forked from Minki/linux
42238da8b1
For example, use 'struct mdp5_smp *' everywhere instead of 'void *', but only declare it as 'struct mdp5_smp;' in common headers, so the struct body is still private. The accomplishes the desired modularity while still letting the compiler provide some type checking for us. Signed-off-by: Rob Clark <robdclark@gmail.com>
208 lines
4.6 KiB
C
208 lines
4.6 KiB
C
/*
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* Copyright (c) 2014 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "mdp5_kms.h"
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#include "mdp5_cfg.h"
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struct mdp5_cfg_handler {
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int revision;
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struct mdp5_cfg config;
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};
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/* mdp5_cfg must be exposed (used in mdp5.xml.h) */
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const struct mdp5_cfg_hw *mdp5_cfg = NULL;
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const struct mdp5_cfg_hw msm8x74_config = {
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.name = "msm8x74",
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.smp = {
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.mmb_count = 22,
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.mmb_size = 4096,
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},
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.ctl = {
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.count = 5,
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.base = { 0x00600, 0x00700, 0x00800, 0x00900, 0x00a00 },
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},
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.pipe_vig = {
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.count = 3,
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.base = { 0x01200, 0x01600, 0x01a00 },
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},
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.pipe_rgb = {
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.count = 3,
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.base = { 0x01e00, 0x02200, 0x02600 },
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},
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.pipe_dma = {
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.count = 2,
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.base = { 0x02a00, 0x02e00 },
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},
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.lm = {
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.count = 5,
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.base = { 0x03200, 0x03600, 0x03a00, 0x03e00, 0x04200 },
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.nb_stages = 5,
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},
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.dspp = {
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.count = 3,
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.base = { 0x04600, 0x04a00, 0x04e00 },
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},
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.ad = {
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.count = 2,
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.base = { 0x13100, 0x13300 }, /* NOTE: no ad in v1.0 */
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},
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.intf = {
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.count = 4,
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.base = { 0x12500, 0x12700, 0x12900, 0x12b00 },
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},
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.max_clk = 200000000,
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};
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const struct mdp5_cfg_hw apq8084_config = {
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.name = "apq8084",
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.smp = {
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.mmb_count = 44,
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.mmb_size = 8192,
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.reserved_state[0] = GENMASK(7, 0), /* first 8 MMBs */
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.reserved[CID_RGB0] = 2,
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.reserved[CID_RGB1] = 2,
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.reserved[CID_RGB2] = 2,
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.reserved[CID_RGB3] = 2,
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},
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.ctl = {
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.count = 5,
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.base = { 0x00600, 0x00700, 0x00800, 0x00900, 0x00a00 },
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},
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.pipe_vig = {
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.count = 4,
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.base = { 0x01200, 0x01600, 0x01a00, 0x01e00 },
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},
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.pipe_rgb = {
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.count = 4,
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.base = { 0x02200, 0x02600, 0x02a00, 0x02e00 },
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},
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.pipe_dma = {
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.count = 2,
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.base = { 0x03200, 0x03600 },
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},
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.lm = {
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.count = 6,
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.base = { 0x03a00, 0x03e00, 0x04200, 0x04600, 0x04a00, 0x04e00 },
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.nb_stages = 5,
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},
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.dspp = {
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.count = 4,
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.base = { 0x05200, 0x05600, 0x05a00, 0x05e00 },
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},
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.ad = {
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.count = 3,
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.base = { 0x13500, 0x13700, 0x13900 },
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},
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.intf = {
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.count = 5,
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.base = { 0x12500, 0x12700, 0x12900, 0x12b00, 0x12d00 },
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},
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.max_clk = 320000000,
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};
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static const struct mdp5_cfg_handler cfg_handlers[] = {
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{ .revision = 0, .config = { .hw = &msm8x74_config } },
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{ .revision = 2, .config = { .hw = &msm8x74_config } },
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{ .revision = 3, .config = { .hw = &apq8084_config } },
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};
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static struct mdp5_cfg_platform *mdp5_get_config(struct platform_device *dev);
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const struct mdp5_cfg_hw *mdp5_cfg_get_hw_config(struct mdp5_cfg_handler *cfg_handler)
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{
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return cfg_handler->config.hw;
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}
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struct mdp5_cfg *mdp5_cfg_get_config(struct mdp5_cfg_handler *cfg_handler)
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{
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return &cfg_handler->config;
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}
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int mdp5_cfg_get_hw_rev(struct mdp5_cfg_handler *cfg_handler)
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{
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return cfg_handler->revision;
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}
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void mdp5_cfg_destroy(struct mdp5_cfg_handler *cfg_handler)
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{
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kfree(cfg_handler);
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}
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struct mdp5_cfg_handler *mdp5_cfg_init(struct mdp5_kms *mdp5_kms,
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uint32_t major, uint32_t minor)
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{
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struct drm_device *dev = mdp5_kms->dev;
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struct platform_device *pdev = dev->platformdev;
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struct mdp5_cfg_handler *cfg_handler;
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struct mdp5_cfg_platform *pconfig;
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int i, ret = 0;
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cfg_handler = kzalloc(sizeof(*cfg_handler), GFP_KERNEL);
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if (unlikely(!cfg_handler)) {
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ret = -ENOMEM;
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goto fail;
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}
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if (major != 1) {
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dev_err(dev->dev, "unexpected MDP major version: v%d.%d\n",
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major, minor);
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ret = -ENXIO;
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goto fail;
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}
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/* only after mdp5_cfg global pointer's init can we access the hw */
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for (i = 0; i < ARRAY_SIZE(cfg_handlers); i++) {
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if (cfg_handlers[i].revision != minor)
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continue;
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mdp5_cfg = cfg_handlers[i].config.hw;
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break;
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}
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if (unlikely(!mdp5_cfg)) {
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dev_err(dev->dev, "unexpected MDP minor revision: v%d.%d\n",
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major, minor);
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ret = -ENXIO;
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goto fail;
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}
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cfg_handler->revision = minor;
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cfg_handler->config.hw = mdp5_cfg;
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pconfig = mdp5_get_config(pdev);
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memcpy(&cfg_handler->config.platform, pconfig, sizeof(*pconfig));
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DBG("MDP5: %s hw config selected", mdp5_cfg->name);
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return cfg_handler;
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fail:
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if (cfg_handler)
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mdp5_cfg_destroy(cfg_handler);
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return NULL;
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}
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static struct mdp5_cfg_platform *mdp5_get_config(struct platform_device *dev)
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{
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static struct mdp5_cfg_platform config = {};
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#ifdef CONFIG_OF
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/* TODO */
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#endif
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config.iommu = iommu_domain_alloc(&platform_bus_type);
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return &config;
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}
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