/* Map the framebuffer from the card and configure the core */
static int mga_vram_init(struct mga_device *mdev)
{
void __iomem *mem;
struct apertures_struct *aper = alloc_apertures(1);
if (!aper)
return -ENOMEM;
/* BAR 0 is VRAM */
mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
aper->ranges[0].base = mdev->mc.vram_base;
aper->ranges[0].size = mdev->mc.vram_window;
remove_conflicting_framebuffers(aper, "mgafb", true);
kfree(aper);
if (!devm_request_mem_region(mdev->dev->dev, mdev->mc.vram_base, mdev->mc.vram_window,
"mgadrmfb_vram")) {
DRM_ERROR("can't reserve VRAM\n");
return -ENXIO;
}
mem = pci_iomap(mdev->dev->pdev, 0, 0);
mdev->mc.vram_size = mga_probe_vram(mdev, mem);
pci_iounmap(mdev->dev->pdev, mem);
return 0;
}
static struct apertures_struct *nouveau_get_apertures(struct drm_device *dev)
{
struct pci_dev *pdev = dev->pdev;
struct apertures_struct *aper = alloc_apertures(3);
if (!aper)
return NULL;
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++;
}
return aper;
}
static int bochs_kick_out_firmware_fb(struct pci_dev *pdev)
{
struct apertures_struct *ap;
ap = alloc_apertures(1);
if (!ap)
return -ENOMEM;
ap->ranges[0].base = pci_resource_start(pdev, 0);
ap->ranges[0].size = pci_resource_len(pdev, 0);
remove_conflicting_framebuffers(ap, "bochsdrmfb", false);
kfree(ap);
return 0;
}
static void sun4i_remove_framebuffers(void)
{
struct apertures_struct *ap;
ap = alloc_apertures(1);
if (!ap)
return;
/* The framebuffer can be located anywhere in RAM */
ap->ranges[0].base = 0;
ap->ranges[0].size = ~0;
drm_fb_helper_remove_conflicting_framebuffers(ap, "sun4i-drm-fb", false);
kfree(ap);
}
static void radeon_kick_out_firmware_fb(struct pci_dev *pdev)
{
struct apertures_struct *ap;
bool primary = false;
ap = alloc_apertures(1);
ap->ranges[0].base = pci_resource_start(pdev, 0);
ap->ranges[0].size = pci_resource_len(pdev, 0);
#ifdef CONFIG_X86
primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
#endif
remove_conflicting_framebuffers(ap, "radeondrmfb", primary);
kfree(ap);
}
/* Get framebuffer memory from Hyper-V video pci space */
static int hvfb_getmem(struct fb_info *info)
{
struct pci_dev *pdev;
ulong fb_phys;
void __iomem *fb_virt;
pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT,
PCI_DEVICE_ID_HYPERV_VIDEO, NULL);
if (!pdev) {
pr_err("Unable to find PCI Hyper-V video\n");
return -ENODEV;
}
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
pci_resource_len(pdev, 0) < screen_fb_size)
goto err1;
fb_phys = pci_resource_end(pdev, 0) - screen_fb_size + 1;
if (!request_mem_region(fb_phys, screen_fb_size, KBUILD_MODNAME))
goto err1;
fb_virt = ioremap(fb_phys, screen_fb_size);
if (!fb_virt)
goto err2;
info->apertures = alloc_apertures(1);
if (!info->apertures)
goto err3;
info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
info->fix.smem_start = fb_phys;
info->fix.smem_len = screen_fb_size;
info->screen_base = fb_virt;
info->screen_size = screen_fb_size;
pci_dev_put(pdev);
return 0;
err3:
iounmap(fb_virt);
err2:
release_mem_region(fb_phys, screen_fb_size);
err1:
pci_dev_put(pdev);
return -ENOMEM;
}
static void vc4_kick_out_firmware_fb(void)
{
struct apertures_struct *ap;
ap = alloc_apertures(1);
if (!ap)
return;
/* Since VC4 is a UMA device, the simplefb node may have been
* located anywhere in memory.
*/
ap->ranges[0].base = 0;
ap->ranges[0].size = ~0;
drm_fb_helper_remove_conflicting_framebuffers(ap, "vc4drmfb", false);
kfree(ap);
}
static void virtio_pci_kick_out_firmware_fb(struct pci_dev *pci_dev)
{
struct apertures_struct *ap;
bool primary;
ap = alloc_apertures(1);
if (!ap)
return;
ap->ranges[0].base = pci_resource_start(pci_dev, 0);
ap->ranges[0].size = pci_resource_len(pci_dev, 0);
primary = pci_dev->resource[PCI_ROM_RESOURCE].flags
& IORESOURCE_ROM_SHADOW;
drm_fb_helper_remove_conflicting_framebuffers(ap, "virtiodrmfb", primary);
kfree(ap);
}
static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
{
struct apertures_struct *ap;
bool primary = false;
ap = alloc_apertures(1);
if (!ap)
return -ENOMEM;
ap->ranges[0].base = pci_resource_start(pdev, 0);
ap->ranges[0].size = pci_resource_len(pdev, 0);
#ifdef CONFIG_X86
primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
#endif
drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
kfree(ap);
return 0;
}
static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
{
struct apertures_struct *ap;
struct pci_dev *pdev = dev_priv->dev->pdev;
bool primary;
int ret;
ap = alloc_apertures(1);
if (!ap)
return -ENOMEM;
ap->ranges[0].base = dev_priv->gtt.mappable_base;
ap->ranges[0].size = dev_priv->gtt.mappable_end;
primary =
pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
ret = remove_conflicting_framebuffers(ap, "inteldrmfb", primary);
kfree(ap);
return ret;
}
static void __init offb_init_fb(const char *name, const char *full_name,
int width, int height, int depth,
int pitch, unsigned long address,
int foreign_endian, struct device_node *dp)
{
unsigned long res_size = pitch * height * (depth + 7) / 8;
struct offb_par *par = &default_par;
unsigned long res_start = address;
struct fb_fix_screeninfo *fix;
struct fb_var_screeninfo *var;
struct fb_info *info;
if (!request_mem_region(res_start, res_size, "offb"))
return;
printk(KERN_INFO
"Using unsupported %dx%d %s at %lx, depth=%d, pitch=%d\n",
width, height, name, address, depth, pitch);
if (depth != 8 && depth != 15 && depth != 16 && depth != 32) {
printk(KERN_ERR "%s: can't use depth = %d\n", full_name,
depth);
release_mem_region(res_start, res_size);
return;
}
info = framebuffer_alloc(sizeof(u32) * 16, NULL);
if (info == 0) {
release_mem_region(res_start, res_size);
return;
}
fix = &info->fix;
var = &info->var;
info->par = par;
strcpy(fix->id, "OFfb ");
strncat(fix->id, name, sizeof(fix->id) - sizeof("OFfb "));
fix->id[sizeof(fix->id) - 1] = '\0';
var->xres = var->xres_virtual = width;
var->yres = var->yres_virtual = height;
fix->line_length = pitch;
fix->smem_start = address;
fix->smem_len = pitch * height;
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
par->cmap_type = cmap_unknown;
if (depth == 8)
offb_init_palette_hacks(info, dp, name, address);
else
fix->visual = FB_VISUAL_TRUECOLOR;
var->xoffset = var->yoffset = 0;
switch (depth) {
case 8:
var->bits_per_pixel = 8;
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 0;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->transp.offset = 0;
var->transp.length = 0;
break;
case 15: /* RGB 555 */
var->bits_per_pixel = 16;
var->red.offset = 10;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 5;
var->blue.offset = 0;
var->blue.length = 5;
var->transp.offset = 0;
var->transp.length = 0;
break;
case 16: /* RGB 565 */
var->bits_per_pixel = 16;
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.offset = 0;
var->blue.length = 5;
var->transp.offset = 0;
var->transp.length = 0;
break;
case 32: /* RGB 888 */
var->bits_per_pixel = 32;
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->transp.offset = 24;
var->transp.length = 8;
break;
}
var->red.msb_right = var->green.msb_right = var->blue.msb_right =
var->transp.msb_right = 0;
var->grayscale = 0;
var->nonstd = 0;
var->activate = 0;
var->height = var->width = -1;
var->pixclock = 10000;
var->left_margin = var->right_margin = 16;
var->upper_margin = var->lower_margin = 16;
var->hsync_len = var->vsync_len = 8;
var->sync = 0;
var->vmode = FB_VMODE_NONINTERLACED;
/* set offb aperture size for generic probing */
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);
info->pseudo_palette = (void *) (info + 1);
info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE | foreign_endian;
fb_alloc_cmap(&info->cmap, 256, 0);
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);
}
static int intelfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev =
container_of(helper, struct intel_fbdev, helper);
struct intel_framebuffer *intel_fb = ifbdev->fb;
struct drm_device *dev = helper->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_i915_gem_object *obj;
int size, ret;
mutex_lock(&dev->struct_mutex);
if (!intel_fb || WARN_ON(!intel_fb->obj)) {
DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n");
ret = intelfb_alloc(helper, sizes);
if (ret)
goto out_unlock;
intel_fb = ifbdev->fb;
} else {
DRM_DEBUG_KMS("re-using BIOS fb\n");
sizes->fb_width = intel_fb->base.width;
sizes->fb_height = intel_fb->base.height;
}
obj = intel_fb->obj;
size = obj->base.size;
info = framebuffer_alloc(0, &dev->pdev->dev);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
}
info->par = helper;
fb = &ifbdev->fb->base;
ifbdev->helper.fb = fb;
ifbdev->helper.fbdev = info;
strcpy(info->fix.id, "inteldrmfb");
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unpin;
}
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out_unpin;
}
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size = dev_priv->gtt.mappable_end;
info->fix.smem_start = dev->mode_config.fb_base + i915_gem_obj_ggtt_offset(obj);
info->fix.smem_len = size;
info->screen_base =
ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj),
size);
if (!info->screen_base) {
ret = -ENOSPC;
goto out_unpin;
}
info->screen_size = size;
/* This driver doesn't need a VT switch to restore the mode on resume */
info->skip_vt_switch = true;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
/* If the object is shmemfs backed, it will have given us zeroed pages.
* If the object is stolen however, it will be full of whatever
* garbage was left in there.
*/
if (ifbdev->fb->obj->stolen)
memset_io(info->screen_base, 0, info->screen_size);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08lx, bo %p\n",
fb->width, fb->height,
i915_gem_obj_ggtt_offset(obj), obj);
mutex_unlock(&dev->struct_mutex);
vga_switcheroo_client_fb_set(dev->pdev, info);
return 0;
out_unpin:
i915_gem_object_ggtt_unpin(obj);
drm_gem_object_unreference(&obj->base);
out_unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}
static int intelfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev =
container_of(helper, struct intel_fbdev, helper);
struct drm_device *dev = helper->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd = {};
struct drm_i915_gem_object *obj;
struct device *device = &dev->pdev->dev;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = ALIGN(size, PAGE_SIZE);
obj = i915_gem_object_create_stolen(dev, size);
if (obj == NULL)
obj = i915_gem_alloc_object(dev, size);
if (!obj) {
DRM_ERROR("failed to allocate framebuffer\n");
ret = -ENOMEM;
goto out;
}
mutex_lock(&dev->struct_mutex);
/* Flush everything out, we'll be doing GTT only from now on */
ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
if (ret) {
DRM_ERROR("failed to pin fb: %d\n", ret);
goto out_unref;
}
info = framebuffer_alloc(0, device);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
}
info->par = helper;
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_fbrelease;
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
ifbdev->helper.fbdev = info;
strncpy(info->fix.id, "inteldrmfb", sizeof(info->fix.id) - 1);
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_fbdestroy;
}
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out_decmap;
}
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size = dev_priv->gtt.mappable_end;
info->fix.smem_start = dev->mode_config.fb_base + i915_gem_obj_ggtt_offset(obj);
info->fix.smem_len = size;
info->screen_base =
ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj),
size);
if (!info->screen_base) {
ret = -ENOSPC;
goto out_freeap;
}
info->screen_size = size;
/* This driver doesn't need a VT switch to restore the mode on resume */
info->skip_vt_switch = true;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
/* If the object is shmemfs backed, it will have given us zeroed pages.
* If the object is stolen however, it will be full of whatever
* garbage was left in there.
*/
if (ifbdev->ifb.obj->stolen)
memset_io(info->screen_base, 0, info->screen_size);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08lx, bo %p\n",
fb->width, fb->height,
i915_gem_obj_ggtt_offset(obj), obj);
mutex_unlock(&dev->struct_mutex);
vga_switcheroo_client_fb_set(dev->pdev, info);
return 0;
out_freeap:
kfree(info->apertures);
out_decmap:
fb_dealloc_cmap(&info->cmap);
out_fbdestroy:
fb->funcs->destroy(fb);
out_fbrelease:
kfree(info);
out_unpin:
i915_gem_object_unpin(obj);
out_unref:
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
out:
return ret;
}
static int intelfb_create(struct intel_fbdev *ifbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = ifbdev->helper.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_i915_gem_object *obj;
struct device *device = &dev->pdev->dev;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = ALIGN(size, PAGE_SIZE);
obj = i915_gem_alloc_object(dev, size);
if (!obj) {
DRM_ERROR("failed to allocate framebuffer\n");
ret = -ENOMEM;
goto out;
}
mutex_lock(&dev->struct_mutex);
/* Flush everything out, we'll be doing GTT only from now on */
ret = intel_pin_and_fence_fb_obj(dev, obj, false);
if (ret) {
DRM_ERROR("failed to pin fb: %d\n", ret);
goto out_unref;
}
info = framebuffer_alloc(0, device);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
}
info->par = ifbdev;
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_unpin;
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
ifbdev->helper.fbdev = info;
strcpy(info->fix.id, "inteldrmfb");
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unpin;
}
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out_unpin;
}
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size =
dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
info->fix.smem_len = size;
info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
if (!info->screen_base) {
ret = -ENOSPC;
goto out_unpin;
}
info->screen_size = size;
// memset(info->screen_base, 0, size);
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
info->pixmap.size = 64*1024;
info->pixmap.buf_align = 8;
info->pixmap.access_align = 32;
info->pixmap.flags = FB_PIXMAP_SYSTEM;
info->pixmap.scan_align = 1;
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
fb->width, fb->height,
obj->gtt_offset, obj);
mutex_unlock(&dev->struct_mutex);
vga_switcheroo_client_fb_set(dev->pdev, info);
return 0;
out_unpin:
i915_gem_object_unpin(obj);
out_unref:
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
out:
return ret;
}
/* Get framebuffer memory from Hyper-V video pci space */
static int hvfb_getmem(struct fb_info *info)
{
struct hvfb_par *par = info->par;
struct pci_dev *pdev = NULL;
void __iomem *fb_virt;
int gen2vm = efi_enabled(EFI_BOOT);
int ret;
par->mem.name = KBUILD_MODNAME;
par->mem.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
if (gen2vm) {
ret = allocate_resource(&hyperv_mmio, &par->mem,
screen_fb_size,
0, -1,
screen_fb_size,
NULL, NULL);
if (ret != 0) {
pr_err("Unable to allocate framebuffer memory\n");
return -ENODEV;
}
} else {
pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT,
PCI_DEVICE_ID_HYPERV_VIDEO, NULL);
if (!pdev) {
pr_err("Unable to find PCI Hyper-V video\n");
return -ENODEV;
}
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
pci_resource_len(pdev, 0) < screen_fb_size)
goto err1;
par->mem.end = pci_resource_end(pdev, 0);
par->mem.start = par->mem.end - screen_fb_size + 1;
ret = request_resource(&pdev->resource[0], &par->mem);
if (ret != 0) {
pr_err("Unable to request framebuffer memory\n");
goto err1;
}
}
fb_virt = ioremap(par->mem.start, screen_fb_size);
if (!fb_virt)
goto err2;
info->apertures = alloc_apertures(1);
if (!info->apertures)
goto err3;
if (gen2vm) {
info->apertures->ranges[0].base = screen_info.lfb_base;
info->apertures->ranges[0].size = screen_info.lfb_size;
remove_conflicting_framebuffers(info->apertures,
KBUILD_MODNAME, false);
} else {
info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
}
info->fix.smem_start = par->mem.start;
info->fix.smem_len = screen_fb_size;
info->screen_base = fb_virt;
info->screen_size = screen_fb_size;
if (!gen2vm)
pci_dev_put(pdev);
return 0;
err3:
iounmap(fb_virt);
err2:
release_resource(&par->mem);
err1:
if (!gen2vm)
pci_dev_put(pdev);
return -ENOMEM;
}
static int radeonfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct radeon_fbdev *rfbdev =
container_of(helper, struct radeon_fbdev, helper);
struct radeon_device *rdev = rfbdev->rdev;
struct fb_info *info;
struct drm_framebuffer *fb = NULL;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_gem_object *gobj = NULL;
struct radeon_bo *rbo = NULL;
struct device *device = &rdev->pdev->dev;
int ret;
unsigned long tmp;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
/* avivo can't scanout real 24bpp */
if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
sizes->surface_bpp = 32;
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon object %d\n", ret);
return ret;
}
rbo = gem_to_radeon_bo(gobj);
/* okay we have an object now allocate the framebuffer */
info = framebuffer_alloc(0, device);
if (info == NULL) {
ret = -ENOMEM;
goto out_unref;
}
info->par = rfbdev;
ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
if (ret) {
DRM_ERROR("failed to initialize framebuffer %d\n", ret);
goto out_unref;
}
fb = &rfbdev->rfb.base;
/* setup helper */
rfbdev->helper.fb = fb;
rfbdev->helper.fbdev = info;
memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo));
strcpy(info->fix.id, "radeondrmfb");
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &radeonfb_ops;
tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start;
info->fix.smem_start = rdev->mc.aper_base + tmp;
info->fix.smem_len = radeon_bo_size(rbo);
info->screen_base = rbo->kptr;
info->screen_size = radeon_bo_size(rbo);
drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height);
/* setup aperture base/size for vesafb takeover */
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.aper_size;
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
if (info->screen_base == NULL) {
ret = -ENOSPC;
goto out_unref;
}
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unref;
}
DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base);
DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
DRM_INFO("fb depth is %d\n", fb->depth);
DRM_INFO(" pitch is %d\n", fb->pitches[0]);
vga_switcheroo_client_fb_set(rdev->ddev->pdev, info);
return 0;
out_unref:
if (rbo) {
}
if (fb && ret) {
drm_gem_object_unreference(gobj);
drm_framebuffer_unregister_private(fb);
drm_framebuffer_cleanup(fb);
kfree(fb);
}
return ret;
}
static int intelfb_create(struct intel_fbdev *ifbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = ifbdev->helper.dev;
#if 0
struct drm_i915_private *dev_priv = dev->dev_private;
#endif
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_i915_gem_object *obj;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) /
8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = roundup2(size, PAGE_SIZE);
obj = i915_gem_alloc_object(dev, size);
if (!obj) {
DRM_ERROR("failed to allocate framebuffer\n");
ret = -ENOMEM;
goto out;
}
DRM_LOCK(dev);
/* Flush everything out, we'll be doing GTT only from now on */
ret = intel_pin_and_fence_fb_obj(dev, obj, false);
if (ret) {
DRM_ERROR("failed to pin fb: %d\n", ret);
goto out_unref;
}
#if 0
info = framebuffer_alloc(0, device);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
}
info->par = ifbdev;
#else
info = malloc(sizeof(struct fb_info), DRM_MEM_KMS, M_WAITOK | M_ZERO);
info->fb_size = size;
info->fb_bpp = sizes->surface_bpp;
info->fb_width = sizes->fb_width;
info->fb_height = sizes->fb_height;
info->fb_pbase = dev->agp->base + obj->gtt_offset;
info->fb_vbase = (vm_offset_t)pmap_mapdev_attr(info->fb_pbase, size,
PAT_WRITE_COMBINING);
#endif
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_unpin;
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
ifbdev->helper.fbdev = info;
#if 0
strcpy(info->fix.id, "inteldrmfb");
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unpin;
}
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out_unpin;
}
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size =
dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
info->fix.smem_len = size;
info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
if (!info->screen_base) {
ret = -ENOSPC;
goto out_unpin;
}
info->screen_size = size;
// memset(info->screen_base, 0, size);
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
#endif
DRM_DEBUG_KMS("allocated %dx%d (s %dbits) fb: 0x%08x, bo %p\n",
fb->width, fb->height, fb->depth,
obj->gtt_offset, obj);
DRM_UNLOCK(dev);
#if 1
KIB_NOTYET();
#else
vga_switcheroo_client_fb_set(dev->pdev, info);
#endif
return 0;
out_unpin:
i915_gem_object_unpin(obj);
out_unref:
drm_gem_object_unreference(&obj->base);
DRM_UNLOCK(dev);
out:
return ret;
}
/* Get framebuffer memory from Hyper-V video pci space */
static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
{
struct hvfb_par *par = info->par;
struct pci_dev *pdev = NULL;
void __iomem *fb_virt;
int gen2vm = efi_enabled(EFI_BOOT);
resource_size_t pot_start, pot_end;
int ret;
if (gen2vm) {
pot_start = 0;
pot_end = -1;
} else {
pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT,
PCI_DEVICE_ID_HYPERV_VIDEO, NULL);
if (!pdev) {
pr_err("Unable to find PCI Hyper-V video\n");
return -ENODEV;
}
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
pci_resource_len(pdev, 0) < screen_fb_size)
goto err1;
pot_end = pci_resource_end(pdev, 0);
pot_start = pot_end - screen_fb_size + 1;
}
ret = vmbus_allocate_mmio(&par->mem, hdev, pot_start, pot_end,
screen_fb_size, 0x100000, true);
if (ret != 0) {
pr_err("Unable to allocate framebuffer memory\n");
goto err1;
}
fb_virt = ioremap(par->mem->start, screen_fb_size);
if (!fb_virt)
goto err2;
info->apertures = alloc_apertures(1);
if (!info->apertures)
goto err3;
if (gen2vm) {
info->apertures->ranges[0].base = screen_info.lfb_base;
info->apertures->ranges[0].size = screen_info.lfb_size;
remove_conflicting_framebuffers(info->apertures,
KBUILD_MODNAME, false);
} else {
info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
}
info->fix.smem_start = par->mem->start;
info->fix.smem_len = screen_fb_size;
info->screen_base = fb_virt;
info->screen_size = screen_fb_size;
if (!gen2vm)
pci_dev_put(pdev);
return 0;
err3:
iounmap(fb_virt);
err2:
vmbus_free_mmio(par->mem->start, screen_fb_size);
par->mem = NULL;
err1:
if (!gen2vm)
pci_dev_put(pdev);
return -ENOMEM;
}
static int intelfb_create(struct intel_fbdev *ifbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = ifbdev->helper.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
#if 0
struct fb_info *info;
#endif
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd = {};
struct drm_i915_gem_object *obj;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) /
8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = roundup2(size, PAGE_SIZE);
obj = i915_gem_alloc_object(dev, size);
if (!obj) {
DRM_ERROR("failed to allocate framebuffer\n");
ret = -ENOMEM;
goto out;
}
DRM_LOCK();
/* Flush everything out, we'll be doing GTT only from now on */
ret = intel_pin_and_fence_fb_obj(dev, obj, false);
if (ret) {
DRM_ERROR("failed to pin fb: %d\n", ret);
goto out_unref;
}
#if 0
info = framebuffer_alloc(0, device);
if (!info) {
ret = -ENOMEM;
goto out_unpin;
}
info->par = ifbdev;
#endif
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_unpin;
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
#if 0
ifbdev->helper.fbdev = info;
strlcpy(info->fix.id, "inteldrmfb", sizeof(info->fix.id));
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
ret = fb_alloc_cmap(&info->cmap, 256, 0);
if (ret) {
ret = -ENOMEM;
goto out_unpin;
}
/* setup aperture base/size for vesafb takeover */
info->apertures = alloc_apertures(1);
if (!info->apertures) {
ret = -ENOMEM;
goto out_unpin;
}
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size =
dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
info->fix.smem_len = size;
info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
if (!info->screen_base) {
ret = -ENOSPC;
goto out_unpin;
}
info->screen_size = size;
// memset(info->screen_base, 0, size);
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
#else
{
struct rasops_info *ri = &dev_priv->ro;
bus_space_handle_t bsh;
int err;
err = agp_map_subregion(dev_priv->agph, obj->gtt_offset, size, &bsh);
if (err) {
ret = -err;
goto out_unpin;
}
ri->ri_bits = bus_space_vaddr(dev->bst, bsh);
ri->ri_depth = fb->bits_per_pixel;
ri->ri_stride = fb->pitches[0];
ri->ri_width = sizes->fb_width;
ri->ri_height = sizes->fb_height;
switch (fb->pixel_format) {
case DRM_FORMAT_XRGB8888:
ri->ri_rnum = 8;
ri->ri_rpos = 16;
ri->ri_gnum = 8;
ri->ri_gpos = 8;
ri->ri_bnum = 8;
ri->ri_bpos = 0;
break;
case DRM_FORMAT_RGB565:
ri->ri_rnum = 5;
ri->ri_rpos = 11;
ri->ri_gnum = 6;
ri->ri_gpos = 5;
ri->ri_bnum = 5;
ri->ri_bpos = 0;
break;
}
}
#endif
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
fb->width, fb->height,
obj->gtt_offset, obj);
DRM_UNLOCK();
#if 1
DRM_DEBUG_KMS("skipping call to vga_switcheroo_client_fb_set\n");
#else
vga_switcheroo_client_fb_set(dev->pdev, info);
#endif
return 0;
out_unpin:
i915_gem_object_unpin(obj);
out_unref:
drm_gem_object_unreference(&obj->base);
DRM_UNLOCK();
out:
return ret;
}
