[Intel-gfx] [PATCH] drm/i915/mst: Check uapi enable not intel one during mst atomic check
José Roberto de Souza
jose.souza at intel.com
Fri Nov 15 20:04:30 UTC 2019
When the connector has VCPI allocated and is being moved to another
pipe it causes drm_dp_atomic_release_vcpi_slots() and
drm_dp_atomic_find_vcpi_slots() to be called in the same atomic check
causing the error bellow.
This happens because at this point Intel's hw.enable(and all other
flags in the same struct) is not set but checking to on the uapi one
it have the expected value.
[ 580.804430] ------------[ cut here ]------------
[ 580.804436] WARNING: CPU: 0 PID: 1221 at drivers/gpu/drm/drm_dp_mst_topology.c:4094 drm_dp_atomic_find_vcpi_slots+0x157/0x180
[ 580.804439] Modules linked in: cdc_ether r8152 i915 prime_numbers snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep asix snd_hda_core x86_pkg_temp_thermal usbnet mei_hdcp coretemp mii mei_me crct10dif_pclmul snd_pcm crc32_pclmul mei ghash_clmulni_intel i2c_i801 [last unloaded: prime_numbers]
[ 580.804462] CPU: 0 PID: 1221 Comm: kworker/0:0 Tainted: G W 5.4.0-rc7-zeh+ #1226
[ 580.804465] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.D00.2321.A09.1909250226 09/25/2019
[ 580.804470] Workqueue: events output_poll_execute
[ 580.804476] RIP: 0010:drm_dp_atomic_find_vcpi_slots+0x157/0x180
[ 580.804481] Code: 6a ff ff ff 49 89 6d 08 4c 89 6b 10 4c 89 63 18 49 89 6e 08 e9 55 ff ff ff 41 89 c7 5b 5d 44 89 f8 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 c7 c7 08 73 11 82 48 89 ee 41 bf ea ff ff ff e8 b2 e3 02
[ 580.804484] RSP: 0018:ffffc900009b7ab8 EFLAGS: 00010246
[ 580.804488] RAX: ffff88848c04ef50 RBX: ffff88848c04ef40 RCX: 0000000000000214
[ 580.804492] RDX: ffff88848c04f5e0 RSI: ffff888486eb2c68 RDI: ffff88848e518800
[ 580.804495] RBP: ffff88849d339000 R08: 00000000bc4e1092 R09: 0000000000000000
[ 580.804498] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88848c04e728
[ 580.804501] R13: 0000000000000214 R14: ffff88848c04e720 R15: ffff888486eb2c68
[ 580.804504] FS: 0000000000000000(0000) GS:ffff8884a0000000(0000) knlGS:0000000000000000
[ 580.804507] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 580.804510] CR2: 00007ff6bf1ba680 CR3: 0000000005210003 CR4: 0000000000760ef0
[ 580.804512] PKRU: 55555554
[ 580.804515] Call Trace:
[ 580.804574] intel_dp_mst_compute_config+0x193/0x2b0 [i915]
[ 580.804636] intel_atomic_check+0x10cc/0x20b0 [i915]
[ 580.804644] ? drm_atomic_print_old_state+0xf1/0x130
[ 580.804655] drm_atomic_check_only+0x56a/0x810
[ 580.804663] drm_atomic_commit+0xe/0x50
[ 580.804668] drm_client_modeset_commit_atomic+0x18b/0x220
[ 580.804680] drm_client_modeset_commit_force+0x4d/0x180
[ 580.804685] drm_fb_helper_restore_fbdev_mode_unlocked+0x46/0xa0
[ 580.804689] drm_fb_helper_set_par+0x27/0x50
[ 580.804692] drm_fb_helper_hotplug_event.part.0+0xa7/0xc0
[ 580.804696] drm_kms_helper_hotplug_event+0x21/0x30
[ 580.804699] output_poll_execute+0x1a4/0x1c0
[ 580.804706] process_one_work+0x25b/0x5b0
[ 580.804713] worker_thread+0x4b/0x3b0
[ 580.804720] kthread+0x100/0x140
[ 580.804723] ? process_one_work+0x5b0/0x5b0
[ 580.804725] ? kthread_park+0x80/0x80
[ 580.804730] ret_from_fork+0x24/0x50
[ 580.804740] irq event stamp: 40988
[ 580.804743] hardirqs last enabled at (40987): [<ffffffff81128567>] console_unlock+0x437/0x590
[ 580.804746] hardirqs last disabled at (40988): [<ffffffff81001cfa>] trace_hardirqs_off_thunk+0x1a/0x20
[ 580.804749] softirqs last enabled at (40972): [<ffffffff81c00389>] __do_softirq+0x389/0x47f
[ 580.804752] softirqs last disabled at (40959): [<ffffffff810b6f19>] irq_exit+0xa9/0xc0
[ 580.804754] ---[ end trace 80052e0c60463c67 ]---
[ 580.804758] [drm:drm_dp_atomic_find_vcpi_slots] *ERROR* cannot allocate and release VCPI on [MST PORT:000000007880692e] in the same state
[ 580.811370] [drm:intel_dp_hpd_pulse [i915]] got esi2 02 00 00
[ 580.817239] [drm:intel_dp_hpd_pulse [i915]] got esi 02 00 00
[ 580.817313] ------------[ cut here ]------------
[ 580.817318] WARNING: CPU: 0 PID: 1221 at drivers/gpu/drm/drm_dp_mst_topology.c:4094 drm_dp_atomic_find_vcpi_slots+0x157/0x180
[ 580.817321] Modules linked in: cdc_ether r8152 i915 prime_numbers snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep asix snd_hda_core x86_pkg_temp_thermal
[ 580.817412] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on [ENCODER:306:DDI E] - short
[ 580.817413] usbnet mei_hdcp coretemp mii mei_me crct10dif_pclmul snd_pcm crc32_pclmul
[ 580.817490] [drm:intel_dp_hpd_pulse [i915]] is_mst
[ 580.817491] mei ghash_clmulni_intel i2c_i801 [last unloaded: prime_numbers]
[ 580.817498] CPU: 0 PID: 1221 Comm: kworker/0:0 Tainted: G W 5.4.0-rc7-zeh+ #1226
[ 580.817503] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.D00.2321.A09.1909250226 09/25/2019
[ 580.817506] Workqueue: events output_poll_execute
[ 580.817511] RIP: 0010:drm_dp_atomic_find_vcpi_slots+0x157/0x180
[ 580.817514] Code: 6a ff ff ff 49 89 6d 08 4c 89 6b 10 4c 89 63 18 49 89 6e 08 e9 55 ff ff ff 41 89 c7 5b 5d 44 89 f8 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 c7 c7 08 73 11 82 48 89 ee 41 bf ea ff ff ff e8 b2 e3 02
[ 580.817516] RSP: 0018:ffffc900009b7ab8 EFLAGS: 00010246
[ 580.817519] RAX: ffff88848c04ef50 RBX: ffff88848c04ef40 RCX: 000000000000018f
[ 580.817521] RDX: ffff88848c04f5e0 RSI: ffff888486eb2c68 RDI: ffff88848e518800
[ 580.817523] RBP: ffff88849d339000 R08: 00000000bc4e1092 R09: 0000000000000000
[ 580.817525] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88848c04e728
[ 580.817528] R13: 000000000000018f R14: ffff88848c04e720 R15: ffff888486eb2c68
[ 580.817532] FS: 0000000000000000(0000) GS:ffff8884a0000000(0000) knlGS:0000000000000000
[ 580.817534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 580.817535] CR2: 00007ff6bf1ba680 CR3: 0000000005210003 CR4: 0000000000760ef0
[ 580.817537] PKRU: 55555554
[ 580.817538] Call Trace:
[ 580.817620] intel_dp_mst_compute_config+0x193/0x2b0 [i915]
[ 580.817690] intel_atomic_check+0x10cc/0x20b0 [i915]
[ 580.817697] ? drm_atomic_print_old_state+0xf1/0x130
[ 580.817711] drm_atomic_check_only+0x56a/0x810
[ 580.817721] drm_atomic_commit+0xe/0x50
[ 580.817726] drm_client_modeset_commit_atomic+0x18b/0x220
[ 580.817744] drm_client_modeset_commit_force+0x4d/0x180
[ 580.817751] drm_fb_helper_restore_fbdev_mode_unlocked+0x46/0xa0
[ 580.817756] drm_fb_helper_set_par+0x27/0x50
[ 580.817762] drm_fb_helper_hotplug_event.part.0+0xa7/0xc0
[ 580.817767] drm_kms_helper_hotplug_event+0x21/0x30
[ 580.817771] output_poll_execute+0x1a4/0x1c0
[ 580.817780] process_one_work+0x25b/0x5b0
[ 580.817791] worker_thread+0x4b/0x3b0
[ 580.817800] kthread+0x100/0x140
[ 580.817804] ? process_one_work+0x5b0/0x5b0
[ 580.817807] ? kthread_park+0x80/0x80
[ 580.817813] ret_from_fork+0x24/0x50
[ 580.817832] irq event stamp: 41028
[ 580.817838] hardirqs last enabled at (41027): [<ffffffff81128567>] console_unlock+0x437/0x590
[ 580.817841] hardirqs last disabled at (41028): [<ffffffff81001cfa>] trace_hardirqs_off_thunk+0x1a/0x20
[ 580.817846] softirqs last enabled at (41022): [<ffffffff81c00389>] __do_softirq+0x389/0x47f
[ 580.817851] softirqs last disabled at (41013): [<ffffffff810b6f19>] irq_exit+0xa9/0xc0
[ 580.817854] ---[ end trace 80052e0c60463c68 ]---
[ 580.817858] [drm:drm_dp_atomic_find_vcpi_slots] *ERROR* cannot allocate and release VCPI on [MST PORT:000000007880692e] in the same state
[ 580.830767] [drm:intel_dp_mst_compute_config [i915]] failed finding vcpi slots:-22
[ 580.830821] [drm:intel_atomic_check [i915]] Encoder config failure: -22
Cc: Lyude Paul <lyude at redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 9fc606c6dbee..f8a350359346 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -191,7 +191,7 @@ intel_dp_mst_atomic_check(struct drm_connector *connector,
if (!crtc_state ||
!drm_atomic_crtc_needs_modeset(&crtc_state->uapi) ||
- crtc_state->hw.enable)
+ crtc_state->uapi.enable)
return 0;
}
--
2.24.0
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