drm: mark context support as a legacy subsystem

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / drm_context.c

diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
index 224ff965bcf7de624c3b62b6db153bda090ea4a9..b4fb86d89850a31c3cc9424f4b4148831c59922f 100644 (file)
--- a/drivers/gpu/drm/drm_context.c
+++ b/drivers/gpu/drm/drm_context.c
@@ -42,10 +42,6 @@
 
 #include <drm/drmP.h>
 
-/******************************************************************/
-/** \name Context bitmap support */
-/*@{*/
-
 /**
  * Free a handle from the context bitmap.
  *
@@ -56,13 +52,48 @@
  * in drm_device::ctx_idr, while holding the drm_device::struct_mutex
  * lock.
  */
-void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
+static void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
 {
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
        mutex_lock(&dev->struct_mutex);
        idr_remove(&dev->ctx_idr, ctx_handle);
        mutex_unlock(&dev->struct_mutex);
 }
 
+/******************************************************************/
+/** \name Context bitmap support */
+/*@{*/
+
+void drm_legacy_ctxbitmap_release(struct drm_device *dev,
+                                 struct drm_file *file_priv)
+{
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
+       mutex_lock(&dev->ctxlist_mutex);
+       if (!list_empty(&dev->ctxlist)) {
+               struct drm_ctx_list *pos, *n;
+
+               list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {
+                       if (pos->tag == file_priv &&
+                           pos->handle != DRM_KERNEL_CONTEXT) {
+                               if (dev->driver->context_dtor)
+                                       dev->driver->context_dtor(dev,
+                                                                 pos->handle);
+
+                               drm_ctxbitmap_free(dev, pos->handle);
+
+                               list_del(&pos->head);
+                               kfree(pos);
+                               --dev->ctx_count;
+                       }
+               }
+       }
+       mutex_unlock(&dev->ctxlist_mutex);
+}
+
 /**
  * Context bitmap allocation.
  *
@@ -90,10 +121,12 @@ static int drm_ctxbitmap_next(struct drm_device * dev)
  *
  * Initialise the drm_device::ctx_idr
  */
-int drm_ctxbitmap_init(struct drm_device * dev)
+void drm_legacy_ctxbitmap_init(struct drm_device * dev)
 {
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
        idr_init(&dev->ctx_idr);
-       return 0;
 }
 
 /**
@@ -104,7 +137,7 @@ int drm_ctxbitmap_init(struct drm_device * dev)
  * Free all idr members using drm_ctx_sarea_free helper function
  * while holding the drm_device::struct_mutex lock.
  */
-void drm_ctxbitmap_cleanup(struct drm_device * dev)
+void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)
 {
        mutex_lock(&dev->struct_mutex);
        idr_destroy(&dev->ctx_idr);
@@ -136,6 +169,9 @@ int drm_getsareactx(struct drm_device *dev, void *data,
        struct drm_local_map *map;
        struct drm_map_list *_entry;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        mutex_lock(&dev->struct_mutex);
 
        map = idr_find(&dev->ctx_idr, request->ctx_id);
@@ -180,6 +216,9 @@ int drm_setsareactx(struct drm_device *dev, void *data,
        struct drm_local_map *map = NULL;
        struct drm_map_list *r_list = NULL;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        mutex_lock(&dev->struct_mutex);
        list_for_each_entry(r_list, &dev->maplist, head) {
                if (r_list->map
@@ -280,6 +319,9 @@ int drm_resctx(struct drm_device *dev, void *data,
        struct drm_ctx ctx;
        int i;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        if (res->count >= DRM_RESERVED_CONTEXTS) {
                memset(&ctx, 0, sizeof(ctx));
                for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
@@ -310,6 +352,9 @@ int drm_addctx(struct drm_device *dev, void *data,
        struct drm_ctx_list *ctx_entry;
        struct drm_ctx *ctx = data;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        ctx->handle = drm_ctxbitmap_next(dev);
        if (ctx->handle == DRM_KERNEL_CONTEXT) {
                /* Skip kernel's context and get a new one. */
@@ -353,6 +398,9 @@ int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
        struct drm_ctx *ctx = data;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        /* This is 0, because we don't handle any context flags */
        ctx->flags = 0;
 
@@ -375,6 +423,9 @@ int drm_switchctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        DRM_DEBUG("%d\n", ctx->handle);
        return drm_context_switch(dev, dev->last_context, ctx->handle);
 }
@@ -395,6 +446,9 @@ int drm_newctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        DRM_DEBUG("%d\n", ctx->handle);
        drm_context_switch_complete(dev, file_priv, ctx->handle);
 
@@ -417,6 +471,9 @@ int drm_rmctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        DRM_DEBUG("%d\n", ctx->handle);
        if (ctx->handle != DRM_KERNEL_CONTEXT) {
                if (dev->driver->context_dtor)