summaryrefslogtreecommitdiff
path: root/shared-core
diff options
context:
space:
mode:
authorEric Anholt <eric@anholt.net>2008-06-10 15:30:23 -0700
committerEric Anholt <eric@anholt.net>2008-06-10 22:57:07 -0700
commit2150da5d1a57d25d0f4bc39bb6c883d410f586d1 (patch)
treed66c8062573491fb5caab64623e319e899262935 /shared-core
parent500c81d194115fb3c4b97d742519689478eeb4e8 (diff)
[gem] Manage the ringbuffer from the kernel in the GEM case.
This requires that the X Server use the execbuf interface for buffer submission, as it no longer has direct access to the ring. This is therefore a flag day for the gem interface. This also adds enter/leavevt ioctls for use by the X Server. These would get stubbed out in a modesetting implementation, but are required while in an environment where the device's state is only managed by the DRM while X has the VT.
Diffstat (limited to 'shared-core')
-rw-r--r--shared-core/i915_dma.c36
-rw-r--r--shared-core/i915_drm.h4
-rw-r--r--shared-core/i915_drv.h19
-rw-r--r--shared-core/i915_irq.c5
4 files changed, 45 insertions, 19 deletions
diff --git a/shared-core/i915_dma.c b/shared-core/i915_dma.c
index e5c6d0c4..4243b4e9 100644
--- a/shared-core/i915_dma.c
+++ b/shared-core/i915_dma.c
@@ -255,27 +255,27 @@ static int i915_initialize(struct drm_device * dev,
dev_priv->sarea_priv = NULL;
}
- 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) {
+ dev_priv->ring.Size = init->ring_size;
+ dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
- 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.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;
- drm_core_ioremap(&dev_priv->ring.map, dev);
+ 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;
- }
+ 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;
+ dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
+ }
dev_priv->cpp = init->cpp;
@@ -1188,6 +1188,8 @@ struct drm_ioctl_desc i915_ioctls[] = {
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_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH),
};
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
diff --git a/shared-core/i915_drm.h b/shared-core/i915_drm.h
index 0fa292d0..ce01640a 100644
--- a/shared-core/i915_drm.h
+++ b/shared-core/i915_drm.h
@@ -182,6 +182,8 @@ typedef struct drm_i915_sarea {
#define DRM_I915_GEM_UNPIN 0x16
#define DRM_I915_GEM_BUSY 0x17
#define DRM_I915_GEM_THROTTLE 0x18
+#define DRM_I915_GEM_ENTERVT 0x19
+#define DRM_I915_GEM_LEAVEVT 0x20
#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -207,6 +209,8 @@ typedef struct drm_i915_sarea {
#define DRM_IOCTL_I915_GEM_UNPIN DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
#define DRM_IOCTL_I915_GEM_BUSY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
#define DRM_IOCTL_I915_GEM_THROTTLE DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE)
+#define DRM_IOCTL_I915_GEM_ENTERVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT)
+#define DRM_IOCTL_I915_GEM_LEAVEVT DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT)
/* Asynchronous page flipping:
*/
diff --git a/shared-core/i915_drv.h b/shared-core/i915_drv.h
index 8acef0ca..3a22ae3c 100644
--- a/shared-core/i915_drv.h
+++ b/shared-core/i915_drv.h
@@ -74,14 +74,13 @@ struct drm_i915_validate_buffer;
typedef struct _drm_i915_ring_buffer {
int tail_mask;
- unsigned long Start;
- unsigned long End;
unsigned long Size;
u8 *virtual_start;
int head;
int tail;
int space;
drm_local_map_t map;
+ struct drm_gem_object *ring_obj;
} drm_i915_ring_buffer_t;
struct mem_block {
@@ -290,6 +289,16 @@ typedef struct drm_i915_private {
struct work_struct retire_task;
uint32_t next_gem_seqno;
+
+ /**
+ * Flag if the X Server, and thus DRM, is not currently in
+ * control of the device.
+ *
+ * This is set between LeaveVT and EnterVT. It needs to be
+ * replaced with a semaphore. It also needs to be
+ * transitioned away from for kernel modesetting.
+ */
+ int suspended;
} mm;
struct work_struct user_interrupt_task;
@@ -462,8 +471,14 @@ int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
int i915_gem_init_object(struct drm_gem_object *obj);
void i915_gem_free_object(struct drm_gem_object *obj);
+int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
+void i915_gem_object_unpin(struct drm_gem_object *obj);
int i915_gem_set_domain(struct drm_gem_object *obj,
struct drm_file *file_priv,
uint32_t read_domains,
diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c
index 37d85f40..077af1ab 100644
--- a/shared-core/i915_irq.c
+++ b/shared-core/i915_irq.c
@@ -575,6 +575,11 @@ int i915_wait_irq(struct drm_device * dev, int irq_nr)
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
int ret = 0;
+ if (!dev_priv) {
+ DRM_ERROR("called with no initialization\n");
+ return -EINVAL;
+ }
+
DRM_DEBUG("irq_nr=%d breadcrumb=%d\n", irq_nr,
READ_BREADCRUMB(dev_priv));