/* * SPDX-FileCopyrightText: Copyright (c) 1993-2020 NVIDIA CORPORATION & AFFILIATES. All rights reserved. * SPDX-License-Identifier: MIT * * 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. * * 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. 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. */ /* * nvmisc.h */ #ifndef __NV_MISC_H #define __NV_MISC_H #ifdef __cplusplus extern "C" { #endif //__cplusplus #include "nvtypes.h" #if !defined(NVIDIA_UNDEF_LEGACY_BIT_MACROS) // // Miscellaneous macros useful for bit field manipulations // // STUPID HACK FOR CL 19434692. Will revert when fix CL is delivered bfm -> chips_a. #ifndef BIT #define BIT(b) (1U<<(b)) #endif #ifndef BIT32 #define BIT32(b) ((NvU32)1U<<(b)) #endif #ifndef BIT64 #define BIT64(b) ((NvU64)1U<<(b)) #endif #endif // // It is recommended to use the following bit macros to avoid macro name // collisions with other src code bases. // #ifndef NVBIT #define NVBIT(b) (1U<<(b)) #endif #ifndef NVBIT_TYPE #define NVBIT_TYPE(b, t) (((t)1U)<<(b)) #endif #ifndef NVBIT32 #define NVBIT32(b) NVBIT_TYPE(b, NvU32) #endif #ifndef NVBIT64 #define NVBIT64(b) NVBIT_TYPE(b, NvU64) #endif // Helper macro's for 32 bit bitmasks #define NV_BITMASK32_ELEMENT_SIZE (sizeof(NvU32) << 3) #define NV_BITMASK32_IDX(chId) (((chId) & ~(0x1F)) >> 5) #define NV_BITMASK32_OFFSET(chId) ((chId) & (0x1F)) #define NV_BITMASK32_SET(pChannelMask, chId) \ (pChannelMask)[NV_BITMASK32_IDX(chId)] |= NVBIT(NV_BITMASK32_OFFSET(chId)) #define NV_BITMASK32_GET(pChannelMask, chId) \ ((pChannelMask)[NV_BITMASK32_IDX(chId)] & NVBIT(NV_BITMASK32_OFFSET(chId))) // Index of the 'on' bit (assuming that there is only one). // Even if multiple bits are 'on', result is in range of 0-31. #define BIT_IDX_32(n) \ (((((n) & 0xFFFF0000U) != 0U) ? 0x10U: 0U) | \ ((((n) & 0xFF00FF00U) != 0U) ? 0x08U: 0U) | \ ((((n) & 0xF0F0F0F0U) != 0U) ? 0x04U: 0U) | \ ((((n) & 0xCCCCCCCCU) != 0U) ? 0x02U: 0U) | \ ((((n) & 0xAAAAAAAAU) != 0U) ? 0x01U: 0U) ) // Index of the 'on' bit (assuming that there is only one). // Even if multiple bits are 'on', result is in range of 0-63. #define BIT_IDX_64(n) \ (((((n) & 0xFFFFFFFF00000000ULL) != 0U) ? 0x20U: 0U) | \ ((((n) & 0xFFFF0000FFFF0000ULL) != 0U) ? 0x10U: 0U) | \ ((((n) & 0xFF00FF00FF00FF00ULL) != 0U) ? 0x08U: 0U) | \ ((((n) & 0xF0F0F0F0F0F0F0F0ULL) != 0U) ? 0x04U: 0U) | \ ((((n) & 0xCCCCCCCCCCCCCCCCULL) != 0U) ? 0x02U: 0U) | \ ((((n) & 0xAAAAAAAAAAAAAAAAULL) != 0U) ? 0x01U: 0U) ) /*! * DRF MACRO README: * * Glossary: * DRF: Device, Register, Field * FLD: Field * REF: Reference * * #define NV_DEVICE_OMEGA_REGISTER_ALPHA 0xDEADBEEF * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_GAMMA 27:0 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA 31:28 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_ZERO 0x00000000 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_ONE 0x00000001 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_TWO 0x00000002 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_THREE 0x00000003 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_FOUR 0x00000004 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_FIVE 0x00000005 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_SIX 0x00000006 * #define NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA_SEVEN 0x00000007 * * * Device = _DEVICE_OMEGA * This is the common "base" that a group of registers in a manual share * * Register = _REGISTER_ALPHA * Register for a given block of defines is the common root for one or more fields and constants * * Field(s) = _FIELD_GAMMA, _FIELD_ZETA * These are the bit ranges for a given field within the register * Fields are not required to have defined constant values (enumerations) * * Constant(s) = _ZERO, _ONE, _TWO, ... * These are named values (enums) a field can contain; the width of the constants should not be larger than the field width * * MACROS: * * DRF_SHIFT: * Bit index of the lower bound of a field * DRF_SHIFT(NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA) == 28 * * DRF_SHIFT_RT: * Bit index of the higher bound of a field * DRF_SHIFT_RT(NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA) == 31 * * DRF_MASK: * Produces a mask of 1-s equal to the width of a field * DRF_MASK(NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA) == 0xF (four 1s starting at bit 0) * * DRF_SHIFTMASK: * Produces a mask of 1s equal to the width of a field at the location of the field * DRF_SHIFTMASK(NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA) == 0xF0000000 * * DRF_DEF: * Shifts a field constant's value to the correct field offset * DRF_DEF(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, _THREE) == 0x30000000 * * DRF_NUM: * Shifts a number to the location of a particular field * DRF_NUM(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, 3) == 0x30000000 * NOTE: If the value passed in is wider than the field, the value's high bits will be truncated * * DRF_SIZE: * Provides the width of the field in bits * DRF_SIZE(NV_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA) == 4 * * DRF_VAL: * Provides the value of an input within the field specified * DRF_VAL(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, 0xABCD1234) == 0xA * This is sort of like the inverse of DRF_NUM * * DRF_IDX...: * These macros are similar to the above but for fields that accept an index argumment * * FLD_SET_DRF: * Set the field bits in a given value with the given field constant * NvU32 x = 0x00001234; * x = FLD_SET_DRF(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, _THREE, x); * x == 0x30001234; * * FLD_SET_DRF_NUM: * Same as FLD_SET_DRF but instead of using a field constant a literal/variable is passed in * NvU32 x = 0x00001234; * x = FLD_SET_DRF_NUM(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, 0xF, x); * x == 0xF0001234; * * FLD_IDX...: * These macros are similar to the above but for fields that accept an index argumment * * FLD_TEST_DRF: * Test if location specified by drf in 'v' has the same value as NV_drfc * FLD_TEST_DRF(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, _THREE, 0x3000ABCD) == NV_TRUE * * FLD_TEST_DRF_NUM: * Test if locations specified by drf in 'v' have the same value as n * FLD_TEST_DRF_NUM(_DEVICE_OMEGA, _REGISTER_ALPHA, _FIELD_ZETA, 0x3, 0x3000ABCD) == NV_TRUE * * REF_DEF: * Like DRF_DEF but maintains full symbol name (use in cases where "NV" is not prefixed to the field) * REF_DEF(SOME_OTHER_PREFIX_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA, _THREE) == 0x30000000 * * REF_VAL: * Like DRF_VAL but maintains full symbol name (use in cases where "NV" is not prefixed to the field) * REF_VAL(SOME_OTHER_PREFIX_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA, 0xABCD1234) == 0xA * * REF_NUM: * Like DRF_NUM but maintains full symbol name (use in cases where "NV" is not prefixed to the field) * REF_NUM(SOME_OTHER_PREFIX_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA, 0xA) == 0xA00000000 * * FLD_SET_REF_NUM: * Like FLD_SET_DRF_NUM but maintains full symbol name (use in cases where "NV" is not prefixed to the field) * NvU32 x = 0x00001234; * x = FLD_SET_REF_NUM(SOME_OTHER_PREFIX_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA, 0xF, x); * x == 0xF0001234; * * FLD_TEST_REF: * Like FLD_TEST_DRF but maintains full symbol name (use in cases where "NV" is not prefixed to the field) * FLD_TEST_REF(SOME_OTHER_PREFIX_DEVICE_OMEGA_REGISTER_ALPHA_FIELD_ZETA, _THREE, 0x3000ABCD) == NV_TRUE * * Other macros: * There a plethora of other macros below that extend the above (notably Multi-Word (MW), 64-bit, and some * reg read/write variations). I hope these are self explanatory. If you have a need to use them, you * probably have some knowledge of how they work. */ // tegra mobile uses nvmisc_macros.h and can't access nvmisc.h... and sometimes both get included. #ifndef _NVMISC_MACROS_H // Use Coverity Annotation to mark issues as false positives/ignore when using single bit defines. #define DRF_ISBIT(bitval,drf) \ ( /* coverity[identical_branches] */ \ (bitval != 0) ? drf ) #define DEVICE_BASE(d) (0?d) // what's up with this name? totally non-parallel to the macros below #define DEVICE_EXTENT(d) (1?d) // what's up with this name? totally non-parallel to the macros below #ifdef NV_MISRA_COMPLIANCE_REQUIRED #ifdef MISRA_14_3 #define DRF_BASE(drf) (drf##_LOW_FIELD) #define DRF_EXTENT(drf) (drf##_HIGH_FIELD) #define DRF_SHIFT(drf) ((drf##_LOW_FIELD) % 32U) #define DRF_SHIFT_RT(drf) ((drf##_HIGH_FIELD) % 32U) #define DRF_MASK(drf) (0xFFFFFFFFU >> (31U - ((drf##_HIGH_FIELD) % 32U) + ((drf##_LOW_FIELD) % 32U))) #else #define DRF_BASE(drf) (NV_FALSE?drf) // much better #define DRF_EXTENT(drf) (NV_TRUE?drf) // much better #define DRF_SHIFT(drf) (((NvU32)DRF_BASE(drf)) % 32U) #define DRF_SHIFT_RT(drf) (((NvU32)DRF_EXTENT(drf)) % 32U) #define DRF_MASK(drf) (0xFFFFFFFFU>>(31U - DRF_SHIFT_RT(drf) + DRF_SHIFT(drf))) #endif #define DRF_DEF(d,r,f,c) (((NvU32)(NV ## d ## r ## f ## c))<>(31-((DRF_ISBIT(1,drf)) % 32)+((DRF_ISBIT(0,drf)) % 32))) #define DRF_DEF(d,r,f,c) ((NV ## d ## r ## f ## c)<>DRF_SHIFT(NV ## d ## r ## f))&DRF_MASK(NV ## d ## r ## f)) #endif // Signed version of DRF_VAL, which takes care of extending sign bit. #define DRF_VAL_SIGNED(d,r,f,v) (((DRF_VAL(d,r,f,(v)) ^ (NVBIT(DRF_SIZE(NV ## d ## r ## f)-1U)))) - (NVBIT(DRF_SIZE(NV ## d ## r ## f)-1U))) #define DRF_IDX_DEF(d,r,f,i,c) ((NV ## d ## r ## f ## c)<>DRF_SHIFT(NV##d##r##f(i)))&DRF_MASK(NV##d##r##f(i))) #define DRF_IDX_OFFSET_VAL(d,r,f,i,o,v) (((v)>>DRF_SHIFT(NV##d##r##f(i,o)))&DRF_MASK(NV##d##r##f(i,o))) // Fractional version of DRF_VAL which reads Fx.y fixed point number (x.y)*z #define DRF_VAL_FRAC(d,r,x,y,v,z) ((DRF_VAL(d,r,x,(v))*z) + ((DRF_VAL(d,r,y,v)*z) / (1<>(63-((DRF_ISBIT(1,drf)) % 64)+((DRF_ISBIT(0,drf)) % 64))) #define DRF_SHIFTMASK64(drf) (DRF_MASK64(drf)<<(DRF_SHIFT64(drf))) #define DRF_DEF64(d,r,f,c) (((NvU64)(NV ## d ## r ## f ## c))<>DRF_SHIFT64(NV ## d ## r ## f))&DRF_MASK64(NV ## d ## r ## f)) #define DRF_VAL_SIGNED64(d,r,f,v) (((DRF_VAL64(d,r,f,(v)) ^ (NVBIT64(DRF_SIZE(NV ## d ## r ## f)-1)))) - (NVBIT64(DRF_SIZE(NV ## d ## r ## f)-1))) #define DRF_IDX_DEF64(d,r,f,i,c) (((NvU64)(NV ## d ## r ## f ## c))<>DRF_SHIFT64(NV##d##r##f(i)))&DRF_MASK64(NV##d##r##f(i))) #define DRF_IDX_OFFSET_VAL64(d,r,f,i,o,v) (((NvU64)(v)>>DRF_SHIFT64(NV##d##r##f(i,o)))&DRF_MASK64(NV##d##r##f(i,o))) #define FLD_SET_DRF64(d,r,f,c,v) (((NvU64)(v) & ~DRF_SHIFTMASK64(NV##d##r##f)) | DRF_DEF64(d,r,f,c)) #define FLD_SET_DRF_NUM64(d,r,f,n,v) ((((NvU64)(v)) & ~DRF_SHIFTMASK64(NV##d##r##f)) | DRF_NUM64(d,r,f,n)) #define FLD_IDX_SET_DRF64(d,r,f,i,c,v) (((NvU64)(v) & ~DRF_SHIFTMASK64(NV##d##r##f(i))) | DRF_IDX_DEF64(d,r,f,i,c)) #define FLD_IDX_OFFSET_SET_DRF64(d,r,f,i,o,c,v) (((NvU64)(v) & ~DRF_SHIFTMASK64(NV##d##r##f(i,o))) | DRF_IDX_OFFSET_DEF64(d,r,f,i,o,c)) #define FLD_IDX_SET_DRF_DEF64(d,r,f,i,c,v) (((NvU64)(v) & ~DRF_SHIFTMASK64(NV##d##r##f(i))) | DRF_IDX_DEF64(d,r,f,i,c)) #define FLD_IDX_SET_DRF_NUM64(d,r,f,i,n,v) (((NvU64)(v) & ~DRF_SHIFTMASK64(NV##d##r##f(i))) | DRF_IDX_NUM64(d,r,f,i,n)) #define FLD_SET_DRF_IDX64(d,r,f,c,i,v) (((NvU64)(v) & ~DRF_SHIFTMASK64(NV##d##r##f)) | DRF_DEF64(d,r,f,c(i))) #define FLD_TEST_DRF64(d,r,f,c,v) (DRF_VAL64(d, r, f, (v)) == NV##d##r##f##c) #define FLD_TEST_DRF_AND64(d,r,f,c,v) (DRF_VAL64(d, r, f, (v)) & NV##d##r##f##c) #define FLD_TEST_DRF_NUM64(d,r,f,n,v) (DRF_VAL64(d, r, f, (v)) == (n)) #define FLD_IDX_TEST_DRF64(d,r,f,i,c,v) (DRF_IDX_VAL64(d, r, f, i, (v)) == NV##d##r##f##c) #define FLD_IDX_OFFSET_TEST_DRF64(d,r,f,i,o,c,v) (DRF_IDX_OFFSET_VAL64(d, r, f, i, o, (v)) == NV##d##r##f##c) #define REF_DEF64(drf,d) (((drf ## d)&DRF_MASK64(drf))<>DRF_SHIFT64(drf))&DRF_MASK64(drf)) #if defined(NV_MISRA_COMPLIANCE_REQUIRED) && defined(MISRA_14_3) #define REF_NUM64(drf,n) (((NvU64)(n)&(0xFFFFFFFFFFFFFFFFU>>(63U-((drf##_HIGH_FIELD) % 63U)+((drf##_LOW_FIELD) % 63U)))) << ((drf##_LOW_FIELD) % 63U)) #else #define REF_NUM64(drf,n) (((NvU64)(n)&DRF_MASK64(drf))<>DRF_SHIFT(drf))&DRF_MASK(drf)) #if defined(NV_MISRA_COMPLIANCE_REQUIRED) && defined(MISRA_14_3) #define REF_NUM(drf,n) (((n)&(0xFFFFFFFFU>>(31U-((drf##_HIGH_FIELD) % 32U)+((drf##_LOW_FIELD) % 32U)))) << ((drf##_LOW_FIELD) % 32U)) #else #define REF_NUM(drf,n) (((n)&DRF_MASK(drf))<>DRF_SHIFT(CR ## d ## r ## f))&DRF_MASK(CR ## d ## r ## f)) // Multi-word (MW) field manipulations. For multi-word structures (e.g., Fermi SPH), // fields may have bit numbers beyond 32. To avoid errors using "classic" multi-word macros, // all the field extents are defined as "MW(X)". For example, MW(127:96) means // the field is in bits 0-31 of word number 3 of the structure. // // DRF_VAL_MW() macro is meant to be used for native endian 32-bit aligned 32-bit word data, // not for byte stream data. // // DRF_VAL_BS() macro is for byte stream data used in fbQueryBIOS_XXX(). // #define DRF_EXPAND_MW(drf) drf // used to turn "MW(a:b)" into "a:b" #define DRF_PICK_MW(drf,v) ((v)? DRF_EXPAND_##drf) // picks low or high bits #define DRF_WORD_MW(drf) (DRF_PICK_MW(drf,0)/32) // which word in a multi-word array #define DRF_BASE_MW(drf) (DRF_PICK_MW(drf,0)%32) // which start bit in the selected word? #define DRF_EXTENT_MW(drf) (DRF_PICK_MW(drf,1)%32) // which end bit in the selected word #define DRF_SHIFT_MW(drf) (DRF_PICK_MW(drf,0)%32) #define DRF_MASK_MW(drf) (0xFFFFFFFFU>>((31-(DRF_EXTENT_MW(drf))+(DRF_BASE_MW(drf)))%32)) #define DRF_SHIFTMASK_MW(drf) ((DRF_MASK_MW(drf))<<(DRF_SHIFT_MW(drf))) #define DRF_SIZE_MW(drf) (DRF_EXTENT_MW(drf)-DRF_BASE_MW(drf)+1) #define DRF_DEF_MW(d,r,f,c) ((NV##d##r##f##c) << DRF_SHIFT_MW(NV##d##r##f)) #define DRF_NUM_MW(d,r,f,n) (((n)&DRF_MASK_MW(NV##d##r##f))<>DRF_SHIFT_MW(NV##d##r##f))&DRF_MASK_MW(NV##d##r##f)) #define DRF_SPANS(drf) ((DRF_PICK_MW(drf,0)/32) != (DRF_PICK_MW(drf,1)/32)) #define DRF_WORD_MW_LOW(drf) (DRF_PICK_MW(drf,0)/32) #define DRF_WORD_MW_HIGH(drf) (DRF_PICK_MW(drf,1)/32) #define DRF_MASK_MW_LOW(drf) (0xFFFFFFFFU) #define DRF_MASK_MW_HIGH(drf) (0xFFFFFFFFU>>(31-(DRF_EXTENT_MW(drf)))) #define DRF_SHIFT_MW_LOW(drf) (DRF_PICK_MW(drf,0)%32) #define DRF_SHIFT_MW_HIGH(drf) (0) #define DRF_MERGE_SHIFT(drf) ((32-((DRF_PICK_MW(drf,0)%32)))%32) #define DRF_VAL_MW_2WORD(d,r,f,v) (((((v)[DRF_WORD_MW_LOW(NV##d##r##f)])>>DRF_SHIFT_MW_LOW(NV##d##r##f))&DRF_MASK_MW_LOW(NV##d##r##f)) | \ (((((v)[DRF_WORD_MW_HIGH(NV##d##r##f)])>>DRF_SHIFT_MW_HIGH(NV##d##r##f))&DRF_MASK_MW_HIGH(NV##d##r##f)) << DRF_MERGE_SHIFT(NV##d##r##f))) #define DRF_VAL_MW(d,r,f,v) ( DRF_SPANS(NV##d##r##f) ? DRF_VAL_MW_2WORD(d,r,f,v) : DRF_VAL_MW_1WORD(d,r,f,v) ) #define DRF_IDX_DEF_MW(d,r,f,i,c) ((NV##d##r##f##c)<>DRF_SHIFT_MW(NV##d##r##f(i)))&DRF_MASK_MW(NV##d##r##f(i))) // // Logically OR all DRF_DEF constants indexed from zero to s (semiinclusive). // Caution: Target variable v must be pre-initialized. // #define FLD_IDX_OR_DRF_DEF(d,r,f,c,s,v) \ do \ { NvU32 idx; \ for (idx = 0; idx < (NV ## d ## r ## f ## s); ++idx)\ { \ v |= DRF_IDX_DEF(d,r,f,idx,c); \ } \ } while(0) #define FLD_MERGE_MW(drf,n,v) (((v)[DRF_WORD_MW(drf)] & ~DRF_SHIFTMASK_MW(drf)) | n) #define FLD_ASSIGN_MW(drf,n,v) ((v)[DRF_WORD_MW(drf)] = FLD_MERGE_MW(drf, n, v)) #define FLD_IDX_MERGE_MW(drf,i,n,v) (((v)[DRF_WORD_MW(drf(i))] & ~DRF_SHIFTMASK_MW(drf(i))) | n) #define FLD_IDX_ASSIGN_MW(drf,i,n,v) ((v)[DRF_WORD_MW(drf(i))] = FLD_MERGE_MW(drf(i), n, v)) #define FLD_SET_DRF_MW(d,r,f,c,v) FLD_MERGE_MW(NV##d##r##f, DRF_DEF_MW(d,r,f,c), v) #define FLD_SET_DRF_NUM_MW(d,r,f,n,v) FLD_ASSIGN_MW(NV##d##r##f, DRF_NUM_MW(d,r,f,n), v) #define FLD_SET_DRF_DEF_MW(d,r,f,c,v) FLD_ASSIGN_MW(NV##d##r##f, DRF_DEF_MW(d,r,f,c), v) #define FLD_IDX_SET_DRF_MW(d,r,f,i,c,v) FLD_IDX_MERGE_MW(NV##d##r##f, i, DRF_IDX_DEF_MW(d,r,f,i,c), v) #define FLD_IDX_SET_DRF_DEF_MW(d,r,f,i,c,v) FLD_IDX_MERGE_MW(NV##d##r##f, i, DRF_IDX_DEF_MW(d,r,f,i,c), v) #define FLD_IDX_SET_DRF_NUM_MW(d,r,f,i,n,v) FLD_IDX_ASSIGN_MW(NV##d##r##f, i, DRF_IDX_NUM_MW(d,r,f,i,n), v) #define FLD_TEST_DRF_MW(d,r,f,c,v) ((DRF_VAL_MW(d, r, f, (v)) == NV##d##r##f##c)) #define FLD_TEST_DRF_NUM_MW(d,r,f,n,v) ((DRF_VAL_MW(d, r, f, (v)) == n)) #define FLD_IDX_TEST_DRF_MW(d,r,f,i,c,v) ((DRF_IDX_VAL_MW(d, r, f, i, (v)) == NV##d##r##f##c)) #define DRF_VAL_BS(d,r,f,v) ( DRF_SPANS(NV##d##r##f) ? DRF_VAL_BS_2WORD(d,r,f,(v)) : DRF_VAL_BS_1WORD(d,r,f,(v)) ) //------------------------------------------------------------------------// // // // Common defines for engine register reference wrappers // // // // New engine addressing can be created like: // // \#define ENG_REG_PMC(o,d,r) NV##d##r // // \#define ENG_IDX_REG_CE(o,d,i,r) CE_MAP(o,r,i) // // // // See FB_FBPA* for more examples // //------------------------------------------------------------------------// #define ENG_RD_REG(g,o,d,r) GPU_REG_RD32(g, ENG_REG##d(o,d,r)) #define ENG_WR_REG(g,o,d,r,v) GPU_REG_WR32(g, ENG_REG##d(o,d,r), (v)) #define ENG_RD_DRF(g,o,d,r,f) ((GPU_REG_RD32(g, ENG_REG##d(o,d,r))>>GPU_DRF_SHIFT(NV ## d ## r ## f))&GPU_DRF_MASK(NV ## d ## r ## f)) #define ENG_WR_DRF_DEF(g,o,d,r,f,c) GPU_REG_WR32(g, ENG_REG##d(o,d,r),(GPU_REG_RD32(g,ENG_REG##d(o,d,r))&~(GPU_DRF_MASK(NV##d##r##f)<>GPU_DRF_SHIFT(NV ## d ## r ## f))&GPU_DRF_MASK(NV ## d ## r ## f)) #define ENG_TEST_IDX_DRF_DEF(g,o,d,r,f,c,i) (ENG_RD_IDX_DRF(g, o, d, r, f, (i)) == NV##d##r##f##c) #define ENG_IDX_RD_REG(g,o,d,i,r) GPU_REG_RD32(g, ENG_IDX_REG##d(o,d,i,r)) #define ENG_IDX_WR_REG(g,o,d,i,r,v) GPU_REG_WR32(g, ENG_IDX_REG##d(o,d,i,r), (v)) #define ENG_IDX_RD_DRF(g,o,d,i,r,f) ((GPU_REG_RD32(g, ENG_IDX_REG##d(o,d,i,r))>>GPU_DRF_SHIFT(NV ## d ## r ## f))&GPU_DRF_MASK(NV ## d ## r ## f)) // // DRF_READ_1WORD_BS() and DRF_READ_1WORD_BS_HIGH() do not read beyond the bytes that contain // the requested value. Reading beyond the actual data causes a page fault panic when the // immediately following page happened to be protected or not mapped. // #define DRF_VAL_BS_1WORD(d,r,f,v) ((DRF_READ_1WORD_BS(d,r,f,v)>>DRF_SHIFT_MW(NV##d##r##f))&DRF_MASK_MW(NV##d##r##f)) #define DRF_VAL_BS_2WORD(d,r,f,v) (((DRF_READ_4BYTE_BS(NV##d##r##f,v)>>DRF_SHIFT_MW_LOW(NV##d##r##f))&DRF_MASK_MW_LOW(NV##d##r##f)) | \ (((DRF_READ_1WORD_BS_HIGH(d,r,f,v)>>DRF_SHIFT_MW_HIGH(NV##d##r##f))&DRF_MASK_MW_HIGH(NV##d##r##f)) << DRF_MERGE_SHIFT(NV##d##r##f))) #define DRF_READ_1BYTE_BS(drf,v) ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW(drf)*4])) #define DRF_READ_2BYTE_BS(drf,v) (DRF_READ_1BYTE_BS(drf,v)| \ ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW(drf)*4+1])<<8)) #define DRF_READ_3BYTE_BS(drf,v) (DRF_READ_2BYTE_BS(drf,v)| \ ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW(drf)*4+2])<<16)) #define DRF_READ_4BYTE_BS(drf,v) (DRF_READ_3BYTE_BS(drf,v)| \ ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW(drf)*4+3])<<24)) #define DRF_READ_1BYTE_BS_HIGH(drf,v) ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW_HIGH(drf)*4])) #define DRF_READ_2BYTE_BS_HIGH(drf,v) (DRF_READ_1BYTE_BS_HIGH(drf,v)| \ ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW_HIGH(drf)*4+1])<<8)) #define DRF_READ_3BYTE_BS_HIGH(drf,v) (DRF_READ_2BYTE_BS_HIGH(drf,v)| \ ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW_HIGH(drf)*4+2])<<16)) #define DRF_READ_4BYTE_BS_HIGH(drf,v) (DRF_READ_3BYTE_BS_HIGH(drf,v)| \ ((NvU32)(((const NvU8*)(v))[DRF_WORD_MW_HIGH(drf)*4+3])<<24)) // Calculate 2^n - 1 and avoid shift counter overflow // // On Windows amd64, 64 << 64 => 1 // #define NV_TWO_N_MINUS_ONE(n) (((1ULL<<(n/2))<<((n+1)/2))-1) #define DRF_READ_1WORD_BS(d,r,f,v) \ ((DRF_EXTENT_MW(NV##d##r##f)<8)?DRF_READ_1BYTE_BS(NV##d##r##f,(v)): \ ((DRF_EXTENT_MW(NV##d##r##f)<16)?DRF_READ_2BYTE_BS(NV##d##r##f,(v)): \ ((DRF_EXTENT_MW(NV##d##r##f)<24)?DRF_READ_3BYTE_BS(NV##d##r##f,(v)): \ DRF_READ_4BYTE_BS(NV##d##r##f,(v))))) #define DRF_READ_1WORD_BS_HIGH(d,r,f,v) \ ((DRF_EXTENT_MW(NV##d##r##f)<8)?DRF_READ_1BYTE_BS_HIGH(NV##d##r##f,(v)): \ ((DRF_EXTENT_MW(NV##d##r##f)<16)?DRF_READ_2BYTE_BS_HIGH(NV##d##r##f,(v)): \ ((DRF_EXTENT_MW(NV##d##r##f)<24)?DRF_READ_3BYTE_BS_HIGH(NV##d##r##f,(v)): \ DRF_READ_4BYTE_BS_HIGH(NV##d##r##f,(v))))) #define LOWESTBIT(x) ( (x) & (((x) - 1U) ^ (x)) ) // Destructive operation on n32 #define HIGHESTBIT(n32) \ { \ HIGHESTBITIDX_32(n32); \ n32 = NVBIT(n32); \ } #define ONEBITSET(x) ( ((x) != 0U) && (((x) & ((x) - 1U)) == 0U) ) // Destructive operation on n32 #define NUMSETBITS_32(n32) \ { \ n32 = n32 - ((n32 >> 1) & 0x55555555); \ n32 = (n32 & 0x33333333) + ((n32 >> 2) & 0x33333333); \ n32 = (((n32 + (n32 >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24; \ } /*! * Calculate number of bits set in a 32-bit unsigned integer. * Pure typesafe alternative to @ref NUMSETBITS_32. */ static NV_FORCEINLINE NvU32 nvPopCount32(const NvU32 x) { NvU32 temp = x; temp = temp - ((temp >> 1) & 0x55555555U); temp = (temp & 0x33333333U) + ((temp >> 2) & 0x33333333U); temp = (((temp + (temp >> 4)) & 0x0F0F0F0FU) * 0x01010101U) >> 24; return temp; } /*! * Calculate number of bits set in a 64-bit unsigned integer. */ static NV_FORCEINLINE NvU32 nvPopCount64(const NvU64 x) { NvU64 temp = x; temp = temp - ((temp >> 1) & 0x5555555555555555ULL); temp = (temp & 0x3333333333333333ULL) + ((temp >> 2) & 0x3333333333333333ULL); temp = (temp + (temp >> 4)) & 0x0F0F0F0F0F0F0F0FULL; temp = (temp * 0x0101010101010101ULL) >> 56; return (NvU32)temp; } /*! * Determine how many bits are set below a bit index within a mask. * This assigns a dense ordering to the set bits in the mask. * * For example the mask 0xCD contains 5 set bits: * nvMaskPos32(0xCD, 0) == 0 * nvMaskPos32(0xCD, 2) == 1 * nvMaskPos32(0xCD, 3) == 2 * nvMaskPos32(0xCD, 6) == 3 * nvMaskPos32(0xCD, 7) == 4 */ static NV_FORCEINLINE NvU32 nvMaskPos32(const NvU32 mask, const NvU32 bitIdx) { return nvPopCount32(mask & (NVBIT32(bitIdx) - 1U)); } // Destructive operation on n32 #define LOWESTBITIDX_32(n32) \ { \ n32 = BIT_IDX_32(LOWESTBIT(n32));\ } // Destructive operation on n32 #define HIGHESTBITIDX_32(n32) \ { \ NvU32 count = 0; \ while (n32 >>= 1) \ { \ count++; \ } \ n32 = count; \ } // Destructive operation on n32 #define ROUNDUP_POW2(n32) \ { \ n32--; \ n32 |= n32 >> 1; \ n32 |= n32 >> 2; \ n32 |= n32 >> 4; \ n32 |= n32 >> 8; \ n32 |= n32 >> 16; \ n32++; \ } /*! * Round up a 32-bit unsigned integer to the next power of 2. * Pure typesafe alternative to @ref ROUNDUP_POW2. * * param[in] x must be in range [0, 2^31] to avoid overflow. */ static NV_FORCEINLINE NvU32 nvNextPow2_U32(const NvU32 x) { NvU32 y = x; y--; y |= y >> 1; y |= y >> 2; y |= y >> 4; y |= y >> 8; y |= y >> 16; y++; return y; } static NV_FORCEINLINE NvU32 nvPrevPow2_U32(const NvU32 x ) { NvU32 y = x; y |= (y >> 1); y |= (y >> 2); y |= (y >> 4); y |= (y >> 8); y |= (y >> 16); return y - (y >> 1); } static NV_FORCEINLINE NvU64 nvPrevPow2_U64(const NvU64 x ) { NvU64 y = x; y |= (y >> 1); y |= (y >> 2); y |= (y >> 4); y |= (y >> 8); y |= (y >> 16); y |= (y >> 32); return y - (y >> 1); } // Destructive operation on n64 #define ROUNDUP_POW2_U64(n64) \ { \ n64--; \ n64 |= n64 >> 1; \ n64 |= n64 >> 2; \ n64 |= n64 >> 4; \ n64 |= n64 >> 8; \ n64 |= n64 >> 16; \ n64 |= n64 >> 32; \ n64++; \ } #define NV_SWAP_U8(a,b) \ { \ NvU8 temp; \ temp = a; \ a = b; \ b = temp; \ } #define NV_SWAP_U32(a,b) \ { \ NvU32 temp; \ temp = a; \ a = b; \ b = temp; \ } /*! * @brief Macros allowing simple iteration over bits set in a given mask. * * @param[in] maskWidth bit-width of the mask (allowed: 8, 16, 32, 64) * * @param[in,out] index lvalue that is used as a bit index in the loop * (can be declared as any NvU* or NvS* variable) * @param[in] mask expression, loop will iterate over set bits only */ #define FOR_EACH_INDEX_IN_MASK(maskWidth,index,mask) \ { \ NvU##maskWidth lclMsk = (NvU##maskWidth)(mask); \ for ((index) = 0U; lclMsk != 0U; (index)++, lclMsk >>= 1U)\ { \ if (((NvU##maskWidth)NVBIT64(0) & lclMsk) == 0U) \ { \ continue; \ } #define FOR_EACH_INDEX_IN_MASK_END \ } \ } // // Size to use when declaring variable-sized arrays // #define NV_ANYSIZE_ARRAY 1 // // Returns ceil(a/b) // #define NV_CEIL(a,b) (((a)+(b)-1)/(b)) // Clearer name for NV_CEIL #ifndef NV_DIV_AND_CEIL #define NV_DIV_AND_CEIL(a, b) NV_CEIL(a,b) #endif #ifndef NV_MIN #define NV_MIN(a, b) (((a) < (b)) ? (a) : (b)) #endif #ifndef NV_MAX #define NV_MAX(a, b) (((a) > (b)) ? (a) : (b)) #endif // // Returns absolute value of provided integer expression // #define NV_ABS(a) ((a)>=0?(a):(-(a))) // // Returns 1 if input number is positive, 0 if 0 and -1 if negative. Avoid // macro parameter as function call which will have side effects. // #define NV_SIGN(s) ((NvS8)(((s) > 0) - ((s) < 0))) // // Returns 1 if input number is >= 0 or -1 otherwise. This assumes 0 has a // positive sign. // #define NV_ZERO_SIGN(s) ((NvS8)((((s) >= 0) * 2) - 1)) // Returns the offset (in bytes) of 'member' in struct 'type'. #ifndef NV_OFFSETOF #if defined(__GNUC__) && (__GNUC__ > 3) #define NV_OFFSETOF(type, member) ((NvU32)__builtin_offsetof(type, member)) #else #define NV_OFFSETOF(type, member) ((NvU32)(NvU64)&(((type *)0)->member)) // shouldn't we use PtrToUlong? But will need to include windows header. #endif #endif // // Performs a rounded division of b into a (unsigned). For SIGNED version of // NV_ROUNDED_DIV() macro check the comments in bug 769777. // #define NV_UNSIGNED_ROUNDED_DIV(a,b) (((a) + ((b) / 2U)) / (b)) /*! * Performs a ceiling division of b into a (unsigned). A "ceiling" division is * a division is one with rounds up result up if a % b != 0. * * @param[in] a Numerator * @param[in] b Denominator * * @return a / b + a % b != 0 ? 1 : 0. */ #define NV_UNSIGNED_DIV_CEIL(a, b) (((a) + (b - 1)) / (b)) /*! * Performs subtraction where a negative difference is raised to zero. * Can be used to avoid underflowing an unsigned subtraction. * * @param[in] a Minuend * @param[in] b Subtrahend * * @return a > b ? a - b : 0. */ #define NV_SUBTRACT_NO_UNDERFLOW(a, b) ((a)>(b) ? (a)-(b) : 0) /*! * Performs a rounded right-shift of 32-bit unsigned value "a" by "shift" bits. * Will round result away from zero. * * @param[in] a 32-bit unsigned value to shift. * @param[in] shift Number of bits by which to shift. * * @return Resulting shifted value rounded away from zero. */ #define NV_RIGHT_SHIFT_ROUNDED(a, shift) \ (((a) >> (shift)) + !!((NVBIT((shift) - 1) & (a)) == NVBIT((shift) - 1))) // // Power of 2 alignment. // (Will give unexpected results if 'gran' is not a power of 2.) // #ifndef NV_ALIGN_DOWN // // Notably using v - v + gran ensures gran gets promoted to the same type as v if gran has a smaller type. // Otherwise, if aligning a NVU64 with NVU32 granularity, the top 4 bytes get zeroed. // #define NV_ALIGN_DOWN(v, gran) ((v) & ~((v) - (v) + (gran) - 1)) #endif #ifndef NV_ALIGN_UP // // Notably using v - v + gran ensures gran gets promoted to the same type as v if gran has a smaller type. // Otherwise, if aligning a NVU64 with NVU32 granularity, the top 4 bytes get zeroed. // #define NV_ALIGN_UP(v, gran) (((v) + ((gran) - 1)) & ~((v) - (v) + (gran) - 1)) #endif #ifndef NV_ALIGN_DOWN64 #define NV_ALIGN_DOWN64(v, gran) ((v) & ~(((NvU64)gran) - 1)) #endif #ifndef NV_ALIGN_UP64 #define NV_ALIGN_UP64(v, gran) (((v) + ((gran) - 1)) & ~(((NvU64)gran)-1)) #endif #ifndef NV_IS_ALIGNED #define NV_IS_ALIGNED(v, gran) (0U == ((v) & ((gran) - 1U))) #endif #ifndef NV_IS_ALIGNED64 #define NV_IS_ALIGNED64(v, gran) (0U == ((v) & (((NvU64)gran) - 1U))) #endif #ifndef NVMISC_MEMSET static NV_FORCEINLINE void *NVMISC_MEMSET(void *s, NvU8 c, NvLength n) { NvU8 *b = (NvU8 *) s; NvLength i; for (i = 0; i < n; i++) { b[i] = c; } return s; } #endif #ifndef NVMISC_MEMCPY static NV_FORCEINLINE void *NVMISC_MEMCPY(void *dest, const void *src, NvLength n) { NvU8 *destByte = (NvU8 *) dest; const NvU8 *srcByte = (const NvU8 *) src; NvLength i; for (i = 0; i < n; i++) { destByte[i] = srcByte[i]; } return dest; } #endif static NV_FORCEINLINE char *NVMISC_STRNCPY(char *dest, const char *src, NvLength n) { NvLength i; for (i = 0; i < n; i++) { dest[i] = src[i]; if (src[i] == '\0') { break; } } for (; i < n; i++) { dest[i] = '\0'; } return dest; } /*! * Convert a void* to an NvUPtr. This is used when MISRA forbids us from doing a direct cast. * * @param[in] ptr Pointer to be converted * * @return Resulting NvUPtr */ static NV_FORCEINLINE NvUPtr NV_PTR_TO_NVUPTR(void *ptr) { union { NvUPtr v; void *p; } uAddr; uAddr.p = ptr; return uAddr.v; } /*! * Convert an NvUPtr to a void*. This is used when MISRA forbids us from doing a direct cast. * * @param[in] ptr Pointer to be converted * * @return Resulting void * */ static NV_FORCEINLINE void *NV_NVUPTR_TO_PTR(NvUPtr address) { union { NvUPtr v; void *p; } uAddr; uAddr.v = address; return uAddr.p; } #ifdef __cplusplus } #endif //__cplusplus #endif // __NV_MISC_H