From 234676d6dbbcd8b2a495e76efdc69e24c0aa300f Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 1 Oct 2020 10:43:28 -0400 Subject: [PATCH] drm/amdgpu/swsmu: add interrupt work handler for smu11 parts We need to schedule the smu AC/DC interrupt ack to avoid potentially sleeping if the smu message mutex is contended. Fixes: e1188aacad1730 ("drm/amdgpu/smu11: add support for SMU AC/DC interrupts") Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/inc/smu_v11_0.h | 2 ++ drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 1 + drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 1 + .../gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 1 + drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 10 ++++++++-- 5 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h index 03198d214bbaa..2d1c3babaa3a0 100644 --- a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h +++ b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h @@ -280,5 +280,7 @@ int smu_v11_0_gfx_ulv_control(struct smu_context *smu, int smu_v11_0_deep_sleep_control(struct smu_context *smu, bool enablement); +void smu_v11_0_interrupt_work(struct smu_context *smu); + #endif #endif diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c index d298fa65274df..fc376281e629a 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c @@ -2388,6 +2388,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = { .gfx_ulv_control = smu_v11_0_gfx_ulv_control, .deep_sleep_control = smu_v11_0_deep_sleep_control, .get_fan_parameters = arcturus_get_fan_parameters, + .interrupt_work = smu_v11_0_interrupt_work, }; void arcturus_set_ppt_funcs(struct smu_context *smu) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c index be44cb941e732..3f1377f284937 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c @@ -2755,6 +2755,7 @@ static const struct pptable_funcs navi10_ppt_funcs = { .deep_sleep_control = smu_v11_0_deep_sleep_control, .get_fan_parameters = navi10_get_fan_parameters, .post_init = navi10_post_smu_init, + .interrupt_work = smu_v11_0_interrupt_work, }; void navi10_set_ppt_funcs(struct smu_context *smu) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index a2cb831ce8aae..3c8732f34b1fc 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -2784,6 +2784,7 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = { .gfx_ulv_control = smu_v11_0_gfx_ulv_control, .deep_sleep_control = smu_v11_0_deep_sleep_control, .get_fan_parameters = sienna_cichlid_get_fan_parameters, + .interrupt_work = smu_v11_0_interrupt_work, }; void sienna_cichlid_set_ppt_funcs(struct smu_context *smu) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c index d8ca6d968813d..2380759ddf480 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c @@ -955,6 +955,12 @@ static int smu_v11_0_process_pending_interrupt(struct smu_context *smu) return ret; } +void smu_v11_0_interrupt_work(struct smu_context *smu) +{ + if (smu_v11_0_ack_ac_dc_interrupt(smu)) + dev_err(smu->adev->dev, "Ack AC/DC interrupt Failed!\n"); +} + int smu_v11_0_enable_thermal_alert(struct smu_context *smu) { int ret = 0; @@ -1320,11 +1326,11 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev, switch (ctxid) { case 0x3: dev_dbg(adev->dev, "Switched to AC mode!\n"); - smu_v11_0_ack_ac_dc_interrupt(&adev->smu); + schedule_work(&smu->interrupt_work); break; case 0x4: dev_dbg(adev->dev, "Switched to DC mode!\n"); - smu_v11_0_ack_ac_dc_interrupt(&adev->smu); + schedule_work(&smu->interrupt_work); break; case 0x7: /* -- 2.30.2