drm: Remove the obsolete driver-r128

Commit 399516ab ("MAINTAINERS: Add a bunch of legacy (UMS) DRM drivers")
marked r128 driver obsolete 7 years ago.
And the mesa UMD of this drm driver already in deprecated list
in the link: https://docs.mesa3d.org/systems.html
ATI Rage 128->drivers/gpu/drm/r128

It's time to remove this driver.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221203102502.3185-4-cai.huoqing@linux.dev

drivers/gpu/drm/Kconfig

@@ -405,15 +405,6 @@ config DRM_TDFX
 	  Choose this option if you have a 3dfx Banshee or Voodoo3 (or later),
 	  graphics card.  If M is selected, the module will be called tdfx.
 
-config DRM_R128
-	tristate "ATI Rage 128"
-	depends on DRM && PCI
-	select FW_LOADER
-	help
-	  Choose this option if you have an ATI Rage 128 graphics card.  If M
-	  is selected, the module will be called r128.  AGP support for
-	  this card is strongly suggested (unless you have a PCI version).
-
 config DRM_SIS
 	tristate "SiS video cards"
 	depends on DRM && AGP

drivers/gpu/drm/Makefile

@@ -134,7 +134,6 @@ obj-y			+= display/
 obj-$(CONFIG_DRM_TTM)	+= ttm/
 obj-$(CONFIG_DRM_SCHED)	+= scheduler/
 obj-$(CONFIG_DRM_TDFX)	+= tdfx/
-obj-$(CONFIG_DRM_R128)	+= r128/
 obj-$(CONFIG_DRM_RADEON)+= radeon/
 obj-$(CONFIG_DRM_AMDGPU)+= amd/amdgpu/
 obj-$(CONFIG_DRM_I915)	+= i915/

drivers/gpu/drm/r128/Makefile

-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for the drm device driver.  This driver provides support for the
-# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
-
-r128-y   := r128_drv.o r128_cce.o r128_state.o r128_irq.o ati_pcigart.o
-
-r128-$(CONFIG_COMPAT)   += r128_ioc32.o
-
-obj-$(CONFIG_DRM_R128)	+= r128.o

drivers/gpu/drm/r128/ati_pcigart.c

-/*
- * \file ati_pcigart.c
- * ATI PCI GART support
- *
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com
- *
- * 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
- * PRECISION INSIGHT 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.
- */
-
-#include <linux/export.h>
-#include <linux/pci.h>
-
-#include <drm/drm_device.h>
-#include <drm/drm_legacy.h>
-#include <drm/drm_print.h>
-
-#include "ati_pcigart.h"
-
-# define ATI_PCIGART_PAGE_SIZE		4096	/**< PCI GART page size */
-
-static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
-				       struct drm_ati_pcigart_info *gart_info)
-{
-	drm_dma_handle_t *dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL);
-
-	if (!dmah)
-		return -ENOMEM;
-
-	dmah->size = gart_info->table_size;
-	dmah->vaddr = dma_alloc_coherent(dev->dev,
-					 dmah->size,
-					 &dmah->busaddr,
-					 GFP_KERNEL);
-
-	if (!dmah->vaddr) {
-		kfree(dmah);
-		return -ENOMEM;
-	}
-
-	gart_info->table_handle = dmah;
-	return 0;
-}
-
-static void drm_ati_free_pcigart_table(struct drm_device *dev,
-				       struct drm_ati_pcigart_info *gart_info)
-{
-	drm_dma_handle_t *dmah = gart_info->table_handle;
-
-	dma_free_coherent(dev->dev, dmah->size, dmah->vaddr, dmah->busaddr);
-	kfree(dmah);
-
-	gart_info->table_handle = NULL;
-}
-
-int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
-{
-	struct drm_sg_mem *entry = dev->sg;
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
-	unsigned long pages;
-	int i;
-	int max_pages;
-
-	/* we need to support large memory configurations */
-	if (!entry) {
-		DRM_ERROR("no scatter/gather memory!\n");
-		return 0;
-	}
-
-	if (gart_info->bus_addr) {
-
-		max_pages = (gart_info->table_size / sizeof(u32));
-		pages = (entry->pages <= max_pages)
-		  ? entry->pages : max_pages;
-
-		for (i = 0; i < pages; i++) {
-			if (!entry->busaddr[i])
-				break;
-			dma_unmap_page(&pdev->dev, entry->busaddr[i],
-				       PAGE_SIZE, DMA_BIDIRECTIONAL);
-		}
-
-		if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
-			gart_info->bus_addr = 0;
-	}
-
-	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
-	    gart_info->table_handle) {
-		drm_ati_free_pcigart_table(dev, gart_info);
-	}
-
-	return 1;
-}
-
-int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
-{
-	struct drm_local_map *map = &gart_info->mapping;
-	struct drm_sg_mem *entry = dev->sg;
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
-	void *address = NULL;
-	unsigned long pages;
-	u32 *pci_gart = NULL, page_base, gart_idx;
-	dma_addr_t bus_address = 0;
-	int i, j, ret = -ENOMEM;
-	int max_ati_pages, max_real_pages;
-
-	if (!entry) {
-		DRM_ERROR("no scatter/gather memory!\n");
-		goto done;
-	}
-
-	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
-		DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
-
-		if (dma_set_mask(&pdev->dev, gart_info->table_mask)) {
-			DRM_ERROR("fail to set dma mask to 0x%Lx\n",
-				  (unsigned long long)gart_info->table_mask);
-			ret = -EFAULT;
-			goto done;
-		}
-
-		ret = drm_ati_alloc_pcigart_table(dev, gart_info);
-		if (ret) {
-			DRM_ERROR("cannot allocate PCI GART page!\n");
-			goto done;
-		}
-
-		pci_gart = gart_info->table_handle->vaddr;
-		address = gart_info->table_handle->vaddr;
-		bus_address = gart_info->table_handle->busaddr;
-	} else {
-		address = gart_info->addr;
-		bus_address = gart_info->bus_addr;
-		DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n",
-			  (unsigned long long)bus_address,
-			  (unsigned long)address);
-	}
-
-
-	max_ati_pages = (gart_info->table_size / sizeof(u32));
-	max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE);
-	pages = (entry->pages <= max_real_pages)
-	    ? entry->pages : max_real_pages;
-
-	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
-		memset(pci_gart, 0, max_ati_pages * sizeof(u32));
-	} else {
-		memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32));
-	}
-
-	gart_idx = 0;
-	for (i = 0; i < pages; i++) {
-		/* we need to support large memory configurations */
-		entry->busaddr[i] = dma_map_page(&pdev->dev, entry->pagelist[i],
-						 0, PAGE_SIZE, DMA_BIDIRECTIONAL);
-		if (dma_mapping_error(&pdev->dev, entry->busaddr[i])) {
-			DRM_ERROR("unable to map PCIGART pages!\n");
-			drm_ati_pcigart_cleanup(dev, gart_info);
-			address = NULL;
-			bus_address = 0;
-			ret = -ENOMEM;
-			goto done;
-		}
-		page_base = (u32) entry->busaddr[i];
-
-		for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
-			u32 offset;
-			u32 val;
-
-			switch(gart_info->gart_reg_if) {
-			case DRM_ATI_GART_IGP:
-				val = page_base | 0xc;
-				break;
-			case DRM_ATI_GART_PCIE:
-				val = (page_base >> 8) | 0xc;
-				break;
-			default:
-			case DRM_ATI_GART_PCI:
-				val = page_base;
-				break;
-			}
-			if (gart_info->gart_table_location ==
-			    DRM_ATI_GART_MAIN) {
-				pci_gart[gart_idx] = cpu_to_le32(val);
-			} else {
-				offset = gart_idx * sizeof(u32);
-				writel(val, (void __iomem *)map->handle + offset);
-			}
-			gart_idx++;
-			page_base += ATI_PCIGART_PAGE_SIZE;
-		}
-	}
-	ret = 0;
-
-#ifdef CONFIG_X86
-	wbinvd();
-#else
-	mb();
-#endif
-
-      done:
-	gart_info->addr = address;
-	gart_info->bus_addr = bus_address;
-	return ret;
-}

drivers/gpu/drm/r128/ati_pcigart.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef DRM_ATI_PCIGART_H
-#define DRM_ATI_PCIGART_H
-
-#include <drm/drm_legacy.h>
-
-/* location of GART table */
-#define DRM_ATI_GART_MAIN 1
-#define DRM_ATI_GART_FB   2
-
-#define DRM_ATI_GART_PCI 1
-#define DRM_ATI_GART_PCIE 2
-#define DRM_ATI_GART_IGP 3
-
-struct drm_ati_pcigart_info {
-	int gart_table_location;
-	int gart_reg_if;
-	void *addr;
-	dma_addr_t bus_addr;
-	dma_addr_t table_mask;
-	struct drm_dma_handle *table_handle;
-	struct drm_local_map mapping;
-	int table_size;
-};
-
-extern int drm_ati_pcigart_init(struct drm_device *dev,
-				struct drm_ati_pcigart_info * gart_info);
-extern int drm_ati_pcigart_cleanup(struct drm_device *dev,
-				   struct drm_ati_pcigart_info * gart_info);
-
-#endif

drivers/gpu/drm/r128/r128_drv.c

-/* r128_drv.c -- ATI Rage 128 driver -*- linux-c -*-
- * Created: Mon Dec 13 09:47:27 1999 by faith@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 <linux/module.h>
-#include <linux/pci.h>
-
-#include <drm/drm_drv.h>
-#include <drm/drm_file.h>
-#include <drm/drm_pciids.h>
-#include <drm/drm_vblank.h>
-#include <drm/r128_drm.h>
-
-#include "r128_drv.h"
-
-static struct pci_device_id pciidlist[] = {
-	r128_PCI_IDS
-};
-
-static const struct file_operations r128_driver_fops = {
-	.owner = THIS_MODULE,
-	.open = drm_open,
-	.release = drm_release,
-	.unlocked_ioctl = drm_ioctl,
-	.mmap = drm_legacy_mmap,
-	.poll = drm_poll,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = r128_compat_ioctl,
-#endif
-	.llseek = noop_llseek,
-};
-
-static struct drm_driver driver = {
-	.driver_features =
-	    DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG | DRIVER_LEGACY |
-	    DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ,
-	.dev_priv_size = sizeof(drm_r128_buf_priv_t),
-	.load = r128_driver_load,
-	.preclose = r128_driver_preclose,
-	.lastclose = r128_driver_lastclose,
-	.get_vblank_counter = r128_get_vblank_counter,
-	.enable_vblank = r128_enable_vblank,
-	.disable_vblank = r128_disable_vblank,
-	.irq_preinstall = r128_driver_irq_preinstall,
-	.irq_postinstall = r128_driver_irq_postinstall,
-	.irq_uninstall = r128_driver_irq_uninstall,
-	.irq_handler = r128_driver_irq_handler,
-	.ioctls = r128_ioctls,
-	.dma_ioctl = r128_cce_buffers,
-	.fops = &r128_driver_fops,
-	.name = DRIVER_NAME,
-	.desc = DRIVER_DESC,
-	.date = DRIVER_DATE,
-	.major = DRIVER_MAJOR,
-	.minor = DRIVER_MINOR,
-	.patchlevel = DRIVER_PATCHLEVEL,
-};
-
-int r128_driver_load(struct drm_device *dev, unsigned long flags)
-{
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
-
-	pci_set_master(pdev);
-	return drm_vblank_init(dev, 1);
-}
-
-static struct pci_driver r128_pci_driver = {
-	.name = DRIVER_NAME,
-	.id_table = pciidlist,
-};
-
-static int __init r128_init(void)
-{
-	driver.num_ioctls = r128_max_ioctl;
-
-	return drm_legacy_pci_init(&driver, &r128_pci_driver);
-}
-
-static void __exit r128_exit(void)
-{
-	drm_legacy_pci_exit(&driver, &r128_pci_driver);
-}
-
-module_init(r128_init);
-module_exit(r128_exit);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/r128/r128_ioc32.c

-/*
- * \file r128_ioc32.c
- *
- * 32-bit ioctl compatibility routines for the R128 DRM.
- *
- * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich
- *
- * Copyright (C) Paul Mackerras 2005
- * Copyright (C) Egbert Eich 2003,2004
- * Copyright (C) Dave Airlie 2005
- * 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
- * THE AUTHOR 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.
- */
-
-#include <linux/compat.h>
-
-#include <drm/r128_drm.h>
-
-#include "r128_drv.h"
-
-typedef struct drm_r128_init32 {
-	int func;
-	unsigned int sarea_priv_offset;
-	int is_pci;
-	int cce_mode;
-	int cce_secure;
-	int ring_size;
-	int usec_timeout;
-
-	unsigned int fb_bpp;
-	unsigned int front_offset, front_pitch;
-	unsigned int back_offset, back_pitch;
-	unsigned int depth_bpp;
-	unsigned int depth_offset, depth_pitch;
-	unsigned int span_offset;
-
-	unsigned int fb_offset;
-	unsigned int mmio_offset;
-	unsigned int ring_offset;
-	unsigned int ring_rptr_offset;
-	unsigned int buffers_offset;
-	unsigned int agp_textures_offset;
-} drm_r128_init32_t;
-
-static int compat_r128_init(struct file *file, unsigned int cmd,
-			    unsigned long arg)
-{
-	drm_r128_init32_t init32;
-	drm_r128_init_t init;
-
-	if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
-		return -EFAULT;
-
-	init.func = init32.func;
-	init.sarea_priv_offset = init32.sarea_priv_offset;
-	init.is_pci = init32.is_pci;
-	init.cce_mode = init32.cce_mode;
-	init.cce_secure = init32.cce_secure;
-	init.ring_size = init32.ring_size;
-	init.usec_timeout = init32.usec_timeout;
-	init.fb_bpp = init32.fb_bpp;
-	init.front_offset = init32.front_offset;
-	init.front_pitch = init32.front_pitch;
-	init.back_offset = init32.back_offset;
-	init.back_pitch = init32.back_pitch;
-	init.depth_bpp = init32.depth_bpp;
-	init.depth_offset = init32.depth_offset;
-	init.depth_pitch = init32.depth_pitch;
-	init.span_offset = init32.span_offset;
-	init.fb_offset = init32.fb_offset;
-	init.mmio_offset = init32.mmio_offset;
-	init.ring_offset = init32.ring_offset;
-	init.ring_rptr_offset = init32.ring_rptr_offset;
-	init.buffers_offset = init32.buffers_offset;
-	init.agp_textures_offset = init32.agp_textures_offset;
-
-	return drm_ioctl_kernel(file, r128_cce_init, &init,
-			DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
-}
-
-typedef struct drm_r128_depth32 {
-	int func;
-	int n;
-	u32 x;
-	u32 y;
-	u32 buffer;
-	u32 mask;
-} drm_r128_depth32_t;
-
-static int compat_r128_depth(struct file *file, unsigned int cmd,
-			     unsigned long arg)
-{
-	drm_r128_depth32_t depth32;
-	drm_r128_depth_t depth;
-
-	if (copy_from_user(&depth32, (void __user *)arg, sizeof(depth32)))
-		return -EFAULT;
-
-	depth.func = depth32.func;
-	depth.n = depth32.n;
-	depth.x = compat_ptr(depth32.x);
-	depth.y = compat_ptr(depth32.y);
-	depth.buffer = compat_ptr(depth32.buffer);
-	depth.mask = compat_ptr(depth32.mask);
-
-	return drm_ioctl_kernel(file, r128_cce_depth, &depth, DRM_AUTH);
-}
-
-typedef struct drm_r128_stipple32 {
-	u32 mask;
-} drm_r128_stipple32_t;
-
-static int compat_r128_stipple(struct file *file, unsigned int cmd,
-			       unsigned long arg)
-{
-	drm_r128_stipple32_t stipple32;
-	drm_r128_stipple_t stipple;
-
-	if (copy_from_user(&stipple32, (void __user *)arg, sizeof(stipple32)))
-		return -EFAULT;
-
-	stipple.mask = compat_ptr(stipple32.mask);
-
-	return drm_ioctl_kernel(file, r128_cce_stipple, &stipple, DRM_AUTH);
-}
-
-typedef struct drm_r128_getparam32 {
-	int param;
-	u32 value;
-} drm_r128_getparam32_t;
-
-static int compat_r128_getparam(struct file *file, unsigned int cmd,
-				unsigned long arg)
-{
-	drm_r128_getparam32_t getparam32;
-	drm_r128_getparam_t getparam;
-
-	if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32)))
-		return -EFAULT;
-
-	getparam.param = getparam32.param;
-	getparam.value = compat_ptr(getparam32.value);
-
-	return drm_ioctl_kernel(file, r128_getparam, &getparam, DRM_AUTH);
-}
-
-drm_ioctl_compat_t *r128_compat_ioctls[] = {
-	[DRM_R128_INIT] = compat_r128_init,
-	[DRM_R128_DEPTH] = compat_r128_depth,
-	[DRM_R128_STIPPLE] = compat_r128_stipple,
-	[DRM_R128_GETPARAM] = compat_r128_getparam,
-};
-
-/**
- * r128_compat_ioctl - Called whenever a 32-bit process running under
- *                     a 64-bit kernel performs an ioctl on /dev/dri/card<n>.
- *
- * @filp: file pointer.
- * @cmd: command.
- * @arg: user argument.
- * return: zero on success or negative number on failure.
- */
-long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	unsigned int nr = DRM_IOCTL_NR(cmd);
-	drm_ioctl_compat_t *fn = NULL;
-	int ret;
-
-	if (nr < DRM_COMMAND_BASE)
-		return drm_compat_ioctl(filp, cmd, arg);
-
-	if (nr < DRM_COMMAND_BASE + ARRAY_SIZE(r128_compat_ioctls))
-		fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
-
-	if (fn != NULL)
-		ret = (*fn) (filp, cmd, arg);
-	else
-		ret = drm_ioctl(filp, cmd, arg);
-
-	return ret;
-}

drivers/gpu/drm/r128/r128_irq.c

-/* r128_irq.c -- IRQ handling for radeon -*- linux-c -*- */
-/*
- * Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
- *
- * The Weather Channel (TM) funded Tungsten Graphics to develop the
- * initial release of the Radeon 8500 driver under the XFree86 license.
- * This notice must be preserved.
- *
- * 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
- * PRECISION INSIGHT 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:
- *    Keith Whitwell <keith@tungstengraphics.com>
- *    Eric Anholt <anholt@FreeBSD.org>
- */
-
-#include <drm/drm_device.h>
-#include <drm/drm_print.h>
-#include <drm/drm_vblank.h>
-#include <drm/r128_drm.h>
-
-#include "r128_drv.h"
-
-u32 r128_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
-{
-	const drm_r128_private_t *dev_priv = dev->dev_private;
-
-	if (pipe != 0)
-		return 0;
-
-	return atomic_read(&dev_priv->vbl_received);
-}
-
-irqreturn_t r128_driver_irq_handler(int irq, void *arg)
-{
-	struct drm_device *dev = (struct drm_device *) arg;
-	drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private;
-	int status;
-
-	status = R128_READ(R128_GEN_INT_STATUS);
-
-	/* VBLANK interrupt */
-	if (status & R128_CRTC_VBLANK_INT) {
-		R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
-		atomic_inc(&dev_priv->vbl_received);
-		drm_handle_vblank(dev, 0);
-		return IRQ_HANDLED;
-	}
-	return IRQ_NONE;
-}
-
-int r128_enable_vblank(struct drm_device *dev, unsigned int pipe)
-{
-	drm_r128_private_t *dev_priv = dev->dev_private;
-
-	if (pipe != 0) {
-		DRM_ERROR("%s:  bad crtc %u\n", __func__, pipe);
-		return -EINVAL;
-	}
-
-	R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN);
-	return 0;
-}
-
-void r128_disable_vblank(struct drm_device *dev, unsigned int pipe)
-{
-	if (pipe != 0)
-		DRM_ERROR("%s:  bad crtc %u\n", __func__, pipe);
-
-	/*
-	 * FIXME: implement proper interrupt disable by using the vblank
-	 * counter register (if available)
-	 *
-	 * R128_WRITE(R128_GEN_INT_CNTL,
-	 *            R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN);
-	 */
-}
-
-void r128_driver_irq_preinstall(struct drm_device *dev)
-{
-	drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private;
-
-	/* Disable *all* interrupts */
-	R128_WRITE(R128_GEN_INT_CNTL, 0);
-	/* Clear vblank bit if it's already high */
-	R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
-}
-
-int r128_driver_irq_postinstall(struct drm_device *dev)
-{
-	return 0;
-}
-
-void r128_driver_irq_uninstall(struct drm_device *dev)
-{
-	drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private;
-	if (!dev_priv)
-		return;
-
-	/* Disable *all* interrupts */
-	R128_WRITE(R128_GEN_INT_CNTL, 0);
-}