1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm_bo_dev.h b/drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm_bo_dev.h
new file mode 100644
index 0000000..a9446ad
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm_bo_dev.h
@@ -0,0 +1,130 @@
+/*
+ * Support for Medifield PNW Camera Imaging ISP subsystem.
+ *
+ * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
+ *
+ * Copyright (c) 2010 Silicon Hive www.siliconhive.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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ */
+
+#ifndef	__HMM_BO_DEV_H__
+#define	__HMM_BO_DEV_H__
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include "mmu/isp_mmu.h"
+#include "hmm/hmm_common.h"
+#include "hmm/hmm_vm.h"
+#include "ia_css_types.h"
+
+#define	check_bodev_null_return(bdev, exp)	\
+		check_null_return(bdev, exp, \
+			"NULL hmm_bo_device.\n")
+
+#define	check_bodev_null_return_void(bdev)	\
+		check_null_return_void(bdev, \
+			"NULL hmm_bo_device.\n")
+
+#define	HMM_BO_DEVICE_INITED	0x1
+
+#define	HMM_BO_CACHE_SIZE	2
+
+
+struct hmm_buffer_object;
+
+struct hmm_bo_device {
+	/* isp_mmu provides lock itself */
+	struct isp_mmu		mmu;
+
+	/* hmm_vm provides lock itself */
+	struct hmm_vm		vaddr_space;
+
+	struct list_head	free_bo_list;
+	struct list_head	active_bo_list;
+
+	/* list lock is used to protect both of the buffer object lists */
+	spinlock_t		list_lock;
+#ifdef CONFIG_ION
+	struct ion_client	*iclient;
+#endif
+	int			flag;
+};
+
+int hmm_bo_device_init(struct hmm_bo_device *bdev,
+		       struct isp_mmu_client *mmu_driver,
+		       unsigned int vaddr_start, unsigned int size);
+
+/*
+ * clean up all hmm_bo_device related things.
+ */
+void hmm_bo_device_exit(struct hmm_bo_device *bdev);
+
+/*
+ * whether the bo device is inited or not.
+ */
+int hmm_bo_device_inited(struct hmm_bo_device *bdev);
+
+/*
+ * find the buffer object with virtual address vaddr.
+ * return NULL if no such buffer object found.
+ */
+struct hmm_buffer_object *hmm_bo_device_search_start(
+		struct hmm_bo_device *bdev, ia_css_ptr vaddr);
+
+/*
+ * find the buffer object with virtual address vaddr.
+ * return NULL if no such buffer object found.
+ */
+struct hmm_buffer_object *hmm_bo_device_search_in_range(
+		struct hmm_bo_device *bdev, ia_css_ptr vaddr);
+
+/*
+ * find the buffer object with kernel virtual address vaddr.
+ * return NULL if no such buffer object found.
+ */
+struct hmm_buffer_object *hmm_bo_device_search_vmap_start(
+		struct hmm_bo_device *bdev, const void *vaddr);
+
+/*
+ * find a buffer object with pgnr pages from free_bo_list and
+ * activate it (remove from free_bo_list and add to
+ * active_bo_list)
+ *
+ * return NULL if no such buffer object found.
+ */
+struct hmm_buffer_object *hmm_bo_device_get_bo(
+		struct hmm_bo_device *bdev, unsigned int pgnr);
+
+/*
+ * destroy all buffer objects in the free_bo_list.
+ */
+void hmm_bo_device_destroy_free_bo_list(struct hmm_bo_device *bdev);
+/*
+ * destroy buffer object with start virtual address vaddr.
+ */
+void hmm_bo_device_destroy_free_bo_addr(struct hmm_bo_device *bdev,
+		ia_css_ptr vaddr);
+/*
+ * destroy all buffer objects with pgnr pages.
+ */
+void hmm_bo_device_destroy_free_bo_size(struct hmm_bo_device *bdev,
+		unsigned int pgnr);
+
+#endif