[PATCH] drm/i915: Show dmc debug registers on Kabylake

[PATCH] drm/i915: Show dmc debug registers on Kabylake

[Mika Kuoppala]

The assumption is that the registers offsets are
identical as with skl. Also all the published
kbl firmwares support the debug registers. So
let kbl show the debug counts.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100975
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 1003511..34785fb 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2853,7 +2853,8 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
 	seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
 		   CSR_VERSION_MINOR(csr->version));
 
-	if (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6)) {
+	if (IS_KABYLAKE(dev_priv) ||
+	    (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6))) {
 		seq_printf(m, "DC3 -> DC5 count: %d\n",
 			   I915_READ(SKL_CSR_DC3_DC5_COUNT));
 		seq_printf(m, "DC5 -> DC6 count: %d\n",
-- 
2.7.4

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Re: [PATCH] drm/i915: Show dmc debug registers on Kabylake

[Imre Deak]

On Tue, May 09, 2017 at 01:05:22PM +0300, Mika Kuoppala wrote:
> The assumption is that the registers offsets are
> identical as with skl. Also all the published
> kbl firmwares support the debug registers. So
> let kbl show the debug counts.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100975
> Cc: Imre Deak <imre.deak@intel.com>
> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>

Reviewed-by: Imre Deak <imre.deak@intel.com>

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 1003511..34785fb 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2853,7 +2853,8 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
>  	seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
>  		   CSR_VERSION_MINOR(csr->version));
>  
> -	if (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6)) {
> +	if (IS_KABYLAKE(dev_priv) ||
> +	    (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6))) {
>  		seq_printf(m, "DC3 -> DC5 count: %d\n",
>  			   I915_READ(SKL_CSR_DC3_DC5_COUNT));
>  		seq_printf(m, "DC5 -> DC6 count: %d\n",
> -- 
> 2.7.4
> 
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✓ Fi.CI.BAT: success for drm/i915: Show dmc debug registers on Kabylake

[Patchwork]

== Series Details ==

Series: drm/i915: Show dmc debug registers on Kabylake
URL   : https://patchwork.freedesktop.org/series/24171/
State : success

== Summary ==

Series 24171v1 drm/i915: Show dmc debug registers on Kabylake
https://patchwork.freedesktop.org/api/1.0/series/24171/revisions/1/mbox/

Test gem_exec_suspend:
        Subgroup basic-s4-devices:
                pass       -> DMESG-WARN (fi-kbl-7560u) fdo#100125
Test kms_flip:
        Subgroup basic-flip-vs-modeset:
                dmesg-warn -> PASS       (fi-byt-j1900) fdo#100652

fdo#100125 https://bugs.freedesktop.org/show_bug.cgi?id=100125
fdo#100652 https://bugs.freedesktop.org/show_bug.cgi?id=100652

fi-bdw-5557u     total:278  pass:267  dwarn:0   dfail:0   fail:0   skip:11  time:429s
fi-bdw-gvtdvm    total:278  pass:256  dwarn:8   dfail:0   fail:0   skip:14  time:432s
fi-bsw-n3050     total:278  pass:242  dwarn:0   dfail:0   fail:0   skip:36  time:576s
fi-bxt-t5700     total:278  pass:258  dwarn:0   dfail:0   fail:0   skip:20  time:543s
fi-byt-j1900     total:278  pass:254  dwarn:0   dfail:0   fail:0   skip:24  time:487s
fi-byt-n2820     total:278  pass:250  dwarn:0   dfail:0   fail:0   skip:28  time:480s
fi-elk-e7500     total:278  pass:229  dwarn:0   dfail:0   fail:0   skip:49  time:409s
fi-hsw-4770      total:278  pass:262  dwarn:0   dfail:0   fail:0   skip:16  time:415s
fi-hsw-4770r     total:278  pass:262  dwarn:0   dfail:0   fail:0   skip:16  time:407s
fi-ilk-650       total:278  pass:228  dwarn:0   dfail:0   fail:0   skip:50  time:416s
fi-ivb-3520m     total:278  pass:260  dwarn:0   dfail:0   fail:0   skip:18  time:480s
fi-ivb-3770      total:278  pass:260  dwarn:0   dfail:0   fail:0   skip:18  time:469s
fi-kbl-7500u     total:278  pass:260  dwarn:0   dfail:0   fail:0   skip:18  time:456s
fi-kbl-7560u     total:278  pass:267  dwarn:1   dfail:0   fail:0   skip:10  time:577s
fi-skl-6260u     total:278  pass:268  dwarn:0   dfail:0   fail:0   skip:10  time:462s
fi-skl-6700hq    total:278  pass:261  dwarn:0   dfail:0   fail:0   skip:17  time:572s
fi-skl-6700k     total:278  pass:256  dwarn:4   dfail:0   fail:0   skip:18  time:457s
fi-skl-6770hq    total:278  pass:268  dwarn:0   dfail:0   fail:0   skip:10  time:497s
fi-skl-gvtdvm    total:278  pass:265  dwarn:0   dfail:0   fail:0   skip:13  time:434s
fi-snb-2520m     total:278  pass:250  dwarn:0   dfail:0   fail:0   skip:28  time:524s
fi-snb-2600      total:278  pass:249  dwarn:0   dfail:0   fail:0   skip:29  time:401s
fi-bxt-j4205 failed to collect. IGT log at Patchwork_4646/fi-bxt-j4205/igt.log

f558b185c57202d90bdb9059f3d446956cbae133 drm-tip: 2017y-05m-08d-16h-35m-28s UTC integration manifest
c085756 drm/i915: Show dmc debug registers on Kabylake

== Logs ==

For more details see: https://intel-gfx-ci.01.org/CI/Patchwork_4646/
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Re: [PATCH] drm/i915: Show dmc debug registers on Kabylake

[Mika Kuoppala]

Imre Deak <imre.deak@intel.com> writes:

> On Tue, May 09, 2017 at 01:05:22PM +0300, Mika Kuoppala wrote:
>> The assumption is that the registers offsets are
>> identical as with skl. Also all the published
>> kbl firmwares support the debug registers. So
>> let kbl show the debug counts.
>> 
>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100975
>> Cc: Imre Deak <imre.deak@intel.com>
>> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
>
> Reviewed-by: Imre Deak <imre.deak@intel.com>

Pushed. Thanks for review!
-Mika


>
>> ---
>>  drivers/gpu/drm/i915/i915_debugfs.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>> 
>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
>> index 1003511..34785fb 100644
>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> @@ -2853,7 +2853,8 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
>>  	seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
>>  		   CSR_VERSION_MINOR(csr->version));
>>  
>> -	if (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6)) {
>> +	if (IS_KABYLAKE(dev_priv) ||
>> +	    (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6))) {
>>  		seq_printf(m, "DC3 -> DC5 count: %d\n",
>>  			   I915_READ(SKL_CSR_DC3_DC5_COUNT));
>>  		seq_printf(m, "DC5 -> DC6 count: %d\n",
>> -- 
>> 2.7.4
>> 
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Re: [PATCH] drm/i915: Show dmc debug registers on Kabylake

[Mika Kuoppala]

Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com> writes:

> On Tue, May 09, 2017 at 04:16:12PM +0300, Mika Kuoppala wrote:
>> Imre Deak <imre.deak@intel.com> writes:
>> 
>> > On Tue, May 09, 2017 at 01:05:22PM +0300, Mika Kuoppala wrote:
>> >> The assumption is that the registers offsets are
>> >> identical as with skl. Also all the published
>> >> kbl firmwares support the debug registers. So
>> >> let kbl show the debug counts.
>> >> 
>> >> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100975
>> >> Cc: Imre Deak <imre.deak@intel.com>
>> >> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
>> >
>> > Reviewed-by: Imre Deak <imre.deak@intel.com>
>> 
>> Pushed. Thanks for review!
>> -Mika
> Mika, the initial version of the KBL DMC firmware is 1.01 so
> because CSR_VERSION is checking for >1.6 this will

I am quite certain that it checks the version only with skl.
-Mika

> still not work. See Rodrigo's original patch that added it to
> linux-firmware:
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=9facc31d772a3ed399760d2168d644f9de84d6db
>> 
>> 
>> >
>> >> ---
>> >>  drivers/gpu/drm/i915/i915_debugfs.c | 3 ++-
>> >>  1 file changed, 2 insertions(+), 1 deletion(-)
>> >> 
>> >> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
>> >> index 1003511..34785fb 100644
>> >> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> >> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> >> @@ -2853,7 +2853,8 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
>> >>  	seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
>> >>  		   CSR_VERSION_MINOR(csr->version));
>> >>  
>> >> -	if (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6)) {
>> >> +	if (IS_KABYLAKE(dev_priv) ||
>> >> +	    (IS_SKYLAKE(dev_priv) && csr->version >= CSR_VERSION(1, 6))) {
>> >>  		seq_printf(m, "DC3 -> DC5 count: %d\n",
>> >>  			   I915_READ(SKL_CSR_DC3_DC5_COUNT));
>> >>  		seq_printf(m, "DC5 -> DC6 count: %d\n",
>> >> -- 
>> >> 2.7.4
>> >> 
>> _______________________________________________
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