| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20211005231323.2663520-6-bjorn.andersson@linaro.org>
Date: Tue, 5 Oct 2021 16:13:21 -0700
From: Bjorn Andersson <bjorn.andersson@...aro.org>
To: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Abhinav Kumar <abhinavk@...eaurora.org>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Kalyan Thota <kalyan_t@...eaurora.org>,
Kuogee Hsieh <khsieh@...eaurora.org>
Cc: Rob Herring <robh+dt@...nel.org>,
Stephen Boyd <swboyd@...omium.org>,
linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 5/7] drm/msm/dp: Support up to 3 DP controllers
Based on the removal of the g_dp_display and the movement of the
priv->dp lookup into the DP code it's now possible to have multiple
DP instances.
In line with the other controllers in the MSM driver, introduce a
per-compatible list of base addresses which is used to resolve the
"instance id" for the given DP controller. This instance id is used as
index in the priv->dp[] array.
Then extend the initialization code to initialize struct drm_encoder for
each of the registered priv->dp[] and update the logic for associating
each struct msm_dp with the struct dpu_encoder_virt.
Lastly, bump the number of struct msm_dp instances carries by priv->dp
to 3, the currently known maximum number of controllers found in a
Qualcomm SoC.
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
Changes since v3:
- Rebased ontop of previous patches
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +-
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 66 +++++++++++--------
.../gpu/drm/msm/disp/msm_disp_snapshot_util.c | 8 ++-
drivers/gpu/drm/msm/dp/dp_display.c | 18 +++--
drivers/gpu/drm/msm/msm_drv.h | 2 +-
5 files changed, 59 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index b7f33da2799c..9cd9539a1504 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2173,7 +2173,7 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
dpu_encoder_vsync_event_handler,
0);
else if (disp_info->intf_type == DRM_MODE_ENCODER_TMDS)
- dpu_enc->dp = priv->dp;
+ dpu_enc->dp = priv->dp[disp_info->h_tile_instance[0]];
INIT_DELAYED_WORK(&dpu_enc->delayed_off_work,
dpu_encoder_off_work);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index f655adbc2421..875b07e7183d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -188,6 +188,7 @@ static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
struct dentry *entry;
struct drm_device *dev;
struct msm_drm_private *priv;
+ int i;
if (!p)
return -EINVAL;
@@ -203,8 +204,10 @@ static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
dpu_debugfs_vbif_init(dpu_kms, entry);
dpu_debugfs_core_irq_init(dpu_kms, entry);
- if (priv->dp)
- msm_dp_debugfs_init(priv->dp, minor);
+ for (i = 0; i < ARRAY_SIZE(priv->dp); i++) {
+ if (priv->dp[i])
+ msm_dp_debugfs_init(priv->dp[i], minor);
+ }
return dpu_core_perf_debugfs_init(dpu_kms, entry);
}
@@ -544,35 +547,42 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev,
{
struct drm_encoder *encoder = NULL;
struct msm_display_info info;
- int rc = 0;
+ int rc;
+ int i;
- if (!priv->dp)
- return rc;
+ for (i = 0; i < ARRAY_SIZE(priv->dp); i++) {
+ if (!priv->dp[i])
+ continue;
- encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS);
- if (IS_ERR(encoder)) {
- DPU_ERROR("encoder init failed for dsi display\n");
- return PTR_ERR(encoder);
- }
+ encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_TMDS);
+ if (IS_ERR(encoder)) {
+ DPU_ERROR("encoder init failed for dsi display\n");
+ return PTR_ERR(encoder);
+ }
- memset(&info, 0, sizeof(info));
- rc = msm_dp_modeset_init(priv->dp, dev, encoder);
- if (rc) {
- DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
- drm_encoder_cleanup(encoder);
- return rc;
- }
+ memset(&info, 0, sizeof(info));
+ rc = msm_dp_modeset_init(priv->dp[i], dev, encoder);
+ if (rc) {
+ DPU_ERROR("modeset_init failed for DP, rc = %d\n", rc);
+ drm_encoder_cleanup(encoder);
+ return rc;
+ }
- priv->encoders[priv->num_encoders++] = encoder;
+ priv->encoders[priv->num_encoders++] = encoder;
- info.num_of_h_tiles = 1;
- info.capabilities = MSM_DISPLAY_CAP_VID_MODE;
- info.intf_type = encoder->encoder_type;
- rc = dpu_encoder_setup(dev, encoder, &info);
- if (rc)
- DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
- encoder->base.id, rc);
- return rc;
+ info.num_of_h_tiles = 1;
+ info.h_tile_instance[0] = i;
+ info.capabilities = MSM_DISPLAY_CAP_VID_MODE;
+ info.intf_type = encoder->encoder_type;
+ rc = dpu_encoder_setup(dev, encoder, &info);
+ if (rc) {
+ DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n",
+ encoder->base.id, rc);
+ return rc;
+ }
+ }
+
+ return 0;
}
/**
@@ -792,6 +802,7 @@ static int dpu_irq_postinstall(struct msm_kms *kms)
{
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+ int i;
if (!dpu_kms || !dpu_kms->dev)
return -EINVAL;
@@ -800,7 +811,8 @@ static int dpu_irq_postinstall(struct msm_kms *kms)
if (!priv)
return -EINVAL;
- msm_dp_irq_postinstall(priv->dp);
+ for (i = 0; i < ARRAY_SIZE(priv->dp); i++)
+ msm_dp_irq_postinstall(priv->dp[i]);
return 0;
}
diff --git a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
index cabe15190ec1..2e1acb1bc390 100644
--- a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
+++ b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
@@ -126,8 +126,12 @@ void msm_disp_snapshot_capture_state(struct msm_disp_state *disp_state)
priv = drm_dev->dev_private;
kms = priv->kms;
- if (priv->dp)
- msm_dp_snapshot(disp_state, priv->dp);
+ for (i = 0; i < ARRAY_SIZE(priv->dp); i++) {
+ if (!priv->dp[i])
+ continue;
+
+ msm_dp_snapshot(disp_state, priv->dp[i]);
+ }
for (i = 0; i < ARRAY_SIZE(priv->dsi); i++) {
if (!priv->dsi[i])
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index bdaf227f05dc..674cddfee5b0 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -79,6 +79,8 @@ struct dp_display_private {
char *name;
int irq;
+ unsigned int id;
+
/* state variables */
bool core_initialized;
bool hpd_irq_on;
@@ -229,7 +231,7 @@ static int dp_display_bind(struct device *dev, struct device *master,
dp->dp_display.drm_dev = drm;
priv = drm->dev_private;
- priv->dp = &(dp->dp_display);
+ priv->dp[dp->id] = &(dp->dp_display);
rc = dp->parser->parse(dp->parser, dp->dp_display.connector_type);
if (rc) {
@@ -269,7 +271,7 @@ static void dp_display_unbind(struct device *dev, struct device *master,
dp_power_client_deinit(dp->power);
dp_aux_unregister(dp->aux);
- priv->dp = NULL;
+ priv->dp[dp->id] = NULL;
}
static const struct component_ops dp_display_comp_ops = {
@@ -1200,7 +1202,8 @@ int dp_display_request_irq(struct msm_dp *dp_display)
return 0;
}
-static struct msm_dp_desc *dp_display_get_desc(struct platform_device *pdev)
+static struct msm_dp_desc *dp_display_get_desc(struct platform_device *pdev,
+ unsigned int *id)
{
const struct msm_dp_config *cfg = of_device_get_match_data(&pdev->dev);
struct resource *res;
@@ -1210,9 +1213,12 @@ static struct msm_dp_desc *dp_display_get_desc(struct platform_device *pdev)
if (!res)
return NULL;
- for (i = 0; i < cfg->num_descs; i++)
- if (cfg->descs[i].io_start == res->start)
+ for (i = 0; i < cfg->num_descs; i++) {
+ if (cfg->descs[i].io_start == res->start) {
+ *id = i;
return &cfg->descs[i];
+ }
+ }
dev_err(&pdev->dev, "unknown displayport instance\n");
return NULL;
@@ -1233,7 +1239,7 @@ static int dp_display_probe(struct platform_device *pdev)
if (!dp)
return -ENOMEM;
- desc = dp_display_get_desc(pdev);
+ desc = dp_display_get_desc(pdev, &dp->id);
if (!desc)
return -EINVAL;
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 8b005d1ac899..2e84dc30e12e 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -161,7 +161,7 @@ struct msm_drm_private {
/* DSI is shared by mdp4 and mdp5 */
struct msm_dsi *dsi[2];
- struct msm_dp *dp;
+ struct msm_dp *dp[3];
/* when we have more than one 'msm_gpu' these need to be an array: */
struct msm_gpu *gpu;
--
2.29.2
Powered by blists - more mailing lists