diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 336 |
1 files changed, 228 insertions, 108 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 88974342933..db34780edbb 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -40,40 +40,96 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller) { drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_ring_buffer_t *ring = &(dev_priv->ring); - u32 last_head = I915_READ(LP_RING + RING_HEAD) & HEAD_ADDR; + u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD; + u32 last_acthd = I915_READ(acthd_reg); + u32 acthd; + u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR; int i; - for (i = 0; i < 10000; i++) { - ring->head = I915_READ(LP_RING + RING_HEAD) & HEAD_ADDR; + for (i = 0; i < 100000; i++) { + ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR; + acthd = I915_READ(acthd_reg); ring->space = ring->head - (ring->tail + 8); if (ring->space < 0) ring->space += ring->Size; if (ring->space >= n) return 0; - dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; + if (dev_priv->sarea_priv) + dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; if (ring->head != last_head) i = 0; + if (acthd != last_acthd) + i = 0; last_head = ring->head; + last_acthd = acthd; + msleep_interruptible(10); + } return -EBUSY; } +/** + * Sets up the hardware status page for devices that need a physical address + * in the register. + */ +static int i915_init_phys_hws(struct drm_device *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + /* Program Hardware Status Page */ + dev_priv->status_page_dmah = + drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff); + + if (!dev_priv->status_page_dmah) { + DRM_ERROR("Can not allocate hardware status page\n"); + return -ENOMEM; + } + dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr; + dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr; + + memset(dev_priv->hw_status_page, 0, PAGE_SIZE); + + I915_WRITE(HWS_PGA, dev_priv->dma_status_page); + DRM_DEBUG("Enabled hardware status page\n"); + return 0; +} + +/** + * Frees the hardware status page, whether it's a physical address or a virtual + * address set up by the X Server. + */ +static void i915_free_hws(struct drm_device *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + if (dev_priv->status_page_dmah) { + drm_pci_free(dev, dev_priv->status_page_dmah); + dev_priv->status_page_dmah = NULL; + } + + if (dev_priv->status_gfx_addr) { + dev_priv->status_gfx_addr = 0; + drm_core_ioremapfree(&dev_priv->hws_map, dev); + } + + /* Need to rewrite hardware status page */ + I915_WRITE(HWS_PGA, 0x1ffff000); +} + void i915_kernel_lost_context(struct drm_device * dev) { drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_ring_buffer_t *ring = &(dev_priv->ring); - ring->head = I915_READ(LP_RING + RING_HEAD) & HEAD_ADDR; - ring->tail = I915_READ(LP_RING + RING_TAIL) & TAIL_ADDR; + ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR; + ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR; ring->space = ring->head - (ring->tail + 8); if (ring->space < 0) ring->space += ring->Size; - if (ring->head == ring->tail) + if (ring->head == ring->tail && dev_priv->sarea_priv) dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY; } @@ -84,28 +140,19 @@ static int i915_dma_cleanup(struct drm_device * dev) * may not have been called from userspace and after dev_private * is freed, it's too late. */ - if (dev->irq) + if (dev->irq_enabled) drm_irq_uninstall(dev); if (dev_priv->ring.virtual_start) { drm_core_ioremapfree(&dev_priv->ring.map, dev); - dev_priv->ring.virtual_start = 0; - dev_priv->ring.map.handle = 0; + dev_priv->ring.virtual_start = NULL; + dev_priv->ring.map.handle = NULL; dev_priv->ring.map.size = 0; } - if (dev_priv->status_page_dmah) { - drm_pci_free(dev, dev_priv->status_page_dmah); - dev_priv->status_page_dmah = NULL; - /* Need to rewrite hardware status page */ - I915_WRITE(0x02080, 0x1ffff000); - } - - if (dev_priv->status_gfx_addr) { - dev_priv->status_gfx_addr = 0; - drm_core_ioremapfree(&dev_priv->hws_map, dev); - I915_WRITE(0x2080, 0x1ffff000); - } + /* Clear the HWS virtual address at teardown */ + if (I915_NEED_GFX_HWS(dev)) + i915_free_hws(dev); return 0; } @@ -121,34 +168,34 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init) return -EINVAL; } - dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset); - if (!dev_priv->mmio_map) { - i915_dma_cleanup(dev); - DRM_ERROR("can not find mmio map!\n"); - return -EINVAL; - } - dev_priv->sarea_priv = (drm_i915_sarea_t *) ((u8 *) dev_priv->sarea->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.tail_mask = dev_priv->ring.Size - 1; + if (init->ring_size != 0) { + if (dev_priv->ring.ring_obj != NULL) { + i915_dma_cleanup(dev); + DRM_ERROR("Client tried to initialize ringbuffer in " + "GEM mode\n"); + return -EINVAL; + } - dev_priv->ring.map.offset = init->ring_start; - dev_priv->ring.map.size = init->ring_size; - dev_priv->ring.map.type = 0; - dev_priv->ring.map.flags = 0; - dev_priv->ring.map.mtrr = 0; + dev_priv->ring.Size = init->ring_size; + dev_priv->ring.tail_mask = dev_priv->ring.Size - 1; - drm_core_ioremap(&dev_priv->ring.map, dev); + dev_priv->ring.map.offset = init->ring_start; + dev_priv->ring.map.size = init->ring_size; + dev_priv->ring.map.type = 0; + dev_priv->ring.map.flags = 0; + dev_priv->ring.map.mtrr = 0; - if (dev_priv->ring.map.handle == NULL) { - i915_dma_cleanup(dev); - DRM_ERROR("can not ioremap virtual address for" - " ring buffer\n"); - return -ENOMEM; + drm_core_ioremap(&dev_priv->ring.map, dev); + + if (dev_priv->ring.map.handle == NULL) { + i915_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; @@ -159,34 +206,10 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init) dev_priv->current_page = 0; dev_priv->sarea_priv->pf_current_page = dev_priv->current_page; - /* We are using separate values as placeholders for mechanisms for - * private backbuffer/depthbuffer usage. - */ - dev_priv->use_mi_batchbuffer_start = 0; - if (IS_I965G(dev)) /* 965 doesn't support older method */ - dev_priv->use_mi_batchbuffer_start = 1; - /* Allow hardware batchbuffers unless told otherwise. */ dev_priv->allow_batchbuffer = 1; - /* Program Hardware Status Page */ - if (!I915_NEED_GFX_HWS(dev)) { - dev_priv->status_page_dmah = - drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff); - - if (!dev_priv->status_page_dmah) { - i915_dma_cleanup(dev); - DRM_ERROR("Can not allocate hardware status page\n"); - return -ENOMEM; - } - dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr; - dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr; - - memset(dev_priv->hw_status_page, 0, PAGE_SIZE); - I915_WRITE(0x02080, dev_priv->dma_status_page); - } - DRM_DEBUG("Enabled hardware status page\n"); return 0; } @@ -201,11 +224,6 @@ static int i915_dma_resume(struct drm_device * dev) return -EINVAL; } - if (!dev_priv->mmio_map) { - DRM_ERROR("can not find mmio map!\n"); - return -EINVAL; - } - if (dev_priv->ring.map.handle == NULL) { DRM_ERROR("can not ioremap virtual address for" " ring buffer\n"); @@ -220,9 +238,9 @@ static int i915_dma_resume(struct drm_device * dev) DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page); if (dev_priv->status_gfx_addr != 0) - I915_WRITE(0x02080, dev_priv->status_gfx_addr); + I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr); else - I915_WRITE(0x02080, dev_priv->dma_status_page); + I915_WRITE(HWS_PGA, dev_priv->dma_status_page); DRM_DEBUG("Enabled hardware status page\n"); return 0; @@ -367,9 +385,10 @@ static int i915_emit_cmds(struct drm_device * dev, int __user * buffer, int dwor return 0; } -static int i915_emit_box(struct drm_device * dev, - struct drm_clip_rect __user * boxes, - int i, int DR1, int DR4) +int +i915_emit_box(struct drm_device *dev, + struct drm_clip_rect __user *boxes, + int i, int DR1, int DR4) { drm_i915_private_t *dev_priv = dev->dev_private; struct drm_clip_rect box; @@ -415,14 +434,15 @@ static void i915_emit_breadcrumb(struct drm_device *dev) drm_i915_private_t *dev_priv = dev->dev_private; RING_LOCALS; - dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter; - + dev_priv->counter++; if (dev_priv->counter > 0x7FFFFFFFUL) - dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1; + dev_priv->counter = 0; + if (dev_priv->sarea_priv) + dev_priv->sarea_priv->last_enqueue = dev_priv->counter; BEGIN_LP_RING(4); - OUT_RING(CMD_STORE_DWORD_IDX); - OUT_RING(20); + OUT_RING(MI_STORE_DWORD_INDEX); + OUT_RING(5 << MI_STORE_DWORD_INDEX_SHIFT); OUT_RING(dev_priv->counter); OUT_RING(0); ADVANCE_LP_RING(); @@ -486,7 +506,7 @@ static int i915_dispatch_batchbuffer(struct drm_device * dev, return ret; } - if (dev_priv->use_mi_batchbuffer_start) { + if (!IS_I830(dev) && !IS_845G(dev)) { BEGIN_LP_RING(2); if (IS_I965G(dev)) { OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965); @@ -516,15 +536,18 @@ static int i915_dispatch_flip(struct drm_device * dev) drm_i915_private_t *dev_priv = dev->dev_private; RING_LOCALS; + if (!dev_priv->sarea_priv) + return -EINVAL; + DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n", - __FUNCTION__, + __func__, dev_priv->current_page, dev_priv->sarea_priv->pf_current_page); i915_kernel_lost_context(dev); BEGIN_LP_RING(2); - OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE); + OUT_RING(MI_FLUSH | MI_READ_FLUSH); OUT_RING(0); ADVANCE_LP_RING(); @@ -549,8 +572,8 @@ static int i915_dispatch_flip(struct drm_device * dev) dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; BEGIN_LP_RING(4); - OUT_RING(CMD_STORE_DWORD_IDX); - OUT_RING(20); + OUT_RING(MI_STORE_DWORD_INDEX); + OUT_RING(5 << MI_STORE_DWORD_INDEX_SHIFT); OUT_RING(dev_priv->counter); OUT_RING(0); ADVANCE_LP_RING(); @@ -570,9 +593,15 @@ static int i915_quiescent(struct drm_device * dev) static int i915_flush_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - LOCK_TEST_WITH_RETURN(dev, file_priv); + int ret; - return i915_quiescent(dev); + RING_LOCK_TEST_WITH_RETURN(dev, file_priv); + + mutex_lock(&dev->struct_mutex); + ret = i915_quiescent(dev); + mutex_unlock(&dev->struct_mutex); + + return ret; } static int i915_batchbuffer(struct drm_device *dev, void *data, @@ -593,16 +622,19 @@ static int i915_batchbuffer(struct drm_device *dev, void *data, DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n", batch->start, batch->used, batch->num_cliprects); - LOCK_TEST_WITH_RETURN(dev, file_priv); + RING_LOCK_TEST_WITH_RETURN(dev, file_priv); if (batch->num_cliprects && DRM_VERIFYAREA_READ(batch->cliprects, batch->num_cliprects * sizeof(struct drm_clip_rect))) return -EFAULT; + mutex_lock(&dev->struct_mutex); ret = i915_dispatch_batchbuffer(dev, batch); + mutex_unlock(&dev->struct_mutex); - sarea_priv->last_dispatch = (int)hw_status[5]; + if (sarea_priv) + sarea_priv->last_dispatch = (int)hw_status[5]; return ret; } @@ -619,7 +651,7 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data, DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n", cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects); - LOCK_TEST_WITH_RETURN(dev, file_priv); + RING_LOCK_TEST_WITH_RETURN(dev, file_priv); if (cmdbuf->num_cliprects && DRM_VERIFYAREA_READ(cmdbuf->cliprects, @@ -629,24 +661,33 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data, return -EFAULT; } + mutex_lock(&dev->struct_mutex); ret = i915_dispatch_cmdbuffer(dev, cmdbuf); + mutex_unlock(&dev->struct_mutex); if (ret) { DRM_ERROR("i915_dispatch_cmdbuffer failed\n"); return ret; } - sarea_priv->last_dispatch = (int)hw_status[5]; + if (sarea_priv) + sarea_priv->last_dispatch = (int)hw_status[5]; return 0; } static int i915_flip_bufs(struct drm_device *dev, void *data, struct drm_file *file_priv) { - DRM_DEBUG("%s\n", __FUNCTION__); + int ret; + + DRM_DEBUG("%s\n", __func__); + + RING_LOCK_TEST_WITH_RETURN(dev, file_priv); - LOCK_TEST_WITH_RETURN(dev, file_priv); + mutex_lock(&dev->struct_mutex); + ret = i915_dispatch_flip(dev); + mutex_unlock(&dev->struct_mutex); - return i915_dispatch_flip(dev); + return ret; } static int i915_getparam(struct drm_device *dev, void *data, @@ -663,7 +704,7 @@ static int i915_getparam(struct drm_device *dev, void *data, switch (param->param) { case I915_PARAM_IRQ_ACTIVE: - value = dev->irq ? 1 : 0; + value = dev->pdev->irq ? 1 : 0; break; case I915_PARAM_ALLOW_BATCHBUFFER: value = dev_priv->allow_batchbuffer ? 1 : 0; @@ -671,6 +712,12 @@ static int i915_getparam(struct drm_device *dev, void *data, case I915_PARAM_LAST_DISPATCH: value = READ_BREADCRUMB(dev_priv); break; + case I915_PARAM_CHIPSET_ID: + value = dev->pci_device; + break; + case I915_PARAM_HAS_GEM: + value = 1; + break; default: DRM_ERROR("Unknown parameter %d\n", param->param); return -EINVAL; @@ -697,8 +744,6 @@ static int i915_setparam(struct drm_device *dev, void *data, switch (param->param) { case I915_SETPARAM_USE_MI_BATCHBUFFER_START: - if (!IS_I965G(dev)) - dev_priv->use_mi_batchbuffer_start = param->value; break; case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY: dev_priv->tex_lru_log_granularity = param->value; @@ -749,8 +794,8 @@ static int i915_set_status_page(struct drm_device *dev, void *data, dev_priv->hw_status_page = dev_priv->hws_map.handle; memset(dev_priv->hw_status_page, 0, PAGE_SIZE); - I915_WRITE(0x02080, dev_priv->status_gfx_addr); - DRM_DEBUG("load hws 0x2080 with gfx mem 0x%x\n", + I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr); + DRM_DEBUG("load hws HWS_PGA with gfx mem 0x%x\n", dev_priv->status_gfx_addr); DRM_DEBUG("load hws at %p\n", dev_priv->hw_status_page); return 0; @@ -776,14 +821,38 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) memset(dev_priv, 0, sizeof(drm_i915_private_t)); dev->dev_private = (void *)dev_priv; + dev_priv->dev = dev; /* Add register map (needed for suspend/resume) */ base = drm_get_resource_start(dev, mmio_bar); size = drm_get_resource_len(dev, mmio_bar); - ret = drm_addmap(dev, base, size, _DRM_REGISTERS, - _DRM_KERNEL | _DRM_DRIVER, - &dev_priv->mmio_map); + dev_priv->regs = ioremap(base, size); + + i915_gem_load(dev); + + /* Init HWS */ + if (!I915_NEED_GFX_HWS(dev)) { + ret = i915_init_phys_hws(dev); + if (ret != 0) + return ret; + } + + /* On the 945G/GM, the chipset reports the MSI capability on the + * integrated graphics even though the support isn't actually there + * according to the published specs. It doesn't appear to function + * correctly in testing on 945G. + * This may be a side effect of MSI having been made available for PEG + * and the registers being closely associated. + */ + if (!IS_I945G(dev) && !IS_I945GM(dev)) + if (pci_enable_msi(dev->pdev)) + DRM_ERROR("failed to enable MSI\n"); + + intel_opregion_init(dev); + + spin_lock_init(&dev_priv->user_irq_lock); + return ret; } @@ -791,8 +860,15 @@ int i915_driver_unload(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - if (dev_priv->mmio_map) - drm_rmmap(dev, dev_priv->mmio_map); + if (dev->pdev->msi_enabled) + pci_disable_msi(dev->pdev); + + i915_free_hws(dev); + + if (dev_priv->regs != NULL) + iounmap(dev_priv->regs); + + intel_opregion_free(dev); drm_free(dev->dev_private, sizeof(drm_i915_private_t), DRM_MEM_DRIVER); @@ -800,6 +876,25 @@ int i915_driver_unload(struct drm_device *dev) return 0; } +int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv) +{ + struct drm_i915_file_private *i915_file_priv; + + DRM_DEBUG("\n"); + i915_file_priv = (struct drm_i915_file_private *) + drm_alloc(sizeof(*i915_file_priv), DRM_MEM_FILES); + + if (!i915_file_priv) + return -ENOMEM; + + file_priv->driver_priv = i915_file_priv; + + i915_file_priv->mm.last_gem_seqno = 0; + i915_file_priv->mm.last_gem_throttle_seqno = 0; + + return 0; +} + void i915_driver_lastclose(struct drm_device * dev) { drm_i915_private_t *dev_priv = dev->dev_private; @@ -807,6 +902,8 @@ void i915_driver_lastclose(struct drm_device * dev) if (!dev_priv) return; + i915_gem_lastclose(dev); + if (dev_priv->agp_heap) i915_mem_takedown(&(dev_priv->agp_heap)); @@ -819,6 +916,13 @@ void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv) i915_mem_release(dev, file_priv, dev_priv->agp_heap); } +void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv) +{ + struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv; + + drm_free(i915_file_priv, sizeof(*i915_file_priv), DRM_MEM_FILES); +} + struct drm_ioctl_desc i915_ioctls[] = { DRM_IOCTL_DEF(DRM_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), DRM_IOCTL_DEF(DRM_I915_FLUSH, i915_flush_ioctl, DRM_AUTH), @@ -836,7 +940,23 @@ struct drm_ioctl_desc i915_ioctls[] = { DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE, i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ), DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH ), DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH), - DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH), + DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH), + DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH), + DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH), + DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_MMAP, i915_gem_mmap_ioctl, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0), + DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0), }; int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls); |