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/*
* Copyright (C) 2013-2014 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* Copyright (c) 2014,2017 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* 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/>.
*/
#include <linux/pm_opp.h>
#include "adreno_gpu.h"
#define ANY_ID 0xff
bool hang_debug = false;
MODULE_PARM_DESC(hang_debug, "Dump registers when hang is detected (can be slow!)");
module_param_named(hang_debug, hang_debug, bool, 0600);
static const struct adreno_info gpulist[] = {
{
.rev = ADRENO_REV(3, 0, 5, ANY_ID),
.revn = 305,
.name = "A305",
.pm4fw = "a300_pm4.fw",
.pfpfw = "a300_pfp.fw",
.gmem = SZ_256K,
.init = a3xx_gpu_init,
}, {
.rev = ADRENO_REV(3, 0, 6, 0),
.revn = 307, /* because a305c is revn==306 */
.name = "A306",
.pm4fw = "a300_pm4.fw",
.pfpfw = "a300_pfp.fw",
.gmem = SZ_128K,
.init = a3xx_gpu_init,
}, {
.rev = ADRENO_REV(3, 2, ANY_ID, ANY_ID),
.revn = 320,
.name = "A320",
.pm4fw = "a300_pm4.fw",
.pfpfw = "a300_pfp.fw",
.gmem = SZ_512K,
.init = a3xx_gpu_init,
}, {
.rev = ADRENO_REV(3, 3, 0, ANY_ID),
.revn = 330,
.name = "A330",
.pm4fw = "a330_pm4.fw",
.pfpfw = "a330_pfp.fw",
.gmem = SZ_1M,
.init = a3xx_gpu_init,
}, {
.rev = ADRENO_REV(4, 2, 0, ANY_ID),
.revn = 420,
.name = "A420",
.pm4fw = "a420_pm4.fw",
.pfpfw = "a420_pfp.fw",
.gmem = (SZ_1M + SZ_512K),
.init = a4xx_gpu_init,
}, {
.rev = ADRENO_REV(4, 3, 0, ANY_ID),
.revn = 430,
.name = "A430",
.pm4fw = "a420_pm4.fw",
.pfpfw = "a420_pfp.fw",
.gmem = (SZ_1M + SZ_512K),
.init = a4xx_gpu_init,
}, {
.rev = ADRENO_REV(5, 3, 0, 2),
.revn = 530,
.name = "A530",
.pm4fw = "a530_pm4.fw",
.pfpfw = "a530_pfp.fw",
.gmem = SZ_1M,
.quirks = ADRENO_QUIRK_TWO_PASS_USE_WFI |
ADRENO_QUIRK_FAULT_DETECT_MASK,
.init = a5xx_gpu_init,
.gpmufw = "a530v3_gpmu.fw2",
.zapfw = "a530_zap.mdt",
},
};
MODULE_FIRMWARE("a300_pm4.fw");
MODULE_FIRMWARE("a300_pfp.fw");
MODULE_FIRMWARE("a330_pm4.fw");
MODULE_FIRMWARE("a330_pfp.fw");
MODULE_FIRMWARE("a420_pm4.fw");
MODULE_FIRMWARE("a420_pfp.fw");
MODULE_FIRMWARE("a530_fm4.fw");
MODULE_FIRMWARE("a530_pfp.fw");
static inline bool _rev_match(uint8_t entry, uint8_t id)
{
return (entry == ANY_ID) || (entry == id);
}
const struct adreno_info *adreno_info(struct adreno_rev rev)
{
int i;
/* identify gpu: */
for (i = 0; i < ARRAY_SIZE(gpulist); i++) {
const struct adreno_info *info = &gpulist[i];
if (_rev_match(info->rev.core, rev.core) &&
_rev_match(info->rev.major, rev.major) &&
_rev_match(info->rev.minor, rev.minor) &&
_rev_match(info->rev.patchid, rev.patchid))
return info;
}
return NULL;
}
struct msm_gpu *adreno_load_gpu(struct drm_device *dev)
{
struct msm_drm_private *priv = dev->dev_private;
struct platform_device *pdev = priv->gpu_pdev;
struct adreno_platform_config *config;
struct adreno_rev rev;
const struct adreno_info *info;
struct msm_gpu *gpu = NULL;
if (!pdev) {
dev_err(dev->dev, "no adreno device\n");
return NULL;
}
config = pdev->dev.platform_data;
rev = config->rev;
info = adreno_info(config->rev);
if (!info) {
dev_warn(dev->dev, "Unknown GPU revision: %u.%u.%u.%u\n",
rev.core, rev.major, rev.minor, rev.patchid);
return NULL;
}
DBG("Found GPU: %u.%u.%u.%u", rev.core, rev.major,
rev.minor, rev.patchid);
gpu = info->init(dev);
if (IS_ERR(gpu)) {
dev_warn(dev->dev, "failed to load adreno gpu\n");
gpu = NULL;
/* not fatal */
}
if (gpu) {
int ret;
pm_runtime_get_sync(&pdev->dev);
mutex_lock(&dev->struct_mutex);
ret = msm_gpu_hw_init(gpu);
mutex_unlock(&dev->struct_mutex);
pm_runtime_put_sync(&pdev->dev);
if (ret) {
dev_err(dev->dev, "gpu hw init failed: %d\n", ret);
gpu->funcs->destroy(gpu);
gpu = NULL;
}
}
return gpu;
}
static void set_gpu_pdev(struct drm_device *dev,
struct platform_device *pdev)
{
struct msm_drm_private *priv = dev->dev_private;
priv->gpu_pdev = pdev;
}
static int find_chipid(struct device *dev, u32 *chipid)
{
struct device_node *node = dev->of_node;
const char *compat;
int ret;
/* first search the compat strings for qcom,adreno-XYZ.W: */
ret = of_property_read_string_index(node, "compatible", 0, &compat);
if (ret == 0) {
unsigned rev, patch;
if (sscanf(compat, "qcom,adreno-%u.%u", &rev, &patch) == 2) {
*chipid = 0;
*chipid |= (rev / 100) << 24; /* core */
rev %= 100;
*chipid |= (rev / 10) << 16; /* major */
rev %= 10;
*chipid |= rev << 8; /* minor */
*chipid |= patch;
return 0;
}
}
/* and if that fails, fall back to legacy "qcom,chipid" property: */
ret = of_property_read_u32(node, "qcom,chipid", chipid);
if (ret)
return ret;
dev_warn(dev, "Using legacy qcom,chipid binding!\n");
dev_warn(dev, "Use compatible qcom,adreno-%u%u%u.%u instead.\n",
(*chipid >> 24) & 0xff, (*chipid >> 16) & 0xff,
(*chipid >> 8) & 0xff, *chipid & 0xff);
return 0;
}
/* Get legacy powerlevels from qcom,gpu-pwrlevels and populate the opp table */
static int adreno_get_legacy_pwrlevels(struct device *dev)
{
struct device_node *child, *node;
int ret;
node = of_find_compatible_node(dev->of_node, NULL,
"qcom,gpu-pwrlevels");
if (!node) {
dev_err(dev, "Could not find the GPU powerlevels\n");
return -ENXIO;
}
for_each_child_of_node(node, child) {
unsigned int val;
ret = of_property_read_u32(child, "qcom,gpu-freq", &val);
if (ret)
continue;
/*
* Skip the intentionally bogus clock value found at the bottom
* of most legacy frequency tables
*/
if (val != 27000000)
dev_pm_opp_add(dev, val, 0);
}
return 0;
}
static int adreno_get_pwrlevels(struct device *dev,
struct adreno_platform_config *config)
{
unsigned long freq = ULONG_MAX;
struct dev_pm_opp *opp;
int ret;
/* You down with OPP? */
if (!of_find_property(dev->of_node, "operating-points-v2", NULL))
ret = adreno_get_legacy_pwrlevels(dev);
else
ret = dev_pm_opp_of_add_table(dev);
if (ret)
return ret;
/* Find the fastest defined rate */
opp = dev_pm_opp_find_freq_floor(dev, &freq);
if (!IS_ERR(opp))
config->fast_rate = dev_pm_opp_get_freq(opp);
if (!config->fast_rate) {
DRM_DEV_INFO(dev,
"Could not find clock rate. Using default\n");
/* Pick a suitably safe clock speed for any target */
config->fast_rate = 200000000;
}
return 0;
}
static int adreno_bind(struct device *dev, struct device *master, void *data)
{
static struct adreno_platform_config config = {};
u32 val;
int ret;
ret = find_chipid(dev, &val);
if (ret) {
dev_err(dev, "could not find chipid: %d\n", ret);
return ret;
}
config.rev = ADRENO_REV((val >> 24) & 0xff,
(val >> 16) & 0xff, (val >> 8) & 0xff, val & 0xff);
/* find clock rates: */
config.fast_rate = 0;
ret = adreno_get_pwrlevels(dev, &config);
if (ret)
return ret;
dev->platform_data = &config;
set_gpu_pdev(dev_get_drvdata(master), to_platform_device(dev));
return 0;
}
static void adreno_unbind(struct device *dev, struct device *master,
void *data)
{
set_gpu_pdev(dev_get_drvdata(master), NULL);
}
static const struct component_ops a3xx_ops = {
.bind = adreno_bind,
.unbind = adreno_unbind,
};
static int adreno_probe(struct platform_device *pdev)
{
return component_add(&pdev->dev, &a3xx_ops);
}
static int adreno_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &a3xx_ops);
return 0;
}
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,adreno" },
{ .compatible = "qcom,adreno-3xx" },
/* for backwards compat w/ downstream kgsl DT files: */
{ .compatible = "qcom,kgsl-3d0" },
{}
};
#ifdef CONFIG_PM
static int adreno_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct msm_gpu *gpu = platform_get_drvdata(pdev);
return gpu->funcs->pm_resume(gpu);
}
static int adreno_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct msm_gpu *gpu = platform_get_drvdata(pdev);
return gpu->funcs->pm_suspend(gpu);
}
#endif
static const struct dev_pm_ops adreno_pm_ops = {
SET_RUNTIME_PM_OPS(adreno_suspend, adreno_resume, NULL)
};
static struct platform_driver adreno_driver = {
.probe = adreno_probe,
.remove = adreno_remove,
.driver = {
.name = "adreno",
.of_match_table = dt_match,
.pm = &adreno_pm_ops,
},
};
void __init adreno_register(void)
{
platform_driver_register(&adreno_driver);
}
void __exit adreno_unregister(void)
{
platform_driver_unregister(&adreno_driver);
}