--- /dev/null
+From ba30670f4d5292c4e7f7980bbd5071f7c4794cdd Mon Sep 17 00:00:00 2001
+From: Mike Snitzer <snitzer@redhat.com>
+Date: Tue, 13 Oct 2015 12:04:28 -0400
+Subject: dm thin: fix missing pool reference count decrement in pool_ctr error path
+
+From: Mike Snitzer <snitzer@redhat.com>
+
+commit ba30670f4d5292c4e7f7980bbd5071f7c4794cdd upstream.
+
+Fixes: ac8c3f3df ("dm thin: generate event when metadata threshold passed")
+Signed-off-by: Mike Snitzer <snitzer@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/md/dm-thin.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/md/dm-thin.c
++++ b/drivers/md/dm-thin.c
+@@ -2959,7 +2959,7 @@ static int pool_ctr(struct dm_target *ti
+ metadata_low_callback,
+ pool);
+ if (r)
+- goto out_free_pt;
++ goto out_flags_changed;
+
+ pt->callbacks.congested_fn = pool_is_congested;
+ dm_table_add_target_callbacks(ti->table, &pt->callbacks);
--- /dev/null
+From ae491542cbbbcca0ec8938c37d4079a985e58440 Mon Sep 17 00:00:00 2001
+From: Dave Airlie <airlied@gmail.com>
+Date: Wed, 14 Oct 2015 18:51:17 +1000
+Subject: drm/dp/mst: make mst i2c transfer code more robust.
+
+From: Dave Airlie <airlied@gmail.com>
+
+commit ae491542cbbbcca0ec8938c37d4079a985e58440 upstream.
+
+This zeroes the msg so no random stack data ends up getting
+sent, it also limits the function to not accepting > 4
+i2c msgs.
+
+Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Signed-off-by: Dave Airlie <airlied@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/drm_dp_mst_topology.c | 3 ++-
+ include/drm/drm_dp_mst_helper.h | 3 ++-
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/drm_dp_mst_topology.c
++++ b/drivers/gpu/drm/drm_dp_mst_topology.c
+@@ -2766,12 +2766,13 @@ static int drm_dp_mst_i2c_xfer(struct i2
+ if (msgs[num - 1].flags & I2C_M_RD)
+ reading = true;
+
+- if (!reading) {
++ if (!reading || (num - 1 > DP_REMOTE_I2C_READ_MAX_TRANSACTIONS)) {
+ DRM_DEBUG_KMS("Unsupported I2C transaction for MST device\n");
+ ret = -EIO;
+ goto out;
+ }
+
++ memset(&msg, 0, sizeof(msg));
+ msg.req_type = DP_REMOTE_I2C_READ;
+ msg.u.i2c_read.num_transactions = num - 1;
+ msg.u.i2c_read.port_number = port->port_num;
+--- a/include/drm/drm_dp_mst_helper.h
++++ b/include/drm/drm_dp_mst_helper.h
+@@ -253,6 +253,7 @@ struct drm_dp_remote_dpcd_write {
+ u8 *bytes;
+ };
+
++#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
+ struct drm_dp_remote_i2c_read {
+ u8 num_transactions;
+ u8 port_number;
+@@ -262,7 +263,7 @@ struct drm_dp_remote_i2c_read {
+ u8 *bytes;
+ u8 no_stop_bit;
+ u8 i2c_transaction_delay;
+- } transactions[4];
++ } transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
+ u8 read_i2c_device_id;
+ u8 num_bytes_read;
+ };
--- /dev/null
+From 51a4726b04e880fdd9b4e0e58b13f70b0a68a7f5 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Wed, 30 Sep 2015 16:45:52 -0400
+Subject: drm/radeon: add pm sysfs files late
+
+From: Alex Deucher <alexander.deucher@amd.com>
+
+commit 51a4726b04e880fdd9b4e0e58b13f70b0a68a7f5 upstream.
+
+They were added relatively early in the driver init process
+which meant that in some cases the driver was not finished
+initializing before external tools tried to use them which
+could result in a crash depending on the timing.
+
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/radeon/radeon_display.c | 14 +------
+ drivers/gpu/drm/radeon/radeon_pm.c | 63 +++++++++++++++++++-------------
+ 2 files changed, 40 insertions(+), 37 deletions(-)
+
+--- a/drivers/gpu/drm/radeon/radeon_display.c
++++ b/drivers/gpu/drm/radeon/radeon_display.c
+@@ -1633,18 +1633,8 @@ int radeon_modeset_init(struct radeon_de
+ radeon_fbdev_init(rdev);
+ drm_kms_helper_poll_init(rdev->ddev);
+
+- if (rdev->pm.dpm_enabled) {
+- /* do dpm late init */
+- ret = radeon_pm_late_init(rdev);
+- if (ret) {
+- rdev->pm.dpm_enabled = false;
+- DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
+- }
+- /* set the dpm state for PX since there won't be
+- * a modeset to call this.
+- */
+- radeon_pm_compute_clocks(rdev);
+- }
++ /* do pm late init */
++ ret = radeon_pm_late_init(rdev);
+
+ return 0;
+ }
+--- a/drivers/gpu/drm/radeon/radeon_pm.c
++++ b/drivers/gpu/drm/radeon/radeon_pm.c
+@@ -1331,14 +1331,6 @@ static int radeon_pm_init_old(struct rad
+ INIT_DELAYED_WORK(&rdev->pm.dynpm_idle_work, radeon_dynpm_idle_work_handler);
+
+ if (rdev->pm.num_power_states > 1) {
+- /* where's the best place to put these? */
+- ret = device_create_file(rdev->dev, &dev_attr_power_profile);
+- if (ret)
+- DRM_ERROR("failed to create device file for power profile\n");
+- ret = device_create_file(rdev->dev, &dev_attr_power_method);
+- if (ret)
+- DRM_ERROR("failed to create device file for power method\n");
+-
+ if (radeon_debugfs_pm_init(rdev)) {
+ DRM_ERROR("Failed to register debugfs file for PM!\n");
+ }
+@@ -1396,20 +1388,6 @@ static int radeon_pm_init_dpm(struct rad
+ goto dpm_failed;
+ rdev->pm.dpm_enabled = true;
+
+- ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
+- if (ret)
+- DRM_ERROR("failed to create device file for dpm state\n");
+- ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
+- if (ret)
+- DRM_ERROR("failed to create device file for dpm state\n");
+- /* XXX: these are noops for dpm but are here for backwards compat */
+- ret = device_create_file(rdev->dev, &dev_attr_power_profile);
+- if (ret)
+- DRM_ERROR("failed to create device file for power profile\n");
+- ret = device_create_file(rdev->dev, &dev_attr_power_method);
+- if (ret)
+- DRM_ERROR("failed to create device file for power method\n");
+-
+ if (radeon_debugfs_pm_init(rdev)) {
+ DRM_ERROR("Failed to register debugfs file for dpm!\n");
+ }
+@@ -1550,9 +1528,44 @@ int radeon_pm_late_init(struct radeon_de
+ int ret = 0;
+
+ if (rdev->pm.pm_method == PM_METHOD_DPM) {
+- mutex_lock(&rdev->pm.mutex);
+- ret = radeon_dpm_late_enable(rdev);
+- mutex_unlock(&rdev->pm.mutex);
++ if (rdev->pm.dpm_enabled) {
++ ret = device_create_file(rdev->dev, &dev_attr_power_dpm_state);
++ if (ret)
++ DRM_ERROR("failed to create device file for dpm state\n");
++ ret = device_create_file(rdev->dev, &dev_attr_power_dpm_force_performance_level);
++ if (ret)
++ DRM_ERROR("failed to create device file for dpm state\n");
++ /* XXX: these are noops for dpm but are here for backwards compat */
++ ret = device_create_file(rdev->dev, &dev_attr_power_profile);
++ if (ret)
++ DRM_ERROR("failed to create device file for power profile\n");
++ ret = device_create_file(rdev->dev, &dev_attr_power_method);
++ if (ret)
++ DRM_ERROR("failed to create device file for power method\n");
++
++ mutex_lock(&rdev->pm.mutex);
++ ret = radeon_dpm_late_enable(rdev);
++ mutex_unlock(&rdev->pm.mutex);
++ if (ret) {
++ rdev->pm.dpm_enabled = false;
++ DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
++ } else {
++ /* set the dpm state for PX since there won't be
++ * a modeset to call this.
++ */
++ radeon_pm_compute_clocks(rdev);
++ }
++ }
++ } else {
++ if (rdev->pm.num_power_states > 1) {
++ /* where's the best place to put these? */
++ ret = device_create_file(rdev->dev, &dev_attr_power_profile);
++ if (ret)
++ DRM_ERROR("failed to create device file for power profile\n");
++ ret = device_create_file(rdev->dev, &dev_attr_power_method);
++ if (ret)
++ DRM_ERROR("failed to create device file for power method\n");
++ }
+ }
+ return ret;
+ }
--- /dev/null
+From bc8c131ccdd62d4ed4f33c6b50f92907e7c32dee Mon Sep 17 00:00:00 2001
+From: Dave Airlie <airlied@redhat.com>
+Date: Thu, 15 Oct 2015 09:04:21 +1000
+Subject: drm/radeon: attach tile property to mst connector
+
+From: Dave Airlie <airlied@redhat.com>
+
+commit bc8c131ccdd62d4ed4f33c6b50f92907e7c32dee upstream.
+
+This allows tiled monitors to work with radeon once mst is enabled.
+
+Signed-off-by: Dave Airlie <airlied@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/radeon/radeon_dp_mst.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
++++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
+@@ -283,6 +283,7 @@ static struct drm_connector *radeon_dp_a
+ radeon_connector->mst_encoder = radeon_dp_create_fake_mst_encoder(master);
+
+ drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
++ drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);
+ drm_mode_connector_set_path_property(connector, pathprop);
+ drm_reinit_primary_mode_group(dev);
+
projects / thirdparty / kernel / stable-queue.git / commitdiff
