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From: Fernando Ramos <greenfoo@u92.eu>
To: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org, sean@poorly.run,
	linux-doc@vger.kernel.org, amd-gfx@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
	freedreno@lists.freedesktop.org, nouveau@lists.freedesktop.org,
	linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org
Subject: [Nouveau] [PATCH 14/15] drm/amd: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL_BEGIN()
Date: Thu, 16 Sep 2021 23:15:51 +0200	[thread overview]
Message-ID: <20210916211552.33490-15-greenfoo@u92.eu> (raw)
In-Reply-To: <20210916211552.33490-1-greenfoo@u92.eu>

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/amd/amdgpu/amdgpu_display.c   | 13 +++--
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 50 +++++++++----------
 .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 23 +++++----
 3 files changed, 46 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 7a7316731911..55ecc4aa859f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -40,6 +40,7 @@
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_vblank.h>
+#include <drm/drm_drv.h>
 
 static void amdgpu_display_flip_callback(struct dma_fence *f,
 					 struct dma_fence_cb *cb)
@@ -1543,16 +1544,18 @@ int amdgpu_display_suspend_helper(struct amdgpu_device *adev)
 	struct drm_crtc *crtc;
 	struct drm_connector *connector;
 	struct drm_connector_list_iter iter;
+	struct drm_modeset_acquire_ctx ctx;
 	int r;
+	int ret;
 
 	/* turn off display hw */
-	drm_modeset_lock_all(dev);
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
 	drm_connector_list_iter_begin(dev, &iter);
 	drm_for_each_connector_iter(connector, &iter)
 		drm_helper_connector_dpms(connector,
 					  DRM_MODE_DPMS_OFF);
 	drm_connector_list_iter_end(&iter);
-	drm_modeset_unlock_all(dev);
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
 	/* unpin the front buffers and cursors */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
@@ -1590,7 +1593,9 @@ int amdgpu_display_resume_helper(struct amdgpu_device *adev)
 	struct drm_connector *connector;
 	struct drm_connector_list_iter iter;
 	struct drm_crtc *crtc;
+	struct drm_modeset_acquire_ctx ctx;
 	int r;
+	int ret;
 
 	/* pin cursors */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -1612,7 +1617,7 @@ int amdgpu_display_resume_helper(struct amdgpu_device *adev)
 	drm_helper_resume_force_mode(dev);
 
 	/* turn on display hw */
-	drm_modeset_lock_all(dev);
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
 
 	drm_connector_list_iter_begin(dev, &iter);
 	drm_for_each_connector_iter(connector, &iter)
@@ -1620,7 +1625,7 @@ int amdgpu_display_resume_helper(struct amdgpu_device *adev)
 					  DRM_MODE_DPMS_ON);
 	drm_connector_list_iter_end(&iter);
 
-	drm_modeset_unlock_all(dev);
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 9b1fc54555ee..5196c1d26f87 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -80,6 +80,7 @@
 #include <drm/drm_edid.h>
 #include <drm/drm_vblank.h>
 #include <drm/drm_audio_component.h>
+#include <drm/drm_drv.h>
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
@@ -2621,6 +2622,9 @@ static void handle_hpd_irq(void *param)
 #ifdef CONFIG_DRM_AMD_DC_HDCP
 	struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
 #endif
+	struct drm_modeset_acquire_ctx ctx;
+	int ret;
+
 
 	if (adev->dm.disable_hpd_irq)
 		return;
@@ -2646,14 +2650,6 @@ static void handle_hpd_irq(void *param)
 	if (aconnector->base.force && new_connection_type == dc_connection_none) {
 		emulated_link_detect(aconnector->dc_link);
 
-
-		drm_modeset_lock_all(dev);
-		dm_restore_drm_connector_state(dev, connector);
-		drm_modeset_unlock_all(dev);
-
-		if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
-			drm_kms_helper_hotplug_event(dev);
-
 	} else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
 		if (new_connection_type == dc_connection_none &&
 		    aconnector->dc_link->type == dc_connection_none)
@@ -2661,13 +2657,18 @@ static void handle_hpd_irq(void *param)
 
 		amdgpu_dm_update_connector_after_detect(aconnector);
 
-		drm_modeset_lock_all(dev);
-		dm_restore_drm_connector_state(dev, connector);
-		drm_modeset_unlock_all(dev);
-
-		if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
-			drm_kms_helper_hotplug_event(dev);
+	} else {
+		goto out;
 	}
+
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
+	dm_restore_drm_connector_state(dev, connector);
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+	if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
+		drm_kms_helper_hotplug_event(dev);
+
+out:
 	mutex_unlock(&aconnector->hpd_lock);
 
 }
@@ -2756,12 +2757,14 @@ static void handle_hpd_rx_irq(void *param)
 	struct drm_connector *connector = &aconnector->base;
 	struct drm_device *dev = connector->dev;
 	struct dc_link *dc_link = aconnector->dc_link;
+	struct drm_modeset_acquire_ctx ctx;
 	bool is_mst_root_connector = aconnector->mst_mgr.mst_state;
 	bool result = false;
 	enum dc_connection_type new_connection_type = dc_connection_none;
 	struct amdgpu_device *adev = drm_to_adev(dev);
 	union hpd_irq_data hpd_irq_data;
 	bool lock_flag = 0;
+	int ret;
 
 	memset(&hpd_irq_data, 0, sizeof(hpd_irq_data));
 
@@ -2828,12 +2831,6 @@ static void handle_hpd_rx_irq(void *param)
 
 			amdgpu_dm_update_connector_after_detect(aconnector);
 
-
-			drm_modeset_lock_all(dev);
-			dm_restore_drm_connector_state(dev, connector);
-			drm_modeset_unlock_all(dev);
-
-			drm_kms_helper_hotplug_event(dev);
 		} else if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) {
 
 			if (aconnector->fake_enable)
@@ -2841,14 +2838,17 @@ static void handle_hpd_rx_irq(void *param)
 
 			amdgpu_dm_update_connector_after_detect(aconnector);
 
+		} else {
+			goto finish;
+		}
 
-			drm_modeset_lock_all(dev);
-			dm_restore_drm_connector_state(dev, connector);
-			drm_modeset_unlock_all(dev);
+		DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
+		dm_restore_drm_connector_state(dev, connector);
+		DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
 
-			drm_kms_helper_hotplug_event(dev);
-		}
+		drm_kms_helper_hotplug_event(dev);
 	}
+finish:
 #ifdef CONFIG_DRM_AMD_DC_HDCP
 	if (hpd_irq_data.bytes.device_service_irq.bits.CP_IRQ) {
 		if (adev->dm.hdcp_workqueue)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 87daa78a32b8..6e5a8f4fc6bd 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -37,6 +37,8 @@
 #include "link_hwss.h"
 #include "dc/dc_dmub_srv.h"
 
+#include <drm/drm_drv.h>
+
 struct dmub_debugfs_trace_header {
 	uint32_t entry_count;
 	uint32_t reserved[3];
@@ -1191,12 +1193,14 @@ static ssize_t trigger_hotplug(struct file *f, const char __user *buf,
 	struct drm_connector *connector = &aconnector->base;
 	struct dc_link *link = NULL;
 	struct drm_device *dev = connector->dev;
+	struct drm_modeset_acquire_ctx ctx;
 	enum dc_connection_type new_connection_type = dc_connection_none;
 	char *wr_buf = NULL;
 	uint32_t wr_buf_size = 42;
 	int max_param_num = 1;
 	long param[1] = {0};
 	uint8_t param_nums = 0;
+	int ret;
 
 	if (!aconnector || !aconnector->dc_link)
 		return -EINVAL;
@@ -1236,12 +1240,6 @@ static ssize_t trigger_hotplug(struct file *f, const char __user *buf,
 			goto unlock;
 
 		amdgpu_dm_update_connector_after_detect(aconnector);
-
-		drm_modeset_lock_all(dev);
-		dm_restore_drm_connector_state(dev, connector);
-		drm_modeset_unlock_all(dev);
-
-		drm_kms_helper_hotplug_event(dev);
 	} else if (param[0] == 0) {
 		if (!aconnector->dc_link)
 			goto unlock;
@@ -1259,13 +1257,16 @@ static ssize_t trigger_hotplug(struct file *f, const char __user *buf,
 
 		amdgpu_dm_update_connector_after_detect(aconnector);
 
-		drm_modeset_lock_all(dev);
-		dm_restore_drm_connector_state(dev, connector);
-		drm_modeset_unlock_all(dev);
-
-		drm_kms_helper_hotplug_event(dev);
+	} else {
+		goto unlock;
 	}
 
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
+	dm_restore_drm_connector_state(dev, connector);
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+
+	drm_kms_helper_hotplug_event(dev);
+
 unlock:
 	mutex_unlock(&aconnector->hpd_lock);
 
-- 
2.33.0


  parent reply	other threads:[~2021-09-18  6:26 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-16 21:15 [Nouveau] [PATCH 00/15] drm: cleanup: Use DRM_MODESET_LOCK_ALL_* helpers where possible Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 01/15] dmr: cleanup: drm_modeset_lock_all_ctx() --> DRM_MODESET_LOCK_ALL_BEGIN() Fernando Ramos
2021-09-17 15:28   ` Sean Paul
2021-09-17 22:07     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 02/15] dmr/i915: " Fernando Ramos
2021-09-17 15:31   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 03/15] dmr/msm: " Fernando Ramos
2021-09-17 15:29   ` Sean Paul
2021-09-20  1:54   ` kernel test robot
2021-09-20 21:25     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 04/15] drm: cleanup: drm_modeset_lock_all() " Fernando Ramos
2021-09-17 15:35   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 05/15] drm/vmwgfx: " Fernando Ramos
2021-09-17 15:37   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 06/15] drm/tegra: " Fernando Ramos
2021-09-17 15:38   ` Sean Paul
2021-09-17 22:34     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 07/15] drm/shmobile: " Fernando Ramos
2021-09-17 15:38   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 08/15] drm/radeon: " Fernando Ramos
2021-09-17 15:40   ` Sean Paul
2021-09-17 22:32     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 09/15] drm/omapdrm: " Fernando Ramos
2021-09-17 15:40   ` Sean Paul
2021-09-17 15:41   ` Sean Paul
2021-09-17 22:37     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 10/15] drm/nouveau: " Fernando Ramos
2021-09-17 15:42   ` Sean Paul
2021-09-16 21:15 ` [Nouveau] [PATCH 11/15] drm/msm: " Fernando Ramos
2021-09-17 15:42   ` Sean Paul
2021-09-17 22:41     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 12/15] drm/i915: " Fernando Ramos
2021-09-17 15:48   ` Sean Paul
2021-09-17 22:57     ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 13/15] drm/gma500: " Fernando Ramos
2021-09-17 15:49   ` Sean Paul
2021-09-16 21:15 ` Fernando Ramos [this message]
2021-09-17 15:55   ` [Nouveau] [PATCH 14/15] drm/amd: " Sean Paul
2021-09-17 23:17     ` Fernando Ramos
2021-09-18  9:42       ` Fernando Ramos
2021-09-16 21:15 ` [Nouveau] [PATCH 15/15] doc: drm: remove TODO entry regarding DRM_MODSET_LOCK_ALL cleanup Fernando Ramos
2021-09-17 15:56   ` Sean Paul
2021-09-17 23:21     ` Fernando Ramos
2021-09-17 15:24 ` [Nouveau] [PATCH 00/15] drm: cleanup: Use DRM_MODESET_LOCK_ALL_* helpers where possible Daniel Vetter
2021-09-17 21:41   ` Fernando Ramos

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