1. 06 Jan, 2021 4 commits
    • Kevin Wang's avatar
      drm/amd/display: fix sysfs amdgpu_current_backlight_pwm NULL pointer issue · a7b5d9dd
      Kevin Wang authored
      fix NULL pointer issue when read sysfs amdgpu_current_backlight_pwm sysfs node.
      
      Call Trace:
      [  248.273833] BUG: kernel NULL pointer dereference, address: 0000000000000130
      [  248.273930] #PF: supervisor read access in kernel mode
      [  248.273993] #PF: error_code(0x0000) - not-present page
      [  248.274054] PGD 0 P4D 0
      [  248.274092] Oops: 0000 [#1] SMP PTI
      [  248.274138] CPU: 2 PID: 1377 Comm: cat Tainted: G           OE     5.9.0-rc5-drm-next-5.9+ #1
      [  248.274233] Hardware name: System manufacturer System Product Name/Z170-A, BIOS 3802 03/15/2018
      [  248.274641] RIP: 0010:dc_link_get_backlight_level+0x5/0x70 [amdgpu]
      [  248.274718] Code: 67 ff ff ff 41 b9 03 00 00 00 e9 45 ff ff ff d1 ea e9 55 ff ff ff 0f 1f 44 00 00 66 2e
      0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <48> 8b 87 30 01 00 00 48 8b 00 48 8b 88 88 03 00 00 48 8d 81 e8 01
      [  248.274919] RSP: 0018:ffffb5ad809b3df0 EFLAGS: 00010203
      [  248.274982] RAX: ffffa0f77d1c0010 RBX: ffffa0f793ae9168 RCX: 0000000000000001
      [  248.275064] RDX: ffffa0f79753db00 RSI: 0000000000000001 RDI: 0000000000000000
      [  248.275145] RBP: ffffb5ad809b3e00 R08: ffffb5ad809b3da0 R09: 0000000000000000
      [  248.275225] R10: ffffb5ad809b3e68 R11: 0000000000000000 R12: ffffa0f793ae9190
      [  248.275306] R13: ffffb5ad809b3ef0 R14: 0000000000000001 R15: ffffa0f793ae9168
      [  248.275388] FS:  00007f5f1ec4d540(0000) GS:ffffa0f79ec80000(0000) knlGS:0000000000000000
      [  248.275480] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [  248.275547] CR2: 0000000000000130 CR3: 000000042a03c005 CR4: 00000000003706e0
      [  248.275628] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      [  248.275708] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      [  248.275789] Call Trace:
      [  248.276124]  ? current_backlight_read+0x24/0x40 [amdgpu]
      [  248.276194]  seq_read+0xc3/0x3f0
      [  248.276240]  full_proxy_read+0x5c/0x90
      [  248.276290]  vfs_read+0xa7/0x190
      [  248.276334]  ksys_read+0xa7/0xe0
      [  248.276379]  __x64_sys_read+0x1a/0x20
      [  248.276429]  do_syscall_64+0x37/0x80
      [  248.276477]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
      [  248.276538] RIP: 0033:0x7f5f1e75c191
      [  248.276585] Code: fe ff ff 48 8d 3d b7 9d 0a 00 48 83 ec 08 e8 46 4d 02 00 66 0f 1f 44 00 00 48 8d 05 71 07
      2e 00 8b 00 85 c0 75 13 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 57 f3 c3 0f 1f 44 00 00 41 54 55 49 89 d4 53Hw
      [  248.276784] RSP: 002b:00007ffcb1fc3f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
      [  248.276872] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f5f1e75c191
      [  248.276953] RDX: 0000000000020000 RSI: 00007f5f1ec2b000 RDI: 0000000000000003
      [  248.277034] RBP: 0000000000020000 R08: 00000000ffffffff R09: 0000000000000000
      [  248.277115] R10: 0000000000000022 R11: 0000000000000246 R12: 00007f5f1ec2b000
      [  248.277195] R13: 0000000000000003 R14: 00007f5f1ec2b00f R15: 0000000000020000
      [  248.277279] Modules linked in: amdgpu(OE) iommu_v2 gpu_sched ttm(OE) drm_kms_helper cec drm
      i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs
      lockd grace fscache nls_iso8859_1 snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic
      ledtrig_audio intel_rapl_msr intel_rapl_common snd_hda_intel snd_intel_dspcfg x86_pkg_temp_thermal
      intel_powerclamp snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event mei_hdcp
      coretemp snd_rawmidi snd_seq kvm_intel kvm snd_seq_device snd_timer irqbypass joydev snd input_leds soundcore
      crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd glue_helper rapl intel_cstate
      mac_hid mei_me serio_raw mei eeepc_wmi wmi_bmof asus_wmi mxm_wmi intel_wmi_thunderbolt acpi_pad sparse_keymap
      efi_pstore sch_fq_codel parport_pc ppdev lp parport sunrpc ip_tables x_tables autofs4 hid_logitech_hidpp
      hid_logitech_dj hid_generic usbhid hid e1000e psmouse ahci libahci wmi video
      [  248.278211] CR2: 0000000000000130
      [  248.278221] ---[ end trace 1fbe72fe6f91091d ]---
      [  248.357226] RIP: 0010:dc_link_get_backlight_level+0x5/0x70 [amdgpu]
      [  248.357272] Code: 67 ff ff ff 41 b9 03 00 00 00 e9 45 ff ff ff d1 ea e9 55 ff ff ff 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <48> 8b 87 30 01 00 00 48 8b 00 48 8b 88 88 03 00 00 48 8d 81 e8 01
      Signed-off-by: default avatarKevin Wang <kevin1.wang@amd.com>
      Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      a7b5d9dd
    • John Clements's avatar
      drm/amd/pm: updated PM to I2C controller port on sienna cichlid · fc996f95
      John Clements authored
      sienna cichlid interfaces with RAS eeprom on I2C controller port 1
      Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
      Signed-off-by: default avatarJohn Clements <john.clements@amd.com>
      Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      fc996f95
    • Xiaojian Du's avatar
      drm/amd/pm: improve the fine grain tuning function for RV/RV2/PCO · 37030aba
      Xiaojian Du authored
      This patch is to improve the fine grain tuning function for RV/RV2/PCO.
      This patch adds two new commands: "restore" and "commit".
      This function uses the pp_od_clk_voltage sysfs file to configure the min
      and max value of gfx clock frequency manually or restore the default value.
      
      Command guide:
      echo "s level value" > pp_od_clk_voltage
              "s" - set the sclk frequency
              "level" - 0 or 1, "0" represents the min value,  "1" represents
              the max value
              "value" - the target value of sclk frequency, it should be limited in the
              safe range
      echo "r" > pp_od_clk_voltage
              "r" - reset the sclk frequency, restore the default value instantly
      echo "c" > pp_od_clk_voltage
              "c" - commit the min and max value of sclk frequency to the system
              only after the commit command, the target values set by "s" command
              will take effect.
      Example:
      1)change power profile from "auto" to "manual"
              $ cat power_dpm_force_performance_level
              auto
              $ echo "manual" > power_dpm_force_performance_level
              $ cat power_dpm_force_performance_level
              manual
      2)check the default sclk frequency
              $ cat pp_od_clk_voltage
              OD_SCLK:
              0:        200Mhz
              1:       1400Mhz
              OD_RANGE:
              SCLK:     200MHz       1400MHz
      3)use "s" -- set command to configure the min and max sclk frequency
              $ echo "s 0 600" > pp_od_clk_voltage
              $ echo "s 1 1000" > pp_od_clk_voltage
              $ echo "c" > pp_od_clk_voltage
              $ cat pp_od_clk_voltage
              OD_SCLK:
              0:        600Mhz
              1:       1000Mhz
              OD_RANGE:
              SCLK:     200MHz       1400MHz
      4)use "r" -- reset command to restore the min or max sclk frequency
              $ echo "r" > pp_od_clk_voltage
              $ cat pp_od_clk_voltage
              OD_SCLK:
              0:        200Mhz
              1:       1400Mhz
              OD_RANGE:
              SCLK:     200MHz       1400MHz
      Signed-off-by: default avatarXiaojian Du <Xiaojian.Du@amd.com>
      Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
      Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      37030aba
    • Xiaojian Du's avatar
      drm/amd/pm: correct the sensor value of power for vangogh · 0e61f09a
      Xiaojian Du authored
      This patch is to correct the sensor value of power for vangogh.
      Signed-off-by: default avatarXiaojian Du <Xiaojian.Du@amd.com>
      Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
      Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      0e61f09a
  2. 24 Dec, 2020 2 commits
  3. 23 Dec, 2020 21 commits
  4. 18 Dec, 2020 12 commits
  5. 17 Dec, 2020 1 commit