From de227f5f32775d86e5c780a7cffdd2e08574f7fb Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 25 Jan 2006 15:31:43 +1100 Subject: drm: i915 patches from Tungsten Graphics Fix CMDBUFFER path, add heap destroy and flesh out sarea for rotation (Tungsten Graphics) From: Alan Hourihane Signed-off-by: Dave Airlie --- drivers/char/drm/i915_dma.c | 42 ++++++++++++++++++++++++++++++------------ 1 file changed, 30 insertions(+), 12 deletions(-) (limited to 'drivers/char/drm/i915_dma.c') diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c index 9140703da1b..1ff4c7ca0bf 100644 --- a/drivers/char/drm/i915_dma.c +++ b/drivers/char/drm/i915_dma.c @@ -344,18 +344,20 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) int i; RING_LOCALS; + if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8) + return DRM_ERR(EINVAL); + + BEGIN_LP_RING(((dwords+1)&~1)); + for (i = 0; i < dwords;) { int cmd, sz; if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd))) return DRM_ERR(EINVAL); -/* printk("%d/%d ", i, dwords); */ - if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords) return DRM_ERR(EINVAL); - BEGIN_LP_RING(sz); OUT_RING(cmd); while (++i, --sz) { @@ -365,9 +367,13 @@ static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords) } OUT_RING(cmd); } - ADVANCE_LP_RING(); } + if (dwords & 1) + OUT_RING(0); + + ADVANCE_LP_RING(); + return 0; } @@ -401,6 +407,21 @@ static int i915_emit_box(drm_device_t * dev, return 0; } +static void i915_emit_breadcrumb(drm_device_t *dev) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + RING_LOCALS; + + dev_priv->sarea_priv->last_enqueue = dev_priv->counter++; + + BEGIN_LP_RING(4); + OUT_RING(CMD_STORE_DWORD_IDX); + OUT_RING(20); + OUT_RING(dev_priv->counter); + OUT_RING(0); + ADVANCE_LP_RING(); +} + static int i915_dispatch_cmdbuffer(drm_device_t * dev, drm_i915_cmdbuffer_t * cmd) { @@ -429,6 +450,7 @@ static int i915_dispatch_cmdbuffer(drm_device_t * dev, return ret; } + i915_emit_breadcrumb(dev); return 0; } @@ -475,12 +497,7 @@ static int i915_dispatch_batchbuffer(drm_device_t * 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(dev_priv->counter); - OUT_RING(0); - ADVANCE_LP_RING(); + i915_emit_breadcrumb(dev); return 0; } @@ -657,7 +674,7 @@ static int i915_getparam(DRM_IOCTL_ARGS) value = READ_BREADCRUMB(dev_priv); break; default: - DRM_ERROR("Unkown parameter %d\n", param.param); + DRM_ERROR("Unknown parameter %d\n", param.param); return DRM_ERR(EINVAL); } @@ -742,7 +759,8 @@ drm_ioctl_desc_t i915_ioctls[] = { [DRM_IOCTL_NR(DRM_I915_ALLOC)] = {i915_mem_alloc, DRM_AUTH}, [DRM_IOCTL_NR(DRM_I915_FREE)] = {i915_mem_free, DRM_AUTH}, [DRM_IOCTL_NR(DRM_I915_INIT_HEAP)] = {i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY}, - [DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, DRM_AUTH} + [DRM_IOCTL_NR(DRM_I915_CMDBUFFER)] = {i915_cmdbuffer, DRM_AUTH}, + [DRM_IOCTL_NR(DRM_I915_DESTROY_HEAP)] = { i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY } }; int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls); -- cgit v1.2.3-70-g09d2