kernel/linux.git/drivers/gpu/drm/amd/display/amdgpu_dm, branch v5.4.26

drm/amd/dm/mst: Ignore payload update failures

2020-02-11T12:35:43+00:00

commit 58fe03d6dec908a1bec07eea7e94907af5c07eec upstream. Disabling a display on MST can potentially happen after the entire MST topology has been removed, which means that we can't communicate with the topology at all in this scenario. Likewise, this also means that we can't properly update payloads on the topology and as such, it's a good idea to ignore payload update failures when disabling displays. Currently, amdgpu makes the mistake of halting the payload update process when any payload update failures occur, resulting in leaving DC's local copies of the payload tables out of date. This ends up causing problems with hotplugging MST topologies, and causes modesets on the second hotplug to fail like so: [drm] Failed to updateMST allocation table forpipe idx:1 ------------[ cut here ]------------ WARNING: CPU: 5 PID: 1511 at drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:2677 update_mst_stream_alloc_table+0x11e/0x130 [amdgpu] Modules linked in: cdc_ether usbnet fuse xt_conntrack nf_conntrack nf_defrag_ipv6 libcrc32c nf_defrag_ipv4 ipt_REJECT nf_reject_ipv4 nft_counter nft_compat nf_tables nfnetlink tun bridge stp llc sunrpc vfat fat wmi_bmof uvcvideo snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi videobuf2_vmalloc snd_hda_intel videobuf2_memops videobuf2_v4l2 snd_intel_dspcfg videobuf2_common crct10dif_pclmul snd_hda_codec videodev crc32_pclmul snd_hwdep snd_hda_core ghash_clmulni_intel snd_seq mc joydev pcspkr snd_seq_device snd_pcm sp5100_tco k10temp i2c_piix4 snd_timer thinkpad_acpi ledtrig_audio snd wmi soundcore video i2c_scmi acpi_cpufreq ip_tables amdgpu(O) rtsx_pci_sdmmc amd_iommu_v2 gpu_sched mmc_core i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec drm crc32c_intel serio_raw hid_multitouch r8152 mii nvme r8169 nvme_core rtsx_pci pinctrl_amd CPU: 5 PID: 1511 Comm: gnome-shell Tainted: G O 5.5.0-rc7Lyude-Test+ #4 Hardware name: LENOVO FA495SIT26/FA495SIT26, BIOS R12ET22W(0.22 ) 01/31/2019 RIP: 0010:update_mst_stream_alloc_table+0x11e/0x130 [amdgpu] Code: 28 00 00 00 75 2b 48 8d 65 e0 5b 41 5c 41 5d 41 5e 5d c3 0f b6 06 49 89 1c 24 41 88 44 24 08 0f b6 46 01 41 88 44 24 09 eb 93 <0f> 0b e9 2f ff ff ff e8 a6 82 a3 c2 66 0f 1f 44 00 00 0f 1f 44 00 RSP: 0018:ffffac428127f5b0 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff8d1e166eee80 RCX: 0000000000000000 RDX: ffffac428127f668 RSI: ffff8d1e166eee80 RDI: ffffac428127f610 RBP: ffffac428127f640 R08: ffffffffc03d94a8 R09: 0000000000000000 R10: ffff8d1e24b02000 R11: ffffac428127f5b0 R12: ffff8d1e1b83d000 R13: ffff8d1e1bea0b08 R14: 0000000000000002 R15: 0000000000000002 FS: 00007fab23ffcd80(0000) GS:ffff8d1e28b40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f151f1711e8 CR3: 00000005997c0000 CR4: 00000000003406e0 Call Trace: ? mutex_lock+0xe/0x30 dc_link_allocate_mst_payload+0x9a/0x210 [amdgpu] ? dm_read_reg_func+0x39/0xb0 [amdgpu] ? core_link_enable_stream+0x656/0x730 [amdgpu] core_link_enable_stream+0x656/0x730 [amdgpu] dce110_apply_ctx_to_hw+0x58e/0x5d0 [amdgpu] ? dcn10_verify_allow_pstate_change_high+0x1d/0x280 [amdgpu] ? dcn10_wait_for_mpcc_disconnect+0x3c/0x130 [amdgpu] dc_commit_state+0x292/0x770 [amdgpu] ? add_timer+0x101/0x1f0 ? ttm_bo_put+0x1a1/0x2f0 [ttm] amdgpu_dm_atomic_commit_tail+0xb59/0x1ff0 [amdgpu] ? amdgpu_move_blit.constprop.0+0xb8/0x1f0 [amdgpu] ? amdgpu_bo_move+0x16d/0x2b0 [amdgpu] ? ttm_bo_handle_move_mem+0x118/0x570 [ttm] ? ttm_bo_validate+0x134/0x150 [ttm] ? dm_plane_helper_prepare_fb+0x1b9/0x2a0 [amdgpu] ? _cond_resched+0x15/0x30 ? wait_for_completion_timeout+0x38/0x160 ? _cond_resched+0x15/0x30 ? wait_for_completion_interruptible+0x33/0x190 commit_tail+0x94/0x130 [drm_kms_helper] drm_atomic_helper_commit+0x113/0x140 [drm_kms_helper] drm_atomic_helper_set_config+0x70/0xb0 [drm_kms_helper] drm_mode_setcrtc+0x194/0x6a0 [drm] ? _cond_resched+0x15/0x30 ? mutex_lock+0xe/0x30 ? drm_mode_getcrtc+0x180/0x180 [drm] drm_ioctl_kernel+0xaa/0xf0 [drm] drm_ioctl+0x208/0x390 [drm] ? drm_mode_getcrtc+0x180/0x180 [drm] amdgpu_drm_ioctl+0x49/0x80 [amdgpu] do_vfs_ioctl+0x458/0x6d0 ksys_ioctl+0x5e/0x90 __x64_sys_ioctl+0x16/0x20 do_syscall_64+0x55/0x1b0 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fab2121f87b Code: 0f 1e fa 48 8b 05 0d 96 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d dd 95 2c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffd045f9068 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffd045f90a0 RCX: 00007fab2121f87b RDX: 00007ffd045f90a0 RSI: 00000000c06864a2 RDI: 000000000000000b RBP: 00007ffd045f90a0 R08: 0000000000000000 R09: 000055dbd2985d10 R10: 000055dbd2196280 R11: 0000000000000246 R12: 00000000c06864a2 R13: 000000000000000b R14: 0000000000000000 R15: 000055dbd2196280 ---[ end trace 6ea888c24d2059cd ]--- Note as well, I have only been able to reproduce this on setups with 2 MST displays. Changes since v1: * Don't return false when part 1 or part 2 of updating the payloads fails, we don't want to abort at any step of the process even if things fail Reviewed-by: Mikita Lipski Signed-off-by: Lyude Paul Acked-by: Harry Wentland Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded

2020-02-01T09:34:45+00:00

[ Upstream commit 840c90fce6c78bc6b2c4cb9e836d70985ed32066 ] For high-res (8K) or HFR (4K120) displays, using uncompressed pixel formats like YCbCr444 would exceed the bandwidth of HDMI 2.0, so the "interesting" modes would be disabled, leaving only low-res or low framerate modes. This change lowers the pixel encoding to 4:2:2 or 4:2:0 if the max TMDS clock is exceeded. Verified that 8K30 and 4K120 are now available and working with a Samsung Q900R over an HDMI 2.0b link from a Radeon 5700. Reviewed-by: Harry Wentland Signed-off-by: Thomas Anderson Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: set minimum abm backlight level

2019-12-31T15:43:34+00:00

[ Upstream commit 2ad0cdf9e2e9e079af34af681863fa638f2ee212 ] [Why] A lot of the time, the backlight characteristic curve maps min backlight to a non-zero value. But there are cases where we want the curve to intersect at 0. In this scenario even if OS never asks to set 0% backlight, the ABM reduction can result in backlight being lowered close to 0. This particularly can cause problems in some LED drivers, and in general just looks like backlight is completely off. [How] Add default cap to disallow backlight from dropping below 1% even after ABM reduction is applied. Signed-off-by: Anthony Koo Reviewed-by: Aric Cyr Acked-by: Leo Li Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: add default clocks if not able to fetch them

2019-12-21T10:05:16+00:00

commit 946621691f9919c263b4679b77f81f06019d3636 upstream. dm_pp_get_clock_levels_by_type needs to add the default clocks to the powerplay case as well. This was accidently dropped. Fixes: b3ea88fef321de ("drm/amd/powerplay: add get_clock_by_type interface for display") Bug: https://gitlab.freedesktop.org/drm/amd/issues/906 Reviewed-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

Revert "drm/amd/display: enable S/G for RAVEN chip"

2019-11-20T23:40:21+00:00

This reverts commit 1c4259159132ae4ceaf7c6db37a6cf76417f73d9. S/G display is not stable with the IOMMU enabled on some platforms. Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205523 Acked-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amd/display: hide an unused variable

2019-10-02T17:58:33+00:00

Without CONFIG_DEBUG_FS, we get a warning for an unused variable: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6020:33: error: unused variable 'source' [-Werror,-Wunused-variable] Hide the variable in an #ifdef like its only users. Fixes: 14b2584636c6 ("drm/amd/display: add functionality to grab DPRX CRC entries.") Reviewed-by: Harry Wentland Signed-off-by: Arnd Bergmann Signed-off-by: Alex Deucher

Revert "drm/amdgpu: disable stutter mode for renoir"

2019-10-02T17:53:07+00:00

This reverts commit 5813f97a5969bf1e7e723397a74e00b5de7278d6. Since SBIOS WCD9925N, NMI printing disappeared. Hence enable stutter mode. Signed-off-by: Aaron Liu Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

Merge tag 'drm-fixes-5.4-2019-09-25' of git://people.freedesktop.org/~agd5f/linux into drm-next

2019-09-26T01:59:40+00:00

drm-fixes-5.4-2019-09-25: amdgpu: - Fix a 64 bit divide - Prevent a memory leak in a failure case in dc - Load proper gfx firmware on navi14 variants drm-fixes-5.4-2019-09-19: amdgpu: - Add more navi12 and navi14 PCI ids - Misc fixes for renoir - Fix bandwidth issues with multiple displays on vega20 - Support for Dali - Fix a possible oops with KFD on hawaii - Fix for backlight level after resume on some APUs - Other misc fixes Signed-off-by: Dave Airlie From: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20190925213500.3490-1-alexander.deucher@amd.com

Merge tag 'drm-misc-next-fixes-2019-09-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2019-09-25T22:48:23+00:00

- Multiple panfrost fixes for regulator support and page fault handling - Some cleanups and fixes in the self-refresh helpers - Some cleanups and fixes in the atomic helpers Signed-off-by: Dave Airlie From: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20190923160946.nvaqiw5j7fpcdhc7@gilmour

drm/atomic: Rename crtc_state->pageflip_flags to async_flip

2019-09-18T16:43:36+00:00

It's the only flag anyone actually cares about. Plus if we're unlucky, the atomic ioctl might need a different flag for async flips. So better to abstract this away from the uapi a bit. Reviewed-by: Maarten Lankhorst Reviewed-by: Nicholas Kazlauskas Cc: Maarten Lankhorst Cc: Michel Dänzer Cc: Alex Deucher Cc: Adam Jackson Cc: Sean Paul Cc: David Airlie Signed-off-by: Daniel Vetter Cc: Maxime Ripard Cc: Daniel Vetter Cc: Nicholas Kazlauskas Cc: Leo Li Cc: Harry Wentland Cc: David Francis Cc: Mario Kleiner Cc: Bhawanpreet Lakha Cc: Ben Skeggs Cc: "Christian König" Cc: Ilia Mirkin Cc: Sam Ravnborg Cc: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20190903190642.32588-3-daniel.vetter@ffwll.ch