| /*************************************************************************/ /*! |
| @File |
| @Title X Device Memory Management core internal |
| @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved |
| @Description Services internal interface for extended device memory management. |
| @License Dual MIT/GPLv2 |
| |
| The contents of this file are subject to the MIT license as set out below. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), to deal |
| in the Software without restriction, including without limitation the rights |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| copies of the Software, and to permit persons to whom the Software is |
| furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included in |
| all copies or substantial portions of the Software. |
| |
| Alternatively, the contents of this file may be used under the terms of |
| the GNU General Public License Version 2 ("GPL") in which case the provisions |
| of GPL are applicable instead of those above. |
| |
| If you wish to allow use of your version of this file only under the terms of |
| GPL, and not to allow others to use your version of this file under the terms |
| of the MIT license, indicate your decision by deleting the provisions above |
| and replace them with the notice and other provisions required by GPL as set |
| out in the file called "GPL-COPYING" included in this distribution. If you do |
| not delete the provisions above, a recipient may use your version of this file |
| under the terms of either the MIT license or GPL. |
| |
| This License is also included in this distribution in the file called |
| "MIT-COPYING". |
| |
| EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS |
| PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
| BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
| PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR |
| COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ /**************************************************************************/ |
| |
| #ifndef DEVICEMEMX_H |
| #define DEVICEMEMX_H |
| |
| #include "img_types.h" |
| #include "devicemem_typedefs.h" |
| #include "devicemem_utils.h" |
| #include "pdumpdefs.h" |
| #include "pvrsrv_error.h" |
| #include "pvrsrv_memallocflags.h" |
| #include "osfunc.h" |
| |
| /* DevmemXAllocPhysical() |
| * |
| * Allocate physical device memory and return a physical |
| * descriptor for it. |
| */ |
| PVRSRV_ERROR |
| DevmemXAllocPhysical(DEVMEM_CONTEXT *psCtx, |
| IMG_UINT32 uiNumPages, |
| IMG_UINT32 uiLog2PageSize, |
| DEVMEM_FLAGS_T uiFlags, |
| const IMG_CHAR *pszText, |
| DEVMEMX_PHYSDESC **ppsPhysDesc); |
| |
| /* DevmemXReleasePhysical() |
| * |
| * Removes a physical device allocation if all references |
| * to it are dropped, otherwise just decreases the refcount. |
| */ |
| void |
| DevmemXReleasePhysical(DEVMEMX_PHYSDESC *psPhysDesc); |
| |
| /* DevmemAllocVirtual() |
| * |
| * Allocate and reserve a device virtual range and return |
| * a virtual descriptor for it. |
| */ |
| PVRSRV_ERROR |
| DevmemXAllocVirtual(DEVMEM_HEAP* hHeap, |
| IMG_UINT32 uiNumPages, |
| DEVMEM_FLAGS_T uiFlags, |
| const IMG_CHAR *pszText, |
| DEVMEMX_VIRTDESC **ppsVirtDesc, |
| IMG_DEV_VIRTADDR *psVirtAddr); |
| |
| /* DevmemXFreeVirtual() |
| * |
| * Removes a device virtual range if all mappings on it |
| * have been removed. |
| */ |
| PVRSRV_ERROR |
| DevmemXFreeVirtual(DEVMEMX_VIRTDESC *psVirtDesc); |
| |
| /* DevmemXMapVirtualRange() |
| * |
| * Map memory from a physical descriptor into a |
| * virtual range. |
| */ |
| PVRSRV_ERROR |
| DevmemXMapVirtualRange(IMG_UINT32 ui32PageCount, |
| DEVMEMX_PHYSDESC *psPhysDesc, |
| IMG_UINT32 ui32PhysOffset, |
| DEVMEMX_VIRTDESC *psVirtDesc, |
| IMG_UINT32 ui32VirtOffset); |
| |
| /* DevmemXUnmapVirtualRange() |
| * |
| * Unmap pages from a device virtual range. |
| */ |
| PVRSRV_ERROR |
| DevmemXUnmapVirtualRange(IMG_UINT32 ui32PageCount, |
| DEVMEMX_VIRTDESC *psVirtDesc, |
| IMG_UINT32 ui32VirtPgOffset); |
| |
| /* DevmemXMapPhysicalToCPU() |
| * |
| * Map a full physical descriptor to CPU space. |
| */ |
| PVRSRV_ERROR |
| DevmemXMapPhysicalToCPU(DEVMEMX_PHYSDESC *psMemAllocPhys, |
| IMG_CPU_VIRTADDR *psVirtAddr); |
| |
| /* DevmemXUnmapPhysicalToCPU() |
| * |
| * Remove the CPU mapping from the descriptor. |
| */ |
| PVRSRV_ERROR |
| DevmemXUnmapPhysicalToCPU(DEVMEMX_PHYSDESC *psMemAllocPhys); |
| |
| /* DevmemXCreateDevmemMemDesc() |
| * |
| * DEPRICATED! |
| * DO NOT USE IN PRODUCTION DRIVER! |
| * |
| * Create a devmem memdesc from a physical and |
| * virtual descriptor. |
| * Always destroy with DevmemFreePhysVirtMemDesc(). |
| */ |
| |
| PVRSRV_ERROR |
| DevmemXCreateDevmemMemDesc(const IMG_DEV_VIRTADDR sVirtualAddress, |
| DEVMEM_MEMDESC **ppsMemDesc); |
| |
| /* DevmemXFreeDevmemMemDesc() |
| * |
| * DEPRICATED! |
| * DO NOT USE IN PRODUCTION DRIVER! |
| * |
| * Free the memdesc again. Has no impact on the underlying |
| * physical and virtual descriptors. |
| */ |
| PVRSRV_ERROR |
| DevmemXFreeDevmemMemDesc(DEVMEM_MEMDESC *psMemDesc); |
| |
| PVRSRV_ERROR |
| _DevmemXFlagCompatibilityCheck(IMG_UINT32 uiPhysFlags, |
| IMG_UINT32 uiVirtFlags); |
| |
| PVRSRV_ERROR |
| _DevmemXPhysDescAlloc(DEVMEMX_PHYSDESC **ppsPhysDesc); |
| |
| void |
| _DevmemXPhysDescInit(DEVMEMX_PHYSDESC *psPhysDesc, |
| IMG_HANDLE hPMR, |
| IMG_UINT32 uiNumPages, |
| IMG_UINT32 uiLog2PageSize, |
| PVRSRV_MEMALLOCFLAGS_T uiFlags, |
| IMG_HANDLE hBridge); |
| |
| void |
| _DevmemXPhysDescFree(DEVMEMX_PHYSDESC *psPhysDesc); |
| |
| #endif /* DEVICEMEMX_H */ |