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- /*************************************************************************/ /*!
- @File rgx_compat_bvnc.h
- @Title BVNC compatibility check utilities
- @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
- @Description Utility functions used for packing BNC and V.
- @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.
- */ /**************************************************************************/
- #if !defined(RGX_COMPAT_BVNC_H)
- #define RGX_COMPAT_BVNC_H
- #include "img_types.h"
- #if defined(RGX_FIRMWARE) /* Services firmware */
- # include "rgxfw_utils.h"
- # define PVR_COMPAT_ASSERT RGXFW_ASSERT
- #elif !defined(RGX_BUILD_BINARY) /* Services host driver code */
- # include "pvr_debug.h"
- # define PVR_COMPAT_ASSERT PVR_ASSERT
- #else /* FW user-mode tools */
- # include <assert.h>
- # define PVR_COMPAT_ASSERT assert
- #endif
- /* 64bit endian conversion macros */
- #if defined(__BIG_ENDIAN__)
- #define RGX_INT64_TO_BE(N) (N)
- #define RGX_INT64_FROM_BE(N) (N)
- #define RGX_INT32_TO_BE(N) (N)
- #define RGX_INT32_FROM_BE(N) (N)
- #else
- #define RGX_INT64_TO_BE(N) \
- ((((N) >> 56) & 0xff) \
- | (((N) >> 40) & 0xff00) \
- | (((N) >> 24) & 0xff0000) \
- | (((N) >> 8) & 0xff000000U) \
- | ((N) << 56) \
- | (((N) & 0xff00) << 40) \
- | (((N) & 0xff0000) << 24) \
- | (((N) & 0xff000000U) << 8))
- #define RGX_INT64_FROM_BE(N) RGX_INT64_TO_BE(N)
- #define RGX_INT32_TO_BE(N) \
- ((((N) >> 24) & 0xff) \
- | (((N) >> 8) & 0xff00) \
- | ((N) << 24) \
- | ((((N) & 0xff00) << 8)))
- #define RGX_INT32_FROM_BE(N) RGX_INT32_TO_BE(N)
- #endif
- /******************************************************************************
- * RGX Version packed into 64-bit (BVNC) to be used by Compatibility Check
- *****************************************************************************/
- #define RGX_BVNC_PACK_SHIFT_B 48
- #define RGX_BVNC_PACK_SHIFT_V 32
- #define RGX_BVNC_PACK_SHIFT_N 16
- #define RGX_BVNC_PACK_SHIFT_C 0
- #define RGX_BVNC_PACK_MASK_B (IMG_UINT64_C(0xFFFF000000000000))
- #define RGX_BVNC_PACK_MASK_V (IMG_UINT64_C(0x0000FFFF00000000))
- #define RGX_BVNC_PACK_MASK_N (IMG_UINT64_C(0x00000000FFFF0000))
- #define RGX_BVNC_PACK_MASK_C (IMG_UINT64_C(0x000000000000FFFF))
- #define RGX_BVNC_PACKED_EXTR_B(BVNC) ((IMG_UINT32)(((BVNC) & RGX_BVNC_PACK_MASK_B) >> RGX_BVNC_PACK_SHIFT_B))
- #define RGX_BVNC_PACKED_EXTR_V(BVNC) ((IMG_UINT32)(((BVNC) & RGX_BVNC_PACK_MASK_V) >> RGX_BVNC_PACK_SHIFT_V))
- #define RGX_BVNC_PACKED_EXTR_N(BVNC) ((IMG_UINT32)(((BVNC) & RGX_BVNC_PACK_MASK_N) >> RGX_BVNC_PACK_SHIFT_N))
- #define RGX_BVNC_PACKED_EXTR_C(BVNC) ((IMG_UINT32)(((BVNC) & RGX_BVNC_PACK_MASK_C) >> RGX_BVNC_PACK_SHIFT_C))
- #define RGX_BVNC_EQUAL(L,R,all,version,bvnc) do { \
- (bvnc) = IMG_FALSE; \
- (version) = ((L).ui32LayoutVersion == (R).ui32LayoutVersion); \
- if (version) \
- { \
- (bvnc) = ((L).ui64BVNC == (R).ui64BVNC); \
- } \
- (all) = (version) && (bvnc); \
- } while (0)
- /**************************************************************************//**
- * Utility function for packing BVNC
- *****************************************************************************/
- static inline IMG_UINT64 rgx_bvnc_pack(IMG_UINT32 ui32B, IMG_UINT32 ui32V, IMG_UINT32 ui32N, IMG_UINT32 ui32C)
- {
- /*
- * Test for input B, V, N and C exceeding max bit width.
- */
- PVR_COMPAT_ASSERT((ui32B & (~(RGX_BVNC_PACK_MASK_B >> RGX_BVNC_PACK_SHIFT_B))) == 0U);
- PVR_COMPAT_ASSERT((ui32V & (~(RGX_BVNC_PACK_MASK_V >> RGX_BVNC_PACK_SHIFT_V))) == 0U);
- PVR_COMPAT_ASSERT((ui32N & (~(RGX_BVNC_PACK_MASK_N >> RGX_BVNC_PACK_SHIFT_N))) == 0U);
- PVR_COMPAT_ASSERT((ui32C & (~(RGX_BVNC_PACK_MASK_C >> RGX_BVNC_PACK_SHIFT_C))) == 0U);
- return (((IMG_UINT64)ui32B << RGX_BVNC_PACK_SHIFT_B) |
- ((IMG_UINT64)ui32V << RGX_BVNC_PACK_SHIFT_V) |
- ((IMG_UINT64)ui32N << RGX_BVNC_PACK_SHIFT_N) |
- ((IMG_UINT64)ui32C << RGX_BVNC_PACK_SHIFT_C));
- }
- #endif /* RGX_COMPAT_BVNC_H */
- /******************************************************************************
- End of file (rgx_compat_bvnc.h)
- ******************************************************************************/
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