dri-devel June 2022

dri-devel@lists.freedesktop.org

332 participants
697 discussions

[PATCH] drm/amd/pm: Fix a typo in comments
by Zhang Jiaming 22 Jun '22

22 Jun '22

There is a spelling mistake in comments. Replace 'paramater' with 'parameter'. Signed-off-by: Zhang Jiaming <jiaming(a)nfschina.com> --- drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/arcturus_ppsmc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/arcturus_ppsmc.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/arcturus_ppsmc.h index 45f5d29bc705..15b313baa0ee 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/arcturus_ppsmc.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/arcturus_ppsmc.h @@ -120,7 +120,7 @@ #define PPSMC_MSG_ReadSerialNumTop32 0x40 #define PPSMC_MSG_ReadSerialNumBottom32 0x41 -/* paramater for MSG_LightSBR +/* parameter for MSG_LightSBR * 1 -- Enable light secondary bus reset, only do nbio respond without further handling, * leave driver to handle the real reset * 0 -- Disable LightSBR, default behavior, SMU will pass the reset to PSP -- 2.25.1

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[PATCH] drm/msm/dp: reset drm_dev to NULL at dp_display_unbind()
by Kuogee Hsieh 22 Jun '22

22 Jun '22

During msm initialize phase, dp_display_unbind() will be called to undo initializations had been done by dp_display_bind() previously if there is error happen at msm_drm_bind. Under this kind of circumstance, drm_device may not be populated completed which causes system crash at drm_dev_dbg(). This patch reset drm_dev to NULL so that following drm_dev_dbg() will not refer to any internal fields of drm_device to prevent system from crashing. Below are panic stack trace, [ 53.584904] Unable to handle kernel paging request at virtual address 0000000070018001 . [ 53.702212] Hardware name: Qualcomm Technologies, Inc. sc7280 CRD platform (rev5+) (DT) [ 53.710445] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 53.717596] pc : string_nocheck+0x1c/0x64 [ 53.721738] lr : string+0x54/0x60 [ 53.725162] sp : ffffffc013d6b650 [ 53.728590] pmr_save: 000000e0 [ 53.731743] x29: ffffffc013d6b650 x28: 0000000000000002 x27: 0000000000ffffff [ 53.739083] x26: ffffffc013d6b710 x25: ffffffd07a066ae0 x24: ffffffd07a419f97 [ 53.746420] x23: ffffffd07a419f99 x22: ffffff81fef360d4 x21: ffffff81fef364d4 [ 53.753760] x20: ffffffc013d6b6f8 x19: ffffffd07a06683c x18: 0000000000000000 [ 53.761093] x17: 4020386678302f30 x16: 00000000000000b0 x15: ffffffd0797523c8 [ 53.768429] x14: 0000000000000004 x13: ffff0000ffffff00 x12: ffffffd07a066b2c [ 53.775780] x11: 0000000000000000 x10: 000000000000013c x9 : 0000000000000000 [ 53.783117] x8 : ffffff81fef364d4 x7 : 0000000000000000 x6 : 0000000000000000 [ 53.790445] x5 : 0000000000000000 x4 : ffff0a00ffffff04 x3 : ffff0a00ffffff04 [ 53.797783] x2 : 0000000070018001 x1 : ffffffffffffffff x0 : ffffff81fef360d4 [ 53.805136] Call trace: [ 53.807667] string_nocheck+0x1c/0x64 [ 53.811439] string+0x54/0x60 [ 53.814498] vsnprintf+0x374/0x53c [ 53.818009] pointer+0x3dc/0x40c [ 53.821340] vsnprintf+0x398/0x53c [ 53.824854] vscnprintf+0x3c/0x88 [ 53.828274] __trace_array_vprintk+0xcc/0x2d4 [ 53.832768] trace_array_printk+0x8c/0xb4 [ 53.836900] drm_trace_printf+0x74/0x9c [ 53.840875] drm_dev_dbg+0xfc/0x1b8 [ 53.844480] dp_pm_suspend+0x70/0xf8 [ 53.848164] dpm_run_callback+0x60/0x1a0 [ 53.852222] __device_suspend+0x304/0x3f4 [ 53.856363] dpm_suspend+0xf8/0x3a8 [ 53.859959] dpm_suspend_start+0x8c/0xc0 Signed-off-by: Kuogee Hsieh <quic_khsieh(a)quicinc.com> --- drivers/gpu/drm/msm/dp/dp_display.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 2b72639..02fff70 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -316,6 +316,8 @@ static void dp_display_unbind(struct device *dev, struct device *master, dp_power_client_deinit(dp->power); dp_aux_unregister(dp->aux); + dp->drm_dev = NULL; + dp->aux->drm_dev = NULL; priv->dp[dp->id] = NULL; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

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[PATCH v2 00/68] drm/vc4: Fix hotplug for vc4
by Maxime Ripard 22 Jun '22

22 Jun '22

Hi, Here is a series that address multiple issues when trying to unbind/rebind vc4-related devices to their drivers. Most of these issues involve either use-after-free, improper resource liberation or similar. It has been tested on the Pi3 and Pi4, with X and glxgears running and KASAN enabled to properly validate our memory accesses. Pi3 isn't functional after a rebind though, with vblank timeouts occuring. I'm not quite sure why at this point, but at least the kernel doesn't completely crash now. Let me know what you think, Maxime --- Changes from v1: - Rebased on top on next-20220622 - Consolidated the new drmm init helpers with their alloc counterparts - Dropped the drmm writeback and simple encoder helpers - Clarified the documentation of drm_connector_unregister - Removed the drm_connector_unregister usage - Fixed a vblank timeout when unbinding - Renamed the kref functions in vc4_dsi - Collected the tags Maxime Ripard (68): drm/mipi-dsi: Detach devices when removing the host drm/crtc: Introduce drmm_crtc_init_with_planes drm/encoder: Introduce drmm_encoder_init drm/connector: Reorder headers drm/connector: Mention the cleanup after drm_connector_init drm/connector: Clarify when drm_connector_unregister is needed drm/connector: Introduce drmm_connector_init drm/connector: Introduce drmm_connector_init_with_ddc drm/bridge: panel: Introduce drmm_panel_bridge_add drm/bridge: panel: Introduce drmm_of_get_bridge drm/vc4: drv: Call component_unbind_all() drm/vc4: drv: Use drm_dev_unplug drm/vc4: crtc: Create vblank reporting function drm/vc4: hvs: Protect device resources after removal drm/vc4: hvs: Remove planes currently allocated before taking down drm/vc4: plane: Take possible_crtcs as an argument drm/vc4: crtc: Remove manual plane removal on error drm/vc4: plane: Switch to drmm_universal_plane_alloc() drm/vc4: crtc: Move debugfs_name to crtc_data drm/vc4: crtc: Switch to drmm_kzalloc drm/vc4: crtc: Switch to DRM-managed CRTC initialization drm/vc4: dpi: Remove vc4_dev dpi pointer drm/vc4: dpi: Embed DRM structures into the private structure drm/vc4: dpi: Switch to drmm_kzalloc drm/vc4: dpi: Return an error if we can't enable our clock drm/vc4: dpi: Remove unnecessary drm_of_panel_bridge_remove call drm/vc4: dpi: Add action to disable the clock drm/vc4: dpi: Switch to DRM-managed encoder initialization drm/vc4: dpi: Switch to drmm_of_get_bridge drm/vc4: dpi: Protect device resources drm/vc4: dsi: Embed DRM structures into the private structure drm/vc4: dsi: Switch to DRM-managed encoder initialization drm/vc4: dsi: Switch to drmm_of_get_bridge drm/vc4: dsi: Fix the driver structure lifetime drm/vc4: dsi: Switch to devm_pm_runtime_enable drm/vc4: hdmi: Switch to drmm_kzalloc drm/vc4: hdmi: Remove call to drm_connector_unregister() drm/vc4: hdmi: Switch to DRM-managed encoder initialization drm/vc4: hdmi: Switch to DRM-managed connector initialization drm/vc4: hdmi: Switch to device-managed ALSA initialization drm/vc4: hdmi: Switch to device-managed CEC initialization drm/vc4: hdmi: Use a device-managed action for DDC drm/vc4: hdmi: Switch to DRM-managed kfree to build regsets drm/vc4: hdmi: Use devm to register hotplug interrupts drm/vc4: hdmi: Move audio structure offset checks drm/vc4: hdmi: Protect device resources after removal drm/vc4: hdmi: Switch to devm_pm_runtime_enable drm/vc4: txp: Remove vc4_dev txp pointer drm/vc4: txp: Remove duplicate regset drm/vc4: txp: Switch to drmm_kzalloc drm/vc4: txp: Remove call to drm_connector_unregister() drm/vc4: txp: Protect device resources drm/vc4: vec: Remove vc4_dev vec pointer drm/vc4: vec: Embed DRM structures into the private structure drm/vc4: vec: Switch to drmm_kzalloc drm/vc4: vec: Remove call to drm_connector_unregister() drm/vc4: vec: Switch to DRM-managed encoder initialization drm/vc4: vec: Switch to DRM-managed connector initialization drm/vc4: vec: Protect device resources after removal drm/vc4: vec: Switch to devm_pm_runtime_enable drm/vc4: debugfs: Protect device resources drm/vc4: debugfs: Return an error on failure drm/vc4: debugfs: Simplify debugfs registration drm/vc4: Switch to drmm_mutex_init drm/vc4: perfmon: Add missing mutex_destroy drm/vc4: v3d: Stop disabling interrupts drm/vc4: v3d: Rework the runtime_pm setup drm/vc4: v3d: Switch to devm_pm_runtime_enable drivers/gpu/drm/bridge/panel.c | 74 ++++ drivers/gpu/drm/drm_connector.c | 196 +++++++-- drivers/gpu/drm/drm_crtc.c | 75 +++- drivers/gpu/drm/drm_encoder.c | 57 ++- drivers/gpu/drm/drm_mipi_dsi.c | 1 + drivers/gpu/drm/vc4/vc4_bo.c | 33 +- drivers/gpu/drm/vc4/vc4_crtc.c | 90 ++-- drivers/gpu/drm/vc4/vc4_debugfs.c | 71 ++-- drivers/gpu/drm/vc4/vc4_dpi.c | 131 +++--- drivers/gpu/drm/vc4/vc4_drv.c | 21 +- drivers/gpu/drm/vc4/vc4_drv.h | 47 ++- drivers/gpu/drm/vc4/vc4_dsi.c | 133 ++++-- drivers/gpu/drm/vc4/vc4_gem.c | 10 +- drivers/gpu/drm/vc4/vc4_hdmi.c | 659 ++++++++++++++++++++++-------- drivers/gpu/drm/vc4/vc4_hdmi.h | 3 +- drivers/gpu/drm/vc4/vc4_hvs.c | 138 ++++++- drivers/gpu/drm/vc4/vc4_irq.c | 2 +- drivers/gpu/drm/vc4/vc4_perfmon.c | 1 + drivers/gpu/drm/vc4/vc4_plane.c | 36 +- drivers/gpu/drm/vc4/vc4_txp.c | 55 ++- drivers/gpu/drm/vc4/vc4_v3d.c | 65 ++- drivers/gpu/drm/vc4/vc4_vec.c | 216 +++++----- include/drm/drm_bridge.h | 4 + include/drm/drm_connector.h | 9 + include/drm/drm_crtc.h | 6 + include/drm/drm_encoder.h | 5 + 26 files changed, 1514 insertions(+), 624 deletions(-) -- 2.36.1

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[PATCH] gpu/drm/radeon: Fix typo in comments
by Jiang Jian 22 Jun '22

22 Jun '22

Remove the repeated word 'and' from comments Signed-off-by: Jiang Jian <jiangjian(a)cdjrlc.com> --- drivers/gpu/drm/radeon/r300_reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r300_reg.h b/drivers/gpu/drm/radeon/r300_reg.h index 60d5413bafa1..9d341cff63ee 100644 --- a/drivers/gpu/drm/radeon/r300_reg.h +++ b/drivers/gpu/drm/radeon/r300_reg.h @@ -1103,7 +1103,7 @@ * The destination register index is in FPI1 (color) and FPI3 (alpha) * together with enable bits. * There are separate enable bits for writing into temporary registers - * (DSTC_REG_* /DSTA_REG) and and program output registers (DSTC_OUTPUT_* + * (DSTC_REG_* /DSTA_REG) and program output registers (DSTC_OUTPUT_* * /DSTA_OUTPUT). You can write to both at once, or not write at all (the * same index must be used for both). * -- 2.17.1

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[PATCH v4 0/3] drm/doc/rfc: i915 VM_BIND feature design + uapi
by Niranjana Vishwanathapura 22 Jun '22

22 Jun '22

This is the i915 driver VM_BIND feature design RFC patch series along with the required uapi definition and description of intended use cases. v2: Reduce the scope to simple Mesa use case. Remove all compute related uapi, vm_bind/unbind queue support and only support a timeline out fence instead of an in/out timeline fence array. v3: Expand documentation on dma-resv usage, TLB flushing, execbuf3 and VM_UNBIND. Add FENCE_VALID and TLB_FLUSH flags. v4: Remove I915_GEM_VM_BIND_TLB_FLUSH flag and add additional uapi documentation for vm_bind/unbind. Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura(a)intel.com> Niranjana Vishwanathapura (3): drm/doc/rfc: VM_BIND feature design document drm/i915: Update i915 uapi documentation drm/doc/rfc: VM_BIND uapi definition Documentation/gpu/rfc/i915_vm_bind.h | 252 +++++++++++++++++++++++++ Documentation/gpu/rfc/i915_vm_bind.rst | 245 ++++++++++++++++++++++++ Documentation/gpu/rfc/index.rst | 4 + include/uapi/drm/i915_drm.h | 205 +++++++++++++++----- 4 files changed, 661 insertions(+), 45 deletions(-) create mode 100644 Documentation/gpu/rfc/i915_vm_bind.h create mode 100644 Documentation/gpu/rfc/i915_vm_bind.rst -- 2.21.0.rc0.32.g243a4c7e27

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[PATCH] drm/fourcc: fix integer type usage in uapi header
by Carlos Llamas 22 Jun '22

22 Jun '22

Kernel uapi headers are supposed to use __[us]{8,16,32,64} types defined by <linux/types.h> as opposed to 'uint32_t' and similar. See [1] for the relevant discussion about this topic. In this particular case, the usage of 'uint64_t' escaped headers_check as these macros are not being called here. However, the following program triggers a compilation error: #include <drm/drm_fourcc.h> int main() { unsigned long x = AMD_FMT_MOD_CLEAR(RB); return 0; } gcc error: drm.c:5:27: error: ‘uint64_t’ undeclared (first use in this function) 5 | unsigned long x = AMD_FMT_MOD_CLEAR(RB); | ^~~~~~~~~~~~~~~~~ This patch changes AMD_FMT_MOD_{SET,CLEAR} macros to use the correct integer types, which fixes the above issue. [1] https://lkml.org/lkml/2019/6/5/18 Fixes: 8ba16d599374 ("drm/fourcc: Add AMD DRM modifiers.") Signed-off-by: Carlos Llamas <cmllamas(a)google.com> --- include/uapi/drm/drm_fourcc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index f1972154a594..0980678d502d 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -1444,11 +1444,11 @@ drm_fourcc_canonicalize_nvidia_format_mod(__u64 modifier) #define AMD_FMT_MOD_PIPE_MASK 0x7 #define AMD_FMT_MOD_SET(field, value) \ - ((uint64_t)(value) << AMD_FMT_MOD_##field##_SHIFT) + ((__u64)(value) << AMD_FMT_MOD_##field##_SHIFT) #define AMD_FMT_MOD_GET(field, value) \ (((value) >> AMD_FMT_MOD_##field##_SHIFT) & AMD_FMT_MOD_##field##_MASK) #define AMD_FMT_MOD_CLEAR(field) \ - (~((uint64_t)AMD_FMT_MOD_##field##_MASK << AMD_FMT_MOD_##field##_SHIFT)) + (~((__u64)AMD_FMT_MOD_##field##_MASK << AMD_FMT_MOD_##field##_SHIFT)) #if defined(__cplusplus) } -- 2.37.0.rc0.104.g0611611a94-goog

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[PATCH 0/3] drm/msm/dp: More cleanups for force link train
by Stephen Boyd 22 Jun '22

22 Jun '22

These patches do a little cleanup on the v9 patch from Kuogee. Stephen Boyd (3): drm/msm/dp: Reorganize code to avoid forward declaration drm/msm/dp: Remove pixel_rate from struct dp_ctrl drm/msm/dp: Get rid of dp_ctrl_on_stream_phy_test_report() drivers/gpu/drm/msm/dp/dp_ctrl.c | 145 ++++++++++++++----------------- drivers/gpu/drm/msm/dp/dp_ctrl.h | 1 - 2 files changed, 65 insertions(+), 81 deletions(-) [1] https://lore.kernel.org/r/1655411200-7255-1-git-send-email-quic_khsieh@quic… base-commit: 9639746eebb13068dc9de6f436151bd88da2b827 prerequisite-patch-id: 2fc33a2830ec84d922023fddb585728c48a59525 -- https://chromeos.dev

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[PATCH v4 0/7] usb: typec: Introduce typec-switch binding
by Prashant Malani 22 Jun '22

22 Jun '22

This series introduces a binding for Type-C data lane switches. These control the routing and operating modes of USB Type-C data lanes based on the PD messaging from the Type-C port driver regarding connected peripherals. The first patch introduces a change to the Type-C mux class mode-switch matching code, while the second adds a config guard to a Type-C header. The next couple of patches introduce the new "typec-switch" binding as well as one user of it (the ANX7625 drm bridge). The remaining patches add functionality to the anx7625 driver to register the mode-switches, as well as program its crosspoint switch depending on which Type-C port has a DisplayPort (DP) peripheral connected to it. v3: https://lore.kernel.org/linux-usb/20220614193558.1163205-1-pmalani@chromium… Changes since v3: - Some more modifications to the anx7625 binding patch (4/7). - Picked up 1 more Reviewed-by tag. Pin-Yen Lin (1): drm/bridge: anx7625: Add typec_mux_set callback function Prashant Malani (6): usb: typec: mux: Allow muxes to specify mode-switch usb: typec: mux: Add CONFIG guards for functions dt-bindings: usb: Add Type-C switch binding dt-bindings: drm/bridge: anx7625: Add mode-switch support drm/bridge: anx7625: Register number of Type C switches drm/bridge: anx7625: Register Type-C mode switches .../display/bridge/analogix,anx7625.yaml | 64 ++++++++ .../devicetree/bindings/usb/typec-switch.yaml | 74 +++++++++ drivers/gpu/drm/bridge/analogix/anx7625.c | 148 ++++++++++++++++++ drivers/gpu/drm/bridge/analogix/anx7625.h | 20 +++ drivers/usb/typec/mux.c | 8 +- include/linux/usb/typec_mux.h | 44 +++++- 6 files changed, 350 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/typec-switch.yaml -- 2.36.1.476.g0c4daa206d-goog

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[PATCH v4 0/4] Expand CRC to support interface blocks
by Jessica Zhang 22 Jun '22

22 Jun '22

Refactor existing CRC code for layer mixer and add CRC support for interface blocks Changes since V1: - Create helper methods for collect_misr and setup_misr in dpu_hw_util.c - Move common bitmasks into dpu_hw_util.h - Update copyrights - Create a dynamically allocated crcs array in dpu_crtc_state - Collect CRCs for all drm_encoders connected to the crtc Changes since V2: - Separate dpu_hw_util changes into a separate patch - Revert back to using a static array and define a macro for MAX_CRC_ENTRIES Changes since V3: - Move crcs array into block-specific get_crc helper methods - Rename "enc" source string to "encoder" Jessica Zhang (4): drm/msm/dpu: Move LM CRC code into separate method drm/msm/dpu: Move MISR methods to dpu_hw_util drm/msm/dpu: Add MISR register support for interface drm/msm/dpu: Add interface support for CRC debugfs drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 111 +++++++++++++++----- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 5 + drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 64 +++++++++++ drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 22 ++++ drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 19 +++- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h | 8 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c | 42 +------- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.c | 49 ++++++++- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_util.h | 16 +++ 9 files changed, 269 insertions(+), 67 deletions(-) -- 2.35.1

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[PATCH] drm/msm/dpu: Increment vsync_cnt before waking up userspace
by Stephen Boyd 22 Jun '22

22 Jun '22

The 'vsync_cnt' is used to count the number of frames for a crtc. Unfortunately, we increment the count after waking up userspace via dpu_crtc_vblank_callback() calling drm_crtc_handle_vblank(). drm_crtc_handle_vblank() wakes up userspace processes that have called drm_wait_vblank_ioctl(), and if that ioctl is expecting the count to increase it won't. Increment the count before calling into the drm APIs so that we don't have to worry about ordering the increment with anything else in drm. This fixes a software video decode test that fails to see frame counts increase on Trogdor boards. Cc: Mark Yacoub <markyacoub(a)chromium.org> Cc: Jessica Zhang <quic_jesszhan(a)quicinc.com> Fixes: 885455d6bf82 ("drm/msm: Change dpu_crtc_get_vblank_counter to use vsync count.") Signed-off-by: Stephen Boyd <swboyd(a)chromium.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 3a462e327e0e..a1b8c4592943 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -1251,12 +1251,13 @@ static void dpu_encoder_vblank_callback(struct drm_encoder *drm_enc, DPU_ATRACE_BEGIN("encoder_vblank_callback"); dpu_enc = to_dpu_encoder_virt(drm_enc); + atomic_inc(&phy_enc->vsync_cnt); + spin_lock_irqsave(&dpu_enc->enc_spinlock, lock_flags); if (dpu_enc->crtc) dpu_crtc_vblank_callback(dpu_enc->crtc); spin_unlock_irqrestore(&dpu_enc->enc_spinlock, lock_flags); - atomic_inc(&phy_enc->vsync_cnt); DPU_ATRACE_END("encoder_vblank_callback"); } base-commit: f2906aa863381afb0015a9eb7fefad885d4e5a56 -- https://chromeos.dev

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dri-devel June 2022