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-rw-r--r--kernel/drivers/gpu/drm/msm/msm_mmu.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/msm/msm_mmu.h b/kernel/drivers/gpu/drm/msm/msm_mmu.h
new file mode 100644
index 000000000..7cd88d9dc
--- /dev/null
+++ b/kernel/drivers/gpu/drm/msm/msm_mmu.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2013 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MSM_MMU_H__
+#define __MSM_MMU_H__
+
+#include <linux/iommu.h>
+
+struct msm_mmu_funcs {
+ int (*attach)(struct msm_mmu *mmu, const char **names, int cnt);
+ void (*detach)(struct msm_mmu *mmu, const char **names, int cnt);
+ int (*map)(struct msm_mmu *mmu, uint32_t iova, struct sg_table *sgt,
+ unsigned len, int prot);
+ int (*unmap)(struct msm_mmu *mmu, uint32_t iova, struct sg_table *sgt,
+ unsigned len);
+ void (*destroy)(struct msm_mmu *mmu);
+};
+
+struct msm_mmu {
+ const struct msm_mmu_funcs *funcs;
+ struct device *dev;
+};
+
+static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
+ const struct msm_mmu_funcs *funcs)
+{
+ mmu->dev = dev;
+ mmu->funcs = funcs;
+}
+
+struct msm_mmu *msm_iommu_new(struct device *dev, struct iommu_domain *domain);
+struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu);
+
+#endif /* __MSM_MMU_H__ */