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path: root/drivers/gpu/drm/mgag200/mgag200_main.c
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Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_main.c')
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_main.c160
1 files changed, 0 insertions, 160 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
deleted file mode 100644
index 86df799fd38c..000000000000
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ /dev/null
@@ -1,160 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2010 Matt Turner.
- * Copyright 2012 Red Hat
- *
- * Authors: Matthew Garrett
- * Matt Turner
- * Dave Airlie
- */
-
-#include <linux/pci.h>
-
-#include "mgag200_drv.h"
-
-static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
-{
- int offset;
- int orig;
- int test1, test2;
- int orig1, orig2;
- unsigned int vram_size;
-
- /* Probe */
- orig = ioread16(mem);
- iowrite16(0, mem);
-
- vram_size = mdev->mc.vram_window;
-
- if ((mdev->type == G200_EW3) && (vram_size >= 0x1000000)) {
- vram_size = vram_size - 0x400000;
- }
-
- for (offset = 0x100000; offset < vram_size; offset += 0x4000) {
- orig1 = ioread8(mem + offset);
- orig2 = ioread8(mem + offset + 0x100);
-
- iowrite16(0xaa55, mem + offset);
- iowrite16(0xaa55, mem + offset + 0x100);
-
- test1 = ioread16(mem + offset);
- test2 = ioread16(mem);
-
- iowrite16(orig1, mem + offset);
- iowrite16(orig2, mem + offset + 0x100);
-
- if (test1 != 0xaa55) {
- break;
- }
-
- if (test2) {
- break;
- }
- }
-
- iowrite16(orig, mem);
- return offset - 65536;
-}
-
-/* Map the framebuffer from the card and configure the core */
-static int mga_vram_init(struct mga_device *mdev)
-{
- struct drm_device *dev = mdev->dev;
- void __iomem *mem;
-
- /* BAR 0 is VRAM */
- mdev->mc.vram_base = pci_resource_start(dev->pdev, 0);
- mdev->mc.vram_window = pci_resource_len(dev->pdev, 0);
-
- if (!devm_request_mem_region(dev->dev, mdev->mc.vram_base,
- mdev->mc.vram_window, "mgadrmfb_vram")) {
- DRM_ERROR("can't reserve VRAM\n");
- return -ENXIO;
- }
-
- mem = pci_iomap(dev->pdev, 0, 0);
- if (!mem)
- return -ENOMEM;
-
- mdev->mc.vram_size = mga_probe_vram(mdev, mem);
-
- pci_iounmap(dev->pdev, mem);
-
- return 0;
-}
-
-int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
-{
- struct mga_device *mdev;
- int ret, option;
-
- mdev = devm_kzalloc(dev->dev, sizeof(struct mga_device), GFP_KERNEL);
- if (mdev == NULL)
- return -ENOMEM;
- dev->dev_private = (void *)mdev;
- mdev->dev = dev;
-
- mdev->flags = mgag200_flags_from_driver_data(flags);
- mdev->type = mgag200_type_from_driver_data(flags);
-
- 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(dev->pdev, 1);
- mdev->rmmio_size = pci_resource_len(dev->pdev, 1);
-
- if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
- mdev->rmmio_size, "mgadrmfb_mmio")) {
- drm_err(dev, "can't reserve mmio registers\n");
- return -ENOMEM;
- }
-
- mdev->rmmio = pcim_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->unique_rev_id = RREG32(0x1e24);
- drm_dbg(dev, "G200 SE unique revision id is 0x%x\n",
- mdev->unique_rev_id);
- }
-
- ret = mga_vram_init(mdev);
- if (ret)
- return ret;
-
- ret = mgag200_mm_init(mdev);
- if (ret)
- goto err_mm;
-
- ret = mgag200_modeset_init(mdev);
- if (ret) {
- drm_err(dev, "Fatal error during modeset init: %d\n", ret);
- goto err_mgag200_mm_fini;
- }
-
- ret = mgag200_cursor_init(mdev);
- if (ret)
- drm_err(dev, "Could not initialize cursors. Not doing hardware cursors.\n");
-
- return 0;
-
-err_mgag200_mm_fini:
- mgag200_mm_fini(mdev);
-err_mm:
- dev->dev_private = NULL;
- return ret;
-}
-
-void mgag200_driver_unload(struct drm_device *dev)
-{
- struct mga_device *mdev = to_mga_device(dev);
-
- if (mdev == NULL)
- return;
- mgag200_cursor_fini(mdev);
- mgag200_mm_fini(mdev);
- dev->dev_private = NULL;
-}