[Intel-gfx] [PATCH v2 12/17] drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()

Fernando Ramos
2021-09-24T06:52:27Z

As requested in Documentation/gpu/todo.rst, replace driver calls to
drm_modeset_lock_all() with DRM_MODESET_LOCK_ALL_BEGIN() and
DRM_MODESET_LOCK_ALL_END()

Signed-off-by: Fernando Ramos <greenfoo@u92.eu>
---
drivers/gpu/drm/i915/display/intel_audio.c | 16 ++++---
drivers/gpu/drm/i915/display/intel_display.c | 5 +-
.../drm/i915/display/intel_display_debugfs.c | 46 ++++++++++++-------
drivers/gpu/drm/i915/display/intel_overlay.c | 6 ++-
drivers/gpu/drm/i915/display/intel_pipe_crc.c | 7 ++-
drivers/gpu/drm/i915/i915_drv.c | 13 ++++--
6 files changed, 61 insertions(+), 32 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index 532237588511..c64f738cc062 100644
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -26,6 +26,7 @@

#include <drm/drm_edid.h>
#include <drm/i915_component.h>
+#include <drm/drm_drv.h>

#include "i915_drv.h"
#include "intel_atomic.h"
@@ -1214,7 +1215,8 @@ static int i915_audio_component_bind(struct device *i915_kdev,
{
struct i915_audio_component *acomp = data;
struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev);
- int i;
+ struct drm_modeset_acquire_ctx ctx;
+ int i, ret;

if (drm_WARN_ON(&dev_priv->drm, acomp->base.ops || acomp->base.dev))
return -EEXIST;
@@ -1224,16 +1226,16 @@ static int i915_audio_component_bind(struct device *i915_kdev,
DL_FLAG_STATELESS)))
return -ENOMEM;

- drm_modeset_lock_all(&dev_priv->drm);
+ DRM_MODESET_LOCK_ALL_BEGIN((&dev_priv->drm), ctx, 0, ret);
acomp->base.ops = &i915_audio_component_ops;
acomp->base.dev = i915_kdev;
BUILD_BUG_ON(MAX_PORTS != I915_MAX_PORTS);
for (i = 0; i < ARRAY_SIZE(acomp->aud_sample_rate); i++)
acomp->aud_sample_rate[i] = 0;
dev_priv->audio_component = acomp;
- drm_modeset_unlock_all(&dev_priv->drm);
+ DRM_MODESET_LOCK_ALL_END((&dev_priv->drm), ctx, ret);

- return 0;
+ return ret;
}

static void i915_audio_component_unbind(struct device *i915_kdev,
@@ -1241,12 +1243,14 @@ static void i915_audio_component_unbind(struct device *i915_kdev,
{
struct i915_audio_component *acomp = data;
struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev);
+ struct drm_modeset_acquire_ctx ctx;
+ int ret;

- drm_modeset_lock_all(&dev_priv->drm);
+ DRM_MODESET_LOCK_ALL_BEGIN((&dev_priv->drm), ctx, 0, ret);
acomp->base.ops = NULL;
acomp->base.dev = NULL;
dev_priv->audio_component = NULL;
- drm_modeset_unlock_all(&dev_priv->drm);
+ DRM_MODESET_LOCK_ALL_END((&dev_priv->drm), ctx, ret);

device_link_remove(hda_kdev, i915_kdev);

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2bf01416d656..297359411c5f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12512,6 +12512,7 @@ int intel_modeset_init_noirq(struct drm_i915_private *i915)
int intel_modeset_init_nogem(struct drm_i915_private *i915)
{
struct drm_device *dev = &i915->drm;
+ struct drm_modeset_acquire_ctx ctx;
enum pipe pipe;
struct intel_crtc *crtc;
int ret;
@@ -12563,9 +12564,9 @@ int intel_modeset_init_nogem(struct drm_i915_private *i915)
intel_vga_disable(i915);
intel_setup_outputs(i915);

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
intel_modeset_setup_hw_state(dev, dev->mode_config.acquire_ctx);
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

for_each_intel_crtc(dev, crtc) {
struct intel_initial_plane_config plane_config = {};
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 8fdacb252bb1..e0a6837996e7 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -5,6 +5,7 @@

#include <drm/drm_debugfs.h>
#include <drm/drm_fourcc.h>
+#include <drm/drm_drv.h>

#include "i915_debugfs.h"
#include "intel_display_debugfs.h"
@@ -1057,11 +1058,13 @@ static int i915_display_info(struct seq_file *m, void *unused)
struct intel_crtc *crtc;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
+ struct drm_modeset_acquire_ctx ctx;
intel_wakeref_t wakeref;
+ int ret;

wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

seq_printf(m, "CRTC info\n");
seq_printf(m, "---------\n");
@@ -1076,20 +1079,21 @@ static int i915_display_info(struct seq_file *m, void *unused)
intel_connector_info(m, connector);
drm_connector_list_iter_end(&conn_iter);

- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);

- return 0;
+ return ret;
}

static int i915_shared_dplls_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
- int i;
+ struct drm_modeset_acquire_ctx ctx;
+ int i, ret;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

seq_printf(m, "PLL refclks: non-SSC: %d kHz, SSC: %d kHz\n",
dev_priv->dpll.ref_clks.nssc,
@@ -1132,9 +1136,9 @@ static int i915_shared_dplls_info(struct seq_file *m, void *unused)
seq_printf(m, " mg_pll_tdc_coldst_bias: 0x%08x\n",
pll->state.hw_state.mg_pll_tdc_coldst_bias);
}
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

- return 0;
+ return ret;
}

static int i915_ipc_status_show(struct seq_file *m, void *data)
@@ -1193,13 +1197,15 @@ static int i915_ddb_info(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
struct skl_ddb_entry *entry;
struct intel_crtc *crtc;
+ int ret;

if (DISPLAY_VER(dev_priv) < 9)
return -ENODEV;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

seq_printf(m, "%-15s%8s%8s%8s\n", "", "Start", "End", "Size");

@@ -1223,9 +1229,9 @@ static int i915_ddb_info(struct seq_file *m, void *unused)
entry->end, skl_ddb_entry_size(entry));
}

- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

- return 0;
+ return ret;
}

static void drrs_status_per_crtc(struct seq_file *m,
@@ -1303,10 +1309,12 @@ static int i915_drrs_status(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
struct intel_crtc *crtc;
int active_crtc_cnt = 0;
+ int ret;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
for_each_intel_crtc(dev, crtc) {
if (crtc->base.state->active) {
active_crtc_cnt++;
@@ -1315,7 +1323,7 @@ static int i915_drrs_status(struct seq_file *m, void *unused)
drrs_status_per_crtc(m, dev, crtc);
}
}
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

if (!active_crtc_cnt)
seq_puts(m, "No active crtc found\n");
@@ -1607,8 +1615,10 @@ static void wm_latency_show(struct seq_file *m, const u16 wm[8])
{
struct drm_i915_private *dev_priv = m->private;
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
int level;
int num_levels;
+ int ret;

if (IS_CHERRYVIEW(dev_priv))
num_levels = 3;
@@ -1619,7 +1629,7 @@ static void wm_latency_show(struct seq_file *m, const u16 wm[8])
else
num_levels = ilk_wm_max_level(dev_priv) + 1;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

for (level = 0; level < num_levels; level++) {
unsigned int latency = wm[level];
@@ -1640,7 +1650,7 @@ static void wm_latency_show(struct seq_file *m, const u16 wm[8])
level, wm[level], latency / 10, latency % 10);
}

- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
}

static int pri_wm_latency_show(struct seq_file *m, void *data)
@@ -1724,6 +1734,7 @@ static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
struct seq_file *m = file->private_data;
struct drm_i915_private *dev_priv = m->private;
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
u16 new[8] = { 0 };
int num_levels;
int level;
@@ -1753,12 +1764,15 @@ static ssize_t wm_latency_write(struct file *file, const char __user *ubuf,
if (ret != num_levels)
return -EINVAL;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

for (level = 0; level < num_levels; level++)
wm[level] = new[level];

- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+ if (ret)
+ return ret;

return len;
}
diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c
index 7e3f5c6ca484..c0ee135e5499 100644
--- a/drivers/gpu/drm/i915/display/intel_overlay.c
+++ b/drivers/gpu/drm/i915/display/intel_overlay.c
@@ -27,6 +27,7 @@
*/

#include <drm/drm_fourcc.h>
+#include <drm/drm_drv.h>

#include "gem/i915_gem_pm.h"
#include "gt/intel_gpu_commands.h"
@@ -1263,6 +1264,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
{
struct drm_intel_overlay_attrs *attrs = data;
struct drm_i915_private *dev_priv = to_i915(dev);
+ struct drm_modeset_acquire_ctx ctx;
struct intel_overlay *overlay;
int ret;

@@ -1272,7 +1274,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
return -ENODEV;
}

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);

ret = -EINVAL;
if (!(attrs->flags & I915_OVERLAY_UPDATE_ATTRS)) {
@@ -1329,7 +1331,7 @@ int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,

ret = 0;
out_unlock:
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

return ret;
}
diff --git a/drivers/gpu/drm/i915/display/intel_pipe_crc.c b/drivers/gpu/drm/i915/display/intel_pipe_crc.c
index 8ac263f471be..d0bc74904b93 100644
--- a/drivers/gpu/drm/i915/display/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/display/intel_pipe_crc.c
@@ -29,6 +29,8 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>

+#include <drm/drm_drv.h>
+
#include "intel_atomic.h"
#include "intel_de.h"
#include "intel_display_types.h"
@@ -76,6 +78,7 @@ static int i9xx_pipe_crc_auto_source(struct drm_i915_private *dev_priv,
enum intel_pipe_crc_source *source)
{
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
struct intel_encoder *encoder;
struct intel_crtc *crtc;
struct intel_digital_port *dig_port;
@@ -83,7 +86,7 @@ static int i9xx_pipe_crc_auto_source(struct drm_i915_private *dev_priv,

*source = INTEL_PIPE_CRC_SOURCE_PIPE;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
for_each_intel_encoder(dev, encoder) {
if (!encoder->base.crtc)
continue;
@@ -120,7 +123,7 @@ static int i9xx_pipe_crc_auto_source(struct drm_i915_private *dev_priv,
break;
}
}
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);

return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 59fb4c710c8c..e7b763ca6d10 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -44,6 +44,7 @@
#include <drm/drm_ioctl.h>
#include <drm/drm_managed.h>
#include <drm/drm_probe_helper.h>
+#include <drm/drm_drv.h>

#include "display/intel_acpi.h"
#include "display/intel_bw.h"
@@ -1009,31 +1010,35 @@ static void i915_driver_postclose(struct drm_device *dev, struct drm_file *file)
static void intel_suspend_encoders(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
struct intel_encoder *encoder;
+ int ret;

if (!HAS_DISPLAY(dev_priv))
return;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
for_each_intel_encoder(dev, encoder)
if (encoder->suspend)
encoder->suspend(encoder);
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
}

static void intel_shutdown_encoders(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = &dev_priv->drm;
+ struct drm_modeset_acquire_ctx ctx;
struct intel_encoder *encoder;
+ int ret;

if (!HAS_DISPLAY(dev_priv))
return;

- drm_modeset_lock_all(dev);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
for_each_intel_encoder(dev, encoder)
if (encoder->shutdown)
encoder->shutdown(encoder);
- drm_modeset_unlock_all(dev);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
}

void i915_driver_shutdown(struct drm_i915_private *i915)
--
2.33.0