It simplifies nouveau code by removal of detection which region to pass to kick vesafb/efifb.
Signed-off-by: Marcin Slusarz marcin.slusarz@gmail.com Cc: Eric Anholt eric@anholt.net Cc: Ben Skeggs bskeggs@redhat.com Cc: Thomas Hellstrom thellstrom@vmware.com Cc: Dave Airlie airlied@redhat.com Cc: Peter Jones pjones@redhat.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Benjamin Herrenschmidt benh@kernel.crashing.org --- v2 - rebase after drop of patch 1/3 --- drivers/gpu/drm/i915/intel_fb.c | 11 +++- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 84 +++++++++--------------------- drivers/gpu/drm/radeon/radeon_fb.c | 9 +++- drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 10 +++- drivers/video/efifb.c | 11 +++- drivers/video/fbmem.c | 29 ++++++++++- drivers/video/fbsysfs.c | 1 + drivers/video/offb.c | 28 ++++++---- drivers/video/vesafb.c | 11 +++- include/linux/fb.h | 16 +++++- 10 files changed, 122 insertions(+), 88 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index 8cd791d..a9192ab 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -192,11 +192,16 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
/* setup aperture base/size for vesafb takeover */ - info->aperture_base = dev->mode_config.fb_base; + info->apertures = alloc_apertures(1); + if (!info->apertures) { + ret = -ENOMEM; + goto out_unpin; + } + info->apertures->ranges[0].base = dev->mode_config.fb_base; if (IS_I9XX(dev)) - info->aperture_size = pci_resource_len(dev->pdev, 2); + info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2); else - info->aperture_size = pci_resource_len(dev->pdev, 0); + info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0);
info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset; info->fix.smem_len = size; diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 68cedd9..206368b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -161,44 +161,6 @@ static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = { .gamma_get = nouveau_fbcon_gamma_get };
-#if defined(__i386__) || defined(__x86_64__) -static bool -nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev) -{ - struct pci_dev *pdev = dev->pdev; - int ramin; - - if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB && - screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) - return false; - - if (screen_info.lfb_base < pci_resource_start(pdev, 1)) - goto not_fb; - - if (screen_info.lfb_base + screen_info.lfb_size >= - pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1)) - goto not_fb; - - return true; -not_fb: - ramin = 2; - if (pci_resource_len(pdev, ramin) == 0) { - ramin = 3; - if (pci_resource_len(pdev, ramin) == 0) - return false; - } - - if (screen_info.lfb_base < pci_resource_start(pdev, ramin)) - return false; - - if (screen_info.lfb_base + screen_info.lfb_size >= - pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin)) - return false; - - return true; -} -#endif - void nouveau_fbcon_zfill(struct drm_device *dev) { @@ -231,7 +193,9 @@ nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, struct nouveau_framebuffer *nouveau_fb; struct nouveau_bo *nvbo; struct drm_mode_fb_cmd mode_cmd; - struct device *device = &dev->pdev->dev; + struct pci_dev *pdev = dev->pdev; + struct device *device = &pdev->dev; + struct apertures_struct *aper; int size, ret;
mode_cmd.width = surface_width; @@ -314,28 +278,30 @@ nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, drm_fb_helper_fill_var(info, fb, fb_width, fb_height);
/* FIXME: we really shouldn't expose mmio space at all */ - info->fix.mmio_start = pci_resource_start(dev->pdev, 1); - info->fix.mmio_len = pci_resource_len(dev->pdev, 1); + info->fix.mmio_start = pci_resource_start(pdev, 1); + info->fix.mmio_len = pci_resource_len(pdev, 1);
/* Set aperture base/size for vesafb takeover */ -#if defined(__i386__) || defined(__x86_64__) - if (nouveau_fbcon_has_vesafb_or_efifb(dev)) { - /* Some NVIDIA VBIOS' are stupid and decide to put the - * framebuffer in the middle of the PRAMIN BAR for - * whatever reason. We need to know the exact lfb_base - * to get vesafb kicked off, and the only reliable way - * we have left is to find out lfb_base the same way - * vesafb did. - */ - info->aperture_base = screen_info.lfb_base; - info->aperture_size = screen_info.lfb_size; - if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) - info->aperture_size *= 65536; - } else -#endif - { - info->aperture_base = info->fix.mmio_start; - info->aperture_size = info->fix.mmio_len; + aper = info->apertures = alloc_apertures(3); + if (!info->apertures) { + ret = -ENOMEM; + goto out_unref; + } + + aper->ranges[0].base = pci_resource_start(pdev, 1); + aper->ranges[0].size = pci_resource_len(pdev, 1); + aper->count = 1; + + if (pci_resource_len(pdev, 2)) { + aper->ranges[aper->count].base = pci_resource_start(pdev, 2); + aper->ranges[aper->count].size = pci_resource_len(pdev, 2); + aper->count++; + } + + if (pci_resource_len(pdev, 3)) { + aper->ranges[aper->count].base = pci_resource_start(pdev, 3); + aper->ranges[aper->count].size = pci_resource_len(pdev, 3); + aper->count++; }
info->pixmap.size = 64*1024; diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 8fccbf2..2b57cb4 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -263,8 +263,13 @@ int radeonfb_create(struct drm_device *dev, drm_fb_helper_fill_var(info, fb, fb_width, fb_height);
/* setup aperture base/size for vesafb takeover */ - info->aperture_base = rdev->ddev->mode_config.fb_base; - info->aperture_size = rdev->mc.real_vram_size; + info->apertures = alloc_apertures(1); + if (!info->apertures) { + ret = -ENOMEM; + goto out_unref; + } + info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base; + info->apertures->ranges[0].size = rdev->mc.real_vram_size;
info->fix.mmio_start = 0; info->fix.mmio_len = 0; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c index a933670..0248c6b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c @@ -559,8 +559,13 @@ int vmw_fb_init(struct vmw_private *vmw_priv) info->pixmap.scan_align = 1; #endif
- info->aperture_base = vmw_priv->vram_start; - info->aperture_size = vmw_priv->vram_size; + info->apertures = alloc_apertures(1); + if (!info->apertures) { + ret = -ENOMEM; + goto err_aper; + } + info->apertures->ranges[0].base = vmw_priv->vram_start; + info->apertures->ranges[0].size = vmw_priv->vram_size;
/* * Dirty & Deferred IO @@ -580,6 +585,7 @@ int vmw_fb_init(struct vmw_private *vmw_priv)
err_defio: fb_deferred_io_cleanup(info); +err_aper: ttm_bo_kunmap(&par->map); err_unref: ttm_bo_unref((struct ttm_buffer_object **)&par->vmw_bo); diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c index 581d2db..3b98656 100644 --- a/drivers/video/efifb.c +++ b/drivers/video/efifb.c @@ -165,7 +165,7 @@ static void efifb_destroy(struct fb_info *info) { if (info->screen_base) iounmap(info->screen_base); - release_mem_region(info->aperture_base, info->aperture_size); + release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size); framebuffer_release(info); }
@@ -289,8 +289,13 @@ static int __devinit efifb_probe(struct platform_device *dev) info->pseudo_palette = info->par; info->par = NULL;
- info->aperture_base = efifb_fix.smem_start; - info->aperture_size = size_remap; + info->apertures = alloc_apertures(1); + if (!info->apertures) { + err = -ENOMEM; + goto err_release_fb; + } + info->apertures->ranges[0].base = efifb_fix.smem_start; + info->apertures->ranges[0].size = size_remap;
info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len); if (!info->screen_base) { diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index a15b44e..03f2dc2 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1468,16 +1468,39 @@ static int fb_check_foreignness(struct fb_info *fi) return 0; }
-static bool fb_do_apertures_overlap(struct fb_info *gen, struct fb_info *hw) +static bool apertures_overlap(struct aperture *gen, struct aperture *hw) { /* is the generic aperture base the same as the HW one */ - if (gen->aperture_base == hw->aperture_base) + if (gen->base == hw->base) return true; /* is the generic aperture base inside the hw base->hw base+size */ - if (gen->aperture_base > hw->aperture_base && gen->aperture_base <= hw->aperture_base + hw->aperture_size) + if (gen->base > hw->base && gen->base <= hw->base + hw->size) return true; return false; } + +static bool fb_do_apertures_overlap(struct fb_info *gen, struct fb_info *hw) +{ + int i, j; + struct apertures_struct *hwa = hw->apertures; + struct apertures_struct *gena = gen->apertures; + if (!hwa || !gena) + return false; + + for (i = 0; i < hwa->count; ++i) { + struct aperture *h = &hwa->ranges[i]; + for (j = 0; j < gena->count; ++j) { + struct aperture *g = &gena->ranges[j]; + printk(KERN_DEBUG "checking generic (%llx %llx) vs hw (%llx %llx)\n", + g->base, g->size, h->base, h->size); + if (apertures_overlap(g, h)) + return true; + } + } + + return false; +} + /** * register_framebuffer - registers a frame buffer device * @fb_info: frame buffer info structure diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c index d4a2c11..fd5519b 100644 --- a/drivers/video/fbsysfs.c +++ b/drivers/video/fbsysfs.c @@ -79,6 +79,7 @@ EXPORT_SYMBOL(framebuffer_alloc); */ void framebuffer_release(struct fb_info *info) { + kfree(info->apertures); kfree(info); } EXPORT_SYMBOL(framebuffer_release); diff --git a/drivers/video/offb.c b/drivers/video/offb.c index b043ac8..3d202b2 100644 --- a/drivers/video/offb.c +++ b/drivers/video/offb.c @@ -286,7 +286,7 @@ static void offb_destroy(struct fb_info *info) { if (info->screen_base) iounmap(info->screen_base); - release_mem_region(info->aperture_base, info->aperture_size); + release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size); framebuffer_release(info); }
@@ -492,8 +492,11 @@ static void __init offb_init_fb(const char *name, const char *full_name, var->vmode = FB_VMODE_NONINTERLACED;
/* set offb aperture size for generic probing */ - info->aperture_base = address; - info->aperture_size = fix->smem_len; + info->apertures = alloc_apertures(1); + if (!info->apertures) + goto out_aper; + info->apertures->ranges[0].base = address; + info->apertures->ranges[0].size = fix->smem_len;
info->fbops = &offb_ops; info->screen_base = ioremap(address, fix->smem_len); @@ -502,17 +505,20 @@ static void __init offb_init_fb(const char *name, const char *full_name,
fb_alloc_cmap(&info->cmap, 256, 0);
- if (register_framebuffer(info) < 0) { - iounmap(par->cmap_adr); - par->cmap_adr = NULL; - iounmap(info->screen_base); - framebuffer_release(info); - release_mem_region(res_start, res_size); - return; - } + if (register_framebuffer(info) < 0) + goto out_err;
printk(KERN_INFO "fb%d: Open Firmware frame buffer device on %s\n", info->node, full_name); + return; + +out_err: + iounmap(info->screen_base); +out_aper: + iounmap(par->cmap_adr); + par->cmap_adr = NULL; + framebuffer_release(info); + release_mem_region(res_start, res_size); }
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c index ef4128c..5de9ee1 100644 --- a/drivers/video/vesafb.c +++ b/drivers/video/vesafb.c @@ -178,7 +178,7 @@ static void vesafb_destroy(struct fb_info *info) { if (info->screen_base) iounmap(info->screen_base); - release_mem_region(info->aperture_base, info->aperture_size); + release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size); framebuffer_release(info); }
@@ -296,8 +296,13 @@ static int __devinit vesafb_probe(struct platform_device *dev) info->par = NULL;
/* set vesafb aperture size for generic probing */ - info->aperture_base = screen_info.lfb_base; - info->aperture_size = size_total; + info->apertures = alloc_apertures(1); + if (!info->apertures) { + err = -ENOMEM; + goto err; + } + info->apertures->ranges[0].base = screen_info.lfb_base; + info->apertures->ranges[0].size = size_total;
info->screen_base = ioremap(vesafb_fix.smem_start, vesafb_fix.smem_len); if (!info->screen_base) { diff --git a/include/linux/fb.h b/include/linux/fb.h index c10163b..9605b81 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -862,10 +862,22 @@ struct fb_info { /* we need the PCI or similiar aperture base/size not smem_start/size as smem_start may just be an object allocated inside the aperture so may not actually overlap */ - resource_size_t aperture_base; - resource_size_t aperture_size; + struct apertures_struct { + unsigned int count; + struct aperture { + resource_size_t base; + resource_size_t size; + } ranges[0]; + } *apertures; };
+static inline struct apertures_struct *alloc_apertures(unsigned int max_num) { + struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct) + + max_num * sizeof(struct aperture), GFP_KERNEL); + a->count = max_num; + return a; +} + #ifdef MODULE #define FBINFO_DEFAULT FBINFO_MODULE #else