1 files changed, 0 insertions, 1095 deletions

diff --git a/drivers/char/drm/savage_bci.c b/drivers/char/drm/savage_bci.c
deleted file mode 100644
index d465b2f9c1c..00000000000
--- a/drivers/char/drm/savage_bci.c
+++ /dev/null
@@ -1,1095 +0,0 @@
-/* savage_bci.c -- BCI support for Savage
- *
- * Copyright 2004  Felix Kuehling
- * 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, sub license,
- * 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
- * NON-INFRINGEMENT. IN NO EVENT SHALL FELIX KUEHLING 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 "drmP.h"
-#include "savage_drm.h"
-#include "savage_drv.h"
-
-/* Need a long timeout for shadow status updates can take a while
- * and so can waiting for events when the queue is full. */
-#define SAVAGE_DEFAULT_USEC_TIMEOUT	1000000	/* 1s */
-#define SAVAGE_EVENT_USEC_TIMEOUT	5000000	/* 5s */
-#define SAVAGE_FREELIST_DEBUG		0
-
-static int savage_do_cleanup_bci(struct drm_device *dev);
-
-static int
-savage_bci_wait_fifo_shadow(drm_savage_private_t * dev_priv, unsigned int n)
-{
-	uint32_t mask = dev_priv->status_used_mask;
-	uint32_t threshold = dev_priv->bci_threshold_hi;
-	uint32_t status;
-	int i;
-
-#if SAVAGE_BCI_DEBUG
-	if (n > dev_priv->cob_size + SAVAGE_BCI_FIFO_SIZE - threshold)
-		DRM_ERROR("Trying to emit %d words "
-			  "(more than guaranteed space in COB)\n", n);
-#endif
-
-	for (i = 0; i < SAVAGE_DEFAULT_USEC_TIMEOUT; i++) {
-		DRM_MEMORYBARRIER();
-		status = dev_priv->status_ptr[0];
-		if ((status & mask) < threshold)
-			return 0;
-		DRM_UDELAY(1);
-	}
-
-#if SAVAGE_BCI_DEBUG
-	DRM_ERROR("failed!\n");
-	DRM_INFO("   status=0x%08x, threshold=0x%08x\n", status, threshold);
-#endif
-	return -EBUSY;
-}
-
-static int
-savage_bci_wait_fifo_s3d(drm_savage_private_t * dev_priv, unsigned int n)
-{
-	uint32_t maxUsed = dev_priv->cob_size + SAVAGE_BCI_FIFO_SIZE - n;
-	uint32_t status;
-	int i;
-
-	for (i = 0; i < SAVAGE_DEFAULT_USEC_TIMEOUT; i++) {
-		status = SAVAGE_READ(SAVAGE_STATUS_WORD0);
-		if ((status & SAVAGE_FIFO_USED_MASK_S3D) <= maxUsed)
-			return 0;
-		DRM_UDELAY(1);
-	}
-
-#if SAVAGE_BCI_DEBUG
-	DRM_ERROR("failed!\n");
-	DRM_INFO("   status=0x%08x\n", status);
-#endif
-	return -EBUSY;
-}
-
-static int
-savage_bci_wait_fifo_s4(drm_savage_private_t * dev_priv, unsigned int n)
-{
-	uint32_t maxUsed = dev_priv->cob_size + SAVAGE_BCI_FIFO_SIZE - n;
-	uint32_t status;
-	int i;
-
-	for (i = 0; i < SAVAGE_DEFAULT_USEC_TIMEOUT; i++) {
-		status = SAVAGE_READ(SAVAGE_ALT_STATUS_WORD0);
-		if ((status & SAVAGE_FIFO_USED_MASK_S4) <= maxUsed)
-			return 0;
-		DRM_UDELAY(1);
-	}
-
-#if SAVAGE_BCI_DEBUG
-	DRM_ERROR("failed!\n");
-	DRM_INFO("   status=0x%08x\n", status);
-#endif
-	return -EBUSY;
-}
-
-/*
- * Waiting for events.
- *
- * The BIOSresets the event tag to 0 on mode changes. Therefore we
- * never emit 0 to the event tag. If we find a 0 event tag we know the
- * BIOS stomped on it and return success assuming that the BIOS waited
- * for engine idle.
- *
- * Note: if the Xserver uses the event tag it has to follow the same
- * rule. Otherwise there may be glitches every 2^16 events.
- */
-static int
-savage_bci_wait_event_shadow(drm_savage_private_t * dev_priv, uint16_t e)
-{
-	uint32_t status;
-	int i;
-
-	for (i = 0; i < SAVAGE_EVENT_USEC_TIMEOUT; i++) {
-		DRM_MEMORYBARRIER();
-		status = dev_priv->status_ptr[1];
-		if ((((status & 0xffff) - e) & 0xffff) <= 0x7fff ||
-		    (status & 0xffff) == 0)
-			return 0;
-		DRM_UDELAY(1);
-	}
-
-#if SAVAGE_BCI_DEBUG
-	DRM_ERROR("failed!\n");
-	DRM_INFO("   status=0x%08x, e=0x%04x\n", status, e);
-#endif
-
-	return -EBUSY;
-}
-
-static int
-savage_bci_wait_event_reg(drm_savage_private_t * dev_priv, uint16_t e)
-{
-	uint32_t status;
-	int i;
-
-	for (i = 0; i < SAVAGE_EVENT_USEC_TIMEOUT; i++) {
-		status = SAVAGE_READ(SAVAGE_STATUS_WORD1);
-		if ((((status & 0xffff) - e) & 0xffff) <= 0x7fff ||
-		    (status & 0xffff) == 0)
-			return 0;
-		DRM_UDELAY(1);
-	}
-
-#if SAVAGE_BCI_DEBUG
-	DRM_ERROR("failed!\n");
-	DRM_INFO("   status=0x%08x, e=0x%04x\n", status, e);
-#endif
-
-	return -EBUSY;
-}
-
-uint16_t savage_bci_emit_event(drm_savage_private_t * dev_priv,
-			       unsigned int flags)
-{
-	uint16_t count;
-	BCI_LOCALS;
-
-	if (dev_priv->status_ptr) {
-		/* coordinate with Xserver */
-		count = dev_priv->status_ptr[1023];
-		if (count < dev_priv->event_counter)
-			dev_priv->event_wrap++;
-	} else {
-		count = dev_priv->event_counter;
-	}
-	count = (count + 1) & 0xffff;
-	if (count == 0) {
-		count++;	/* See the comment above savage_wait_event_*. */
-		dev_priv->event_wrap++;
-	}
-	dev_priv->event_counter = count;
-	if (dev_priv->status_ptr)
-		dev_priv->status_ptr[1023] = (uint32_t) count;
-
-	if ((flags & (SAVAGE_WAIT_2D | SAVAGE_WAIT_3D))) {
-		unsigned int wait_cmd = BCI_CMD_WAIT;
-		if ((flags & SAVAGE_WAIT_2D))
-			wait_cmd |= BCI_CMD_WAIT_2D;
-		if ((flags & SAVAGE_WAIT_3D))
-			wait_cmd |= BCI_CMD_WAIT_3D;
-		BEGIN_BCI(2);
-		BCI_WRITE(wait_cmd);
-	} else {
-		BEGIN_BCI(1);
-	}
-	BCI_WRITE(BCI_CMD_UPDATE_EVENT_TAG | (uint32_t) count);
-
-	return count;
-}
-
-/*
- * Freelist management
- */
-static int savage_freelist_init(struct drm_device * dev)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	struct drm_device_dma *dma = dev->dma;
-	struct drm_buf *buf;
-	drm_savage_buf_priv_t *entry;
-	int i;
-	DRM_DEBUG("count=%d\n", dma->buf_count);
-
-	dev_priv->head.next = &dev_priv->tail;
-	dev_priv->head.prev = NULL;
-	dev_priv->head.buf = NULL;
-
-	dev_priv->tail.next = NULL;
-	dev_priv->tail.prev = &dev_priv->head;
-	dev_priv->tail.buf = NULL;
-
-	for (i = 0; i < dma->buf_count; i++) {
-		buf = dma->buflist[i];
-		entry = buf->dev_private;
-
-		SET_AGE(&entry->age, 0, 0);
-		entry->buf = buf;
-
-		entry->next = dev_priv->head.next;
-		entry->prev = &dev_priv->head;
-		dev_priv->head.next->prev = entry;
-		dev_priv->head.next = entry;
-	}
-
-	return 0;
-}
-
-static struct drm_buf *savage_freelist_get(struct drm_device * dev)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	drm_savage_buf_priv_t *tail = dev_priv->tail.prev;
-	uint16_t event;
-	unsigned int wrap;
-	DRM_DEBUG("\n");
-
-	UPDATE_EVENT_COUNTER();
-	if (dev_priv->status_ptr)
-		event = dev_priv->status_ptr[1] & 0xffff;
-	else
-		event = SAVAGE_READ(SAVAGE_STATUS_WORD1) & 0xffff;
-	wrap = dev_priv->event_wrap;
-	if (event > dev_priv->event_counter)
-		wrap--;		/* hardware hasn't passed the last wrap yet */
-
-	DRM_DEBUG("   tail=0x%04x %d\n", tail->age.event, tail->age.wrap);
-	DRM_DEBUG("   head=0x%04x %d\n", event, wrap);
-
-	if (tail->buf && (TEST_AGE(&tail->age, event, wrap) || event == 0)) {
-		drm_savage_buf_priv_t *next = tail->next;
-		drm_savage_buf_priv_t *prev = tail->prev;
-		prev->next = next;
-		next->prev = prev;
-		tail->next = tail->prev = NULL;
-		return tail->buf;
-	}
-
-	DRM_DEBUG("returning NULL, tail->buf=%p!\n", tail->buf);
-	return NULL;
-}
-
-void savage_freelist_put(struct drm_device * dev, struct drm_buf * buf)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	drm_savage_buf_priv_t *entry = buf->dev_private, *prev, *next;
-
-	DRM_DEBUG("age=0x%04x wrap=%d\n", entry->age.event, entry->age.wrap);
-
-	if (entry->next != NULL || entry->prev != NULL) {
-		DRM_ERROR("entry already on freelist.\n");
-		return;
-	}
-
-	prev = &dev_priv->head;
-	next = prev->next;
-	prev->next = entry;
-	next->prev = entry;
-	entry->prev = prev;
-	entry->next = next;
-}
-
-/*
- * Command DMA
- */
-static int savage_dma_init(drm_savage_private_t * dev_priv)
-{
-	unsigned int i;
-
-	dev_priv->nr_dma_pages = dev_priv->cmd_dma->size /
-	    (SAVAGE_DMA_PAGE_SIZE * 4);
-	dev_priv->dma_pages = drm_alloc(sizeof(drm_savage_dma_page_t) *
-					dev_priv->nr_dma_pages, DRM_MEM_DRIVER);
-	if (dev_priv->dma_pages == NULL)
-		return -ENOMEM;
-
-	for (i = 0; i < dev_priv->nr_dma_pages; ++i) {
-		SET_AGE(&dev_priv->dma_pages[i].age, 0, 0);
-		dev_priv->dma_pages[i].used = 0;
-		dev_priv->dma_pages[i].flushed = 0;
-	}
-	SET_AGE(&dev_priv->last_dma_age, 0, 0);
-
-	dev_priv->first_dma_page = 0;
-	dev_priv->current_dma_page = 0;
-
-	return 0;
-}
-
-void savage_dma_reset(drm_savage_private_t * dev_priv)
-{
-	uint16_t event;
-	unsigned int wrap, i;
-	event = savage_bci_emit_event(dev_priv, 0);
-	wrap = dev_priv->event_wrap;
-	for (i = 0; i < dev_priv->nr_dma_pages; ++i) {
-		SET_AGE(&dev_priv->dma_pages[i].age, event, wrap);
-		dev_priv->dma_pages[i].used = 0;
-		dev_priv->dma_pages[i].flushed = 0;
-	}
-	SET_AGE(&dev_priv->last_dma_age, event, wrap);
-	dev_priv->first_dma_page = dev_priv->current_dma_page = 0;
-}
-
-void savage_dma_wait(drm_savage_private_t * dev_priv, unsigned int page)
-{
-	uint16_t event;
-	unsigned int wrap;
-
-	/* Faked DMA buffer pages don't age. */
-	if (dev_priv->cmd_dma == &dev_priv->fake_dma)
-		return;
-
-	UPDATE_EVENT_COUNTER();
-	if (dev_priv->status_ptr)
-		event = dev_priv->status_ptr[1] & 0xffff;
-	else
-		event = SAVAGE_READ(SAVAGE_STATUS_WORD1) & 0xffff;
-	wrap = dev_priv->event_wrap;
-	if (event > dev_priv->event_counter)
-		wrap--;		/* hardware hasn't passed the last wrap yet */
-
-	if (dev_priv->dma_pages[page].age.wrap > wrap ||
-	    (dev_priv->dma_pages[page].age.wrap == wrap &&
-	     dev_priv->dma_pages[page].age.event > event)) {
-		if (dev_priv->wait_evnt(dev_priv,
-					dev_priv->dma_pages[page].age.event)
-		    < 0)
-			DRM_ERROR("wait_evnt failed!\n");
-	}
-}
-
-uint32_t *savage_dma_alloc(drm_savage_private_t * dev_priv, unsigned int n)
-{
-	unsigned int cur = dev_priv->current_dma_page;
-	unsigned int rest = SAVAGE_DMA_PAGE_SIZE -
-	    dev_priv->dma_pages[cur].used;
-	unsigned int nr_pages = (n - rest + SAVAGE_DMA_PAGE_SIZE - 1) /
-	    SAVAGE_DMA_PAGE_SIZE;
-	uint32_t *dma_ptr;
-	unsigned int i;
-
-	DRM_DEBUG("cur=%u, cur->used=%u, n=%u, rest=%u, nr_pages=%u\n",
-		  cur, dev_priv->dma_pages[cur].used, n, rest, nr_pages);
-
-	if (cur + nr_pages < dev_priv->nr_dma_pages) {
-		dma_ptr = (uint32_t *) dev_priv->cmd_dma->handle +
-		    cur * SAVAGE_DMA_PAGE_SIZE + dev_priv->dma_pages[cur].used;
-		if (n < rest)
-			rest = n;
-		dev_priv->dma_pages[cur].used += rest;
-		n -= rest;
-		cur++;
-	} else {
-		dev_priv->dma_flush(dev_priv);
-		nr_pages =
-		    (n + SAVAGE_DMA_PAGE_SIZE - 1) / SAVAGE_DMA_PAGE_SIZE;
-		for (i = cur; i < dev_priv->nr_dma_pages; ++i) {
-			dev_priv->dma_pages[i].age = dev_priv->last_dma_age;
-			dev_priv->dma_pages[i].used = 0;
-			dev_priv->dma_pages[i].flushed = 0;
-		}
-		dma_ptr = (uint32_t *) dev_priv->cmd_dma->handle;
-		dev_priv->first_dma_page = cur = 0;
-	}
-	for (i = cur; nr_pages > 0; ++i, --nr_pages) {
-#if SAVAGE_DMA_DEBUG
-		if (dev_priv->dma_pages[i].used) {
-			DRM_ERROR("unflushed page %u: used=%u\n",
-				  i, dev_priv->dma_pages[i].used);
-		}
-#endif
-		if (n > SAVAGE_DMA_PAGE_SIZE)
-			dev_priv->dma_pages[i].used = SAVAGE_DMA_PAGE_SIZE;
-		else
-			dev_priv->dma_pages[i].used = n;
-		n -= SAVAGE_DMA_PAGE_SIZE;
-	}
-	dev_priv->current_dma_page = --i;
-
-	DRM_DEBUG("cur=%u, cur->used=%u, n=%u\n",
-		  i, dev_priv->dma_pages[i].used, n);
-
-	savage_dma_wait(dev_priv, dev_priv->current_dma_page);
-
-	return dma_ptr;
-}
-
-static void savage_dma_flush(drm_savage_private_t * dev_priv)
-{
-	unsigned int first = dev_priv->first_dma_page;
-	unsigned int cur = dev_priv->current_dma_page;
-	uint16_t event;
-	unsigned int wrap, pad, align, len, i;
-	unsigned long phys_addr;
-	BCI_LOCALS;
-
-	if (first == cur &&
-	    dev_priv->dma_pages[cur].used == dev_priv->dma_pages[cur].flushed)
-		return;
-
-	/* pad length to multiples of 2 entries
-	 * align start of next DMA block to multiles of 8 entries */
-	pad = -dev_priv->dma_pages[cur].used & 1;
-	align = -(dev_priv->dma_pages[cur].used + pad) & 7;
-
-	DRM_DEBUG("first=%u, cur=%u, first->flushed=%u, cur->used=%u, "
-		  "pad=%u, align=%u\n",
-		  first, cur, dev_priv->dma_pages[first].flushed,
-		  dev_priv->dma_pages[cur].used, pad, align);
-
-	/* pad with noops */
-	if (pad) {
-		uint32_t *dma_ptr = (uint32_t *) dev_priv->cmd_dma->handle +
-		    cur * SAVAGE_DMA_PAGE_SIZE + dev_priv->dma_pages[cur].used;
-		dev_priv->dma_pages[cur].used += pad;
-		while (pad != 0) {
-			*dma_ptr++ = BCI_CMD_WAIT;
-			pad--;
-		}
-	}
-
-	DRM_MEMORYBARRIER();
-
-	/* do flush ... */
-	phys_addr = dev_priv->cmd_dma->offset +
-	    (first * SAVAGE_DMA_PAGE_SIZE +
-	     dev_priv->dma_pages[first].flushed) * 4;
-	len = (cur - first) * SAVAGE_DMA_PAGE_SIZE +
-	    dev_priv->dma_pages[cur].used - dev_priv->dma_pages[first].flushed;
-
-	DRM_DEBUG("phys_addr=%lx, len=%u\n",
-		  phys_addr | dev_priv->dma_type, len);
-
-	BEGIN_BCI(3);
-	BCI_SET_REGISTERS(SAVAGE_DMABUFADDR, 1);
-	BCI_WRITE(phys_addr | dev_priv->dma_type);
-	BCI_DMA(len);
-
-	/* fix alignment of the start of the next block */
-	dev_priv->dma_pages[cur].used += align;
-
-	/* age DMA pages */
-	event = savage_bci_emit_event(dev_priv, 0);
-	wrap = dev_priv->event_wrap;
-	for (i = first; i < cur; ++i) {
-		SET_AGE(&dev_priv->dma_pages[i].age, event, wrap);
-		dev_priv->dma_pages[i].used = 0;
-		dev_priv->dma_pages[i].flushed = 0;
-	}
-	/* age the current page only when it's full */
-	if (dev_priv->dma_pages[cur].used == SAVAGE_DMA_PAGE_SIZE) {
-		SET_AGE(&dev_priv->dma_pages[cur].age, event, wrap);
-		dev_priv->dma_pages[cur].used = 0;
-		dev_priv->dma_pages[cur].flushed = 0;
-		/* advance to next page */
-		cur++;
-		if (cur == dev_priv->nr_dma_pages)
-			cur = 0;
-		dev_priv->first_dma_page = dev_priv->current_dma_page = cur;
-	} else {
-		dev_priv->first_dma_page = cur;
-		dev_priv->dma_pages[cur].flushed = dev_priv->dma_pages[i].used;
-	}
-	SET_AGE(&dev_priv->last_dma_age, event, wrap);
-
-	DRM_DEBUG("first=cur=%u, cur->used=%u, cur->flushed=%u\n", cur,
-		  dev_priv->dma_pages[cur].used,
-		  dev_priv->dma_pages[cur].flushed);
-}
-
-static void savage_fake_dma_flush(drm_savage_private_t * dev_priv)
-{
-	unsigned int i, j;
-	BCI_LOCALS;
-
-	if (dev_priv->first_dma_page == dev_priv->current_dma_page &&
-	    dev_priv->dma_pages[dev_priv->current_dma_page].used == 0)
-		return;
-
-	DRM_DEBUG("first=%u, cur=%u, cur->used=%u\n",
-		  dev_priv->first_dma_page, dev_priv->current_dma_page,
-		  dev_priv->dma_pages[dev_priv->current_dma_page].used);
-
-	for (i = dev_priv->first_dma_page;
-	     i <= dev_priv->current_dma_page && dev_priv->dma_pages[i].used;
-	     ++i) {
-		uint32_t *dma_ptr = (uint32_t *) dev_priv->cmd_dma->handle +
-		    i * SAVAGE_DMA_PAGE_SIZE;
-#if SAVAGE_DMA_DEBUG
-		/* Sanity check: all pages except the last one must be full. */
-		if (i < dev_priv->current_dma_page &&
-		    dev_priv->dma_pages[i].used != SAVAGE_DMA_PAGE_SIZE) {
-			DRM_ERROR("partial DMA page %u: used=%u",
-				  i, dev_priv->dma_pages[i].used);
-		}
-#endif
-		BEGIN_BCI(dev_priv->dma_pages[i].used);
-		for (j = 0; j < dev_priv->dma_pages[i].used; ++j) {
-			BCI_WRITE(dma_ptr[j]);
-		}
-		dev_priv->dma_pages[i].used = 0;
-	}
-
-	/* reset to first page */
-	dev_priv->first_dma_page = dev_priv->current_dma_page = 0;
-}
-
-int savage_driver_load(struct drm_device *dev, unsigned long chipset)
-{
-	drm_savage_private_t *dev_priv;
-
-	dev_priv = drm_alloc(sizeof(drm_savage_private_t), DRM_MEM_DRIVER);
-	if (dev_priv == NULL)
-		return -ENOMEM;
-
-	memset(dev_priv, 0, sizeof(drm_savage_private_t));
-	dev->dev_private = (void *)dev_priv;
-
-	dev_priv->chipset = (enum savage_family)chipset;
-
-	return 0;
-}
-
-
-/*
- * Initalize mappings. On Savage4 and SavageIX the alignment
- * and size of the aperture is not suitable for automatic MTRR setup
- * in drm_addmap. Therefore we add them manually before the maps are
- * initialized, and tear them down on last close.
- */
-int savage_driver_firstopen(struct drm_device *dev)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	unsigned long mmio_base, fb_base, fb_size, aperture_base;
-	/* fb_rsrc and aper_rsrc aren't really used currently, but still exist
-	 * in case we decide we need information on the BAR for BSD in the
-	 * future.
-	 */
-	unsigned int fb_rsrc, aper_rsrc;
-	int ret = 0;
-
-	dev_priv->mtrr[0].handle = -1;
-	dev_priv->mtrr[1].handle = -1;
-	dev_priv->mtrr[2].handle = -1;
-	if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
-		fb_rsrc = 0;
-		fb_base = drm_get_resource_start(dev, 0);
-		fb_size = SAVAGE_FB_SIZE_S3;
-		mmio_base = fb_base + SAVAGE_FB_SIZE_S3;
-		aper_rsrc = 0;
-		aperture_base = fb_base + SAVAGE_APERTURE_OFFSET;
-		/* this should always be true */
-		if (drm_get_resource_len(dev, 0) == 0x08000000) {
-			/* Don't make MMIO write-cobining! We need 3
-			 * MTRRs. */
-			dev_priv->mtrr[0].base = fb_base;
-			dev_priv->mtrr[0].size = 0x01000000;
-			dev_priv->mtrr[0].handle =
-			    drm_mtrr_add(dev_priv->mtrr[0].base,
-				         dev_priv->mtrr[0].size, DRM_MTRR_WC);
-			dev_priv->mtrr[1].base = fb_base + 0x02000000;
-			dev_priv->mtrr[1].size = 0x02000000;
-			dev_priv->mtrr[1].handle =
-			    drm_mtrr_add(dev_priv->mtrr[1].base,
-					 dev_priv->mtrr[1].size, DRM_MTRR_WC);
-			dev_priv->mtrr[2].base = fb_base + 0x04000000;
-			dev_priv->mtrr[2].size = 0x04000000;
-			dev_priv->mtrr[2].handle =
-			    drm_mtrr_add(dev_priv->mtrr[2].base,
-					 dev_priv->mtrr[2].size, DRM_MTRR_WC);
-		} else {
-			DRM_ERROR("strange pci_resource_len %08lx\n",
-				  drm_get_resource_len(dev, 0));
-		}
-	} else if (dev_priv->chipset != S3_SUPERSAVAGE &&
-		   dev_priv->chipset != S3_SAVAGE2000) {
-		mmio_base = drm_get_resource_start(dev, 0);
-		fb_rsrc = 1;
-		fb_base = drm_get_resource_start(dev, 1);
-		fb_size = SAVAGE_FB_SIZE_S4;
-		aper_rsrc = 1;
-		aperture_base = fb_base + SAVAGE_APERTURE_OFFSET;
-		/* this should always be true */
-		if (drm_get_resource_len(dev, 1) == 0x08000000) {
-			/* Can use one MTRR to cover both fb and
-			 * aperture. */
-			dev_priv->mtrr[0].base = fb_base;
-			dev_priv->mtrr[0].size = 0x08000000;
-			dev_priv->mtrr[0].handle =
-			    drm_mtrr_add(dev_priv->mtrr[0].base,
-					 dev_priv->mtrr[0].size, DRM_MTRR_WC);
-		} else {
-			DRM_ERROR("strange pci_resource_len %08lx\n",
-				  drm_get_resource_len(dev, 1));
-		}
-	} else {
-		mmio_base = drm_get_resource_start(dev, 0);
-		fb_rsrc = 1;
-		fb_base = drm_get_resource_start(dev, 1);
-		fb_size = drm_get_resource_len(dev, 1);
-		aper_rsrc = 2;
-		aperture_base = drm_get_resource_start(dev, 2);
-		/* Automatic MTRR setup will do the right thing. */
-	}
-
-	ret = drm_addmap(dev, mmio_base, SAVAGE_MMIO_SIZE, _DRM_REGISTERS,
-			 _DRM_READ_ONLY, &dev_priv->mmio);
-	if (ret)
-		return ret;
-
-	ret = drm_addmap(dev, fb_base, fb_size, _DRM_FRAME_BUFFER,
-			 _DRM_WRITE_COMBINING, &dev_priv->fb);
-	if (ret)
-		return ret;
-
-	ret = drm_addmap(dev, aperture_base, SAVAGE_APERTURE_SIZE,
-			 _DRM_FRAME_BUFFER, _DRM_WRITE_COMBINING,
-			 &dev_priv->aperture);
-	if (ret)
-		return ret;
-
-	return ret;
-}
-
-/*
- * Delete MTRRs and free device-private data.
- */
-void savage_driver_lastclose(struct drm_device *dev)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	int i;
-
-	for (i = 0; i < 3; ++i)
-		if (dev_priv->mtrr[i].handle >= 0)
-			drm_mtrr_del(dev_priv->mtrr[i].handle,
-				 dev_priv->mtrr[i].base,
-				 dev_priv->mtrr[i].size, DRM_MTRR_WC);
-}
-
-int savage_driver_unload(struct drm_device *dev)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-
-	drm_free(dev_priv, sizeof(drm_savage_private_t), DRM_MEM_DRIVER);
-
-	return 0;
-}
-
-static int savage_do_init_bci(struct drm_device * dev, drm_savage_init_t * init)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-
-	if (init->fb_bpp != 16 && init->fb_bpp != 32) {
-		DRM_ERROR("invalid frame buffer bpp %d!\n", init->fb_bpp);
-		return -EINVAL;
-	}
-	if (init->depth_bpp != 16 && init->depth_bpp != 32) {
-		DRM_ERROR("invalid depth buffer bpp %d!\n", init->fb_bpp);
-		return -EINVAL;
-	}
-	if (init->dma_type != SAVAGE_DMA_AGP &&
-	    init->dma_type != SAVAGE_DMA_PCI) {
-		DRM_ERROR("invalid dma memory type %d!\n", init->dma_type);
-		return -EINVAL;
-	}
-
-	dev_priv->cob_size = init->cob_size;
-	dev_priv->bci_threshold_lo = init->bci_threshold_lo;
-	dev_priv->bci_threshold_hi = init->bci_threshold_hi;
-	dev_priv->dma_type = init->dma_type;
-
-	dev_priv->fb_bpp = init->fb_bpp;
-	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;
-	dev_priv->depth_bpp = init->depth_bpp;
-	dev_priv->depth_offset = init->depth_offset;
-	dev_priv->depth_pitch = init->depth_pitch;
-
-	dev_priv->texture_offset = init->texture_offset;
-	dev_priv->texture_size = init->texture_size;
-
-	dev_priv->sarea = drm_getsarea(dev);
-	if (!dev_priv->sarea) {
-		DRM_ERROR("could not find sarea!\n");
-		savage_do_cleanup_bci(dev);
-		return -EINVAL;
-	}
-	if (init->status_offset != 0) {
-		dev_priv->status = drm_core_findmap(dev, init->status_offset);
-		if (!dev_priv->status) {
-			DRM_ERROR("could not find shadow status region!\n");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-	} else {
-		dev_priv->status = NULL;
-	}
-	if (dev_priv->dma_type == SAVAGE_DMA_AGP && init->buffers_offset) {
-		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");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-		drm_core_ioremap(dev->agp_buffer_map, dev);
-		if (!dev->agp_buffer_map) {
-			DRM_ERROR("failed to ioremap DMA buffer region!\n");
-			savage_do_cleanup_bci(dev);
-			return -ENOMEM;
-		}
-	}
-	if (init->agp_textures_offset) {
-		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");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-	} else {
-		dev_priv->agp_textures = NULL;
-	}
-
-	if (init->cmd_dma_offset) {
-		if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
-			DRM_ERROR("command DMA not supported on "
-				  "Savage3D/MX/IX.\n");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-		if (dev->dma && dev->dma->buflist) {
-			DRM_ERROR("command and vertex DMA not supported "
-				  "at the same time.\n");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-		dev_priv->cmd_dma = drm_core_findmap(dev, init->cmd_dma_offset);
-		if (!dev_priv->cmd_dma) {
-			DRM_ERROR("could not find command DMA region!\n");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-		if (dev_priv->dma_type == SAVAGE_DMA_AGP) {
-			if (dev_priv->cmd_dma->type != _DRM_AGP) {
-				DRM_ERROR("AGP command DMA region is not a "
-					  "_DRM_AGP map!\n");
-				savage_do_cleanup_bci(dev);
-				return -EINVAL;
-			}
-			drm_core_ioremap(dev_priv->cmd_dma, dev);
-			if (!dev_priv->cmd_dma->handle) {
-				DRM_ERROR("failed to ioremap command "
-					  "DMA region!\n");
-				savage_do_cleanup_bci(dev);
-				return -ENOMEM;
-			}
-		} else if (dev_priv->cmd_dma->type != _DRM_CONSISTENT) {
-			DRM_ERROR("PCI command DMA region is not a "
-				  "_DRM_CONSISTENT map!\n");
-			savage_do_cleanup_bci(dev);
-			return -EINVAL;
-		}
-	} else {
-		dev_priv->cmd_dma = NULL;
-	}
-
-	dev_priv->dma_flush = savage_dma_flush;
-	if (!dev_priv->cmd_dma) {
-		DRM_DEBUG("falling back to faked command DMA.\n");
-		dev_priv->fake_dma.offset = 0;
-		dev_priv->fake_dma.size = SAVAGE_FAKE_DMA_SIZE;
-		dev_priv->fake_dma.type = _DRM_SHM;
-		dev_priv->fake_dma.handle = drm_alloc(SAVAGE_FAKE_DMA_SIZE,
-						      DRM_MEM_DRIVER);
-		if (!dev_priv->fake_dma.handle) {
-			DRM_ERROR("could not allocate faked DMA buffer!\n");
-			savage_do_cleanup_bci(dev);
-			return -ENOMEM;
-		}
-		dev_priv->cmd_dma = &dev_priv->fake_dma;
-		dev_priv->dma_flush = savage_fake_dma_flush;
-	}
-
-	dev_priv->sarea_priv =
-	    (drm_savage_sarea_t *) ((uint8_t *) dev_priv->sarea->handle +
-				    init->sarea_priv_offset);
-
-	/* setup bitmap descriptors */
-	{
-		unsigned int color_tile_format;
-		unsigned int depth_tile_format;
-		unsigned int front_stride, back_stride, depth_stride;
-		if (dev_priv->chipset <= S3_SAVAGE4) {
-			color_tile_format = dev_priv->fb_bpp == 16 ?
-			    SAVAGE_BD_TILE_16BPP : SAVAGE_BD_TILE_32BPP;
-			depth_tile_format = dev_priv->depth_bpp == 16 ?
-			    SAVAGE_BD_TILE_16BPP : SAVAGE_BD_TILE_32BPP;
-		} else {
-			color_tile_format = SAVAGE_BD_TILE_DEST;
-			depth_tile_format = SAVAGE_BD_TILE_DEST;
-		}
-		front_stride = dev_priv->front_pitch / (dev_priv->fb_bpp / 8);
-		back_stride = dev_priv->back_pitch / (dev_priv->fb_bpp / 8);
-		depth_stride =
-		    dev_priv->depth_pitch / (dev_priv->depth_bpp / 8);
-
-		dev_priv->front_bd = front_stride | SAVAGE_BD_BW_DISABLE |
-		    (dev_priv->fb_bpp << SAVAGE_BD_BPP_SHIFT) |
-		    (color_tile_format << SAVAGE_BD_TILE_SHIFT);
-
-		dev_priv->back_bd = back_stride | SAVAGE_BD_BW_DISABLE |
-		    (dev_priv->fb_bpp << SAVAGE_BD_BPP_SHIFT) |
-		    (color_tile_format << SAVAGE_BD_TILE_SHIFT);
-
-		dev_priv->depth_bd = depth_stride | SAVAGE_BD_BW_DISABLE |
-		    (dev_priv->depth_bpp << SAVAGE_BD_BPP_SHIFT) |
-		    (depth_tile_format << SAVAGE_BD_TILE_SHIFT);
-	}
-
-	/* setup status and bci ptr */
-	dev_priv->event_counter = 0;
-	dev_priv->event_wrap = 0;
-	dev_priv->bci_ptr = (volatile uint32_t *)
-	    ((uint8_t *) dev_priv->mmio->handle + SAVAGE_BCI_OFFSET);
-	if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
-		dev_priv->status_used_mask = SAVAGE_FIFO_USED_MASK_S3D;
-	} else {
-		dev_priv->status_used_mask = SAVAGE_FIFO_USED_MASK_S4;
-	}
-	if (dev_priv->status != NULL) {
-		dev_priv->status_ptr =
-		    (volatile uint32_t *)dev_priv->status->handle;
-		dev_priv->wait_fifo = savage_bci_wait_fifo_shadow;
-		dev_priv->wait_evnt = savage_bci_wait_event_shadow;
-		dev_priv->status_ptr[1023] = dev_priv->event_counter;
-	} else {
-		dev_priv->status_ptr = NULL;
-		if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) {
-			dev_priv->wait_fifo = savage_bci_wait_fifo_s3d;
-		} else {
-			dev_priv->wait_fifo = savage_bci_wait_fifo_s4;
-		}
-		dev_priv->wait_evnt = savage_bci_wait_event_reg;
-	}
-
-	/* cliprect functions */
-	if (S3_SAVAGE3D_SERIES(dev_priv->chipset))
-		dev_priv->emit_clip_rect = savage_emit_clip_rect_s3d;
-	else
-		dev_priv->emit_clip_rect = savage_emit_clip_rect_s4;
-
-	if (savage_freelist_init(dev) < 0) {
-		DRM_ERROR("could not initialize freelist\n");
-		savage_do_cleanup_bci(dev);
-		return -ENOMEM;
-	}
-
-	if (savage_dma_init(dev_priv) < 0) {
-		DRM_ERROR("could not initialize command DMA\n");
-		savage_do_cleanup_bci(dev);
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static int savage_do_cleanup_bci(struct drm_device * dev)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-
-	if (dev_priv->cmd_dma == &dev_priv->fake_dma) {
-		if (dev_priv->fake_dma.handle)
-			drm_free(dev_priv->fake_dma.handle,
-				 SAVAGE_FAKE_DMA_SIZE, DRM_MEM_DRIVER);
-	} else if (dev_priv->cmd_dma && dev_priv->cmd_dma->handle &&
-		   dev_priv->cmd_dma->type == _DRM_AGP &&
-		   dev_priv->dma_type == SAVAGE_DMA_AGP)
-		drm_core_ioremapfree(dev_priv->cmd_dma, dev);
-
-	if (dev_priv->dma_type == SAVAGE_DMA_AGP &&
-	    dev->agp_buffer_map && dev->agp_buffer_map->handle) {
-		drm_core_ioremapfree(dev->agp_buffer_map, dev);
-		/* make sure the next instance (which may be running
-		 * in PCI mode) doesn't try to use an old
-		 * agp_buffer_map. */
-		dev->agp_buffer_map = NULL;
-	}
-
-	if (dev_priv->dma_pages)
-		drm_free(dev_priv->dma_pages,
-			 sizeof(drm_savage_dma_page_t) * dev_priv->nr_dma_pages,
-			 DRM_MEM_DRIVER);
-
-	return 0;
-}
-
-static int savage_bci_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	drm_savage_init_t *init = data;
-
-	LOCK_TEST_WITH_RETURN(dev, file_priv);
-
-	switch (init->func) {
-	case SAVAGE_INIT_BCI:
-		return savage_do_init_bci(dev, init);
-	case SAVAGE_CLEANUP_BCI:
-		return savage_do_cleanup_bci(dev);
-	}
-
-	return -EINVAL;
-}
-
-static int savage_bci_event_emit(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	drm_savage_event_emit_t *event = data;
-
-	DRM_DEBUG("\n");
-
-	LOCK_TEST_WITH_RETURN(dev, file_priv);
-
-	event->count = savage_bci_emit_event(dev_priv, event->flags);
-	event->count |= dev_priv->event_wrap << 16;
-
-	return 0;
-}
-
-static int savage_bci_event_wait(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	drm_savage_event_wait_t *event = data;
-	unsigned int event_e, hw_e;
-	unsigned int event_w, hw_w;
-
-	DRM_DEBUG("\n");
-
-	UPDATE_EVENT_COUNTER();
-	if (dev_priv->status_ptr)
-		hw_e = dev_priv->status_ptr[1] & 0xffff;
-	else
-		hw_e = SAVAGE_READ(SAVAGE_STATUS_WORD1) & 0xffff;
-	hw_w = dev_priv->event_wrap;
-	if (hw_e > dev_priv->event_counter)
-		hw_w--;		/* hardware hasn't passed the last wrap yet */
-
-	event_e = event->count & 0xffff;
-	event_w = event->count >> 16;
-
-	/* Don't need to wait if
-	 * - event counter wrapped since the event was emitted or
-	 * - the hardware has advanced up to or over the event to wait for.
-	 */
-	if (event_w < hw_w || (event_w == hw_w && event_e <= hw_e))
-		return 0;
-	else
-		return dev_priv->wait_evnt(dev_priv, event_e);
-}
-
-/*
- * DMA buffer management
- */
-
-static int savage_bci_get_buffers(struct drm_device *dev,
-				  struct drm_file *file_priv,
-				  struct drm_dma *d)
-{
-	struct drm_buf *buf;
-	int i;
-
-	for (i = d->granted_count; i < d->request_count; i++) {
-		buf = savage_freelist_get(dev);
-		if (!buf)
-			return -EAGAIN;
-
-		buf->file_priv = file_priv;
-
-		if (DRM_COPY_TO_USER(&d->request_indices[i],
-				     &buf->idx, sizeof(buf->idx)))
-			return -EFAULT;
-		if (DRM_COPY_TO_USER(&d->request_sizes[i],
-				     &buf->total, sizeof(buf->total)))
-			return -EFAULT;
-
-		d->granted_count++;
-	}
-	return 0;
-}
-
-int savage_bci_buffers(struct drm_device *dev, void *data, struct drm_file *file_priv)
-{
-	struct drm_device_dma *dma = dev->dma;
-	struct drm_dma *d = data;
-	int ret = 0;
-
-	LOCK_TEST_WITH_RETURN(dev, file_priv);
-
-	/* Please don't send us buffers.
-	 */
-	if (d->send_count != 0) {
-		DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
-			  DRM_CURRENTPID, d->send_count);
-		return -EINVAL;
-	}
-
-	/* We'll send you buffers.
-	 */
-	if (d->request_count < 0 || d->request_count > dma->buf_count) {
-		DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
-			  DRM_CURRENTPID, d->request_count, dma->buf_count);
-		return -EINVAL;
-	}
-
-	d->granted_count = 0;
-
-	if (d->request_count) {
-		ret = savage_bci_get_buffers(dev, file_priv, d);
-	}
-
-	return ret;
-}
-
-void savage_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv)
-{
-	struct drm_device_dma *dma = dev->dma;
-	drm_savage_private_t *dev_priv = dev->dev_private;
-	int i;
-
-	if (!dma)
-		return;
-	if (!dev_priv)
-		return;
-	if (!dma->buflist)
-		return;
-
-	/*i830_flush_queue(dev); */
-
-	for (i = 0; i < dma->buf_count; i++) {
-		struct drm_buf *buf = dma->buflist[i];
-		drm_savage_buf_priv_t *buf_priv = buf->dev_private;
-
-		if (buf->file_priv == file_priv && buf_priv &&
-		    buf_priv->next == NULL && buf_priv->prev == NULL) {
-			uint16_t event;
-			DRM_DEBUG("reclaimed from client\n");
-			event = savage_bci_emit_event(dev_priv, SAVAGE_WAIT_3D);
-			SET_AGE(&buf_priv->age, event, dev_priv->event_wrap);
-			savage_freelist_put(dev, buf);
-		}
-	}
-
-	drm_core_reclaim_buffers(dev, file_priv);
-}
-
-struct drm_ioctl_desc savage_ioctls[] = {
-	DRM_IOCTL_DEF(DRM_SAVAGE_BCI_INIT, savage_bci_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-	DRM_IOCTL_DEF(DRM_SAVAGE_BCI_CMDBUF, savage_bci_cmdbuf, DRM_AUTH),
-	DRM_IOCTL_DEF(DRM_SAVAGE_BCI_EVENT_EMIT, savage_bci_event_emit, DRM_AUTH),
-	DRM_IOCTL_DEF(DRM_SAVAGE_BCI_EVENT_WAIT, savage_bci_event_wait, DRM_AUTH),
-};
-
-int savage_max_ioctl = DRM_ARRAY_SIZE(savage_ioctls);