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- Fix various bugs in the DRI support for the i830 and i845G (Keith

Browse source 
Whitwell).
- Major rework of the 2D i830/i845G support, including:
- Improve VESA mode selection, and fix refresh rate selection.
- Don't duplicate functions provided in the vbe modules.
- Don't duplicate functions provided in the vgahw module.
- Rewrite memory allocation.
- Rewrite initialisation and save/restore state handling.
- Decouple the i810 support from i830 and later.
- Remove various unnecessary hacks and workarounds.
- Fix an 845G problem with the ring buffer not in pre-allocated memory.
- Fix screen blanking.
- Fix some HW cursor glitches, and turn HW cursor off at VT switch and
    exit.
- Don't attempt to use the i830's function 1 entity.
- Fix problems with option handling. (David Dawes).
- Add mode VBE-aware mode handling functions to the vbe module (David
    Dawes).
This commit is contained in:
David Dawes 2002-09-11 00:57:49 +00:00
parent 9797f0fd17
commit c4318a5c64
10 changed files with 338 additions and 622 deletions
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7
linux-core/drmP.h
View file

@ -53,6 +53,7 @@
#include <linux/sched.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
#include <linux/mm.h>
#include <linux/pagemap.h>
#if defined(__alpha__) || defined(__powerpc__)
#include <asm/pgtable.h> /* For pte_wrprotect */
#endif
@ -165,7 +166,7 @@
#define pte_unmap(pte)
#endif
#if LINUX_VERSION_CODE < 0x020413 /* KERNEL_VERSION(2,4,19) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19)
static inline struct page * vmalloc_to_page(void * vmalloc_addr)
{
unsigned long addr = (unsigned long) vmalloc_addr;
@ -190,7 +191,7 @@ static inline struct page * vmalloc_to_page(void * vmalloc_addr)
}
#endif
#if LINUX_VERSION_CODE < 0x020500
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#define DRM_RPR_ARG(vma)
#else
#define DRM_RPR_ARG(vma) vma,
@ -597,7 +598,7 @@ typedef struct drm_device {
#endif
struct pci_dev *pdev;
#ifdef __alpha__
#if LINUX_VERSION_CODE < 0x020403
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
struct pci_controler *hose;
#else
struct pci_controller *hose;

411
linux-core/i830_dma.c
View file

@ -26,8 +26,8 @@
*
* Authors: Rickard E. (Rik) Faith <faith@valinux.com>
* Jeff Hartmann <jhartmann@valinux.com>
* Keith Whitwell <keithw@valinux.com>
* Abraham vd Merwe <abraham@2d3d.co.za>
* Keith Whitwell <keith@tungstengraphics.com>
* Abraham vd Merwe <abraham@2d3d.co.za>
*
*/
@ -40,9 +40,10 @@
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
/* in case we don't have a 2.3.99-pre6 kernel or later: */
#ifndef VM_DONTCOPY
#define VM_DONTCOPY 0
#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 I830_BUF_FREE 2
@ -54,26 +55,24 @@
#define RING_LOCALS unsigned int outring, ringmask; volatile char *virt;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,2)
#define down_write down
#define up_write up
#endif
#define DO_IDLE_WORKAROUND() \
do { \
int _head; \
int _tail; \
do { \
_head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR; \
_tail = I830_READ(LP_RING + RING_TAIL) & TAIL_ADDR; \
udelay(10); \
} while(_head != _tail); \
} while(0)
#ifndef LockPage
#define LockPage(page) set_bit(PG_locked, &(page)->flags)
#endif
#ifndef UnlockPage
#define UnlockPage(page) unlock_page(page)
#endif
#define I830_SYNC_WORKAROUND 0
#define I830_VERBOSE 0
#define BEGIN_LP_RING(n) do { \
if (I830_VERBOSE) \
DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n", \
printk("BEGIN_LP_RING(%d) in %s\n", \
n, __FUNCTION__); \
if (I830_SYNC_WORKAROUND) \
DO_IDLE_WORKAROUND(); \
if (dev_priv->ring.space < n*4) \
i830_wait_ring(dev, n*4); \
dev_priv->ring.space -= n*4; \
@ -83,13 +82,13 @@ do { \
} while (0)
#define ADVANCE_LP_RING() do { \
if (I830_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING\n"); \
if (I830_VERBOSE) printk("ADVANCE_LP_RING %x\n", outring); \
dev_priv->ring.tail = outring; \
I830_WRITE(LP_RING + RING_TAIL, outring); \
} while(0)
#define OUT_RING(n) do { \
if (I830_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
if (I830_VERBOSE) printk(" OUT_RING %x\n", (int)(n)); \
*(volatile unsigned int *)(virt + outring) = n; \
outring += 4; \
outring &= ringmask; \
@ -201,36 +200,24 @@ static int i830_map_buffer(drm_buf_t *buf, struct file *filp)
if(buf_priv->currently_mapped == I830_BUF_MAPPED) return -EINVAL;
if(VM_DONTCOPY != 0) {
#if LINUX_VERSION_CODE <= 0x020402
down( &current->mm->mmap_sem );
#else
down_write( &current->mm->mmap_sem );
#endif
old_fops = filp->f_op;
filp->f_op = &i830_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_DEBUG("mmap error\n");
retcode = (signed int)buf_priv->virtual;
buf_priv->virtual = 0;
}
#if LINUX_VERSION_CODE <= 0x020402
up( &current->mm->mmap_sem );
#else
up_write( &current->mm->mmap_sem );
#endif
} else {
buf_priv->virtual = buf_priv->kernel_virtual;
buf_priv->currently_mapped = I830_BUF_MAPPED;
down_write( &current->mm->mmap_sem );
old_fops = filp->f_op;
filp->f_op = &i830_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;
}
@ -239,25 +226,15 @@ static int i830_unmap_buffer(drm_buf_t *buf)
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
if(VM_DONTCOPY != 0) {
if(buf_priv->currently_mapped != I830_BUF_MAPPED)
return -EINVAL;
#if LINUX_VERSION_CODE <= 0x020402
down( &current->mm->mmap_sem );
#else
down_write( &current->mm->mmap_sem );
#endif
if(buf_priv->currently_mapped != I830_BUF_MAPPED)
return -EINVAL;
retcode = do_munmap(current->mm,
(unsigned long)buf_priv->virtual,
(size_t) buf->total);
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);
#if LINUX_VERSION_CODE <= 0x020402
up( &current->mm->mmap_sem );
#else
up_write( &current->mm->mmap_sem );
#endif
}
buf_priv->currently_mapped = I830_BUF_UNMAPPED;
buf_priv->virtual = 0;
@ -275,14 +252,14 @@ static int i830_dma_get_buffer(drm_device_t *dev, drm_i830_dma_t *d,
buf = i830_freelist_get(dev);
if (!buf) {
retcode = -ENOMEM;
DRM_DEBUG("retcode=%d\n", retcode);
DRM_ERROR("retcode=%d\n", retcode);
return retcode;
}
retcode = i830_map_buffer(buf, filp);
if(retcode) {
i830_freelist_put(dev, buf);
DRM_DEBUG("mapbuf failed, retcode %d\n", retcode);
DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
return retcode;
}
buf->pid = priv->pid;
@ -303,32 +280,17 @@ static unsigned long i830_alloc_page(drm_device_t *dev)
if(address == 0UL)
return 0;
#if LINUX_VERSION_CODE < 0x020409
atomic_inc(&virt_to_page(address)->count);
set_bit(PG_locked, &virt_to_page(address)->flags);
#else
get_page(virt_to_page(address));
#if LINUX_VERSION_CODE < 0x020500
LockPage(virt_to_page(address));
#else
SetPageLocked(virt_to_page(address));
#endif
#endif
return address;
}
static void i830_free_page(drm_device_t *dev, unsigned long page)
{
if (page) {
#if LINUX_VERSION_CODE < 0x020409
atomic_dec(&virt_to_page(page)->count);
clear_bit(PG_locked, &virt_to_page(page)->flags);
wake_up(&virt_to_page(page)->wait);
#else
struct page *p = virt_to_page(page);
put_page(p);
unlock_page(p);
#endif
UnlockPage(p);
free_page(page);
}
}
@ -384,7 +346,7 @@ static int i830_wait_ring(drm_device_t *dev, int n)
}
iters++;
if((signed)(end - jiffies) <= 0) {
if(time_before(end, jiffies)) {
DRM_ERROR("space: %d wanted %d\n", ring->space, n);
DRM_ERROR("lockup\n");
goto out_wait_ring;
@ -402,7 +364,7 @@ static void i830_kernel_lost_context(drm_device_t *dev)
drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
ring->head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->tail = I830_READ(LP_RING + RING_TAIL);
ring->tail = I830_READ(LP_RING + RING_TAIL) & TAIL_ADDR;
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
}
@ -478,9 +440,6 @@ static int i830_dma_initialize(drm_device_t *dev,
((u8 *)dev_priv->sarea_map->handle +
init->sarea_priv_offset);
atomic_set(&dev_priv->flush_done, 0);
init_waitqueue_head(&dev_priv->flush_queue);
dev_priv->ring.Start = init->ring_start;
dev_priv->ring.End = init->ring_end;
dev_priv->ring.Size = init->ring_size;
@ -504,11 +463,17 @@ static int i830_dma_initialize(drm_device_t *dev,
dev_priv->pitch = init->pitch;
dev_priv->back_offset = init->back_offset;
dev_priv->depth_offset = init->depth_offset;
dev_priv->front_offset = init->front_offset;
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;
DRM_DEBUG("front_di1 %x\n", dev_priv->front_di1);
DRM_DEBUG("back_offset %x\n", dev_priv->back_offset);
DRM_DEBUG("back_di1 %x\n", dev_priv->back_di1);
DRM_DEBUG("pitch_bits %x\n", init->pitch_bits);
dev_priv->cpp = init->cpp;
/* We are using seperate values as placeholders for mechanisms for
* private backbuffer/depthbuffer usage.
@ -574,38 +539,57 @@ int i830_dma_init(struct inode *inode, struct file *filp,
return retcode;
}
#define GFX_OP_STIPPLE ((0x3<<29)|(0x1d<<24)|(0x83<<16))
#define ST1_ENABLE (1<<16)
#define ST1_MASK (0xffff)
/* Most efficient way to verify state for the i830 is as it is
* emitted. Non-conformant state is silently dropped.
*
* Use 'volatile' & local var tmp to force the emitted values to be
* identical to the verified ones.
*/
static void i830EmitContextVerified( drm_device_t *dev,
volatile unsigned int *code )
static void i830EmitContextVerified( drm_device_t *dev,
unsigned int *code )
{
drm_i830_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I830_CTX_SETUP_SIZE );
for ( i = 0 ; i < I830_CTX_SETUP_SIZE ; i++ ) {
tmp = code[i];
BEGIN_LP_RING( I830_CTX_SETUP_SIZE + 2 );
#if 0
if ((tmp & (7<<29)) == (3<<29) &&
OUT_RING( GFX_OP_STIPPLE );
OUT_RING( 0 );
for ( i = 0 ; i < I830_CTXREG_BLENDCOLR0 ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == CMD_3D &&
(tmp & (0x1f<<24)) < (0x1d<<24)) {
OUT_RING( tmp );
j++;
} else {
printk("Skipping %d\n", i);
DRM_ERROR("Skipping %d\n", i);
}
#else
OUT_RING( tmp );
j++;
#endif
}
OUT_RING( STATE3D_CONST_BLEND_COLOR_CMD );
OUT_RING( code[I830_CTXREG_BLENDCOLR] );
j += 2;
for ( i = I830_CTXREG_VF ; i < I830_CTXREG_MCSB0 ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == CMD_3D &&
(tmp & (0x1f<<24)) < (0x1d<<24)) {
OUT_RING( tmp );
j++;
} else {
DRM_ERROR("Skipping %d\n", i);
}
}
OUT_RING( STATE3D_MAP_COORD_SETBIND_CMD );
OUT_RING( code[I830_CTXREG_MCSB1] );
j += 2;
if (j & 1)
OUT_RING( 0 );
@ -650,6 +634,9 @@ static void i830EmitTexBlendVerified( drm_device_t *dev,
unsigned int tmp;
RING_LOCALS;
if (!num)
return;
BEGIN_LP_RING( num );
for ( i = 0 ; i < num ; i++ ) {
@ -723,7 +710,7 @@ static void i830EmitDestVerified( drm_device_t *dev,
BUF_3D_PITCH(dev_priv->depth_pitch * dev_priv->cpp));
OUT_RING( dev_priv->zi1 );
} else {
DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
DRM_ERROR("bad di1 %x (allow %x or %x)\n",
tmp, dev_priv->front_di1, dev_priv->back_di1);
}
@ -745,7 +732,7 @@ static void i830EmitDestVerified( drm_device_t *dev,
if((tmp & ~0x3) == GFX_OP_SCISSOR_ENABLE) {
OUT_RING( tmp );
} else {
DRM_DEBUG("bad scissor enable\n");
DRM_ERROR("bad scissor enable\n");
OUT_RING( 0 );
}
@ -865,7 +852,7 @@ static void i830_dma_dispatch_clear( drm_device_t *dev, int flags,
OUT_RING( BR13 );
OUT_RING( (pbox->y1 << 16) | pbox->x1 );
OUT_RING( (pbox->y2 << 16) | pbox->x2 );
OUT_RING( 0 );
OUT_RING( dev_priv->front_offset );
OUT_RING( clear_color );
ADVANCE_LP_RING();
}
@ -953,7 +940,7 @@ static void i830_dma_dispatch_swap( drm_device_t *dev )
OUT_RING( (pbox->y2 << 16) |
pbox->x2 );
OUT_RING( 0 /* front ofs always zero */ );
OUT_RING( dev_priv->front_offset );
OUT_RING( (pbox->y1 << 16) |
pbox->x1 );
@ -993,7 +980,7 @@ static void i830_dma_dispatch_vertex(drm_device_t *dev,
}
}
if (used > 4*1024)
if (used > 4*1023)
used = 0;
if (sarea_priv->dirty)
@ -1010,12 +997,17 @@ static void i830_dma_dispatch_vertex(drm_device_t *dev,
DRM_DEBUG( "start + used - 4 : %ld\n", start + used - 4);
if (buf_priv->currently_mapped == I830_BUF_MAPPED) {
*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
u32 *vp = buf_priv->virtual;
vp[0] = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
vp[used/4] = MI_BATCH_BUFFER_END;
used += 4;
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
vp[used/4] = 0;
used += 4;
}
@ -1035,80 +1027,35 @@ static void i830_dma_dispatch_vertex(drm_device_t *dev,
ADVANCE_LP_RING();
}
BEGIN_LP_RING(4);
OUT_RING( MI_BATCH_BUFFER );
BEGIN_LP_RING(2);
OUT_RING( MI_BATCH_BUFFER_START | (2<<6) );
OUT_RING( start | MI_BATCH_NON_SECURE );
OUT_RING( start + used - 4 );
OUT_RING( 0 );
ADVANCE_LP_RING();
} while (++i < nbox);
}
BEGIN_LP_RING(10);
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( 20 );
OUT_RING( dev_priv->counter );
OUT_RING( 0 );
if (discard) {
dev_priv->counter++;
(void) cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
I830_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( I830_BUF_FREE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
/* Interrupts are only for flushing */
void i830_dma_service(int irq, void *device, struct pt_regs *regs)
{
drm_device_t *dev = (drm_device_t *)device;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
u16 temp;
temp = I830_READ16(I830REG_INT_IDENTITY_R);
temp = temp & ~(0x6000);
if(temp != 0) I830_WRITE16(I830REG_INT_IDENTITY_R,
temp); /* Clear all interrupts */
else
return;
queue_task(&dev->tq, &tq_immediate);
mark_bh(IMMEDIATE_BH);
}
void DRM(dma_immediate_bh)(void *device)
{
drm_device_t *dev = (drm_device_t *) device;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
atomic_set(&dev_priv->flush_done, 1);
wake_up_interruptible(&dev_priv->flush_queue);
}
static inline void i830_dma_emit_flush(drm_device_t *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
i830_kernel_lost_context(dev);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( GFX_OP_USER_INTERRUPT );
ADVANCE_LP_RING();
i830_wait_ring( dev, dev_priv->ring.Size - 8 );
atomic_set(&dev_priv->flush_done, 1);
wake_up_interruptible(&dev_priv->flush_queue);
}
static inline void i830_dma_quiescent_emit(drm_device_t *dev)
void i830_dma_quiescent(drm_device_t *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
@ -1119,79 +1066,27 @@ static inline void i830_dma_quiescent_emit(drm_device_t *dev)
OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
OUT_RING( GFX_OP_USER_INTERRUPT );
OUT_RING( 0 );
ADVANCE_LP_RING();
i830_wait_ring( dev, dev_priv->ring.Size - 8 );
atomic_set(&dev_priv->flush_done, 1);
wake_up_interruptible(&dev_priv->flush_queue);
}
void i830_dma_quiescent(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
unsigned long end;
if(dev_priv == NULL) {
return;
}
atomic_set(&dev_priv->flush_done, 0);
add_wait_queue(&dev_priv->flush_queue, &entry);
end = jiffies + (HZ*3);
for (;;) {
current->state = TASK_INTERRUPTIBLE;
i830_dma_quiescent_emit(dev);
if (atomic_read(&dev_priv->flush_done) == 1) break;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("lockup\n");
break;
}
schedule_timeout(HZ*3);
if (signal_pending(current)) {
break;
}
}
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
return;
}
static int i830_flush_queue(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
drm_i830_private_t *dev_priv = dev->dev_private;
drm_device_dma_t *dma = dev->dma;
unsigned long end;
int i, ret = 0;
int i, ret = 0;
RING_LOCALS;
i830_kernel_lost_context(dev);
if(dev_priv == NULL) {
return 0;
}
atomic_set(&dev_priv->flush_done, 0);
add_wait_queue(&dev_priv->flush_queue, &entry);
end = jiffies + (HZ*3);
for (;;) {
current->state = TASK_INTERRUPTIBLE;
i830_dma_emit_flush(dev);
if (atomic_read(&dev_priv->flush_done) == 1) break;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("lockup\n");
break;
}
schedule_timeout(HZ*3);
if (signal_pending(current)) {
ret = -EINTR; /* Can't restart */
break;
}
}
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
i830_wait_ring( dev, dev_priv->ring.Size - 8 );
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
@ -1203,7 +1098,7 @@ static int i830_flush_queue(drm_device_t *dev)
if (used == I830_BUF_HARDWARE)
DRM_DEBUG("reclaimed from HARDWARE\n");
if (used == I830_BUF_CLIENT)
DRM_DEBUG("still on client HARDWARE\n");
DRM_DEBUG("still on client\n");
}
return ret;
@ -1242,8 +1137,7 @@ int i830_flush_ioctl(struct inode *inode, struct file *filp,
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
DRM_DEBUG("i830_flush_ioctl\n");
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i830_flush_ioctl called without lock held\n");
return -EINVAL;
@ -1381,46 +1275,17 @@ int i830_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
return retcode;
}
int i830_copybuf(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int i830_copybuf(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_i830_copy_t d;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
dev_priv->sarea_priv;
drm_buf_t *buf;
drm_i830_buf_priv_t *buf_priv;
drm_device_dma_t *dma = dev->dma;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i830_dma called without lock held\n");
return -EINVAL;
}
if (copy_from_user(&d, (drm_i830_copy_t *)arg, sizeof(d)))
return -EFAULT;
if(d.idx < 0 || d.idx > dma->buf_count) return -EINVAL;
buf = dma->buflist[ d.idx ];
buf_priv = buf->dev_private;
if (buf_priv->currently_mapped != I830_BUF_MAPPED) return -EPERM;
if(d.used < 0 || d.used > buf->total) return -EINVAL;
if (copy_from_user(buf_priv->virtual, d.address, d.used))
return -EFAULT;
sarea_priv->last_dispatch = (int) hw_status[5];
/* Never copy - 2.4.x doesn't need it */
return 0;
}
int i830_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
if(VM_DONTCOPY == 0) return 1;
return 0;
}

1
linux-core/i830_drv.c
View file

@ -29,6 +29,7 @@
* Jeff Hartmann <jhartmann@valinux.com>
* Gareth Hughes <gareth@valinux.com>
* Abraham vd Merwe <abraham@2d3d.co.za>
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include <linux/config.h>

21
linux-core/i830_drv.h
View file

@ -64,14 +64,13 @@ typedef struct drm_i830_private {
unsigned long hw_status_page;
unsigned long counter;
atomic_t flush_done;
wait_queue_head_t flush_queue; /* Processes waiting until flush */
drm_buf_t *mmap_buffer;
u32 front_di1, back_di1, zi1;
int back_offset;
int depth_offset;
int front_offset;
int w, h;
int pitch;
int back_pitch;
@ -107,14 +106,13 @@ extern int i830_swap_bufs(struct inode *inode, struct file *filp,
extern int i830_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#define I830_VERBOSE 0
#define I830_BASE(reg) ((unsigned long) \
dev_priv->mmio_map->handle)
#define I830_ADDR(reg) (I830_BASE(reg) + reg)
#define I830_DEREF(reg) *(__volatile__ int *)I830_ADDR(reg)
#define I830_READ(reg) I830_DEREF(reg)
#define I830_WRITE(reg,val) do { I830_DEREF(reg) = val; } while (0)
#define I830_DEREF(reg) *(__volatile__ unsigned int *)I830_ADDR(reg)
#define I830_READ(reg) readl((volatile u32 *)I830_ADDR(reg))
#define I830_WRITE(reg,val) writel(val, (volatile u32 *)I830_ADDR(reg))
#define I830_DEREF16(reg) *(__volatile__ u16 *)I830_ADDR(reg)
#define I830_READ16(reg) I830_DEREF16(reg)
#define I830_WRITE16(reg,val) do { I830_DEREF16(reg) = val; } while (0)
@ -143,15 +141,15 @@ extern int i830_clear_bufs(struct inode *inode, struct file *filp,
#define LP_RING 0x2030
#define HP_RING 0x2040
#define RING_TAIL 0x00
#define TAIL_ADDR 0x000FFFF8
#define TAIL_ADDR 0x001FFFF8
#define RING_HEAD 0x04
#define HEAD_WRAP_COUNT 0xFFE00000
#define HEAD_WRAP_ONE 0x00200000
#define HEAD_ADDR 0x001FFFFC
#define RING_START 0x08
#define START_ADDR 0x00FFFFF8
#define START_ADDR 0x0xFFFFF000
#define RING_LEN 0x0C
#define RING_NR_PAGES 0x000FF000
#define RING_NR_PAGES 0x001FF000
#define RING_REPORT_MASK 0x00000006
#define RING_REPORT_64K 0x00000002
#define RING_REPORT_128K 0x00000004
@ -182,6 +180,9 @@ extern int i830_clear_bufs(struct inode *inode, struct file *filp,
#define CMD_OP_DESTBUFFER_INFO ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1)
#define CMD_3D (0x3<<29)
#define STATE3D_CONST_BLEND_COLOR_CMD (CMD_3D|(0x1d<<24)|(0x88<<16))
#define STATE3D_MAP_COORD_SETBIND_CMD (CMD_3D|(0x1d<<24)|(0x02<<16))
#define BR00_BITBLT_CLIENT 0x40000000
#define BR00_OP_COLOR_BLT 0x10000000
@ -206,6 +207,8 @@ extern int i830_clear_bufs(struct inode *inode, struct file *filp,
#define XY_SRC_COPY_BLT_WRITE_RGB (1<<20)
#define MI_BATCH_BUFFER ((0x30<<23)|1)
#define MI_BATCH_BUFFER_START (0x31<<23)
#define MI_BATCH_BUFFER_END (0xA<<23)
#define MI_BATCH_NON_SECURE (1)

28
linux/Makefile.linux
View file

@ -81,6 +81,9 @@ PRGLIBS =
# This may not be correct, but it is the best assumption we can make.
VERSION := $(shell uname -r)
# For Red Hat...
RHVERS := $(shell uname -r)custom
A := /lib/modules/$(VERSION)/build/include
B := /usr/src/linux-$(VERSION)/include
C := /usr/src/linux/include
@ -90,23 +93,31 @@ V := $(shell gcc -E -nostdinc -I$A picker.c 2>/dev/null \
| grep -s 'RELEASE = ' | cut -d' ' -f3)
ifeq ($(V),"$(VERSION)")
TREE := $A
else
ifeq ($(V),"$(RHVERS)")
TREE := $A
else
V := $(shell gcc -E -nostdinc -I$B picker.c 2>/dev/null \
| grep -s 'RELEASE = ' | cut -d' ' -f3)
ifeq ($(V),"$(VERSION)")
TREE := $B
TREE := $B
else
V := $(shell gcc -E -nostdinc -I$C picker.c 2>/dev/null \
ifeq ($(V),"$(RHVERS)")
TREE := $B
else
V := $(shell gcc -E -nostdinc -I$C picker.c 2>/dev/null \
| grep -s 'RELEASE = ' | cut -d' ' -f3)
ifeq ($(V),"$(VERSION)")
TREE := $C
TREE := $C
else
V := $(shell gcc -E -nostdinc -I$D picker.c 2>/dev/null \
V := $(shell gcc -E -nostdinc -I$D picker.c 2>/dev/null \
| grep -s 'RELEASE = ' | cut -d' ' -f3)
ifeq ($(V),"$(VERSION)")
TREE := $D
TREE := $D
else
TREE := 0
TREE := 0
endif
endif
endif
endif
endif
@ -124,11 +135,16 @@ MODVERSIONS := $(shell gcc -E -nostdinc -I$(TREE) picker.c 2>/dev/null \
AGP := $(shell gcc -E -nostdinc -I$(TREE) picker.c 2>/dev/null \
| grep -s 'AGP = ' | cut -d' ' -f3)
MACHINE := $(shell echo `uname -m`)
# Red Hat's kernels have 4 args to do_munmap()
DOMUNMAP := $(shell grep do_munmap $(TREE)/linux/mm.h | grep -c acct)
ifeq ($(AGP),0)
AGP := $(shell gcc -E -nostdinc -I$(TREE) picker.c 2>/dev/null \
| grep -s 'AGP_MODULE = ' | cut -d' ' -f3)
endif
ifeq ($(DOMUNMAP),1)
MODCFLAGS += -DDO_MUNMAP_4_ARGS
endif
ifeq ($(AGP),1)
MODCFLAGS += -DCONFIG_AGP -DCONFIG_AGP_MODULE
DRMTEMPLATES += drm_agpsupport.h

7
linux/drmP.h
View file

@ -53,6 +53,7 @@
#include <linux/sched.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
#include <linux/mm.h>
#include <linux/pagemap.h>
#if defined(__alpha__) || defined(__powerpc__)
#include <asm/pgtable.h> /* For pte_wrprotect */
#endif
@ -165,7 +166,7 @@
#define pte_unmap(pte)
#endif
#if LINUX_VERSION_CODE < 0x020413 /* KERNEL_VERSION(2,4,19) */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,19)
static inline struct page * vmalloc_to_page(void * vmalloc_addr)
{
unsigned long addr = (unsigned long) vmalloc_addr;
@ -190,7 +191,7 @@ static inline struct page * vmalloc_to_page(void * vmalloc_addr)
}
#endif
#if LINUX_VERSION_CODE < 0x020500
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#define DRM_RPR_ARG(vma)
#else
#define DRM_RPR_ARG(vma) vma,
@ -597,7 +598,7 @@ typedef struct drm_device {
#endif
struct pci_dev *pdev;
#ifdef __alpha__
#if LINUX_VERSION_CODE < 0x020403
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
struct pci_controler *hose;
#else
struct pci_controller *hose;

52
linux/i830.h
View file

@ -45,11 +45,11 @@
#define DRIVER_NAME "i830"
#define DRIVER_DESC "Intel 830M"
#define DRIVER_DATE "20011004"
#define DRIVER_DATE "20020828"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 2
#define DRIVER_PATCHLEVEL 0
#define DRIVER_PATCHLEVEL 1
#define DRIVER_IOCTLS \
[DRM_IOCTL_NR(DRM_IOCTL_I830_INIT)] = { i830_dma_init, 1, 1 }, \
@ -87,50 +87,10 @@
i830_dma_quiescent( dev ); \
} while (0)
#define __HAVE_DMA_IRQ 1
#define __HAVE_DMA_IRQ_BH 1
#define __HAVE_SHARED_IRQ 1
#define DRIVER_PREINSTALL() do { \
drm_i830_private_t *dev_priv = \
(drm_i830_private_t *)dev->dev_private; \
u16 tmp; \
tmp = I830_READ16( I830REG_HWSTAM ); \
tmp = tmp & 0x6000; \
I830_WRITE16( I830REG_HWSTAM, tmp ); \
\
tmp = I830_READ16( I830REG_INT_MASK_R ); \
tmp = tmp & 0x6000; /* Unmask interrupts */ \
I830_WRITE16( I830REG_INT_MASK_R, tmp ); \
tmp = I830_READ16( I830REG_INT_ENABLE_R ); \
tmp = tmp & 0x6000; /* Disable all interrupts */ \
I830_WRITE16( I830REG_INT_ENABLE_R, tmp ); \
} while (0)
#define DRIVER_POSTINSTALL() do { \
drm_i830_private_t *dev_priv = \
(drm_i830_private_t *)dev->dev_private; \
u16 tmp; \
tmp = I830_READ16( I830REG_INT_ENABLE_R ); \
tmp = tmp & 0x6000; \
tmp = tmp | 0x0003; /* Enable bp & user interrupts */ \
I830_WRITE16( I830REG_INT_ENABLE_R, tmp ); \
} while (0)
#define DRIVER_UNINSTALL() do { \
drm_i830_private_t *dev_priv = \
(drm_i830_private_t *)dev->dev_private; \
u16 tmp; \
if ( dev_priv ) { \
tmp = I830_READ16( I830REG_INT_IDENTITY_R ); \
tmp = tmp & ~(0x6000); /* Clear all interrupts */ \
if ( tmp != 0 ) \
I830_WRITE16( I830REG_INT_IDENTITY_R, tmp ); \
\
tmp = I830_READ16( I830REG_INT_ENABLE_R ); \
tmp = tmp & 0x6000; /* Disable all interrupts */ \
I830_WRITE16( I830REG_INT_ENABLE_R, tmp ); \
} \
} while (0)
/* Don't need an irq any more. The template code will make sure that
* a noop stub is generated for compatibility.
*/
#define __HAVE_DMA_IRQ 0
/* Buffer customization:
*/

411
linux/i830_dma.c
View file

@ -26,8 +26,8 @@
*
* Authors: Rickard E. (Rik) Faith <faith@valinux.com>
* Jeff Hartmann <jhartmann@valinux.com>
* Keith Whitwell <keithw@valinux.com>
* Abraham vd Merwe <abraham@2d3d.co.za>
* Keith Whitwell <keith@tungstengraphics.com>
* Abraham vd Merwe <abraham@2d3d.co.za>
*
*/
@ -40,9 +40,10 @@
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
/* in case we don't have a 2.3.99-pre6 kernel or later: */
#ifndef VM_DONTCOPY
#define VM_DONTCOPY 0
#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 I830_BUF_FREE 2
@ -54,26 +55,24 @@
#define RING_LOCALS unsigned int outring, ringmask; volatile char *virt;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,2)
#define down_write down
#define up_write up
#endif
#define DO_IDLE_WORKAROUND() \
do { \
int _head; \
int _tail; \
do { \
_head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR; \
_tail = I830_READ(LP_RING + RING_TAIL) & TAIL_ADDR; \
udelay(10); \
} while(_head != _tail); \
} while(0)
#ifndef LockPage
#define LockPage(page) set_bit(PG_locked, &(page)->flags)
#endif
#ifndef UnlockPage
#define UnlockPage(page) unlock_page(page)
#endif
#define I830_SYNC_WORKAROUND 0
#define I830_VERBOSE 0
#define BEGIN_LP_RING(n) do { \
if (I830_VERBOSE) \
DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n", \
printk("BEGIN_LP_RING(%d) in %s\n", \
n, __FUNCTION__); \
if (I830_SYNC_WORKAROUND) \
DO_IDLE_WORKAROUND(); \
if (dev_priv->ring.space < n*4) \
i830_wait_ring(dev, n*4); \
dev_priv->ring.space -= n*4; \
@ -83,13 +82,13 @@ do { \
} while (0)
#define ADVANCE_LP_RING() do { \
if (I830_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING\n"); \
if (I830_VERBOSE) printk("ADVANCE_LP_RING %x\n", outring); \
dev_priv->ring.tail = outring; \
I830_WRITE(LP_RING + RING_TAIL, outring); \
} while(0)
#define OUT_RING(n) do { \
if (I830_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
if (I830_VERBOSE) printk(" OUT_RING %x\n", (int)(n)); \
*(volatile unsigned int *)(virt + outring) = n; \
outring += 4; \
outring &= ringmask; \
@ -201,36 +200,24 @@ static int i830_map_buffer(drm_buf_t *buf, struct file *filp)
if(buf_priv->currently_mapped == I830_BUF_MAPPED) return -EINVAL;
if(VM_DONTCOPY != 0) {
#if LINUX_VERSION_CODE <= 0x020402
down( &current->mm->mmap_sem );
#else
down_write( &current->mm->mmap_sem );
#endif
old_fops = filp->f_op;
filp->f_op = &i830_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_DEBUG("mmap error\n");
retcode = (signed int)buf_priv->virtual;
buf_priv->virtual = 0;
}
#if LINUX_VERSION_CODE <= 0x020402
up( &current->mm->mmap_sem );
#else
up_write( &current->mm->mmap_sem );
#endif
} else {
buf_priv->virtual = buf_priv->kernel_virtual;
buf_priv->currently_mapped = I830_BUF_MAPPED;
down_write( &current->mm->mmap_sem );
old_fops = filp->f_op;
filp->f_op = &i830_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;
}
@ -239,25 +226,15 @@ static int i830_unmap_buffer(drm_buf_t *buf)
drm_i830_buf_priv_t *buf_priv = buf->dev_private;
int retcode = 0;
if(VM_DONTCOPY != 0) {
if(buf_priv->currently_mapped != I830_BUF_MAPPED)
return -EINVAL;
#if LINUX_VERSION_CODE <= 0x020402
down( &current->mm->mmap_sem );
#else
down_write( &current->mm->mmap_sem );
#endif
if(buf_priv->currently_mapped != I830_BUF_MAPPED)
return -EINVAL;
retcode = do_munmap(current->mm,
(unsigned long)buf_priv->virtual,
(size_t) buf->total);
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);
#if LINUX_VERSION_CODE <= 0x020402
up( &current->mm->mmap_sem );
#else
up_write( &current->mm->mmap_sem );
#endif
}
buf_priv->currently_mapped = I830_BUF_UNMAPPED;
buf_priv->virtual = 0;
@ -275,14 +252,14 @@ static int i830_dma_get_buffer(drm_device_t *dev, drm_i830_dma_t *d,
buf = i830_freelist_get(dev);
if (!buf) {
retcode = -ENOMEM;
DRM_DEBUG("retcode=%d\n", retcode);
DRM_ERROR("retcode=%d\n", retcode);
return retcode;
}
retcode = i830_map_buffer(buf, filp);
if(retcode) {
i830_freelist_put(dev, buf);
DRM_DEBUG("mapbuf failed, retcode %d\n", retcode);
DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
return retcode;
}
buf->pid = priv->pid;
@ -303,32 +280,17 @@ static unsigned long i830_alloc_page(drm_device_t *dev)
if(address == 0UL)
return 0;
#if LINUX_VERSION_CODE < 0x020409
atomic_inc(&virt_to_page(address)->count);
set_bit(PG_locked, &virt_to_page(address)->flags);
#else
get_page(virt_to_page(address));
#if LINUX_VERSION_CODE < 0x020500
LockPage(virt_to_page(address));
#else
SetPageLocked(virt_to_page(address));
#endif
#endif
return address;
}
static void i830_free_page(drm_device_t *dev, unsigned long page)
{
if (page) {
#if LINUX_VERSION_CODE < 0x020409
atomic_dec(&virt_to_page(page)->count);
clear_bit(PG_locked, &virt_to_page(page)->flags);
wake_up(&virt_to_page(page)->wait);
#else
struct page *p = virt_to_page(page);
put_page(p);
unlock_page(p);
#endif
UnlockPage(p);
free_page(page);
}
}
@ -384,7 +346,7 @@ static int i830_wait_ring(drm_device_t *dev, int n)
}
iters++;
if((signed)(end - jiffies) <= 0) {
if(time_before(end, jiffies)) {
DRM_ERROR("space: %d wanted %d\n", ring->space, n);
DRM_ERROR("lockup\n");
goto out_wait_ring;
@ -402,7 +364,7 @@ static void i830_kernel_lost_context(drm_device_t *dev)
drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
ring->head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
ring->tail = I830_READ(LP_RING + RING_TAIL);
ring->tail = I830_READ(LP_RING + RING_TAIL) & TAIL_ADDR;
ring->space = ring->head - (ring->tail+8);
if (ring->space < 0) ring->space += ring->Size;
}
@ -478,9 +440,6 @@ static int i830_dma_initialize(drm_device_t *dev,
((u8 *)dev_priv->sarea_map->handle +
init->sarea_priv_offset);
atomic_set(&dev_priv->flush_done, 0);
init_waitqueue_head(&dev_priv->flush_queue);
dev_priv->ring.Start = init->ring_start;
dev_priv->ring.End = init->ring_end;
dev_priv->ring.Size = init->ring_size;
@ -504,11 +463,17 @@ static int i830_dma_initialize(drm_device_t *dev,
dev_priv->pitch = init->pitch;
dev_priv->back_offset = init->back_offset;
dev_priv->depth_offset = init->depth_offset;
dev_priv->front_offset = init->front_offset;
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;
DRM_DEBUG("front_di1 %x\n", dev_priv->front_di1);
DRM_DEBUG("back_offset %x\n", dev_priv->back_offset);
DRM_DEBUG("back_di1 %x\n", dev_priv->back_di1);
DRM_DEBUG("pitch_bits %x\n", init->pitch_bits);
dev_priv->cpp = init->cpp;
/* We are using seperate values as placeholders for mechanisms for
* private backbuffer/depthbuffer usage.
@ -574,38 +539,57 @@ int i830_dma_init(struct inode *inode, struct file *filp,
return retcode;
}
#define GFX_OP_STIPPLE ((0x3<<29)|(0x1d<<24)|(0x83<<16))
#define ST1_ENABLE (1<<16)
#define ST1_MASK (0xffff)
/* Most efficient way to verify state for the i830 is as it is
* emitted. Non-conformant state is silently dropped.
*
* Use 'volatile' & local var tmp to force the emitted values to be
* identical to the verified ones.
*/
static void i830EmitContextVerified( drm_device_t *dev,
volatile unsigned int *code )
static void i830EmitContextVerified( drm_device_t *dev,
unsigned int *code )
{
drm_i830_private_t *dev_priv = dev->dev_private;
int i, j = 0;
unsigned int tmp;
RING_LOCALS;
BEGIN_LP_RING( I830_CTX_SETUP_SIZE );
for ( i = 0 ; i < I830_CTX_SETUP_SIZE ; i++ ) {
tmp = code[i];
BEGIN_LP_RING( I830_CTX_SETUP_SIZE + 2 );
#if 0
if ((tmp & (7<<29)) == (3<<29) &&
OUT_RING( GFX_OP_STIPPLE );
OUT_RING( 0 );
for ( i = 0 ; i < I830_CTXREG_BLENDCOLR0 ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == CMD_3D &&
(tmp & (0x1f<<24)) < (0x1d<<24)) {
OUT_RING( tmp );
j++;
} else {
printk("Skipping %d\n", i);
DRM_ERROR("Skipping %d\n", i);
}
#else
OUT_RING( tmp );
j++;
#endif
}
OUT_RING( STATE3D_CONST_BLEND_COLOR_CMD );
OUT_RING( code[I830_CTXREG_BLENDCOLR] );
j += 2;
for ( i = I830_CTXREG_VF ; i < I830_CTXREG_MCSB0 ; i++ ) {
tmp = code[i];
if ((tmp & (7<<29)) == CMD_3D &&
(tmp & (0x1f<<24)) < (0x1d<<24)) {
OUT_RING( tmp );
j++;
} else {
DRM_ERROR("Skipping %d\n", i);
}
}
OUT_RING( STATE3D_MAP_COORD_SETBIND_CMD );
OUT_RING( code[I830_CTXREG_MCSB1] );
j += 2;
if (j & 1)
OUT_RING( 0 );
@ -650,6 +634,9 @@ static void i830EmitTexBlendVerified( drm_device_t *dev,
unsigned int tmp;
RING_LOCALS;
if (!num)
return;
BEGIN_LP_RING( num );
for ( i = 0 ; i < num ; i++ ) {
@ -723,7 +710,7 @@ static void i830EmitDestVerified( drm_device_t *dev,
BUF_3D_PITCH(dev_priv->depth_pitch * dev_priv->cpp));
OUT_RING( dev_priv->zi1 );
} else {
DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
DRM_ERROR("bad di1 %x (allow %x or %x)\n",
tmp, dev_priv->front_di1, dev_priv->back_di1);
}
@ -745,7 +732,7 @@ static void i830EmitDestVerified( drm_device_t *dev,
if((tmp & ~0x3) == GFX_OP_SCISSOR_ENABLE) {
OUT_RING( tmp );
} else {
DRM_DEBUG("bad scissor enable\n");
DRM_ERROR("bad scissor enable\n");
OUT_RING( 0 );
}
@ -865,7 +852,7 @@ static void i830_dma_dispatch_clear( drm_device_t *dev, int flags,
OUT_RING( BR13 );
OUT_RING( (pbox->y1 << 16) | pbox->x1 );
OUT_RING( (pbox->y2 << 16) | pbox->x2 );
OUT_RING( 0 );
OUT_RING( dev_priv->front_offset );
OUT_RING( clear_color );
ADVANCE_LP_RING();
}
@ -953,7 +940,7 @@ static void i830_dma_dispatch_swap( drm_device_t *dev )
OUT_RING( (pbox->y2 << 16) |
pbox->x2 );
OUT_RING( 0 /* front ofs always zero */ );
OUT_RING( dev_priv->front_offset );
OUT_RING( (pbox->y1 << 16) |
pbox->x1 );
@ -993,7 +980,7 @@ static void i830_dma_dispatch_vertex(drm_device_t *dev,
}
}
if (used > 4*1024)
if (used > 4*1023)
used = 0;
if (sarea_priv->dirty)
@ -1010,12 +997,17 @@ static void i830_dma_dispatch_vertex(drm_device_t *dev,
DRM_DEBUG( "start + used - 4 : %ld\n", start + used - 4);
if (buf_priv->currently_mapped == I830_BUF_MAPPED) {
*(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
u32 *vp = buf_priv->virtual;
vp[0] = (GFX_OP_PRIMITIVE |
sarea_priv->vertex_prim |
((used/4)-2));
vp[used/4] = MI_BATCH_BUFFER_END;
used += 4;
if (used & 4) {
*(u32 *)((u32)buf_priv->virtual + used) = 0;
vp[used/4] = 0;
used += 4;
}
@ -1035,80 +1027,35 @@ static void i830_dma_dispatch_vertex(drm_device_t *dev,
ADVANCE_LP_RING();
}
BEGIN_LP_RING(4);
OUT_RING( MI_BATCH_BUFFER );
BEGIN_LP_RING(2);
OUT_RING( MI_BATCH_BUFFER_START | (2<<6) );
OUT_RING( start | MI_BATCH_NON_SECURE );
OUT_RING( start + used - 4 );
OUT_RING( 0 );
ADVANCE_LP_RING();
} while (++i < nbox);
}
BEGIN_LP_RING(10);
OUT_RING( CMD_STORE_DWORD_IDX );
OUT_RING( 20 );
OUT_RING( dev_priv->counter );
OUT_RING( 0 );
if (discard) {
dev_priv->counter++;
(void) cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
I830_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( I830_BUF_FREE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
}
/* Interrupts are only for flushing */
void i830_dma_service(int irq, void *device, struct pt_regs *regs)
{
drm_device_t *dev = (drm_device_t *)device;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
u16 temp;
temp = I830_READ16(I830REG_INT_IDENTITY_R);
temp = temp & ~(0x6000);
if(temp != 0) I830_WRITE16(I830REG_INT_IDENTITY_R,
temp); /* Clear all interrupts */
else
return;
queue_task(&dev->tq, &tq_immediate);
mark_bh(IMMEDIATE_BH);
}
void DRM(dma_immediate_bh)(void *device)
{
drm_device_t *dev = (drm_device_t *) device;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
atomic_set(&dev_priv->flush_done, 1);
wake_up_interruptible(&dev_priv->flush_queue);
}
static inline void i830_dma_emit_flush(drm_device_t *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
i830_kernel_lost_context(dev);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( GFX_OP_USER_INTERRUPT );
ADVANCE_LP_RING();
i830_wait_ring( dev, dev_priv->ring.Size - 8 );
atomic_set(&dev_priv->flush_done, 1);
wake_up_interruptible(&dev_priv->flush_queue);
}
static inline void i830_dma_quiescent_emit(drm_device_t *dev)
void i830_dma_quiescent(drm_device_t *dev)
{
drm_i830_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
@ -1119,79 +1066,27 @@ static inline void i830_dma_quiescent_emit(drm_device_t *dev)
OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
OUT_RING( GFX_OP_USER_INTERRUPT );
OUT_RING( 0 );
ADVANCE_LP_RING();
i830_wait_ring( dev, dev_priv->ring.Size - 8 );
atomic_set(&dev_priv->flush_done, 1);
wake_up_interruptible(&dev_priv->flush_queue);
}
void i830_dma_quiescent(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
unsigned long end;
if(dev_priv == NULL) {
return;
}
atomic_set(&dev_priv->flush_done, 0);
add_wait_queue(&dev_priv->flush_queue, &entry);
end = jiffies + (HZ*3);
for (;;) {
current->state = TASK_INTERRUPTIBLE;
i830_dma_quiescent_emit(dev);
if (atomic_read(&dev_priv->flush_done) == 1) break;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("lockup\n");
break;
}
schedule_timeout(HZ*3);
if (signal_pending(current)) {
break;
}
}
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
return;
}
static int i830_flush_queue(drm_device_t *dev)
{
DECLARE_WAITQUEUE(entry, current);
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
drm_i830_private_t *dev_priv = dev->dev_private;
drm_device_dma_t *dma = dev->dma;
unsigned long end;
int i, ret = 0;
int i, ret = 0;
RING_LOCALS;
i830_kernel_lost_context(dev);
if(dev_priv == NULL) {
return 0;
}
atomic_set(&dev_priv->flush_done, 0);
add_wait_queue(&dev_priv->flush_queue, &entry);
end = jiffies + (HZ*3);
for (;;) {
current->state = TASK_INTERRUPTIBLE;
i830_dma_emit_flush(dev);
if (atomic_read(&dev_priv->flush_done) == 1) break;
if((signed)(end - jiffies) <= 0) {
DRM_ERROR("lockup\n");
break;
}
schedule_timeout(HZ*3);
if (signal_pending(current)) {
ret = -EINTR; /* Can't restart */
break;
}
}
current->state = TASK_RUNNING;
remove_wait_queue(&dev_priv->flush_queue, &entry);
BEGIN_LP_RING(2);
OUT_RING( CMD_REPORT_HEAD );
OUT_RING( 0 );
ADVANCE_LP_RING();
i830_wait_ring( dev, dev_priv->ring.Size - 8 );
for (i = 0; i < dma->buf_count; i++) {
drm_buf_t *buf = dma->buflist[ i ];
@ -1203,7 +1098,7 @@ static int i830_flush_queue(drm_device_t *dev)
if (used == I830_BUF_HARDWARE)
DRM_DEBUG("reclaimed from HARDWARE\n");
if (used == I830_BUF_CLIENT)
DRM_DEBUG("still on client HARDWARE\n");
DRM_DEBUG("still on client\n");
}
return ret;
@ -1242,8 +1137,7 @@ int i830_flush_ioctl(struct inode *inode, struct file *filp,
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
DRM_DEBUG("i830_flush_ioctl\n");
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i830_flush_ioctl called without lock held\n");
return -EINVAL;
@ -1381,46 +1275,17 @@ int i830_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
return retcode;
}
int i830_copybuf(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
int i830_copybuf(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_i830_copy_t d;
drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
u32 *hw_status = (u32 *)dev_priv->hw_status_page;
drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
dev_priv->sarea_priv;
drm_buf_t *buf;
drm_i830_buf_priv_t *buf_priv;
drm_device_dma_t *dma = dev->dma;
if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
DRM_ERROR("i830_dma called without lock held\n");
return -EINVAL;
}
if (copy_from_user(&d, (drm_i830_copy_t *)arg, sizeof(d)))
return -EFAULT;
if(d.idx < 0 || d.idx > dma->buf_count) return -EINVAL;
buf = dma->buflist[ d.idx ];
buf_priv = buf->dev_private;
if (buf_priv->currently_mapped != I830_BUF_MAPPED) return -EPERM;
if(d.used < 0 || d.used > buf->total) return -EINVAL;
if (copy_from_user(buf_priv->virtual, d.address, d.used))
return -EFAULT;
sarea_priv->last_dispatch = (int) hw_status[5];
/* Never copy - 2.4.x doesn't need it */
return 0;
}
int i830_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
if(VM_DONTCOPY == 0) return 1;
return 0;
}

1
linux/i830_drv.c
View file

@ -29,6 +29,7 @@
* Jeff Hartmann <jhartmann@valinux.com>
* Gareth Hughes <gareth@valinux.com>
* Abraham vd Merwe <abraham@2d3d.co.za>
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include <linux/config.h>

21
linux/i830_drv.h
View file

@ -64,14 +64,13 @@ typedef struct drm_i830_private {
unsigned long hw_status_page;
unsigned long counter;
atomic_t flush_done;
wait_queue_head_t flush_queue; /* Processes waiting until flush */
drm_buf_t *mmap_buffer;
u32 front_di1, back_di1, zi1;
int back_offset;
int depth_offset;
int front_offset;
int w, h;
int pitch;
int back_pitch;
@ -107,14 +106,13 @@ extern int i830_swap_bufs(struct inode *inode, struct file *filp,
extern int i830_clear_bufs(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg);
#define I830_VERBOSE 0
#define I830_BASE(reg) ((unsigned long) \
dev_priv->mmio_map->handle)
#define I830_ADDR(reg) (I830_BASE(reg) + reg)
#define I830_DEREF(reg) *(__volatile__ int *)I830_ADDR(reg)
#define I830_READ(reg) I830_DEREF(reg)
#define I830_WRITE(reg,val) do { I830_DEREF(reg) = val; } while (0)
#define I830_DEREF(reg) *(__volatile__ unsigned int *)I830_ADDR(reg)
#define I830_READ(reg) readl((volatile u32 *)I830_ADDR(reg))
#define I830_WRITE(reg,val) writel(val, (volatile u32 *)I830_ADDR(reg))
#define I830_DEREF16(reg) *(__volatile__ u16 *)I830_ADDR(reg)
#define I830_READ16(reg) I830_DEREF16(reg)
#define I830_WRITE16(reg,val) do { I830_DEREF16(reg) = val; } while (0)
@ -143,15 +141,15 @@ extern int i830_clear_bufs(struct inode *inode, struct file *filp,
#define LP_RING 0x2030
#define HP_RING 0x2040
#define RING_TAIL 0x00
#define TAIL_ADDR 0x000FFFF8
#define TAIL_ADDR 0x001FFFF8
#define RING_HEAD 0x04
#define HEAD_WRAP_COUNT 0xFFE00000
#define HEAD_WRAP_ONE 0x00200000
#define HEAD_ADDR 0x001FFFFC
#define RING_START 0x08
#define START_ADDR 0x00FFFFF8
#define START_ADDR 0x0xFFFFF000
#define RING_LEN 0x0C
#define RING_NR_PAGES 0x000FF000
#define RING_NR_PAGES 0x001FF000
#define RING_REPORT_MASK 0x00000006
#define RING_REPORT_64K 0x00000002
#define RING_REPORT_128K 0x00000004
@ -182,6 +180,9 @@ extern int i830_clear_bufs(struct inode *inode, struct file *filp,
#define CMD_OP_DESTBUFFER_INFO ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1)
#define CMD_3D (0x3<<29)
#define STATE3D_CONST_BLEND_COLOR_CMD (CMD_3D|(0x1d<<24)|(0x88<<16))
#define STATE3D_MAP_COORD_SETBIND_CMD (CMD_3D|(0x1d<<24)|(0x02<<16))
#define BR00_BITBLT_CLIENT 0x40000000
#define BR00_OP_COLOR_BLT 0x10000000
@ -206,6 +207,8 @@ extern int i830_clear_bufs(struct inode *inode, struct file *filp,
#define XY_SRC_COPY_BLT_WRITE_RGB (1<<20)
#define MI_BATCH_BUFFER ((0x30<<23)|1)
#define MI_BATCH_BUFFER_START (0x31<<23)
#define MI_BATCH_BUFFER_END (0xA<<23)
#define MI_BATCH_NON_SECURE (1)