index : renesas/drm.git	android live master
	libdrm, cloned from git://anongit.freedesktop.org/mesa/drm	Laurent Pinchart

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log msg author committer range

path: root/linux-core/drm_fops.c

Age	Commit message (Collapse)	Author
2005-06-04	misc cleanup patch from Adrian Bunk	Dave Airlie
2004-10-31	Allow drivers to override reclaim_buffers in an OS-independent way by	Felix Kuehling
	passing drm_device_t* as first parameter, like in the BSD version.
2004-10-28	Break poll() to make it match the Xserver's broken expectations.	Jon Smirl
2004-10-18	Update Doxygen configuration & comments.	Jose Fonseca
2004-10-15	Move drm_cpu_valid out of drm_init. drm_init is empty now.	Jon Smirl
2004-10-13	Add a poll function that alternates between zero and normal poll return to	Jon Smirl
	bring DRM into conformance with normal poll().
2004-10-12	Breakout heads into their own data structures.	Jon Smirl
2004-10-10	Rename fn_tbl to driver. Core driver now uses pci_driver name which	Jon Smirl
	reflects the personality name.
2004-09-30	Lindent of core build. Drivers checked for no binary diffs. A few files	Jon Smirl
	weren't Lindent's because their comments didn't convert very well. A bunch of other minor clean up with no code implact included.
2004-09-30	Move things around to reduce public symbols and even out files. Switch to	Jon Smirl
	get_order from drm_order.
2004-09-30	Make fops per driver instead of global, remove default flush, poll, read	Jon Smirl
	functions
2004-09-27	First check in for DRM that splits core from personality modules	Jon Smirl
2004-09-05	merge back bunch of whitespace and misc changes from kernel	Dave Airlie
2004-08-27	__NO_VERSION__ hasn't been needed since 2.3 days ditch it...	Dave Airlie
2004-08-24	Merged drmfntbl-0-0-2	Dave Airlie
2004-08-17	Merged drmfntbl-0-0-1	Dave Airlie
2004-07-20	first set of __user annotations from kernel (Al Viro)	Dave Airlie
2004-04-08	long dev_t patches from 2.6 tree	Dave Airlie
2003-11-04	Memory layout transition:	Michel Daenzer
	the 2D driver initializes MC_FB_LOCATION and related registers sanely the DRM deduces the layout from these registers clients use the new SETPARAM ioctl to tell the DRM where they think the framebuffer is located in the card's address space the DRM uses all this information to check client state and fix it up if necessary This is a prerequisite for things like direct rendering with IGP chips and video capturing.
2003-05-27	Merged DRM documentation.	Jose Fonseca
2003-04-23	Install dummy/noop read & poll fops unless the driver has replacements.	Keith Whitwell
2003-04-22	remove DRM read, poll and write_string	Keith Whitwell
2003-04-17	Bring some drm module changes over from the XFree86 trunk:	David Dawes
	- Reset 'bound' flag for an agp entry after undbind succeeded in drm_agpsupport.h (Egbert Eich). - Ignore hw_lock for drm device if lock was set by a different instance (ie Xserver) to prevent second server from spinning in driver release function (currently only relevant for i8xx drm drivers) (David Dawes). - Use the agpgart "key" for the unique handle for bindings rather than the memory address (the key is guaranteed to be unique) (David Dawes).
2003-03-25	linux merge for drm	Alan Hourihane
2002-05-16	Allow drm to build under 2.4 and 2.5(.14)	Keith Whitwell
2002-01-27	First pass merge of XFree86 4.2.0 import.	David Dawes
2001-08-19	No one's maintaining 2.2.x support - so remove all the cruft.	Alan Hourihane
2001-08-07	Lots of DRM fixes: added new pieces of template code so the ffb driver can	Jeff Hartmann
	be ported, rolled back r128 and i810 version bumps so 4.1.0 works with cvs kernel modules, added Config.in and updated Makefile.kernel, incorporated lots of drm fixes inspired by patches sent by Redhat, made DRM(realloc) usage check for NULL allocations, restructure driver init routines to export dev_priv only when initialized and to check for all error conditions.
2001-05-01	Import of XFree86 4.0.99.3	David Dawes
2001-04-09	Import -f XFree86 4.0.99.2	David Dawes
2001-04-05	Merged ati-pcigart-1-0-0	Kevin E Martin
2001-02-16	- Clean up the way customization of the templates is done.	Gareth Hughes
	- Fix old-style DMA for gamma driver (please test). - Pull out IRQ handling into drm_dma.h (please test on i810, gamma). - Lots of general cleanups, remove compiler warnings etc.
2001-02-15	Merge mga-1-0-0-branch into trunk.	Gareth Hughes

generated by cgit v1.2.3 (git 2.25.1) at 2024-09-06 07:46:02 +0000

/* 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 "drmP.h"
#include "drm.h"
#include "r128_drm.h"
#include "r128_drv.h"

#define R128_FIFO_DEBUG		0

/* CCE microcode (from ATI) */
static u32 r128_cce_microcode[] = {
	0, 276838400, 0, 268449792, 2, 142, 2, 145, 0, 1076765731, 0,
	1617039951, 0, 774592877, 0, 1987540286, 0, 2307490946U, 0,
	599558925, 0, 589505315, 0, 596487092, 0, 589505315, 1,
	11544576, 1, 206848, 1, 311296, 1, 198656, 2, 912273422, 11,
	262144, 0, 0, 1, 33559837, 1, 7438, 1, 14809, 1, 6615, 12, 28,
	1, 6614, 12, 28, 2, 23, 11, 18874368, 0, 16790922, 1, 409600, 9,
	30, 1, 147854772, 16, 420483072, 3, 8192, 0, 10240, 1, 198656,
	1, 15630, 1, 51200, 10, 34858, 9, 42, 1, 33559823, 2, 10276, 1,
	15717, 1, 15718, 2, 43, 1, 15936948, 1, 570480831, 1, 14715071,
	12, 322123831, 1, 33953125, 12, 55, 1, 33559908, 1, 15718, 2,
	46, 4, 2099258, 1, 526336, 1, 442623, 4, 4194365, 1, 509952, 1,
	459007, 3, 0, 12, 92, 2, 46, 12, 176, 1, 15734, 1, 206848, 1,
	18432, 1, 133120, 1, 100670734, 1, 149504, 1, 165888, 1,
	15975928, 1, 1048576, 6, 3145806, 1, 15715, 16, 2150645232U, 2,
	268449859, 2, 10307, 12, 176, 1, 15734, 1, 15735, 1, 15630, 1,
	15631, 1, 5253120, 6, 3145810, 16, 2150645232U, 1, 15864, 2, 82,
	1, 343310, 1, 1064207, 2, 3145813, 1, 15728, 1, 7817, 1, 15729,
	3, 15730, 12, 92, 2, 98, 1, 16168, 1, 16167, 1, 16002, 1, 16008,
	1, 15974, 1, 15975, 1, 15990, 1, 15976, 1, 15977, 1, 15980, 0,
	15981, 1, 10240, 1, 5253120, 1, 15720, 1, 198656, 6, 110, 1,
	180224, 1, 103824738, 2, 112, 2, 3145839, 0, 536885440, 1,
	114880, 14, 125, 12, 206975, 1, 33559995, 12, 198784, 0,
	33570236, 1, 15803, 0, 15804, 3, 294912, 1, 294912, 3, 442370,
	1, 11544576, 0, 811612160, 1, 12593152, 1, 11536384, 1,
	14024704, 7, 310382726, 0, 10240, 1, 14796, 1, 14797, 1, 14793,
	1, 14794, 0, 14795, 1, 268679168, 1, 9437184, 1, 268449792, 1,
	198656, 1, 9452827, 1, 1075854602, 1, 1075854603, 1, 557056, 1,
	114880, 14, 159, 12, 198784, 1, 1109409213, 12, 198783, 1,
	1107312059, 12, 198784, 1, 1109409212, 2, 162, 1, 1075854781, 1,
	1073757627, 1, 1075854780, 1, 540672, 1, 10485760, 6, 3145894,
	16, 274741248, 9, 168, 3, 4194304, 3, 4209949, 0, 0, 0, 256, 14,
	174, 1, 114857, 1, 33560007, 12, 176, 0, 10240, 1, 114858, 1,
	33560018, 1, 114857, 3, 33560007, 1, 16008, 1, 114874, 1,
	33560360, 1, 114875, 1, 33560154, 0, 15963, 0, 256, 0, 4096, 1,
	409611, 9, 188, 0, 10240, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};

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;
		}
		DRM_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;
		DRM_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;
		}
		DRM_UDELAY(1);
	}

#if R128_FIFO_DEBUG
	DRM_ERROR("failed!\n");
#endif
	return -EBUSY;
}

/* ================================================================
 * CCE control, initialization
 */

/* Load the microcode for the CCE */
static void r128_cce_load_microcode(drm_r128_private_t * dev_priv)
{
	int i;

	DRM_DEBUG("\n");

	r128_do_wait_for_idle(dev_priv);

	R128_WRITE(R128_PM4_MICROCODE_ADDR, 0);
	for (i = 0; i < 256; i++) {
		R128_WRITE(R128_PM4_MICROCODE_DATAH, r128_cce_microcode[i * 2]);
		R128_WRITE(R128_PM4_MICROCODE_DATAL,
			   r128_cce_microcode[i * 2 + 1]);
	}
}

/* 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);
			}
		}
		DRM_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 __OS_HAS_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;

	DRM_DEBUG("\n");

	dev_priv = drm_alloc(sizeof(drm_r128_private_t), DRM_MEM_DRIVER);
	if (dev_priv == NULL)
		return -ENOMEM;

	memset(dev_priv, 0, sizeof(drm_r128_private_t));

	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_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_core_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_core_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_core_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_core_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_core_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 __OS_HAS_AGP
	if (!dev_priv->is_pci) {
		drm_core_ioremap(dev_priv->cce_ring, dev);
		drm_core_ioremap(dev_priv->ring_rptr, dev);
		drm_core_ioremap(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 *)dev_priv->cce_ring->offset;
		dev_priv->ring_rptr->handle =
		    (void *)dev_priv->ring_rptr->offset;
		dev->agp_buffer_map->handle =
		    (void *)dev->agp_buffer_map->offset;
	}

#if __OS_HAS_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 = drm_order(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 __OS_HAS_AGP
	if (dev_priv->is_pci) {
#endif
		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;
		if (!drm_ati_pcigart_init(dev, &dev_priv->gart_info)) {