dri-devel December 2014

dri-devel@lists.freedesktop.org

156 participants
1053 discussions

[PATCH] drm: fb helper should avoid sleeping in panic context
by rui wang 15 Dec '14

15 Dec '14

Hi All, Any comment ? Or any better idea how this should be fixed? Regards, Rui ---------- Forwarded message ---------- From: ruiv.wang(a)gmail.com Date: Thu, 4 Dec 2014 22:11:35 +0800 Subject: [PATCH] drm: fb helper should avoid sleeping in panic context To: airlied(a)redhat.com, daniel.vetter(a)ffwll.ch, tony.luck(a)intel.com, bp(a)alien8.de, aris(a)redhat.com, rui.y.wang(a)intel.com Cc: linux-kernel(a)vger.kernel.org From: Rui Wang <rui.y.wang(a)intel.com> There are still some places in the fb helper that need to avoid sleeping in panic context. Here's an example: [ 65.615496] bad: scheduling from the idle thread! [ 65.620747] CPU: 92 PID: 0 Comm: swapper/92 Tainted: G M E 3.18.0-rc4-7-default+ #20 [ 65.630364] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS BRHSXSD1.86B.0056.R01.1409242327 09/24/2014 [ 65.641923] ffff88087f693d80 ffff88087f689878 ffffffff81566db9 0000000000000000 [ 65.650226] ffff88087f693d80 ffff88087f689898 ffffffff810871ff ffff88046eb3e0d0 [ 65.658527] ffff88087f693d80 ffff88087f6898c8 ffffffff8107c1fa 000000017f6898b8 [ 65.666830] Call Trace: [ 65.669557] <#MC> [<ffffffff81566db9>] dump_stack+0x46/0x58 [ 65.675994] [<ffffffff810871ff>] dequeue_task_idle+0x2f/0x40 [ 65.682412] [<ffffffff8107c1fa>] dequeue_task+0x5a/0x80 [ 65.688345] [<ffffffff810804f3>] deactivate_task+0x23/0x30 [ 65.694569] [<ffffffff81569050>] __schedule+0x580/0x7f0 [ 65.700502] [<ffffffff81569739>] schedule_preempt_disabled+0x29/0x70 [ 65.707696] [<ffffffff8156abb6>] __ww_mutex_lock_slowpath+0xb8/0x162 [ 65.714891] [<ffffffff8156acb3>] __ww_mutex_lock+0x53/0x85 [ 65.721125] [<ffffffffa00b3a5d>] drm_modeset_lock+0x3d/0x110 [drm] [ 65.728132] [<ffffffffa00b3c2a>] __drm_modeset_lock_all+0x8a/0x120 [drm] [ 65.735721] [<ffffffffa00b3cd0>] drm_modeset_lock_all+0x10/0x30 [drm] [ 65.743015] [<ffffffffa01af8bf>] drm_fb_helper_pan_display+0x2f/0xf0 [drm_kms_helper] [ 65.751857] [<ffffffff8132bd21>] fb_pan_display+0xd1/0x1a0 [ 65.758081] [<ffffffff81326010>] bit_update_start+0x20/0x50 [ 65.764400] [<ffffffff813259f2>] fbcon_switch+0x3a2/0x550 [ 65.770528] [<ffffffff813a01c9>] redraw_screen+0x189/0x240 [ 65.776750] [<ffffffff81322f8a>] fbcon_blank+0x20a/0x2d0 [ 65.782778] [<ffffffff8137d359>] ? erst_writer+0x209/0x330 [ 65.789002] [<ffffffff810ba2f3>] ? internal_add_timer+0x63/0x80 [ 65.795710] [<ffffffff810bc137>] ? mod_timer+0x127/0x1e0 [ 65.801740] [<ffffffff813a0cd8>] do_unblank_screen+0xa8/0x1d0 [ 65.808255] [<ffffffff813a0e10>] unblank_screen+0x10/0x20 [ 65.814381] [<ffffffff812ca0d9>] bust_spinlocks+0x19/0x40 [ 65.820508] [<ffffffff81561ca7>] panic+0x106/0x1f5 [ 65.825955] [<ffffffff8102336c>] mce_panic+0x2ac/0x2e0 [ 65.831789] [<ffffffff812c796a>] ? delay_tsc+0x4a/0x80 [ 65.837625] [<ffffffff81024e1f>] do_machine_check+0xbaf/0xbf0 [ 65.844138] [<ffffffff813365d7>] ? intel_idle+0xc7/0x150 [ 65.850166] [<ffffffff8156f03f>] machine_check+0x1f/0x30 [ 65.856195] [<ffffffff813365d7>] ? intel_idle+0xc7/0x150 [ 65.862222] <<EOE>> [<ffffffff814283d5>] cpuidle_enter_state+0x55/0x170 [ 65.869823] [<ffffffff814285a7>] cpuidle_enter+0x17/0x20 [ 65.875852] [<ffffffff81097b08>] cpu_startup_entry+0x2d8/0x370 [ 65.882467] [<ffffffff8102fe29>] start_secondary+0x159/0x180 There's __drm_modeset_lock_all() which Daniel Vetter introduced for this purpose. We can leverage that without reinventing anything. This patch works with the latest kernel. Signed-off-by: Rui Wang <rui.y.wang(a)intel.com> --- drivers/gpu/drm/drm_fb_helper.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 0c0c39b..70dd2f4 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -732,7 +732,9 @@ int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) int i, j, rc = 0; int start; - drm_modeset_lock_all(dev); + if (__drm_modeset_lock_all(dev, !!oops_in_progress)) { + return -EBUSY; + } if (!drm_fb_helper_is_bound(fb_helper)) { drm_modeset_unlock_all(dev); return -EBUSY; @@ -910,7 +912,9 @@ int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, int ret = 0; int i; - drm_modeset_lock_all(dev); + if (__drm_modeset_lock_all(dev, !!oops_in_progress)) { + return -EBUSY; + } if (!drm_fb_helper_is_bound(fb_helper)) { drm_modeset_unlock_all(dev); return -EBUSY; -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

4 5

Exposing monitor layout to desktop managers
by Thomas Hellstrom 15 Dec '14

15 Dec '14

Hi! I'd like to have a standard / generic way of exposing virtual monitor layout to desktop managers. This would then serve as a *hint* to those managers to set the desktop up accordingly. Of course, this is mostly for virtual hardware, since without accelerometers, gyros and gps positioners on monitors, the kernel wouldn't be able to know where the user put his monitors. One could argue that this is purely user-space policy, but since those managers monitor the kms interface anyway it would be a convenient place to expose this information. One idea would to place the x,y location in an output property. Another idea would be to send new layout for all connected output as a drm event. Any ideas, comments etc. would be appreciated. Thanks, Thomas

2 3

[drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem.
by Toralf Förster 15 Dec '14

15 Dec '14

A syslog entry of a newly installed ThinkPad T440s advices me : Dec 12 00:17:59 t44 kernel: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. after ei s2disk'ed and resumed it. So I did it and recompiled the kernel with CONFIG_MMIOTRACE=y, s2disk'ed the sytem again and got this (it is a hardened 64 bit Gentoo kernel): Dec 12 13:22:12 t44 kernel: ACPI: Preparing to enter system sleep state S4 Dec 12 13:22:12 t44 kernel: PM: Saving platform NVS memory Dec 12 13:22:12 t44 kernel: Disabling non-boot CPUs ... Dec 12 13:22:12 t44 kernel: intel_pstate CPU 1 exiting Dec 12 13:22:12 t44 kernel: kvm: disabling virtualization on CPU1 Dec 12 13:22:12 t44 kernel: smpboot: CPU 1 is now offline Dec 12 13:22:12 t44 kernel: intel_pstate CPU 2 exiting Dec 12 13:22:12 t44 kernel: kvm: disabling virtualization on CPU2 Dec 12 13:22:12 t44 kernel: smpboot: CPU 2 is now offline Dec 12 13:22:12 t44 kernel: intel_pstate CPU 3 exiting Dec 12 13:22:12 t44 kernel: kvm: disabling virtualization on CPU3 Dec 12 13:22:12 t44 kernel: smpboot: CPU 3 is now offline Dec 12 13:22:12 t44 kernel: PM: Creating hibernation image: Dec 12 13:22:13 t44 kernel: PM: Need to copy 135989 pages Dec 12 13:22:12 t44 kernel: PM: Restoring platform NVS memory Dec 12 13:22:12 t44 kernel: Enabling non-boot CPUs ... Dec 12 13:22:12 t44 kernel: x86: Booting SMP configuration: Dec 12 13:22:12 t44 kernel: smpboot: Booting Node 0 Processor 1 APIC 0x1 Dec 12 13:22:12 t44 kernel: PAX: PCID detected Dec 12 13:22:12 t44 kernel: PAX: strong UDEREF enabled Dec 12 13:22:12 t44 kernel: PAX: INVPCID detected Dec 12 13:22:12 t44 kernel: kvm: enabling virtualization on CPU1 Dec 12 13:22:12 t44 kernel: CPU1 is up Dec 12 13:22:12 t44 kernel: smpboot: Booting Node 0 Processor 2 APIC 0x2 Dec 12 13:22:13 t44 kernel: PAX: PCID detected Dec 12 13:22:13 t44 kernel: PAX: strong UDEREF enabled Dec 12 13:22:13 t44 kernel: PAX: INVPCID detected Dec 12 13:22:13 t44 kernel: kvm: enabling virtualization on CPU2 Dec 12 13:22:13 t44 kernel: CPU2 is up Dec 12 13:22:13 t44 kernel: smpboot: Booting Node 0 Processor 3 APIC 0x3 Dec 12 13:22:13 t44 kernel: PAX: PCID detected Dec 12 13:22:13 t44 kernel: PAX: strong UDEREF enabled Dec 12 13:22:13 t44 kernel: PAX: INVPCID detected Dec 12 13:22:13 t44 kernel: kvm: enabling virtualization on CPU3 Dec 12 13:22:13 t44 kernel: CPU3 is up Dec 12 13:22:13 t44 kernel: ACPI: Waking up from system sleep state S4 Dec 12 13:22:13 t44 kernel: thinkpad_acpi: EC reports that Thermal Table has changed Dec 12 13:22:13 t44 kernel: acpi LNXPOWER:02: Turning OFF Dec 12 13:22:13 t44 kernel: PM: noirq restore of devices complete after 11.039 msecs Dec 12 13:22:13 t44 kernel: ------------[ cut here ]------------ Dec 12 13:22:13 t44 kernel: WARNING: CPU: 3 PID: 2750 at drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x8d/0xa0 [i915]() Dec 12 13:22:13 t44 kernel: Unclaimed register detected before reading register 0x130040 Dec 12 13:22:13 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet hid_generic hid_cherry usbhid hid uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev arc4 snd_hda_codec_generic x86_pkg_temp_thermal coretemp kvm_intel evdev iTCO_wdt kvm iwlmvm aesni_intel aes_x86_64 mac80211 glue_helper lrw gf128mul ablk_helper cryptd psmouse iwlwifi atkbd cfg80211 thermal wmi i915 cfbfillrect fbcon thinkpad_acpi cfbimgblt bitblit softcursor nvram font i2c_algo_bit rfkill cfbcopyarea tpm_tis tpm battery ac drm_kms_helper snd_hda_intel video snd_hda_controller drm Dec 12 13:22:13 t44 kernel: intel_gtt e1000e i2c_i801 agpgart ehci_pci xhci_hcd snd_hda_codec ptp ehci_hcd button snd_pcm fb i2c_core fbdev pps_core processor lpc_ich snd_timer usbcore mfd_core snd thermal_sys usb_common soundcore hwmon [last unloaded: microcode] Dec 12 13:22:13 t44 kernel: CPU: 3 PID: 2750 Comm: kworker/u8:6 Not tainted 3.17.6-hardened #7 Dec 12 13:22:13 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014 Dec 12 13:22:13 t44 kernel: Workqueue: events_unbound ffffffff81077030 Dec 12 13:22:13 t44 kernel: ffffffff818147c7 0000000000000000 0000000000000009 ffffc9002a6cbb68 Dec 12 13:22:13 t44 kernel: ffffffff815092b5 ffffc9002a6cbbb0 ffffc9002a6cbba0 ffffffff810527bd Dec 12 13:22:13 t44 kernel: ffffffffc0614c50 0000000000000210 ffffffffc0614c78 ffff88032cc80060 Dec 12 13:22:13 t44 kernel: Call Trace: Dec 12 13:22:13 t44 kernel: [<ffffffff815092b5>] dump_stack+0x45/0x5c Dec 12 13:22:13 t44 kernel: [<ffffffff810527bd>] warn_slowpath_common+0x7d/0xa0 Dec 12 13:22:13 t44 kernel: [<ffffffffc0614c50>] ? i915_ioctls+0x4db0/0x16b28 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc0614c78>] ? i915_ioctls+0x4dd8/0x16b28 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffff81052840>] warn_slowpath_fmt+0x60/0x80 Dec 12 13:22:13 t44 kernel: [<ffffffffc0614c78>] ? i915_ioctls+0x4dd8/0x16b28 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffff8144d384>] ? pci_conf1_write+0xc4/0x110 Dec 12 13:22:13 t44 kernel: [<ffffffffc061f7a1>] ? i915_ioctls+0xf901/0x16b28 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc061f78e>] ? i915_ioctls+0xf8ee/0x16b28 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05a2e7d>] hsw_unclaimed_reg_debug.isra.11+0x8d/0xa0 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05a5dbe>] gen6_read32+0x5e/0x170 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05584b0>] ? i915_resume_early+0x50/0x50 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05bbcac>] hsw_disable_pc8+0x4c/0x3f0 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05584b0>] ? i915_resume_early+0x50/0x50 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc0558300>] i915_drm_thaw_early+0x60/0x70 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05584a3>] i915_resume_early+0x43/0x50 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffffc05584c9>] i915_pm_resume_early+0x19/0x30 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffff813e1975>] dpm_run_callback+0x45/0x130 Dec 12 13:22:13 t44 kernel: [<ffffffffc05584b0>] ? i915_resume_early+0x50/0x50 [i915] Dec 12 13:22:13 t44 kernel: [<ffffffff813e1c9a>] device_resume_early+0x9a/0x160 Dec 12 13:22:13 t44 kernel: [<ffffffff813e1d80>] async_resume_early+0x20/0x50 Dec 12 13:22:13 t44 kernel: [<ffffffff81077076>] async_run_entry_fn+0x46/0x140 Dec 12 13:22:13 t44 kernel: [<ffffffff8106e1cd>] process_one_work+0x14d/0x420 Dec 12 13:22:13 t44 kernel: [<ffffffff8106f39d>] worker_thread+0x12d/0x4c0 Dec 12 13:22:13 t44 kernel: [<ffffffff8106f270>] ? destroy_workqueue+0x1e0/0x1e0 Dec 12 13:22:13 t44 kernel: [<ffffffff810740c0>] kthread+0xf0/0x110 Dec 12 13:22:13 t44 kernel: [<ffffffff81073fd0>] ? kthread_create_on_node+0x190/0x190 Dec 12 13:22:13 t44 kernel: [<ffffffff81510944>] ret_from_fork+0x74/0xa0 Dec 12 13:22:13 t44 kernel: [<ffffffff81073fd0>] ? kthread_create_on_node+0x190/0x190 Dec 12 13:22:13 t44 kernel: ---[ end trace 257ccda62b742443 ]--- Dec 12 13:22:13 t44 kernel: PM: early restore of devices complete after 6.122 msecs Dec 12 13:22:13 t44 kernel: usb usb1: root hub lost power or was reset Dec 12 13:22:13 t44 kernel: usb usb2: root hub lost power or was reset Dec 12 13:22:13 t44 kernel: snd_hda_intel 0000:00:1b.0: irq 43 for MSI/MSI-X Dec 12 13:22:13 t44 kernel: xhci_hcd 0000:00:14.0: irq 44 for MSI/MSI-X Dec 12 13:22:13 t44 kernel: usb usb3: root hub lost power or was reset Dec 12 13:22:13 t44 kernel: sd 0:0:0:0: [sda] Starting disk Dec 12 13:22:13 t44 kernel: rtc_cmos 00:02: System wakeup disabled by ACPI Dec 12 13:22:13 t44 kernel: ehci-pci 0000:00:1d.0: cache line size of 64 is not supported Dec 12 13:22:13 t44 kernel: iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio. Dec 12 13:22:13 t44 kernel: e1000e 0000:00:19.0: irq 46 for MSI/MSI-X -- Toralf pgp key: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 0076 E94E

3 5

[PATCH] drm/radeon: evergreen/cayman indirect draw support
by Glenn Kennard 15 Dec '14

15 Dec '14

Signed-off-by: Glenn Kennard <glenn.kennard(a)gmail.com> --- See patch sent to mesa-dev(a)lists.freedesktop.org for userspace usage. drivers/gpu/drm/radeon/evergreen_cs.c | 76 +++++++++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/evergreend.h | 1 + drivers/gpu/drm/radeon/radeon_drv.c | 3 +- 3 files changed, 79 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 5c8b358..6173df3 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -1896,6 +1896,19 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p, } break; } + case PACKET3_INDEX_BUFFER_SIZE: + { + if (pkt->count != 0) { + DRM_ERROR("bad INDEX_BUFFER_SIZE\n"); + return -EINVAL; + } + r = evergreen_cs_track_check(p); + if (r) { + dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__); + return r; + } + break; + } case PACKET3_DRAW_INDEX: { uint64_t offset; @@ -2006,6 +2019,68 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p, return r; } break; + case PACKET3_SET_BASE: + { + /* + DW 1 HEADER Header of the packet. Shader_Type in bit 1 of the Header will correspond to the shader type of the Load, see Type-3 Packet. + 2 BASE_INDEX Bits [3:0] BASE_INDEX - Base Index specifies which base address is specified in the last two DWs. + 0001: DX11 Draw_Index_Indirect Patch Table Base: Base address for Draw_Index_Indirect data. + 3 ADDRESS_LO Bits [31:3] - Lower bits of QWORD-Aligned Address. Bits [2:0] - Reserved + 4 ADDRESS_HI Bits [31:8] - Reserved. Bits [7:0] - Upper bits of Address [47:32] + */ + uint64_t offset; + + if (pkt->count != 2) { + DRM_ERROR("bad SET_BASE\n"); + return -EINVAL; + } + + /* currently only supporting setting indirect draw buffer base address */ + if (radeon_get_ib_value(p, idx) != 1) { + DRM_ERROR("bad SET_BASE\n"); + return -EINVAL; + } + + r = radeon_cs_packet_next_reloc(p, &reloc, 0); + if (r) { + DRM_ERROR("bad SET_BASE\n"); + return -EINVAL; + } + + offset = reloc->gpu_offset + + radeon_get_ib_value(p, idx+1) + + ((u64)(radeon_get_ib_value(p, idx+2) & 0xff) << 32); + + ib[idx+1] = offset; + ib[idx+2] = upper_32_bits(offset) & 0xff; + + r = evergreen_cs_track_check(p); + if (r) { + dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__); + return r; + } + break; + } + case PACKET3_DRAW_INDIRECT: + case PACKET3_DRAW_INDEX_INDIRECT: + case PACKET3_DRAW_INDIRECT_MULTI: + { + /* + DW 1 HEADER + 2 DATA_OFFSET Bits [31:0] + byte aligned offset where the required data structure starts. Bits 1:0 are zero + 3 DRAW_INITIATOR Draw Initiator Register. Written to the VGT_DRAW_INITIATOR register for the assigned context + */ + if (pkt->count != 1) { + DRM_ERROR("bad DRAW_INDIRECT\n"); + return -EINVAL; + } + r = evergreen_cs_track_check(p); + if (r) { + dev_warn(p->dev, "%s:%d invalid cmd stream\n", __func__, __LINE__); + return r; + } + break; + } case PACKET3_DISPATCH_DIRECT: if (pkt->count != 3) { DRM_ERROR("bad DISPATCH_DIRECT\n"); @@ -3260,6 +3335,7 @@ static int evergreen_vm_packet3_check(struct radeon_device *rdev, case PACKET3_DRAW_INDEX_OFFSET: case PACKET3_INDEX_TYPE: case PACKET3_DRAW_INDEX: + case PACKET3_DRAW_INDIRECT_MULTI: case PACKET3_DRAW_INDEX_AUTO: case PACKET3_DRAW_INDEX_IMMD: case PACKET3_NUM_INSTANCES: diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index b066d67..5d4c5f2 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -1553,6 +1553,7 @@ #define PACKET3_DRAW_INDEX_OFFSET 0x29 #define PACKET3_INDEX_TYPE 0x2A #define PACKET3_DRAW_INDEX 0x2B +#define PACKET3_DRAW_INDIRECT_MULTI 0x2C #define PACKET3_DRAW_INDEX_AUTO 0x2D #define PACKET3_DRAW_INDEX_IMMD 0x2E #define PACKET3_NUM_INSTANCES 0x2F diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index dcffa30..fbd1f73 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -86,9 +86,10 @@ * 2.39.0 - Add INFO query for number of active CUs * 2.40.0 - Add RADEON_GEM_GTT_WC/UC, flush HDP cache before submitting * CS to GPU on >= r600 + * 2.41.0 - evergreen/cayman: Add SET_BASE/DRAW_INDIRECT command parsing support */ #define KMS_DRIVER_MAJOR 2 -#define KMS_DRIVER_MINOR 40 +#define KMS_DRIVER_MINOR 41 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); -- 1.9.1

4 6

[PATCH 1/3] drm/amd: Add get_fw_version to kfd-->kgd interface
by Oded Gabbay 15 Dec '14

15 Dec '14

This patch adds a new interface to the kfd-->kgd interface. The new interface function retrieves the firmware version that is currently in use by the MEC engine. The firmware was uploaded to the MEC engine by the kgd (radeon). v2: Added parameter of engine type to interface function Signed-off-by: Oded Gabbay <oded.gabbay(a)amd.com> --- drivers/gpu/drm/amd/include/kgd_kfd_interface.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h index 9c729dd..47b5519 100644 --- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h @@ -45,6 +45,17 @@ enum kgd_memory_pool { KGD_POOL_FRAMEBUFFER = 3, }; +enum kgd_engine_type { + KGD_ENGINE_PFP = 1, + KGD_ENGINE_ME, + KGD_ENGINE_CE, + KGD_ENGINE_MEC1, + KGD_ENGINE_MEC2, + KGD_ENGINE_RLC, + KGD_ENGINE_SDMA, + KGD_ENGINE_MAX +}; + struct kgd2kfd_shared_resources { /* Bit n == 1 means VMID n is available for KFD. */ unsigned int compute_vmid_bitmap; @@ -137,6 +148,8 @@ struct kgd2kfd_calls { * * @hqd_destroy: Destructs and preempts the queue assigned to that hqd slot. * + * @get_fw_version: Returns FW versions from the header + * * This structure contains function pointers to services that the kgd driver * provides to amdkfd driver. * @@ -176,6 +189,8 @@ struct kfd2kgd_calls { int (*hqd_destroy)(struct kgd_dev *kgd, uint32_t reset_type, unsigned int timeout, uint32_t pipe_id, uint32_t queue_id); + uint16_t (*get_fw_version)(struct kgd_dev *kgd, + enum kgd_engine_type type); }; bool kgd2kfd_init(unsigned interface_version, -- 1.9.1

2 5

[REGRESSION] i915: failure to see Dell 30" monitor connected to a Lenovo Haswell docking station
by Theodore Ts'o 15 Dec '14

15 Dec '14

I recently upgraded to v3.17-rc3, and on my Lenovo T540p, I can no longer see the my Dell 30" monitor when it is connected via the docking station using a Displayport connector. This worked using 3.16 kernel. If I connect to the monitor using the mini-display, by passing the docking station, things work fine (but of course it's annoying not to be able to use the docking station). Is this a known problem? This is not the first time that we've had regressions with this docking station. It's vaguely reminsicent of https://bugs.freedesktop.org/show_bug.cgi?id=71267 Except the system isn't hanging; it's just not seeing the monitor at all. Thanks, - Ted

2 9

[Regression] 3.18 black screen after boot (bisected)
by Heinz Diehl 15 Dec '14

15 Dec '14

Hi, since kernel 3.18 I'm no longer able to run X on my machine. While 3.17.6 is fine, 3.18 leaves me with a black screen when starting X. Booting into runlevel 1/3 is fine. I did a "git bisect", and the offending commit is this one: [root@kiera linux-git]# git bisect bad 83f45fc360c8e16a330474860ebda872d1384c8c is the first bad commit commit 83f45fc360c8e16a330474860ebda872d1384c8c Author: Daniel Vetter <daniel.vetter(a)ffwll.ch> Date: Wed Aug 6 09:10:18 2014 +0200 drm: Don't grab an fb reference for the idr [....] I double-checked, and 3.18 is fine with this commit reverted. My machine is an Asus U45JC laptop, and the CPU is an Intel i450M (Ironlake). Please contact me if I can help in any way (I'm subscribed to lkml, but not to other X or kernel related lists). Thanks, Heinz.

2 2

[PATCH] drm/sti: Fix modular build
by Mark Brown 15 Dec '14

15 Dec '14

> arm-allmodconfig > ERROR: "sti_hqvdp_create" [drivers/gpu/drm/sti/sticompositor.ko] undefined! > ERROR: "sti_drm_plane_init" [drivers/gpu/drm/sti/sti_hqvdp.ko] undefined! > ERROR: "sti_layer_create" [drivers/gpu/drm/sti/sti_hqvdp.ko] undefined! > ERROR: "sti_layer_to_str" [drivers/gpu/drm/sti/sti_hqvdp.ko] undefined! Today's ARM allmodconfig failed to build in -next due to the ST DRM drivers, they build several modules which reference each other but several of the symbols are not exported, leading to build failures. Fix this by adding the required exports. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- drivers/gpu/drm/sti/sti_drm_plane.c | 1 + drivers/gpu/drm/sti/sti_hqvdp.c | 1 + drivers/gpu/drm/sti/sti_layer.c | 2 ++ 3 files changed, 4 insertions(+) diff --git a/drivers/gpu/drm/sti/sti_drm_plane.c b/drivers/gpu/drm/sti/sti_drm_plane.c index c9dd0e57cac1..bb6a29339e10 100644 --- a/drivers/gpu/drm/sti/sti_drm_plane.c +++ b/drivers/gpu/drm/sti/sti_drm_plane.c @@ -194,3 +194,4 @@ struct drm_plane *sti_drm_plane_init(struct drm_device *dev, return &layer->plane; } +EXPORT_SYMBOL(sti_drm_plane_init); diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c index 200d02014575..f3db05dab0ab 100644 --- a/drivers/gpu/drm/sti/sti_hqvdp.c +++ b/drivers/gpu/drm/sti/sti_hqvdp.c @@ -816,6 +816,7 @@ struct sti_layer *sti_hqvdp_create(struct device *dev) return &hqvdp->layer; } +EXPORT_SYMBOL(sti_hqvdp_create); static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp) { diff --git a/drivers/gpu/drm/sti/sti_layer.c b/drivers/gpu/drm/sti/sti_layer.c index 480ec1c974e2..899104f9d4bc 100644 --- a/drivers/gpu/drm/sti/sti_layer.c +++ b/drivers/gpu/drm/sti/sti_layer.c @@ -40,6 +40,7 @@ const char *sti_layer_to_str(struct sti_layer *layer) return "<UNKNOWN LAYER>"; } } +EXPORT_SYMBOL(sti_layer_to_str); struct sti_layer *sti_layer_create(struct device *dev, int desc, void __iomem *baseaddr) @@ -77,6 +78,7 @@ struct sti_layer *sti_layer_create(struct device *dev, int desc, return layer; } +EXPORT_SYMBOL(sti_layer_create); int sti_layer_prepare(struct sti_layer *layer, struct drm_crtc *crtc, -- 2.1.3

1 0

[RFC] drm/ttm: dma: Fixes for 32-bit and 64-bit ARM
by Thierry Reding 15 Dec '14

15 Dec '14

From: Thierry Reding <treding(a)nvidia.com> dma_alloc_coherent() returns a kernel virtual address that is part of the linear range. Passing such an address to virt_to_page() is illegal on non-coherent architectures. This causes the kernel to oops on 64-bit ARM because the struct page * obtained from virt_to_page() points to unmapped memory. This commit fixes this by using phys_to_page() since we get a physical address from dma_alloc_coherent(). Note that this is not a proper fix because if an IOMMU is set up to translate addresses for the GPU this address will be an I/O virtual address rather than a physical one. The proper fix probably involves not getting a pointer to the struct page in the first place, but that would be a much more intrusive change, if at all possible. Until that time, this temporary fix will allow TTM to work on 32-bit and 64-bit ARM as well, provided that no IOMMU translations are enabled for the GPU. Signed-off-by: Thierry Reding <treding(a)nvidia.com> --- Arnd, I realize that this isn't a proper fix according to what we discussed on IRC yesterday, but I can't see a way to remove access to the pages array that would be as simple as this. I've marked this as RFC in the hope that it will trigger some discussion that will lead to a proper solution. drivers/gpu/drm/ttm/ttm_page_alloc_dma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c index c96db433f8af..d7993985752c 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c @@ -343,7 +343,11 @@ static struct dma_page *__ttm_dma_alloc_page(struct dma_pool *pool) &d_page->dma, pool->gfp_flags); if (d_page->vaddr) +#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) + d_page->p = phys_to_page(d_page->dma); +#else d_page->p = virt_to_page(d_page->vaddr); +#endif else { kfree(d_page); d_page = NULL; -- 2.1.3

5 8

i915.conf mmio_debug=1 output during resume of a ThinkPad T440s
by Toralf Förster 14 Dec '14

14 Dec '14

A resume of a ThinkPad T440s brought this probably simialr to an earlier repoeted trace): Dec 14 11:34:17 t44 kernel: [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up Dec 14 11:34:18 t44 kernel: [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up Dec 14 11:34:18 t44 kernel: [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting Dec 14 11:34:18 t44 kernel: ------------[ cut here ]------------ Dec 14 11:34:18 t44 kernel: WARNING: CPU: 3 PID: 2719 at drivers/gpu/drm/drm_dp_mst_topology.c:1242 process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper]() Dec 14 11:34:18 t44 kernel: fail Dec 14 11:34:18 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet hid_cherry hid_generic usbhid hid uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev arc4 snd_hda_codec_generic x86_pkg_temp_thermal coretemp kvm_intel evdev iTCO_wdt kvm iwlmvm aesni_intel mac80211 aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse atkbd iwlwifi cfg80211 thermal wmi i915 fbcon thinkpad_acpi cfbfillrect bitblit cfbimgblt softcursor font nvram i2c_algo_bit ac cfbcopyarea battery rfkill snd_hda_intel drm_kms_helper ehci_pci snd_hda_controller ehci_hcd tpm_tis Dec 14 11:34:18 t44 kernel: tpm drm snd_hda_codec video xhci_hcd snd_pcm intel_gtt i2c_i801 button agpgart i2c_core fb snd_timer e1000e lpc_ich processor usbcore snd ptp fbdev thermal_sys mfd_core soundcore pps_core usb_common hwmon [last unloaded: microcode] Dec 14 11:34:18 t44 kernel: CPU: 3 PID: 2719 Comm: kworker/u8:129 Not tainted 3.17.6-hardened #10 Dec 14 11:34:18 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014 Dec 14 11:34:18 t44 kernel: Workqueue: events_unbound ffffffff810770d0 Dec 14 11:34:18 t44 kernel: ffffffff818147c7 0000000000000000 0000000000000009 ffffc9002a633740 Dec 14 11:34:18 t44 kernel: ffffffff8151e6c5 ffffc9002a633788 ffffc9002a633778 ffffffff810527cd Dec 14 11:34:18 t44 kernel: ffffffffc04abd68 00000000000004da ffffffffc04ac8be 0000000000000000 Dec 14 11:34:18 t44 kernel: Call Trace: Dec 14 11:34:18 t44 kernel: [<ffffffff8151e6c5>] dump_stack+0x45/0x5c Dec 14 11:34:18 t44 kernel: [<ffffffff810527cd>] warn_slowpath_common+0x7d/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffffc04abd68>] ? paniced+0x4e8/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffff81052850>] warn_slowpath_fmt+0x60/0x80 Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a3fcf>] process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a40a1>] process_single_down_tx_qlock+0x41/0xf0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a419e>] drm_dp_queue_down_tx+0x4e/0x70 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a6a55>] drm_dp_mst_i2c_xfer+0x195/0x240 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05b0201>] ? stop_ring+0x61/0x1e0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0579be5>] ? intel_aux_display_runtime_put+0x15/0x20 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc05fd5b9>] ? gmbus_xfer+0x459/0x640 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0073303>] __i2c_transfer+0x83/0x270 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc00746b1>] i2c_transfer+0x51/0x90 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc04018c7>] drm_do_probe_ddc_edid+0xd7/0x150 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffffc04019b5>] drm_get_edid+0x35/0x2c0 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffff815235a5>] ? mutex_unlock+0x15/0x20 Dec 14 11:34:18 t44 kernel: [<ffffffffc061c6f0>] ? intel_dp_mst_enc_funcs+0x10/0x10 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a4e56>] drm_dp_mst_get_edid+0x36/0x80 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05f3d6c>] intel_dp_mst_get_modes+0x2c/0x60 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1fe2>] drm_helper_probe_single_connector_modes_merge_bits+0x212/0x410 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a220a>] drm_helper_probe_single_connector_modes+0x2a/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a8f87>] drm_fb_helper_probe_connector_modes.isra.3+0x67/0x90 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a9fee>] drm_fb_helper_hotplug_event+0x5e/0xe0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05e37d2>] intel_fbdev_output_poll_changed+0x22/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1957>] drm_kms_helper_hotplug_event+0x37/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1d80>] drm_helper_hpd_irq_event+0x100/0x150 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc056b18e>] __i915_drm_thaw+0x18e/0x1f0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc060f6a0>] ? i915_gem_vm_ops+0x40/0x40 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffffc056befb>] i915_resume+0x2b/0x50 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc056bf39>] i915_pm_resume+0x19/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b98>] pci_pm_resume+0x78/0xc0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1a35>] dpm_run_callback+0x45/0x130 Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1f00>] device_resume+0x90/0x1c0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e2050>] async_resume+0x20/0x50 Dec 14 11:34:18 t44 kernel: [<ffffffff81077116>] async_run_entry_fn+0x46/0x140 Dec 14 11:34:18 t44 kernel: [<ffffffff8106e26d>] process_one_work+0x14d/0x420 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f43d>] worker_thread+0x12d/0x4c0 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f310>] ? destroy_workqueue+0x1e0/0x1e0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074160>] kthread+0xf0/0x110 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: [<ffffffff81525d84>] ret_from_fork+0x74/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: ---[ end trace 1d00fd9e1bc99f1c ]--- Dec 14 11:34:18 t44 kernel: ------------[ cut here ]------------ Dec 14 11:34:18 t44 kernel: WARNING: CPU: 3 PID: 2719 at drivers/gpu/drm/drm_dp_mst_topology.c:1242 process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper]() Dec 14 11:34:18 t44 kernel: fail Dec 14 11:34:18 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet hid_cherry hid_generic usbhid hid uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev arc4 snd_hda_codec_generic x86_pkg_temp_thermal coretemp kvm_intel evdev iTCO_wdt kvm iwlmvm aesni_intel mac80211 aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse atkbd iwlwifi cfg80211 thermal wmi i915 fbcon thinkpad_acpi cfbfillrect bitblit cfbimgblt softcursor font nvram i2c_algo_bit ac cfbcopyarea battery rfkill snd_hda_intel drm_kms_helper ehci_pci snd_hda_controller ehci_hcd tpm_tis Dec 14 11:34:18 t44 kernel: tpm drm snd_hda_codec video xhci_hcd snd_pcm intel_gtt i2c_i801 button agpgart i2c_core fb snd_timer e1000e lpc_ich processor usbcore snd ptp fbdev thermal_sys mfd_core soundcore pps_core usb_common hwmon [last unloaded: microcode] Dec 14 11:34:18 t44 kernel: CPU: 3 PID: 2719 Comm: kworker/u8:129 Tainted: G W 3.17.6-hardened #10 Dec 14 11:34:18 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014 Dec 14 11:34:18 t44 kernel: Workqueue: events_unbound ffffffff810770d0 Dec 14 11:34:18 t44 kernel: ffffffff818147c7 0000000000000000 0000000000000009 ffffc9002a633740 Dec 14 11:34:18 t44 kernel: ffffffff8151e6c5 ffffc9002a633788 ffffc9002a633778 ffffffff810527cd Dec 14 11:34:18 t44 kernel: ffffffffc04abd68 00000000000004da ffffffffc04ac8be 0000000000000000 Dec 14 11:34:18 t44 kernel: Call Trace: Dec 14 11:34:18 t44 kernel: [<ffffffff8151e6c5>] dump_stack+0x45/0x5c Dec 14 11:34:18 t44 kernel: [<ffffffff810527cd>] warn_slowpath_common+0x7d/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffffc04abd68>] ? paniced+0x4e8/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffff81052850>] warn_slowpath_fmt+0x60/0x80 Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a3fcf>] process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a40a1>] process_single_down_tx_qlock+0x41/0xf0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a419e>] drm_dp_queue_down_tx+0x4e/0x70 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a6a55>] drm_dp_mst_i2c_xfer+0x195/0x240 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05b0201>] ? stop_ring+0x61/0x1e0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0579be5>] ? intel_aux_display_runtime_put+0x15/0x20 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc05fd5b9>] ? gmbus_xfer+0x459/0x640 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0073303>] __i2c_transfer+0x83/0x270 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc00746b1>] i2c_transfer+0x51/0x90 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc04018c7>] drm_do_probe_ddc_edid+0xd7/0x150 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffffc04019b5>] drm_get_edid+0x35/0x2c0 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffff815235a5>] ? mutex_unlock+0x15/0x20 Dec 14 11:34:18 t44 kernel: [<ffffffffc061c6f0>] ? intel_dp_mst_enc_funcs+0x10/0x10 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a4e56>] drm_dp_mst_get_edid+0x36/0x80 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05f3d6c>] intel_dp_mst_get_modes+0x2c/0x60 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1fe2>] drm_helper_probe_single_connector_modes_merge_bits+0x212/0x410 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a220a>] drm_helper_probe_single_connector_modes+0x2a/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a8f87>] drm_fb_helper_probe_connector_modes.isra.3+0x67/0x90 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a9fee>] drm_fb_helper_hotplug_event+0x5e/0xe0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05e37d2>] intel_fbdev_output_poll_changed+0x22/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1957>] drm_kms_helper_hotplug_event+0x37/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1d80>] drm_helper_hpd_irq_event+0x100/0x150 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc056b18e>] __i915_drm_thaw+0x18e/0x1f0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc060f6a0>] ? i915_gem_vm_ops+0x40/0x40 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffffc056befb>] i915_resume+0x2b/0x50 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc056bf39>] i915_pm_resume+0x19/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b98>] pci_pm_resume+0x78/0xc0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1a35>] dpm_run_callback+0x45/0x130 Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1f00>] device_resume+0x90/0x1c0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e2050>] async_resume+0x20/0x50 Dec 14 11:34:18 t44 kernel: [<ffffffff81077116>] async_run_entry_fn+0x46/0x140 Dec 14 11:34:18 t44 kernel: [<ffffffff8106e26d>] process_one_work+0x14d/0x420 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f43d>] worker_thread+0x12d/0x4c0 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f310>] ? destroy_workqueue+0x1e0/0x1e0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074160>] kthread+0xf0/0x110 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: [<ffffffff81525d84>] ret_from_fork+0x74/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: ---[ end trace 1d00fd9e1bc99f1d ]--- Dec 14 11:34:18 t44 kernel: ------------[ cut here ]------------ Dec 14 11:34:18 t44 kernel: WARNING: CPU: 3 PID: 2719 at drivers/gpu/drm/drm_dp_mst_topology.c:1242 process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper]() Dec 14 11:34:18 t44 kernel: fail Dec 14 11:34:18 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet hid_cherry hid_generic usbhid hid uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev arc4 snd_hda_codec_generic x86_pkg_temp_thermal coretemp kvm_intel evdev iTCO_wdt kvm iwlmvm aesni_intel mac80211 aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse atkbd iwlwifi cfg80211 thermal wmi i915 fbcon thinkpad_acpi cfbfillrect bitblit cfbimgblt softcursor font nvram i2c_algo_bit ac cfbcopyarea battery rfkill snd_hda_intel drm_kms_helper ehci_pci snd_hda_controller ehci_hcd tpm_tis Dec 14 11:34:18 t44 kernel: tpm drm snd_hda_codec video xhci_hcd snd_pcm intel_gtt i2c_i801 button agpgart i2c_core fb snd_timer e1000e lpc_ich processor usbcore snd ptp fbdev thermal_sys mfd_core soundcore pps_core usb_common hwmon [last unloaded: microcode] Dec 14 11:34:18 t44 kernel: CPU: 3 PID: 2719 Comm: kworker/u8:129 Tainted: G W 3.17.6-hardened #10 Dec 14 11:34:18 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014 Dec 14 11:34:18 t44 kernel: Workqueue: events_unbound ffffffff810770d0 Dec 14 11:34:18 t44 kernel: ffffffff818147c7 0000000000000000 0000000000000009 ffffc9002a633740 Dec 14 11:34:18 t44 kernel: ffffffff8151e6c5 ffffc9002a633788 ffffc9002a633778 ffffffff810527cd Dec 14 11:34:18 t44 kernel: ffffffffc04abd68 00000000000004da ffffffffc04ac8be 0000000000000000 Dec 14 11:34:18 t44 kernel: Call Trace: Dec 14 11:34:18 t44 kernel: [<ffffffff8151e6c5>] dump_stack+0x45/0x5c Dec 14 11:34:18 t44 kernel: [<ffffffff810527cd>] warn_slowpath_common+0x7d/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffffc04abd68>] ? paniced+0x4e8/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffff81052850>] warn_slowpath_fmt+0x60/0x80 Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a3fcf>] process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a40a1>] process_single_down_tx_qlock+0x41/0xf0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a419e>] drm_dp_queue_down_tx+0x4e/0x70 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a6a55>] drm_dp_mst_i2c_xfer+0x195/0x240 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05b0201>] ? stop_ring+0x61/0x1e0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0579be5>] ? intel_aux_display_runtime_put+0x15/0x20 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc05fd5b9>] ? gmbus_xfer+0x459/0x640 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0073303>] __i2c_transfer+0x83/0x270 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc00746b1>] i2c_transfer+0x51/0x90 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc04018c7>] drm_do_probe_ddc_edid+0xd7/0x150 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffffc04019b5>] drm_get_edid+0x35/0x2c0 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffff815235a5>] ? mutex_unlock+0x15/0x20 Dec 14 11:34:18 t44 kernel: [<ffffffffc061c6f0>] ? intel_dp_mst_enc_funcs+0x10/0x10 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a4e56>] drm_dp_mst_get_edid+0x36/0x80 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05f3d6c>] intel_dp_mst_get_modes+0x2c/0x60 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1fe2>] drm_helper_probe_single_connector_modes_merge_bits+0x212/0x410 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a220a>] drm_helper_probe_single_connector_modes+0x2a/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a8f87>] drm_fb_helper_probe_connector_modes.isra.3+0x67/0x90 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a9fee>] drm_fb_helper_hotplug_event+0x5e/0xe0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05e37d2>] intel_fbdev_output_poll_changed+0x22/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1957>] drm_kms_helper_hotplug_event+0x37/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1d80>] drm_helper_hpd_irq_event+0x100/0x150 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc056b18e>] __i915_drm_thaw+0x18e/0x1f0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc060f6a0>] ? i915_gem_vm_ops+0x40/0x40 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffffc056befb>] i915_resume+0x2b/0x50 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc056bf39>] i915_pm_resume+0x19/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b98>] pci_pm_resume+0x78/0xc0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1a35>] dpm_run_callback+0x45/0x130 Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1f00>] device_resume+0x90/0x1c0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e2050>] async_resume+0x20/0x50 Dec 14 11:34:18 t44 kernel: [<ffffffff81077116>] async_run_entry_fn+0x46/0x140 Dec 14 11:34:18 t44 kernel: [<ffffffff8106e26d>] process_one_work+0x14d/0x420 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f43d>] worker_thread+0x12d/0x4c0 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f310>] ? destroy_workqueue+0x1e0/0x1e0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074160>] kthread+0xf0/0x110 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: [<ffffffff81525d84>] ret_from_fork+0x74/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: ---[ end trace 1d00fd9e1bc99f1e ]--- Dec 14 11:34:18 t44 kernel: ------------[ cut here ]------------ Dec 14 11:34:18 t44 kernel: WARNING: CPU: 3 PID: 2719 at drivers/gpu/drm/drm_dp_mst_topology.c:1242 process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper]() Dec 14 11:34:18 t44 kernel: fail Dec 14 11:34:18 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet hid_cherry hid_generic usbhid hid uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev arc4 snd_hda_codec_generic x86_pkg_temp_thermal coretemp kvm_intel evdev iTCO_wdt kvm iwlmvm aesni_intel mac80211 aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse atkbd iwlwifi cfg80211 thermal wmi i915 fbcon thinkpad_acpi cfbfillrect bitblit cfbimgblt softcursor font nvram i2c_algo_bit ac cfbcopyarea battery rfkill snd_hda_intel drm_kms_helper ehci_pci snd_hda_controller ehci_hcd tpm_tis Dec 14 11:34:18 t44 kernel: tpm drm snd_hda_codec video xhci_hcd snd_pcm intel_gtt i2c_i801 button agpgart i2c_core fb snd_timer e1000e lpc_ich processor usbcore snd ptp fbdev thermal_sys mfd_core soundcore pps_core usb_common hwmon [last unloaded: microcode] Dec 14 11:34:18 t44 kernel: CPU: 3 PID: 2719 Comm: kworker/u8:129 Tainted: G W 3.17.6-hardened #10 Dec 14 11:34:18 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014 Dec 14 11:34:18 t44 kernel: Workqueue: events_unbound ffffffff810770d0 Dec 14 11:34:18 t44 kernel: ffffffff818147c7 0000000000000000 0000000000000009 ffffc9002a633740 Dec 14 11:34:18 t44 kernel: ffffffff8151e6c5 ffffc9002a633788 ffffc9002a633778 ffffffff810527cd Dec 14 11:34:18 t44 kernel: ffffffffc04abd68 00000000000004da ffffffffc04ac8be 0000000000000000 Dec 14 11:34:18 t44 kernel: Call Trace: Dec 14 11:34:18 t44 kernel: [<ffffffff8151e6c5>] dump_stack+0x45/0x5c Dec 14 11:34:18 t44 kernel: [<ffffffff810527cd>] warn_slowpath_common+0x7d/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffffc04abd68>] ? paniced+0x4e8/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffff81052850>] warn_slowpath_fmt+0x60/0x80 Dec 14 11:34:18 t44 kernel: [<ffffffffc04ac8be>] ? paniced+0x103e/0x14a5 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a3fcf>] process_single_tx_qlock+0x4cf/0x560 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a40a1>] process_single_down_tx_qlock+0x41/0xf0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a419e>] drm_dp_queue_down_tx+0x4e/0x70 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a6a55>] drm_dp_mst_i2c_xfer+0x195/0x240 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05b0201>] ? stop_ring+0x61/0x1e0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0579be5>] ? intel_aux_display_runtime_put+0x15/0x20 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc05fd5b9>] ? gmbus_xfer+0x459/0x640 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc0073303>] __i2c_transfer+0x83/0x270 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc00746b1>] i2c_transfer+0x51/0x90 [i2c_core] Dec 14 11:34:18 t44 kernel: [<ffffffffc04018c7>] drm_do_probe_ddc_edid+0xd7/0x150 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffffc04019b5>] drm_get_edid+0x35/0x2c0 [drm] Dec 14 11:34:18 t44 kernel: [<ffffffff815235a5>] ? mutex_unlock+0x15/0x20 Dec 14 11:34:18 t44 kernel: [<ffffffffc061c6f0>] ? intel_dp_mst_enc_funcs+0x10/0x10 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a4e56>] drm_dp_mst_get_edid+0x36/0x80 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05f3d6c>] intel_dp_mst_get_modes+0x2c/0x60 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1fe2>] drm_helper_probe_single_connector_modes_merge_bits+0x212/0x410 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a220a>] drm_helper_probe_single_connector_modes+0x2a/0x40 [drm_kms_helper] Dec 14 11:34:55 t44 wpa_cli[2739]: interface wlp3s0 DISCONNECTED Dec 14 11:34:18 t44 kernel: [<ffffffffc04a8f87>] drm_fb_helper_probe_connector_modes.isra.3+0x67/0x90 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a9fee>] drm_fb_helper_hotplug_event+0x5e/0xe0 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc05e37d2>] intel_fbdev_output_poll_changed+0x22/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1957>] drm_kms_helper_hotplug_event+0x37/0x40 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc04a1d80>] drm_helper_hpd_irq_event+0x100/0x150 [drm_kms_helper] Dec 14 11:34:18 t44 kernel: [<ffffffffc056b18e>] __i915_drm_thaw+0x18e/0x1f0 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc060f6a0>] ? i915_gem_vm_ops+0x40/0x40 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffffc056befb>] i915_resume+0x2b/0x50 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffffc056bf39>] i915_pm_resume+0x19/0x30 [i915] Dec 14 11:34:18 t44 kernel: [<ffffffff81353b98>] pci_pm_resume+0x78/0xc0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1a35>] dpm_run_callback+0x45/0x130 Dec 14 11:34:18 t44 kernel: [<ffffffff81353b20>] ? pci_pm_default_resume+0x40/0x40 Dec 14 11:34:18 t44 kernel: [<ffffffff813e1f00>] device_resume+0x90/0x1c0 Dec 14 11:34:18 t44 kernel: [<ffffffff813e2050>] async_resume+0x20/0x50 Dec 14 11:34:18 t44 kernel: [<ffffffff81077116>] async_run_entry_fn+0x46/0x140 Dec 14 11:34:18 t44 kernel: [<ffffffff8106e26d>] process_one_work+0x14d/0x420 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f43d>] worker_thread+0x12d/0x4c0 Dec 14 11:34:18 t44 kernel: [<ffffffff8106f310>] ? destroy_workqueue+0x1e0/0x1e0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074160>] kthread+0xf0/0x110 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: [<ffffffff81525d84>] ret_from_fork+0x74/0xa0 Dec 14 11:34:18 t44 kernel: [<ffffffff81074070>] ? kthread_create_on_node+0x190/0x190 Dec 14 11:34:18 t44 kernel: ---[ end trace 1d00fd9e1bc99f1f ]--- Dec 14 11:34:18 t44 kernel: ------------[ cut here ]------------ -- Toralf pgp key: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 0076 E94E

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dri-devel December 2014