[PATCH 1/2] drm/amd/pm: fulfill the API for navi1x gfxoff state retrieving

[Quan, Evan]

[AMD Public Use]

This will help gfxoff related issue debugging. Similar implementations were already added for APUs.

BR
Evan
-----Original Message-----
From: Chen, Jiansong (Simon) <Jiansong.Chen at amd.com>
Sent: Friday, January 15, 2021 11:01 PM
To: Quan, Evan <Evan.Quan at amd.com>; amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Quan, Evan <Evan.Quan at amd.com>
Subject: RE: [PATCH 1/2] drm/amd/pm: fulfill the API for navi1x gfxoff state retrieving

[AMD Public Use]

Can you help explain why we need introduce such a callback?  Seems it has presupposed pmfw's internal Implementation.

Regards,
Jiansong
-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Evan Quan
Sent: Friday, January 15, 2021 5:34 PM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Quan, Evan <Evan.Quan at amd.com>
Subject: [PATCH 1/2] drm/amd/pm: fulfill the API for navi1x gfxoff state retrieving

Support Navi1x gfxoff state retrieving.

Change-Id: I57aa506b82dc122bbead708c580a4720e536cfce
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/pm/inc/smu_v11_0.h        |  2 ++
 .../gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c   |  1 +
 .../gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c    | 24 +++++++++++++++++++
 3 files changed, 27 insertions(+)

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 13de692a4213..2857f1bf4e9a 100644
--- a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
+++ b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
@@ -287,5 +287,7 @@ int smu_v11_0_deep_sleep_control(struct smu_context *smu,

 void smu_v11_0_interrupt_work(struct smu_context *smu);

+uint32_t smu_v11_0_get_gfxoff_status(struct smu_context *smu);
+
 #endif
 #endif
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 7ebf9588983f..93a3b6b60c8f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2482,6 +2482,7 @@ static const struct pptable_funcs navi10_ppt_funcs = {  .get_fan_parameters = navi10_get_fan_parameters,  .post_init = navi10_post_smu_init,  .interrupt_work = smu_v11_0_interrupt_work,
+.get_gfx_off_status = smu_v11_0_get_gfxoff_status,
 };

 void navi10_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 147efe12973c..50566c613971 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
@@ -2127,3 +2127,27 @@ int smu_v11_0_deep_sleep_control(struct smu_context *smu,

 return ret;
 }
+
+/**
+ * smu_v11_0_get_gfxoff_status - get gfxoff status
+ *
+ * @smu: amdgpu_device pointer
+ *
+ * This function will be used to get gfxoff status
+ *
+ * Returns 0=GFXOFF(default).
+ * Returns 1=Transition out of GFX State.
+ * Returns 2=Not in GFXOFF.
+ * Returns 3=Transition into GFXOFF.
+ */
+uint32_t smu_v11_0_get_gfxoff_status(struct smu_context *smu) { struct
+amdgpu_device *adev = smu->adev; uint32_t gfxOff_Status = 0; uint32_t
+reg;
+
+reg = RREG32_SOC15(MP1, 0, mmMP1_SMN_EXT_SCRATCH0); gfxOff_Status = reg
+& 0x3;
+
+return gfxOff_Status;
+}
--
2.29.0

_______________________________________________
amd-gfx mailing list
amd-gfx at lists.freedesktop.org
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7CJiansong.Chen%40amd.com%7C72d2ceab33474d94460908d8b938c75a%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637463000820920597%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=3WeEJ8EjgUYyA%2FAF7r30%2BOCEPNkfLwsPWuFhEIfRkU0%3D&reserved=0