| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 3345 | 54.21% | 4 | 5.00% |
| Linus Torvalds | 1776 | 28.78% | 17 | 21.25% |
| Dave Airlie | 556 | 9.01% | 25 | 31.25% |
| Eric Anholt | 253 | 4.10% | 4 | 5.00% |
| Daniel Vetter | 109 | 1.77% | 5 | 6.25% |
| Arnd Bergmann | 39 | 0.63% | 4 | 5.00% |
| Andrew Morton | 19 | 0.31% | 2 | 2.50% |
| Sam Ravnborg | 19 | 0.31% | 1 | 1.25% |
| Denys Vlasenko | 10 | 0.16% | 1 | 1.25% |
| Dan Carpenter | 9 | 0.15% | 2 | 2.50% |
| Márton Németh | 8 | 0.13% | 1 | 1.25% |
| Keith Packard | 5 | 0.08% | 1 | 1.25% |
| Pavel Emelyanov | 3 | 0.05% | 1 | 1.25% |
| Al Viro | 3 | 0.05% | 2 | 2.50% |
| Randy Dunlap | 3 | 0.05% | 1 | 1.25% |
| Thomas Zimmermann | 3 | 0.05% | 1 | 1.25% |
| David Herrmann | 2 | 0.03% | 1 | 1.25% |
| Arjan van de Ven | 2 | 0.03% | 2 | 2.50% |
| Tejun Heo | 2 | 0.03% | 1 | 1.25% |
| Joe Perches | 1 | 0.02% | 1 | 1.25% |
| Nicolas Kaiser | 1 | 0.02% | 1 | 1.25% |
| Damien Lespiau | 1 | 0.02% | 1 | 1.25% |
| Rob Clark | 1 | 0.02% | 1 | 1.25% |
| Total | 6170 | 80 |
/* 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 <linux/delay.h> #include <linux/mman.h> #include <linux/pci.h> #include <drm/drm_agpsupport.h> #include <drm/drm_device.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_ioctl.h> #include <drm/drm_irq.h> #include <drm/drm_print.h> #include <drm/i810_drm.h> #include "i810_drv.h" #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 struct drm_buf *i810_freelist_get(struct drm_device * dev) { struct drm_device_dma *dma = dev->dma; int i; int used; /* Linear search might not be the best solution */ for (i = 0; i < dma->buf_count; i++) { struct drm_buf *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(struct drm_device *dev, struct drm_buf *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 int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma) { struct drm_file *priv = filp->private_data; struct drm_device *dev; drm_i810_private_t *dev_priv; struct drm_buf *buf; drm_i810_buf_priv_t *buf_priv; dev = priv->minor->dev; dev_priv = dev->dev_private; buf = dev_priv->mmap_buffer; buf_priv = buf->dev_private; vma->vm_flags |= VM_DONTCOPY; buf_priv->currently_mapped = I810_BUF_MAPPED; if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, vma->vm_end - vma->vm_start, vma->vm_page_prot)) return -EAGAIN; return 0; } static const struct file_operations i810_buffer_fops = { .open = drm_open, .release = drm_release, .unlocked_ioctl = drm_ioctl, .mmap = i810_mmap_buffers, .compat_ioctl = drm_compat_ioctl, .llseek = noop_llseek, }; static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv) { struct drm_device *dev = file_priv->minor->dev; drm_i810_buf_priv_t *buf_priv = buf->dev_private; drm_i810_private_t *dev_priv = dev->dev_private; const struct file_operations *old_fops; int retcode = 0; if (buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL; /* This is all entirely broken */ old_fops = file_priv->filp->f_op; file_priv->filp->f_op = &i810_buffer_fops; dev_priv->mmap_buffer = buf; buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total, PROT_READ | PROT_WRITE, MAP_SHARED, buf->bus_address); dev_priv->mmap_buffer = NULL; file_priv->filp->f_op = old_fops; if (IS_ERR(buf_priv->virtual)) { /* Real error */ DRM_ERROR("mmap error\n"); retcode = PTR_ERR(buf_priv->virtual); buf_priv->virtual = NULL; } return retcode; } static int i810_unmap_buffer(struct drm_buf *buf) { drm_i810_buf_priv_t *buf_priv = buf->dev_private; int retcode = 0; if (buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL; retcode = vm_munmap((unsigned long)buf_priv->virtual, (size_t) buf->total); buf_priv->currently_mapped = I810_BUF_UNMAPPED; buf_priv->virtual = NULL; return retcode; } static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d, struct drm_file *file_priv) { struct drm_buf *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, file_priv); if (retcode) { i810_freelist_put(dev, buf); DRM_ERROR("mapbuf failed, retcode %d\n", retcode); return retcode; } buf->file_priv = file_priv; 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; } static int i810_dma_cleanup(struct drm_device *dev) { struct drm_device_dma *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_legacy_ioremapfree(&dev_priv->ring.map, dev); if (dev_priv->hw_status_page) { pci_free_consistent(dev->pdev, PAGE_SIZE, dev_priv->hw_status_page, dev_priv->dma_status_page); } kfree(dev->dev_private); dev->dev_private = NULL; for (i = 0; i < dma->buf_count; i++) { struct drm_buf *buf = dma->buflist[i]; drm_i810_buf_priv_t *buf_priv = buf->dev_private; if (buf_priv->kernel_virtual && buf->total) drm_legacy_ioremapfree(&buf_priv->map, dev); } } return 0; } static int i810_wait_ring(struct drm_device *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(struct drm_device *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(struct drm_device *dev, drm_i810_private_t *dev_priv) { struct drm_device_dma *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++) { struct drm_buf *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->map.offset = buf->bus_address; buf_priv->map.size = buf->total; buf_priv->map.type = _DRM_AGP; buf_priv->map.flags = 0; buf_priv->map.mtrr = 0; drm_legacy_ioremap(&buf_priv->map, dev); buf_priv->kernel_virtual = buf_priv->map.handle; } return 0; } static int i810_dma_initialize(struct drm_device *dev, drm_i810_private_t *dev_priv, drm_i810_init_t *init) { struct drm_map_list *r_list; memset(dev_priv, 0, sizeof(drm_i810_private_t)); list_for_each_entry(r_list, &dev->maplist, 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_legacy_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_token = init->buffers_offset; dev->agp_buffer_map = drm_legacy_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.map.offset = dev->agp->base + init->ring_start; dev_priv->ring.map.size = init->ring_size; dev_priv->ring.map.type = _DRM_AGP; dev_priv->ring.map.flags = 0; dev_priv->ring.map.mtrr = 0; drm_legacy_ioremap(&dev_priv->ring.map, dev); if (dev_priv->ring.map.handle == 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.virtual_start = dev_priv->ring.map.handle; 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_zalloc_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; } 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; } static int i810_dma_init(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_private_t *dev_priv; drm_i810_init_t *init = data; int retcode = 0; switch (init->func) { case I810_INIT_DMA_1_4: DRM_INFO("Using v1.4 init.\n"); dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL); 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; default: return -EINVAL; } 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(struct drm_device *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(struct drm_device *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(struct drm_device *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(struct drm_device *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("%x\n", 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(struct drm_device *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; struct drm_clip_rect *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(struct drm_device *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; struct drm_clip_rect *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(struct drm_device *dev, struct drm_buf *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; struct drm_clip_rect *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 < 0 || 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 *) ((char *) 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(struct drm_device *dev) { drm_i810_private_t *dev_priv = dev->dev_private; int pitch = dev_priv->pitch; RING_LOCALS; DRM_DEBUG("page=%d pfCurrentPage=%d\n", 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; } static void i810_dma_quiescent(struct drm_device *dev) { drm_i810_private_t *dev_priv = dev->dev_private; RING_LOCALS; 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(struct drm_device *dev) { drm_i810_private_t *dev_priv = dev->dev_private; struct drm_device_dma *dma = dev->dma; int i, ret = 0; RING_LOCALS; 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++) { struct drm_buf *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_driver_reclaim_buffers(struct drm_device *dev, struct drm_file *file_priv) { struct drm_device_dma *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++) { struct drm_buf *buf = dma->buflist[i]; drm_i810_buf_priv_t *buf_priv = buf->dev_private; if (buf->file_priv == file_priv && 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; } } } static int i810_flush_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { LOCK_TEST_WITH_RETURN(dev, file_priv); i810_flush_queue(dev); return 0; } static int i810_dma_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_device_dma *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 = data; LOCK_TEST_WITH_RETURN(dev, file_priv); DRM_DEBUG("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); sarea_priv->last_enqueue = dev_priv->counter - 1; sarea_priv->last_dispatch = (int)hw_status[5]; return 0; } static int i810_clear_bufs(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_clear_t *clear = data; LOCK_TEST_WITH_RETURN(dev, file_priv); /* 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; } static int i810_swap_bufs(struct drm_device *dev, void *data, struct drm_file *file_priv) { DRM_DEBUG("\n"); LOCK_TEST_WITH_RETURN(dev, file_priv); i810_dma_dispatch_swap(dev); return 0; } static int i810_getage(struct drm_device *dev, void *data, struct drm_file *file_priv) { 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; } static int i810_getbuf(struct drm_device *dev, void *data, struct drm_file *file_priv) { int retcode = 0; drm_i810_dma_t *d = data; 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; LOCK_TEST_WITH_RETURN(dev, file_priv); d->granted = 0; retcode = i810_dma_get_buffer(dev, d, file_priv); DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n", task_pid_nr(current), retcode, d->granted); sarea_priv->last_dispatch = (int)hw_status[5]; return retcode; } static int i810_copybuf(struct drm_device *dev, void *data, struct drm_file *file_priv) { /* Never copy - 2.4.x doesn't need it */ return 0; } static int i810_docopy(struct drm_device *dev, void *data, struct drm_file *file_priv) { /* Never copy - 2.4.x doesn't need it */ return 0; } static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *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 < 0 || used > 4 * 1024) used = 0; sarea_priv->dirty = 0x7f; DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used); dev_priv->counter++; DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter); 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 *) ((char *) 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(); } static int i810_dma_mc(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_device_dma *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 = data; LOCK_TEST_WITH_RETURN(dev, file_priv); 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); sarea_priv->last_enqueue = dev_priv->counter - 1; sarea_priv->last_dispatch = (int)hw_status[5]; return 0; } static int i810_rstatus(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; return (int)(((u32 *) (dev_priv->hw_status_page))[4]); } static int i810_ov0_info(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; drm_i810_overlay_t *ov = data; ov->offset = dev_priv->overlay_offset; ov->physical = dev_priv->overlay_physical; return 0; } static int i810_fstatus(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; LOCK_TEST_WITH_RETURN(dev, file_priv); return I810_READ(0x30008); } static int i810_ov0_flip(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private; LOCK_TEST_WITH_RETURN(dev, file_priv); /* 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(struct drm_device *dev) { drm_i810_private_t *dev_priv = dev->dev_private; DRM_DEBUG("\n"); dev_priv->page_flipping = 1; dev_priv->current_page = 0; dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; } static int i810_do_cleanup_pageflip(struct drm_device *dev) { drm_i810_private_t *dev_priv = dev->dev_private; DRM_DEBUG("\n"); if (dev_priv->current_page != 0) i810_dma_dispatch_flip(dev); dev_priv->page_flipping = 0; return 0; } static int i810_flip_bufs(struct drm_device *dev, void *data, struct drm_file *file_priv) { drm_i810_private_t *dev_priv = dev->dev_private; DRM_DEBUG("\n"); LOCK_TEST_WITH_RETURN(dev, file_priv); if (!dev_priv->page_flipping) i810_do_init_pageflip(dev); i810_dma_dispatch_flip(dev); return 0; } int i810_driver_load(struct drm_device *dev, unsigned long flags) { dev->agp = drm_agp_init(dev); if (dev->agp) { dev->agp->agp_mtrr = arch_phys_wc_add( dev->agp->agp_info.aper_base, dev->agp->agp_info.aper_size * 1024 * 1024); } /* Our userspace depends upon the agp mapping support. */ if (!dev->agp) return -EINVAL; pci_set_master(dev->pdev); return 0; } void i810_driver_lastclose(struct drm_device *dev) { i810_dma_cleanup(dev); } void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv) { if (dev->dev_private) { drm_i810_private_t *dev_priv = dev->dev_private; if (dev_priv->page_flipping) i810_do_cleanup_pageflip(dev); } if (file_priv->master && file_priv->master->lock.hw_lock) { drm_legacy_idlelock_take(&file_priv->master->lock); i810_driver_reclaim_buffers(dev, file_priv); drm_legacy_idlelock_release(&file_priv->master->lock); } else { /* master disappeared, clean up stuff anyway and hope nothing * goes wrong */ i810_driver_reclaim_buffers(dev, file_priv); } } int i810_driver_dma_quiescent(struct drm_device *dev) { i810_dma_quiescent(dev); return 0; } const struct drm_ioctl_desc i810_ioctls[] = { DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED), }; int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
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