UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amd/display: Fix warning in disabling vblank irq 

[Why]
During gpu-reset, we toggle vblank irq by calling dc_interrupt_set()
instead of amdgpu_irq_get/put() because we don't want to change the irq
source's refcount. However, we see the warning when vblank irq is enabled
by dc_interrupt_set() during gpu-reset but disabled by amdgpu_irq_put()
after gpu-reset.

[How]
Only in dm_gpureset_toggle_interrupts() we toggle vblank interrupts by
calling dc_interrupt_set(). Apart from this we call dm_set_vblank()
which uses amdgpu_irq_get/put() to operate vblank irq.

Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alan Liu <haoping.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alan Liu 2023-05-02 17:54:50 +08:00 committed by Alex Deucher
parent 6812d74803
commit cd465a6700
2 changed files with 16 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -2475,20 +2475,25 @@ static void dm_gpureset_toggle_interrupts(struct amdgpu_device *adev,
if (acrtc && state->stream_status[i].plane_count != 0) {
irq_source = IRQ_TYPE_PFLIP + acrtc->otg_inst;
rc = dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
DRM_DEBUG_VBL("crtc %d - vupdate irq %sabling: r=%d\n",
acrtc->crtc_id, enable ? "en" : "dis", rc);
if (rc)
DRM_WARN("Failed to %s pflip interrupts\n",
enable ? "enable" : "disable");
if (enable) {
rc = amdgpu_dm_crtc_enable_vblank(&acrtc->base);
if (rc)
DRM_WARN("Failed to enable vblank interrupts\n");
} else {
amdgpu_dm_crtc_disable_vblank(&acrtc->base);
}
if (amdgpu_dm_crtc_vrr_active(to_dm_crtc_state(acrtc->base.state)))
rc = amdgpu_dm_crtc_set_vupdate_irq(&acrtc->base, true);
} else
rc = amdgpu_dm_crtc_set_vupdate_irq(&acrtc->base, false);
if (rc)
DRM_WARN("Failed to %sable vupdate interrupt\n", enable ? "en" : "dis");
irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
/* During gpu-reset we disable and then enable vblank irq, so
* don't use amdgpu_irq_get/put() to avoid refcount change.
*/
if (!dc_interrupt_set(adev->dm.dc, irq_source, enable))
DRM_WARN("Failed to %sable vblank interrupt\n", enable ? "en" : "dis");
}
}

16
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
View File

@ -146,7 +146,6 @@ static void vblank_control_worker(struct work_struct *work)
static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
{
enum dc_irq_source irq_source;
struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
struct amdgpu_device *adev = drm_to_adev(crtc->dev);
struct dm_crtc_state *acrtc_state = to_dm_crtc_state(crtc->state);
@ -169,18 +168,9 @@ static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
if (rc)
return rc;
if (amdgpu_in_reset(adev)) {
irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
/* During gpu-reset we disable and then enable vblank irq, so
* don't use amdgpu_irq_get/put() to avoid refcount change.
*/
if (!dc_interrupt_set(adev->dm.dc, irq_source, enable))
rc = -EBUSY;
} else {
rc = (enable)
? amdgpu_irq_get(adev, &adev->crtc_irq, acrtc->crtc_id)
: amdgpu_irq_put(adev, &adev->crtc_irq, acrtc->crtc_id);
}
rc = (enable)
? amdgpu_irq_get(adev, &adev->crtc_irq, acrtc->crtc_id)
: amdgpu_irq_put(adev, &adev->crtc_irq, acrtc->crtc_id);
if (rc)
return rc;