int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
{
struct mga_device *mdev;
int r;
mdev = devm_kzalloc(dev->dev, sizeof(struct mga_device), GFP_KERNEL);
if (mdev == NULL)
return -ENOMEM;
dev->dev_private = (void *)mdev;
mdev->dev = dev;
r = mgag200_device_init(dev, flags);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
return r;
}
r = mgag200_mm_init(mdev);
if (r)
goto err_mm;
drm_mode_config_init(dev);
dev->mode_config.funcs = (void *)&mga_mode_funcs;
if (IS_G200_SE(mdev) && mdev->mc.vram_size < (2048*1024))
dev->mode_config.preferred_depth = 16;
else
dev->mode_config.preferred_depth = 24;
dev->mode_config.prefer_shadow = 1;
r = mgag200_modeset_init(mdev);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
goto err_modeset;
}
/* Make small buffers to store a hardware cursor (double buffered icon updates) */
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_1);
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_2);
if (!mdev->cursor.pixels_2 || !mdev->cursor.pixels_1) {
mdev->cursor.pixels_1 = NULL;
mdev->cursor.pixels_2 = NULL;
dev_warn(&dev->pdev->dev,
"Could not allocate space for cursors. Not doing hardware cursors.\n");
} else {
mdev->cursor.pixels_current = mdev->cursor.pixels_1;
mdev->cursor.pixels_prev = mdev->cursor.pixels_2;
}
return 0;
err_modeset:
drm_mode_config_cleanup(dev);
mgag200_mm_fini(mdev);
err_mm:
dev->dev_private = NULL;
return r;
}
static int mgag200_device_init(struct drm_device *dev,
uint32_t flags)
{
struct mga_device *mdev = dev->dev_private;
int ret, option;
mdev->type = flags;
/* Hardcode the number of CRTCs to 1 */
mdev->num_crtc = 1;
pci_read_config_dword(dev->pdev, PCI_MGA_OPTION, &option);
mdev->has_sdram = !(option & (1 << 14));
/* BAR 0 is the framebuffer, BAR 1 contains registers */
mdev->rmmio_base = pci_resource_start(mdev->dev->pdev, 1);
mdev->rmmio_size = pci_resource_len(mdev->dev->pdev, 1);
if (!request_mem_region(mdev->rmmio_base, mdev->rmmio_size,
"mgadrmfb_mmio")) {
DRM_ERROR("can't reserve mmio registers\n");
return -ENOMEM;
}
mdev->rmmio = pci_iomap(dev->pdev, 1, 0);
if (mdev->rmmio == NULL)
return -ENOMEM;
/* stash G200 SE model number for later use */
if (IS_G200_SE(mdev))
mdev->reg_1e24 = RREG32(0x1e24);
ret = mga_vram_init(mdev);
if (ret) {
release_mem_region(mdev->rmmio_base, mdev->rmmio_size);
return ret;
}
mdev->bpp_shifts[0] = 0;
mdev->bpp_shifts[1] = 1;
mdev->bpp_shifts[2] = 0;
mdev->bpp_shifts[3] = 2;
return 0;
}
int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
{
struct mga_device *mdev;
int r;
mdev = devm_kzalloc(dev->dev, sizeof(struct mga_device), GFP_KERNEL);
if (mdev == NULL)
return -ENOMEM;
dev->dev_private = (void *)mdev;
mdev->dev = dev;
r = mgag200_device_init(dev, flags);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
return r;
}
r = mgag200_mm_init(mdev);
if (r)
goto out;
drm_mode_config_init(dev);
dev->mode_config.funcs = (void *)&mga_mode_funcs;
if (mgag200_preferred_depth == 0) {
if (IS_G200_SE(mdev) && mdev->mc.vram_size <= (2048*1024)) {
mdev->preferred_bpp =
dev->mode_config.preferred_depth = 16;
} else {
/* prefer 16bpp on low end gpus with limited VRAM */
mdev->preferred_bpp = 32;
dev->mode_config.preferred_depth = 24;
}
} else {
dev->mode_config.preferred_depth = mgag200_preferred_depth;
switch (mgag200_preferred_depth) {
case 16:
mdev->preferred_bpp = 16;
break;
case 24:
mdev->preferred_bpp = 32;
break;
default:
goto out;
}
}
dev->mode_config.prefer_shadow = 1;
r = mgag200_modeset_init(mdev);
if (r) {
dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
goto out;
}
/* Make small buffers to store a hardware cursor (double buffered icon updates) */
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_1);
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_2);
if (!mdev->cursor.pixels_2 || !mdev->cursor.pixels_1)
goto cursor_nospace;
mdev->cursor.pixels_current = mdev->cursor.pixels_1;
mdev->cursor.pixels_prev = mdev->cursor.pixels_2;
goto cursor_done;
cursor_nospace:
mdev->cursor.pixels_1 = NULL;
mdev->cursor.pixels_2 = NULL;
dev_warn(&dev->pdev->dev, "Could not allocate space for cursors. Not doing hardware cursors.\n");
cursor_done:
out:
if (r)
mgag200_driver_unload(dev);
return r;
}
