* [PATCH] drm/amd/powerplay: disable engine spread spectrum feature on Vega10.
@ 2017-05-04 3:33 Rex Zhu
[not found] ` <1493868804-794-1-git-send-email-Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Rex Zhu @ 2017-05-04 3:33 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW; +Cc: Rex Zhu
Vega10 atomfirmware do not have ASIC_InternalSS_Info table
so disable this feature by default in driver.
Change-Id: I2ef2c668fb41fc6c6f448c7c0f1812baf8e7b375
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 8baa890..e24e54c 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -1535,7 +1535,11 @@ static int vega10_populate_single_gfx_level(struct pp_hwmgr *hwmgr,
current_gfxclk_level->FbMult =
cpu_to_le32(dividers.ulPll_fb_mult);
/* Spread FB Multiplier bit: bit 0:8 int, bit 31:16 frac */
- current_gfxclk_level->SsOn = dividers.ucPll_ss_enable;
+ if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
+ PHM_PlatformCaps_EngineSpreadSpectrumSupport))
+ current_gfxclk_level->SsOn = dividers.ucPll_ss_enable;
+ else
+ current_gfxclk_level->SsOn = 0;
current_gfxclk_level->SsFbMult =
cpu_to_le32(dividers.ulPll_ss_fbsmult);
current_gfxclk_level->SsSlewFrac =
--
1.9.1
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/amd/powerplay: disable engine spread spectrum feature on Vega10.
[not found] ` <1493868804-794-1-git-send-email-Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
@ 2017-05-04 3:48 ` Wang, Ken
2017-05-04 3:52 ` Deucher, Alexander
1 sibling, 0 replies; 3+ messages in thread
From: Wang, Ken @ 2017-05-04 3:48 UTC (permalink / raw)
To: Zhu, Rex, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW
[-- Attachment #1.1: Type: text/plain, Size: 2033 bytes --]
Reviewed-by: Ken Wang <Qingqing.Wang-5C7GfCeVMHo@public.gmane.org>
________________________________
From: amd-gfx <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org> on behalf of Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
Sent: Thursday, May 4, 2017 11:33:24 AM
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Zhu, Rex
Subject: [PATCH] drm/amd/powerplay: disable engine spread spectrum feature on Vega10.
Vega10 atomfirmware do not have ASIC_InternalSS_Info table
so disable this feature by default in driver.
Change-Id: I2ef2c668fb41fc6c6f448c7c0f1812baf8e7b375
Signed-off-by: Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 8baa890..e24e54c 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -1535,7 +1535,11 @@ static int vega10_populate_single_gfx_level(struct pp_hwmgr *hwmgr,
current_gfxclk_level->FbMult =
cpu_to_le32(dividers.ulPll_fb_mult);
/* Spread FB Multiplier bit: bit 0:8 int, bit 31:16 frac */
- current_gfxclk_level->SsOn = dividers.ucPll_ss_enable;
+ if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
+ PHM_PlatformCaps_EngineSpreadSpectrumSupport))
+ current_gfxclk_level->SsOn = dividers.ucPll_ss_enable;
+ else
+ current_gfxclk_level->SsOn = 0;
current_gfxclk_level->SsFbMult =
cpu_to_le32(dividers.ulPll_ss_fbsmult);
current_gfxclk_level->SsSlewFrac =
--
1.9.1
_______________________________________________
amd-gfx mailing list
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* RE: [PATCH] drm/amd/powerplay: disable engine spread spectrum feature on Vega10.
[not found] ` <1493868804-794-1-git-send-email-Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
2017-05-04 3:48 ` Wang, Ken
@ 2017-05-04 3:52 ` Deucher, Alexander
1 sibling, 0 replies; 3+ messages in thread
From: Deucher, Alexander @ 2017-05-04 3:52 UTC (permalink / raw)
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW; +Cc: Zhu, Rex
> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces@lists.freedesktop.org] On Behalf
> Of Rex Zhu
> Sent: Wednesday, May 03, 2017 11:33 PM
> To: amd-gfx@lists.freedesktop.org
> Cc: Zhu, Rex
> Subject: [PATCH] drm/amd/powerplay: disable engine spread spectrum
> feature on Vega10.
>
> Vega10 atomfirmware do not have ASIC_InternalSS_Info table
> so disable this feature by default in driver.
>
> Change-Id: I2ef2c668fb41fc6c6f448c7c0f1812baf8e7b375
> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
> ---
> drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> index 8baa890..e24e54c 100644
> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
> @@ -1535,7 +1535,11 @@ static int vega10_populate_single_gfx_level(struct
> pp_hwmgr *hwmgr,
> current_gfxclk_level->FbMult =
> cpu_to_le32(dividers.ulPll_fb_mult);
> /* Spread FB Multiplier bit: bit 0:8 int, bit 31:16 frac */
> - current_gfxclk_level->SsOn = dividers.ucPll_ss_enable;
> + if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
> +
> PHM_PlatformCaps_EngineSpreadSpectrumSupport))
> + current_gfxclk_level->SsOn = dividers.ucPll_ss_enable;
> + else
> + current_gfxclk_level->SsOn = 0;
> current_gfxclk_level->SsFbMult =
> cpu_to_le32(dividers.ulPll_ss_fbsmult);
> current_gfxclk_level->SsSlewFrac =
> --
> 1.9.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 3+ messages in thread
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2017-05-04 3:33 [PATCH] drm/amd/powerplay: disable engine spread spectrum feature on Vega10 Rex Zhu
[not found] ` <1493868804-794-1-git-send-email-Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
2017-05-04 3:48 ` Wang, Ken
2017-05-04 3:52 ` Deucher, Alexander
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