diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/framebuffer.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/framebuffer.c | 76 |
1 files changed, 16 insertions, 60 deletions
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c index cb0a2ae916e0..adefae58b5fc 100644 --- a/drivers/gpu/drm/gma500/framebuffer.c +++ b/drivers/gpu/drm/gma500/framebuffer.c @@ -33,6 +33,7 @@ #include <drm/drm.h> #include <drm/drm_crtc.h> #include <drm/drm_fb_helper.h> +#include <drm/drm_gem_framebuffer_helper.h> #include "psb_drv.h" #include "psb_intel_reg.h" @@ -40,14 +41,9 @@ #include "framebuffer.h" #include "gtt.h" -static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb); -static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, - struct drm_file *file_priv, - unsigned int *handle); - static const struct drm_framebuffer_funcs psb_fb_funcs = { - .destroy = psb_user_framebuffer_destroy, - .create_handle = psb_user_framebuffer_create_handle, + .destroy = drm_gem_fb_destroy, + .create_handle = drm_gem_fb_create_handle, }; #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16) @@ -96,34 +92,36 @@ static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info) struct psb_fbdev *fbdev = info->par; struct psb_framebuffer *psbfb = &fbdev->pfb; struct drm_device *dev = psbfb->base.dev; + struct gtt_range *gtt = to_gtt_range(psbfb->base.obj[0]); /* * We have to poke our nose in here. The core fb code assumes * panning is part of the hardware that can be invoked before * the actual fb is mapped. In our case that isn't quite true. */ - if (psbfb->gtt->npage) { + if (gtt->npage) { /* GTT roll shifts in 4K pages, we need to shift the right number of pages */ int pages = info->fix.line_length >> 12; - psb_gtt_roll(dev, psbfb->gtt, var->yoffset * pages); + psb_gtt_roll(dev, gtt, var->yoffset * pages); } return 0; } -static int psbfb_vm_fault(struct vm_fault *vmf) +static vm_fault_t psbfb_vm_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct psb_framebuffer *psbfb = vma->vm_private_data; struct drm_device *dev = psbfb->base.dev; struct drm_psb_private *dev_priv = dev->dev_private; + struct gtt_range *gtt = to_gtt_range(psbfb->base.obj[0]); int page_num; int i; unsigned long address; - int ret; + vm_fault_t ret = VM_FAULT_SIGBUS; unsigned long pfn; unsigned long phys_addr = (unsigned long)dev_priv->stolen_base + - psbfb->gtt->offset; + gtt->offset; page_num = vma_pages(vma); address = vmf->address - (vmf->pgoff << PAGE_SHIFT); @@ -133,18 +131,14 @@ static int psbfb_vm_fault(struct vm_fault *vmf) for (i = 0; i < page_num; i++) { pfn = (phys_addr >> PAGE_SHIFT); - ret = vm_insert_mixed(vma, address, + ret = vmf_insert_mixed(vma, address, __pfn_to_pfn_t(pfn, PFN_DEV)); - if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0))) + if (unlikely(ret & VM_FAULT_ERROR)) break; - else if (unlikely(ret != 0)) { - ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS; - return ret; - } address += PAGE_SIZE; phys_addr += PAGE_SIZE; } - return VM_FAULT_NOPAGE; + return ret; } static void psbfb_vm_open(struct vm_area_struct *vma) @@ -246,7 +240,7 @@ static int psb_framebuffer_init(struct drm_device *dev, return -EINVAL; drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd); - fb->gtt = gt; + fb->base.obj[0] = >->gem; ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs); if (ret) { dev_err(dev->dev, "framebuffer init failed: %d\n", ret); @@ -518,8 +512,8 @@ static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev) drm_framebuffer_unregister_private(&psbfb->base); drm_framebuffer_cleanup(&psbfb->base); - if (psbfb->gtt) - drm_gem_object_unreference_unlocked(&psbfb->gtt->gem); + if (psbfb->base.obj[0]) + drm_gem_object_put_unlocked(psbfb->base.obj[0]); return 0; } @@ -576,44 +570,6 @@ static void psb_fbdev_fini(struct drm_device *dev) dev_priv->fbdev = NULL; } -/** - * 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; - - /* 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 = drm_fb_helper_output_poll_changed, |