Commit 1471ca9a authored by Marcin Slusarz's avatar Marcin Slusarz Committed by Dave Airlie
Browse files

fbdev: allow passing more than one aperture for handoff 



It removes a hack from nouveau code which had to detect which
region to pass to kick vesafb/efifb.

Signed-off-by: default avatarMarcin 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: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 3da1f33e

drivers/gpu/drm/i915/intel_fb.c

+8 −3
Original line number Diff line number Diff line
@@ -128,11 +128,16 @@ static int intelfb_create(struct intel_fbdev *ifbdev, 
	info->fbops = &intelfb_ops;



	/* 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;

drivers/gpu/drm/nouveau/nouveau_fbcon.c

+25 −59
Original line number Diff line number Diff line
@@ -152,44 +152,6 @@ static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green, 
	*blue = nv_crtc->lut.b[regno];

}



#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



static void

nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)

{
@@ -219,7 +181,9 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev, 
	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 = sizes->surface_width;
@@ -299,28 +263,30 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev, 
	drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->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;

drivers/gpu/drm/radeon/radeon_fb.c

+7 −2
Original line number Diff line number Diff line
@@ -236,8 +236,13 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev, 
	drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->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;

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

+8 −2
Original line number Diff line number Diff line
@@ -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);

drivers/video/efifb.c

+8 −3
Original line number Diff line number Diff line
@@ -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) {

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