[Intel-gfx] [PATCH] drm/i915: Disable pipe CRC before disabling the pipe.
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Tue Mar 6 14:05:08 UTC 2018
[ 74.730271] WARNING: CPU: 4 PID: 0 at drivers/gpu/drm/drm_vblank.c:614 drm_calc_vbltimestamp_from_scanoutpos+0x13e/0x2f0
[ 74.730311] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_intel crct10dif_pclmul snd_hda_codec crc32_pclmul snd_hwdep broadcom ghash_clmulni_intel snd_hda_core bcm_phy_lib snd_pcm tg3 lpc_ich mei_me mei prime_numbers
[ 74.730353] CPU: 4 PID: 0 Comm: swapper/4 Tainted: G U 4.16.0-rc2-CI-CI_DRM_3822+ #1
[ 74.730355] Hardware name: Dell Inc. XPS 8300 /0Y2MRG, BIOS A06 10/17/2011
[ 74.730359] RIP: 0010:drm_calc_vbltimestamp_from_scanoutpos+0x13e/0x2f0
[ 74.730361] RSP: 0018:ffff88022fb03d10 EFLAGS: 00010086
[ 74.730365] RAX: ffffffffa0291d20 RBX: ffff88021a180000 RCX: 0000000000000001
[ 74.730367] RDX: ffffffff820e7db8 RSI: 0000000000000001 RDI: ffffffff82068cea
[ 74.730369] RBP: ffff88022fb03d70 R08: 0000000000000000 R09: ffffffff815d26d0
[ 74.730371] R10: 0000000000000000 R11: ffffffffa0161ca0 R12: 0000000000000001
[ 74.730373] R13: ffff880212448008 R14: ffff880212448330 R15: 0000000000000000
[ 74.730376] FS: 0000000000000000(0000) GS:ffff88022fb00000(0000) knlGS:0000000000000000
[ 74.730378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 74.730380] CR2: 000055edcbec9000 CR3: 0000000002210001 CR4: 00000000000606e0
[ 74.730382] Call Trace:
[ 74.730385] <IRQ>
[ 74.730397] drm_get_last_vbltimestamp+0x36/0x50
[ 74.730401] drm_update_vblank_count+0x64/0x240
[ 74.730409] drm_crtc_accurate_vblank_count+0x41/0x90
[ 74.730453] display_pipe_crc_irq_handler+0x176/0x220 [i915]
[ 74.730497] i9xx_pipe_crc_irq_handler+0xfe/0x150 [i915]
[ 74.730537] ironlake_irq_handler+0x618/0xa30 [i915]
[ 74.730548] __handle_irq_event_percpu+0x3c/0x340
[ 74.730556] handle_irq_event_percpu+0x1b/0x50
[ 74.730561] handle_irq_event+0x2f/0x50
[ 74.730566] handle_edge_irq+0xe4/0x1b0
[ 74.730572] handle_irq+0x11/0x20
[ 74.730576] do_IRQ+0x5e/0x120
[ 74.730584] common_interrupt+0x84/0x84
[ 74.730586] </IRQ>
[ 74.730591] RIP: 0010:cpuidle_enter_state+0xaa/0x350
[ 74.730593] RSP: 0018:ffffc9000008beb8 EFLAGS: 00000212 ORIG_RAX: ffffffffffffffde
[ 74.730597] RAX: ffff880226b80040 RBX: 000000000031fc3e RCX: 0000000000000001
[ 74.730599] RDX: 0000000000000000 RSI: ffffffff8210fb59 RDI: ffffffff820c02e7
[ 74.730601] RBP: 0000000000000004 R08: 00000000000040af R09: 0000000000000018
[ 74.730603] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
[ 74.730606] R13: ffffe8ffffd00430 R14: 0000001166120bf4 R15: ffffffff82294460
[ 74.730621] ? cpuidle_enter_state+0xa6/0x350
[ 74.730629] do_idle+0x188/0x1d0
[ 74.730636] cpu_startup_entry+0x14/0x20
[ 74.730641] start_secondary+0x129/0x160
[ 74.730646] secondary_startup_64+0xa5/0xb0
[ 74.730660] Code: e1 48 c7 c2 b8 7d 0e 82 be 01 00 00 00 48 c7 c7 ea 8c 06 82 e8 64 ec ff ff 48 8b 83 c8 07 00 00 48 83 78 28 00 0f 84 e2 fe ff ff <0f> 0b 45 31 ed e9 db fe ff ff 41 b8 d3 4d 62 10 89 c8 6a 03 41
[ 74.730754] ---[ end trace 14b1345705b68565 ]---
Cc: Marta Löfstedt <marta.lofstedt at intel.com>
Reported-by: Marta Löfstedt <marta.lofstedt at intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105185
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 1 +
drivers/gpu/drm/i915/intel_drv.h | 2 ++
drivers/gpu/drm/i915/intel_pipe_crc.c | 11 ++++++++++-
3 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 90988e66d87f..9d83444a6dcb 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12222,6 +12222,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
if (old_crtc_state->active) {
intel_crtc_disable_planes(crtc, old_crtc_state->plane_mask);
+ intel_crtc_disable_pipe_crc(crtc);
dev_priv->display.crtc_disable(to_intel_crtc_state(old_crtc_state), state);
intel_crtc->active = false;
intel_fbc_disable(intel_crtc);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d008137d7ffe..682414c85a2e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2126,7 +2126,9 @@ void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
#ifdef CONFIG_DEBUG_FS
int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name,
size_t *values_cnt);
+void intel_crtc_disable_pipe_crc(struct drm_crtc *crtc);
#else
#define intel_crtc_set_crc_source NULL
+#define intel_crtc_disable_pipe_crc(crtc) do {} while (0)
#endif
#endif /* __INTEL_DRV_H__ */
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index 11fd174e1b3c..8b8b292b1d0b 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -467,10 +467,19 @@ void intel_display_crc_init(struct drm_i915_private *dev_priv)
}
}
+void intel_crtc_disable_pipe_crc(struct drm_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
+
+ I915_WRITE(PIPE_CRC_CTL(crtc->index), 0);
+ POSTING_READ(PIPE_CRC_CTL(crtc->index));
+ synchronize_irq(dev_priv->drm.irq);
+}
+
int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name,
size_t *values_cnt)
{
- struct drm_i915_private *dev_priv = crtc->dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[crtc->index];
enum intel_display_power_domain power_domain;
enum intel_pipe_crc_source source;
--
2.16.2
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