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mesa-drm/linux-core/i810_dma.c
Leif Delgass f2a0c5438d Ensure driver has been initialized (dev_private != NULL) before installing 
irq handler in DRM(irq_install). Modify all drivers to ensure irq
    handler is removed before cleanup and cleanup is called at takedown.
    Remove unused buffer private struct fields in i810, i830. Check for
    lock on init/cleanup in all drivers except i810/i830. The current DDX
    for i810 and i830 doesn't hold the lock on kernel init (FIXME?).
2003-04-26 22:28:56 +00:00

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/* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
* Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* 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: Rickard E. (Rik) Faith <faith@valinux.com>
* Jeff Hartmann <jhartmann@valinux.com>
* Keith Whitwell <keith@tungstengraphics.com>
*
*/
#define __NO_VERSION__
#include "i810.h"
#include "drmP.h"
#include "drm.h"
#include "i810_drm.h"
#include "i810_drv.h"
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
#include <linux/pagemap.h>
#ifdef DO_MUNMAP_4_ARGS
#define DO_MUNMAP(m, a, l) do_munmap(m, a, l, 1)
#else
#define DO_MUNMAP(m, a, l) do_munmap(m, a, l)
#endif
#define I810_BUF_FREE 2
#define I810_BUF_CLIENT 1
#define I810_BUF_HARDWARE 0
#define I810_BUF_UNMAPPED 0
#define I810_BUF_MAPPED 1
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,2)
#define down_write down
#define up_write up
#endif
static inline void i810_print_status_page(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = dev->dev_private;
u32 *temp = dev_priv->hw_status_page;
int i;
DRM_DEBUG( "hw_status: Interrupt Status : %x\n", temp[0]);
DRM_DEBUG( "hw_status: LpRing Head ptr : %x\n", temp[1]);
DRM_DEBUG( "hw_status: IRing Head ptr : %x\n", temp[2]);
DRM_DEBUG( "hw_status: Reserved : %x\n", temp[3]);
DRM_DEBUG( "hw_status: Last Render: %x\n", temp[4]);
DRM_DEBUG( "hw_status: Driver Counter : %d\n", temp[5]);
for(i = 6; i < dma->buf_count + 6; i++) {
DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
}
}
static drm_buf_t *i810_freelist_get(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
int i;
int used;
/* Linear search might not be the best solution */
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
I810_BUF_CLIENT);
if(used == I810_BUF_FREE) {
return buf;
}
}
return NULL;
}
/* This should only be called if the buffer is not sent to the hardware
* yet, the hardware updates in use for us once its on the ring buffer.
*/
static int i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int used;
/* In use is already a pointer */
used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
if(used != I810_BUF_CLIENT) {
DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
return -EINVAL;
}
return 0;
}
static struct file_operations i810_buffer_fops = {
.open = DRM(open),
.flush = DRM(flush),
.release = DRM(release),
.ioctl = DRM(ioctl),
.mmap = i810_mmap_buffers,
.fasync = DRM(fasync),
};
int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev;
drm_i810_private_t *dev_priv;
drm_buf_t *buf;
drm_i810_buf_priv_t *buf_priv;
lock_kernel();
dev = priv->dev;
dev_priv = dev->dev_private;
buf = dev_priv->mmap_buffer;
buf_priv = buf->dev_private;
vma->vm_flags |= (VM_IO | VM_DONTCOPY);
vma->vm_file = filp;
buf_priv->currently_mapped = I810_BUF_MAPPED;
unlock_kernel();
if (remap_page_range(DRM_RPR_ARG(vma) vma->vm_start,
VM_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot)) return -EAGAIN;
return 0;
}
static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_private_t *dev_priv = dev->dev_private;
struct file_operations *old_fops;
int retcode = 0;
if(buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL;
down_write( &current->mm->mmap_sem );
old_fops = filp->f_op;
filp->f_op = &i810_buffer_fops;
dev_priv->mmap_buffer = buf;
buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
PROT_READ|PROT_WRITE,
MAP_SHARED,
buf->bus_address);
dev_priv->mmap_buffer = NULL;
filp->f_op = old_fops;
if ((unsigned long)buf_priv->virtual > -1024UL) {
/* Real error */
DRM_ERROR("mmap error\n");
retcode = (signed int)buf_priv->virtual;
buf_priv->virtual = 0;
}
up_write( &current->mm->mmap_sem );
return retcode;
}
static int i810_unmap_buffer(drm_buf_t *buf)
{
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
if(buf_priv->currently_mapped != I810_BUF_MAPPED)
return -EINVAL;
down_write(&current->mm->mmap_sem);
retcode = DO_MUNMAP(current->mm,
(unsigned long)buf_priv->virtual,
(size_t) buf->total);
up_write(&current->mm->mmap_sem);
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
buf_priv->virtual = 0;
return retcode;
}
static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
struct file *filp)
{
drm_buf_t *buf;
drm_i810_buf_priv_t *buf_priv;
int retcode = 0;
buf = i810_freelist_get(dev);
if (!buf) {
retcode = -ENOMEM;
DRM_DEBUG("retcode=%d\n", retcode);
return retcode;
}
retcode = i810_map_buffer(buf, filp);
if(retcode) {
i810_freelist_put(dev, buf);
DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
return retcode;
}
buf->filp = filp;
buf_priv = buf->dev_private;
d->granted = 1;
d->request_idx = buf->idx;
d->request_size = buf->total;
d->virtual = buf_priv->virtual;
return retcode;
}
int i810_dma_cleanup(drm_device_t *dev)
{
drm_device_dma_t *dma = dev->dma;
#if _HAVE_DMA_IRQ
/* 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) DRM(irq_uninstall)(dev);
#endif
if (dev->dev_private) {
int i;
drm_i810_private_t *dev_priv =
(drm_i810_private_t *) dev->dev_private;
if(dev_priv->ring.virtual_start) {
DRM(ioremapfree)((void *) dev_priv->ring.virtual_start,
dev_priv->ring.Size);
}
if (dev_priv->hw_status_page) {
pci_free_consistent(dev->pdev, PAGE_SIZE,
dev_priv->hw_status_page,
dev_priv->dma_status_page);
/* Need to rewrite hardware status page */
I810_WRITE(0x02080, 0x1ffff000);
}
DRM(free)(dev->dev_private, sizeof(drm_i810_private_t),
DRM_MEM_DRIVER);
dev->dev_private = NULL;
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
if ( buf_priv->kernel_virtual && buf->total )
DRM(ioremapfree)(buf_priv->kernel_virtual, buf->total);
}
}
return 0;
}
static int i810_wait_ring(drm_device_t *dev, int n)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
int iters = 0;
unsigned long end;
unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
end = jiffies + (HZ*3);
while (ring->space < n) {
ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
if (ring->head != last_head)
end = jiffies + (HZ*3);
iters++;
if(time_before(end, jiffies)) {
DRM_ERROR("space: %d wanted %d\n", ring->space, n);
DRM_ERROR("lockup\n");
goto out_wait_ring;
}
udelay(1);
}
out_wait_ring:
return iters;
}
static void i810_kernel_lost_context(drm_device_t *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->tail = I810_READ(LP_RING + RING_TAIL);
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
}
static int i810_freelist_init(drm_device_t *dev, drm_i810_private_t *dev_priv)
{
drm_device_dma_t *dma = dev->dma;
int my_idx = 24;
u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
int i;
if(dma->buf_count > 1019) {
/* Not enough space in the status page for the freelist */
return -EINVAL;
}
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
buf_priv->in_use = hw_status++;
buf_priv->my_use_idx = my_idx;
my_idx += 4;
*buf_priv->in_use = I810_BUF_FREE;
buf_priv->kernel_virtual = DRM(ioremap)(buf->bus_address,
buf->total);
}
return 0;
}
static int i810_dma_initialize(drm_device_t *dev,
drm_i810_private_t *dev_priv,
drm_i810_init_t *init)
{
struct list_head *list;
memset(dev_priv, 0, sizeof(drm_i810_private_t));
list_for_each(list, &dev->maplist->head) {
drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head);
if( r_list->map &&
r_list->map->type == _DRM_SHM &&
r_list->map->flags & _DRM_CONTAINS_LOCK ) {
dev_priv->sarea_map = r_list->map;
break;
}
}
if(!dev_priv->sarea_map) {
dev->dev_private = (void *)dev_priv;
i810_dma_cleanup(dev);
DRM_ERROR("can not find sarea!\n");
return -EINVAL;
}
DRM_FIND_MAP( dev_priv->mmio_map, init->mmio_offset );
if(!dev_priv->mmio_map) {
dev->dev_private = (void *)dev_priv;
i810_dma_cleanup(dev);
DRM_ERROR("can not find mmio map!\n");
return -EINVAL;
}
DRM_FIND_MAP( dev_priv->buffer_map, init->buffers_offset );
if(!dev_priv->buffer_map) {
dev->dev_private = (void *)dev_priv;
i810_dma_cleanup(dev);
DRM_ERROR("can not find dma buffer map!\n");
return -EINVAL;
}
dev_priv->sarea_priv = (drm_i810_sarea_t *)
((u8 *)dev_priv->sarea_map->handle +
init->sarea_priv_offset);
dev_priv->ring.Start = init->ring_start;
dev_priv->ring.End = init->ring_end;
dev_priv->ring.Size = init->ring_size;
dev_priv->ring.virtual_start = DRM(ioremap)(dev->agp->base +
init->ring_start,
init->ring_size);
if (dev_priv->ring.virtual_start == NULL) {
dev->dev_private = (void *) dev_priv;
i810_dma_cleanup(dev);
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
return -ENOMEM;
}
dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
dev_priv->w = init->w;
dev_priv->h = init->h;
dev_priv->pitch = init->pitch;
dev_priv->back_offset = init->back_offset;
dev_priv->depth_offset = init->depth_offset;
dev_priv->overlay_offset = init->overlay_offset;
dev_priv->overlay_physical = init->overlay_physical;
dev_priv->front_di1 = init->front_offset | init->pitch_bits;
dev_priv->back_di1 = init->back_offset | init->pitch_bits;
dev_priv->zi1 = init->depth_offset | init->pitch_bits;
/* Program Hardware Status Page */
dev_priv->hw_status_page =
pci_alloc_consistent(dev->pdev, PAGE_SIZE,
&dev_priv->dma_status_page);
if (!dev_priv->hw_status_page) {
dev->dev_private = (void *)dev_priv;
i810_dma_cleanup(dev);
DRM_ERROR("Can not allocate hardware status page\n");
return -ENOMEM;
}
memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
I810_WRITE(0x02080, dev_priv->dma_status_page);
DRM_DEBUG("Enabled hardware status page\n");
/* Now we need to init our freelist */
if(i810_freelist_init(dev, dev_priv) != 0) {
dev->dev_private = (void *)dev_priv;
i810_dma_cleanup(dev);
DRM_ERROR("Not enough space in the status page for"
" the freelist\n");
return -ENOMEM;
}
dev->dev_private = (void *)dev_priv;
return 0;
}
int i810_dma_init(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv;
drm_i810_init_t init;
int retcode = 0;
if (copy_from_user(&init, (drm_i810_init_t *)arg, sizeof(init)))
return -EFAULT;
switch(init.func) {
case I810_INIT_DMA:
dev_priv = DRM(alloc)(sizeof(drm_i810_private_t),
DRM_MEM_DRIVER);
if(dev_priv == NULL) return -ENOMEM;
retcode = i810_dma_initialize(dev, dev_priv, &init);
break;
case I810_CLEANUP_DMA:
retcode = i810_dma_cleanup(dev);
break;
default:
retcode = -EINVAL;
break;
}
return retcode;
}
/* Most efficient way to verify state for the i810 is as it is
* emitted. Non-conformant state is silently dropped.
*/
static void i810EmitContextVerified( drm_device_t *dev,
unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
RING_LOCALS;
BEGIN_LP_RING( I810_CTX_SETUP_SIZE );
OUT_RING( GFX_OP_COLOR_FACTOR );
OUT_RING( code[I810_CTXREG_CF1] );
OUT_RING( GFX_OP_STIPPLE );
OUT_RING( code[I810_CTXREG_ST1] );
for ( i = 4 ; i < I810_CTX_SETUP_SIZE ; i++ ) {
if ((code[i] & (7<<29)) == (3<<29) &&
(code[i] & (0x1f<<24)) < (0x1d<<24))
{
OUT_RING( code[i] );
j++;
}
else printk("constext state dropped!!!\n");
}
if (j & 1)
OUT_RING( 0 );
ADVANCE_LP_RING();
}
static void i810EmitTexVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
int i, j = 0;
RING_LOCALS;
BEGIN_LP_RING( I810_TEX_SETUP_SIZE );
OUT_RING( GFX_OP_MAP_INFO );
OUT_RING( code[I810_TEXREG_MI1] );
OUT_RING( code[I810_TEXREG_MI2] );
OUT_RING( code[I810_TEXREG_MI3] );
for ( i = 4 ; i < I810_TEX_SETUP_SIZE ; i++ ) {
if ((code[i] & (7<<29)) == (3<<29) &&
(code[i] & (0x1f<<24)) < (0x1d<<24))
{
OUT_RING( code[i] );
j++;
}
else printk("texture state dropped!!!\n");
}
if (j & 1)
OUT_RING( 0 );
ADVANCE_LP_RING();
}
/* Need to do some additional checking when setting the dest buffer.
*/
static void i810EmitDestVerified( drm_device_t *dev,
volatile unsigned int *code )
{
drm_i810_private_t *dev_priv = dev->dev_private;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I810_DEST_SETUP_SIZE + 2 );
tmp = code[I810_DESTREG_DI1];
if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
OUT_RING( CMD_OP_DESTBUFFER_INFO );
OUT_RING( tmp );
}
else
printk("buffer state dropped\n");
/* invarient:
*/
OUT_RING( CMD_OP_Z_BUFFER_INFO );
OUT_RING( dev_priv->zi1 );
OUT_RING( GFX_OP_DESTBUFFER_VARS );
OUT_RING( code[I810_DESTREG_DV1] );
OUT_RING( GFX_OP_DRAWRECT_INFO );
OUT_RING( code[I810_DESTREG_DR1] );
OUT_RING( code[I810_DESTREG_DR2] );
OUT_RING( code[I810_DESTREG_DR3] );
OUT_RING( code[I810_DESTREG_DR4] );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
static void i810EmitState( drm_device_t *dev )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned int dirty = sarea_priv->dirty;
if (dirty & I810_UPLOAD_BUFFERS) {
i810EmitDestVerified( dev, sarea_priv->BufferState );
sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
}
if (dirty & I810_UPLOAD_CTX) {
i810EmitContextVerified( dev, sarea_priv->ContextState );
sarea_priv->dirty &= ~I810_UPLOAD_CTX;
}
if (dirty & I810_UPLOAD_TEX0) {
i810EmitTexVerified( dev, sarea_priv->TexState[0] );
sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
}
if (dirty & I810_UPLOAD_TEX1) {
i810EmitTexVerified( dev, sarea_priv->TexState[1] );
sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
}
}
/* need to verify
*/
static void i810_dma_dispatch_clear( drm_device_t *dev, int flags,
unsigned int clear_color,
unsigned int clear_zval )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
int pitch = dev_priv->pitch;
int cpp = 2;
int i;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
for (i = 0 ; i < nbox ; i++, pbox++) {
unsigned int x = pbox->x1;
unsigned int y = pbox->y1;
unsigned int width = (pbox->x2 - x) * cpp;
unsigned int height = pbox->y2 - y;
unsigned int start = y * pitch + x * cpp;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
if ( flags & I810_FRONT ) {
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( start );
OUT_RING( clear_color );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
if ( flags & I810_BACK ) {
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( dev_priv->back_offset + start );
OUT_RING( clear_color );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
if ( flags & I810_DEPTH ) {
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT |
BR00_OP_COLOR_BLT | 0x3 );
OUT_RING( BR13_SOLID_PATTERN | (0xF0 << 16) | pitch );
OUT_RING( (height << 16) | width );
OUT_RING( dev_priv->depth_offset + start );
OUT_RING( clear_zval );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
}
}
static void i810_dma_dispatch_swap( drm_device_t *dev )
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
int pitch = dev_priv->pitch;
int cpp = 2;
int ofs = dev_priv->back_offset;
int i;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
for (i = 0 ; i < nbox; i++, pbox++)
{
unsigned int w = pbox->x2 - pbox->x1;
unsigned int h = pbox->y2 - pbox->y1;
unsigned int dst = pbox->x1*cpp + pbox->y1*pitch;
unsigned int start = ofs + dst;
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > dev_priv->w ||
pbox->y2 > dev_priv->h)
continue;
BEGIN_LP_RING( 6 );
OUT_RING( BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4 );
OUT_RING( pitch | (0xCC << 16));
OUT_RING( (h << 16) | (w * cpp));
OUT_RING( dst );
OUT_RING( pitch );
OUT_RING( start );
ADVANCE_LP_RING();
}
}
static void i810_dma_dispatch_vertex(drm_device_t *dev,
drm_buf_t *buf,
int discard,
int used)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
drm_clip_rect_t *box = sarea_priv->boxes;
int nbox = sarea_priv->nbox;
unsigned long address = (unsigned long)buf->bus_address;
unsigned long start = address - dev->agp->base;
int i = 0;
RING_LOCALS;
i810_kernel_lost_context(dev);
if (nbox > I810_NR_SAREA_CLIPRECTS)
nbox = I810_NR_SAREA_CLIPRECTS;
if (used > 4*1024)
used = 0;
if (sarea_priv->dirty)
i810EmitState( dev );
if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE | prim |
((used/4)-2));
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
used += 4;
}
i810_unmap_buffer(buf);
}
if (used) {
do {
if (i < nbox) {
BEGIN_LP_RING(4);
OUT_RING( GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
SC_ENABLE );
OUT_RING( GFX_OP_SCISSOR_INFO );
OUT_RING( box[i].x1 | (box[i].y1<<16) );
OUT_RING( (box[i].x2-1) | ((box[i].y2-1)<<16) );
ADVANCE_LP_RING();
}
BEGIN_LP_RING(4);
OUT_RING( CMD_OP_BATCH_BUFFER );
OUT_RING( start | BB1_PROTECTED );
OUT_RING( start + used - 4 );
OUT_RING( 0 );
ADVANCE_LP_RING();
} while (++i < nbox);
}
if (discard) {
dev_priv->counter++;
(void) cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_HARDWARE);
BEGIN_LP_RING(8);
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( 20 );
OUT_RING( dev_priv->counter );
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( buf_priv->my_use_idx );
OUT_RING( I810_BUF_FREE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
}
void i810_dma_quiescent(drm_device_t *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
/* printk("%s\n", __FUNCTION__); */
i810_kernel_lost_context(dev);
BEGIN_LP_RING(4);
OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
OUT_RING( 0 );
ADVANCE_LP_RING();
i810_wait_ring( dev, dev_priv->ring.Size - 8 );
}
static int i810_flush_queue(drm_device_t *dev)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_device_dma_t *dma = dev->dma;
int i, ret = 0;
RING_LOCALS;
/* printk("%s\n", __FUNCTION__); */
i810_kernel_lost_context(dev);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
i810_wait_ring( dev, dev_priv->ring.Size - 8 );
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
I810_BUF_FREE);
if (used == I810_BUF_HARDWARE)
DRM_DEBUG("reclaimed from HARDWARE\n");
if (used == I810_BUF_CLIENT)
DRM_DEBUG("still on client\n");
}
return ret;
}
/* Must be called with the lock held */
void i810_reclaim_buffers(struct file *filp)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
int i;
if (!dma) return;
if (!dev->dev_private) return;
if (!dma->buflist) return;
i810_flush_queue(dev);
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
if (buf->filp == filp && buf_priv) {
int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_FREE);
if (used == I810_BUF_CLIENT)
DRM_DEBUG("reclaimed from client\n");
if(buf_priv->currently_mapped == I810_BUF_MAPPED)
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
}
}
}
int i810_flush_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_flush_ioctl called without lock held\n");
return -EINVAL;
}
i810_flush_queue(dev);
return 0;
}
int i810_dma_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
drm_i810_vertex_t vertex;
if (copy_from_user(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex)))
return -EFAULT;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_vertex called without lock held\n");
return -EINVAL;
}
if(vertex.idx < 0 || vertex.idx > dma->buf_count) return -EINVAL;
i810_dma_dispatch_vertex( dev,
dma->buflist[ vertex.idx ],
vertex.discard, vertex.used );
atomic_add(vertex.used, &dev->counts[_DRM_STAT_SECONDARY]);
atomic_inc(&dev->counts[_DRM_STAT_DMA]);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
return 0;
}
int i810_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_clear_t clear;
if (copy_from_user(&clear, (drm_i810_clear_t *)arg, sizeof(clear)))
return -EFAULT;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_clear_bufs called without lock held\n");
return -EINVAL;
}
/* GH: Someone's doing nasty things... */
if (!dev->dev_private) {
return -EINVAL;
}
i810_dma_dispatch_clear( dev, clear.flags,
clear.clear_color,
clear.clear_depth );
return 0;
}
int i810_swap_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_swap_buf called without lock held\n");
return -EINVAL;
}
i810_dma_dispatch_swap( dev );
return 0;
}
int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
sarea_priv->last_dispatch = (int) hw_status[5];
return 0;
}
int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
int retcode = 0;
drm_i810_dma_t d;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
if (copy_from_user(&d, (drm_i810_dma_t *)arg, sizeof(d)))
return -EFAULT;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma called without lock held\n");
return -EINVAL;
}
d.granted = 0;
retcode = i810_dma_get_buffer(dev, &d, filp);
if (copy_to_user((drm_dma_t *)arg, &d, sizeof(d)))
return -EFAULT;
sarea_priv->last_dispatch = (int) hw_status[5];
return retcode;
}
int i810_copybuf(struct inode *inode,
struct file *filp,
unsigned int cmd,
unsigned long arg)
{
/* Never copy - 2.4.x doesn't need it */
return 0;
}
int i810_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
/* Never copy - 2.4.x doesn't need it */
return 0;
}
static void i810_dma_dispatch_mc(drm_device_t *dev, drm_buf_t *buf, int used,
unsigned int last_render)
{
drm_i810_private_t *dev_priv = dev->dev_private;
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
unsigned long address = (unsigned long)buf->bus_address;
unsigned long start = address - dev->agp->base;
int u;
RING_LOCALS;
i810_kernel_lost_context(dev);
u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
I810_BUF_HARDWARE);
if(u != I810_BUF_CLIENT) {
DRM_DEBUG("MC found buffer that isn't mine!\n");
}
if (used > 4*1024)
used = 0;
sarea_priv->dirty = 0x7f;
DRM_DEBUG("dispatch mc addr 0x%lx, used 0x%x\n",
address, used);
dev_priv->counter++;
DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
DRM_DEBUG("i810_dma_dispatch_mc\n");
DRM_DEBUG("start : %lx\n", start);
DRM_DEBUG("used : %d\n", used);
DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
used += 4;
}
i810_unmap_buffer(buf);
}
BEGIN_LP_RING(4);
OUT_RING( CMD_OP_BATCH_BUFFER );
OUT_RING( start | BB1_PROTECTED );
OUT_RING( start + used - 4 );
OUT_RING( 0 );
ADVANCE_LP_RING();
BEGIN_LP_RING(8);
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( buf_priv->my_use_idx );
OUT_RING( I810_BUF_FREE );
OUT_RING( 0 );
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( 16 );
OUT_RING( last_render );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
int i810_dma_mc(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
u32 *hw_status = dev_priv->hw_status_page;
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
dev_priv->sarea_priv;
drm_i810_mc_t mc;
if (copy_from_user(&mc, (drm_i810_mc_t *)arg, sizeof(mc)))
return -EFAULT;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_dma_mc called without lock held\n");
return -EINVAL;
}
i810_dma_dispatch_mc(dev, dma->buflist[mc.idx], mc.used,
mc.last_render );
atomic_add(mc.used, &dev->counts[_DRM_STAT_SECONDARY]);
atomic_inc(&dev->counts[_DRM_STAT_DMA]);
sarea_priv->last_enqueue = dev_priv->counter-1;
sarea_priv->last_dispatch = (int) hw_status[5];
return 0;
}
int i810_rstatus(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
return (int)(((u32 *)(dev_priv->hw_status_page))[4]);
}
int i810_ov0_info(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
drm_i810_overlay_t data;
data.offset = dev_priv->overlay_offset;
data.physical = dev_priv->overlay_physical;
if (copy_to_user((drm_i810_overlay_t *)arg,&data,sizeof(data)))
return -EFAULT;
return 0;
}
int i810_fstatus(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_fstatus called without lock held\n");
return -EINVAL;
}
return I810_READ(0x30008);
}
int i810_ov0_flip(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i810_ov0_flip called without lock held\n");
return -EINVAL;
}
//Tell the overlay to update
I810_WRITE(0x30000,dev_priv->overlay_physical | 0x80000000);
return 0;
}
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