Chris Wilson <[email protected]> writes: > [12493.693827] WARNING: CPU: 1 PID: 14860 at > drivers/gpu/drm/i915/intel_uncore.c:795 __unclaimed_reg_debug+0x5d/0x80 [i915] > [12493.693868] Unclaimed read from register 0x1f0024 > [12493.693905] Modules linked in: vgem i915 drm_kms_helper drm intel_gtt > i2c_algo_bit syscopyarea sysfillrect sysimgblt fb_sys_fops prime_numbers > intel_powerclamp crct10dif_pclmul crc32_pclmul crc32c_intel > ghash_clmulni_intel cryptd lpc_ich i2c_i801 mfd_core video > i2c_designware_platform i2c_designware_core i2c_core button autofs4 sd_mod > ahci libahci libata scsi_mod [last unloaded: i915] > [12493.694039] CPU: 1 PID: 14860 Comm: intel-gpu-overl Tainted: G U > 4.10.0-rc7+ #11 > [12493.694079] Hardware name: GIGABYTE GB-BXBT-1900/MZBAYAB-00, BIOS F8 > 03/02/2016 > [12493.694121] Call Trace: > [12493.694169] dump_stack+0x67/0x9d > [12493.694235] __warn+0x117/0x140 > [12493.694288] warn_slowpath_fmt+0x4f/0x60 > [12493.694344] ? do_raw_spin_lock+0x116/0x180 > [12493.694533] ? check_for_unclaimed_mmio+0x98/0xe0 [i915] > [12493.694727] __unclaimed_reg_debug+0x5d/0x80 [i915] > [12493.694923] fwtable_read32+0x2c5/0x330 [i915] > [12493.695108] i915_interrupt_info+0xd52/0xf80 [i915] > [12493.695302] ? gen6_write16+0x310/0x310 [i915] > [12493.695357] seq_read+0x187/0x710 > [12493.695412] full_proxy_read+0x75/0xc0 > [12493.695472] __vfs_read+0x5a/0x220 > [12493.695524] ? kmem_cache_free+0x6c/0x260 > [12493.695577] ? putname+0x97/0xa0 > [12493.695629] ? putname+0x97/0xa0 > [12493.695682] ? rcu_read_lock_sched_held+0xb8/0xd0 > [12493.695735] ? rw_verify_area+0x65/0x140 > [12493.695787] vfs_read+0xd1/0x1f0 > [12493.695840] SyS_read+0x62/0xc0 > [12493.695893] entry_SYSCALL_64_fastpath+0x1c/0xb1 > [12493.695943] RIP: 0033:0x7f82dca99ba0 > [12493.695985] RSP: 002b:00007ffc0bdfd4f8 EFLAGS: 00000246 ORIG_RAX: > 0000000000000000 > [12493.696031] RAX: ffffffffffffffda RBX: 00007ffc0be005a0 RCX: > 00007f82dca99ba0 > [12493.696073] RDX: 0000000000001fff RSI: 00007ffc0bdfd500 RDI: > 000000000000001a > [12493.696115] RBP: ffffffff810fb639 R08: 302f6972642f6775 R09: > 00007f82dca0999a > [12493.696157] R10: 00007f82dcd62760 R11: 0000000000000246 R12: > ffff880069a17f98 > [12493.696199] R13: 00007ffc0bdfd428 R14: 0000000000000003 R15: > 00007ffc0bdfd428 > [12493.696250] ? trace_hardirqs_off_caller+0xd9/0x130 > [12493.696300] ---[ end trace 52ccf4d39793cc59 ]--- > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99761 > Signed-off-by: Chris Wilson <[email protected]>
Reviewed-by: Mika Kuoppala <[email protected]> > --- > drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++++++- > 1 file changed, 13 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c > b/drivers/gpu/drm/i915/i915_debugfs.c > index 8ab8b15f3461..9030cf9961d7 100644 > --- a/drivers/gpu/drm/i915/i915_debugfs.c > +++ b/drivers/gpu/drm/i915/i915_debugfs.c > @@ -881,10 +881,22 @@ static int i915_interrupt_info(struct seq_file *m, void > *data) > I915_READ(VLV_IIR_RW)); > seq_printf(m, "Display IMR:\t%08x\n", > I915_READ(VLV_IMR)); > - for_each_pipe(dev_priv, pipe) > + for_each_pipe(dev_priv, pipe) { > + enum intel_display_power_domain power_domain; > + > + power_domain = POWER_DOMAIN_PIPE(pipe); > + if (!intel_display_power_get_if_enabled(dev_priv, > + power_domain)) { > + seq_printf(m, "Pipe %c power disabled\n", > + pipe_name(pipe)); > + continue; > + } > + > seq_printf(m, "Pipe %c stat:\t%08x\n", > pipe_name(pipe), > I915_READ(PIPESTAT(pipe))); > + intel_display_power_put(dev_priv, power_domain); > + } > > seq_printf(m, "Master IER:\t%08x\n", > I915_READ(VLV_MASTER_IER)); > -- > 2.11.0 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
