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/mdp4/mdp4_kms.c | 219 +++++++++++++++++++++++++++---------------------------
1 files changed, 110 insertions(+), 109 deletions(-)
diff --git a/kernel/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c b/kernel/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
index 9b2b8fa..b4d0bfc 100644
--- a/kernel/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
+++ b/kernel/drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c
@@ -1,20 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* 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 <drm/drm_vblank.h>
#include "msm_drv.h"
#include "msm_gem.h"
@@ -27,29 +19,11 @@
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
struct drm_device *dev = mdp4_kms->dev;
- uint32_t version, major, minor, dmap_cfg, vg_cfg;
+ u32 dmap_cfg, vg_cfg;
unsigned long clk;
int ret = 0;
pm_runtime_get_sync(dev->dev);
-
- mdp4_enable(mdp4_kms);
- version = mdp4_read(mdp4_kms, REG_MDP4_VERSION);
- mdp4_disable(mdp4_kms);
-
- major = FIELD(version, MDP4_VERSION_MAJOR);
- minor = FIELD(version, MDP4_VERSION_MINOR);
-
- DBG("found MDP4 version v%d.%d", major, minor);
-
- if (major != 4) {
- dev_err(dev->dev, "unexpected MDP version: v%d.%d\n",
- major, minor);
- ret = -ENXIO;
- goto out;
- }
-
- mdp4_kms->rev = minor;
if (mdp4_kms->rev > 1) {
mdp4_write(mdp4_kms, REG_MDP4_CS_CONTROLLER0, 0x0707ffff);
@@ -96,46 +70,43 @@
if (mdp4_kms->rev > 1)
mdp4_write(mdp4_kms, REG_MDP4_RESET_STATUS, 1);
-out:
pm_runtime_put_sync(dev->dev);
return ret;
}
-static void mdp4_prepare_commit(struct msm_kms *kms, struct drm_atomic_state *state)
+static void mdp4_enable_commit(struct msm_kms *kms)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
- int i;
- struct drm_crtc *crtc;
- struct drm_crtc_state *crtc_state;
-
mdp4_enable(mdp4_kms);
-
- /* see 119ecb7fd */
- for_each_new_crtc_in_state(state, crtc, crtc_state, i)
- drm_crtc_vblank_get(crtc);
}
-static void mdp4_complete_commit(struct msm_kms *kms, struct drm_atomic_state *state)
+static void mdp4_disable_commit(struct msm_kms *kms)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
- int i;
- struct drm_crtc *crtc;
- struct drm_crtc_state *crtc_state;
-
- drm_atomic_helper_wait_for_vblanks(mdp4_kms->dev, state);
-
- /* see 119ecb7fd */
- for_each_new_crtc_in_state(state, crtc, crtc_state, i)
- drm_crtc_vblank_put(crtc);
-
mdp4_disable(mdp4_kms);
}
-static void mdp4_wait_for_crtc_commit_done(struct msm_kms *kms,
- struct drm_crtc *crtc)
+static void mdp4_prepare_commit(struct msm_kms *kms, struct drm_atomic_state *state)
{
- mdp4_crtc_wait_for_commit_done(crtc);
+}
+
+static void mdp4_flush_commit(struct msm_kms *kms, unsigned crtc_mask)
+{
+ /* TODO */
+}
+
+static void mdp4_wait_flush(struct msm_kms *kms, unsigned crtc_mask)
+{
+ struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+ struct drm_crtc *crtc;
+
+ for_each_crtc_mask(mdp4_kms->dev, crtc, crtc_mask)
+ mdp4_crtc_wait_for_commit_done(crtc);
+}
+
+static void mdp4_complete_commit(struct msm_kms *kms, unsigned crtc_mask)
+{
}
static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate,
@@ -152,10 +123,6 @@
}
}
-static const char * const iommu_ports[] = {
- "mdp_port0_cb0", "mdp_port1_cb0",
-};
-
static void mdp4_destroy(struct msm_kms *kms)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
@@ -163,12 +130,11 @@
struct msm_gem_address_space *aspace = kms->aspace;
if (mdp4_kms->blank_cursor_iova)
- msm_gem_put_iova(mdp4_kms->blank_cursor_bo, kms->aspace);
- drm_gem_object_put_unlocked(mdp4_kms->blank_cursor_bo);
+ msm_gem_unpin_iova(mdp4_kms->blank_cursor_bo, kms->aspace);
+ drm_gem_object_put(mdp4_kms->blank_cursor_bo);
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);
}
@@ -187,9 +153,12 @@
.irq = mdp4_irq,
.enable_vblank = mdp4_enable_vblank,
.disable_vblank = mdp4_disable_vblank,
+ .enable_commit = mdp4_enable_commit,
+ .disable_commit = mdp4_disable_commit,
.prepare_commit = mdp4_prepare_commit,
+ .flush_commit = mdp4_flush_commit,
+ .wait_flush = mdp4_wait_flush,
.complete_commit = mdp4_complete_commit,
- .wait_for_crtc_commit_done = mdp4_wait_for_crtc_commit_done,
.get_format = mdp_get_format,
.round_pixclk = mdp4_round_pixclk,
.destroy = mdp4_destroy,
@@ -204,7 +173,8 @@
clk_disable_unprepare(mdp4_kms->clk);
if (mdp4_kms->pclk)
clk_disable_unprepare(mdp4_kms->pclk);
- clk_disable_unprepare(mdp4_kms->lut_clk);
+ if (mdp4_kms->lut_clk)
+ clk_disable_unprepare(mdp4_kms->lut_clk);
if (mdp4_kms->axi_clk)
clk_disable_unprepare(mdp4_kms->axi_clk);
@@ -218,7 +188,8 @@
clk_prepare_enable(mdp4_kms->clk);
if (mdp4_kms->pclk)
clk_prepare_enable(mdp4_kms->pclk);
- clk_prepare_enable(mdp4_kms->lut_clk);
+ if (mdp4_kms->lut_clk)
+ clk_prepare_enable(mdp4_kms->lut_clk);
if (mdp4_kms->axi_clk)
clk_prepare_enable(mdp4_kms->axi_clk);
@@ -249,7 +220,8 @@
encoder = mdp4_lcdc_encoder_init(dev, panel_node);
if (IS_ERR(encoder)) {
- dev_err(dev->dev, "failed to construct LCDC encoder\n");
+ DRM_DEV_ERROR(dev->dev, "failed to construct LCDC encoder\n");
+ of_node_put(panel_node);
return PTR_ERR(encoder);
}
@@ -258,7 +230,8 @@
connector = mdp4_lvds_connector_init(dev, panel_node, encoder);
if (IS_ERR(connector)) {
- dev_err(dev->dev, "failed to initialize LVDS connector\n");
+ DRM_DEV_ERROR(dev->dev, "failed to initialize LVDS connector\n");
+ of_node_put(panel_node);
return PTR_ERR(connector);
}
@@ -269,7 +242,7 @@
case DRM_MODE_ENCODER_TMDS:
encoder = mdp4_dtv_encoder_init(dev);
if (IS_ERR(encoder)) {
- dev_err(dev->dev, "failed to construct DTV encoder\n");
+ DRM_DEV_ERROR(dev->dev, "failed to construct DTV encoder\n");
return PTR_ERR(encoder);
}
@@ -280,7 +253,7 @@
/* Construct bridge/connector for HDMI: */
ret = msm_hdmi_modeset_init(priv->hdmi, dev, encoder);
if (ret) {
- dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
+ DRM_DEV_ERROR(dev->dev, "failed to initialize HDMI: %d\n", ret);
return ret;
}
}
@@ -298,7 +271,7 @@
encoder = mdp4_dsi_encoder_init(dev);
if (IS_ERR(encoder)) {
ret = PTR_ERR(encoder);
- dev_err(dev->dev,
+ DRM_DEV_ERROR(dev->dev,
"failed to construct DSI encoder: %d\n", ret);
return ret;
}
@@ -309,14 +282,14 @@
ret = msm_dsi_modeset_init(priv->dsi[dsi_id], dev, encoder);
if (ret) {
- dev_err(dev->dev, "failed to initialize DSI: %d\n",
+ DRM_DEV_ERROR(dev->dev, "failed to initialize DSI: %d\n",
ret);
return ret;
}
break;
default:
- dev_err(dev->dev, "Invalid or unsupported interface\n");
+ DRM_DEV_ERROR(dev->dev, "Invalid or unsupported interface\n");
return -EINVAL;
}
@@ -352,7 +325,7 @@
for (i = 0; i < ARRAY_SIZE(vg_planes); i++) {
plane = mdp4_plane_init(dev, vg_planes[i], false);
if (IS_ERR(plane)) {
- dev_err(dev->dev,
+ DRM_DEV_ERROR(dev->dev,
"failed to construct plane for VG%d\n", i + 1);
ret = PTR_ERR(plane);
goto fail;
@@ -363,7 +336,7 @@
for (i = 0; i < ARRAY_SIZE(mdp4_crtcs); i++) {
plane = mdp4_plane_init(dev, rgb_planes[i], true);
if (IS_ERR(plane)) {
- dev_err(dev->dev,
+ DRM_DEV_ERROR(dev->dev,
"failed to construct plane for RGB%d\n", i + 1);
ret = PTR_ERR(plane);
goto fail;
@@ -372,7 +345,7 @@
crtc = mdp4_crtc_init(dev, plane, priv->num_crtcs, i,
mdp4_crtcs[i]);
if (IS_ERR(crtc)) {
- dev_err(dev->dev, "failed to construct crtc for %s\n",
+ DRM_DEV_ERROR(dev->dev, "failed to construct crtc for %s\n",
mdp4_crtc_names[i]);
ret = PTR_ERR(crtc);
goto fail;
@@ -394,7 +367,7 @@
for (i = 0; i < ARRAY_SIZE(mdp4_intfs); i++) {
ret = mdp4_modeset_init_intf(mdp4_kms, mdp4_intfs[i]);
if (ret) {
- dev_err(dev->dev, "failed to initialize intf: %d, %d\n",
+ DRM_DEV_ERROR(dev->dev, "failed to initialize intf: %d, %d\n",
i, ret);
goto fail;
}
@@ -406,25 +379,44 @@
return ret;
}
+static void read_mdp_hw_revision(struct mdp4_kms *mdp4_kms,
+ u32 *major, u32 *minor)
+{
+ struct drm_device *dev = mdp4_kms->dev;
+ u32 version;
+
+ mdp4_enable(mdp4_kms);
+ version = mdp4_read(mdp4_kms, REG_MDP4_VERSION);
+ mdp4_disable(mdp4_kms);
+
+ *major = FIELD(version, MDP4_VERSION_MAJOR);
+ *minor = FIELD(version, MDP4_VERSION_MINOR);
+
+ DRM_DEV_INFO(dev->dev, "MDP4 version v%d.%d", *major, *minor);
+}
+
struct msm_kms *mdp4_kms_init(struct drm_device *dev)
{
struct platform_device *pdev = to_platform_device(dev->dev);
struct mdp4_platform_config *config = mdp4_get_config(pdev);
+ struct msm_drm_private *priv = dev->dev_private;
struct mdp4_kms *mdp4_kms;
struct msm_kms *kms = NULL;
struct msm_gem_address_space *aspace;
int irq, ret;
+ u32 major, minor;
mdp4_kms = kzalloc(sizeof(*mdp4_kms), GFP_KERNEL);
if (!mdp4_kms) {
- dev_err(dev->dev, "failed to allocate kms\n");
+ DRM_DEV_ERROR(dev->dev, "failed to allocate kms\n");
ret = -ENOMEM;
goto fail;
}
mdp_kms_init(&mdp4_kms->base, &kms_funcs);
- kms = &mdp4_kms->base.base;
+ priv->kms = &mdp4_kms->base.base;
+ kms = priv->kms;
mdp4_kms->dev = dev;
@@ -437,7 +429,7 @@
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = irq;
- dev_err(dev->dev, "failed to get irq: %d\n", ret);
+ DRM_DEV_ERROR(dev->dev, "failed to get irq: %d\n", ret);
goto fail;
}
@@ -454,14 +446,14 @@
if (mdp4_kms->vdd) {
ret = regulator_enable(mdp4_kms->vdd);
if (ret) {
- dev_err(dev->dev, "failed to enable regulator vdd: %d\n", ret);
+ DRM_DEV_ERROR(dev->dev, "failed to enable regulator vdd: %d\n", ret);
goto fail;
}
}
mdp4_kms->clk = devm_clk_get(&pdev->dev, "core_clk");
if (IS_ERR(mdp4_kms->clk)) {
- dev_err(dev->dev, "failed to get core_clk\n");
+ DRM_DEV_ERROR(dev->dev, "failed to get core_clk\n");
ret = PTR_ERR(mdp4_kms->clk);
goto fail;
}
@@ -470,23 +462,35 @@
if (IS_ERR(mdp4_kms->pclk))
mdp4_kms->pclk = NULL;
- // XXX if (rev >= MDP_REV_42) { ???
- mdp4_kms->lut_clk = devm_clk_get(&pdev->dev, "lut_clk");
- if (IS_ERR(mdp4_kms->lut_clk)) {
- dev_err(dev->dev, "failed to get lut_clk\n");
- ret = PTR_ERR(mdp4_kms->lut_clk);
- goto fail;
- }
-
mdp4_kms->axi_clk = devm_clk_get(&pdev->dev, "bus_clk");
if (IS_ERR(mdp4_kms->axi_clk)) {
- dev_err(dev->dev, "failed to get axi_clk\n");
+ DRM_DEV_ERROR(dev->dev, "failed to get axi_clk\n");
ret = PTR_ERR(mdp4_kms->axi_clk);
goto fail;
}
clk_set_rate(mdp4_kms->clk, config->max_clk);
- clk_set_rate(mdp4_kms->lut_clk, config->max_clk);
+
+ read_mdp_hw_revision(mdp4_kms, &major, &minor);
+
+ if (major != 4) {
+ DRM_DEV_ERROR(dev->dev, "unexpected MDP version: v%d.%d\n",
+ major, minor);
+ ret = -ENXIO;
+ goto fail;
+ }
+
+ mdp4_kms->rev = minor;
+
+ if (mdp4_kms->rev >= 2) {
+ mdp4_kms->lut_clk = devm_clk_get(&pdev->dev, "lut_clk");
+ if (IS_ERR(mdp4_kms->lut_clk)) {
+ DRM_DEV_ERROR(dev->dev, "failed to get lut_clk\n");
+ ret = PTR_ERR(mdp4_kms->lut_clk);
+ goto fail;
+ }
+ clk_set_rate(mdp4_kms->lut_clk, config->max_clk);
+ }
pm_runtime_enable(dev->dev);
mdp4_kms->rpm_enabled = true;
@@ -503,43 +507,44 @@
mdelay(16);
if (config->iommu) {
- aspace = msm_gem_address_space_create(&pdev->dev,
- config->iommu, "mdp4");
+ struct msm_mmu *mmu = msm_iommu_new(&pdev->dev,
+ config->iommu);
+
+ aspace = msm_gem_address_space_create(mmu,
+ "mdp4", 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)
- goto fail;
} else {
- dev_info(dev->dev, "no iommu, fallback to phys "
+ DRM_DEV_INFO(dev->dev, "no iommu, fallback to phys "
"contig buffers for scanout\n");
aspace = NULL;
}
ret = modeset_init(mdp4_kms);
if (ret) {
- dev_err(dev->dev, "modeset_init failed: %d\n", ret);
+ DRM_DEV_ERROR(dev->dev, "modeset_init failed: %d\n", ret);
goto fail;
}
- mdp4_kms->blank_cursor_bo = msm_gem_new(dev, SZ_16K, MSM_BO_WC);
+ mdp4_kms->blank_cursor_bo = msm_gem_new(dev, SZ_16K, MSM_BO_WC | MSM_BO_SCANOUT);
if (IS_ERR(mdp4_kms->blank_cursor_bo)) {
ret = PTR_ERR(mdp4_kms->blank_cursor_bo);
- dev_err(dev->dev, "could not allocate blank-cursor bo: %d\n", ret);
+ DRM_DEV_ERROR(dev->dev, "could not allocate blank-cursor bo: %d\n", ret);
mdp4_kms->blank_cursor_bo = NULL;
goto fail;
}
- ret = msm_gem_get_iova(mdp4_kms->blank_cursor_bo, kms->aspace,
+ ret = msm_gem_get_and_pin_iova(mdp4_kms->blank_cursor_bo, kms->aspace,
&mdp4_kms->blank_cursor_iova);
if (ret) {
- dev_err(dev->dev, "could not pin blank-cursor bo: %d\n", ret);
+ DRM_DEV_ERROR(dev->dev, "could not pin blank-cursor bo: %d\n", ret);
goto fail;
}
@@ -563,10 +568,6 @@
/* TODO: Chips that aren't apq8064 have a 200 Mhz max_clk */
config.max_clk = 266667000;
config.iommu = iommu_domain_alloc(&platform_bus_type);
- if (config.iommu) {
- config.iommu->geometry.aperture_start = 0x1000;
- config.iommu->geometry.aperture_end = 0xffffffff;
- }
return &config;
}
--
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