dri-devel April 2016

dri-devel@lists.freedesktop.org

197 participants
1285 discussions

[RFC PATCH v1 0/4] Add Rockchip RGA support
by Yakir Yang 05 Apr '16

05 Apr '16

Hi, Mark and all. This patch set would add the RGA direct rendering based 2d graphics acceleration module. This patch set is based on git repository below: git://people.freedesktop.org/~airlied/linux drm-next commit id: 568d7c764ae01f3706085ac8f0d8a8ac7e826bd7 And the RGA driver is based on Exynos G2D driver, it only manages the command lists received from user, so user should make the command list to data and registers needed by operation to use. I have prepared an userspace demo … [View More]

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[PATCH] drm/vc4: Fix NULL deref in HDMI init error path
by Eric Anholt 05 Apr '16

05 Apr '16

If you make it here other than through err_destroy_encoder, vc4->hdmi is still NULL. Signed-off-by: Eric Anholt <eric(a)anholt.net> --- drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index d8b8649..fd2644d 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -573,7 +573,7 @@ err_unprepare_hsm: err_unprepare_pix: clk_disable_unprepare(… [View More]

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[PATCH] drm/dp/mst: Validate port in drm_dp_payload_send_msg()
by Lyude 04 Apr '16

04 Apr '16

With the joys of things running concurrently, there's always a chance that the port we get passed in drm_dp_payload_send_msg() isn't actually valid anymore. Because of this, we need to make sure we validate the reference to the port before we use it otherwise we risk running into various race conditions. For instance, on the Dell MST monitor I have here for testing, hotplugging it enough times causes us to kernel panic: [drm:intel_mst_enable_dp] 1 [drm:drm_dp_update_payload_part2] payload 0 1 [… [View More]drm:intel_get_hpd_pins] hotplug event received, stat 0x00200000, dig 0x10101011, pins 0x00000020 [drm:intel_hpd_irq_handler] digital hpd port B - short [drm:intel_dp_hpd_pulse] got hpd irq on port B - short [drm:intel_dp_check_mst_status] got esi 00 10 00 [drm:drm_dp_update_payload_part2] payload 1 1 general protection fault: 0000 [#1] SMP … Call Trace: [<ffffffffa012b632>] drm_dp_update_payload_part2+0xc2/0x130 [drm_kms_helper] [<ffffffffa032ef08>] intel_mst_enable_dp+0xf8/0x180 [i915] [<ffffffffa0310dbd>] haswell_crtc_enable+0x3ed/0x8c0 [i915] [<ffffffffa030c84d>] intel_atomic_commit+0x5ad/0x1590 [i915] [<ffffffffa01db877>] ? drm_atomic_set_crtc_for_connector+0x57/0xe0 [drm] [<ffffffffa01dc4e7>] drm_atomic_commit+0x37/0x60 [drm] [<ffffffffa0130a3a>] drm_atomic_helper_set_config+0x7a/0xb0 [drm_kms_helper] [<ffffffffa01cc482>] drm_mode_set_config_internal+0x62/0x100 [drm] [<ffffffffa01d02ad>] drm_mode_setcrtc+0x3cd/0x4e0 [drm] [<ffffffffa01c18e3>] drm_ioctl+0x143/0x510 [drm] [<ffffffffa01cfee0>] ? drm_mode_setplane+0x1b0/0x1b0 [drm] [<ffffffff810f79a7>] ? hrtimer_start_range_ns+0x1b7/0x3a0 [<ffffffff81212962>] do_vfs_ioctl+0x92/0x570 [<ffffffff81590852>] ? __sys_recvmsg+0x42/0x80 [<ffffffff81212eb9>] SyS_ioctl+0x79/0x90 [<ffffffff816b4e32>] entry_SYSCALL_64_fastpath+0x1a/0xa4 RIP [<ffffffffa012b026>] drm_dp_payload_send_msg+0x146/0x1f0 [drm_kms_helper] Which occurs because of the hotplug event shown in the log, which ends up causing DRM's dp helpers to drop the port we're updating the payload on and panic. Signed-off-by: Lyude <cpaul(a)redhat.com> Reviewed-by: David Airlie <airlied(a)linux.ie> --- drivers/gpu/drm/drm_dp_mst_topology.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 27fbd79..e17fbda 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -1672,13 +1672,19 @@ static int drm_dp_payload_send_msg(struct drm_dp_mst_topology_mgr *mgr, u8 sinks[DRM_DP_MAX_SDP_STREAMS]; int i; + port = drm_dp_get_validated_port_ref(mgr, port); + if (!port) + return -EINVAL; + port_num = port->port_num; mstb = drm_dp_get_validated_mstb_ref(mgr, port->parent); if (!mstb) { mstb = drm_dp_get_last_connected_port_and_mstb(mgr, port->parent, &port_num); - if (!mstb) + if (!mstb) { + drm_dp_put_port(port); return -EINVAL; + } } txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL); @@ -1707,6 +1713,7 @@ static int drm_dp_payload_send_msg(struct drm_dp_mst_topology_mgr *mgr, kfree(txmsg); fail_put: drm_dp_put_mst_branch_device(mstb); + drm_dp_put_port(port); return ret; } -- 2.5.5 [View Less]

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[PATCH] drm/i915/skl: Disable underrun reporting on MST unplug
by Lyude 04 Apr '16

04 Apr '16

Unplugging MST displays usually causes underruns, so turn off underrun reporting so people don't report false positives. Signed-off-by: Lyude <cpaul(a)redhat.com> --- drivers/gpu/drm/i915/intel_display.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 6e0d828..fa8a72b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5146,6 +5146,10 … [View More]

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[PATCH] drm/edid: Fix DMT 1024x768@43Hz (interlaced) timings
by Paul Parsons 04 Apr '16

04 Apr '16

One of the VESA DMT timings in drm_dmt_modes[] is slightly off. 1024x768@43Hz (interlaced) vsync_end should be 776, not 772. This brings it into line with the identical timings in edid_est_modes[]. Signed-off-by: Paul Parsons <lost.distance(a)yahoo.com> --- diff -ru a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c --- a/drivers/gpu/drm/drm_edid.c 2016-03-14 04:28:54.000000000 +0000 +++ b/drivers/gpu/drm/drm_edid.c 2016-04-04 20:19:41.113104549 +0100 @@ -204,7 +204,7 @@ … [View More]

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[PATCH 0/4] drm: DP++ adaptor support
by ville.syrjala＠linux.intel.com 04 Apr '16

04 Apr '16

From: Ville Syrjälä <ville.syrjala(a)linux.intel.com> While looking at a regression caused by i915's use of 12bpc HDMI mode, I ended up reading the DP dual mode spec, and that lead to this patch series. I intentionally made the basics of the helper look somewhat like Thierry's HDMI 2.0 SCDC stuff [1], except with a few less bugs :P The entire series is available here: git://github.com/vsyrjala/linux.git dp_dual_mode_2 [1] https://lists.freedesktop.org/archives/dri-devel/2015-September/… [View More]

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[Bug 94774] 2D Rendering issues in GTK and X11 applications
by bugzilla-daemon＠freedesktop.org 04 Apr '16

04 Apr '16

https://bugs.freedesktop.org/show_bug.cgi?id=94774 Bug ID: 94774 Summary: 2D Rendering issues in GTK and X11 applications Product: Mesa Version: 11.2 Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel(a)lists.freedesktop.org Reporter: jan.burgmeier(a)unicon-software.com QA Contact: … [View More]

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[Bug 94811] ATI radeon driver displays nothing or a client refused to switch message on hybrid graphics
by bugzilla-daemon＠freedesktop.org 04 Apr '16

04 Apr '16

https://bugs.freedesktop.org/show_bug.cgi?id=94811 Bug ID: 94811 Summary: ATI radeon driver displays nothing or a client refused to switch message on hybrid graphics Product: DRI Version: unspecified Hardware: Other OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon Assignee: dri-devel(a)lists.freedesktop.org … [View More]

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[patch] drm: ARM HDLCD - fix an error code
by Dan Carpenter 04 Apr '16

04 Apr '16

We accidentally return PTR_ERR(NULL) which is success instead of a negative error code. Fixes: 879e40bea6f2 ('drm: ARM HDLCD - get rid of devm_clk_put()') Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c index 734849f..3ac1ae4 100644 --- a/drivers/gpu/drm/arm/hdlcd_drv.c +++ b/drivers/gpu/drm/arm/hdlcd_drv.c @@ -55,8 +55,9 @@ static int hdlcd_load(struct drm_device *drm, unsigned long flags) hdlcd-… [View More]

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[GIT PULL] drm/hdlcd: fix for v4.6-rc2
by Liviu Dudau 04 Apr '16

04 Apr '16

Hi David, There is one patch that Alexey Brodkin has submitted a while ago for cleanup up the maintainance of pixel clock for HDLCD that I would like to be pulled for v4.6-rcX. The branch has a couple of commits on top of your drm-next that will disappear once you update your branch to v4.6-rc1. I am only interested in you pulling Andrey's patch. Best regards, Liviu The following changes since commit 3e9e337263973f160e1129e1d7eaed47c6a9ccae: arm64: Juno: Add HDLCD support to the Juno … [View More]

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dri-devel April 2016