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drm/i915: check for kms in dri1 ioctls

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Calling these when gem assumes full control of the hw won't end
in anything else than tears. So be a bit more paranoid here.

Just serves as documentation.

v2: Bail out with ENODEV as suggested by Chris Wilson.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-04-24 08:29:42 +02:00
parent 2e895b17d7
commit cd9d4e9f9f
2 changed files with 30 additions and 0 deletions
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18
drivers/gpu/drm/i915/i915_dma.c
View File

@ -239,6 +239,9 @@ static int i915_dma_init(struct drm_device *dev, void *data,
drm_i915_init_t *init = data;
int retcode = 0;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
switch (init->func) {
case I915_INIT_DMA:
retcode = i915_initialize(dev, init);
@ -581,6 +584,9 @@ static int i915_flush_ioctl(struct drm_device *dev, void *data,
{
int ret;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
mutex_lock(&dev->struct_mutex);
@ -601,6 +607,9 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
int ret;
struct drm_clip_rect *cliprects = NULL;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
if (!dev_priv->allow_batchbuffer) {
DRM_ERROR("Batchbuffer ioctl disabled\n");
return -EINVAL;
@ -658,6 +667,9 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
if (cmdbuf->num_cliprects < 0)
@ -714,6 +726,9 @@ static int i915_flip_bufs(struct drm_device *dev, void *data,
{
int ret;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
DRM_DEBUG_DRIVER("%s\n", __func__);
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
@ -850,6 +865,9 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
drm_i915_hws_addr_t *hws = data;
struct intel_ring_buffer *ring = LP_RING(dev_priv);
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
if (!I915_NEED_GFX_HWS(dev))
return -EINVAL;

12
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1612,6 +1612,9 @@ int i915_irq_emit(struct drm_device *dev, void *data,
drm_i915_irq_emit_t *emit = data;
int result;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
if (!dev_priv || !LP_RING(dev_priv)->virtual_start) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;
@ -1639,6 +1642,9 @@ int i915_irq_wait(struct drm_device *dev, void *data,
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_irq_wait_t *irqwait = data;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;
@ -1801,6 +1807,9 @@ int i915_vblank_pipe_set(struct drm_device *dev, void *data,
{
drm_i915_private_t *dev_priv = dev->dev_private;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;
@ -1815,6 +1824,9 @@ int i915_vblank_pipe_get(struct drm_device *dev, void *data,
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_vblank_pipe_t *pipe = data;
if (drm_core_check_feature(dev, DRIVER_MODESET))
return -ENODEV;
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;