From b17d9708c9e9930778de43de1edf1385acb13ebd Mon Sep 17 00:00:00 2001 From: Vijayakumar Subbu Date: Wed, 27 Jul 2016 22:29:15 -0700 Subject: gpu: nvgpu: Add dGPU clocks support JIRA DNVGPU-45 Change-Id: I237ce81e31b036c05c82d46eea8694ffe1c2e3df Signed-off-by: Mahantesh Kumbar Signed-off-by: Vijayakumar Subbu Reviewed-on: http://git-master/r/1205849 (cherry picked from commit 9a4006f76b75a8ad525e7aa5ad1f609aaae49126) Reviewed-on: http://git-master/r/1227256 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/boardobj/boardobjgrpmask.c | 357 +++++++++++++++++++++++++++ 1 file changed, 357 insertions(+) create mode 100644 drivers/gpu/nvgpu/boardobj/boardobjgrpmask.c (limited to 'drivers/gpu/nvgpu/boardobj/boardobjgrpmask.c') diff --git a/drivers/gpu/nvgpu/boardobj/boardobjgrpmask.c b/drivers/gpu/nvgpu/boardobj/boardobjgrpmask.c new file mode 100644 index 00000000..47914038 --- /dev/null +++ b/drivers/gpu/nvgpu/boardobj/boardobjgrpmask.c @@ -0,0 +1,357 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. 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 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. + */ +#include "gk20a/gk20a.h" +#include "boardobjgrp.h" +#include "ctrl/ctrlboardobj.h" + +/* +* Assures that unused bits (size .. (maskDataCount * 32 - 1)) are always zero. +*/ +#define BOARDOBJGRPMASK_NORMALIZE(_pmask) \ + ((_pmask)->data[(_pmask)->maskdatacount-1] &= (_pmask)->lastmaskfilter) + +u32 boardobjgrpmask_init(struct boardobjgrpmask *mask, u8 bitsize, + struct ctrl_boardobjgrp_mask *extmask) +{ + if (mask == NULL) + return -EINVAL; + if ((bitsize != CTRL_BOARDOBJGRP_E32_MAX_OBJECTS) && + (bitsize != CTRL_BOARDOBJGRP_E255_MAX_OBJECTS)) + return -EINVAL; + + mask->bitcount = bitsize; + mask->maskdatacount = CTRL_BOARDOBJGRP_MASK_DATA_SIZE(bitsize); + mask->lastmaskfilter = bitsize % + CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_BIT_SIZE; + + mask->lastmaskfilter = (mask->lastmaskfilter == 0) ? + 0xFFFFFFFF : (u32)(BIT(mask->lastmaskfilter) - 1); + + return (extmask == NULL) ? + boardobjgrpmask_clr(mask) : + boardobjgrpmask_import(mask, bitsize, extmask); +} + +u32 boardobjgrpmask_import(struct boardobjgrpmask *mask, u8 bitsize, + struct ctrl_boardobjgrp_mask *extmask) +{ + u8 index; + + if (mask == NULL) + return -EINVAL; + if (extmask == NULL) + return -EINVAL; + if (mask->bitcount != bitsize) + return -EINVAL; + + for (index = 0; index < mask->maskdatacount; index++) + mask->data[index] = extmask->data[index]; + + BOARDOBJGRPMASK_NORMALIZE(mask); + + return 0; +} + +u32 boardobjgrpmask_export(struct boardobjgrpmask *mask, u8 bitsize, + struct ctrl_boardobjgrp_mask *extmask) +{ + u8 index; + + if (mask == NULL) + return -EINVAL; + if (extmask == NULL) + return -EINVAL; + if (mask->bitcount != bitsize) + return -EINVAL; + + for (index = 0; index < mask->maskdatacount; index++) + extmask->data[index] = mask->data[index]; + + return 0; +} + +u32 boardobjgrpmask_clr(struct boardobjgrpmask *mask) +{ + u8 index; + + if (mask == NULL) + return -EINVAL; + for (index = 0; index < mask->maskdatacount; index++) + mask->data[index] = 0; + + return 0; +} + +u32 boardobjgrpmask_set(struct boardobjgrpmask *mask) +{ + u8 index; + + if (mask == NULL) + return -EINVAL; + for (index = 0; index < mask->maskdatacount; index++) + mask->data[index] = 0xFFFFFFFF; + BOARDOBJGRPMASK_NORMALIZE(mask); + return 0; +} + +u32 boardobjgrpmask_inv(struct boardobjgrpmask *mask) +{ + u8 index; + + if (mask == NULL) + return -EINVAL; + for (index = 0; index < mask->maskdatacount; index++) + mask->data[index] = ~mask->data[index]; + BOARDOBJGRPMASK_NORMALIZE(mask); + return 0; +} + +bool boardobjgrpmask_iszero(struct boardobjgrpmask *mask) +{ + u8 index; + + if (mask == NULL) + return true; + for (index = 0; index < mask->maskdatacount; index++) { + if (mask->data[index] != 0) + return false; + } + return true; +} + +u8 boardobjgrpmask_bitsetcount(struct boardobjgrpmask *mask) +{ + u8 index; + u8 result = 0; + + if (mask == NULL) + return result; + + for (index = 0; index < mask->maskdatacount; index++) { + u32 m = mask->data[index]; + + NUMSETBITS_32(m); + result += (u8)m; + } + + return result; +} + +u8 boardobjgrpmask_bitidxlowest(struct boardobjgrpmask *mask) +{ + u8 index; + u8 result = CTRL_BOARDOBJ_IDX_INVALID; + + if (mask == NULL) + return result; + + for (index = 0; index < mask->maskdatacount; index++) { + u32 m = mask->data[index]; + + if (m != 0) { + LOWESTBITIDX_32(m); + result = (u8)m + index * + CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_BIT_SIZE; + break; + } + } + + return result; +} + +u8 boardobjgrpmask_bitidxhighest(struct boardobjgrpmask *mask) +{ + u8 index; + u8 result = CTRL_BOARDOBJ_IDX_INVALID; + + if (mask == NULL) + return result; + + for (index = 0; index < mask->maskdatacount; index++) { + u32 m = mask->data[index]; + + if (m != 0) { + HIGHESTBITIDX_32(m); + result = (u8)m + index * + CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_BIT_SIZE; + break; + } + } + + return result; +} + +u32 boardobjgrpmask_bitclr(struct boardobjgrpmask *mask, u8 bitidx) +{ + u8 index; + u8 offset; + + if (mask == NULL) + return -EINVAL; + if (bitidx >= mask->bitcount) + return -EINVAL; + + index = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_INDEX(bitidx); + offset = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_OFFSET(bitidx); + + mask->data[index] &= ~BIT(offset); + + return 0; +} + +u32 boardobjgrpmask_bitset(struct boardobjgrpmask *mask, u8 bitidx) +{ + u8 index; + u8 offset; + + if (mask == NULL) + return -EINVAL; + if (bitidx >= mask->bitcount) + return -EINVAL; + + index = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_INDEX(bitidx); + offset = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_OFFSET(bitidx); + + mask->data[index] |= BIT(offset); + + return 0; +} + +u32 boardobjgrpmask_bitinv(struct boardobjgrpmask *mask, u8 bitidx) +{ + u8 index; + u8 offset; + + if (mask == NULL) + return -EINVAL; + if (bitidx >= mask->bitcount) + return -EINVAL; + + index = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_INDEX(bitidx); + offset = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_OFFSET(bitidx); + + mask->data[index] ^= ~BIT(offset); + + return 0; +} + +bool boardobjgrpmask_bitget(struct boardobjgrpmask *mask, u8 bitidx) +{ + u8 index; + u8 offset; + + if (mask == NULL) + return false; + if (bitidx >= mask->bitcount) + return false; + + index = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_INDEX(bitidx); + offset = CTRL_BOARDOBJGRP_MASK_MASK_ELEMENT_OFFSET(bitidx); + + return (mask->data[index] & BIT(offset)) != 0; +} + +u32 boardobjgrpmask_and(struct boardobjgrpmask *dst, + struct boardobjgrpmask *op1, + struct boardobjgrpmask *op2) +{ + u8 index; + + if (!boardobjgrpmask_sizeeq(dst, op1)) + return -EINVAL; + if (!boardobjgrpmask_sizeeq(dst, op2)) + return -EINVAL; + + for (index = 0; index < dst->maskdatacount; index++) + dst->data[index] = op1->data[index] & op2->data[index]; + + return 0; +} + +u32 boardobjgrpmask_or(struct boardobjgrpmask *dst, + struct boardobjgrpmask *op1, + struct boardobjgrpmask *op2) +{ + u8 index; + + if (!boardobjgrpmask_sizeeq(dst, op1)) + return -EINVAL; + if (!boardobjgrpmask_sizeeq(dst, op2)) + return -EINVAL; + + for (index = 0; index < dst->maskdatacount; index++) + dst->data[index] = op1->data[index] | op2->data[index]; + + return 0; +} + +u32 boardobjgrpmask_xor(struct boardobjgrpmask *dst, + struct boardobjgrpmask *op1, + struct boardobjgrpmask *op2) +{ + u8 index; + + if (!boardobjgrpmask_sizeeq(dst, op1)) + return -EINVAL; + if (!boardobjgrpmask_sizeeq(dst, op2)) + return -EINVAL; + + for (index = 0; index < dst->maskdatacount; index++) + dst->data[index] = op1->data[index] ^ op2->data[index]; + + return 0; +} + +u32 boardobjgrpmask_copy(struct boardobjgrpmask *dst, + struct boardobjgrpmask *src) +{ + u8 index; + + if (!boardobjgrpmask_sizeeq(dst, src)) + return -EINVAL; + + for (index = 0; index < dst->maskdatacount; index++) + dst->data[index] = src->data[index]; + + return 0; +} + +bool boardobjgrpmask_sizeeq(struct boardobjgrpmask *op1, + struct boardobjgrpmask *op2) +{ + if (op1 == NULL) + return false; + if (op2 == NULL) + return false; + + return op1->bitcount == op2->bitcount; +} + +bool boardobjgrpmask_issubset(struct boardobjgrpmask *op1, + struct boardobjgrpmask *op2) +{ + u8 index; + + if (!boardobjgrpmask_sizeeq(op2, op1)) + return false; + + for (index = 0; index < op1->maskdatacount; index++) { + u32 op_1 = op1->data[index]; + u32 op_2 = op2->data[index]; + + if ((op_1 & op_2) != op_1) + return false; + } + + return true; +} -- cgit v1.2.2