*/
#include "msm_drv.h"
+#include "msm_gpu.h"
#include <mach/iommu.h>
{
struct msm_drm_private *priv = dev->dev_private;
struct msm_kms *kms = priv->kms;
+ struct msm_gpu *gpu = priv->gpu;
drm_kms_helper_poll_fini(dev);
drm_mode_config_cleanup(dev);
kms->funcs->destroy(kms);
}
+ if (gpu) {
+ mutex_lock(&dev->struct_mutex);
+ gpu->funcs->pm_suspend(gpu);
+ gpu->funcs->destroy(gpu);
+ mutex_unlock(&dev->struct_mutex);
+ }
dev->dev_private = NULL;
dev->dev_private = priv;
priv->wq = alloc_ordered_workqueue("msm", 0);
+ init_waitqueue_head(&priv->fence_event);
INIT_LIST_HEAD(&priv->inactive_list);
return ret;
}
+static void load_gpu(struct drm_device *dev)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ struct msm_gpu *gpu;
+
+ if (priv->gpu)
+ return;
+
+ mutex_lock(&dev->struct_mutex);
+ gpu = a3xx_gpu_init(dev);
+ if (IS_ERR(gpu)) {
+ dev_warn(dev->dev, "failed to load a3xx gpu\n");
+ gpu = NULL;
+ /* not fatal */
+ }
+ mutex_unlock(&dev->struct_mutex);
+
+ if (gpu) {
+ int ret;
+ gpu->funcs->pm_resume(gpu);
+ ret = gpu->funcs->hw_init(gpu);
+ if (ret) {
+ dev_err(dev->dev, "gpu hw init failed: %d\n", ret);
+ gpu->funcs->destroy(gpu);
+ gpu = NULL;
+ }
+ }
+
+ priv->gpu = gpu;
+}
+
+static int msm_open(struct drm_device *dev, struct drm_file *file)
+{
+ struct msm_file_private *ctx;
+
+ /* For now, load gpu on open.. to avoid the requirement of having
+ * firmware in the initrd.
+ */
+ load_gpu(dev);
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ file->driver_priv = ctx;
+
+ return 0;
+}
+
static void msm_preclose(struct drm_device *dev, struct drm_file *file)
{
struct msm_drm_private *priv = dev->dev_private;
+ struct msm_file_private *ctx = file->driver_priv;
struct msm_kms *kms = priv->kms;
+
if (kms)
kms->funcs->preclose(kms, file);
+
+ mutex_lock(&dev->struct_mutex);
+ if (ctx == priv->lastctx)
+ priv->lastctx = NULL;
+ mutex_unlock(&dev->struct_mutex);
+
+ kfree(ctx);
}
static void msm_lastclose(struct drm_device *dev)
*/
#ifdef CONFIG_DEBUG_FS
+static int msm_gpu_show(struct drm_device *dev, struct seq_file *m)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ struct msm_gpu *gpu = priv->gpu;
+
+ if (gpu) {
+ seq_printf(m, "%s Status:\n", gpu->name);
+ gpu->funcs->show(gpu, m);
+ }
+
+ return 0;
+}
+
static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
{
struct msm_drm_private *priv = dev->dev_private;
+ struct msm_gpu *gpu = priv->gpu;
+
+ if (gpu) {
+ seq_printf(m, "Active Objects (%s):\n", gpu->name);
+ msm_gem_describe_objects(&gpu->active_list, m);
+ }
- seq_printf(m, "All Objects:\n");
+ seq_printf(m, "Inactive Objects:\n");
msm_gem_describe_objects(&priv->inactive_list, m);
return 0;
}
static struct drm_info_list msm_debugfs_list[] = {
+ {"gpu", show_locked, 0, msm_gpu_show},
{"gem", show_locked, 0, msm_gem_show},
{ "mm", show_locked, 0, msm_mm_show },
{ "fb", show_locked, 0, msm_fb_show },
}
#endif
+/*
+ * Fences:
+ */
+
+int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence,
+ struct timespec *timeout)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
+ unsigned long start_jiffies = jiffies;
+ unsigned long remaining_jiffies;
+ int ret;
+
+ if (time_after(start_jiffies, timeout_jiffies))
+ remaining_jiffies = 0;
+ else
+ remaining_jiffies = timeout_jiffies - start_jiffies;
+
+ ret = wait_event_interruptible_timeout(priv->fence_event,
+ priv->completed_fence >= fence,
+ remaining_jiffies);
+ if (ret == 0) {
+ DBG("timeout waiting for fence: %u (completed: %u)",
+ fence, priv->completed_fence);
+ ret = -ETIMEDOUT;
+ } else if (ret != -ERESTARTSYS) {
+ ret = 0;
+ }
+
+ return ret;
+}
+
+/* call under struct_mutex */
+void msm_update_fence(struct drm_device *dev, uint32_t fence)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+
+ if (fence > priv->completed_fence) {
+ priv->completed_fence = fence;
+ wake_up_all(&priv->fence_event);
+ }
+}
+
+/*
+ * DRM ioctls:
+ */
+
+static int msm_ioctl_get_param(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct msm_drm_private *priv = dev->dev_private;
+ struct drm_msm_param *args = data;
+ struct msm_gpu *gpu;
+
+ /* for now, we just have 3d pipe.. eventually this would need to
+ * be more clever to dispatch to appropriate gpu module:
+ */
+ if (args->pipe != MSM_PIPE_3D0)
+ return -EINVAL;
+
+ gpu = priv->gpu;
+
+ if (!gpu)
+ return -ENXIO;
+
+ return gpu->funcs->get_param(gpu, args->param, &args->value);
+}
+
+static int msm_ioctl_gem_new(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_msm_gem_new *args = data;
+ return msm_gem_new_handle(dev, file, args->size,
+ args->flags, &args->handle);
+}
+
+#define TS(t) ((struct timespec){ .tv_sec = (t).tv_sec, .tv_nsec = (t).tv_nsec })
+
+static int msm_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_msm_gem_cpu_prep *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+
+ obj = drm_gem_object_lookup(dev, file, args->handle);
+ if (!obj)
+ return -ENOENT;
+
+ ret = msm_gem_cpu_prep(obj, args->op, &TS(args->timeout));
+
+ drm_gem_object_unreference_unlocked(obj);
+
+ return ret;
+}
+
+static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_msm_gem_cpu_fini *args = data;
+ struct drm_gem_object *obj;
+ int ret;
+
+ obj = drm_gem_object_lookup(dev, file, args->handle);
+ if (!obj)
+ return -ENOENT;
+
+ ret = msm_gem_cpu_fini(obj);
+
+ drm_gem_object_unreference_unlocked(obj);
+
+ return ret;
+}
+
+static int msm_ioctl_gem_info(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_msm_gem_info *args = data;
+ struct drm_gem_object *obj;
+ int ret = 0;
+
+ if (args->pad)
+ return -EINVAL;
+
+ obj = drm_gem_object_lookup(dev, file, args->handle);
+ if (!obj)
+ return -ENOENT;
+
+ args->offset = msm_gem_mmap_offset(obj);
+
+ drm_gem_object_unreference_unlocked(obj);
+
+ return ret;
+}
+
+static int msm_ioctl_wait_fence(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_msm_wait_fence *args = data;
+ return msm_wait_fence_interruptable(dev, args->fence, &TS(args->timeout));
+}
+
+static const struct drm_ioctl_desc msm_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_UNLOCKED|DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit, DRM_UNLOCKED|DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence, DRM_UNLOCKED|DRM_AUTH),
+};
+
static const struct vm_operations_struct vm_ops = {
.fault = msm_gem_fault,
.open = drm_gem_vm_open,
.driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET,
.load = msm_load,
.unload = msm_unload,
+ .open = msm_open,
.preclose = msm_preclose,
.lastclose = msm_lastclose,
.irq_handler = msm_irq,
.debugfs_init = msm_debugfs_init,
.debugfs_cleanup = msm_debugfs_cleanup,
#endif
+ .ioctls = msm_ioctls,
+ .num_ioctls = DRM_MSM_NUM_IOCTLS,
.fops = &fops,
.name = "msm",
.desc = "MSM Snapdragon DRM",
{
DBG("init");
hdmi_register();
+ a3xx_register();
return platform_driver_register(&msm_platform_driver);
}
DBG("fini");
platform_driver_unregister(&msm_platform_driver);
hdmi_unregister();
+ a3xx_unregister();
}
module_init(msm_drm_register);
projects / deliverable / linux.git / blobdiff