drm: Remove the obsolete driver-r128

Commit 399516ab0fee ("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

11 files changed, 0 insertions, 3841 deletions

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 3aba47a790c3..d54bb7795330 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/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
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 306f1f8fd830..76f8d567502a 100644
--- a/drivers/gpu/drm/Makefile
+++ b/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-$(CONFIG_DRM_I915)	+= i915/
diff --git a/drivers/gpu/drm/r128/Makefile b/drivers/gpu/drm/r128/Makefile
deleted file mode 100644
index c07a069533ef..000000000000
--- a/drivers/gpu/drm/r128/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for the drm device driver.  This driver provides support for the
-# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
-
-r128-y   := r128_drv.o r128_cce.o r128_state.o r128_irq.o ati_pcigart.o
-
-r128-$(CONFIG_COMPAT)   += r128_ioc32.o
-
-obj-$(CONFIG_DRM_R128)	+= r128.o
diff --git a/drivers/gpu/drm/r128/ati_pcigart.c b/drivers/gpu/drm/r128/ati_pcigart.c
deleted file mode 100644
index dde0501aea68..000000000000
--- a/drivers/gpu/drm/r128/ati_pcigart.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- * \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;
-}
diff --git a/drivers/gpu/drm/r128/ati_pcigart.h b/drivers/gpu/drm/r128/ati_pcigart.h
deleted file mode 100644
index a728a1364e66..000000000000
--- a/drivers/gpu/drm/r128/ati_pcigart.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* 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
diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c
deleted file mode 100644
index c04d84a69dd2..000000000000
--- a/drivers/gpu/drm/r128/r128_cce.c
+++ /dev/null
@@ -1,944 +0,0 @@
-/* r128_cce.c -- ATI Rage 128 driver -*- linux-c -*-
- * Created: Wed Apr  5 19:24:19 2000 by kevin@precisioninsight.com
- */
-/*
- * Copyright 2000 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
- * 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:
- *    Gareth Hughes <gareth@valinux.com>
- */
-
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/firmware.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-
-#include <drm/drm_device.h>
-#include <drm/drm_file.h>
-#include <drm/drm_legacy.h>
-#include <drm/drm_print.h>
-#include <drm/r128_drm.h>
-
-#include "r128_drv.h"
-
-#define R128_FIFO_DEBUG		0
-
-#define FIRMWARE_NAME		"r128/r128_cce.bin"
-
-MODULE_FIRMWARE(FIRMWARE_NAME);
-
-static int R128_READ_PLL(struct drm_device *dev, int addr)
-{
-	drm_r128_private_t *dev_priv = dev->dev_private;
-
-	R128_WRITE8(R128_CLOCK_CNTL_INDEX, addr & 0x1f);
-	return R128_READ(R128_CLOCK_CNTL_DATA);
-}
-
-#if R128_FIFO_DEBUG
-static void r128_status(drm_r128_private_t *dev_priv)
-{
-	printk("GUI_STAT           = 0x%08x\n",
-	       (unsigned int)R128_READ(R128_GUI_STAT));
-	printk("PM4_STAT           = 0x%08x\n",
-	       (unsigned int)R128_READ(R128_PM4_STAT));
-	printk("PM4_BUFFER_DL_WPTR = 0x%08x\n",
-	       (unsigned int)R128_READ(R128_PM4_BUFFER_DL_WPTR));
-	printk("PM4_BUFFER_DL_RPTR = 0x%08x\n",
-	       (unsigned int)R128_READ(R128_PM4_BUFFER_DL_RPTR));
-	printk("PM4_MICRO_CNTL     = 0x%08x\n",
-	       (unsigned int)R128_READ(R128_PM4_MICRO_CNTL));
-	printk("PM4_BUFFER_CNTL    = 0x%08x\n",
-	       (unsigned int)R128_READ(R128_PM4_BUFFER_CNTL));
-}
-#endif
-
-/* ================================================================
- * Engine, FIFO control
- */
-
-static int r128_do_pixcache_flush(drm_r128_private_t *dev_priv)
-{
-	u32 tmp;
-	int i;
-
-	tmp = R128_READ(R128_PC_NGUI_CTLSTAT) | R128_PC_FLUSH_ALL;
-	R128_WRITE(R128_PC_NGUI_CTLSTAT, tmp);
-
-	for (i = 0; i < dev_priv->usec_timeout; i++) {
-		if (!(R128_READ(R128_PC_NGUI_CTLSTAT) & R128_PC_BUSY))
-			return 0;
-		udelay(1);
-	}
-
-#if R128_FIFO_DEBUG
-	DRM_ERROR("failed!\n");
-#endif
-	return -EBUSY;
-}
-
-static int r128_do_wait_for_fifo(drm_r128_private_t *dev_priv, int entries)
-{
-	int i;
-
-	for (i = 0; i < dev_priv->usec_timeout; i++) {
-		int slots = R128_READ(R128_GUI_STAT) & R128_GUI_FIFOCNT_MASK;
-		if (slots >= entries)
-			return 0;
-		udelay(1);
-	}
-
-#if R128_FIFO_DEBUG
-	DRM_ERROR("failed!\n");
-#endif
-	return -EBUSY;
-}
-
-static int r128_do_wait_for_idle(drm_r128_private_t *dev_priv)
-{
-	int i, ret;
-
-	ret = r128_do_wait_for_fifo(dev_priv, 64);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < dev_priv->usec_timeout; i++) {
-		if (!(R128_READ(R128_GUI_STAT) & R128_GUI_ACTIVE)) {
-			r128_do_pixcache_flush(dev_priv);
-			return 0;
-		}
-		udelay(1);
-	}
-
-#if R128_FIFO_DEBUG
-	DRM_ERROR("failed!\n");
-#endif
-	return -EBUSY;
-}
-
-/* ================================================================
- * CCE control, initialization
- */
-
-/* Load the microcode for the CCE */
-static int r128_cce_load_microcode(drm_r128_private_t *dev_priv)
-{
-	struct platform_device *pdev;
-	const struct firmware *fw;
-	const __be32 *fw_data;
-	int rc, i;
-
-	DRM_DEBUG("\n");
-
-	pdev = platform_device_register_simple("r128_cce", 0, NULL, 0);
-	if (IS_ERR(pdev)) {
-		pr_err("r128_cce: Failed to register firmware\n");
-		return PTR_ERR(pdev);
-	}
-	rc = request_firmware(&fw, FIRMWARE_NAME, &pdev->dev);
-	platform_device_unregister(pdev);
-	if (rc) {
-		pr_err("r128_cce: Failed to load firmware \"%s\"\n",
-		       FIRMWARE_NAME);
-		return rc;
-	}
-
-	if (fw->size != 256 * 8) {
-		pr_err("r128_cce: Bogus length %zu in firmware \"%s\"\n",
-		       fw->size, FIRMWARE_NAME);
-		rc = -EINVAL;
-		goto out_release;
-	}
-
-	r128_do_wait_for_idle(dev_priv);
-
-	fw_data = (const __be32 *)fw->data;
-	R128_WRITE(R128_PM4_MICROCODE_ADDR, 0);
-	for (i = 0; i < 256; i++) {
-		R128_WRITE(R128_PM4_MICROCODE_DATAH,
-			   be32_to_cpup(&fw_data[i * 2]));
-		R128_WRITE(R128_PM4_MICROCODE_DATAL,
-			   be32_to_cpup(&fw_data[i * 2 + 1]));
-	}
-
-out_release:
-	release_firmware(fw);
-	return rc;
-}
-
-/* Flush any pending commands to the CCE.  This should only be used just
- * prior to a wait for idle, as it informs the engine that the command
- * stream is ending.
- */
-static void r128_do_cce_flush(drm_r128_private_t *dev_priv)
-{
-	u32 tmp;
-
-	tmp = R128_READ(R128_PM4_BUFFER_DL_WPTR) | R128_PM4_BUFFER_DL_DONE;
-	R128_WRITE(R128_PM4_BUFFER_DL_WPTR, tmp);
-}
-
-/* Wait for the CCE to go idle.
- */
-int r128_do_cce_idle(drm_r128_private_t *dev_priv)
-{
-	int i;
-
-	for (i = 0; i < dev_priv->usec_timeout; i++) {
-		if (GET_RING_HEAD(dev_priv) == dev_priv->ring.tail) {
-			int pm4stat = R128_READ(R128_PM4_STAT);
-			if (((pm4stat & R128_PM4_FIFOCNT_MASK) >=
-			     dev_priv->cce_fifo_size) &&
-			    !(pm4stat & (R128_PM4_BUSY |
-					 R128_PM4_GUI_ACTIVE))) {
-				return r128_do_pixcache_flush(dev_priv);
-			}
-		}
-		udelay(1);
-	}
-
-#if R128_FIFO_DEBUG
-	DRM_ERROR("failed!\n");
-	r128_status(dev_priv);
-#endif
-	return -EBUSY;
-}
-
-/* Start the Concurrent Command Engine.
- */
-static void r128_do_cce_start(drm_r128_private_t *dev_priv)
-{
-	r128_do_wait_for_idle(dev_priv);
-
-	R128_WRITE(R128_PM4_BUFFER_CNTL,
-		   dev_priv->cce_mode | dev_priv->ring.size_l2qw
-		   | R128_PM4_BUFFER_CNTL_NOUPDATE);
-	R128_READ(R128_PM4_BUFFER_ADDR);	/* as per the sample code */
-	R128_WRITE(R128_PM4_MICRO_CNTL, R128_PM4_MICRO_FREERUN);
-
-	dev_priv->cce_running = 1;
-}
-
-/* Reset the Concurrent Command Engine.  This will not flush any pending
- * commands, so you must wait for the CCE command stream to complete
- * before calling this routine.
- */
-static void r128_do_cce_reset(drm_r128_private_t *dev_priv)
-{
-	R128_WRITE(R128_PM4_BUFFER_DL_WPTR, 0);
-	R128_WRITE(R128_PM4_BUFFER_DL_RPTR, 0);
-	dev_priv->ring.tail = 0;
-}
-
-/* Stop the Concurrent Command Engine.  This will not flush any pending
- * commands, so you must flush the command stream and wait for the CCE
- * to go idle before calling this routine.
- */
-static void r128_do_cce_stop(drm_r128_private_t *dev_priv)
-{
-	R128_WRITE(R128_PM4_MICRO_CNTL, 0);
-	R128_WRITE(R128_PM4_BUFFER_CNTL,
-		   R128_PM4_NONPM4 | R128_PM4_BUFFER_CNTL_NOUPDATE);
-
-	dev_priv->cce_running = 0;
-}
-
-/* Reset the engine.  This will stop the CCE if it is running.
- */
-static int r128_do_engine_reset(struct drm_device *dev)
-{
-	drm_r128_private_t *dev_priv = dev->dev_private;
-	u32 clock_cntl_index, mclk_cntl, gen_reset_cntl;
-
-	r128_do_pixcache_flush(dev_priv);
-
-	clock_cntl_index = R128_READ(R128_CLOCK_CNTL_INDEX);
-	mclk_cntl = R128_READ_PLL(dev, R128_MCLK_CNTL);
-
-	R128_WRITE_PLL(R128_MCLK_CNTL,
-		       mclk_cntl | R128_FORCE_GCP | R128_FORCE_PIPE3D_CP);
-
-	gen_reset_cntl = R128_READ(R128_GEN_RESET_CNTL);
-
-	/* Taken from the sample code - do not change */
-	R128_WRITE(R128_GEN_RESET_CNTL, gen_reset_cntl | R128_SOFT_RESET_GUI);
-	R128_READ(R128_GEN_RESET_CNTL);
-	R128_WRITE(R128_GEN_RESET_CNTL, gen_reset_cntl & ~R128_SOFT_RESET_GUI);
-	R128_READ(R128_GEN_RESET_CNTL);
-
-	R128_WRITE_PLL(R128_MCLK_CNTL, mclk_cntl);
-	R128_WRITE(R128_CLOCK_CNTL_INDEX, clock_cntl_index);
-	R128_WRITE(R128_GEN_RESET_CNTL, gen_reset_cntl);
-
-	/* Reset the CCE ring */
-	r128_do_cce_reset(dev_priv);
-
-	/* The CCE is no longer running after an engine reset */
-	dev_priv->cce_running = 0;
-
-	/* Reset any pending vertex, indirect buffers */
-	r128_freelist_reset(dev);
-
-	return 0;
-}
-
-static void r128_cce_init_ring_buffer(struct drm_device *dev,
-				      drm_r128_private_t *dev_priv)
-{
-	u32 ring_start;
-	u32 tmp;
-
-	DRM_DEBUG("\n");
-
-	/* The manual (p. 2) says this address is in "VM space".  This
-	 * means it's an offset from the start of AGP space.
-	 */
-#if IS_ENABLED(CONFIG_AGP)
-	if (!dev_priv->is_pci)
-		ring_start = dev_priv->cce_ring->offset - dev->agp->base;
-	else
-#endif
-		ring_start = dev_priv->cce_ring->offset -
-		    (unsigned long)dev->sg->virtual;
-
-	R128_WRITE(R128_PM4_BUFFER_OFFSET, ring_start | R128_AGP_OFFSET);
-
-	R128_WRITE(R128_PM4_BUFFER_DL_WPTR, 0);
-	R128_WRITE(R128_PM4_BUFFER_DL_RPTR, 0);
-
-	/* Set watermark control */
-	R128_WRITE(R128_PM4_BUFFER_WM_CNTL,
-		   ((R128_WATERMARK_L / 4) << R128_WMA_SHIFT)
-		   | ((R128_WATERMARK_M / 4) << R128_WMB_SHIFT)
-		   | ((R128_WATERMARK_N / 4) << R128_WMC_SHIFT)
-		   | ((R128_WATERMARK_K / 64) << R128_WB_WM_SHIFT));
-
-	/* Force read.  Why?  Because it's in the examples... */
-	R128_READ(R128_PM4_BUFFER_ADDR);
-
-	/* Turn on bus mastering */
-	tmp = R128_READ(R128_BUS_CNTL) & ~R128_BUS_MASTER_DIS;
-	R128_WRITE(R128_BUS_CNTL, tmp);
-}
-
-static int r128_do_init_cce(struct drm_device *dev, drm_r128_init_t *init)
-{
-	drm_r128_private_t *dev_priv;
-	int rc;
-
-	DRM_DEBUG("\n");
-
-	if (dev->dev_private) {
-		DRM_DEBUG("called when already initialized\n");
-		return -EINVAL;
-	}
-
-	dev_priv = kzalloc(sizeof(drm_r128_private_t), GFP_KERNEL);
-	if (dev_priv == NULL)
-		return -ENOMEM;
-
-	dev_priv->is_pci = init->is_pci;
-
-	if (dev_priv->is_pci && !dev->sg) {
-		DRM_ERROR("PCI GART memory not allocated!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-
-	dev_priv->usec_timeout = init->usec_timeout;
-	if (dev_priv->usec_timeout < 1 ||
-	    dev_priv->usec_timeout > R128_MAX_USEC_TIMEOUT) {
-		DRM_DEBUG("TIMEOUT problem!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-
-	dev_priv->cce_mode = init->cce_mode;
-
-	/* GH: Simple idle check.
-	 */
-	atomic_set(&dev_priv->idle_count, 0);
-
-	/* We don't support anything other than bus-mastering ring mode,
-	 * but the ring can be in either AGP or PCI space for the ring
-	 * read pointer.
-	 */
-	if ((init->cce_mode != R128_PM4_192BM) &&
-	    (init->cce_mode != R128_PM4_128BM_64INDBM) &&
-	    (init->cce_mode != R128_PM4_64BM_128INDBM) &&
-	    (init->cce_mode != R128_PM4_64BM_64VCBM_64INDBM)) {
-		DRM_DEBUG("Bad cce_mode!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-
-	switch (init->cce_mode) {
-	case R128_PM4_NONPM4:
-		dev_priv->cce_fifo_size = 0;
-		break;
-	case R128_PM4_192PIO:
-	case R128_PM4_192BM:
-		dev_priv->cce_fifo_size = 192;
-		break;
-	case R128_PM4_128PIO_64INDBM:
-	case R128_PM4_128BM_64INDBM:
-		dev_priv->cce_fifo_size = 128;
-		break;
-	case R128_PM4_64PIO_128INDBM:
-	case R128_PM4_64BM_128INDBM:
-	case R128_PM4_64PIO_64VCBM_64INDBM:
-	case R128_PM4_64BM_64VCBM_64INDBM:
-	case R128_PM4_64PIO_64VCPIO_64INDPIO:
-		dev_priv->cce_fifo_size = 64;
-		break;
-	}
-
-	switch (init->fb_bpp) {
-	case 16:
-		dev_priv->color_fmt = R128_DATATYPE_RGB565;
-		break;
-	case 32:
-	default:
-		dev_priv->color_fmt = R128_DATATYPE_ARGB8888;
-		break;
-	}
-	dev_priv->front_offset = init->front_offset;
-	dev_priv->front_pitch = init->front_pitch;
-	dev_priv->back_offset = init->back_offset;
-	dev_priv->back_pitch = init->back_pitch;
-
-	switch (init->depth_bpp) {
-	case 16:
-		dev_priv->depth_fmt = R128_DATATYPE_RGB565;
-		break;
-	case 24:
-	case 32:
-	default:
-		dev_priv->depth_fmt = R128_DATATYPE_ARGB8888;
-		break;
-	}
-	dev_priv->depth_offset = init->depth_offset;
-	dev_priv->depth_pitch = init->depth_pitch;
-	dev_priv->span_offset = init->span_offset;
-
-	dev_priv->front_pitch_offset_c = (((dev_priv->front_pitch / 8) << 21) |
-					  (dev_priv->front_offset >> 5));
-	dev_priv->back_pitch_offset_c = (((dev_priv->back_pitch / 8) << 21) |
-					 (dev_priv->back_offset >> 5));
-	dev_priv->depth_pitch_offset_c = (((dev_priv->depth_pitch / 8) << 21) |
-					  (dev_priv->depth_offset >> 5) |
-					  R128_DST_TILE);
-	dev_priv->span_pitch_offset_c = (((dev_priv->depth_pitch / 8) << 21) |
-					 (dev_priv->span_offset >> 5));
-
-	dev_priv->sarea = drm_legacy_getsarea(dev);
-	if (!dev_priv->sarea) {
-		DRM_ERROR("could not find sarea!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-
-	dev_priv->mmio = drm_legacy_findmap(dev, init->mmio_offset);
-	if (!dev_priv->mmio) {
-		DRM_ERROR("could not find mmio region!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-	dev_priv->cce_ring = drm_legacy_findmap(dev, init->ring_offset);
-	if (!dev_priv->cce_ring) {
-		DRM_ERROR("could not find cce ring region!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-	dev_priv->ring_rptr = drm_legacy_findmap(dev, init->ring_rptr_offset);
-	if (!dev_priv->ring_rptr) {
-		DRM_ERROR("could not find ring read pointer!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-	dev->agp_buffer_token = init->buffers_offset;
-	dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
-	if (!dev->agp_buffer_map) {
-		DRM_ERROR("could not find dma buffer region!\n");
-		dev->dev_private = (void *)dev_priv;
-		r128_do_cleanup_cce(dev);
-		return -EINVAL;
-	}
-
-	if (!dev_priv->is_pci) {
-		dev_priv->agp_textures =
-		    drm_legacy_findmap(dev, init->agp_textures_offset);
-		if (!dev_priv->agp_textures) {
-			DRM_ERROR("could not find agp texture region!\n");
-			dev->dev_private = (void *)dev_priv;
-			r128_do_cleanup_cce(dev);
-			return -EINVAL;
-		}
-	}
-
-	dev_priv->sarea_priv =
-	    (drm_r128_sarea_t *) ((u8 *) dev_priv->sarea->handle +
-				  init->sarea_priv_offset);
-
-#if IS_ENABLED(CONFIG_AGP)
-	if (!dev_priv->is_pci) {
-		drm_legacy_ioremap_wc(dev_priv->cce_ring, dev);
-		drm_legacy_ioremap_wc(dev_priv->ring_rptr, dev);
-		drm_legacy_ioremap_wc(dev->agp_buffer_map, dev);
-		if (!dev_priv->cce_ring->handle ||
-		    !dev_priv->ring_rptr->handle ||
-		    !dev->agp_buffer_map->handle) {
-			DRM_ERROR("Could not ioremap agp regions!\n");
-			dev->dev_private = (void *)dev_priv;
-			r128_do_cleanup_cce(dev);
-			return -ENOMEM;
-		}
-	} else
-#endif
-	{
-		dev_priv->cce_ring->handle =
-			(void *)(unsigned long)dev_priv->cce_ring->offset;
-		dev_priv->ring_rptr->handle =
-			(void *)(unsigned long)dev_priv->ring_rptr->offset;
-		dev->agp_buffer_map->handle =
-			(void *)(unsigned long)dev->agp_buffer_map->offset;
-	}
-
-#if IS_ENABLED(CONFIG_AGP)
-	if (!dev_priv->is_pci)
-		dev_priv->cce_buffers_offset = dev->agp->base;
-	else
-#endif
-		dev_priv->cce_buffers_offset = (unsigned long)dev->sg->virtual;
-
-	dev_priv->ring.start = (u32 *) dev_priv->cce_ring->handle;
-	dev_priv->ring.end = ((u32 *) dev_priv->cce_ring->handle
-			      + init->ring_size / sizeof(u32));
-	dev_priv->ring.size = init->ring_size;
-	dev_priv->ring.size_l2qw = order_base_2(init->ring_size / 8);
-
-	dev_priv->ring.tail_mask = (dev_priv->ring.size / sizeof(u32)) - 1;
-
-	dev_priv->ring.high_mark = 128;
-
-	dev_priv->sarea_priv->last_frame = 0;
-	R128_WRITE(R128_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);
-
-	dev_priv->sarea_priv->last_dispatch = 0;
-	R128_WRITE(R128_LAST_DISPATCH_REG, dev_priv->sarea_priv->last_dispatch);
-
-#if IS_ENABLED(CONFIG_AGP)
-	if (dev_priv->is_pci) {
-#endif
-		dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
-		dev_priv->gart_info.gart_table_location = DRM_ATI_GART_MAIN;
-		dev_priv->gart_info.table_size = R128_PCIGART_TABLE_SIZE;
-		dev_priv->gart_info.addr = NULL;
-		dev_priv->gart_info.bus_addr = 0;
-		dev_priv->gart_info.gart_reg_if = DRM_ATI_GART_PCI;
-		rc = drm_ati_pcigart_init(dev, &dev_priv->gart_info);
-		if (rc) {
-			DRM_ERROR("failed to init PCI GART!\n");
-			dev->dev_private = (void *)dev_priv;
-			r128_do_cleanup_cce(dev);
-			return rc;
-		}
-		R128_WRITE(R128_PCI_GART_PAGE, dev_priv->gart_info.bus_addr);
-#if IS_ENABLED(CONFIG_AGP)
-	}
-#endif
-
-	r128_cce_init_ring_buffer(dev, dev_priv);
-	rc = r128_cce_load_microcode(dev_priv);
-
-	dev->dev_private = (void *)dev_priv;
-
-	r128_do_engine_reset(dev);
-
-	if (rc) {
-		DRM_ERROR("Failed to load firmware!\n");
-		r128_do_cleanup_cce(dev);
-	}
-
-	return rc;
-}
-
-int r128_do_cleanup_cce(struct drm_device *dev)
-{
-
-	/* Make sure interrupts are disabled here because the uninstall ioctl
-	 * may not have been called from userspace and after dev_private
-	 * is freed, it's too late.
-	 */
-	if (dev->irq_enabled)
-		drm_legacy_irq_uninstall(dev);
-
-	if (dev->dev_private) {
-		drm_r128_private_t *dev_priv = dev->dev_private;
-
-#if IS_ENABLED(CONFIG_AGP)
-		if (!dev_priv->is_pci) {
-			if (dev_priv->cce_ring != NULL)
-				drm_legacy_ioremapfree(dev_priv->cce_ring, dev);
-			if (dev_priv->ring_rptr != NULL)
-				drm_legacy_ioremapfree(dev_priv->ring_rptr, dev);
-			if (dev->agp_buffer_map != NULL) {
-				drm_legacy_ioremapfree(dev->agp_buffer_map, dev);
-				dev->agp_buffer_map = NULL;
-			}
-		} else
-#endif
-		{
-			if (dev_priv->gart_info.bus_addr)
-				if (!drm_ati_pcigart_cleanup(dev,
-							&dev_priv->gart_info))
-					DRM_ERROR
-					    ("failed to cleanup PCI GART!\n");
-		}
-
-		kfree(dev->dev_private);
-		dev->dev_private = NULL;
-	}
-
-	return 0;
-}
-
-int r128_cce_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	drm_r128_init_t *init = data;
-
-	DRM_DEBUG("\n");
-
-	LOCK_TEST_WITH_RETURN(dev, file_priv);
-
-	switch (init->func) {
-	case R128_INIT_CCE:
-		return r128_do_init_cce(dev, init);
-	case R128_CLEANUP_CCE:
-		return r128_do_cleanup_cce(dev);
-	}
-
-	return -EINVAL;
-}
-
-int r128_cce_start(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	drm_r128_private_t *dev_priv = dev->dev_private;
-	DRM_DEBUG("\n");
-
-	LOCK_TEST_WITH_RETURN(dev, file_priv);
-
-	DEV_INIT_TEST_WITH_RETURN(dev_priv);
-
-	if (dev_priv->cce_running || dev_priv->cce_mode == R128_PM4_NONPM4) {
-		DRM_DEBUG("while CCE running\n");
-		return 0;
-	}
-
-	r128_do_cce_start(dev_priv);
-
-	return 0;
-}
-
-/* Stop the CCE.  The engine must have been idled before calling this
- * routine.
- */
-int r128_cce_stop(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	drm_r128_private_t *dev_priv = dev->dev_private;
-	drm_r128_cce_stop_t *stop = data;
-	int ret;
-	DRM_DEBUG("\n");