1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm.h b/drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm.h
new file mode 100644
index 0000000..6b9fb1b
--- /dev/null
+++ b/drivers/staging/media/atomisp/pci/atomisp2/include/hmm/hmm.h
@@ -0,0 +1,106 @@
+/*
+ * 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_H__
+#define	__HMM_H__
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+
+#include "hmm/hmm_pool.h"
+#include "ia_css_types.h"
+
+#define HMM_CACHED true
+#define HMM_UNCACHED false
+
+int hmm_pool_register(unsigned int pool_size, enum hmm_pool_type pool_type);
+void hmm_pool_unregister(enum hmm_pool_type pool_type);
+
+int hmm_init(void);
+void hmm_cleanup(void);
+
+ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
+		int from_highmem, void *userptr, bool cached);
+void hmm_free(ia_css_ptr ptr);
+int hmm_load(ia_css_ptr virt, void *data, unsigned int bytes);
+int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes);
+int hmm_set(ia_css_ptr virt, int c, unsigned int bytes);
+int hmm_flush(ia_css_ptr virt, unsigned int bytes);
+
+/*
+ * get kernel memory physical address from ISP virtual address.
+ */
+phys_addr_t hmm_virt_to_phys(ia_css_ptr virt);
+
+/*
+ * map ISP memory starts with virt to kernel virtual address
+ * by using vmap. return NULL if failed.
+ *
+ * virt must be the start address of ISP memory (return by hmm_alloc),
+ * do not pass any other address.
+ */
+void *hmm_vmap(ia_css_ptr virt, bool cached);
+void hmm_vunmap(ia_css_ptr virt);
+
+/*
+ * flush the cache for the vmapped buffer.
+ * if the buffer has not been vmapped, return directly.
+ */
+void hmm_flush_vmap(ia_css_ptr virt);
+
+/*
+ * Address translation from ISP shared memory address to kernel virtual address
+ * if the memory is not vmmaped,  then do it.
+ */
+void *hmm_isp_vaddr_to_host_vaddr(ia_css_ptr ptr, bool cached);
+
+/*
+ * Address translation from kernel virtual address to ISP shared memory address
+ */
+ia_css_ptr hmm_host_vaddr_to_hrt_vaddr(const void *ptr);
+
+/*
+ * map ISP memory starts with virt to specific vma.
+ *
+ * used for mmap operation.
+ *
+ * virt must be the start address of ISP memory (return by hmm_alloc),
+ * do not pass any other address.
+ */
+int hmm_mmap(struct vm_area_struct *vma, ia_css_ptr virt);
+
+/* show memory statistic
+ */
+void hmm_show_mem_stat(const char *func, const int line);
+
+/* init memory statistic
+ */
+void hmm_init_mem_stat(int res_pgnr, int dyc_en, int dyc_pgnr);
+
+extern bool dypool_enable;
+extern unsigned int dypool_pgnr;
+extern struct hmm_bo_device bo_device;
+
+#endif