cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/platform/s5p-g2d/g2d-hw.c

/*
 * Samsung S5P G2D - 2D Graphics Accelerator Driver
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Kamil Debski, <k.debski@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version
 */

#include <linux/io.h>

#include "g2d.h"
#include "g2d-regs.h"


#define w(x, a)	writel((x), d->regs + (a))

#define r(a)	readl(d->regs + (a))

/* g2d_reset clears all g2d registers */

void g2d_reset(struct g2d_dev *d) { w(1, SOFT_RESET_REG); }

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kamil debskikamil debski17100.00%1100.00%
Total17100.00%1100.00%


void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f) { u32 n; w(0, SRC_SELECT_REG); w(f->stride & 0xFFFF, SRC_STRIDE_REG); n = f->o_height & 0xFFF; n <<= 16; n |= f->o_width & 0xFFF; w(n, SRC_LEFT_TOP_REG); n = f->bottom & 0xFFF; n <<= 16; n |= f->right & 0xFFF; w(n, SRC_RIGHT_BOTTOM_REG); w(f->fmt->hw, SRC_COLOR_MODE_REG); }

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kamil debskikamil debski9493.07%150.00%
sachin kamatsachin kamat76.93%150.00%
Total101100.00%2100.00%


void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a) { w(a, SRC_BASE_ADDR_REG); }

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kamil debskikamil debski20100.00%1100.00%
Total20100.00%1100.00%


void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f) { u32 n; w(0, DST_SELECT_REG); w(f->stride & 0xFFFF, DST_STRIDE_REG); n = f->o_height & 0xFFF; n <<= 16; n |= f->o_width & 0xFFF; w(n, DST_LEFT_TOP_REG); n = f->bottom & 0xFFF; n <<= 16; n |= f->right & 0xFFF; w(n, DST_RIGHT_BOTTOM_REG); w(f->fmt->hw, DST_COLOR_MODE_REG); }

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kamil debskikamil debski9493.07%150.00%
sachin kamatsachin kamat76.93%150.00%
Total101100.00%2100.00%


void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a) { w(a, DST_BASE_ADDR_REG); }

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kamil debskikamil debski20100.00%1100.00%
Total20100.00%1100.00%


void g2d_set_rop4(struct g2d_dev *d, u32 r) { w(r, ROP4_REG); }

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kamil debskikamil debski20100.00%1100.00%
Total20100.00%1100.00%


void g2d_set_flip(struct g2d_dev *d, u32 r) { w(r, SRC_MSK_DIRECT_REG); }

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sachin kamatsachin kamat20100.00%1100.00%
Total20100.00%1100.00%


void g2d_set_v41_stretch(struct g2d_dev *d, struct g2d_frame *src, struct g2d_frame *dst) { w(DEFAULT_SCALE_MODE, SRC_SCALE_CTRL_REG); /* inversed scaling factor: src is numerator */ w((src->c_width << 16) / dst->c_width, SRC_XSCALE_REG); w((src->c_height << 16) / dst->c_height, SRC_YSCALE_REG); }

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sachin kamatsachin kamat5690.32%150.00%
kamil debskikamil debski69.68%150.00%
Total62100.00%2100.00%


void g2d_set_cmd(struct g2d_dev *d, u32 c) { w(c, BITBLT_COMMAND_REG); }

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kamil debskikamil debski20100.00%1100.00%
Total20100.00%1100.00%


void g2d_start(struct g2d_dev *d) { /* Clear cache */ if (d->variant->hw_rev == TYPE_G2D_3X) w(0x7, CACHECTL_REG); /* Enable interrupt */ w(1, INTEN_REG); /* Start G2D engine */ w(1, BITBLT_START_REG); }

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kamil debskikamil debski3477.27%150.00%
sachin kamatsachin kamat1022.73%150.00%
Total44100.00%2100.00%


void g2d_clear_int(struct g2d_dev *d) { w(1, INTC_PEND_REG); }

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kamil debskikamil debski17100.00%1100.00%
Total17100.00%1100.00%


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PersonTokensPropCommitsCommitProp
kamil debskikamil debski36978.68%133.33%
sachin kamatsachin kamat10021.32%266.67%
Total469100.00%3100.00%
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