From 08f87f769b595151be1afeff53e144f543faa614 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 06 Dec 2023 09:51:13 +0000
Subject: [PATCH] add dts config
---
kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 291 ++++++++++++++++++++++++----------------------------------
1 files changed, 121 insertions(+), 170 deletions(-)
diff --git a/kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 25691b7..9baaaef 100644
--- a/kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/kernel/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -1,31 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014, The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
- *
- * 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/delay.h>
+#include <linux/interconnect.h>
#include <linux/of_irq.h>
+
+#include <drm/drm_debugfs.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_file.h>
+#include <drm/drm_vblank.h>
#include "msm_drv.h"
#include "msm_gem.h"
#include "msm_mmu.h"
#include "mdp5_kms.h"
-
-static const char *iommu_ports[] = {
- "mdp_0",
-};
static int mdp5_hw_init(struct msm_kms *kms)
{
@@ -144,46 +136,58 @@
state->mdp5_kms = mdp5_kms;
- drm_atomic_private_obj_init(&mdp5_kms->glob_state,
+ drm_atomic_private_obj_init(mdp5_kms->dev, &mdp5_kms->glob_state,
&state->base,
&mdp5_global_state_funcs);
return 0;
}
+static void mdp5_enable_commit(struct msm_kms *kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ pm_runtime_get_sync(&mdp5_kms->pdev->dev);
+}
+
+static void mdp5_disable_commit(struct msm_kms *kms)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ pm_runtime_put_sync(&mdp5_kms->pdev->dev);
+}
+
static void mdp5_prepare_commit(struct msm_kms *kms, struct drm_atomic_state *state)
{
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
- struct device *dev = &mdp5_kms->pdev->dev;
struct mdp5_global_state *global_state;
global_state = mdp5_get_existing_global_state(mdp5_kms);
-
- pm_runtime_get_sync(dev);
if (mdp5_kms->smp)
mdp5_smp_prepare_commit(mdp5_kms->smp, &global_state->smp);
}
-static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state *state)
+static void mdp5_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
+{
+ /* TODO */
+}
+
+static void mdp5_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
{
struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
- struct device *dev = &mdp5_kms->pdev->dev;
- struct mdp5_global_state *global_state;
+ struct drm_crtc *crtc;
- drm_atomic_helper_wait_for_vblanks(mdp5_kms->dev, state);
+ for_each_crtc_mask(mdp5_kms->dev, crtc, crtc_mask)
+ mdp5_crtc_wait_for_commit_done(crtc);
+}
+
+static void mdp5_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
+{
+ struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms));
+ struct mdp5_global_state *global_state;
global_state = mdp5_get_existing_global_state(mdp5_kms);
if (mdp5_kms->smp)
mdp5_smp_complete_commit(mdp5_kms->smp, &global_state->smp);
-
- pm_runtime_put_sync(dev);
-}
-
-static void mdp5_wait_for_crtc_commit_done(struct msm_kms *kms,
- struct drm_crtc *crtc)
-{
- mdp5_crtc_wait_for_commit_done(crtc);
}
static long mdp5_round_pixclk(struct msm_kms *kms, unsigned long rate,
@@ -225,8 +229,7 @@
mdp5_pipe_destroy(mdp5_kms->hwpipes[i]);
if (aspace) {
- aspace->mmu->funcs->detach(aspace->mmu,
- iommu_ports, ARRAY_SIZE(iommu_ports));
+ aspace->mmu->funcs->detach(aspace->mmu);
msm_gem_address_space_put(aspace);
}
}
@@ -256,17 +259,9 @@
static int mdp5_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
{
- struct drm_device *dev = minor->dev;
- int ret;
-
- ret = drm_debugfs_create_files(mdp5_debugfs_list,
- ARRAY_SIZE(mdp5_debugfs_list),
- minor->debugfs_root, minor);
-
- if (ret) {
- dev_err(dev->dev, "could not install mdp5_debugfs_list\n");
- return ret;
- }
+ drm_debugfs_create_files(mdp5_debugfs_list,
+ ARRAY_SIZE(mdp5_debugfs_list),
+ minor->debugfs_root, minor);
return 0;
}
@@ -281,9 +276,12 @@
.irq = mdp5_irq,
.enable_vblank = mdp5_enable_vblank,
.disable_vblank = mdp5_disable_vblank,
+ .flush_commit = mdp5_flush_commit,
+ .enable_commit = mdp5_enable_commit,
+ .disable_commit = mdp5_disable_commit,
.prepare_commit = mdp5_prepare_commit,
+ .wait_flush = mdp5_wait_flush,
.complete_commit = mdp5_complete_commit,
- .wait_for_crtc_commit_done = mdp5_wait_for_crtc_commit_done,
.get_format = mdp_get_format,
.round_pixclk = mdp5_round_pixclk,
.set_split_display = mdp5_set_split_display,
@@ -303,6 +301,10 @@
mdp5_kms->enable_count--;
WARN_ON(mdp5_kms->enable_count < 0);
+ if (mdp5_kms->tbu_rt_clk)
+ clk_disable_unprepare(mdp5_kms->tbu_rt_clk);
+ if (mdp5_kms->tbu_clk)
+ clk_disable_unprepare(mdp5_kms->tbu_clk);
clk_disable_unprepare(mdp5_kms->ahb_clk);
clk_disable_unprepare(mdp5_kms->axi_clk);
clk_disable_unprepare(mdp5_kms->core_clk);
@@ -323,6 +325,10 @@
clk_prepare_enable(mdp5_kms->core_clk);
if (mdp5_kms->lut_clk)
clk_prepare_enable(mdp5_kms->lut_clk);
+ if (mdp5_kms->tbu_clk)
+ clk_prepare_enable(mdp5_kms->tbu_clk);
+ if (mdp5_kms->tbu_rt_clk)
+ clk_prepare_enable(mdp5_kms->tbu_rt_clk);
return 0;
}
@@ -337,7 +343,7 @@
encoder = mdp5_encoder_init(dev, intf, ctl);
if (IS_ERR(encoder)) {
- dev_err(dev->dev, "failed to construct encoder\n");
+ DRM_DEV_ERROR(dev->dev, "failed to construct encoder\n");
return encoder;
}
@@ -418,7 +424,7 @@
int dsi_id = get_dsi_id_from_intf(hw_cfg, intf->num);
if ((dsi_id >= ARRAY_SIZE(priv->dsi)) || (dsi_id < 0)) {
- dev_err(dev->dev, "failed to find dsi from intf %d\n",
+ DRM_DEV_ERROR(dev->dev, "failed to find dsi from intf %d\n",
intf->num);
ret = -EINVAL;
break;
@@ -443,7 +449,7 @@
break;
}
default:
- dev_err(dev->dev, "unknown intf: %d\n", intf->type);
+ DRM_DEV_ERROR(dev->dev, "unknown intf: %d\n", intf->type);
ret = -EINVAL;
break;
}
@@ -455,13 +461,10 @@
{
struct drm_device *dev = mdp5_kms->dev;
struct msm_drm_private *priv = dev->dev_private;
- const struct mdp5_cfg_hw *hw_cfg;
unsigned int num_crtcs;
int i, ret, pi = 0, ci = 0;
struct drm_plane *primary[MAX_BASES] = { NULL };
struct drm_plane *cursor[MAX_BASES] = { NULL };
-
- hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
/*
* Construct encoders and modeset initialize connector devices
@@ -500,7 +503,7 @@
plane = mdp5_plane_init(dev, type);
if (IS_ERR(plane)) {
ret = PTR_ERR(plane);
- dev_err(dev->dev, "failed to construct plane %d (%d)\n", i, ret);
+ DRM_DEV_ERROR(dev->dev, "failed to construct plane %d (%d)\n", i, ret);
goto fail;
}
priv->planes[priv->num_planes++] = plane;
@@ -517,7 +520,7 @@
crtc = mdp5_crtc_init(dev, primary[i], cursor[i], i);
if (IS_ERR(crtc)) {
ret = PTR_ERR(crtc);
- dev_err(dev->dev, "failed to construct crtc %d (%d)\n", i, ret);
+ DRM_DEV_ERROR(dev->dev, "failed to construct crtc %d (%d)\n", i, ret);
goto fail;
}
priv->crtcs[priv->num_crtcs++] = crtc;
@@ -552,7 +555,7 @@
*major = FIELD(version, MDP5_HW_VERSION_MAJOR);
*minor = FIELD(version, MDP5_HW_VERSION_MINOR);
- dev_info(dev, "MDP5 version v%d.%d", *major, *minor);
+ DRM_DEV_INFO(dev, "MDP5 version v%d.%d", *major, *minor);
}
static int get_clk(struct platform_device *pdev, struct clk **clkp,
@@ -561,7 +564,7 @@
struct device *dev = &pdev->dev;
struct clk *clk = msm_clk_get(pdev, name);
if (IS_ERR(clk) && mandatory) {
- dev_err(dev, "failed to get %s (%ld)\n", name, PTR_ERR(clk));
+ DRM_DEV_ERROR(dev, "failed to get %s (%ld)\n", name, PTR_ERR(clk));
return PTR_ERR(clk);
}
if (IS_ERR(clk))
@@ -570,98 +573,6 @@
*clkp = clk;
return 0;
-}
-
-static struct drm_encoder *get_encoder_from_crtc(struct drm_crtc *crtc)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_encoder *encoder;
-
- drm_for_each_encoder(encoder, dev)
- if (encoder->crtc == crtc)
- return encoder;
-
- return NULL;
-}
-
-static bool mdp5_get_scanoutpos(struct drm_device *dev, unsigned int pipe,
- bool in_vblank_irq, int *vpos, int *hpos,
- ktime_t *stime, ktime_t *etime,
- const struct drm_display_mode *mode)
-{
- struct msm_drm_private *priv = dev->dev_private;
- struct drm_crtc *crtc;
- struct drm_encoder *encoder;
- int line, vsw, vbp, vactive_start, vactive_end, vfp_end;
-
- crtc = priv->crtcs[pipe];
- if (!crtc) {
- DRM_ERROR("Invalid crtc %d\n", pipe);
- return false;
- }
-
- encoder = get_encoder_from_crtc(crtc);
- if (!encoder) {
- DRM_ERROR("no encoder found for crtc %d\n", pipe);
- return false;
- }
-
- vsw = mode->crtc_vsync_end - mode->crtc_vsync_start;
- vbp = mode->crtc_vtotal - mode->crtc_vsync_end;
-
- /*
- * the line counter is 1 at the start of the VSYNC pulse and VTOTAL at
- * the end of VFP. Translate the porch values relative to the line
- * counter positions.
- */
-
- vactive_start = vsw + vbp + 1;
-
- vactive_end = vactive_start + mode->crtc_vdisplay;
-
- /* last scan line before VSYNC */
- vfp_end = mode->crtc_vtotal;
-
- if (stime)
- *stime = ktime_get();
-
- line = mdp5_encoder_get_linecount(encoder);
-
- if (line < vactive_start) {
- line -= vactive_start;
- } else if (line > vactive_end) {
- line = line - vfp_end - vactive_start;
- } else {
- line -= vactive_start;
- }
-
- *vpos = line;
- *hpos = 0;
-
- if (etime)
- *etime = ktime_get();
-
- return true;
-}
-
-static u32 mdp5_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
-{
- struct msm_drm_private *priv = dev->dev_private;
- struct drm_crtc *crtc;
- struct drm_encoder *encoder;
-
- if (pipe >= priv->num_crtcs)
- return 0;
-
- crtc = priv->crtcs[pipe];
- if (!crtc)
- return 0;
-
- encoder = get_encoder_from_crtc(crtc);
- if (!encoder)
- return 0;
-
- return mdp5_encoder_get_framecount(encoder);
}
struct msm_kms *mdp5_kms_init(struct drm_device *dev)
@@ -673,6 +584,7 @@
struct msm_kms *kms;
struct msm_gem_address_space *aspace;
int irq, i, ret;
+ struct device *iommu_dev;
/* priv->kms would have been populated by the MDP5 driver */
kms = priv->kms;
@@ -686,9 +598,9 @@
pdev = mdp5_kms->pdev;
irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
- if (irq < 0) {
- ret = irq;
- dev_err(&pdev->dev, "failed to get irq: %d\n", ret);
+ if (!irq) {
+ ret = -EINVAL;
+ DRM_DEV_ERROR(&pdev->dev, "failed to get irq\n");
goto fail;
}
@@ -712,24 +624,27 @@
mdelay(16);
if (config->platform.iommu) {
- aspace = msm_gem_address_space_create(&pdev->dev,
- config->platform.iommu, "mdp5");
+ struct msm_mmu *mmu;
+
+ iommu_dev = &pdev->dev;
+ if (!dev_iommu_fwspec_get(iommu_dev))
+ iommu_dev = iommu_dev->parent;
+
+ mmu = msm_iommu_new(iommu_dev, config->platform.iommu);
+
+ aspace = msm_gem_address_space_create(mmu, "mdp5",
+ 0x1000, 0x100000000 - 0x1000);
+
if (IS_ERR(aspace)) {
+ if (!IS_ERR(mmu))
+ mmu->funcs->destroy(mmu);
ret = PTR_ERR(aspace);
goto fail;
}
kms->aspace = aspace;
-
- ret = aspace->mmu->funcs->attach(aspace->mmu, iommu_ports,
- ARRAY_SIZE(iommu_ports));
- if (ret) {
- dev_err(&pdev->dev, "failed to attach iommu: %d\n",
- ret);
- goto fail;
- }
} else {
- dev_info(&pdev->dev,
+ DRM_DEV_INFO(&pdev->dev,
"no iommu, fallback to phys contig buffers for scanout\n");
aspace = NULL;
}
@@ -738,7 +653,7 @@
ret = modeset_init(mdp5_kms);
if (ret) {
- dev_err(&pdev->dev, "modeset_init failed: %d\n", ret);
+ DRM_DEV_ERROR(&pdev->dev, "modeset_init failed: %d\n", ret);
goto fail;
}
@@ -747,10 +662,7 @@
dev->mode_config.max_width = 0xffff;
dev->mode_config.max_height = 0xffff;
- dev->driver->get_vblank_timestamp = drm_calc_vbltimestamp_from_scanoutpos;
- dev->driver->get_scanout_position = mdp5_get_scanoutpos;
- dev->driver->get_vblank_counter = mdp5_get_vblank_counter;
- dev->max_vblank_count = 0xffffffff;
+ dev->max_vblank_count = 0; /* max_vblank_count is set on each CRTC */
dev->vblank_disable_immediate = true;
return kms;
@@ -795,7 +707,7 @@
hwpipe = mdp5_pipe_init(pipes[i], offsets[i], caps);
if (IS_ERR(hwpipe)) {
ret = PTR_ERR(hwpipe);
- dev_err(dev->dev, "failed to construct pipe for %s (%d)\n",
+ DRM_DEV_ERROR(dev->dev, "failed to construct pipe for %s (%d)\n",
pipe2name(pipes[i]), ret);
return ret;
}
@@ -867,7 +779,7 @@
mixer = mdp5_mixer_init(&hw_cfg->lm.instances[i]);
if (IS_ERR(mixer)) {
ret = PTR_ERR(mixer);
- dev_err(dev->dev, "failed to construct LM%d (%d)\n",
+ DRM_DEV_ERROR(dev->dev, "failed to construct LM%d (%d)\n",
i, ret);
return ret;
}
@@ -897,7 +809,7 @@
intf = kzalloc(sizeof(*intf), GFP_KERNEL);
if (!intf) {
- dev_err(dev->dev, "failed to construct INTF%d\n", i);
+ DRM_DEV_ERROR(dev->dev, "failed to construct INTF%d\n", i);
return -ENOMEM;
}
@@ -958,6 +870,8 @@
/* optional clocks: */
get_clk(pdev, &mdp5_kms->lut_clk, "lut", false);
+ get_clk(pdev, &mdp5_kms->tbu_clk, "tbu", false);
+ get_clk(pdev, &mdp5_kms->tbu_rt_clk, "tbu_rt", false);
/* we need to set a default rate before enabling. Set a safe
* rate first, then figure out hw revision, and then set a
@@ -1049,9 +963,46 @@
.unbind = mdp5_unbind,
};
+static int mdp5_setup_interconnect(struct platform_device *pdev)
+{
+ struct icc_path *path0 = of_icc_get(&pdev->dev, "mdp0-mem");
+ struct icc_path *path1 = of_icc_get(&pdev->dev, "mdp1-mem");
+ struct icc_path *path_rot = of_icc_get(&pdev->dev, "rotator-mem");
+
+ if (IS_ERR(path0))
+ return PTR_ERR(path0);
+
+ if (!path0) {
+ /* no interconnect support is not necessarily a fatal
+ * condition, the platform may simply not have an
+ * interconnect driver yet. But warn about it in case
+ * bootloader didn't setup bus clocks high enough for
+ * scanout.
+ */
+ dev_warn(&pdev->dev, "No interconnect support may cause display underflows!\n");
+ return 0;
+ }
+
+ icc_set_bw(path0, 0, MBps_to_icc(6400));
+
+ if (!IS_ERR_OR_NULL(path1))
+ icc_set_bw(path1, 0, MBps_to_icc(6400));
+ if (!IS_ERR_OR_NULL(path_rot))
+ icc_set_bw(path_rot, 0, MBps_to_icc(6400));
+
+ return 0;
+}
+
static int mdp5_dev_probe(struct platform_device *pdev)
{
+ int ret;
+
DBG("");
+
+ ret = mdp5_setup_interconnect(pdev);
+ if (ret)
+ return ret;
+
return component_add(&pdev->dev, &mdp5_ops);
}
--
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