diff options
Diffstat (limited to 'linux/i810_dma.c')
-rw-r--r-- | linux/i810_dma.c | 1421 |
1 files changed, 0 insertions, 1421 deletions
diff --git a/linux/i810_dma.c b/linux/i810_dma.c deleted file mode 100644 index 621be7a9..00000000 --- a/linux/i810_dma.c +++ /dev/null @@ -1,1421 +0,0 @@ -/* 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> - * - */ - -#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 - -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( ¤t->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 = NULL; - } - up_write( ¤t->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(¤t->mm->mmap_sem); - retcode = DO_MUNMAP(current->mm, - (unsigned long)buf_priv->virtual, - (size_t) buf->total); - up_write(¤t->mm->mmap_sem); - - buf_priv->currently_mapped = I810_BUF_UNMAPPED; - buf_priv->virtual = NULL; - - 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; - - /* 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 (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled) - DRM(irq_uninstall)(dev); - - 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, dev); - } - 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, dev); - } - } - 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); - last_head = ring->head; - } - - 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, dev); - } - 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; - } - dev_priv->mmio_map = drm_core_findmap(dev, 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; - } - dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset); - if (!dev->agp_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, dev); - - 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->front_offset = init->front_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; -} - -/* i810 DRM version 1.1 used a smaller init structure with different - * ordering of values than is currently used (drm >= 1.2). There is - * no defined way to detect the XFree version to correct this problem, - * however by checking using this procedure we can detect the correct - * thing to do. - * - * #1 Read the Smaller init structure from user-space - * #2 Verify the overlay_physical is a valid physical address, or NULL - * If it isn't then we have a v1.1 client. Fix up params. - * If it is, then we have a 1.2 client... get the rest of the data. - */ -int i810_dma_init_compat(drm_i810_init_t *init, unsigned long arg) -{ - - /* Get v1.1 init data */ - if (copy_from_user(init, (drm_i810_pre12_init_t __user *)arg, - sizeof(drm_i810_pre12_init_t))) { - return -EFAULT; - } - - if ((!init->overlay_physical) || (init->overlay_physical > 4096)) { - - /* This is a v1.2 client, just get the v1.2 init data */ - DRM_INFO("Using POST v1.2 init.\n"); - if (copy_from_user(init, (drm_i810_init_t __user *)arg, - sizeof(drm_i810_init_t))) { - return -EFAULT; - } - } else { - - /* This is a v1.1 client, fix the params */ - DRM_INFO("Using PRE v1.2 init.\n"); - init->pitch_bits = init->h; - init->pitch = init->w; - init->h = init->overlay_physical; - init->w = init->overlay_offset; - init->overlay_physical = 0; - init->overlay_offset = 0; - } - - 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; - - /* Get only the init func */ - if (copy_from_user(&init, (void __user *)arg, sizeof(drm_i810_init_func_t))) - return -EFAULT; - - switch(init.func) { - case I810_INIT_DMA: - /* This case is for backward compatibility. It - * handles XFree 4.1.0 and 4.2.0, and has to - * do some parameter checking as described below. - * It will someday go away. - */ - retcode = i810_dma_init_compat(&init, arg); - if (retcode) - return retcode; - - 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; - - default: - case I810_INIT_DMA_1_4: - DRM_INFO("Using v1.4 init.\n"); - if (copy_from_user(&init, (drm_i810_init_t __user *)arg, - sizeof(drm_i810_init_t))) { - return -EFAULT; - } - 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: - DRM_INFO("DMA Cleanup\n"); - retcode = i810_dma_cleanup(dev); - break; - } - - return retcode; -} - - - -/* Most efficient way to verify state for the i810 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 i810EmitContextVerified( drm_device_t *dev, - volatile unsigned int *code ) -{ - drm_i810_private_t *dev_priv = dev->dev_private; - int i, j = 0; - unsigned int tmp; - 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++ ) { - tmp = code[i]; - - if ((tmp & (7<<29)) == (3<<29) && - (tmp & (0x1f<<24)) < (0x1d<<24)) - { - OUT_RING( tmp ); - 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; - unsigned int tmp; - 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++ ) { - tmp = code[i]; - - if ((tmp & (7<<29)) == (3<<29) && - (tmp & (0x1f<<24)) < (0x1d<<24)) - { - OUT_RING( tmp ); - 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 - DRM_DEBUG("bad di1 %x (allow %x or %x)\n", - tmp, dev_priv->front_di1, dev_priv->back_di1); - - /* 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; - - DRM_DEBUG("%s %x\n", __FUNCTION__, 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; - - if ( dev_priv->current_page == 1 ) { - unsigned int tmp = flags; - - flags &= ~(I810_FRONT | I810_BACK); - if (tmp & I810_FRONT) flags |= I810_BACK; - if (tmp & I810_BACK) flags |= I810_FRONT; - } - - 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 i; - RING_LOCALS; - - DRM_DEBUG("swapbuffers\n"); - - 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 = 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)); - if (dev_priv->current_page == 0) - OUT_RING(dev_priv->front_offset + start); - else - OUT_RING(dev_priv->back_offset + start); - OUT_RING( pitch ); - if (dev_priv->current_page == 0) - OUT_RING(dev_priv->back_offset + start); - else - OUT_RING(dev_priv->front_offset + 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->kernel_virtual = ((GFX_OP_PRIMITIVE | prim | ((used/4)-2))); - - if (used & 4) { - *(u32 *)((u32)buf_priv->kernel_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(); - } -} - -static void i810_dma_dispatch_flip( drm_device_t *dev ) -{ - drm_i810_private_t *dev_priv = dev->dev_private; - int pitch = dev_priv->pitch; - RING_LOCALS; - - DRM_DEBUG( "%s: page=%d pfCurrentPage=%d\n", - __FUNCTION__, - dev_priv->current_page, - dev_priv->sarea_priv->pf_current_page); - - i810_kernel_lost_context(dev); - - BEGIN_LP_RING( 2 ); - OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE ); - OUT_RING( 0 ); - ADVANCE_LP_RING(); - - BEGIN_LP_RING( I810_DEST_SETUP_SIZE + 2 ); - /* On i815 at least ASYNC is buggy */ - /* pitch<<5 is from 11.2.8 p158, - its the pitch / 8 then left shifted 8, - so (pitch >> 3) << 8 */ - OUT_RING( CMD_OP_FRONTBUFFER_INFO | (pitch<<5) /*| ASYNC_FLIP */ ); - if ( dev_priv->current_page == 0 ) { - OUT_RING( dev_priv->back_offset ); - dev_priv->current_page = 1; - } else { - OUT_RING( dev_priv->front_offset ); - dev_priv->current_page = 0; - } - OUT_RING(0); - ADVANCE_LP_RING(); - - BEGIN_LP_RING(2); - OUT_RING( CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP ); - OUT_RING( 0 ); - ADVANCE_LP_RING(); - - /* Increment the frame counter. The client-side 3D driver must - * throttle the framerate by waiting for this value before - * performing the swapbuffer ioctl. - */ - dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; - -} - -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(drm_device_t *dev, struct file *filp) -{ - 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 __user *)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; - } - - DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n", - vertex.idx, vertex.used, vertex.discard); - - 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 __user *)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; - - DRM_DEBUG("i810_swap_bufs\n"); - - 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 __user *)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); - - DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n", - current->pid, retcode, d.granted); - - if (copy_to_user((drm_dma_t __user *)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 __user *)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; - } - - if (mc.idx >= dma->buf_count || mc.idx < 0) - 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 __user *)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; -} - - -/* Not sure why this isn't set all the time: - */ -static void i810_do_init_pageflip( drm_device_t *dev ) -{ - drm_i810_private_t *dev_priv = dev->dev_private; - - DRM_DEBUG("%s\n", __FUNCTION__); - dev_priv->page_flipping = 1; - dev_priv->current_page = 0; - dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; -} - -int i810_do_cleanup_pageflip( drm_device_t *dev ) -{ - drm_i810_private_t *dev_priv = dev->dev_private; - - DRM_DEBUG("%s\n", __FUNCTION__); - if (dev_priv->current_page != 0) - i810_dma_dispatch_flip( dev ); - - dev_priv->page_flipping = 0; - return 0; -} - -int i810_flip_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_private_t *dev_priv = dev->dev_private; - - DRM_DEBUG("%s\n", __FUNCTION__); - - if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { - DRM_ERROR("i810_flip_buf called without lock held\n"); - return -EINVAL; - } - - if (!dev_priv->page_flipping) - i810_do_init_pageflip( dev ); - - i810_dma_dispatch_flip( dev ); - return 0; -} - -static void i810_driver_pretakedown(drm_device_t *dev) -{ - i810_dma_cleanup( dev ); -} - -static void i810_driver_release(drm_device_t *dev, struct file *filp) -{ - i810_reclaim_buffers(dev, filp); -} - -static int i810_driver_dma_quiescent(drm_device_t *dev) -{ - i810_dma_quiescent( dev ); - return 0; -} - -void i810_driver_register_fns(drm_device_t *dev) -{ - dev->driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_DMA | DRIVER_DMA_QUEUE; - dev->dev_priv_size = sizeof(drm_i810_buf_priv_t); - dev->fn_tbl.pretakedown = i810_driver_pretakedown; - dev->fn_tbl.release = i810_driver_release; - dev->fn_tbl.dma_quiescent = i810_driver_dma_quiescent; - dev->fn_tbl.reclaim_buffers = i810_reclaim_buffers; - - /* i810 has 4 more counters */ - dev->counters += 4; - dev->types[6] = _DRM_STAT_IRQ; - dev->types[7] = _DRM_STAT_PRIMARY; - dev->types[8] = _DRM_STAT_SECONDARY; - dev->types[9] = _DRM_STAT_DMA; -} - |