From: "Zhu, Rex" <Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
To: Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "Deucher,
Alexander" <Alexander.Deucher-5C7GfCeVMHo@public.gmane.org>,
"Quan, Evan" <Evan.Quan-5C7GfCeVMHo@public.gmane.org>,
"amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Subject: Re: [PATCH 3/3] drm/amd/pp: Add gfx power status check support on Rv/Vega12
Date: Thu, 2 Aug 2018 10:22:39 +0000 [thread overview]
Message-ID: <CY4PR12MB1687D8D4388E80BE18A677F8FB2C0@CY4PR12MB1687.namprd12.prod.outlook.com> (raw)
In-Reply-To: <CADnq5_N_BsHR9WCMcZ04wt+jL=6bCB_R=m2w=w+nb_O7Ugnj_w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
[-- Attachment #1.1: Type: text/plain, Size: 7293 bytes --]
Currently, there is no use case except for debug.
So I will keep the patches in my local.
Thanks.
Best Regards
Rex
________________________________
From: Alex Deucher <alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Sent: Wednesday, August 1, 2018 11:13 PM
To: Zhu, Rex
Cc: Deucher, Alexander; Quan, Evan; amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: Re: [PATCH 3/3] drm/amd/pp: Add gfx power status check support on Rv/Vega12
Does anything use it? Might be useful for debugging, but I guess you'd probably use something like umr in that case.
Alex
On Tue, Jul 31, 2018 at 9:15 PM, Zhu, Rex <Rex.Zhu-5C7GfCeVMHo@public.gmane.org<mailto:Rex.Zhu@amd.com>> wrote:
Hi Alex,
Is it necessary to export an interface as "is_gfx_on" in powerplay to amdgpu?
It can show the current power state of gfx ip.
Best Regards
Rex
________________________________
From: amd-gfx <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-bounces@lists.freedesktop.org>> on behalf of Zhu, Rex <Rex.Zhu-5C7GfCeVMHo@public.gmane.org<mailto:Rex.Zhu-5C7GfCeVMHo@public.gmane.org>>
Sent: Monday, July 30, 2018 11:39 AM
To: Quan, Evan; amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-PD4FTy7X32lzq7FAFJ/aeQ@public.gmane.orgtop.org>
Subject: Re: [PATCH 3/3] drm/amd/pp: Add gfx power status check support on Rv/Vega12
> It means user was told the gfx is on but actually it may switches to gfxoff already.
Correct.
So if the gfx is off, user should disable gfx off feature before they read/write the registers via mmio.
if gfx is on, that is not mean the gfx off feature is disabled. it doesn't mean it is safe to visit the registers through mmio.
Best Regards
Rex
________________________________
From: Quan, Evan
Sent: Monday, July 30, 2018 9:31 AM
To: Zhu, Rex; amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9w@public.gmane.orgp.org>
Subject: Re: [PATCH 3/3] drm/amd/pp: Add gfx power status check support on Rv/Vega12
Since the gfxoff is always in dynamic switch, i do not think the status reported to user is reliable. It means user was told the gfx is on but actually it may switches to gfxoff already.
Regards,
Evan
________________________________
From: amd-gfx <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-bounces@lists.freedesktop.org>> on behalf of Rex Zhu <rex.zhu-5C7GfCeVMHo@public.gmane.org<mailto:rex.zhu-5C7GfCeVMHo@public.gmane.org>>
Sent: Sunday, July 29, 2018 7:42:27 PM
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Cc: Zhu, Rex
Subject: [PATCH 3/3] drm/amd/pp: Add gfx power status check support on Rv/Vega12
As gfx off is supported on Rv/Vega12, so this check is
helpful and necessary when visit gfx regesiter via mmio.
Signed-off-by: Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org<mailto:Rex.Zhu-5C7GfCeVMHo@public.gmane.org>>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 10 +++++++
drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c | 31 +++++++++++++++++++++-
2 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 26d130a..da1be82 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -296,6 +296,15 @@ static bool smu10_is_gfx_on(struct pp_hwmgr *hwmgr)
return false;
}
+static bool smu10_is_hw_ip_on(struct pp_hwmgr *hwmgr,
+ enum amd_ip_block_type client)
+{
+ if (client == AMD_IP_BLOCK_TYPE_GFX)
+ return smu10_is_gfx_on(hwmgr);
+ else /* for other ip, to do */
+ return true;
+}
+
static int smu10_disable_gfx_off(struct pp_hwmgr *hwmgr)
{
struct smu10_hwmgr *smu10_data = (struct smu10_hwmgr *)(hwmgr->backend);
@@ -1187,6 +1196,7 @@ static void smu10_powergate_vcn(struct pp_hwmgr *hwmgr, bool bgate)
.smus_notify_pwe = smu10_smus_notify_pwe,
.display_clock_voltage_request = smu10_display_clock_voltage_request,
.powergate_gfx = smu10_gfx_off_control,
+ .is_hw_ip_on = smu10_is_hw_ip_on,
};
int smu10_init_function_pointers(struct pp_hwmgr *hwmgr)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
index 0789d64..ee44300 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega12_hwmgr.c
@@ -45,7 +45,7 @@
#include "ppinterrupt.h"
#include "pp_overdriver.h"
#include "pp_thermal.h"
-
+#include "soc15_common.h"
static int vega12_force_clock_level(struct pp_hwmgr *hwmgr,
enum pp_clock_type type, uint32_t mask);
@@ -2320,6 +2320,34 @@ static int vega12_get_thermal_temperature_range(struct pp_hwmgr *hwmgr,
return 0;
}
+/* GFX HW Power Status can be queried from bits [1:0] of MP1_SMN_EXT_SCRATCH0
+ * 2'b00 GFX is OFF
+ * 2'b01 Transitioning out of GFXOFF state
+ * 2'b10 GFX is ON
+ * 2'b11 Transitioning into GFXOFF state
+*/
+
+static bool vega12_is_gfx_on(struct pp_hwmgr *hwmgr)
+{
+ uint32_t tmp;
+ struct amdgpu_device *adev = hwmgr->adev;
+
+ tmp = RREG32_SOC15(MP1, 0, mmMP1_SMN_EXT_SCRATCH0);
+ if (tmp == 1 || tmp == 2)
+ return true;
+ else
+ return false;
+}
+
+static bool vega12_is_hw_ip_on(struct pp_hwmgr *hwmgr,
+ enum amd_ip_block_type client)
+{
+ if (client == AMD_IP_BLOCK_TYPE_GFX)
+ return vega12_is_gfx_on(hwmgr);
+ else /* for other ip, to do */
+ return true;
+}
+
static int vega12_enable_gfx_off(struct pp_hwmgr *hwmgr)
{
struct vega12_hwmgr *data =
@@ -2402,6 +2430,7 @@ static int vega12_gfx_off_control(struct pp_hwmgr *hwmgr, bool enable)
.register_irq_handlers = smu9_register_irq_handlers,
.start_thermal_controller = vega12_start_thermal_controller,
.powergate_gfx = vega12_gfx_off_control,
+ .is_hw_ip_on = vega12_is_hw_ip_on,
};
int vega12_hwmgr_init(struct pp_hwmgr *hwmgr)
--
1.9.1
_______________________________________________
amd-gfx mailing list
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
amd-gfx Info Page - freedesktop.org<https://lists.freedesktop.org/mailman/listinfo/amd-gfx>
lists.freedesktop.org<http://lists.freedesktop.org>
Subscribing to amd-gfx: Subscribe to amd-gfx by filling out the following form. Use of all freedesktop.org<http://freedesktop.org> lists is subject to our Code of Conduct.
_______________________________________________
amd-gfx mailing list
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
[-- Attachment #1.2: Type: text/html, Size: 17244 bytes --]
[-- Attachment #2: Type: text/plain, Size: 154 bytes --]
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next prev parent reply other threads:[~2018-08-02 10:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-29 11:42 [PATCH 1/3] drm/amd/pp: Delete duplicated interface in hwmgr_func Rex Zhu
[not found] ` <1532864547-1072-1-git-send-email-rex.zhu-5C7GfCeVMHo@public.gmane.org>
2018-07-29 11:42 ` [PATCH 2/3] drm/amd/pp: Export interface to help check hw power state Rex Zhu
2018-07-29 11:42 ` [PATCH 3/3] drm/amd/pp: Add gfx power status check support on Rv/Vega12 Rex Zhu
[not found] ` <1532864547-1072-3-git-send-email-rex.zhu-5C7GfCeVMHo@public.gmane.org>
2018-07-30 1:31 ` Quan, Evan
[not found] ` <SN6PR12MB2656D918D6DBD7C1932747BFE42F0-kxOKjb6HO/FeL/N0e1LXkAdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-07-30 3:39 ` Zhu, Rex
[not found] ` <CY4PR12MB1687B6284781F05DDD30ACA6FB2F0-rpdhrqHFk06Y0SjTqZDccQdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-08-01 1:15 ` Zhu, Rex
[not found] ` <CY4PR12MB168799400EFB54D63F9EAE6CFB2D0-rpdhrqHFk06Y0SjTqZDccQdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-08-01 15:13 ` Alex Deucher
[not found] ` <CADnq5_N_BsHR9WCMcZ04wt+jL=6bCB_R=m2w=w+nb_O7Ugnj_w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-08-02 10:22 ` Zhu, Rex [this message]
[not found] ` <CY4PR12MB1687D8D4388E80BE18A677F8FB2C0-rpdhrqHFk06Y0SjTqZDccQdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-08-02 13:38 ` Alex Deucher
2018-07-30 1:27 ` [PATCH 1/3] drm/amd/pp: Delete duplicated interface in hwmgr_func Quan, Evan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CY4PR12MB1687D8D4388E80BE18A677F8FB2C0@CY4PR12MB1687.namprd12.prod.outlook.com \
--to=rex.zhu-5c7gfcevmho@public.gmane.org \
--cc=Alexander.Deucher-5C7GfCeVMHo@public.gmane.org \
--cc=Evan.Quan-5C7GfCeVMHo@public.gmane.org \
--cc=alexdeucher-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.