cox * If this is a GEM object then info->screen_base is the virtual 1384d8d096eSAlan Cox * kernel remapping of the object. FIXME: Review if this is 1394d8d096eSAlan Cox * suitable for our mmap work 1404d8d096eSAlan Cox */ 1414d8d096eSAlan Cox vma->vm_ops = &psbfb_vm_ops; 142e18da8ceSThomas Zimmermann vma->vm_private_data = (void *)fb; 143314e51b9SKonstantin Khlebnikov vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; 1444d8d096eSAlan Cox return 0; 1454d8d096eSAlan Cox } 1464d8d096eSAlan Cox 147c08503ecSRikard Falkeborn static const struct fb_ops psbfb_ops = { 1484d8d096eSAlan Cox .owner = THIS_MODULE, 1493da6c2f3SStefan Christ DRM_FB_HELPER_DEFAULT_OPS, 1504d8d096eSAlan Cox .fb_setcolreg = psbfb_setcolreg, 151546187c8SArchit Taneja .fb_fillrect = drm_fb_helper_cfb_fillrect, 1524d8d096eSAlan Cox .fb_copyarea = psbfb_copyarea, 153546187c8SArchit Taneja .fb_imageblit = drm_fb_helper_cfb_imageblit, 1544d8d096eSAlan Cox .fb_mmap = psbfb_mmap, 1554d8d096eSAlan Cox .fb_sync = psbfb_sync, 1564d8d096eSAlan Cox }; 1574d8d096eSAlan Cox 158c08503ecSRikard Falkeborn static const struct fb_ops psbfb_unaccel_ops = { 1594d8d096eSAlan Cox .owner = THIS_MODULE, 1603da6c2f3SStefan Christ DRM_FB_HELPER_DEFAULT_OPS, 1614d8d096eSAlan Cox .fb_setcolreg = psbfb_setcolreg, 162546187c8SArchit Taneja .fb_fillrect = drm_fb_helper_cfb_fillrect, 163546187c8SArchit Taneja .fb_copyarea = drm_fb_helper_cfb_copyarea, 164546187c8SArchit Taneja .fb_imageblit = drm_fb_helper_cfb_imageblit, 1654d8d096eSAlan Cox .fb_mmap = psbfb_mmap, 1664d8d096eSAlan Cox }; 1674d8d096eSAlan Cox 1684d8d096eSAlan Cox /** 1694d8d096eSAlan Cox * psb_framebuffer_init - initialize a framebuffer 1704d8d096eSAlan Cox * @dev: our DRM device 1714d8d096eSAlan Cox * @fb: framebuffer to set up 1724d8d096eSAlan Cox * @mode_cmd: mode description 1734d8d096eSAlan Cox * @gt: backing object 1744d8d096eSAlan Cox * 1754d8d096eSAlan Cox * Configure and fill in the boilerplate for our frame buffer. Return 1764d8d096eSAlan Cox * 0 on success or an error code if we fail. 1774d8d096eSAlan Cox */ 1784d8d096eSAlan Cox static int psb_framebuffer_init(struct drm_device *dev, 179e18da8ceSThomas Zimmermann struct drm_framebuffer *fb, 1801eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd, 1810471c9f5SThomas Zimmermann struct drm_gem_object *obj) 1824d8d096eSAlan Cox { 183e0f9a4abSLaurent Pinchart const struct drm_format_info *info; 1844d8d096eSAlan Cox int ret; 1854d8d096eSAlan Cox 186e0f9a4abSLaurent Pinchart /* 187e0f9a4abSLaurent Pinchart * Reject unknown formats, YUV formats, and formats with more than 188e0f9a4abSLaurent Pinchart * 4 bytes per pixel. 189e0f9a4abSLaurent Pinchart */ 19092f08076SMaxime Ripard info = drm_get_format_info(dev, mode_cmd); 191e0f9a4abSLaurent Pinchart if (!info || !info->depth || info->cpp[0] > 4) 192e0f9a4abSLaurent Pinchart return -EINVAL; 193a9a644acSDave Airlie 194a9a644acSDave Airlie if (mode_cmd->pitches[0] & 63) 1954d8d096eSAlan Cox return -EINVAL; 196e0f9a4abSLaurent Pinchart 197e18da8ceSThomas Zimmermann drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd); 1980471c9f5SThomas Zimmermann fb->obj[0] = obj; 199e18da8ceSThomas Zimmermann ret = drm_framebuffer_init(dev, fb, &psb_fb_funcs); 2004d8d096eSAlan Cox if (ret) { 2014d8d096eSAlan Cox dev_err(dev->dev, "framebuffer init failed: %d\n", ret); 2024d8d096eSAlan Cox return ret; 2034d8d096eSAlan Cox } 2044d8d096eSAlan Cox return 0; 2054d8d096eSAlan Cox } 2064d8d096eSAlan Cox 2074d8d096eSAlan Cox /** 2084d8d096eSAlan Cox * psb_framebuffer_create - create a framebuffer backed by gt 2094d8d096eSAlan Cox * @dev: our DRM device 2104d8d096eSAlan Cox * @mode_cmd: the description of the requested mode 2114d8d096eSAlan Cox * @gt: the backing object 2124d8d096eSAlan Cox * 2134d8d096eSAlan Cox * Create a framebuffer object backed by the gt, and fill in the 2144d8d096eSAlan Cox * boilerplate required 2154d8d096eSAlan Cox * 2164d8d096eSAlan Cox * TODO: review object references 2174d8d096eSAlan Cox */ 2184d8d096eSAlan Cox 2194d8d096eSAlan Cox static struct drm_framebuffer *psb_framebuffer_create 2204d8d096eSAlan Cox (struct drm_device *dev, 2211eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd, 2220471c9f5SThomas Zimmermann struct drm_gem_object *obj) 2234d8d096eSAlan Cox { 224e18da8ceSThomas Zimmermann struct drm_framebuffer *fb; 2254d8d096eSAlan Cox int ret; 2264d8d096eSAlan Cox 2274d8d096eSAlan Cox fb = kzalloc(sizeof(*fb), GFP_KERNEL); 2284d8d096eSAlan Cox if (!fb) 2294d8d096eSAlan Cox return ERR_PTR(-ENOMEM); 2304d8d096eSAlan Cox 2310471c9f5SThomas Zimmermann ret = psb_framebuffer_init(dev, fb, mode_cmd, obj); 2324d8d096eSAlan Cox if (ret) { 2334d8d096eSAlan Cox kfree(fb); 2344d8d096eSAlan Cox return ERR_PTR(ret); 2354d8d096eSAlan Cox } 236e18da8ceSThomas Zimmermann return fb; 2374d8d096eSAlan Cox } 2384d8d096eSAlan Cox 2394d8d096eSAlan Cox /** 2404d8d096eSAlan Cox * psbfb_alloc - allocate frame buffer memory 2414d8d096eSAlan Cox * @dev: the DRM device 2424d8d096eSAlan Cox * @aligned_size: space needed 2434d8d096eSAlan Cox * 2444d8d096eSAlan Cox * Allocate the frame buffer. In the usual case we get a GTT range that 2454d8d096eSAlan Cox * is stolen memory backed and life is simple. If there isn't sufficient 246dffc9cebSAlan Cox * we fail as we don't have the virtual mapping space to really vmap it 247dffc9cebSAlan Cox * and the kernel console code can't handle non linear framebuffers. 2484d8d096eSAlan Cox * 249dffc9cebSAlan Cox * Re-address this as and if the framebuffer layer grows this ability. 2504d8d096eSAlan Cox */ 2514d8d096eSAlan Cox static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size) 2524d8d096eSAlan Cox { 2534d8d096eSAlan Cox struct gtt_range *backing; 2544d8d096eSAlan Cox /* Begin by trying to use stolen memory backing */ 255c269c685SPatrik Jakobsson backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE); 2564d8d096eSAlan Cox if (backing) { 2577cd467d0SThomas Zimmermann backing->gem.funcs = &psb_gem_object_funcs; 25889c8233fSDavid Herrmann drm_gem_private_object_init(dev, &backing->gem, aligned_size); 2594d8d096eSAlan Cox return backing; 2604d8d096eSAlan Cox } 2614d8d096eSAlan Cox return NULL; 2624d8d096eSAlan Cox } 2634d8d096eSAlan Cox 2644d8d096eSAlan Cox /** 2654d8d096eSAlan Cox * psbfb_create - create a framebuffer 2664d8d096eSAlan Cox * @fbdev: the framebuffer device 2674d8d096eSAlan Cox * @sizes: specification of the layout 2684d8d096eSAlan Cox * 2694d8d096eSAlan Cox * Create a framebuffer to the specifications provided 2704d8d096eSAlan Cox */ 2716b7ce2c4SThomas Zimmermann static int psbfb_create(struct drm_fb_helper *fb_helper, 2724d8d096eSAlan Cox struct drm_fb_helper_surface_size *sizes) 2734d8d096eSAlan Cox { 2746b7ce2c4SThomas Zimmermann struct drm_device *dev = fb_helper->dev; 2754d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 2764d8d096eSAlan Cox struct fb_info *info; 2770a8ec2edSThomas Zimmermann struct drm_framebuffer *fb; 278a9a644acSDave Airlie struct drm_mode_fb_cmd2 mode_cmd; 2794d8d096eSAlan Cox int size; 2804d8d096eSAlan Cox int ret; 2814d8d096eSAlan Cox struct gtt_range *backing; 282a9a644acSDave Airlie u32 bpp, depth; 2834d8d096eSAlan Cox 2844d8d096eSAlan Cox mode_cmd.width = sizes->surface_width; 2854d8d096eSAlan Cox mode_cmd.height = sizes->surface_height; 286a9a644acSDave Airlie bpp = sizes->surface_bpp; 2876aa1ead1SKirill A. Shutemov depth = sizes->surface_depth; 2884d8d096eSAlan Cox 2894d8d096eSAlan Cox /* No 24bit packed */ 290a9a644acSDave Airlie if (bpp == 24) 291a9a644acSDave Airlie bpp = 32; 2924d8d096eSAlan Cox 293*ebc7d647SPatrik Jakobsson mode_cmd.pitches[0] = ALIGN(mode_cmd.width * DIV_ROUND_UP(bpp, 8), 64); 294a6ba582dSAlan Cox 295a6ba582dSAlan Cox size = mode_cmd.pitches[0] * mode_cmd.height; 296a6ba582dSAlan Cox size = ALIGN(size, PAGE_SIZE); 297a6ba582dSAlan Cox 2984d8d096eSAlan Cox /* Allocate the framebuffer in the GTT with stolen page backing */ 2994d8d096eSAlan Cox backing = psbfb_alloc(dev, size); 3004d8d096eSAlan Cox if (backing == NULL) 3014d8d096eSAlan Cox return -ENOMEM; 3024d8d096eSAlan Cox 303bb849779SAlan Cox memset(dev_priv->vram_addr + backing->offset, 0, size); 304bb849779SAlan Cox 3056b7ce2c4SThomas Zimmermann info = drm_fb_helper_alloc_fbi(fb_helper); 306546187c8SArchit Taneja if (IS_ERR(info)) { 307546187c8SArchit Taneja ret = PTR_ERR(info); 308da7bdda2SDaniel Vetter goto out; 3094d8d096eSAlan Cox } 3104d8d096eSAlan Cox 311a9a644acSDave Airlie mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); 312a9a644acSDave Airlie 3130a8ec2edSThomas Zimmermann fb = psb_framebuffer_create(dev, &mode_cmd, &backing->gem); 3140a8ec2edSThomas Zimmermann if (IS_ERR(fb)) { 3150a8ec2edSThomas Zimmermann ret = PTR_ERR(fb); 316da7bdda2SDaniel Vetter goto out; 3170a8ec2edSThomas Zimmermann } 3184d8d096eSAlan Cox 3196b7ce2c4SThomas Zimmermann fb_helper->fb = fb; 3204d8d096eSAlan Cox 321*ebc7d647SPatrik Jakobsson if (dev_priv->ops->accel_2d) /* 2D engine */ 3221b223c9eSAlan Cox info->fbops = &psbfb_ops; 323*ebc7d647SPatrik Jakobsson else /* Software */ 324a6ba582dSAlan Cox info->fbops = &psbfb_unaccel_ops; 3254d8d096eSAlan Cox 3264d8d096eSAlan Cox info->fix.smem_start = dev->mode_config.fb_base; 3274d8d096eSAlan Cox info->fix.smem_len = size; 328*ebc7d647SPatrik Jakobsson info->fix.ywrapstep = 0; 329a6ba582dSAlan Cox info->fix.ypanstep = 0; 3304d8d096eSAlan Cox 3314d8d096eSAlan Cox /* Accessed stolen memory directly */ 33237214ca0SKirill A. Shutemov info->screen_base = dev_priv->vram_addr + backing->offset; 3334d8d096eSAlan Cox info->screen_size = size; 3344d8d096eSAlan Cox 3354d8d096eSAlan Cox if (dev_priv->gtt.stolen_size) { 3364d8d096eSAlan Cox info->apertures->ranges[0].base = dev->mode_config.fb_base; 3374d8d096eSAlan Cox info->apertures->ranges[0].size = dev_priv->gtt.stolen_size; 3384d8d096eSAlan Cox } 3394d8d096eSAlan Cox 3406b7ce2c4SThomas Zimmermann drm_fb_helper_fill_info(info, fb_helper, sizes); 3414d8d096eSAlan Cox 3424d8d096eSAlan Cox info->fix.mmio_start = pci_resource_start(dev->pdev, 0); 3434d8d096eSAlan Cox info->fix.mmio_len = pci_resource_len(dev->pdev, 0); 3444d8d096eSAlan Cox 345fb2a99e1SSascha Hauer /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 3464d8d096eSAlan Cox 347e18da8ceSThomas Zimmermann dev_dbg(dev->dev, "allocated %dx%d fb\n", fb->width, fb->height); 3484d8d096eSAlan Cox 3494d8d096eSAlan Cox return 0; 350da7bdda2SDaniel Vetter out: 3514d8d096eSAlan Cox psb_gtt_free_range(dev, backing); 3524d8d096eSAlan Cox return ret; 3534d8d096eSAlan Cox } 3544d8d096eSAlan Cox 3554d8d096eSAlan Cox /** 3564d8d096eSAlan Cox * psb_user_framebuffer_create - create framebuffer 3574d8d096eSAlan Cox * @dev: our DRM device 3584d8d096eSAlan Cox * @filp: client file 3594d8d096eSAlan Cox * @cmd: mode request 3604d8d096eSAlan Cox * 3614d8d096eSAlan Cox * Create a new framebuffer backed by a userspace GEM object 3624d8d096eSAlan Cox */ 3634d8d096eSAlan Cox static struct drm_framebuffer *psb_user_framebuffer_create 3644d8d096eSAlan Cox (struct drm_device *dev, struct drm_file *filp, 3651eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *cmd) 3664d8d096eSAlan Cox { 3674d8d096eSAlan Cox struct drm_gem_object *obj; 3684d8d096eSAlan Cox 3694d8d096eSAlan Cox /* 3704d8d096eSAlan Cox * Find the GEM object and thus the gtt range object that is 3714d8d096eSAlan Cox * to back this space 3724d8d096eSAlan Cox */ 373a8ad0bd8SChris Wilson obj = drm_gem_object_lookup(filp, cmd->handles[0]); 3744d8d096eSAlan Cox if (obj == NULL) 3754d8d096eSAlan Cox return ERR_PTR(-ENOENT); 3764d8d096eSAlan Cox 3774d8d096eSAlan Cox /* Let the core code do all the work */ 3780471c9f5SThomas Zimmermann return psb_framebuffer_create(dev, cmd, obj); 3794d8d096eSAlan Cox } 3804d8d096eSAlan Cox 3816b7ce2c4SThomas Zimmermann static int psbfb_probe(struct drm_fb_helper *fb_helper, 3824d8d096eSAlan Cox struct drm_fb_helper_surface_size *sizes) 3834d8d096eSAlan Cox { 3846b7ce2c4SThomas Zimmermann struct drm_device *dev = fb_helper->dev; 3853aad16d2SAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 386fd1a5e52SPaul Kocialkowski unsigned int fb_size; 3873aad16d2SAlan Cox int bytespp; 3884d8d096eSAlan Cox 3893aad16d2SAlan Cox bytespp = sizes->surface_bpp / 8; 3903aad16d2SAlan Cox if (bytespp == 3) /* no 24bit packed */ 3913aad16d2SAlan Cox bytespp = 4; 3923aad16d2SAlan Cox 3933aad16d2SAlan Cox /* If the mode will not fit in 32bit then switch to 16bit to get 3943aad16d2SAlan Cox a console on full resolution. The X mode setting server will 3953aad16d2SAlan Cox allocate its own 32bit GEM framebuffer */ 396fd1a5e52SPaul Kocialkowski fb_size = ALIGN(sizes->surface_width * bytespp, 64) * 397fd1a5e52SPaul Kocialkowski sizes->surface_height; 398fd1a5e52SPaul Kocialkowski fb_size = ALIGN(fb_size, PAGE_SIZE); 399fd1a5e52SPaul Kocialkowski 400fd1a5e52SPaul Kocialkowski if (fb_size > dev_priv->vram_stolen_size) { 4013aad16d2SAlan Cox sizes->surface_bpp = 16; 4023aad16d2SAlan Cox sizes->surface_depth = 16; 4033aad16d2SAlan Cox } 4043aad16d2SAlan Cox 4056b7ce2c4SThomas Zimmermann return psbfb_create(fb_helper, sizes); 4064d8d096eSAlan Cox } 4074d8d096eSAlan Cox 4083a493879SThierry Reding static const struct drm_fb_helper_funcs psb_fb_helper_funcs = { 4094d8d096eSAlan Cox .fb_probe = psbfb_probe, 4104d8d096eSAlan Cox }; 4114d8d096eSAlan Cox 4126b7ce2c4SThomas Zimmermann static int psb_fbdev_destroy(struct drm_device *dev, 4136b7ce2c4SThomas Zimmermann struct drm_fb_helper *fb_helper) 4144d8d096eSAlan Cox { 4156b7ce2c4SThomas Zimmermann struct drm_framebuffer *fb = fb_helper->fb; 4164d8d096eSAlan Cox 4176b7ce2c4SThomas Zimmermann drm_fb_helper_unregister_fbi(fb_helper); 418546187c8SArchit Taneja 4196b7ce2c4SThomas Zimmermann drm_fb_helper_fini(fb_helper); 420e18da8ceSThomas Zimmermann drm_framebuffer_unregister_private(fb); 421e18da8ceSThomas Zimmermann drm_framebuffer_cleanup(fb); 4224d8d096eSAlan Cox 423e18da8ceSThomas Zimmermann if (fb->obj[0]) 424e19baf70SEmil Velikov drm_gem_object_put(fb->obj[0]); 4250a8ec2edSThomas Zimmermann kfree(fb); 4260a8ec2edSThomas Zimmermann 4274d8d096eSAlan Cox return 0; 4284d8d096eSAlan Cox } 4294d8d096eSAlan Cox 4304d8d096eSAlan Cox int psb_fbdev_init(struct drm_device *dev) 4314d8d096eSAlan Cox { 4326b7ce2c4SThomas Zimmermann struct drm_fb_helper *fb_helper; 4334d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 43401934c2aSThierry Reding int ret; 4354d8d096eSAlan Cox 4366b7ce2c4SThomas Zimmermann fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL); 4376b7ce2c4SThomas Zimmermann if (!fb_helper) { 4384d8d096eSAlan Cox dev_err(dev->dev, "no memory\n"); 4394d8d096eSAlan Cox return -ENOMEM; 4404d8d096eSAlan Cox } 4414d8d096eSAlan Cox 4426b7ce2c4SThomas Zimmermann dev_priv->fb_helper = fb_helper; 44310a23102SThierry Reding 4446b7ce2c4SThomas Zimmermann drm_fb_helper_prepare(dev, fb_helper, &psb_fb_helper_funcs); 4454d8d096eSAlan Cox 4462dea2d11SPankaj Bharadiya ret = drm_fb_helper_init(dev, fb_helper); 44701934c2aSThierry Reding if (ret) 44801934c2aSThierry Reding goto free; 4494d8d096eSAlan Cox 45076a39dbfSDaniel Vetter /* disable all the possible outputs/crtcs before entering KMS mode */ 45176a39dbfSDaniel Vetter drm_helper_disable_unused_functions(dev); 45276a39dbfSDaniel Vetter 4536b7ce2c4SThomas Zimmermann ret = drm_fb_helper_initial_config(fb_helper, 32); 45401934c2aSThierry Reding if (ret) 45501934c2aSThierry Reding goto fini; 45601934c2aSThierry Reding 4574d8d096eSAlan Cox return 0; 45801934c2aSThierry Reding 45901934c2aSThierry Reding fini: 4606b7ce2c4SThomas Zimmermann drm_fb_helper_fini(fb_helper); 46101934c2aSThierry Reding free: 4626b7ce2c4SThomas Zimmermann kfree(fb_helper); 46301934c2aSThierry Reding return ret; 4644d8d096eSAlan Cox } 4654d8d096eSAlan Cox 466bc7f2b08SKirill A. Shutemov static void psb_fbdev_fini(struct drm_device *dev) 4674d8d096eSAlan Cox { 4684d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 4694d8d096eSAlan Cox 4706b7ce2c4SThomas Zimmermann if (!dev_priv->fb_helper) 4714d8d096eSAlan Cox return; 4724d8d096eSAlan Cox 4736b7ce2c4SThomas Zimmermann psb_fbdev_destroy(dev, dev_priv->fb_helper); 4746b7ce2c4SThomas Zimmermann kfree(dev_priv->fb_helper); 4756b7ce2c4SThomas Zimmermann dev_priv->fb_helper = NULL; 4764d8d096eSAlan Cox } 4774d8d096eSAlan Cox 4784d8d096eSAlan Cox static const struct drm_mode_config_funcs psb_mode_funcs = { 4794d8d096eSAlan Cox .fb_create = psb_user_framebuffer_create, 480cdc13f68SNoralf Trønnes .output_poll_changed = drm_fb_helper_output_poll_changed, 4814d8d096eSAlan Cox }; 4824d8d096eSAlan Cox 4834d8d096eSAlan Cox static void psb_setup_outputs(struct drm_device *dev) 4844d8d096eSAlan Cox { 4854d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 4864d8d096eSAlan Cox struct drm_connector *connector; 4874d8d096eSAlan Cox 4884d8d096eSAlan Cox drm_mode_create_scaling_mode_property(dev); 4894d8d096eSAlan Cox 49013619ce5SAlan Cox /* It is ok for this to fail - we just don't get backlight control */ 49113619ce5SAlan Cox if (!dev_priv->backlight_property) 49213619ce5SAlan Cox dev_priv->backlight_property = drm_property_create_range(dev, 0, 49313619ce5SAlan Cox "backlight", 0, 100); 4944d8d096eSAlan Cox dev_priv->ops->output_init(dev); 4954d8d096eSAlan Cox 4964d8d096eSAlan Cox list_for_each_entry(connector, &dev->mode_config.connector_list, 4974d8d096eSAlan Cox head) { 498367e4408SPatrik Jakobsson struct gma_encoder *gma_encoder = gma_attached_encoder(connector); 499367e4408SPatrik Jakobsson struct drm_encoder *encoder = &gma_encoder->base; 5004d8d096eSAlan Cox int crtc_mask = 0, clone_mask = 0; 5014d8d096eSAlan Cox 5024d8d096eSAlan Cox /* valid crtcs */ 503367e4408SPatrik Jakobsson switch (gma_encoder->type) { 5044d8d096eSAlan Cox case INTEL_OUTPUT_ANALOG: 5054d8d096eSAlan Cox crtc_mask = (1 << 0); 5064d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_ANALOG); 5074d8d096eSAlan Cox break; 5084d8d096eSAlan Cox case INTEL_OUTPUT_SDVO: 509cf8efd3aSPatrik Jakobsson crtc_mask = dev_priv->ops->sdvo_mask; 5108a7827eeSVille Syrjälä clone_mask = 0; 5114d8d096eSAlan Cox break; 5124d8d096eSAlan Cox case INTEL_OUTPUT_LVDS: 513d235e64aSAlan Cox crtc_mask = dev_priv->ops->lvds_mask; 5148a7827eeSVille Syrjälä clone_mask = 0; 5154d8d096eSAlan Cox break; 5164d8d096eSAlan Cox case INTEL_OUTPUT_MIPI: 5174d8d096eSAlan Cox crtc_mask = (1 << 0); 5188a7827eeSVille Syrjälä clone_mask = 0; 5194d8d096eSAlan Cox break; 5204d8d096eSAlan Cox case INTEL_OUTPUT_MIPI2: 5214d8d096eSAlan Cox crtc_mask = (1 << 2); 5228a7827eeSVille Syrjälä clone_mask = 0; 5234d8d096eSAlan Cox break; 5244d8d096eSAlan Cox case INTEL_OUTPUT_HDMI: 525d235e64aSAlan Cox crtc_mask = dev_priv->ops->hdmi_mask; 5264d8d096eSAlan Cox clone_mask = (1 << INTEL_OUTPUT_HDMI); 5274d8d096eSAlan Cox break; 528220801bdSAlan Cox case INTEL_OUTPUT_DISPLAYPORT: 529220801bdSAlan Cox crtc_mask = (1 << 0) | (1 << 1); 5308a7827eeSVille Syrjälä clone_mask = 0; 531220801bdSAlan Cox break; 532d112a816SZhao Yakui case INTEL_OUTPUT_EDP: 533d112a816SZhao Yakui crtc_mask = (1 << 1); 5348a7827eeSVille Syrjälä clone_mask = 0; 5354d8d096eSAlan Cox } 5364d8d096eSAlan Cox encoder->possible_crtcs = crtc_mask; 5374d8d096eSAlan Cox encoder->possible_clones = 538a3d5d75fSPatrik Jakobsson gma_connector_clones(dev, clone_mask); 5394d8d096eSAlan Cox } 5404d8d096eSAlan Cox } 5414d8d096eSAlan Cox 5424d8d096eSAlan Cox void psb_modeset_init(struct drm_device *dev) 5434d8d096eSAlan Cox { 5444d8d096eSAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 5454d8d096eSAlan Cox struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; 5464d8d096eSAlan Cox int i; 5474d8d096eSAlan Cox 5484d8d096eSAlan Cox drm_mode_config_init(dev); 5494d8d096eSAlan Cox 5504d8d096eSAlan Cox dev->mode_config.min_width = 0; 5514d8d096eSAlan Cox dev->mode_config.min_height = 0; 5524d8d096eSAlan Cox 553e6ecefaaSLaurent Pinchart dev->mode_config.funcs = &psb_mode_funcs; 5544d8d096eSAlan Cox 5554d8d096eSAlan Cox /* set memory base */ 556dffc9cebSAlan Cox /* Oaktrail and Poulsbo should use BAR 2*/ 5574d8d096eSAlan Cox pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *) 5584d8d096eSAlan Cox &(dev->mode_config.fb_base)); 5594d8d096eSAlan Cox 5604d8d096eSAlan Cox /* num pipes is 2 for PSB but 1 for Mrst */ 5614d8d096eSAlan Cox for (i = 0; i < dev_priv->num_pipe; i++) 5624d8d096eSAlan Cox psb_intel_crtc_init(dev, i, mode_dev); 5634d8d096eSAlan Cox 564cbbd379aSPatrik Jakobsson dev->mode_config.max_width = 4096; 565cbbd379aSPatrik Jakobsson dev->mode_config.max_height = 4096; 5664d8d096eSAlan Cox 5674d8d096eSAlan Cox psb_setup_outputs(dev); 568d235e64aSAlan Cox 569d235e64aSAlan Cox if (dev_priv->ops->errata) 570d235e64aSAlan Cox dev_priv->ops->errata(dev); 5714ab2c7f1SAlan Cox 5724ab2c7f1SAlan Cox dev_priv->modeset = true; 5734d8d096eSAlan Cox } 5744d8d096eSAlan Cox 5754d8d096eSAlan Cox void psb_modeset_cleanup(struct drm_device *dev) 5764d8d096eSAlan Cox { 5774ab2c7f1SAlan Cox struct drm_psb_private *dev_priv = dev->dev_private; 5784ab2c7f1SAlan Cox if (dev_priv->modeset) { 5794d8d096eSAlan Cox drm_kms_helper_poll_fini(dev); 5804d8d096eSAlan Cox psb_fbdev_fini(dev); 5814d8d096eSAlan Cox drm_mode_config_cleanup(dev); 5824d8d096eSAlan Cox } 5834ab2c7f1SAlan Cox } 584