if (hwversion == 0)
return false;
- if (hwversion < SVGA3D_HWVERSION_WS65_B1)
+ if (hwversion < SVGA3D_HWVERSION_WS8_B1)
+ return false;
+
+ /* Non-Screen Object path does not support surfaces */
+ if (!dev_priv->sou_priv)
return false;
return true;
uint32_t max;
uint32_t min;
uint32_t dummy;
- int ret;
fifo->static_buffer_size = VMWGFX_FIFO_STATIC_SIZE;
fifo->static_buffer = vmalloc(fifo->static_buffer_size);
if (unlikely(fifo->static_buffer == NULL))
return -ENOMEM;
- fifo->last_buffer_size = VMWGFX_FIFO_STATIC_SIZE;
- fifo->last_data_size = 0;
- fifo->last_buffer_add = false;
- fifo->last_buffer = vmalloc(fifo->last_buffer_size);
- if (unlikely(fifo->last_buffer == NULL)) {
- ret = -ENOMEM;
- goto out_err;
- }
-
fifo->dynamic_buffer = NULL;
fifo->reserved_size = 0;
fifo->using_bounce_buffer = false;
(unsigned int) min,
(unsigned int) fifo->capabilities);
- atomic_set(&dev_priv->fence_seq, dev_priv->last_read_sequence);
- iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE);
- vmw_fence_queue_init(&fifo->fence_queue);
+ atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
+ iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
+ vmw_marker_queue_init(&fifo->marker_queue);
return vmw_fifo_send_fence(dev_priv, &dummy);
-out_err:
- vfree(fifo->static_buffer);
- fifo->static_buffer = NULL;
- return ret;
}
void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason)
while (vmw_read(dev_priv, SVGA_REG_BUSY) != 0)
vmw_write(dev_priv, SVGA_REG_SYNC, SVGA_SYNC_GENERIC);
- dev_priv->last_read_sequence = ioread32(fifo_mem + SVGA_FIFO_FENCE);
+ dev_priv->last_read_seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE);
vmw_write(dev_priv, SVGA_REG_CONFIG_DONE,
dev_priv->config_done_state);
dev_priv->traces_state);
mutex_unlock(&dev_priv->hw_mutex);
- vmw_fence_queue_takedown(&fifo->fence_queue);
-
- if (likely(fifo->last_buffer != NULL)) {
- vfree(fifo->last_buffer);
- fifo->last_buffer = NULL;
- }
+ vmw_marker_queue_takedown(&fifo->marker_queue);
if (likely(fifo->static_buffer != NULL)) {
vfree(fifo->static_buffer);
return ret;
}
+/**
+ * Reserve @bytes number of bytes in the fifo.
+ *
+ * This function will return NULL (error) on two conditions:
+ * If it timeouts waiting for fifo space, or if @bytes is larger than the
+ * available fifo space.
+ *
+ * Returns:
+ * Pointer to the fifo, or null on error (possible hardware hang).
+ */
void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes)
{
struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
mutex_unlock(&fifo_state->fifo_mutex);
}
-int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *sequence)
+int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
{
struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
struct svga_fifo_cmd_fence *cmd_fence;
fm = vmw_fifo_reserve(dev_priv, bytes);
if (unlikely(fm == NULL)) {
- *sequence = atomic_read(&dev_priv->fence_seq);
+ *seqno = atomic_read(&dev_priv->marker_seq);
ret = -ENOMEM;
- (void)vmw_fallback_wait(dev_priv, false, true, *sequence,
+ (void)vmw_fallback_wait(dev_priv, false, true, *seqno,
false, 3*HZ);
goto out_err;
}
do {
- *sequence = atomic_add_return(1, &dev_priv->fence_seq);
- } while (*sequence == 0);
+ *seqno = atomic_add_return(1, &dev_priv->marker_seq);
+ } while (*seqno == 0);
if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
cmd_fence = (struct svga_fifo_cmd_fence *)
((unsigned long)fm + sizeof(__le32));
- iowrite32(*sequence, &cmd_fence->fence);
- fifo_state->last_buffer_add = true;
+ iowrite32(*seqno, &cmd_fence->fence);
vmw_fifo_commit(dev_priv, bytes);
- fifo_state->last_buffer_add = false;
- (void) vmw_fence_push(&fifo_state->fence_queue, *sequence);
- vmw_update_sequence(dev_priv, fifo_state);
+ (void) vmw_marker_push(&fifo_state->marker_queue, *seqno);
+ vmw_update_seqno(dev_priv, fifo_state);
out_err:
return ret;
}
-
-/**
- * Map the first page of the FIFO read-only to user-space.
- */
-
-static int vmw_fifo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
- int ret;
- unsigned long address = (unsigned long)vmf->virtual_address;
-
- if (address != vma->vm_start)
- return VM_FAULT_SIGBUS;
-
- ret = vm_insert_pfn(vma, address, vma->vm_pgoff);
- if (likely(ret == -EBUSY || ret == 0))
- return VM_FAULT_NOPAGE;
- else if (ret == -ENOMEM)
- return VM_FAULT_OOM;
-
- return VM_FAULT_SIGBUS;
-}
-
-static struct vm_operations_struct vmw_fifo_vm_ops = {
- .fault = vmw_fifo_vm_fault,
- .open = NULL,
- .close = NULL
-};
-
-int vmw_fifo_mmap(struct file *filp, struct vm_area_struct *vma)
-{
- struct drm_file *file_priv;
- struct vmw_private *dev_priv;
-
- file_priv = filp->private_data;
- dev_priv = vmw_priv(file_priv->minor->dev);
-
- if (vma->vm_pgoff != (dev_priv->mmio_start >> PAGE_SHIFT) ||
- (vma->vm_end - vma->vm_start) != PAGE_SIZE)
- return -EINVAL;
-
- vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
- vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_SHARED;
- vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
- vma->vm_page_prot = ttm_io_prot(TTM_PL_FLAG_UNCACHED,
- vma->vm_page_prot);
- vma->vm_ops = &vmw_fifo_vm_ops;
- return 0;
-}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff