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linux-stable/drivers/gpu/drm/meson/meson_viu.c
Thomas Gleixner 1ccea77e2a treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 
Based on 2 normalized pattern(s):

  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 this program is distributed in the
  hope that 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 you
  should have received a copy of the gnu general public license along
  with this program if not see http www gnu org licenses

  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 this program is distributed in the
  hope that 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 [based]
  [from] [clk] [highbank] [c] you should have received a copy of the
  gnu general public license along with this program if not see http
  www gnu org licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 355 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:45 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2016 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
* Copyright (C) 2014 Endless Mobile
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <drm/drmP.h>
#include "meson_drv.h"
#include "meson_viu.h"
#include "meson_vpp.h"
#include "meson_venc.h"
#include "meson_registers.h"
/**
* DOC: Video Input Unit
*
* VIU Handles the Pixel scanout and the basic Colorspace conversions
* We handle the following features :
*
* - OSD1 RGB565/RGB888/xRGB8888 scanout
* - RGB conversion to x/cb/cr
* - Progressive or Interlace buffer scanout
* - OSD1 Commit on Vsync
* - HDR OSD matrix for GXL/GXM
*
* What is missing :
*
* - BGR888/xBGR8888/BGRx8888/BGRx8888 modes
* - YUV4:2:2 Y0CbY1Cr scanout
* - Conversion to YUV 4:4:4 from 4:2:2 input
* - Colorkey Alpha matching
* - Big endian scanout
* - X/Y reverse scanout
* - Global alpha setup
* - OSD2 support, would need interlace switching on vsync
* - OSD1 full scaling to support TV overscan
*/
/* OSD csc defines */
enum viu_matrix_sel_e {
VIU_MATRIX_OSD_EOTF = 0,
VIU_MATRIX_OSD,
};
enum viu_lut_sel_e {
VIU_LUT_OSD_EOTF = 0,
VIU_LUT_OSD_OETF,
};
#define COEFF_NORM(a) ((int)((((a) * 2048.0) + 1) / 2))
#define MATRIX_5X3_COEF_SIZE 24
#define EOTF_COEFF_NORM(a) ((int)((((a) * 4096.0) + 1) / 2))
#define EOTF_COEFF_SIZE 10
#define EOTF_COEFF_RIGHTSHIFT 1
static int RGB709_to_YUV709l_coeff[MATRIX_5X3_COEF_SIZE] = {
0, 0, 0, /* pre offset */
COEFF_NORM(0.181873), COEFF_NORM(0.611831), COEFF_NORM(0.061765),
COEFF_NORM(-0.100251), COEFF_NORM(-0.337249), COEFF_NORM(0.437500),
COEFF_NORM(0.437500), COEFF_NORM(-0.397384), COEFF_NORM(-0.040116),
0, 0, 0, /* 10'/11'/12' */
0, 0, 0, /* 20'/21'/22' */
64, 512, 512, /* offset */
0, 0, 0 /* mode, right_shift, clip_en */
};
/* eotf matrix: bypass */
static int eotf_bypass_coeff[EOTF_COEFF_SIZE] = {
EOTF_COEFF_NORM(1.0), EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(0.0),
EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(1.0), EOTF_COEFF_NORM(0.0),
EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(1.0),
EOTF_COEFF_RIGHTSHIFT /* right shift */
};
static void meson_viu_set_g12a_osd1_matrix(struct meson_drm *priv,
int *m, bool csc_on)
{
/* VPP WRAP OSD1 matrix */
writel(((m[0] & 0xfff) << 16) | (m[1] & 0xfff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_PRE_OFFSET0_1));
writel(m[2] & 0xfff,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_PRE_OFFSET2));
writel(((m[3] & 0x1fff) << 16) | (m[4] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF00_01));
writel(((m[5] & 0x1fff) << 16) | (m[6] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF02_10));
writel(((m[7] & 0x1fff) << 16) | (m[8] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF11_12));
writel(((m[9] & 0x1fff) << 16) | (m[10] & 0x1fff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF20_21));
writel((m[11] & 0x1fff) << 16,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF22));
writel(((m[18] & 0xfff) << 16) | (m[19] & 0xfff),
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_OFFSET0_1));
writel(m[20] & 0xfff,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_OFFSET2));
writel_bits_relaxed(BIT(0), csc_on ? BIT(0) : 0,
priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_EN_CTRL));
}
static void meson_viu_set_osd_matrix(struct meson_drm *priv,
enum viu_matrix_sel_e m_select,
int *m, bool csc_on)
{
if (m_select == VIU_MATRIX_OSD) {
/* osd matrix, VIU_MATRIX_0 */
writel(((m[0] & 0xfff) << 16) | (m[1] & 0xfff),
priv->io_base + _REG(VIU_OSD1_MATRIX_PRE_OFFSET0_1));
writel(m[2] & 0xfff,
priv->io_base + _REG(VIU_OSD1_MATRIX_PRE_OFFSET2));
writel(((m[3] & 0x1fff) << 16) | (m[4] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF00_01));
writel(((m[5] & 0x1fff) << 16) | (m[6] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF02_10));
writel(((m[7] & 0x1fff) << 16) | (m[8] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF11_12));
writel(((m[9] & 0x1fff) << 16) | (m[10] & 0x1fff),
priv->io_base + _REG(VIU_OSD1_MATRIX_COEF20_21));
if (m[21]) {
writel(((m[11] & 0x1fff) << 16) | (m[12] & 0x1fff),
priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF22_30));
writel(((m[13] & 0x1fff) << 16) | (m[14] & 0x1fff),
priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF31_32));
writel(((m[15] & 0x1fff) << 16) | (m[16] & 0x1fff),
priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF40_41));
writel(m[17] & 0x1fff, priv->io_base +
_REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
} else
writel((m[11] & 0x1fff) << 16, priv->io_base +
_REG(VIU_OSD1_MATRIX_COEF22_30));
writel(((m[18] & 0xfff) << 16) | (m[19] & 0xfff),
priv->io_base + _REG(VIU_OSD1_MATRIX_OFFSET0_1));
writel(m[20] & 0xfff,
priv->io_base + _REG(VIU_OSD1_MATRIX_OFFSET2));
writel_bits_relaxed(3 << 30, m[21] << 30,
priv->io_base + _REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
writel_bits_relaxed(7 << 16, m[22] << 16,
priv->io_base + _REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
/* 23 reserved for clipping control */
writel_bits_relaxed(BIT(0), csc_on ? BIT(0) : 0,
priv->io_base + _REG(VIU_OSD1_MATRIX_CTRL));
writel_bits_relaxed(BIT(1), 0,
priv->io_base + _REG(VIU_OSD1_MATRIX_CTRL));
} else if (m_select == VIU_MATRIX_OSD_EOTF) {
int i;
/* osd eotf matrix, VIU_MATRIX_OSD_EOTF */
for (i = 0; i < 5; i++)
writel(((m[i * 2] & 0x1fff) << 16) |
(m[i * 2 + 1] & 0x1fff), priv->io_base +
_REG(VIU_OSD1_EOTF_CTL + i + 1));
writel_bits_relaxed(BIT(30), csc_on ? BIT(30) : 0,
priv->io_base + _REG(VIU_OSD1_EOTF_CTL));
writel_bits_relaxed(BIT(31), csc_on ? BIT(31) : 0,
priv->io_base + _REG(VIU_OSD1_EOTF_CTL));
}
}
#define OSD_EOTF_LUT_SIZE 33
#define OSD_OETF_LUT_SIZE 41
static void
meson_viu_set_osd_lut(struct meson_drm *priv, enum viu_lut_sel_e lut_sel,
unsigned int *r_map, unsigned int *g_map,
unsigned int *b_map, bool csc_on)
{
unsigned int addr_port;
unsigned int data_port;
unsigned int ctrl_port;
int i;
if (lut_sel == VIU_LUT_OSD_EOTF) {
addr_port = VIU_OSD1_EOTF_LUT_ADDR_PORT;
data_port = VIU_OSD1_EOTF_LUT_DATA_PORT;
ctrl_port = VIU_OSD1_EOTF_CTL;
} else if (lut_sel == VIU_LUT_OSD_OETF) {
addr_port = VIU_OSD1_OETF_LUT_ADDR_PORT;
data_port = VIU_OSD1_OETF_LUT_DATA_PORT;
ctrl_port = VIU_OSD1_OETF_CTL;
} else
return;
if (lut_sel == VIU_LUT_OSD_OETF) {
writel(0, priv->io_base + _REG(addr_port));
for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
writel(r_map[i * 2] | (r_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(r_map[OSD_OETF_LUT_SIZE - 1] | (g_map[0] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
writel(g_map[i * 2 + 1] | (g_map[i * 2 + 2] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
writel(b_map[i * 2] | (b_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(b_map[OSD_OETF_LUT_SIZE - 1],
priv->io_base + _REG(data_port));
if (csc_on)
writel_bits_relaxed(0x7 << 29, 7 << 29,
priv->io_base + _REG(ctrl_port));
else
writel_bits_relaxed(0x7 << 29, 0,
priv->io_base + _REG(ctrl_port));
} else if (lut_sel == VIU_LUT_OSD_EOTF) {
writel(0, priv->io_base + _REG(addr_port));
for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
writel(r_map[i * 2] | (r_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(r_map[OSD_EOTF_LUT_SIZE - 1] | (g_map[0] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
writel(g_map[i * 2 + 1] | (g_map[i * 2 + 2] << 16),
priv->io_base + _REG(data_port));
for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
writel(b_map[i * 2] | (b_map[i * 2 + 1] << 16),
priv->io_base + _REG(data_port));
writel(b_map[OSD_EOTF_LUT_SIZE - 1],
priv->io_base + _REG(data_port));
if (csc_on)
writel_bits_relaxed(7 << 27, 7 << 27,
priv->io_base + _REG(ctrl_port));
else
writel_bits_relaxed(7 << 27, 0,
priv->io_base + _REG(ctrl_port));
writel_bits_relaxed(BIT(31), BIT(31),
priv->io_base + _REG(ctrl_port));
}
}
/* eotf lut: linear */
static unsigned int eotf_33_linear_mapping[OSD_EOTF_LUT_SIZE] = {
0x0000, 0x0200, 0x0400, 0x0600,
0x0800, 0x0a00, 0x0c00, 0x0e00,
0x1000, 0x1200, 0x1400, 0x1600,
0x1800, 0x1a00, 0x1c00, 0x1e00,
0x2000, 0x2200, 0x2400, 0x2600,
0x2800, 0x2a00, 0x2c00, 0x2e00,
0x3000, 0x3200, 0x3400, 0x3600,
0x3800, 0x3a00, 0x3c00, 0x3e00,
0x4000
};
/* osd oetf lut: linear */
static unsigned int oetf_41_linear_mapping[OSD_OETF_LUT_SIZE] = {
0, 0, 0, 0,
0, 32, 64, 96,
128, 160, 196, 224,
256, 288, 320, 352,
384, 416, 448, 480,
512, 544, 576, 608,
640, 672, 704, 736,
768, 800, 832, 864,
896, 928, 960, 992,
1023, 1023, 1023, 1023,
1023
};
static void meson_viu_load_matrix(struct meson_drm *priv)
{
/* eotf lut bypass */
meson_viu_set_osd_lut(priv, VIU_LUT_OSD_EOTF,
eotf_33_linear_mapping, /* R */
eotf_33_linear_mapping, /* G */
eotf_33_linear_mapping, /* B */
false);
/* eotf matrix bypass */
meson_viu_set_osd_matrix(priv, VIU_MATRIX_OSD_EOTF,
eotf_bypass_coeff,
false);
/* oetf lut bypass */
meson_viu_set_osd_lut(priv, VIU_LUT_OSD_OETF,
oetf_41_linear_mapping, /* R */
oetf_41_linear_mapping, /* G */
oetf_41_linear_mapping, /* B */
false);
/* osd matrix RGB709 to YUV709 limit */
meson_viu_set_osd_matrix(priv, VIU_MATRIX_OSD,
RGB709_to_YUV709l_coeff,
true);
}
/* VIU OSD1 Reset as workaround for GXL+ Alpha OSD Bug */
void meson_viu_osd1_reset(struct meson_drm *priv)
{
uint32_t osd1_fifo_ctrl_stat, osd1_ctrl_stat2;
/* Save these 2 registers state */
osd1_fifo_ctrl_stat = readl_relaxed(
priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
osd1_ctrl_stat2 = readl_relaxed(
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
/* Reset OSD1 */
writel_bits_relaxed(BIT(0), BIT(0),
priv->io_base + _REG(VIU_SW_RESET));
writel_bits_relaxed(BIT(0), 0,
priv->io_base + _REG(VIU_SW_RESET));
/* Rewrite these registers state lost in the reset */
writel_relaxed(osd1_fifo_ctrl_stat,
priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
writel_relaxed(osd1_ctrl_stat2,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
/* Reload the conversion matrix */
meson_viu_load_matrix(priv);
}
void meson_viu_init(struct meson_drm *priv)
{
uint32_t reg;
/* Disable OSDs */
writel_bits_relaxed(BIT(0) | BIT(21), 0,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT));
writel_bits_relaxed(BIT(0) | BIT(21), 0,
priv->io_base + _REG(VIU_OSD2_CTRL_STAT));
/* On GXL/GXM, Use the 10bit HDR conversion matrix */
if (meson_vpu_is_compatible(priv, "amlogic,meson-gxm-vpu") ||
meson_vpu_is_compatible(priv, "amlogic,meson-gxl-vpu"))
meson_viu_load_matrix(priv);
else if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu"))
meson_viu_set_g12a_osd1_matrix(priv, RGB709_to_YUV709l_coeff,
true);
/* Initialize OSD1 fifo control register */
reg = BIT(0) | /* Urgent DDR request priority */
(4 << 5); /* hold_fifo_lines */
if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu"))
reg |= (1 << 10) | /* burst length 32 */
(32 << 12) | /* fifo_depth_val: 32*8=256 */
(2 << 22) | /* 4 words in 1 burst */
(2 << 24) |
(1 << 31);
else
reg |= (3 << 10) | /* burst length 64 */
(32 << 12) | /* fifo_depth_val: 32*8=256 */
(2 << 22) | /* 4 words in 1 burst */
(2 << 24);
writel_relaxed(reg, priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
writel_relaxed(reg, priv->io_base + _REG(VIU_OSD2_FIFO_CTRL_STAT));
/* Set OSD alpha replace value */
writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT,
0xff << OSD_REPLACE_SHIFT,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT,
0xff << OSD_REPLACE_SHIFT,
priv->io_base + _REG(VIU_OSD2_CTRL_STAT2));
/* Disable VD1 AFBC */
/* di_mif0_en=0 mif0_to_vpp_en=0 di_mad_en=0 */
writel_bits_relaxed(0x7 << 16, 0,
priv->io_base + _REG(VIU_MISC_CTRL0));
/* afbc vd1 set=0 */
writel_bits_relaxed(BIT(20), 0,
priv->io_base + _REG(VIU_MISC_CTRL0));
writel_relaxed(0, priv->io_base + _REG(AFBC_ENABLE));
writel_relaxed(0x00FF00C0,
priv->io_base + _REG(VD1_IF0_LUMA_FIFO_SIZE));
writel_relaxed(0x00FF00C0,
priv->io_base + _REG(VD2_IF0_LUMA_FIFO_SIZE));
if (meson_vpu_is_compatible(priv, "amlogic,meson-g12a-vpu")) {
writel_relaxed(4 << 29 |
1 << 27 |
1 << 26 | /* blend_din0 input to blend0 */
1 << 25 | /* blend1_dout to blend2 */
1 << 24 | /* blend1_din3 input to blend1 */
1 << 20 |
0 << 16 |
1,
priv->io_base + _REG(VIU_OSD_BLEND_CTRL));
writel_relaxed(3 << 8 |
1 << 20,
priv->io_base + _REG(OSD1_BLEND_SRC_CTRL));
writel_relaxed(1 << 20,
priv->io_base + _REG(OSD2_BLEND_SRC_CTRL));
writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL));
writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL));
writel_relaxed(0,
priv->io_base + _REG(VIU_OSD_BLEND_DUMMY_DATA0));
writel_relaxed(0,
priv->io_base + _REG(VIU_OSD_BLEND_DUMMY_ALPHA));
writel_bits_relaxed(0x3 << 2, 0x3 << 2,
priv->io_base + _REG(DOLBY_PATH_CTRL));
}
priv->viu.osd1_enabled = false;
priv->viu.osd1_commit = false;
priv->viu.osd1_interlace = false;
}
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