1 files changed, 141 insertions, 0 deletions

diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
new file mode 100644
index 000000000000..5572939fc7d1
--- /dev/null
+++ b/drivers/gpu/drm/mga/mga_drv.c
@@ -0,0 +1,141 @@
+/* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
+ * Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Rickard E. (Rik) Faith <faith@valinux.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "mga_drm.h"
+#include "mga_drv.h"
+
+#include "drm_pciids.h"
+
+static int mga_driver_device_is_agp(struct drm_device * dev);
+
+static struct pci_device_id pciidlist[] = {
+        mga_PCI_IDS
+};
+
+static struct drm_driver driver = {
+        .driver_features =
+            DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
+            DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
+            DRIVER_IRQ_VBL,
+        .dev_priv_size = sizeof(drm_mga_buf_priv_t),
+        .load = mga_driver_load,
+        .unload = mga_driver_unload,
+        .lastclose = mga_driver_lastclose,
+        .dma_quiescent = mga_driver_dma_quiescent,
+        .device_is_agp = mga_driver_device_is_agp,
+        .vblank_wait = mga_driver_vblank_wait,
+        .irq_preinstall = mga_driver_irq_preinstall,
+        .irq_postinstall = mga_driver_irq_postinstall,
+        .irq_uninstall = mga_driver_irq_uninstall,
+        .irq_handler = mga_driver_irq_handler,
+        .reclaim_buffers = drm_core_reclaim_buffers,
+        .get_map_ofs = drm_core_get_map_ofs,
+        .get_reg_ofs = drm_core_get_reg_ofs,
+        .ioctls = mga_ioctls,
+        .dma_ioctl = mga_dma_buffers,
+        .fops = {
+                 .owner = THIS_MODULE,
+                 .open = drm_open,
+                 .release = drm_release,
+                 .ioctl = drm_ioctl,
+                 .mmap = drm_mmap,
+                 .poll = drm_poll,
+                 .fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+                 .compat_ioctl = mga_compat_ioctl,
+#endif
+                 },
+        .pci_driver = {
+                 .name = DRIVER_NAME,
+                 .id_table = pciidlist,
+        },
+
+        .name = DRIVER_NAME,
+        .desc = DRIVER_DESC,
+        .date = DRIVER_DATE,
+        .major = DRIVER_MAJOR,
+        .minor = DRIVER_MINOR,
+        .patchlevel = DRIVER_PATCHLEVEL,
+};
+
+static int __init mga_init(void)
+{
+        driver.num_ioctls = mga_max_ioctl;
+        return drm_init(&driver);
+}
+
+static void __exit mga_exit(void)
+{
+        drm_exit(&driver);
+}
+
+module_init(mga_init);
+module_exit(mga_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
+
+/**
+ * Determine if the device really is AGP or not.
+ *
+ * In addition to the usual tests performed by \c drm_device_is_agp, this
+ * function detects PCI G450 cards that appear to the system exactly like
+ * AGP G450 cards.
+ *
+ * \param dev   The device to be tested.
+ *
+ * \returns
+ * If the device is a PCI G450, zero is returned.  Otherwise 2 is returned.
+ */
+static int mga_driver_device_is_agp(struct drm_device * dev)
+{
+        const struct pci_dev *const pdev = dev->pdev;
+
+        /* There are PCI versions of the G450.  These cards have the
+         * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
+         * bridge chip.  We detect these cards, which are not currently
+         * supported by this driver, by looking at the device ID of the
+         * bus the "card" is on.  If vendor is 0x3388 (Hint Corp) and the
+         * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
+         * device.
+         */
+
+        if ((pdev->device == 0x0525) && pdev->bus->self
+            && (pdev->bus->self->vendor == 0x3388)
+            && (pdev->bus->self->device == 0x0021)) {
+                return 0;
+        }
+
+        return 2;
+}