1 files changed, 210 insertions, 0 deletions

diff --git a/drivers/gpu/pvr/buffer_manager.h b/drivers/gpu/pvr/buffer_manager.h
new file mode 100644
index 00000000000..1467cd3939f
--- /dev/null
+++ b/drivers/gpu/pvr/buffer_manager.h
@@ -0,0 +1,210 @@
+/**********************************************************************
+ *
+ * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope it will be useful but, except 
+ * as otherwise stated in writing, 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 St - Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK 
+ *
+ ******************************************************************************/
+
+#ifndef _BUFFER_MANAGER_H_
+#define _BUFFER_MANAGER_H_
+
+#include "img_types.h"
+#include "ra.h"
+#include "perproc.h"
+
+#if defined(__cplusplus)
+extern "C"{
+#endif
+
+typedef struct _BM_HEAP_ BM_HEAP;
+
+struct _BM_MAPPING_
+{
+        enum
+        {
+                hm_wrapped = 1,         
+                hm_wrapped_scatter,     
+                hm_wrapped_virtaddr, 
+                hm_wrapped_scatter_virtaddr, 
+                hm_env,                         
+                hm_contiguous           
+        } eCpuMemoryOrigin;
+
+        BM_HEAP                         *pBMHeap;       
+        RA_ARENA                        *pArena;        
+
+        IMG_CPU_VIRTADDR        CpuVAddr;
+        IMG_CPU_PHYADDR         CpuPAddr;
+        IMG_DEV_VIRTADDR        DevVAddr;
+        IMG_SYS_PHYADDR         *psSysAddr;
+        IMG_SIZE_T                      uSize;
+    IMG_HANDLE          hOSMemHandle;
+        IMG_UINT32                      ui32Flags;
+};
+
+typedef struct _BM_BUF_
+{
+        IMG_CPU_VIRTADDR        *CpuVAddr;
+    IMG_VOID            *hOSMemHandle;
+        IMG_CPU_PHYADDR         CpuPAddr;
+        IMG_DEV_VIRTADDR        DevVAddr;
+
+        BM_MAPPING                      *pMapping;
+        IMG_UINT32                      ui32RefCount;
+        IMG_UINT32                      ui32ExportCount;
+} BM_BUF;
+
+struct _BM_HEAP_
+{
+        IMG_UINT32                              ui32Attribs;
+        BM_CONTEXT                              *pBMContext;
+        RA_ARENA                                *pImportArena;
+        RA_ARENA                                *pLocalDevMemArena;
+        RA_ARENA                                *pVMArena;
+        DEV_ARENA_DESCRIPTOR    sDevArena;
+        MMU_HEAP                                *pMMUHeap;
+        PDUMP_MMU_ATTRIB                *psMMUAttrib;
+        
+        struct _BM_HEAP_                *psNext;
+        struct _BM_HEAP_                **ppsThis;
+};
+
+struct _BM_CONTEXT_
+{
+        MMU_CONTEXT     *psMMUContext;
+
+        
+         BM_HEAP *psBMHeap;
+
+        
+         BM_HEAP *psBMSharedHeap;
+
+        PVRSRV_DEVICE_NODE *psDeviceNode;
+
+        
+        HASH_TABLE *pBufferHash;
+
+        
+        IMG_HANDLE hResItem;
+
+        IMG_UINT32 ui32RefCount;
+
+        
+
+        struct _BM_CONTEXT_ *psNext;
+        struct _BM_CONTEXT_ **ppsThis;
+};
+
+
+
+typedef IMG_VOID *BM_HANDLE;
+
+#define BP_POOL_MASK         0x7
+
+#define BP_CONTIGUOUS                   (1 << 3)
+#define BP_PARAMBUFFER                  (1 << 4)
+
+#define BM_MAX_DEVMEM_ARENAS  2
+
+IMG_HANDLE
+BM_CreateContext(PVRSRV_DEVICE_NODE                     *psDeviceNode,
+                                 IMG_DEV_PHYADDR                        *psPDDevPAddr,
+                                 PVRSRV_PER_PROCESS_DATA        *psPerProc,
+                                 IMG_BOOL                                       *pbCreated);
+
+
+PVRSRV_ERROR
+BM_DestroyContext (IMG_HANDLE hBMContext,
+                                        IMG_BOOL *pbCreated);
+
+
+IMG_HANDLE
+BM_CreateHeap (IMG_HANDLE hBMContext,
+                                DEVICE_MEMORY_HEAP_INFO *psDevMemHeapInfo);
+
+IMG_VOID
+BM_DestroyHeap (IMG_HANDLE hDevMemHeap);
+
+
+IMG_BOOL
+BM_Reinitialise (PVRSRV_DEVICE_NODE *psDeviceNode);
+
+IMG_BOOL
+BM_Alloc (IMG_HANDLE                    hDevMemHeap,
+                        IMG_DEV_VIRTADDR        *psDevVAddr,
+                        IMG_SIZE_T                      uSize,
+                        IMG_UINT32                      *pui32Flags,
+                        IMG_UINT32                      uDevVAddrAlignment,
+                        BM_HANDLE                       *phBuf);
+
+IMG_BOOL
+BM_Wrap (       IMG_HANDLE hDevMemHeap,
+                    IMG_SIZE_T ui32Size,
+                        IMG_SIZE_T ui32Offset,
+                        IMG_BOOL bPhysContig,
+                        IMG_SYS_PHYADDR *psSysAddr,
+                        IMG_VOID *pvCPUVAddr,
+                        IMG_UINT32 *pui32Flags,
+                        BM_HANDLE *phBuf);
+
+IMG_VOID
+BM_Free (BM_HANDLE hBuf,
+                IMG_UINT32 ui32Flags);
+
+
+IMG_CPU_VIRTADDR
+BM_HandleToCpuVaddr (BM_HANDLE hBuf);
+
+IMG_DEV_VIRTADDR
+BM_HandleToDevVaddr (BM_HANDLE hBuf);
+
+IMG_SYS_PHYADDR
+BM_HandleToSysPaddr (BM_HANDLE hBuf);
+
+IMG_HANDLE
+BM_HandleToOSMemHandle (BM_HANDLE hBuf);
+
+IMG_VOID BM_GetPhysPageAddr(PVRSRV_KERNEL_MEM_INFO *psMemInfo,
+                                                                IMG_DEV_VIRTADDR sDevVPageAddr,
+                                                                IMG_DEV_PHYADDR *psDevPAddr);
+
+MMU_CONTEXT* BM_GetMMUContext(IMG_HANDLE hDevMemHeap);
+
+MMU_CONTEXT* BM_GetMMUContextFromMemContext(IMG_HANDLE hDevMemContext);
+
+IMG_HANDLE BM_GetMMUHeap(IMG_HANDLE hDevMemHeap);
+
+PVRSRV_DEVICE_NODE* BM_GetDeviceNode(IMG_HANDLE hDevMemContext);
+
+
+IMG_HANDLE BM_GetMappingHandle(PVRSRV_KERNEL_MEM_INFO *psMemInfo);
+
+IMG_VOID BM_Export(BM_HANDLE hBuf);
+
+IMG_VOID BM_FreeExport(BM_HANDLE hBuf, IMG_UINT32 ui32Flags);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
+