drm/i915: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()

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>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924064324.229457-13-greenfoo@u92.eu

diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index 532237588511822c336c998a7181d794ff787b70..c64f738cc0624dff74d34ae54748ddc53754f729 100644 (file)
--- 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 2bf01416d656fd778565dc35c7e578cd3460bcfc..297359411c5f4e24245db8bdec49dcdb4c10ba56 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12512,6 +12512,7 @@ cleanup_bios:
 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 8fdacb252bb1984a597c94a1af3a5b79b1b153c3..e0a6837996e73535b92f6a4d9fc062af26f32232 100644 (file)
--- 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 7e3f5c6ca4846f38f8a06691aead25bb8154ba77..c0ee135e54997bca6fa1213b3e14811037179e9d 100644 (file)
--- 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 8ac263f471bee15f79ba138bb2fd0db214f2332f..d0bc74904b939799ea7228b864b1dd5f8fb69f0f 100644 (file)
--- 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 59fb4c710c8ca16c873ee5d4fb95de8a5701f37a..e7b763ca6d1066e7f2c051d1b1850cc1382c6796 100644 (file)
--- 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)