These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / gpu / drm / drm_context.c

diff --git a/kernel/drivers/gpu/drm/drm_context.c b/kernel/drivers/gpu/drm/drm_context.c
index 9b23525..192a5f9 100644 (file)
--- a/kernel/drivers/gpu/drm/drm_context.c
+++ b/kernel/drivers/gpu/drm/drm_context.c
@@ -53,6 +53,10 @@ struct drm_ctx_list {
  */
 void drm_legacy_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
 {
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           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);
@@ -85,10 +89,13 @@ static int drm_legacy_ctxbitmap_next(struct drm_device * dev)
  *
  * Initialise the drm_device::ctx_idr
  */
-int drm_legacy_ctxbitmap_init(struct drm_device * dev)
+void drm_legacy_ctxbitmap_init(struct drm_device * dev)
 {
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
        idr_init(&dev->ctx_idr);
-       return 0;
 }
 
 /**
@@ -101,6 +108,10 @@ int drm_legacy_ctxbitmap_init(struct drm_device * dev)
  */
 void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)
 {
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
        mutex_lock(&dev->struct_mutex);
        idr_destroy(&dev->ctx_idr);
        mutex_unlock(&dev->struct_mutex);
@@ -119,6 +130,10 @@ void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file)
 {
        struct drm_ctx_list *pos, *tmp;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return;
+
        mutex_lock(&dev->ctxlist_mutex);
 
        list_for_each_entry_safe(pos, tmp, &dev->ctxlist, head) {
@@ -161,6 +176,10 @@ int drm_legacy_getsareactx(struct drm_device *dev, void *data,
        struct drm_local_map *map;
        struct drm_map_list *_entry;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        mutex_lock(&dev->struct_mutex);
 
        map = idr_find(&dev->ctx_idr, request->ctx_id);
@@ -205,6 +224,10 @@ int drm_legacy_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_KMS_LEGACY_CONTEXT) &&
+           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
@@ -305,6 +328,10 @@ int drm_legacy_resctx(struct drm_device *dev, void *data,
        struct drm_ctx ctx;
        int i;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           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++) {
@@ -335,6 +362,10 @@ int drm_legacy_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_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        ctx->handle = drm_legacy_ctxbitmap_next(dev);
        if (ctx->handle == DRM_KERNEL_CONTEXT) {
                /* Skip kernel's context and get a new one. */
@@ -378,6 +409,10 @@ int drm_legacy_getctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        /* This is 0, because we don't handle any context flags */
        ctx->flags = 0;
 
@@ -400,6 +435,10 @@ int drm_legacy_switchctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           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);
 }
@@ -420,6 +459,10 @@ int drm_legacy_newctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           drm_core_check_feature(dev, DRIVER_MODESET))
+               return -EINVAL;
+
        DRM_DEBUG("%d\n", ctx->handle);
        drm_context_switch_complete(dev, file_priv, ctx->handle);
 
@@ -442,6 +485,10 @@ int drm_legacy_rmctx(struct drm_device *dev, void *data,
 {
        struct drm_ctx *ctx = data;
 
+       if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
+           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)