[Intel-gfx] [PATCH 00/12] drm/i915: Add CSC state readout/check

[Intel-gfx] [PATCH 00/12] drm/i915: Add CSC state readout/check

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Implement state readout/check for the various CSC units
we utilize.

Ville Syrjälä (12):
  drm/i915: Fix limited range csc matrix
  drm/i915: Introduce intel_csc_matrix struct
  drm/i915: Split chv_load_cgm_csc() into pieces
  drm/i915: Start using struct intel_csc_matrix for chv cgm csc
  drm/i915: Store ilk+ csc matrices in the crtc state
  drm/i915: Utilize crtc_state->csc on chv
  drm/i915: Sprinke a few sanity check WARNS during csc assignment
  drm/i915: Add hardware csc readout for ilk+
  drm/i915: Implement chv cgm csc readout
  drm/i915: Include the csc matrices in the crtc state dump
  drm/i915: Hook up csc into state checker
  drm/i915: Do state check for color management changes

 drivers/gpu/drm/i915/display/intel_color.c    | 484 +++++++++++++-----
 .../drm/i915/display/intel_crtc_state_dump.c  |  43 ++
 drivers/gpu/drm/i915/display/intel_display.c  |  27 +
 .../drm/i915/display/intel_display_types.h    |   8 +
 .../drm/i915/display/intel_modeset_verify.c   |   2 +
 5 files changed, 441 insertions(+), 123 deletions(-)

-- 
2.39.2

[Intel-gfx] [PATCH 01/12] drm/i915: Fix limited range csc matrix

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Our current limited range matrix is a bit off. I think it
was originally calculated with rounding, as if we wanted
the normal pixel replication type of behaviour.
That is, since the 8bpc max value is 0xeb we assumed the
16bpc max value should be 0xebeb, but what the HDMI spec
actually says it should be is 0xeb00.

So to get what we want we make the formula
 out = in * (235-16) << (12-8) / in_max + 16 << (12-8),
with 12 being precision of the csc, 8 being the precision
of the constants we used.

The hardware takes its coefficients as floating point
values, but the (235−16)/255 = ~.86, so exponent 0
is what we want anyway, so it works out perfectly without
having to hardcode it in hex or start playing with floats.

In terms of raw numbers we are feeding the hardware the
post offset changes from 0x101 to 0x100, and the coefficient
changes from 0xdc0 to 0xdb0 (~.860->~.855). So this should
make everything come out just a tad darker.

I already used better constants in lut_limited_range() earlier
so the output of the two paths should be closer now.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 36aac88143ac..3c3e2f5a5cde 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -116,10 +116,9 @@ struct intel_color_funcs {
 #define ILK_CSC_COEFF_FP(coeff, fbits)	\
 	(clamp_val(((coeff) >> (32 - (fbits) - 3)) + 4, 0, 0xfff) & 0xff8)
 
-#define ILK_CSC_COEFF_LIMITED_RANGE 0x0dc0
 #define ILK_CSC_COEFF_1_0 0x7800
-
-#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 * (1 << 12) / 255)
+#define ILK_CSC_COEFF_LIMITED_RANGE ((235 - 16) << (12 - 8)) /* exponent 0 */
+#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 << (12 - 8))
 
 /* Nop pre/post offsets */
 static const u16 ilk_csc_off_zero[3] = {};
-- 
2.39.2

Re: [Intel-gfx] [PATCH 01/12] drm/i915: Fix limited range csc matrix

[Nautiyal, Ankit K]

Hi Ville,

HDMI1.4b indeed says max value for 16bpc as 60160 (0xeb00)
And black level of 4096.

Got me thinking that we might need to consider bpc for getting the 
Coeffs and the offsets.
IIUC for CSC Full range to Limited range:
out = in * gain  + offset

Gain :
So for 8 bpc, as you have mentioned
multiplier or gain will be: (235-16) / 255 = 0.8588 ~0.86
offset will be 16, as range is from 16-235

16 bpc
Multiplier: (60160-4096)/65535 = 0.8555 ~0.86
Offset for 16bit: should be 4096

So it seems Multiplier of 0.86 should be alright for different bpc, but 
offset would vary.

Also CSC Postoff programming for the offset doesn’t seem very clear to me.
For CSC BT709 RGB Full range->YCbCr Limited Range, we use offset of {16, 
128, 128} for Y, Cb, Cr, and we write 0x800, 0x100, 0x100 for these values.

But below for Limited range Post offset 16,  we seem to be shifting by 
(12 - 8) i.e 4. Am I missing something?


Regards,

Ankit

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Our current limited range matrix is a bit off. I think it
> was originally calculated with rounding, as if we wanted
> the normal pixel replication type of behaviour.
> That is, since the 8bpc max value is 0xeb we assumed the
> 16bpc max value should be 0xebeb, but what the HDMI spec
> actually says it should be is 0xeb00.
>
> So to get what we want we make the formula
>   out = in * (235-16) << (12-8) / in_max + 16 << (12-8),
> with 12 being precision of the csc, 8 being the precision
> of the constants we used.
>
> The hardware takes its coefficients as floating point
> values, but the (235−16)/255 = ~.86, so exponent 0
> is what we want anyway, so it works out perfectly without
> having to hardcode it in hex or start playing with floats.
>
> In terms of raw numbers we are feeding the hardware the
> post offset changes from 0x101 to 0x100, and the coefficient
> changes from 0xdc0 to 0xdb0 (~.860->~.855). So this should
> make everything come out just a tad darker.
>
> I already used better constants in lut_limited_range() earlier
> so the output of the two paths should be closer now.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index 36aac88143ac..3c3e2f5a5cde 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -116,10 +116,9 @@ struct intel_color_funcs {
>   #define ILK_CSC_COEFF_FP(coeff, fbits)	\
>   	(clamp_val(((coeff) >> (32 - (fbits) - 3)) + 4, 0, 0xfff) & 0xff8)
>   
> -#define ILK_CSC_COEFF_LIMITED_RANGE 0x0dc0
>   #define ILK_CSC_COEFF_1_0 0x7800
> -
> -#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 * (1 << 12) / 255)
> +#define ILK_CSC_COEFF_LIMITED_RANGE ((235 - 16) << (12 - 8)) /* exponent 0 */
> +#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 << (12 - 8))
>   
>   /* Nop pre/post offsets */
>   static const u16 ilk_csc_off_zero[3] = {};

Re: [Intel-gfx] [PATCH 01/12] drm/i915: Fix limited range csc matrix

[Ville Syrjälä]

On Thu, Apr 06, 2023 at 04:26:48PM +0530, Nautiyal, Ankit K wrote:
> Hi Ville,
> 
> HDMI1.4b indeed says max value for 16bpc as 60160 (0xeb00)
> And black level of 4096.
> 
> Got me thinking that we might need to consider bpc for getting the 
> Coeffs and the offsets.
> IIUC for CSC Full range to Limited range:
> out = in * gain  + offset
> 
> Gain :
> So for 8 bpc, as you have mentioned
> multiplier or gain will be: (235-16) / 255 = 0.8588 ~0.86
> offset will be 16, as range is from 16-235
> 
> 16 bpc
> Multiplier: (60160-4096)/65535 = 0.8555 ~0.86
> Offset for 16bit: should be 4096
> 
> So it seems Multiplier of 0.86 should be alright for different bpc, but 
> offset would vary.

It's all still in the pipe's internal precision. So any 16 vs. 4096
distinction doesn't exist.

> 
> Also CSC Postoff programming for the offset doesn’t seem very clear to me.
> For CSC BT709 RGB Full range->YCbCr Limited Range, we use offset of {16, 
> 128, 128} for Y, Cb, Cr, and we write 0x800, 0x100, 0x100 for these values.

Y is the middle channel. We write 0x800,0x100,0x800

> 
> But below for Limited range Post offset 16,  we seem to be shifting by 
> (12 - 8) i.e 4. Am I missing something?
> 
> 
> Regards,
> 
> Ankit
> 
> On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > Our current limited range matrix is a bit off. I think it
> > was originally calculated with rounding, as if we wanted
> > the normal pixel replication type of behaviour.
> > That is, since the 8bpc max value is 0xeb we assumed the
> > 16bpc max value should be 0xebeb, but what the HDMI spec
> > actually says it should be is 0xeb00.
> >
> > So to get what we want we make the formula
> >   out = in * (235-16) << (12-8) / in_max + 16 << (12-8),
> > with 12 being precision of the csc, 8 being the precision
> > of the constants we used.
> >
> > The hardware takes its coefficients as floating point
> > values, but the (235−16)/255 = ~.86, so exponent 0
> > is what we want anyway, so it works out perfectly without
> > having to hardcode it in hex or start playing with floats.
> >
> > In terms of raw numbers we are feeding the hardware the
> > post offset changes from 0x101 to 0x100, and the coefficient
> > changes from 0xdc0 to 0xdb0 (~.860->~.855). So this should
> > make everything come out just a tad darker.
> >
> > I already used better constants in lut_limited_range() earlier
> > so the output of the two paths should be closer now.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > ---
> >   drivers/gpu/drm/i915/display/intel_color.c | 5 ++---
> >   1 file changed, 2 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> > index 36aac88143ac..3c3e2f5a5cde 100644
> > --- a/drivers/gpu/drm/i915/display/intel_color.c
> > +++ b/drivers/gpu/drm/i915/display/intel_color.c
> > @@ -116,10 +116,9 @@ struct intel_color_funcs {
> >   #define ILK_CSC_COEFF_FP(coeff, fbits)	\
> >   	(clamp_val(((coeff) >> (32 - (fbits) - 3)) + 4, 0, 0xfff) & 0xff8)
> >   
> > -#define ILK_CSC_COEFF_LIMITED_RANGE 0x0dc0
> >   #define ILK_CSC_COEFF_1_0 0x7800
> > -
> > -#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 * (1 << 12) / 255)
> > +#define ILK_CSC_COEFF_LIMITED_RANGE ((235 - 16) << (12 - 8)) /* exponent 0 */
> > +#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 << (12 - 8))
> >   
> >   /* Nop pre/post offsets */
> >   static const u16 ilk_csc_off_zero[3] = {};

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH 01/12] drm/i915: Fix limited range csc matrix

[Nautiyal, Ankit K]

On 4/6/2023 4:40 PM, Ville Syrjälä wrote:
> On Thu, Apr 06, 2023 at 04:26:48PM +0530, Nautiyal, Ankit K wrote:
>> Hi Ville,
>>
>> HDMI1.4b indeed says max value for 16bpc as 60160 (0xeb00)
>> And black level of 4096.
>>
>> Got me thinking that we might need to consider bpc for getting the
>> Coeffs and the offsets.
>> IIUC for CSC Full range to Limited range:
>> out = in * gain  + offset
>>
>> Gain :
>> So for 8 bpc, as you have mentioned
>> multiplier or gain will be: (235-16) / 255 = 0.8588 ~0.86
>> offset will be 16, as range is from 16-235
>>
>> 16 bpc
>> Multiplier: (60160-4096)/65535 = 0.8555 ~0.86
>> Offset for 16bit: should be 4096
>>
>> So it seems Multiplier of 0.86 should be alright for different bpc, but
>> offset would vary.
> It's all still in the pipe's internal precision. So any 16 vs. 4096
> distinction doesn't exist.

Hmm alright.


>> Also CSC Postoff programming for the offset doesn’t seem very clear to me.
>> For CSC BT709 RGB Full range->YCbCr Limited Range, we use offset of {16,
>> 128, 128} for Y, Cb, Cr, and we write 0x800, 0x100, 0x100 for these values.
> Y is the middle channel. We write 0x800,0x100,0x800

Ah ok.. so offset of 16 is indeed 0x100, and not 0x800. (facepalm) I 
misread and created unnecessary confusion.

Thanks for your patience to clear the confusion.


Changes to coeff and offset seem to be correct now.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

>
>> But below for Limited range Post offset 16,  we seem to be shifting by
>> (12 - 8) i.e 4. Am I missing something?
>>
>>
>> Regards,
>>
>> Ankit
>>
>> On 3/29/2023 7:19 PM, Ville Syrjala wrote:
>>> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>>>
>>> Our current limited range matrix is a bit off. I think it
>>> was originally calculated with rounding, as if we wanted
>>> the normal pixel replication type of behaviour.
>>> That is, since the 8bpc max value is 0xeb we assumed the
>>> 16bpc max value should be 0xebeb, but what the HDMI spec
>>> actually says it should be is 0xeb00.
>>>
>>> So to get what we want we make the formula
>>>    out = in * (235-16) << (12-8) / in_max + 16 << (12-8),
>>> with 12 being precision of the csc, 8 being the precision
>>> of the constants we used.
>>>
>>> The hardware takes its coefficients as floating point
>>> values, but the (235−16)/255 = ~.86, so exponent 0
>>> is what we want anyway, so it works out perfectly without
>>> having to hardcode it in hex or start playing with floats.
>>>
>>> In terms of raw numbers we are feeding the hardware the
>>> post offset changes from 0x101 to 0x100, and the coefficient
>>> changes from 0xdc0 to 0xdb0 (~.860->~.855). So this should
>>> make everything come out just a tad darker.
>>>
>>> I already used better constants in lut_limited_range() earlier
>>> so the output of the two paths should be closer now.
>>>
>>> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
>>> ---
>>>    drivers/gpu/drm/i915/display/intel_color.c | 5 ++---
>>>    1 file changed, 2 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
>>> index 36aac88143ac..3c3e2f5a5cde 100644
>>> --- a/drivers/gpu/drm/i915/display/intel_color.c
>>> +++ b/drivers/gpu/drm/i915/display/intel_color.c
>>> @@ -116,10 +116,9 @@ struct intel_color_funcs {
>>>    #define ILK_CSC_COEFF_FP(coeff, fbits)	\
>>>    	(clamp_val(((coeff) >> (32 - (fbits) - 3)) + 4, 0, 0xfff) & 0xff8)
>>>    
>>> -#define ILK_CSC_COEFF_LIMITED_RANGE 0x0dc0
>>>    #define ILK_CSC_COEFF_1_0 0x7800
>>> -
>>> -#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 * (1 << 12) / 255)
>>> +#define ILK_CSC_COEFF_LIMITED_RANGE ((235 - 16) << (12 - 8)) /* exponent 0 */
>>> +#define ILK_CSC_POSTOFF_LIMITED_RANGE (16 << (12 - 8))
>>>    
>>>    /* Nop pre/post offsets */
>>>    static const u16 ilk_csc_off_zero[3] = {};

[Intel-gfx] [PATCH 02/12] drm/i915: Introduce intel_csc_matrix struct

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Introduce a structure that can hold our CSC matrices. In there
we shall have the preoffsets, postoffsets, and coefficients,
all in platform specific format (at least for now).

We shall start by converting the ilk+ code to make use of
the new structure. chv will come later.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c    | 188 +++++++++---------
 .../drm/i915/display/intel_display_types.h    |   6 +
 2 files changed, 97 insertions(+), 97 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 3c3e2f5a5cde..b1059e0c0665 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -120,40 +120,42 @@ struct intel_color_funcs {
 #define ILK_CSC_COEFF_LIMITED_RANGE ((235 - 16) << (12 - 8)) /* exponent 0 */
 #define ILK_CSC_POSTOFF_LIMITED_RANGE (16 << (12 - 8))
 
-/* Nop pre/post offsets */
-static const u16 ilk_csc_off_zero[3] = {};
-
-/* Identity matrix */
-static const u16 ilk_csc_coeff_identity[9] = {
-	ILK_CSC_COEFF_1_0, 0, 0,
-	0, ILK_CSC_COEFF_1_0, 0,
-	0, 0, ILK_CSC_COEFF_1_0,
-};
-
-/* Limited range RGB post offsets */
-static const u16 ilk_csc_postoff_limited_range[3] = {
-	ILK_CSC_POSTOFF_LIMITED_RANGE,
-	ILK_CSC_POSTOFF_LIMITED_RANGE,
-	ILK_CSC_POSTOFF_LIMITED_RANGE,
+static const struct intel_csc_matrix ilk_csc_matrix_identity = {
+	.preoff = {},
+	.coeff = {
+		ILK_CSC_COEFF_1_0, 0, 0,
+		0, ILK_CSC_COEFF_1_0, 0,
+		0, 0, ILK_CSC_COEFF_1_0,
+	},
+	.postoff = {},
 };
 
 /* Full range RGB -> limited range RGB matrix */
-static const u16 ilk_csc_coeff_limited_range[9] = {
-	ILK_CSC_COEFF_LIMITED_RANGE, 0, 0,
-	0, ILK_CSC_COEFF_LIMITED_RANGE, 0,
-	0, 0, ILK_CSC_COEFF_LIMITED_RANGE,
+static const struct intel_csc_matrix ilk_csc_matrix_limited_range = {
+	.preoff = {},
+	.coeff = {
+		ILK_CSC_COEFF_LIMITED_RANGE, 0, 0,
+		0, ILK_CSC_COEFF_LIMITED_RANGE, 0,
+		0, 0, ILK_CSC_COEFF_LIMITED_RANGE,
+	},
+	.postoff = {
+		ILK_CSC_POSTOFF_LIMITED_RANGE,
+		ILK_CSC_POSTOFF_LIMITED_RANGE,
+		ILK_CSC_POSTOFF_LIMITED_RANGE,
+	},
 };
 
 /* BT.709 full range RGB -> limited range YCbCr matrix */
-static const u16 ilk_csc_coeff_rgb_to_ycbcr[9] = {
-	0x1e08, 0x9cc0, 0xb528,
-	0x2ba8, 0x09d8, 0x37e8,
-	0xbce8, 0x9ad8, 0x1e08,
-};
-
-/* Limited range YCbCr post offsets */
-static const u16 ilk_csc_postoff_rgb_to_ycbcr[3] = {
-	0x0800, 0x0100, 0x0800,
+static const struct intel_csc_matrix ilk_csc_matrix_rgb_to_ycbcr = {
+	.preoff = {},
+	.coeff = {
+		0x1e08, 0x9cc0, 0xb528,
+		0x2ba8, 0x09d8, 0x37e8,
+		0xbce8, 0x9ad8, 0x1e08,
+	},
+	.postoff = {
+		0x0800, 0x0100, 0x0800,
+	},
 };
 
 static bool lut_is_legacy(const struct drm_property_blob *lut)
@@ -188,69 +190,66 @@ static u64 *ctm_mult_by_limited(u64 *result, const u64 *input)
 }
 
 static void ilk_update_pipe_csc(struct intel_crtc *crtc,
-				const u16 preoff[3],
-				const u16 coeff[9],
-				const u16 postoff[3])
+				const struct intel_csc_matrix *csc)
 {
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	enum pipe pipe = crtc->pipe;
 
-	intel_de_write_fw(i915, PIPE_CSC_PREOFF_HI(pipe), preoff[0]);
-	intel_de_write_fw(i915, PIPE_CSC_PREOFF_ME(pipe), preoff[1]);
-	intel_de_write_fw(i915, PIPE_CSC_PREOFF_LO(pipe), preoff[2]);
+	intel_de_write_fw(i915, PIPE_CSC_PREOFF_HI(pipe), csc->preoff[0]);
+	intel_de_write_fw(i915, PIPE_CSC_PREOFF_ME(pipe), csc->preoff[1]);
+	intel_de_write_fw(i915, PIPE_CSC_PREOFF_LO(pipe), csc->preoff[2]);
 
 	intel_de_write_fw(i915, PIPE_CSC_COEFF_RY_GY(pipe),
-			  coeff[0] << 16 | coeff[1]);
-	intel_de_write_fw(i915, PIPE_CSC_COEFF_BY(pipe), coeff[2] << 16);
+			  csc->coeff[0] << 16 | csc->coeff[1]);
+	intel_de_write_fw(i915, PIPE_CSC_COEFF_BY(pipe),
+			  csc->coeff[2] << 16);
 
 	intel_de_write_fw(i915, PIPE_CSC_COEFF_RU_GU(pipe),
-			  coeff[3] << 16 | coeff[4]);
-	intel_de_write_fw(i915, PIPE_CSC_COEFF_BU(pipe), coeff[5] << 16);
+			  csc->coeff[3] << 16 | csc->coeff[4]);
+	intel_de_write_fw(i915, PIPE_CSC_COEFF_BU(pipe),
+			  csc->coeff[5] << 16);
 
 	intel_de_write_fw(i915, PIPE_CSC_COEFF_RV_GV(pipe),
-			  coeff[6] << 16 | coeff[7]);
-	intel_de_write_fw(i915, PIPE_CSC_COEFF_BV(pipe), coeff[8] << 16);
+			  csc->coeff[6] << 16 | csc->coeff[7]);
+	intel_de_write_fw(i915, PIPE_CSC_COEFF_BV(pipe),
+			  csc->coeff[8] << 16);
 
-	if (DISPLAY_VER(i915) >= 7) {
-		intel_de_write_fw(i915, PIPE_CSC_POSTOFF_HI(pipe),
-				  postoff[0]);
-		intel_de_write_fw(i915, PIPE_CSC_POSTOFF_ME(pipe),
-				  postoff[1]);
-		intel_de_write_fw(i915, PIPE_CSC_POSTOFF_LO(pipe),
-				  postoff[2]);
-	}
+	if (DISPLAY_VER(i915) < 7)
+		return;
+
+	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_HI(pipe), csc->postoff[0]);
+	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_ME(pipe), csc->postoff[1]);
+	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_LO(pipe), csc->postoff[2]);
 }
 
 static void icl_update_output_csc(struct intel_crtc *crtc,
-				  const u16 preoff[3],
-				  const u16 coeff[9],
-				  const u16 postoff[3])
+				  const struct intel_csc_matrix *csc)
 {
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	enum pipe pipe = crtc->pipe;
 
-	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_HI(pipe), preoff[0]);
-	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_ME(pipe), preoff[1]);
-	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_LO(pipe), preoff[2]);
+	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_HI(pipe), csc->preoff[0]);
+	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_ME(pipe), csc->preoff[1]);
+	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_LO(pipe), csc->preoff[2]);
 
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_RY_GY(pipe),
-			  coeff[0] << 16 | coeff[1]);
+			  csc->coeff[0] << 16 | csc->coeff[1]);
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_BY(pipe),
-			  coeff[2] << 16);
+			  csc->coeff[2] << 16);
 
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_RU_GU(pipe),
-			  coeff[3] << 16 | coeff[4]);
+			  csc->coeff[3] << 16 | csc->coeff[4]);
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_BU(pipe),
-			  coeff[5] << 16);
+			  csc->coeff[5] << 16);
 
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_RV_GV(pipe),
-			  coeff[6] << 16 | coeff[7]);
+			  csc->coeff[6] << 16 | csc->coeff[7]);
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_BV(pipe),
-			  coeff[8] << 16);
+			  csc->coeff[8] << 16);
 
-	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_HI(pipe), postoff[0]);
-	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_ME(pipe), postoff[1]);
-	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe), postoff[2]);
+	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_HI(pipe), csc->postoff[0]);
+	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_ME(pipe), csc->postoff[1]);
+	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe), csc->postoff[2]);
 }
 
 static bool ilk_limited_range(const struct intel_crtc_state *crtc_state)
@@ -294,13 +293,20 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
 }
 
 static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
-				u16 coeffs[9], bool limited_color_range)
+				struct intel_csc_matrix *csc,
+				bool limited_color_range)
 {
 	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
 	const u64 *input;
 	u64 temp[9];
 	int i;
 
+	/* for preoff/postoff */
+	if (limited_color_range)
+		*csc = ilk_csc_matrix_limited_range;
+	else
+		*csc = ilk_csc_matrix_identity;
+
 	if (limited_color_range)
 		input = ctm_mult_by_limited(temp, ctm->matrix);
 	else
@@ -319,28 +325,28 @@ static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
 		 */
 		abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_4_0 - 1);
 
-		coeffs[i] = 0;
+		csc->coeff[i] = 0;
 
 		/* sign bit */
 		if (CTM_COEFF_NEGATIVE(input[i]))
-			coeffs[i] |= 1 << 15;
+			csc->coeff[i] |= 1 << 15;
 
 		if (abs_coeff < CTM_COEFF_0_125)
-			coeffs[i] |= (3 << 12) |
+			csc->coeff[i] |= (3 << 12) |
 				ILK_CSC_COEFF_FP(abs_coeff, 12);
 		else if (abs_coeff < CTM_COEFF_0_25)
-			coeffs[i] |= (2 << 12) |
+			csc->coeff[i] |= (2 << 12) |
 				ILK_CSC_COEFF_FP(abs_coeff, 11);
 		else if (abs_coeff < CTM_COEFF_0_5)
-			coeffs[i] |= (1 << 12) |
+			csc->coeff[i] |= (1 << 12) |
 				ILK_CSC_COEFF_FP(abs_coeff, 10);
 		else if (abs_coeff < CTM_COEFF_1_0)
-			coeffs[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
+			csc->coeff[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
 		else if (abs_coeff < CTM_COEFF_2_0)
-			coeffs[i] |= (7 << 12) |
+			csc->coeff[i] |= (7 << 12) |
 				ILK_CSC_COEFF_FP(abs_coeff, 8);
 		else
-			coeffs[i] |= (6 << 12) |
+			csc->coeff[i] |= (6 << 12) |
 				ILK_CSC_COEFF_FP(abs_coeff, 7);
 	}
 }
@@ -352,21 +358,15 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 	bool limited_color_range = ilk_csc_limited_range(crtc_state);
 
 	if (crtc_state->hw.ctm) {
-		u16 coeff[9];
+		struct intel_csc_matrix tmp;
 
-		ilk_csc_convert_ctm(crtc_state, coeff, limited_color_range);
-		ilk_update_pipe_csc(crtc, ilk_csc_off_zero, coeff,
-				    limited_color_range ?
-				    ilk_csc_postoff_limited_range :
-				    ilk_csc_off_zero);
+		ilk_csc_convert_ctm(crtc_state, &tmp, limited_color_range);
+
+		ilk_update_pipe_csc(crtc, &tmp);
 	} else if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
-		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
-				    ilk_csc_coeff_rgb_to_ycbcr,
-				    ilk_csc_postoff_rgb_to_ycbcr);
+		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
 	} else if (limited_color_range) {
-		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
-				    ilk_csc_coeff_limited_range,
-				    ilk_csc_postoff_limited_range);
+		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_limited_range);
 	} else if (crtc_state->csc_enable) {
 		/*
 		 * On GLK both pipe CSC and degamma LUT are controlled
@@ -376,9 +376,7 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 		 */
 		drm_WARN_ON(&i915->drm, !IS_GEMINILAKE(i915));
 
-		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
-				    ilk_csc_coeff_identity,
-				    ilk_csc_off_zero);
+		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_identity);
 	}
 }
 
@@ -387,21 +385,17 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
 	if (crtc_state->hw.ctm) {
-		u16 coeff[9];
+		struct intel_csc_matrix tmp;
 
-		ilk_csc_convert_ctm(crtc_state, coeff, false);
-		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
-				    coeff, ilk_csc_off_zero);
+		ilk_csc_convert_ctm(crtc_state, &tmp, false);
+
+		ilk_update_pipe_csc(crtc, &tmp);
 	}
 
 	if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
-		icl_update_output_csc(crtc, ilk_csc_off_zero,
-				      ilk_csc_coeff_rgb_to_ycbcr,
-				      ilk_csc_postoff_rgb_to_ycbcr);
+		icl_update_output_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
 	} else if (crtc_state->limited_color_range) {
-		icl_update_output_csc(crtc, ilk_csc_off_zero,
-				      ilk_csc_coeff_limited_range,
-				      ilk_csc_postoff_limited_range);
+		icl_update_output_csc(crtc, &ilk_csc_matrix_limited_range);
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index ab146b5b68bd..4829399ea700 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -985,6 +985,12 @@ struct intel_link_m_n {
 	u32 link_n;
 };
 
+struct intel_csc_matrix {
+	u16 coeff[9];
+	u16 preoff[3];
+	u16 postoff[3];
+};
+
 struct intel_crtc_state {
 	/*
 	 * uapi (drm) state. This is the software state shown to userspace.
-- 
2.39.2

Re: [Intel-gfx] [PATCH 02/12] drm/i915: Introduce intel_csc_matrix struct

[Nautiyal, Ankit K]

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Introduce a structure that can hold our CSC matrices. In there
> we shall have the preoffsets, postoffsets, and coefficients,
> all in platform specific format (at least for now).
>
> We shall start by converting the ilk+ code to make use of
> the new structure. chv will come later.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c    | 188 +++++++++---------
>   .../drm/i915/display/intel_display_types.h    |   6 +
>   2 files changed, 97 insertions(+), 97 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index 3c3e2f5a5cde..b1059e0c0665 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -120,40 +120,42 @@ struct intel_color_funcs {
>   #define ILK_CSC_COEFF_LIMITED_RANGE ((235 - 16) << (12 - 8)) /* exponent 0 */
>   #define ILK_CSC_POSTOFF_LIMITED_RANGE (16 << (12 - 8))
>   
> -/* Nop pre/post offsets */
> -static const u16 ilk_csc_off_zero[3] = {};
> -
> -/* Identity matrix */
> -static const u16 ilk_csc_coeff_identity[9] = {
> -	ILK_CSC_COEFF_1_0, 0, 0,
> -	0, ILK_CSC_COEFF_1_0, 0,
> -	0, 0, ILK_CSC_COEFF_1_0,
> -};
> -
> -/* Limited range RGB post offsets */
> -static const u16 ilk_csc_postoff_limited_range[3] = {
> -	ILK_CSC_POSTOFF_LIMITED_RANGE,
> -	ILK_CSC_POSTOFF_LIMITED_RANGE,
> -	ILK_CSC_POSTOFF_LIMITED_RANGE,
> +static const struct intel_csc_matrix ilk_csc_matrix_identity = {
> +	.preoff = {},
> +	.coeff = {
> +		ILK_CSC_COEFF_1_0, 0, 0,
> +		0, ILK_CSC_COEFF_1_0, 0,
> +		0, 0, ILK_CSC_COEFF_1_0,
> +	},
> +	.postoff = {},
>   };
>   
>   /* Full range RGB -> limited range RGB matrix */
> -static const u16 ilk_csc_coeff_limited_range[9] = {
> -	ILK_CSC_COEFF_LIMITED_RANGE, 0, 0,
> -	0, ILK_CSC_COEFF_LIMITED_RANGE, 0,
> -	0, 0, ILK_CSC_COEFF_LIMITED_RANGE,
> +static const struct intel_csc_matrix ilk_csc_matrix_limited_range = {
> +	.preoff = {},
> +	.coeff = {
> +		ILK_CSC_COEFF_LIMITED_RANGE, 0, 0,
> +		0, ILK_CSC_COEFF_LIMITED_RANGE, 0,
> +		0, 0, ILK_CSC_COEFF_LIMITED_RANGE,
> +	},
> +	.postoff = {
> +		ILK_CSC_POSTOFF_LIMITED_RANGE,
> +		ILK_CSC_POSTOFF_LIMITED_RANGE,
> +		ILK_CSC_POSTOFF_LIMITED_RANGE,
> +	},
>   };
>   
>   /* BT.709 full range RGB -> limited range YCbCr matrix */
> -static const u16 ilk_csc_coeff_rgb_to_ycbcr[9] = {
> -	0x1e08, 0x9cc0, 0xb528,
> -	0x2ba8, 0x09d8, 0x37e8,
> -	0xbce8, 0x9ad8, 0x1e08,
> -};
> -
> -/* Limited range YCbCr post offsets */
> -static const u16 ilk_csc_postoff_rgb_to_ycbcr[3] = {
> -	0x0800, 0x0100, 0x0800,
> +static const struct intel_csc_matrix ilk_csc_matrix_rgb_to_ycbcr = {
> +	.preoff = {},
> +	.coeff = {
> +		0x1e08, 0x9cc0, 0xb528,
> +		0x2ba8, 0x09d8, 0x37e8,
> +		0xbce8, 0x9ad8, 0x1e08,
> +	},
> +	.postoff = {
> +		0x0800, 0x0100, 0x0800,
> +	},
>   };
>   
>   static bool lut_is_legacy(const struct drm_property_blob *lut)
> @@ -188,69 +190,66 @@ static u64 *ctm_mult_by_limited(u64 *result, const u64 *input)
>   }
>   
>   static void ilk_update_pipe_csc(struct intel_crtc *crtc,
> -				const u16 preoff[3],
> -				const u16 coeff[9],
> -				const u16 postoff[3])
> +				const struct intel_csc_matrix *csc)
>   {
>   	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>   	enum pipe pipe = crtc->pipe;
>   
> -	intel_de_write_fw(i915, PIPE_CSC_PREOFF_HI(pipe), preoff[0]);
> -	intel_de_write_fw(i915, PIPE_CSC_PREOFF_ME(pipe), preoff[1]);
> -	intel_de_write_fw(i915, PIPE_CSC_PREOFF_LO(pipe), preoff[2]);
> +	intel_de_write_fw(i915, PIPE_CSC_PREOFF_HI(pipe), csc->preoff[0]);
> +	intel_de_write_fw(i915, PIPE_CSC_PREOFF_ME(pipe), csc->preoff[1]);
> +	intel_de_write_fw(i915, PIPE_CSC_PREOFF_LO(pipe), csc->preoff[2]);
>   
>   	intel_de_write_fw(i915, PIPE_CSC_COEFF_RY_GY(pipe),
> -			  coeff[0] << 16 | coeff[1]);
> -	intel_de_write_fw(i915, PIPE_CSC_COEFF_BY(pipe), coeff[2] << 16);
> +			  csc->coeff[0] << 16 | csc->coeff[1]);
> +	intel_de_write_fw(i915, PIPE_CSC_COEFF_BY(pipe),
> +			  csc->coeff[2] << 16);
>   
>   	intel_de_write_fw(i915, PIPE_CSC_COEFF_RU_GU(pipe),
> -			  coeff[3] << 16 | coeff[4]);
> -	intel_de_write_fw(i915, PIPE_CSC_COEFF_BU(pipe), coeff[5] << 16);
> +			  csc->coeff[3] << 16 | csc->coeff[4]);
> +	intel_de_write_fw(i915, PIPE_CSC_COEFF_BU(pipe),
> +			  csc->coeff[5] << 16);
>   
>   	intel_de_write_fw(i915, PIPE_CSC_COEFF_RV_GV(pipe),
> -			  coeff[6] << 16 | coeff[7]);
> -	intel_de_write_fw(i915, PIPE_CSC_COEFF_BV(pipe), coeff[8] << 16);
> +			  csc->coeff[6] << 16 | csc->coeff[7]);
> +	intel_de_write_fw(i915, PIPE_CSC_COEFF_BV(pipe),
> +			  csc->coeff[8] << 16);
>   
> -	if (DISPLAY_VER(i915) >= 7) {
> -		intel_de_write_fw(i915, PIPE_CSC_POSTOFF_HI(pipe),
> -				  postoff[0]);
> -		intel_de_write_fw(i915, PIPE_CSC_POSTOFF_ME(pipe),
> -				  postoff[1]);
> -		intel_de_write_fw(i915, PIPE_CSC_POSTOFF_LO(pipe),
> -				  postoff[2]);
> -	}
> +	if (DISPLAY_VER(i915) < 7)
> +		return;
> +
> +	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_HI(pipe), csc->postoff[0]);
> +	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_ME(pipe), csc->postoff[1]);
> +	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_LO(pipe), csc->postoff[2]);
>   }
>   
>   static void icl_update_output_csc(struct intel_crtc *crtc,
> -				  const u16 preoff[3],
> -				  const u16 coeff[9],
> -				  const u16 postoff[3])
> +				  const struct intel_csc_matrix *csc)
>   {
>   	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>   	enum pipe pipe = crtc->pipe;
>   
> -	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_HI(pipe), preoff[0]);
> -	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_ME(pipe), preoff[1]);
> -	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_LO(pipe), preoff[2]);
> +	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_HI(pipe), csc->preoff[0]);
> +	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_ME(pipe), csc->preoff[1]);
> +	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_PREOFF_LO(pipe), csc->preoff[2]);
>   
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_RY_GY(pipe),
> -			  coeff[0] << 16 | coeff[1]);
> +			  csc->coeff[0] << 16 | csc->coeff[1]);
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_BY(pipe),
> -			  coeff[2] << 16);
> +			  csc->coeff[2] << 16);
>   
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_RU_GU(pipe),
> -			  coeff[3] << 16 | coeff[4]);
> +			  csc->coeff[3] << 16 | csc->coeff[4]);
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_BU(pipe),
> -			  coeff[5] << 16);
> +			  csc->coeff[5] << 16);
>   
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_RV_GV(pipe),
> -			  coeff[6] << 16 | coeff[7]);
> +			  csc->coeff[6] << 16 | csc->coeff[7]);
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_COEFF_BV(pipe),
> -			  coeff[8] << 16);
> +			  csc->coeff[8] << 16);
>   
> -	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_HI(pipe), postoff[0]);
> -	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_ME(pipe), postoff[1]);
> -	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe), postoff[2]);
> +	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_HI(pipe), csc->postoff[0]);
> +	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_ME(pipe), csc->postoff[1]);
> +	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe), csc->postoff[2]);
>   }
>   
>   static bool ilk_limited_range(const struct intel_crtc_state *crtc_state)
> @@ -294,13 +293,20 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
>   }
>   
>   static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
> -				u16 coeffs[9], bool limited_color_range)
> +				struct intel_csc_matrix *csc,
> +				bool limited_color_range)
>   {
>   	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
>   	const u64 *input;
>   	u64 temp[9];
>   	int i;
>   
> +	/* for preoff/postoff */
> +	if (limited_color_range)
> +		*csc = ilk_csc_matrix_limited_range;
> +	else
> +		*csc = ilk_csc_matrix_identity;


Lets merge this if block with the below if block, as we are again 
checking limited_color_range.

Otherwise patch looks good to me.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>


> +
>   	if (limited_color_range)
>   		input = ctm_mult_by_limited(temp, ctm->matrix);
>   	else
> @@ -319,28 +325,28 @@ static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
>   		 */
>   		abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_4_0 - 1);
>   
> -		coeffs[i] = 0;
> +		csc->coeff[i] = 0;
>   
>   		/* sign bit */
>   		if (CTM_COEFF_NEGATIVE(input[i]))
> -			coeffs[i] |= 1 << 15;
> +			csc->coeff[i] |= 1 << 15;
>   
>   		if (abs_coeff < CTM_COEFF_0_125)
> -			coeffs[i] |= (3 << 12) |
> +			csc->coeff[i] |= (3 << 12) |
>   				ILK_CSC_COEFF_FP(abs_coeff, 12);
>   		else if (abs_coeff < CTM_COEFF_0_25)
> -			coeffs[i] |= (2 << 12) |
> +			csc->coeff[i] |= (2 << 12) |
>   				ILK_CSC_COEFF_FP(abs_coeff, 11);
>   		else if (abs_coeff < CTM_COEFF_0_5)
> -			coeffs[i] |= (1 << 12) |
> +			csc->coeff[i] |= (1 << 12) |
>   				ILK_CSC_COEFF_FP(abs_coeff, 10);
>   		else if (abs_coeff < CTM_COEFF_1_0)
> -			coeffs[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
> +			csc->coeff[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
>   		else if (abs_coeff < CTM_COEFF_2_0)
> -			coeffs[i] |= (7 << 12) |
> +			csc->coeff[i] |= (7 << 12) |
>   				ILK_CSC_COEFF_FP(abs_coeff, 8);
>   		else
> -			coeffs[i] |= (6 << 12) |
> +			csc->coeff[i] |= (6 << 12) |
>   				ILK_CSC_COEFF_FP(abs_coeff, 7);
>   	}
>   }
> @@ -352,21 +358,15 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   	bool limited_color_range = ilk_csc_limited_range(crtc_state);
>   
>   	if (crtc_state->hw.ctm) {
> -		u16 coeff[9];
> +		struct intel_csc_matrix tmp;
>   
> -		ilk_csc_convert_ctm(crtc_state, coeff, limited_color_range);
> -		ilk_update_pipe_csc(crtc, ilk_csc_off_zero, coeff,
> -				    limited_color_range ?
> -				    ilk_csc_postoff_limited_range :
> -				    ilk_csc_off_zero);
> +		ilk_csc_convert_ctm(crtc_state, &tmp, limited_color_range);
> +
> +		ilk_update_pipe_csc(crtc, &tmp);
>   	} else if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
> -		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
> -				    ilk_csc_coeff_rgb_to_ycbcr,
> -				    ilk_csc_postoff_rgb_to_ycbcr);
> +		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
>   	} else if (limited_color_range) {
> -		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
> -				    ilk_csc_coeff_limited_range,
> -				    ilk_csc_postoff_limited_range);
> +		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_limited_range);
>   	} else if (crtc_state->csc_enable) {
>   		/*
>   		 * On GLK both pipe CSC and degamma LUT are controlled
> @@ -376,9 +376,7 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   		 */
>   		drm_WARN_ON(&i915->drm, !IS_GEMINILAKE(i915));
>   
> -		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
> -				    ilk_csc_coeff_identity,
> -				    ilk_csc_off_zero);
> +		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_identity);
>   	}
>   }
>   
> @@ -387,21 +385,17 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
>   
>   	if (crtc_state->hw.ctm) {
> -		u16 coeff[9];
> +		struct intel_csc_matrix tmp;
>   
> -		ilk_csc_convert_ctm(crtc_state, coeff, false);
> -		ilk_update_pipe_csc(crtc, ilk_csc_off_zero,
> -				    coeff, ilk_csc_off_zero);
> +		ilk_csc_convert_ctm(crtc_state, &tmp, false);
> +
> +		ilk_update_pipe_csc(crtc, &tmp);
>   	}
>   
>   	if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
> -		icl_update_output_csc(crtc, ilk_csc_off_zero,
> -				      ilk_csc_coeff_rgb_to_ycbcr,
> -				      ilk_csc_postoff_rgb_to_ycbcr);
> +		icl_update_output_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
>   	} else if (crtc_state->limited_color_range) {
> -		icl_update_output_csc(crtc, ilk_csc_off_zero,
> -				      ilk_csc_coeff_limited_range,
> -				      ilk_csc_postoff_limited_range);
> +		icl_update_output_csc(crtc, &ilk_csc_matrix_limited_range);
>   	}
>   }
>   
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index ab146b5b68bd..4829399ea700 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -985,6 +985,12 @@ struct intel_link_m_n {
>   	u32 link_n;
>   };
>   
> +struct intel_csc_matrix {
> +	u16 coeff[9];
> +	u16 preoff[3];
> +	u16 postoff[3];
> +};
> +
>   struct intel_crtc_state {
>   	/*
>   	 * uapi (drm) state. This is the software state shown to userspace.

Re: [Intel-gfx] [PATCH 02/12] drm/i915: Introduce intel_csc_matrix struct

[Ville Syrjälä]

> > @@ -294,13 +293,20 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
> >   }
> >   
> >   static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
> > -				u16 coeffs[9], bool limited_color_range)
> > +				struct intel_csc_matrix *csc,
> > +				bool limited_color_range)
> >   {
> >   	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
> >   	const u64 *input;
> >   	u64 temp[9];
> >   	int i;
> >   
> > +	/* for preoff/postoff */
> > +	if (limited_color_range)
> > +		*csc = ilk_csc_matrix_limited_range;
> > +	else
> > +		*csc = ilk_csc_matrix_identity;
> 
> 
> Lets merge this if block with the below if block, as we are again 
> checking limited_color_range.

I considered that, but didn't really like it. Seemed clearner to
first setup the pre/post offsets, and only then deal with the
input matrix.

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH 02/12] drm/i915: Introduce intel_csc_matrix struct

[Nautiyal, Ankit K]

On 4/11/2023 10:37 AM, Ville Syrjälä wrote:
>>> @@ -294,13 +293,20 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
>>>    }
>>>    
>>>    static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
>>> -				u16 coeffs[9], bool limited_color_range)
>>> +				struct intel_csc_matrix *csc,
>>> +				bool limited_color_range)
>>>    {
>>>    	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
>>>    	const u64 *input;
>>>    	u64 temp[9];
>>>    	int i;
>>>    
>>> +	/* for preoff/postoff */
>>> +	if (limited_color_range)
>>> +		*csc = ilk_csc_matrix_limited_range;
>>> +	else
>>> +		*csc = ilk_csc_matrix_identity;
>>
>> Lets merge this if block with the below if block, as we are again
>> checking limited_color_range.
> I considered that, but didn't really like it. Seemed clearner to
> first setup the pre/post offsets, and only then deal with the
> input matrix.

Hmm yeah clubbing the limited range stuff, does jumble up the steps. So 
this seem to be good as is.

Regards,

Ankit

>

[Intel-gfx] [PATCH 03/12] drm/i915: Split chv_load_cgm_csc() into pieces

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Split chv_cgm_csc_convert_ctm() out from chv_load_cgm_csc() so
that we have functions with clear jobs. This is also how the ilk+
code is already structured.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index b1059e0c0665..47af24e64a7e 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -399,16 +399,13 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 	}
 }
 
-static void chv_load_cgm_csc(struct intel_crtc *crtc,
-			     const struct drm_property_blob *blob)
+static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
+				    const struct drm_property_blob *blob)
 {
-	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	const struct drm_color_ctm *ctm = blob->data;
-	enum pipe pipe = crtc->pipe;
-	u16 coeffs[9];
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(coeffs); i++) {
+	for (i = 0; i < 9; i++) {
 		u64 abs_coeff = ((1ULL << 63) - 1) & ctm->matrix[i];
 
 		/* Round coefficient. */
@@ -425,6 +422,16 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
 		coeffs[i] |= ((abs_coeff >> 32) & 7) << 12;
 		coeffs[i] |= (abs_coeff >> 20) & 0xfff;
 	}
+}
+
+static void chv_load_cgm_csc(struct intel_crtc *crtc,
+			     const struct drm_property_blob *blob)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+	u16 coeffs[9];
+
+	chv_cgm_csc_convert_ctm(coeffs, blob);
 
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
 			  coeffs[1] << 16 | coeffs[0]);
-- 
2.39.2

Re: [Intel-gfx] [PATCH 03/12] drm/i915: Split chv_load_cgm_csc() into pieces

[Nautiyal, Ankit K]

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Split chv_cgm_csc_convert_ctm() out from chv_load_cgm_csc() so
> that we have functions with clear jobs. This is also how the ilk+
> code is already structured.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c | 19 +++++++++++++------
>   1 file changed, 13 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index b1059e0c0665..47af24e64a7e 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -399,16 +399,13 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   	}
>   }
>   
> -static void chv_load_cgm_csc(struct intel_crtc *crtc,
> -			     const struct drm_property_blob *blob)
> +static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
> +				    const struct drm_property_blob *blob)
>   {
> -	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>   	const struct drm_color_ctm *ctm = blob->data;
> -	enum pipe pipe = crtc->pipe;
> -	u16 coeffs[9];
>   	int i;
>   
> -	for (i = 0; i < ARRAY_SIZE(coeffs); i++) {
> +	for (i = 0; i < 9; i++) {

Can still use ARRAY_SIZE(coeffs).

In any case the patch looks good to me.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>


>   		u64 abs_coeff = ((1ULL << 63) - 1) & ctm->matrix[i];
>   
>   		/* Round coefficient. */
> @@ -425,6 +422,16 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
>   		coeffs[i] |= ((abs_coeff >> 32) & 7) << 12;
>   		coeffs[i] |= (abs_coeff >> 20) & 0xfff;
>   	}
> +}
> +
> +static void chv_load_cgm_csc(struct intel_crtc *crtc,
> +			     const struct drm_property_blob *blob)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	enum pipe pipe = crtc->pipe;
> +	u16 coeffs[9];
> +
> +	chv_cgm_csc_convert_ctm(coeffs, blob);
>   
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
>   			  coeffs[1] << 16 | coeffs[0]);

Re: [Intel-gfx] [PATCH 03/12] drm/i915: Split chv_load_cgm_csc() into pieces

[Nautiyal, Ankit K]

On 4/6/2023 2:33 PM, Nautiyal, Ankit K wrote:
>
> On 3/29/2023 7:19 PM, Ville Syrjala wrote:
>> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>>
>> Split chv_cgm_csc_convert_ctm() out from chv_load_cgm_csc() so
>> that we have functions with clear jobs. This is also how the ilk+
>> code is already structured.
>>
>> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
>> ---
>>   drivers/gpu/drm/i915/display/intel_color.c | 19 +++++++++++++------
>>   1 file changed, 13 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_color.c 
>> b/drivers/gpu/drm/i915/display/intel_color.c
>> index b1059e0c0665..47af24e64a7e 100644
>> --- a/drivers/gpu/drm/i915/display/intel_color.c
>> +++ b/drivers/gpu/drm/i915/display/intel_color.c
>> @@ -399,16 +399,13 @@ static void icl_load_csc_matrix(const struct 
>> intel_crtc_state *crtc_state)
>>       }
>>   }
>>   -static void chv_load_cgm_csc(struct intel_crtc *crtc,
>> -                 const struct drm_property_blob *blob)
>> +static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
>> +                    const struct drm_property_blob *blob)
>>   {
>> -    struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>>       const struct drm_color_ctm *ctm = blob->data;
>> -    enum pipe pipe = crtc->pipe;
>> -    u16 coeffs[9];
>>       int i;
>>   -    for (i = 0; i < ARRAY_SIZE(coeffs); i++) {
>> +    for (i = 0; i < 9; i++) {
>
> Can still use ARRAY_SIZE(coeffs).

This comment can be ignored.

I realized, we are using 9 throughout to iterate over the coefficients, 
so lets keep it here too.

Patch is good as is.


>
> In any case the patch looks good to me.
>
> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
>
>
>>           u64 abs_coeff = ((1ULL << 63) - 1) & ctm->matrix[i];
>>             /* Round coefficient. */
>> @@ -425,6 +422,16 @@ static void chv_load_cgm_csc(struct intel_crtc 
>> *crtc,
>>           coeffs[i] |= ((abs_coeff >> 32) & 7) << 12;
>>           coeffs[i] |= (abs_coeff >> 20) & 0xfff;
>>       }
>> +}
>> +
>> +static void chv_load_cgm_csc(struct intel_crtc *crtc,
>> +                 const struct drm_property_blob *blob)
>> +{
>> +    struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>> +    enum pipe pipe = crtc->pipe;
>> +    u16 coeffs[9];
>> +
>> +    chv_cgm_csc_convert_ctm(coeffs, blob);
>>         intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
>>                 coeffs[1] << 16 | coeffs[0]);

Re: [Intel-gfx] [PATCH 03/12] drm/i915: Split chv_load_cgm_csc() into pieces

[Ville Syrjälä]

On Thu, Apr 06, 2023 at 02:33:05PM +0530, Nautiyal, Ankit K wrote:
> 
> On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > Split chv_cgm_csc_convert_ctm() out from chv_load_cgm_csc() so
> > that we have functions with clear jobs. This is also how the ilk+
> > code is already structured.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > ---
> >   drivers/gpu/drm/i915/display/intel_color.c | 19 +++++++++++++------
> >   1 file changed, 13 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> > index b1059e0c0665..47af24e64a7e 100644
> > --- a/drivers/gpu/drm/i915/display/intel_color.c
> > +++ b/drivers/gpu/drm/i915/display/intel_color.c
> > @@ -399,16 +399,13 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
> >   	}
> >   }
> >   
> > -static void chv_load_cgm_csc(struct intel_crtc *crtc,
> > -			     const struct drm_property_blob *blob)
> > +static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
> > +				    const struct drm_property_blob *blob)
> >   {
> > -	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> >   	const struct drm_color_ctm *ctm = blob->data;
> > -	enum pipe pipe = crtc->pipe;
> > -	u16 coeffs[9];
> >   	int i;
> >   
> > -	for (i = 0; i < ARRAY_SIZE(coeffs); i++) {
> > +	for (i = 0; i < 9; i++) {
> 
> Can still use ARRAY_SIZE(coeffs).

Nope. Arrays passed to functions are in fact pointers in C.

> 
> In any case the patch looks good to me.
> 
> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> 
> 
> >   		u64 abs_coeff = ((1ULL << 63) - 1) & ctm->matrix[i];
> >   
> >   		/* Round coefficient. */
> > @@ -425,6 +422,16 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
> >   		coeffs[i] |= ((abs_coeff >> 32) & 7) << 12;
> >   		coeffs[i] |= (abs_coeff >> 20) & 0xfff;
> >   	}
> > +}
> > +
> > +static void chv_load_cgm_csc(struct intel_crtc *crtc,
> > +			     const struct drm_property_blob *blob)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> > +	enum pipe pipe = crtc->pipe;
> > +	u16 coeffs[9];
> > +
> > +	chv_cgm_csc_convert_ctm(coeffs, blob);
> >   
> >   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
> >   			  coeffs[1] << 16 | coeffs[0]);

-- 
Ville Syrjälä
Intel

[Intel-gfx] [PATCH 04/12] drm/i915: Start using struct intel_csc_matrix for chv cgm csc

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Convert chv_cgm_csc_convert_ctm() over to using the nee
intel_csc_matrix structure. No pre/post offsets on this
hardware so only the coefficients get filled out.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 24 +++++++++++-----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 47af24e64a7e..a76cea4ab1ec 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -399,7 +399,7 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 	}
 }
 
-static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
+static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
 				    const struct drm_property_blob *blob)
 {
 	const struct drm_color_ctm *ctm = blob->data;
@@ -413,14 +413,14 @@ static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
 		/* Clamp to hardware limits. */
 		abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_8_0 - 1);
 
-		coeffs[i] = 0;
+		csc->coeff[i] = 0;
 
 		/* Write coefficients in S3.12 format. */
 		if (ctm->matrix[i] & (1ULL << 63))
-			coeffs[i] |= 1 << 15;
+			csc->coeff[i] |= 1 << 15;
 
-		coeffs[i] |= ((abs_coeff >> 32) & 7) << 12;
-		coeffs[i] |= (abs_coeff >> 20) & 0xfff;
+		csc->coeff[i] |= ((abs_coeff >> 32) & 7) << 12;
+		csc->coeff[i] |= (abs_coeff >> 20) & 0xfff;
 	}
 }
 
@@ -429,20 +429,20 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
 {
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	enum pipe pipe = crtc->pipe;
-	u16 coeffs[9];
+	struct intel_csc_matrix tmp;
 
-	chv_cgm_csc_convert_ctm(coeffs, blob);
+	chv_cgm_csc_convert_ctm(&tmp, blob);
 
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
-			  coeffs[1] << 16 | coeffs[0]);
+			  tmp.coeff[1] << 16 | tmp.coeff[0]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF23(pipe),
-			  coeffs[3] << 16 | coeffs[2]);
+			  tmp.coeff[3] << 16 | tmp.coeff[2]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF45(pipe),
-			  coeffs[5] << 16 | coeffs[4]);
+			  tmp.coeff[5] << 16 | tmp.coeff[4]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF67(pipe),
-			  coeffs[7] << 16 | coeffs[6]);
+			  tmp.coeff[7] << 16 | tmp.coeff[6]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF8(pipe),
-			  coeffs[8]);
+			  tmp.coeff[8]);
 }
 
 /* convert hw value with given bit_precision to lut property val */
-- 
2.39.2

Re: [Intel-gfx] [PATCH 04/12] drm/i915: Start using struct intel_csc_matrix for chv cgm csc

[Nautiyal, Ankit K]

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Convert chv_cgm_csc_convert_ctm() over to using the nee

nitpick: typo: new.

Otherwise LGTM.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

> intel_csc_matrix structure. No pre/post offsets on this
> hardware so only the coefficients get filled out.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c | 24 +++++++++++-----------
>   1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index 47af24e64a7e..a76cea4ab1ec 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -399,7 +399,7 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   	}
>   }
>   
> -static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
> +static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
>   				    const struct drm_property_blob *blob)
>   {
>   	const struct drm_color_ctm *ctm = blob->data;
> @@ -413,14 +413,14 @@ static void chv_cgm_csc_convert_ctm(u16 coeffs[9],
>   		/* Clamp to hardware limits. */
>   		abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_8_0 - 1);
>   
> -		coeffs[i] = 0;
> +		csc->coeff[i] = 0;
>   
>   		/* Write coefficients in S3.12 format. */
>   		if (ctm->matrix[i] & (1ULL << 63))
> -			coeffs[i] |= 1 << 15;
> +			csc->coeff[i] |= 1 << 15;
>   
> -		coeffs[i] |= ((abs_coeff >> 32) & 7) << 12;
> -		coeffs[i] |= (abs_coeff >> 20) & 0xfff;
> +		csc->coeff[i] |= ((abs_coeff >> 32) & 7) << 12;
> +		csc->coeff[i] |= (abs_coeff >> 20) & 0xfff;
>   	}
>   }
>   
> @@ -429,20 +429,20 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
>   {
>   	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>   	enum pipe pipe = crtc->pipe;
> -	u16 coeffs[9];
> +	struct intel_csc_matrix tmp;
>   
> -	chv_cgm_csc_convert_ctm(coeffs, blob);
> +	chv_cgm_csc_convert_ctm(&tmp, blob);
>   
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
> -			  coeffs[1] << 16 | coeffs[0]);
> +			  tmp.coeff[1] << 16 | tmp.coeff[0]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF23(pipe),
> -			  coeffs[3] << 16 | coeffs[2]);
> +			  tmp.coeff[3] << 16 | tmp.coeff[2]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF45(pipe),
> -			  coeffs[5] << 16 | coeffs[4]);
> +			  tmp.coeff[5] << 16 | tmp.coeff[4]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF67(pipe),
> -			  coeffs[7] << 16 | coeffs[6]);
> +			  tmp.coeff[7] << 16 | tmp.coeff[6]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF8(pipe),
> -			  coeffs[8]);
> +			  tmp.coeff[8]);
>   }
>   
>   /* convert hw value with given bit_precision to lut property val */

[Intel-gfx] [PATCH 05/12] drm/i915: Store ilk+ csc matrices in the crtc state

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Embed a pair of intel_csc_matrix structs in the crtc state,
and fill them out appropriately during atomic_check().

Since pre-ivb platforms don't have programmable post offsets
we shall leave those zeroed, mainly in preparation for
state readout+check.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c    | 82 ++++++++++++++-----
 .../drm/i915/display/intel_display_types.h    |  2 +
 2 files changed, 63 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index a76cea4ab1ec..a6f7eba59e12 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -158,6 +158,11 @@ static const struct intel_csc_matrix ilk_csc_matrix_rgb_to_ycbcr = {
 	},
 };
 
+static void intel_csc_clear(struct intel_csc_matrix *csc)
+{
+	memset(csc, 0, sizeof(*csc));
+}
+
 static bool lut_is_legacy(const struct drm_property_blob *lut)
 {
 	return lut && drm_color_lut_size(lut) == LEGACY_LUT_LENGTH;
@@ -292,10 +297,21 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
 	return !ilk_lut_limited_range(crtc_state);
 }
 
+static void ilk_csc_copy(struct drm_i915_private *i915,
+			 struct intel_csc_matrix *dst,
+			 const struct intel_csc_matrix *src)
+{
+	*dst = *src;
+
+	if (DISPLAY_VER(i915) < 7)
+		memset(dst->postoff, 0, sizeof(dst->postoff));
+}
+
 static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
 				struct intel_csc_matrix *csc,
 				bool limited_color_range)
 {
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
 	const u64 *input;
 	u64 temp[9];
@@ -303,9 +319,9 @@ static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
 
 	/* for preoff/postoff */
 	if (limited_color_range)
-		*csc = ilk_csc_matrix_limited_range;
+		ilk_csc_copy(i915, csc, &ilk_csc_matrix_limited_range);
 	else
-		*csc = ilk_csc_matrix_identity;
+		ilk_csc_copy(i915, csc, &ilk_csc_matrix_identity);
 
 	if (limited_color_range)
 		input = ctm_mult_by_limited(temp, ctm->matrix);
@@ -351,22 +367,17 @@ static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
 	}
 }
 
-static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
+static void ilk_assign_csc(struct intel_crtc_state *crtc_state)
 {
-	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 	bool limited_color_range = ilk_csc_limited_range(crtc_state);
 
 	if (crtc_state->hw.ctm) {
-		struct intel_csc_matrix tmp;
-
-		ilk_csc_convert_ctm(crtc_state, &tmp, limited_color_range);
-
-		ilk_update_pipe_csc(crtc, &tmp);
+		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, limited_color_range);
 	} else if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
-		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
+		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_rgb_to_ycbcr);
 	} else if (limited_color_range) {
-		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_limited_range);
+		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_limited_range);
 	} else if (crtc_state->csc_enable) {
 		/*
 		 * On GLK both pipe CSC and degamma LUT are controlled
@@ -376,29 +387,50 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 		 */
 		drm_WARN_ON(&i915->drm, !IS_GEMINILAKE(i915));
 
-		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_identity);
+		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_identity);
+	} else {
+		intel_csc_clear(&crtc_state->csc);
 	}
 }
 
-static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
+static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
+	if (crtc_state->csc_enable)
+		ilk_update_pipe_csc(crtc, &crtc_state->csc);
+}
+
+static void icl_assign_csc(struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+
 	if (crtc_state->hw.ctm) {
-		struct intel_csc_matrix tmp;
-
-		ilk_csc_convert_ctm(crtc_state, &tmp, false);
-
-		ilk_update_pipe_csc(crtc, &tmp);
+		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, false);
+	} else {
+		intel_csc_clear(&crtc_state->csc);
 	}
 
 	if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
-		icl_update_output_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
+		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_rgb_to_ycbcr);
 	} else if (crtc_state->limited_color_range) {
-		icl_update_output_csc(crtc, &ilk_csc_matrix_limited_range);
+		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_limited_range);
+	} else {
+		intel_csc_clear(&crtc_state->output_csc);
 	}
 }
 
+static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc_state->csc_mode & ICL_CSC_ENABLE)
+		ilk_update_pipe_csc(crtc, &crtc_state->csc);
+
+	if (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE)
+		icl_update_output_csc(crtc, &crtc_state->output_csc);
+}
+
 static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
 				    const struct drm_property_blob *blob)
 {
@@ -1962,6 +1994,8 @@ static int ilk_color_check(struct intel_crtc_state *crtc_state)
 	if (ret)
 		return ret;
 
+	ilk_assign_csc(crtc_state);
+
 	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
 
 	return 0;
@@ -2068,6 +2102,8 @@ static int ivb_color_check(struct intel_crtc_state *crtc_state)
 	if (ret)
 		return ret;
 
+	ilk_assign_csc(crtc_state);
+
 	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
 
 	return 0;
@@ -2199,6 +2235,8 @@ static int glk_color_check(struct intel_crtc_state *crtc_state)
 	if (ret)
 		return ret;
 
+	ilk_assign_csc(crtc_state);
+
 	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
 
 	return 0;
@@ -2261,6 +2299,8 @@ static int icl_color_check(struct intel_crtc_state *crtc_state)
 
 	intel_assign_luts(crtc_state);
 
+	icl_assign_csc(crtc_state);
+
 	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
 
 	return 0;
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 4829399ea700..1683827632ef 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1032,6 +1032,8 @@ struct intel_crtc_state {
 	/* actual state of LUTs */
 	struct drm_property_blob *pre_csc_lut, *post_csc_lut;
 
+	struct intel_csc_matrix csc, output_csc;
+
 	/**
 	 * quirks - bitfield with hw state readout quirks
 	 *
-- 
2.39.2

Re: [Intel-gfx] [PATCH 05/12] drm/i915: Store ilk+ csc matrices in the crtc state

[Nautiyal, Ankit K]

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Embed a pair of intel_csc_matrix structs in the crtc state,
> and fill them out appropriately during atomic_check().
>
> Since pre-ivb platforms don't have programmable post offsets
> we shall leave those zeroed, mainly in preparation for
> state readout+check.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c    | 82 ++++++++++++++-----
>   .../drm/i915/display/intel_display_types.h    |  2 +
>   2 files changed, 63 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index a76cea4ab1ec..a6f7eba59e12 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -158,6 +158,11 @@ static const struct intel_csc_matrix ilk_csc_matrix_rgb_to_ycbcr = {
>   	},
>   };
>   
> +static void intel_csc_clear(struct intel_csc_matrix *csc)
> +{
> +	memset(csc, 0, sizeof(*csc));
> +}
> +
>   static bool lut_is_legacy(const struct drm_property_blob *lut)
>   {
>   	return lut && drm_color_lut_size(lut) == LEGACY_LUT_LENGTH;
> @@ -292,10 +297,21 @@ static bool ilk_csc_limited_range(const struct intel_crtc_state *crtc_state)
>   	return !ilk_lut_limited_range(crtc_state);
>   }
>   
> +static void ilk_csc_copy(struct drm_i915_private *i915,
> +			 struct intel_csc_matrix *dst,
> +			 const struct intel_csc_matrix *src)
> +{
> +	*dst = *src;
> +
> +	if (DISPLAY_VER(i915) < 7)
> +		memset(dst->postoff, 0, sizeof(dst->postoff));
> +}
> +
>   static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
>   				struct intel_csc_matrix *csc,
>   				bool limited_color_range)
>   {
> +	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
>   	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
>   	const u64 *input;
>   	u64 temp[9];
> @@ -303,9 +319,9 @@ static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
>   
>   	/* for preoff/postoff */
>   	if (limited_color_range)
> -		*csc = ilk_csc_matrix_limited_range;
> +		ilk_csc_copy(i915, csc, &ilk_csc_matrix_limited_range);
>   	else
> -		*csc = ilk_csc_matrix_identity;
> +		ilk_csc_copy(i915, csc, &ilk_csc_matrix_identity);
>   
>   	if (limited_color_range)
>   		input = ctm_mult_by_limited(temp, ctm->matrix);
> @@ -351,22 +367,17 @@ static void ilk_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
>   	}
>   }
>   
> -static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
> +static void ilk_assign_csc(struct intel_crtc_state *crtc_state)
>   {
> -	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> -	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
>   	bool limited_color_range = ilk_csc_limited_range(crtc_state);
>   
>   	if (crtc_state->hw.ctm) {
> -		struct intel_csc_matrix tmp;
> -
> -		ilk_csc_convert_ctm(crtc_state, &tmp, limited_color_range);
> -
> -		ilk_update_pipe_csc(crtc, &tmp);
> +		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, limited_color_range);
>   	} else if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
> -		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
> +		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_rgb_to_ycbcr);
>   	} else if (limited_color_range) {
> -		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_limited_range);
> +		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_limited_range);
>   	} else if (crtc_state->csc_enable) {
>   		/*
>   		 * On GLK both pipe CSC and degamma LUT are controlled
> @@ -376,29 +387,50 @@ static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   		 */
>   		drm_WARN_ON(&i915->drm, !IS_GEMINILAKE(i915));
>   
> -		ilk_update_pipe_csc(crtc, &ilk_csc_matrix_identity);
> +		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_identity);
> +	} else {
> +		intel_csc_clear(&crtc_state->csc);
>   	}
>   }
>   
> -static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
> +static void ilk_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   {
>   	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
>   
> +	if (crtc_state->csc_enable)
> +		ilk_update_pipe_csc(crtc, &crtc_state->csc);
> +}
> +
> +static void icl_assign_csc(struct intel_crtc_state *crtc_state)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
> +
>   	if (crtc_state->hw.ctm) {
> -		struct intel_csc_matrix tmp;
> -
> -		ilk_csc_convert_ctm(crtc_state, &tmp, false);
> -
> -		ilk_update_pipe_csc(crtc, &tmp);
> +		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, false);

Perhaps braces are not required here. Can be dropped here and introduce 
in patch adding warn ons.

With that fixed, this is:

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

> +	} else {
> +		intel_csc_clear(&crtc_state->csc);
>   	}
>   
>   	if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
> -		icl_update_output_csc(crtc, &ilk_csc_matrix_rgb_to_ycbcr);
> +		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_rgb_to_ycbcr);
>   	} else if (crtc_state->limited_color_range) {
> -		icl_update_output_csc(crtc, &ilk_csc_matrix_limited_range);
> +		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_limited_range);
> +	} else {
> +		intel_csc_clear(&crtc_state->output_csc);
>   	}
>   }
>   
> +static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
> +{
> +	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> +
> +	if (crtc_state->csc_mode & ICL_CSC_ENABLE)
> +		ilk_update_pipe_csc(crtc, &crtc_state->csc);
> +
> +	if (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE)
> +		icl_update_output_csc(crtc, &crtc_state->output_csc);
> +}
> +
>   static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
>   				    const struct drm_property_blob *blob)
>   {
> @@ -1962,6 +1994,8 @@ static int ilk_color_check(struct intel_crtc_state *crtc_state)
>   	if (ret)
>   		return ret;
>   
> +	ilk_assign_csc(crtc_state);
> +
>   	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
>   
>   	return 0;
> @@ -2068,6 +2102,8 @@ static int ivb_color_check(struct intel_crtc_state *crtc_state)
>   	if (ret)
>   		return ret;
>   
> +	ilk_assign_csc(crtc_state);
> +
>   	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
>   
>   	return 0;
> @@ -2199,6 +2235,8 @@ static int glk_color_check(struct intel_crtc_state *crtc_state)
>   	if (ret)
>   		return ret;
>   
> +	ilk_assign_csc(crtc_state);
> +
>   	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
>   
>   	return 0;
> @@ -2261,6 +2299,8 @@ static int icl_color_check(struct intel_crtc_state *crtc_state)
>   
>   	intel_assign_luts(crtc_state);
>   
> +	icl_assign_csc(crtc_state);
> +
>   	crtc_state->preload_luts = intel_can_preload_luts(crtc_state);
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 4829399ea700..1683827632ef 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1032,6 +1032,8 @@ struct intel_crtc_state {
>   	/* actual state of LUTs */
>   	struct drm_property_blob *pre_csc_lut, *post_csc_lut;
>   
> +	struct intel_csc_matrix csc, output_csc;
> +
>   	/**
>   	 * quirks - bitfield with hw state readout quirks
>   	 *

[Intel-gfx] [PATCH 06/12] drm/i915: Utilize crtc_state->csc on chv

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Store the chv cgm csc matrix in the crtc state as well. We
shall store it in the same place where we store the ilk+
pipe csc matrix (as opposed to the output csc matrix).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 35 +++++++++++++---------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index a6f7eba59e12..7e8820583942 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -431,10 +431,10 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
 		icl_update_output_csc(crtc, &crtc_state->output_csc);
 }
 
-static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
-				    const struct drm_property_blob *blob)
+static void chv_cgm_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
+				    struct intel_csc_matrix *csc)
 {
-	const struct drm_color_ctm *ctm = blob->data;
+	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
 	int i;
 
 	for (i = 0; i < 9; i++) {
@@ -457,24 +457,30 @@ static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
 }
 
 static void chv_load_cgm_csc(struct intel_crtc *crtc,
-			     const struct drm_property_blob *blob)
+			     const struct intel_csc_matrix *csc)
 {
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	enum pipe pipe = crtc->pipe;
-	struct intel_csc_matrix tmp;
-
-	chv_cgm_csc_convert_ctm(&tmp, blob);
 
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
-			  tmp.coeff[1] << 16 | tmp.coeff[0]);
+			  csc->coeff[1] << 16 | csc->coeff[0]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF23(pipe),
-			  tmp.coeff[3] << 16 | tmp.coeff[2]);
+			  csc->coeff[3] << 16 | csc->coeff[2]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF45(pipe),
-			  tmp.coeff[5] << 16 | tmp.coeff[4]);
+			  csc->coeff[5] << 16 | csc->coeff[4]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF67(pipe),
-			  tmp.coeff[7] << 16 | tmp.coeff[6]);
+			  csc->coeff[7] << 16 | csc->coeff[6]);
 	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF8(pipe),
-			  tmp.coeff[8]);
+			  csc->coeff[8]);
+}
+
+static void chv_assign_csc(struct intel_crtc_state *crtc_state)
+{
+	if (crtc_state->hw.ctm) {
+		chv_cgm_csc_convert_ctm(crtc_state, &crtc_state->csc);
+	} else {
+		intel_csc_clear(&crtc_state->csc);
+	}
 }
 
 /* convert hw value with given bit_precision to lut property val */
@@ -1442,10 +1448,9 @@ static void chv_load_luts(const struct intel_crtc_state *crtc_state)
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	const struct drm_property_blob *pre_csc_lut = crtc_state->pre_csc_lut;
 	const struct drm_property_blob *post_csc_lut = crtc_state->post_csc_lut;
-	const struct drm_property_blob *ctm = crtc_state->hw.ctm;
 
 	if (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC)
-		chv_load_cgm_csc(crtc, ctm);
+		chv_load_cgm_csc(crtc, &crtc_state->csc);
 
 	if (crtc_state->cgm_mode & CGM_PIPE_MODE_DEGAMMA)
 		chv_load_cgm_degamma(crtc, pre_csc_lut);
@@ -1872,6 +1877,8 @@ static int chv_color_check(struct intel_crtc_state *crtc_state)
 
 	intel_assign_luts(crtc_state);
 
+	chv_assign_csc(crtc_state);
+
 	crtc_state->preload_luts = chv_can_preload_luts(crtc_state);
 
 	return 0;
-- 
2.39.2

Re: [Intel-gfx] [PATCH 06/12] drm/i915: Utilize crtc_state->csc on chv

[Nautiyal, Ankit K]

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Store the chv cgm csc matrix in the crtc state as well. We
> shall store it in the same place where we store the ilk+
> pipe csc matrix (as opposed to the output csc matrix).
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c | 35 +++++++++++++---------
>   1 file changed, 21 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index a6f7eba59e12..7e8820583942 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -431,10 +431,10 @@ static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state)
>   		icl_update_output_csc(crtc, &crtc_state->output_csc);
>   }
>   
> -static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
> -				    const struct drm_property_blob *blob)
> +static void chv_cgm_csc_convert_ctm(const struct intel_crtc_state *crtc_state,
> +				    struct intel_csc_matrix *csc)
>   {
> -	const struct drm_color_ctm *ctm = blob->data;
> +	const struct drm_color_ctm *ctm = crtc_state->hw.ctm->data;
>   	int i;
>   
>   	for (i = 0; i < 9; i++) {
> @@ -457,24 +457,30 @@ static void chv_cgm_csc_convert_ctm(struct intel_csc_matrix *csc,
>   }
>   
>   static void chv_load_cgm_csc(struct intel_crtc *crtc,
> -			     const struct drm_property_blob *blob)
> +			     const struct intel_csc_matrix *csc)
>   {
>   	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>   	enum pipe pipe = crtc->pipe;
> -	struct intel_csc_matrix tmp;
> -
> -	chv_cgm_csc_convert_ctm(&tmp, blob);
>   
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF01(pipe),
> -			  tmp.coeff[1] << 16 | tmp.coeff[0]);
> +			  csc->coeff[1] << 16 | csc->coeff[0]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF23(pipe),
> -			  tmp.coeff[3] << 16 | tmp.coeff[2]);
> +			  csc->coeff[3] << 16 | csc->coeff[2]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF45(pipe),
> -			  tmp.coeff[5] << 16 | tmp.coeff[4]);
> +			  csc->coeff[5] << 16 | csc->coeff[4]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF67(pipe),
> -			  tmp.coeff[7] << 16 | tmp.coeff[6]);
> +			  csc->coeff[7] << 16 | csc->coeff[6]);
>   	intel_de_write_fw(i915, CGM_PIPE_CSC_COEFF8(pipe),
> -			  tmp.coeff[8]);
> +			  csc->coeff[8]);
> +}
> +
> +static void chv_assign_csc(struct intel_crtc_state *crtc_state)
> +{
> +	if (crtc_state->hw.ctm) {
> +		chv_cgm_csc_convert_ctm(crtc_state, &crtc_state->csc);
> +	} else {
> +		intel_csc_clear(&crtc_state->csc);
> +	}

It does make sense to have a block for csc and another for output_csc, 
analogous to the load part.

We are anyway adding drm_Warn later, so braces can be dropped here and 
introduced in patch adding warn_ons

Otherwise the Patch looks good to me.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>


>   }
>   
>   /* convert hw value with given bit_precision to lut property val */
> @@ -1442,10 +1448,9 @@ static void chv_load_luts(const struct intel_crtc_state *crtc_state)
>   	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>   	const struct drm_property_blob *pre_csc_lut = crtc_state->pre_csc_lut;
>   	const struct drm_property_blob *post_csc_lut = crtc_state->post_csc_lut;
> -	const struct drm_property_blob *ctm = crtc_state->hw.ctm;
>   
>   	if (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC)
> -		chv_load_cgm_csc(crtc, ctm);
> +		chv_load_cgm_csc(crtc, &crtc_state->csc);
>   
>   	if (crtc_state->cgm_mode & CGM_PIPE_MODE_DEGAMMA)
>   		chv_load_cgm_degamma(crtc, pre_csc_lut);
> @@ -1872,6 +1877,8 @@ static int chv_color_check(struct intel_crtc_state *crtc_state)
>   
>   	intel_assign_luts(crtc_state);
>   
> +	chv_assign_csc(crtc_state);
> +
>   	crtc_state->preload_luts = chv_can_preload_luts(crtc_state);
>   
>   	return 0;

[Intel-gfx] [PATCH 07/12] drm/i915: Sprinke a few sanity check WARNS during csc assignment

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Make sure the csc enable bit(s) match the way we're about to
fill the csc matrices.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 7e8820583942..2988c91d8ff6 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -373,10 +373,16 @@ static void ilk_assign_csc(struct intel_crtc_state *crtc_state)
 	bool limited_color_range = ilk_csc_limited_range(crtc_state);
 
 	if (crtc_state->hw.ctm) {
+		drm_WARN_ON(&i915->drm, !crtc_state->csc_enable);
+
 		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, limited_color_range);
 	} else if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
+		drm_WARN_ON(&i915->drm, !crtc_state->csc_enable);
+
 		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_rgb_to_ycbcr);
 	} else if (limited_color_range) {
+		drm_WARN_ON(&i915->drm, !crtc_state->csc_enable);
+
 		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_limited_range);
 	} else if (crtc_state->csc_enable) {
 		/*
@@ -406,16 +412,26 @@ static void icl_assign_csc(struct intel_crtc_state *crtc_state)
 	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 
 	if (crtc_state->hw.ctm) {
+		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_CSC_ENABLE) == 0);
+
 		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, false);
 	} else {
+		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_CSC_ENABLE) != 0);
+
 		intel_csc_clear(&crtc_state->csc);
 	}
 
 	if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
+		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE) == 0);
+
 		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_rgb_to_ycbcr);
 	} else if (crtc_state->limited_color_range) {
+		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE) == 0);
+
 		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_limited_range);
 	} else {
+		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE) != 0);
+
 		intel_csc_clear(&crtc_state->output_csc);
 	}
 }
@@ -476,9 +492,15 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
 
 static void chv_assign_csc(struct intel_crtc_state *crtc_state)
 {
+	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
+
 	if (crtc_state->hw.ctm) {
+		drm_WARN_ON(&i915->drm, (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC) == 0);
+
 		chv_cgm_csc_convert_ctm(crtc_state, &crtc_state->csc);
 	} else {
+		drm_WARN_ON(&i915->drm, (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC) != 0);
+
 		intel_csc_clear(&crtc_state->csc);
 	}
 }
-- 
2.39.2

Re: [Intel-gfx] [PATCH 07/12] drm/i915: Sprinke a few sanity check WARNS during csc assignment

[Nautiyal, Ankit K]

LGTM.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Make sure the csc enable bit(s) match the way we're about to
> fill the csc matrices.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c | 22 ++++++++++++++++++++++
>   1 file changed, 22 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index 7e8820583942..2988c91d8ff6 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -373,10 +373,16 @@ static void ilk_assign_csc(struct intel_crtc_state *crtc_state)
>   	bool limited_color_range = ilk_csc_limited_range(crtc_state);
>   
>   	if (crtc_state->hw.ctm) {
> +		drm_WARN_ON(&i915->drm, !crtc_state->csc_enable);
> +
>   		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, limited_color_range);
>   	} else if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
> +		drm_WARN_ON(&i915->drm, !crtc_state->csc_enable);
> +
>   		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_rgb_to_ycbcr);
>   	} else if (limited_color_range) {
> +		drm_WARN_ON(&i915->drm, !crtc_state->csc_enable);
> +
>   		ilk_csc_copy(i915, &crtc_state->csc, &ilk_csc_matrix_limited_range);
>   	} else if (crtc_state->csc_enable) {
>   		/*
> @@ -406,16 +412,26 @@ static void icl_assign_csc(struct intel_crtc_state *crtc_state)
>   	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
>   
>   	if (crtc_state->hw.ctm) {
> +		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_CSC_ENABLE) == 0);
> +
>   		ilk_csc_convert_ctm(crtc_state, &crtc_state->csc, false);
>   	} else {
> +		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_CSC_ENABLE) != 0);
> +
>   		intel_csc_clear(&crtc_state->csc);
>   	}
>   
>   	if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) {
> +		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE) == 0);
> +
>   		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_rgb_to_ycbcr);
>   	} else if (crtc_state->limited_color_range) {
> +		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE) == 0);
> +
>   		ilk_csc_copy(i915, &crtc_state->output_csc, &ilk_csc_matrix_limited_range);
>   	} else {
> +		drm_WARN_ON(&i915->drm, (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE) != 0);
> +
>   		intel_csc_clear(&crtc_state->output_csc);
>   	}
>   }
> @@ -476,9 +492,15 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
>   
>   static void chv_assign_csc(struct intel_crtc_state *crtc_state)
>   {
> +	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
> +
>   	if (crtc_state->hw.ctm) {
> +		drm_WARN_ON(&i915->drm, (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC) == 0);
> +
>   		chv_cgm_csc_convert_ctm(crtc_state, &crtc_state->csc);
>   	} else {
> +		drm_WARN_ON(&i915->drm, (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC) != 0);
> +
>   		intel_csc_clear(&crtc_state->csc);
>   	}
>   }

[Intel-gfx] [PATCH 08/12] drm/i915: Add hardware csc readout for ilk+

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Read out the pipe/output csc matrices on ilk+ and stash the results
(in the hardware specific format) into the appropriate place
in the crtc state.

Note that on skl/glk/icl the pipe csc unit suffers from an issue
where *reads* of the coefficient/offset registers also disarm
the double buffer update (if currently armed via CSC_MODE write).
So it's rather important that the readout only happens after the
csc registers have been latched. Fortunately the state checker
only runs after the start of vblank where the latching happens.

And on skl/glk the DMC + CSC register read has the potential to
corrupt the latched CSC register values, so let's add a comment
reminding us that the DC states should remain off until the
readout has been completed.

TODO: maybe we could somehow check to make sure PSR has in fact
latched the new register values already, and that DC states
have been off all along?

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c   | 133 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_display.c |   6 +
 2 files changed, 139 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 2988c91d8ff6..86b0d8260574 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -25,6 +25,7 @@
 #include "i915_reg.h"
 #include "intel_color.h"
 #include "intel_de.h"
+#include "intel_display_power.h"
 #include "intel_display_types.h"
 #include "intel_dsb.h"
 
@@ -70,6 +71,11 @@ struct intel_color_funcs {
 			  const struct drm_property_blob *blob1,
 			  const struct drm_property_blob *blob2,
 			  bool is_pre_csc_lut);
+	/*
+	 * Read out the CSCs (if any) from the hardware into the
+	 * software state. Used by eg. the hardware state checker.
+	 */
+	void (*read_csc)(struct intel_crtc_state *crtc_state);
 };
 
 #define CTM_COEFF_SIGN	(1ULL << 63)
@@ -227,6 +233,72 @@ static void ilk_update_pipe_csc(struct intel_crtc *crtc,
 	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_LO(pipe), csc->postoff[2]);
 }
 
+static void ilk_read_pipe_csc(struct intel_crtc *crtc,
+			      struct intel_csc_matrix *csc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+	u32 tmp;
+
+	csc->preoff[0] = intel_de_read_fw(i915, PIPE_CSC_PREOFF_HI(pipe));
+	csc->preoff[1] = intel_de_read_fw(i915, PIPE_CSC_PREOFF_ME(pipe));
+	csc->preoff[2] = intel_de_read_fw(i915, PIPE_CSC_PREOFF_LO(pipe));
+
+	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_RY_GY(pipe));
+	csc->coeff[0] = tmp >> 16;
+	csc->coeff[1] = tmp & 0xffff;
+	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_BY(pipe));
+	csc->coeff[2] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_RU_GU(pipe));
+	csc->coeff[3] = tmp >> 16;
+	csc->coeff[4] = tmp & 0xffff;
+	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_BU(pipe));
+	csc->coeff[5] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_RV_GV(pipe));
+	csc->coeff[6] = tmp >> 16;
+	csc->coeff[7] = tmp & 0xffff;
+	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_BV(pipe));
+	csc->coeff[8] = tmp >> 16;
+
+	if (DISPLAY_VER(i915) < 7)
+		return;
+
+	csc->postoff[0] = intel_de_read_fw(i915, PIPE_CSC_POSTOFF_HI(pipe));
+	csc->postoff[1] = intel_de_read_fw(i915, PIPE_CSC_POSTOFF_ME(pipe));
+	csc->postoff[2] = intel_de_read_fw(i915, PIPE_CSC_POSTOFF_LO(pipe));
+}
+
+static void ilk_read_csc(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc_state->csc_enable)
+		ilk_read_pipe_csc(crtc, &crtc_state->csc);
+}
+
+static void skl_read_csc(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	/*
+	 * Display WA #1184: skl,glk
+	 * Wa_1406463849: icl
+	 *
+	 * Danger! On SKL-ICL *reads* from the CSC coeff/offset registers
+	 * will disarm an already armed CSC double buffer update.
+	 * So this must not be called while armed. Fortunately the state checker
+	 * readout happens only after the update has been already been latched.
+	 *
+	 * On earlier and later platforms only writes to said registers will
+	 * disarm the update. This is considered normal behavior and also
+	 * happens with various other hardware units.
+	 */
+	if (crtc_state->csc_enable)
+		ilk_read_pipe_csc(crtc, &crtc_state->csc);
+}
+
 static void icl_update_output_csc(struct intel_crtc *crtc,
 				  const struct intel_csc_matrix *csc)
 {
@@ -257,6 +329,56 @@ static void icl_update_output_csc(struct intel_crtc *crtc,
 	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe), csc->postoff[2]);
 }
 
+static void icl_read_output_csc(struct intel_crtc *crtc,
+				struct intel_csc_matrix *csc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+	u32 tmp;
+
+	csc->preoff[0] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_PREOFF_HI(pipe));
+	csc->preoff[1] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_PREOFF_ME(pipe));
+	csc->preoff[2] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_PREOFF_LO(pipe));
+
+	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_RY_GY(pipe));
+	csc->coeff[0] = tmp >> 16;
+	csc->coeff[1] = tmp & 0xffff;
+	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_BY(pipe));
+	csc->coeff[2] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_RU_GU(pipe));
+	csc->coeff[3] = tmp >> 16;
+	csc->coeff[4] = tmp & 0xffff;
+	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_BU(pipe));
+	csc->coeff[5] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_RV_GV(pipe));
+	csc->coeff[6] = tmp >> 16;
+	csc->coeff[7] = tmp & 0xffff;
+	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_BV(pipe));
+	csc->coeff[8] = tmp >> 16;
+
+	csc->postoff[0] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_HI(pipe));
+	csc->postoff[1] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_ME(pipe));
+	csc->postoff[2] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe));
+}
+
+static void icl_read_csc(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	/*
+	 * Wa_1406463849: icl
+	 *
+	 * See skl_read_csc()
+	 */
+	if (crtc_state->csc_mode & ICL_CSC_ENABLE)
+		ilk_read_pipe_csc(crtc, &crtc_state->csc);
+
+	if (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE)
+		icl_read_output_csc(crtc, &crtc_state->output_csc);
+}
+
 static bool ilk_limited_range(const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
@@ -1581,6 +1703,9 @@ void intel_color_get_config(struct intel_crtc_state *crtc_state)
 	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
 
 	i915->display.funcs.color->read_luts(crtc_state);
+
+	if (i915->display.funcs.color->read_csc)
+		i915->display.funcs.color->read_csc(crtc_state);
 }
 
 bool intel_color_lut_equal(const struct intel_crtc_state *crtc_state,
@@ -3229,6 +3354,7 @@ static const struct intel_color_funcs tgl_color_funcs = {
 	.load_luts = icl_load_luts,
 	.read_luts = icl_read_luts,
 	.lut_equal = icl_lut_equal,
+	.read_csc = icl_read_csc,
 };
 
 static const struct intel_color_funcs icl_color_funcs = {
@@ -3239,6 +3365,7 @@ static const struct intel_color_funcs icl_color_funcs = {
 	.load_luts = icl_load_luts,
 	.read_luts = icl_read_luts,
 	.lut_equal = icl_lut_equal,
+	.read_csc = icl_read_csc,
 };
 
 static const struct intel_color_funcs glk_color_funcs = {
@@ -3248,6 +3375,7 @@ static const struct intel_color_funcs glk_color_funcs = {
 	.load_luts = glk_load_luts,
 	.read_luts = glk_read_luts,
 	.lut_equal = glk_lut_equal,
+	.read_csc = skl_read_csc,
 };
 
 static const struct intel_color_funcs skl_color_funcs = {
@@ -3257,6 +3385,7 @@ static const struct intel_color_funcs skl_color_funcs = {
 	.load_luts = bdw_load_luts,
 	.read_luts = bdw_read_luts,
 	.lut_equal = ivb_lut_equal,
+	.read_csc = skl_read_csc,
 };
 
 static const struct intel_color_funcs bdw_color_funcs = {
@@ -3266,6 +3395,7 @@ static const struct intel_color_funcs bdw_color_funcs = {
 	.load_luts = bdw_load_luts,
 	.read_luts = bdw_read_luts,
 	.lut_equal = ivb_lut_equal,
+	.read_csc = ilk_read_csc,
 };
 
 static const struct intel_color_funcs hsw_color_funcs = {
@@ -3275,6 +3405,7 @@ static const struct intel_color_funcs hsw_color_funcs = {
 	.load_luts = ivb_load_luts,
 	.read_luts = ivb_read_luts,
 	.lut_equal = ivb_lut_equal,
+	.read_csc = ilk_read_csc,
 };
 
 static const struct intel_color_funcs ivb_color_funcs = {
@@ -3284,6 +3415,7 @@ static const struct intel_color_funcs ivb_color_funcs = {
 	.load_luts = ivb_load_luts,
 	.read_luts = ivb_read_luts,
 	.lut_equal = ivb_lut_equal,
+	.read_csc = ilk_read_csc,
 };
 
 static const struct intel_color_funcs ilk_color_funcs = {
@@ -3293,6 +3425,7 @@ static const struct intel_color_funcs ilk_color_funcs = {
 	.load_luts = ilk_load_luts,
 	.read_luts = ilk_read_luts,
 	.lut_equal = ilk_lut_equal,
+	.read_csc = ilk_read_csc,
 };
 
 void intel_color_crtc_init(struct intel_crtc *crtc)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b53a1d969344..aa22241c971c 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7384,6 +7384,12 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 	 * 7. New _arm() registers are finally written
 	 * 8. Hardware finally latches a complete set of new
 	 *    register values, and subsequent frames will be OK again
+	 *
+	 * Also note that due to the pipe CSC hardware issues on
+	 * SKL/GLK DC states must remain off until the pipe CSC
+	 * state readout has happened. Otherwise we risk corrupting
+	 * the CSC latched register values with the readout (see
+	 * skl_read_csc() and skl_color_commit_noarm()).
 	 */
 	wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_DC_OFF);
 
-- 
2.39.2

Re: [Intel-gfx] [PATCH 08/12] drm/i915: Add hardware csc readout for ilk+

[Nautiyal, Ankit K]

Patch LGTM.

Perhaps TODO part, to check for case of PSR and if DC states are already 
off can be taken as separate patch.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Read out the pipe/output csc matrices on ilk+ and stash the results
> (in the hardware specific format) into the appropriate place
> in the crtc state.
>
> Note that on skl/glk/icl the pipe csc unit suffers from an issue
> where *reads* of the coefficient/offset registers also disarm
> the double buffer update (if currently armed via CSC_MODE write).
> So it's rather important that the readout only happens after the
> csc registers have been latched. Fortunately the state checker
> only runs after the start of vblank where the latching happens.
>
> And on skl/glk the DMC + CSC register read has the potential to
> corrupt the latched CSC register values, so let's add a comment
> reminding us that the DC states should remain off until the
> readout has been completed.
>
> TODO: maybe we could somehow check to make sure PSR has in fact
> latched the new register values already, and that DC states
> have been off all along?
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c   | 133 +++++++++++++++++++
>   drivers/gpu/drm/i915/display/intel_display.c |   6 +
>   2 files changed, 139 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index 2988c91d8ff6..86b0d8260574 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -25,6 +25,7 @@
>   #include "i915_reg.h"
>   #include "intel_color.h"
>   #include "intel_de.h"
> +#include "intel_display_power.h"
>   #include "intel_display_types.h"
>   #include "intel_dsb.h"
>   
> @@ -70,6 +71,11 @@ struct intel_color_funcs {
>   			  const struct drm_property_blob *blob1,
>   			  const struct drm_property_blob *blob2,
>   			  bool is_pre_csc_lut);
> +	/*
> +	 * Read out the CSCs (if any) from the hardware into the
> +	 * software state. Used by eg. the hardware state checker.
> +	 */
> +	void (*read_csc)(struct intel_crtc_state *crtc_state);
>   };
>   
>   #define CTM_COEFF_SIGN	(1ULL << 63)
> @@ -227,6 +233,72 @@ static void ilk_update_pipe_csc(struct intel_crtc *crtc,
>   	intel_de_write_fw(i915, PIPE_CSC_POSTOFF_LO(pipe), csc->postoff[2]);
>   }
>   
> +static void ilk_read_pipe_csc(struct intel_crtc *crtc,
> +			      struct intel_csc_matrix *csc)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	enum pipe pipe = crtc->pipe;
> +	u32 tmp;
> +
> +	csc->preoff[0] = intel_de_read_fw(i915, PIPE_CSC_PREOFF_HI(pipe));
> +	csc->preoff[1] = intel_de_read_fw(i915, PIPE_CSC_PREOFF_ME(pipe));
> +	csc->preoff[2] = intel_de_read_fw(i915, PIPE_CSC_PREOFF_LO(pipe));
> +
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_RY_GY(pipe));
> +	csc->coeff[0] = tmp >> 16;
> +	csc->coeff[1] = tmp & 0xffff;
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_BY(pipe));
> +	csc->coeff[2] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_RU_GU(pipe));
> +	csc->coeff[3] = tmp >> 16;
> +	csc->coeff[4] = tmp & 0xffff;
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_BU(pipe));
> +	csc->coeff[5] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_RV_GV(pipe));
> +	csc->coeff[6] = tmp >> 16;
> +	csc->coeff[7] = tmp & 0xffff;
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_COEFF_BV(pipe));
> +	csc->coeff[8] = tmp >> 16;
> +
> +	if (DISPLAY_VER(i915) < 7)
> +		return;
> +
> +	csc->postoff[0] = intel_de_read_fw(i915, PIPE_CSC_POSTOFF_HI(pipe));
> +	csc->postoff[1] = intel_de_read_fw(i915, PIPE_CSC_POSTOFF_ME(pipe));
> +	csc->postoff[2] = intel_de_read_fw(i915, PIPE_CSC_POSTOFF_LO(pipe));
> +}
> +
> +static void ilk_read_csc(struct intel_crtc_state *crtc_state)
> +{
> +	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> +
> +	if (crtc_state->csc_enable)
> +		ilk_read_pipe_csc(crtc, &crtc_state->csc);
> +}
> +
> +static void skl_read_csc(struct intel_crtc_state *crtc_state)
> +{
> +	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> +
> +	/*
> +	 * Display WA #1184: skl,glk
> +	 * Wa_1406463849: icl
> +	 *
> +	 * Danger! On SKL-ICL *reads* from the CSC coeff/offset registers
> +	 * will disarm an already armed CSC double buffer update.
> +	 * So this must not be called while armed. Fortunately the state checker
> +	 * readout happens only after the update has been already been latched.
> +	 *
> +	 * On earlier and later platforms only writes to said registers will
> +	 * disarm the update. This is considered normal behavior and also
> +	 * happens with various other hardware units.
> +	 */
> +	if (crtc_state->csc_enable)
> +		ilk_read_pipe_csc(crtc, &crtc_state->csc);
> +}
> +
>   static void icl_update_output_csc(struct intel_crtc *crtc,
>   				  const struct intel_csc_matrix *csc)
>   {
> @@ -257,6 +329,56 @@ static void icl_update_output_csc(struct intel_crtc *crtc,
>   	intel_de_write_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe), csc->postoff[2]);
>   }
>   
> +static void icl_read_output_csc(struct intel_crtc *crtc,
> +				struct intel_csc_matrix *csc)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	enum pipe pipe = crtc->pipe;
> +	u32 tmp;
> +
> +	csc->preoff[0] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_PREOFF_HI(pipe));
> +	csc->preoff[1] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_PREOFF_ME(pipe));
> +	csc->preoff[2] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_PREOFF_LO(pipe));
> +
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_RY_GY(pipe));
> +	csc->coeff[0] = tmp >> 16;
> +	csc->coeff[1] = tmp & 0xffff;
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_BY(pipe));
> +	csc->coeff[2] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_RU_GU(pipe));
> +	csc->coeff[3] = tmp >> 16;
> +	csc->coeff[4] = tmp & 0xffff;
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_BU(pipe));
> +	csc->coeff[5] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_RV_GV(pipe));
> +	csc->coeff[6] = tmp >> 16;
> +	csc->coeff[7] = tmp & 0xffff;
> +	tmp = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_COEFF_BV(pipe));
> +	csc->coeff[8] = tmp >> 16;
> +
> +	csc->postoff[0] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_HI(pipe));
> +	csc->postoff[1] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_ME(pipe));
> +	csc->postoff[2] = intel_de_read_fw(i915, PIPE_CSC_OUTPUT_POSTOFF_LO(pipe));
> +}
> +
> +static void icl_read_csc(struct intel_crtc_state *crtc_state)
> +{
> +	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> +
> +	/*
> +	 * Wa_1406463849: icl
> +	 *
> +	 * See skl_read_csc()
> +	 */
> +	if (crtc_state->csc_mode & ICL_CSC_ENABLE)
> +		ilk_read_pipe_csc(crtc, &crtc_state->csc);
> +
> +	if (crtc_state->csc_mode & ICL_OUTPUT_CSC_ENABLE)
> +		icl_read_output_csc(crtc, &crtc_state->output_csc);
> +}
> +
>   static bool ilk_limited_range(const struct intel_crtc_state *crtc_state)
>   {
>   	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
> @@ -1581,6 +1703,9 @@ void intel_color_get_config(struct intel_crtc_state *crtc_state)
>   	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
>   
>   	i915->display.funcs.color->read_luts(crtc_state);
> +
> +	if (i915->display.funcs.color->read_csc)
> +		i915->display.funcs.color->read_csc(crtc_state);
>   }
>   
>   bool intel_color_lut_equal(const struct intel_crtc_state *crtc_state,
> @@ -3229,6 +3354,7 @@ static const struct intel_color_funcs tgl_color_funcs = {
>   	.load_luts = icl_load_luts,
>   	.read_luts = icl_read_luts,
>   	.lut_equal = icl_lut_equal,
> +	.read_csc = icl_read_csc,
>   };
>   
>   static const struct intel_color_funcs icl_color_funcs = {
> @@ -3239,6 +3365,7 @@ static const struct intel_color_funcs icl_color_funcs = {
>   	.load_luts = icl_load_luts,
>   	.read_luts = icl_read_luts,
>   	.lut_equal = icl_lut_equal,
> +	.read_csc = icl_read_csc,
>   };
>   
>   static const struct intel_color_funcs glk_color_funcs = {
> @@ -3248,6 +3375,7 @@ static const struct intel_color_funcs glk_color_funcs = {
>   	.load_luts = glk_load_luts,
>   	.read_luts = glk_read_luts,
>   	.lut_equal = glk_lut_equal,
> +	.read_csc = skl_read_csc,
>   };
>   
>   static const struct intel_color_funcs skl_color_funcs = {
> @@ -3257,6 +3385,7 @@ static const struct intel_color_funcs skl_color_funcs = {
>   	.load_luts = bdw_load_luts,
>   	.read_luts = bdw_read_luts,
>   	.lut_equal = ivb_lut_equal,
> +	.read_csc = skl_read_csc,
>   };
>   
>   static const struct intel_color_funcs bdw_color_funcs = {
> @@ -3266,6 +3395,7 @@ static const struct intel_color_funcs bdw_color_funcs = {
>   	.load_luts = bdw_load_luts,
>   	.read_luts = bdw_read_luts,
>   	.lut_equal = ivb_lut_equal,
> +	.read_csc = ilk_read_csc,
>   };
>   
>   static const struct intel_color_funcs hsw_color_funcs = {
> @@ -3275,6 +3405,7 @@ static const struct intel_color_funcs hsw_color_funcs = {
>   	.load_luts = ivb_load_luts,
>   	.read_luts = ivb_read_luts,
>   	.lut_equal = ivb_lut_equal,
> +	.read_csc = ilk_read_csc,
>   };
>   
>   static const struct intel_color_funcs ivb_color_funcs = {
> @@ -3284,6 +3415,7 @@ static const struct intel_color_funcs ivb_color_funcs = {
>   	.load_luts = ivb_load_luts,
>   	.read_luts = ivb_read_luts,
>   	.lut_equal = ivb_lut_equal,
> +	.read_csc = ilk_read_csc,
>   };
>   
>   static const struct intel_color_funcs ilk_color_funcs = {
> @@ -3293,6 +3425,7 @@ static const struct intel_color_funcs ilk_color_funcs = {
>   	.load_luts = ilk_load_luts,
>   	.read_luts = ilk_read_luts,
>   	.lut_equal = ilk_lut_equal,
> +	.read_csc = ilk_read_csc,
>   };
>   
>   void intel_color_crtc_init(struct intel_crtc *crtc)
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index b53a1d969344..aa22241c971c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -7384,6 +7384,12 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
>   	 * 7. New _arm() registers are finally written
>   	 * 8. Hardware finally latches a complete set of new
>   	 *    register values, and subsequent frames will be OK again
> +	 *
> +	 * Also note that due to the pipe CSC hardware issues on
> +	 * SKL/GLK DC states must remain off until the pipe CSC
> +	 * state readout has happened. Otherwise we risk corrupting
> +	 * the CSC latched register values with the readout (see
> +	 * skl_read_csc() and skl_color_commit_noarm()).
>   	 */
>   	wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_DC_OFF);
>   

[Intel-gfx] [PATCH 09/12] drm/i915: Implement chv cgm csc readout

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Read out the csc matrix on chv, and stash the result into the
correct spot in the crtc state.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 86b0d8260574..baadf62aabb4 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -612,6 +612,41 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
 			  csc->coeff[8]);
 }
 
+static void chv_read_cgm_csc(struct intel_crtc *crtc,
+			     struct intel_csc_matrix *csc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe;
+	u32 tmp;
+
+	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF01(pipe));
+	csc->coeff[0] = tmp & 0xffff;
+	csc->coeff[1] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF23(pipe));
+	csc->coeff[2] = tmp & 0xffff;
+	csc->coeff[3] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF45(pipe));
+	csc->coeff[4] = tmp & 0xffff;
+	csc->coeff[5] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF67(pipe));
+	csc->coeff[6] = tmp & 0xffff;
+	csc->coeff[7] = tmp >> 16;
+
+	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF8(pipe));
+	csc->coeff[8] = tmp & 0xffff;
+}
+
+static void chv_read_csc(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC)
+		chv_read_cgm_csc(crtc, &crtc_state->csc);
+}
+
 static void chv_assign_csc(struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
@@ -3329,6 +3364,7 @@ static const struct intel_color_funcs chv_color_funcs = {
 	.load_luts = chv_load_luts,
 	.read_luts = chv_read_luts,
 	.lut_equal = chv_lut_equal,
+	.read_csc = chv_read_csc,
 };
 
 static const struct intel_color_funcs i965_color_funcs = {
-- 
2.39.2

Re: [Intel-gfx] [PATCH 09/12] drm/i915: Implement chv cgm csc readout

[Nautiyal, Ankit K]

LGTM.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

On 3/29/2023 7:19 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Read out the csc matrix on chv, and stash the result into the
> correct spot in the crtc state.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_color.c | 36 ++++++++++++++++++++++
>   1 file changed, 36 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
> index 86b0d8260574..baadf62aabb4 100644
> --- a/drivers/gpu/drm/i915/display/intel_color.c
> +++ b/drivers/gpu/drm/i915/display/intel_color.c
> @@ -612,6 +612,41 @@ static void chv_load_cgm_csc(struct intel_crtc *crtc,
>   			  csc->coeff[8]);
>   }
>   
> +static void chv_read_cgm_csc(struct intel_crtc *crtc,
> +			     struct intel_csc_matrix *csc)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	enum pipe pipe = crtc->pipe;
> +	u32 tmp;
> +
> +	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF01(pipe));
> +	csc->coeff[0] = tmp & 0xffff;
> +	csc->coeff[1] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF23(pipe));
> +	csc->coeff[2] = tmp & 0xffff;
> +	csc->coeff[3] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF45(pipe));
> +	csc->coeff[4] = tmp & 0xffff;
> +	csc->coeff[5] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF67(pipe));
> +	csc->coeff[6] = tmp & 0xffff;
> +	csc->coeff[7] = tmp >> 16;
> +
> +	tmp = intel_de_read_fw(i915, CGM_PIPE_CSC_COEFF8(pipe));
> +	csc->coeff[8] = tmp & 0xffff;
> +}
> +
> +static void chv_read_csc(struct intel_crtc_state *crtc_state)
> +{
> +	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
> +
> +	if (crtc_state->cgm_mode & CGM_PIPE_MODE_CSC)
> +		chv_read_cgm_csc(crtc, &crtc_state->csc);
> +}
> +
>   static void chv_assign_csc(struct intel_crtc_state *crtc_state)
>   {
>   	struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
> @@ -3329,6 +3364,7 @@ static const struct intel_color_funcs chv_color_funcs = {
>   	.load_luts = chv_load_luts,
>   	.read_luts = chv_read_luts,
>   	.lut_equal = chv_lut_equal,
> +	.read_csc = chv_read_csc,
>   };
>   
>   static const struct intel_color_funcs i965_color_funcs = {

[Intel-gfx] [PATCH 10/12] drm/i915: Include the csc matrices in the crtc state dump

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Include the csc matrices in the state dump. The format being
hardware specific we just dump as hex for now. Might have
to think of some way to get a bit more human readable
output...

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 .../drm/i915/display/intel_crtc_state_dump.c  | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
index 766633566fd6..2c410ad53ccd 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
@@ -158,6 +158,41 @@ static void intel_dump_plane_state(const struct intel_plane_state *plane_state)
 			    DRM_RECT_ARG(&plane_state->uapi.dst));
 }
 
+static void
+ilk_dump_csc(struct drm_i915_private *i915, const char *name,
+	     const struct intel_csc_matrix *csc)
+{
+	int i;
+
+	drm_dbg_kms(&i915->drm,
+		    "%s: pre offsets: 0x%04x 0x%04x 0x%04x\n", name,
+		    csc->preoff[0], csc->preoff[1], csc->preoff[2]);
+
+	for (i = 0; i < 3; i++)
+		drm_dbg_kms(&i915->drm,
+			    "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
+
+	if (DISPLAY_VER(i915) < 7)
+		return;
+
+	drm_dbg_kms(&i915->drm,
+		    "%s: post offsets: 0x%04x 0x%04x 0x%04x\n", name,
+		    csc->postoff[0], csc->postoff[1], csc->postoff[2]);
+}
+
+static void
+chv_dump_csc(struct drm_i915_private *i915, const char *name,
+	     const struct intel_csc_matrix *csc)
+{
+	int i;
+
+	for (i = 0; i < 3; i++)
+		drm_dbg_kms(&i915->drm,
+			    "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
+}
+
 void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 			   struct intel_atomic_state *state,
 			   const char *context)
@@ -325,6 +360,14 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 		    pipe_config->post_csc_lut ?
 		    drm_color_lut_size(pipe_config->post_csc_lut) : 0);
 
+	if (DISPLAY_VER(i915) >= 11)
+		ilk_dump_csc(i915, "output csc", &pipe_config->output_csc);
+
+	if (!HAS_GMCH(i915))
+		ilk_dump_csc(i915, "pipe csc", &pipe_config->csc);
+	else if (IS_CHERRYVIEW(i915))
+		chv_dump_csc(i915, "cgm csc", &pipe_config->csc);
+
 dump_planes:
 	if (!state)
 		return;
-- 
2.39.2

Re: [Intel-gfx] [PATCH 10/12] drm/i915: Include the csc matrices in the crtc state dump

[Nautiyal, Ankit K]

On 3/29/2023 7:20 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Include the csc matrices in the state dump. The format being
> hardware specific we just dump as hex for now. Might have
> to think of some way to get a bit more human readable
> output...

Yeah if we can read coeff and print in decimals, will be really helpful. 
Can be taken as a separate patch.


With Checkpatch warning fixed (spaces around operands) while printing 
coeffs, this is:

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>


> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   .../drm/i915/display/intel_crtc_state_dump.c  | 43 +++++++++++++++++++
>   1 file changed, 43 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
> index 766633566fd6..2c410ad53ccd 100644
> --- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
> +++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
> @@ -158,6 +158,41 @@ static void intel_dump_plane_state(const struct intel_plane_state *plane_state)
>   			    DRM_RECT_ARG(&plane_state->uapi.dst));
>   }
>   
> +static void
> +ilk_dump_csc(struct drm_i915_private *i915, const char *name,
> +	     const struct intel_csc_matrix *csc)
> +{
> +	int i;
> +
> +	drm_dbg_kms(&i915->drm,
> +		    "%s: pre offsets: 0x%04x 0x%04x 0x%04x\n", name,
> +		    csc->preoff[0], csc->preoff[1], csc->preoff[2]);
> +
> +	for (i = 0; i < 3; i++)
> +		drm_dbg_kms(&i915->drm,
> +			    "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
> +			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
> +
> +	if (DISPLAY_VER(i915) < 7)
> +		return;
> +
> +	drm_dbg_kms(&i915->drm,
> +		    "%s: post offsets: 0x%04x 0x%04x 0x%04x\n", name,
> +		    csc->postoff[0], csc->postoff[1], csc->postoff[2]);
> +}
> +
> +static void
> +chv_dump_csc(struct drm_i915_private *i915, const char *name,
> +	     const struct intel_csc_matrix *csc)
> +{
> +	int i;
> +
> +	for (i = 0; i < 3; i++)
> +		drm_dbg_kms(&i915->drm,
> +			    "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
> +			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
> +}
> +
>   void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
>   			   struct intel_atomic_state *state,
>   			   const char *context)
> @@ -325,6 +360,14 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
>   		    pipe_config->post_csc_lut ?
>   		    drm_color_lut_size(pipe_config->post_csc_lut) : 0);
>   
> +	if (DISPLAY_VER(i915) >= 11)
> +		ilk_dump_csc(i915, "output csc", &pipe_config->output_csc);
> +
> +	if (!HAS_GMCH(i915))
> +		ilk_dump_csc(i915, "pipe csc", &pipe_config->csc);
> +	else if (IS_CHERRYVIEW(i915))
> +		chv_dump_csc(i915, "cgm csc", &pipe_config->csc);
> +
>   dump_planes:
>   	if (!state)
>   		return;

[Intel-gfx] [PATCH 11/12] drm/i915: Hook up csc into state checker

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Have the state checker validate that the csc matrices
look correct when read back from the hardware.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 21 ++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index aa22241c971c..763f7fdfb27c 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5643,6 +5643,24 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	} \
 } while (0)
 
+#define PIPE_CONF_CHECK_CSC(name) do { \
+	PIPE_CONF_CHECK_X(name.preoff[0]); \
+	PIPE_CONF_CHECK_X(name.preoff[1]); \
+	PIPE_CONF_CHECK_X(name.preoff[2]); \
+	PIPE_CONF_CHECK_X(name.coeff[0]); \
+	PIPE_CONF_CHECK_X(name.coeff[1]); \
+	PIPE_CONF_CHECK_X(name.coeff[2]); \
+	PIPE_CONF_CHECK_X(name.coeff[3]); \
+	PIPE_CONF_CHECK_X(name.coeff[4]); \
+	PIPE_CONF_CHECK_X(name.coeff[5]); \
+	PIPE_CONF_CHECK_X(name.coeff[6]); \
+	PIPE_CONF_CHECK_X(name.coeff[7]); \
+	PIPE_CONF_CHECK_X(name.coeff[8]); \
+	PIPE_CONF_CHECK_X(name.postoff[0]); \
+	PIPE_CONF_CHECK_X(name.postoff[1]); \
+	PIPE_CONF_CHECK_X(name.postoff[2]); \
+} while (0)
+
 #define PIPE_CONF_QUIRK(quirk) \
 	((current_config->quirks | pipe_config->quirks) & (quirk))
 
@@ -5740,6 +5758,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 		PIPE_CONF_CHECK_COLOR_LUT(pre_csc_lut, true);
 		PIPE_CONF_CHECK_COLOR_LUT(post_csc_lut, false);
 
+		PIPE_CONF_CHECK_CSC(csc);
+		PIPE_CONF_CHECK_CSC(output_csc);
+
 		if (current_config->active_planes) {
 			PIPE_CONF_CHECK_BOOL(has_psr);
 			PIPE_CONF_CHECK_BOOL(has_psr2);
-- 
2.39.2

Re: [Intel-gfx] [PATCH 11/12] drm/i915: Hook up csc into state checker

[Nautiyal, Ankit K]

LGTM.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

On 3/29/2023 7:20 PM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> Have the state checker validate that the csc matrices
> look correct when read back from the hardware.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_display.c | 21 ++++++++++++++++++++
>   1 file changed, 21 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index aa22241c971c..763f7fdfb27c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -5643,6 +5643,24 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
>   	} \
>   } while (0)
>   
> +#define PIPE_CONF_CHECK_CSC(name) do { \
> +	PIPE_CONF_CHECK_X(name.preoff[0]); \
> +	PIPE_CONF_CHECK_X(name.preoff[1]); \
> +	PIPE_CONF_CHECK_X(name.preoff[2]); \
> +	PIPE_CONF_CHECK_X(name.coeff[0]); \
> +	PIPE_CONF_CHECK_X(name.coeff[1]); \
> +	PIPE_CONF_CHECK_X(name.coeff[2]); \
> +	PIPE_CONF_CHECK_X(name.coeff[3]); \
> +	PIPE_CONF_CHECK_X(name.coeff[4]); \
> +	PIPE_CONF_CHECK_X(name.coeff[5]); \
> +	PIPE_CONF_CHECK_X(name.coeff[6]); \
> +	PIPE_CONF_CHECK_X(name.coeff[7]); \
> +	PIPE_CONF_CHECK_X(name.coeff[8]); \
> +	PIPE_CONF_CHECK_X(name.postoff[0]); \
> +	PIPE_CONF_CHECK_X(name.postoff[1]); \
> +	PIPE_CONF_CHECK_X(name.postoff[2]); \
> +} while (0)
> +
>   #define PIPE_CONF_QUIRK(quirk) \
>   	((current_config->quirks | pipe_config->quirks) & (quirk))
>   
> @@ -5740,6 +5758,9 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
>   		PIPE_CONF_CHECK_COLOR_LUT(pre_csc_lut, true);
>   		PIPE_CONF_CHECK_COLOR_LUT(post_csc_lut, false);
>   
> +		PIPE_CONF_CHECK_CSC(csc);
> +		PIPE_CONF_CHECK_CSC(output_csc);
> +
>   		if (current_config->active_planes) {
>   			PIPE_CONF_CHECK_BOOL(has_psr);
>   			PIPE_CONF_CHECK_BOOL(has_psr2);

[Intel-gfx] [PATCH 12/12] drm/i915: Do state check for color management changes

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

In order to validate LUT programming more thoroughly let's
do a state check for all color management updates as well.

Not sure we really want this outside CI. It is rather heavy
and color management updates could become rather common
with all the HDR/etc. stuff happening. Maybe we should have
an extra knob for this that we could enable in CI?

v2: Skip for initial_commit to avoid FDI dotclock
    sanity checks/etc. tripping up

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_modeset_verify.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_verify.c b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
index 842d70f0dfd2..9e4767e1b900 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_verify.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_verify.c
@@ -228,6 +228,8 @@ void intel_modeset_verify_crtc(struct intel_crtc *crtc,
 			       struct intel_crtc_state *new_crtc_state)
 {
 	if (!intel_crtc_needs_modeset(new_crtc_state) &&
+	    (!intel_crtc_needs_color_update(new_crtc_state) ||
+	     new_crtc_state->inherited) &&
 	    !intel_crtc_needs_fastset(new_crtc_state))
 		return;
 
-- 
2.39.2

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915: Add CSC state readout/check

[Patchwork]

== Series Details ==

Series: drm/i915: Add CSC state readout/check
URL   : https://patchwork.freedesktop.org/series/115794/
State : warning

== Summary ==

Error: dim checkpatch failed
01fd9db0cec9 drm/i915: Fix limited range csc matrix
e8f2d513ac2d drm/i915: Introduce intel_csc_matrix struct
40e623a7d092 drm/i915: Split chv_load_cgm_csc() into pieces
9fa8701c694e drm/i915: Start using struct intel_csc_matrix for chv cgm csc
3beb6ee5ef65 drm/i915: Store ilk+ csc matrices in the crtc state
-:124: WARNING:BRACES: braces {} are not necessary for any arm of this statement
#124: FILE: drivers/gpu/drm/i915/display/intel_color.c:408:
+	if (crtc_state->hw.ctm) {
[...]
+	} else {
[...]

total: 0 errors, 1 warnings, 0 checks, 168 lines checked
e9a4acb23fe0 drm/i915: Utilize crtc_state->csc on chv
-:65: WARNING:BRACES: braces {} are not necessary for any arm of this statement
#65: FILE: drivers/gpu/drm/i915/display/intel_color.c:479:
+	if (crtc_state->hw.ctm) {
[...]
+	} else {
[...]

total: 0 errors, 1 warnings, 0 checks, 71 lines checked
2d2e4f955511 drm/i915: Sprinke a few sanity check WARNS during csc assignment
6628bd2a5ab0 drm/i915: Add hardware csc readout for ilk+
249694979e1c drm/i915: Implement chv cgm csc readout
eed40cdf82d8 drm/i915: Include the csc matrices in the crtc state dump
-:37: CHECK:SPACING: spaces preferred around that '*' (ctx:VxV)
#37: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:174:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                ^

-:37: CHECK:SPACING: spaces preferred around that '+' (ctx:VxV)
#37: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:174:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                  ^

-:37: CHECK:SPACING: spaces preferred around that '*' (ctx:VxV)
#37: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:174:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                   ^

-:37: CHECK:SPACING: spaces preferred around that '+' (ctx:VxV)
#37: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:174:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                     ^

-:37: CHECK:SPACING: spaces preferred around that '*' (ctx:VxV)
#37: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:174:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                                      ^

-:37: CHECK:SPACING: spaces preferred around that '+' (ctx:VxV)
#37: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:174:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                                        ^

-:56: CHECK:SPACING: spaces preferred around that '*' (ctx:VxV)
#56: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:193:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                ^

-:56: CHECK:SPACING: spaces preferred around that '+' (ctx:VxV)
#56: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:193:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                  ^

-:56: CHECK:SPACING: spaces preferred around that '*' (ctx:VxV)
#56: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:193:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                   ^

-:56: CHECK:SPACING: spaces preferred around that '+' (ctx:VxV)
#56: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:193:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                     ^

-:56: CHECK:SPACING: spaces preferred around that '*' (ctx:VxV)
#56: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:193:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                                      ^

-:56: CHECK:SPACING: spaces preferred around that '+' (ctx:VxV)
#56: FILE: drivers/gpu/drm/i915/display/intel_crtc_state_dump.c:193:
+			    csc->coeff[3*i+0], csc->coeff[3*i+1], csc->coeff[3*i+2]);
 			                                                        ^

total: 0 errors, 0 warnings, 12 checks, 55 lines checked
5c95dfdce9d4 drm/i915: Hook up csc into state checker
-:22: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'name' - possible side-effects?
#22: FILE: drivers/gpu/drm/i915/display/intel_display.c:5646:
+#define PIPE_CONF_CHECK_CSC(name) do { \
+	PIPE_CONF_CHECK_X(name.preoff[0]); \
+	PIPE_CONF_CHECK_X(name.preoff[1]); \
+	PIPE_CONF_CHECK_X(name.preoff[2]); \
+	PIPE_CONF_CHECK_X(name.coeff[0]); \
+	PIPE_CONF_CHECK_X(name.coeff[1]); \
+	PIPE_CONF_CHECK_X(name.coeff[2]); \
+	PIPE_CONF_CHECK_X(name.coeff[3]); \
+	PIPE_CONF_CHECK_X(name.coeff[4]); \
+	PIPE_CONF_CHECK_X(name.coeff[5]); \
+	PIPE_CONF_CHECK_X(name.coeff[6]); \
+	PIPE_CONF_CHECK_X(name.coeff[7]); \
+	PIPE_CONF_CHECK_X(name.coeff[8]); \
+	PIPE_CONF_CHECK_X(name.postoff[0]); \
+	PIPE_CONF_CHECK_X(name.postoff[1]); \
+	PIPE_CONF_CHECK_X(name.postoff[2]); \
+} while (0)

total: 0 errors, 0 warnings, 1 checks, 33 lines checked
7ae44cfcf962 drm/i915: Do state check for color management changes

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915: Add CSC state readout/check

[Patchwork]

== Series Details ==

Series: drm/i915: Add CSC state readout/check
URL   : https://patchwork.freedesktop.org/series/115794/
State : warning

== Summary ==

Error: dim sparse failed
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: un

[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Add CSC state readout/check

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 5539 bytes --]

== Series Details ==

Series: drm/i915: Add CSC state readout/check
URL   : https://patchwork.freedesktop.org/series/115794/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_12936 -> Patchwork_115794v1
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/index.html

Participating hosts (37 -> 35)
------------------------------

  Missing    (2): fi-kbl-soraka fi-snb-2520m 

Known issues
------------

  Here are the changes found in Patchwork_115794v1 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_selftest@live@gt_lrc:
    - bat-dg2-11:         [PASS][1] -> [INCOMPLETE][2] ([i915#7609] / [i915#7913])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/bat-dg2-11/igt@i915_selftest@live@gt_lrc.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-dg2-11/igt@i915_selftest@live@gt_lrc.html

  * igt@i915_selftest@live@slpc:
    - bat-rpls-1:         NOTRUN -> [DMESG-FAIL][3] ([i915#6367] / [i915#7996])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-rpls-1/igt@i915_selftest@live@slpc.html

  * igt@kms_chamelium_hpd@common-hpd-after-suspend:
    - fi-bsw-nick:        NOTRUN -> [SKIP][4] ([fdo#109271]) +1 similar issue
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/fi-bsw-nick/igt@kms_chamelium_hpd@common-hpd-after-suspend.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence:
    - bat-dg2-11:         NOTRUN -> [SKIP][5] ([i915#5354]) +2 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-dg2-11/igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence.html

  * igt@kms_pipe_crc_basic@nonblocking-crc@pipe-d-dp-1:
    - bat-dg2-8:          [PASS][6] -> [FAIL][7] ([i915#7932])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/bat-dg2-8/igt@kms_pipe_crc_basic@nonblocking-crc@pipe-d-dp-1.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-dg2-8/igt@kms_pipe_crc_basic@nonblocking-crc@pipe-d-dp-1.html

  
#### Possible fixes ####

  * igt@i915_selftest@live@execlists:
    - fi-bsw-nick:        [ABORT][8] ([i915#7911] / [i915#7913]) -> [PASS][9]
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/fi-bsw-nick/igt@i915_selftest@live@execlists.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/fi-bsw-nick/igt@i915_selftest@live@execlists.html

  * igt@i915_selftest@live@mman:
    - bat-rpls-1:         [TIMEOUT][10] ([i915#6794]) -> [PASS][11]
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/bat-rpls-1/igt@i915_selftest@live@mman.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-rpls-1/igt@i915_selftest@live@mman.html

  * igt@i915_selftest@live@slpc:
    - bat-rplp-1:         [DMESG-FAIL][12] ([i915#6367] / [i915#7913]) -> [PASS][13]
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/bat-rplp-1/igt@i915_selftest@live@slpc.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-rplp-1/igt@i915_selftest@live@slpc.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence@pipe-d-dp-1:
    - bat-dg2-8:          [FAIL][14] ([i915#7932]) -> [PASS][15]
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/bat-dg2-8/igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence@pipe-d-dp-1.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/bat-dg2-8/igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence@pipe-d-dp-1.html

  
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [i915#5354]: https://gitlab.freedesktop.org/drm/intel/issues/5354
  [i915#6367]: https://gitlab.freedesktop.org/drm/intel/issues/6367
  [i915#6794]: https://gitlab.freedesktop.org/drm/intel/issues/6794
  [i915#7609]: https://gitlab.freedesktop.org/drm/intel/issues/7609
  [i915#7911]: https://gitlab.freedesktop.org/drm/intel/issues/7911
  [i915#7913]: https://gitlab.freedesktop.org/drm/intel/issues/7913
  [i915#7932]: https://gitlab.freedesktop.org/drm/intel/issues/7932
  [i915#7996]: https://gitlab.freedesktop.org/drm/intel/issues/7996


Build changes
-------------

  * Linux: CI_DRM_12936 -> Patchwork_115794v1

  CI-20190529: 20190529
  CI_DRM_12936: 906438caae695f109636f82e2d1845a258f57d8b @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7226: 41be8b4ab86f9e11388c10366dfd71e5032589c1 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_115794v1: 906438caae695f109636f82e2d1845a258f57d8b @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

b3184fd06e30 drm/i915: Do state check for color management changes
670191884f23 drm/i915: Hook up csc into state checker
6bcfe201fd6c drm/i915: Include the csc matrices in the crtc state dump
e93adc454104 drm/i915: Implement chv cgm csc readout
11bbed66d0e6 drm/i915: Add hardware csc readout for ilk+
eb49122bdeb3 drm/i915: Sprinke a few sanity check WARNS during csc assignment
1ac6f347d1ac drm/i915: Utilize crtc_state->csc on chv
43ebad2e56f7 drm/i915: Store ilk+ csc matrices in the crtc state
bf5914ca5a02 drm/i915: Start using struct intel_csc_matrix for chv cgm csc
f5a81829efbf drm/i915: Split chv_load_cgm_csc() into pieces
d5e6b118a522 drm/i915: Introduce intel_csc_matrix struct
828a87093753 drm/i915: Fix limited range csc matrix

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/index.html

[-- Attachment #2: Type: text/html, Size: 6694 bytes --]

[Intel-gfx] ✓ Fi.CI.IGT: success for drm/i915: Add CSC state readout/check

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 11781 bytes --]

== Series Details ==

Series: drm/i915: Add CSC state readout/check
URL   : https://patchwork.freedesktop.org/series/115794/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_12936_full -> Patchwork_115794v1_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Participating hosts (7 -> 7)
------------------------------

  No changes in participating hosts

Known issues
------------

  Here are the changes found in Patchwork_115794v1_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-180:
    - shard-snb:          [PASS][1] -> [SKIP][2] ([fdo#109271]) +1 similar issue
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-snb2/igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-180.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-snb7/igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-180.html

  * igt@kms_ccs@pipe-a-bad-pixel-format-y_tiled_gen12_mc_ccs:
    - shard-apl:          NOTRUN -> [SKIP][3] ([fdo#109271] / [i915#3886])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl3/igt@kms_ccs@pipe-a-bad-pixel-format-y_tiled_gen12_mc_ccs.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size:
    - shard-apl:          [PASS][4] -> [FAIL][5] ([i915#2346])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-apl3/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size.html
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl7/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size.html

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-draw-mmap-gtt:
    - shard-apl:          NOTRUN -> [SKIP][6] ([fdo#109271]) +8 similar issues
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl3/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-draw-mmap-gtt.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area:
    - shard-apl:          NOTRUN -> [SKIP][7] ([fdo#109271] / [i915#658])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl3/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area.html

  
#### Possible fixes ####

  * {igt@gem_barrier_race@remote-request@rcs0}:
    - {shard-tglu}:       [ABORT][8] ([i915#8211]) -> [PASS][9]
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-tglu-2/igt@gem_barrier_race@remote-request@rcs0.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-tglu-9/igt@gem_barrier_race@remote-request@rcs0.html

  * igt@gem_exec_endless@dispatch@vecs0:
    - {shard-tglu}:       [TIMEOUT][10] ([i915#3778]) -> [PASS][11]
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-tglu-10/igt@gem_exec_endless@dispatch@vecs0.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-tglu-10/igt@gem_exec_endless@dispatch@vecs0.html

  * igt@gem_exec_fair@basic-deadline:
    - shard-apl:          [FAIL][12] ([i915#2846]) -> [PASS][13]
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-apl1/igt@gem_exec_fair@basic-deadline.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl1/igt@gem_exec_fair@basic-deadline.html

  * igt@gem_exec_fair@basic-none-solo@rcs0:
    - shard-apl:          [FAIL][14] ([i915#2842]) -> [PASS][15]
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-apl7/igt@gem_exec_fair@basic-none-solo@rcs0.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl1/igt@gem_exec_fair@basic-none-solo@rcs0.html

  * igt@gem_exec_fair@basic-pace-share@rcs0:
    - shard-glk:          [FAIL][16] ([i915#2842]) -> [PASS][17]
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-glk3/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-glk5/igt@gem_exec_fair@basic-pace-share@rcs0.html

  * igt@kms_cursor_crc@cursor-suspend@pipe-c-dp-1:
    - shard-apl:          [ABORT][18] ([i915#180]) -> [PASS][19]
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-apl1/igt@kms_cursor_crc@cursor-suspend@pipe-c-dp-1.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-apl3/igt@kms_cursor_crc@cursor-suspend@pipe-c-dp-1.html

  * {igt@kms_cursor_edge_walk@256x256-top-edge@pipe-a-hdmi-a-1}:
    - shard-glk:          [DMESG-FAIL][20] ([i915#118]) -> [PASS][21]
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-glk7/igt@kms_cursor_edge_walk@256x256-top-edge@pipe-a-hdmi-a-1.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-glk1/igt@kms_cursor_edge_walk@256x256-top-edge@pipe-a-hdmi-a-1.html

  * {igt@kms_draw_crc@draw-method-blt@xrgb2101010-ytiled}:
    - shard-glk:          [DMESG-WARN][22] ([i915#7936]) -> [PASS][23]
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-glk7/igt@kms_draw_crc@draw-method-blt@xrgb2101010-ytiled.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-glk7/igt@kms_draw_crc@draw-method-blt@xrgb2101010-ytiled.html

  * igt@kms_fbcon_fbt@fbc-suspend:
    - {shard-tglu}:       [FAIL][24] ([i915#4767]) -> [PASS][25]
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-tglu-10/igt@kms_fbcon_fbt@fbc-suspend.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-tglu-10/igt@kms_fbcon_fbt@fbc-suspend.html

  * igt@perf_pmu@busy@vecs0:
    - {shard-dg1}:        [FAIL][26] ([i915#4349]) -> [PASS][27]
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12936/shard-dg1-15/igt@perf_pmu@busy@vecs0.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/shard-dg1-16/igt@perf_pmu@busy@vecs0.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109274]: https://bugs.freedesktop.org/show_bug.cgi?id=109274
  [fdo#109280]: https://bugs.freedesktop.org/show_bug.cgi?id=109280
  [fdo#109289]: https://bugs.freedesktop.org/show_bug.cgi?id=109289
  [fdo#111615]: https://bugs.freedesktop.org/show_bug.cgi?id=111615
  [fdo#111825]: https://bugs.freedesktop.org/show_bug.cgi?id=111825
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [fdo#112283]: https://bugs.freedesktop.org/show_bug.cgi?id=112283
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1397]: https://gitlab.freedesktop.org/drm/intel/issues/1397
  [i915#1755]: https://gitlab.freedesktop.org/drm/intel/issues/1755
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1937]: https://gitlab.freedesktop.org/drm/intel/issues/1937
  [i915#2346]: https://gitlab.freedesktop.org/drm/intel/issues/2346
  [i915#2434]: https://gitlab.freedesktop.org/drm/intel/issues/2434
  [i915#2437]: https://gitlab.freedesktop.org/drm/intel/issues/2437
  [i915#2527]: https://gitlab.freedesktop.org/drm/intel/issues/2527
  [i915#2575]: https://gitlab.freedesktop.org/drm/intel/issues/2575
  [i915#2587]: https://gitlab.freedesktop.org/drm/intel/issues/2587
  [i915#2672]: https://gitlab.freedesktop.org/drm/intel/issues/2672
  [i915#2681]: https://gitlab.freedesktop.org/drm/intel/issues/2681
  [i915#2705]: https://gitlab.freedesktop.org/drm/intel/issues/2705
  [i915#2842]: https://gitlab.freedesktop.org/drm/intel/issues/2842
  [i915#2846]: https://gitlab.freedesktop.org/drm/intel/issues/2846
  [i915#3281]: https://gitlab.freedesktop.org/drm/intel/issues/3281
  [i915#3297]: https://gitlab.freedesktop.org/drm/intel/issues/3297
  [i915#3299]: https://gitlab.freedesktop.org/drm/intel/issues/3299
  [i915#3359]: https://gitlab.freedesktop.org/drm/intel/issues/3359
  [i915#3458]: https://gitlab.freedesktop.org/drm/intel/issues/3458
  [i915#3539]: https://gitlab.freedesktop.org/drm/intel/issues/3539
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#3591]: https://gitlab.freedesktop.org/drm/intel/issues/3591
  [i915#3637]: https://gitlab.freedesktop.org/drm/intel/issues/3637
  [i915#3638]: https://gitlab.freedesktop.org/drm/intel/issues/3638
  [i915#3689]: https://gitlab.freedesktop.org/drm/intel/issues/3689
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#3778]: https://gitlab.freedesktop.org/drm/intel/issues/3778
  [i915#3886]: https://gitlab.freedesktop.org/drm/intel/issues/3886
  [i915#3952]: https://gitlab.freedesktop.org/drm/intel/issues/3952
  [i915#4077]: https://gitlab.freedesktop.org/drm/intel/issues/4077
  [i915#4078]: https://gitlab.freedesktop.org/drm/intel/issues/4078
  [i915#4079]: https://gitlab.freedesktop.org/drm/intel/issues/4079
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4212]: https://gitlab.freedesktop.org/drm/intel/issues/4212
  [i915#4270]: https://gitlab.freedesktop.org/drm/intel/issues/4270
  [i915#4281]: https://gitlab.freedesktop.org/drm/intel/issues/4281
  [i915#4349]: https://gitlab.freedesktop.org/drm/intel/issues/4349
  [i915#4538]: https://gitlab.freedesktop.org/drm/intel/issues/4538
  [i915#4579]: https://gitlab.freedesktop.org/drm/intel/issues/4579
  [i915#4767]: https://gitlab.freedesktop.org/drm/intel/issues/4767
  [i915#4833]: https://gitlab.freedesktop.org/drm/intel/issues/4833
  [i915#4852]: https://gitlab.freedesktop.org/drm/intel/issues/4852
  [i915#4860]: https://gitlab.freedesktop.org/drm/intel/issues/4860
  [i915#4873]: https://gitlab.freedesktop.org/drm/intel/issues/4873
  [i915#4880]: https://gitlab.freedesktop.org/drm/intel/issues/4880
  [i915#5176]: https://gitlab.freedesktop.org/drm/intel/issues/5176
  [i915#5235]: https://gitlab.freedesktop.org/drm/intel/issues/5235
  [i915#5286]: https://gitlab.freedesktop.org/drm/intel/issues/5286
  [i915#5289]: https://gitlab.freedesktop.org/drm/intel/issues/5289
  [i915#5563]: https://gitlab.freedesktop.org/drm/intel/issues/5563
  [i915#6095]: https://gitlab.freedesktop.org/drm/intel/issues/6095
  [i915#6268]: https://gitlab.freedesktop.org/drm/intel/issues/6268
  [i915#6301]: https://gitlab.freedesktop.org/drm/intel/issues/6301
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#6953]: https://gitlab.freedesktop.org/drm/intel/issues/6953
  [i915#7116]: https://gitlab.freedesktop.org/drm/intel/issues/7116
  [i915#7561]: https://gitlab.freedesktop.org/drm/intel/issues/7561
  [i915#7711]: https://gitlab.freedesktop.org/drm/intel/issues/7711
  [i915#7828]: https://gitlab.freedesktop.org/drm/intel/issues/7828
  [i915#7936]: https://gitlab.freedesktop.org/drm/intel/issues/7936
  [i915#8155]: https://gitlab.freedesktop.org/drm/intel/issues/8155
  [i915#8211]: https://gitlab.freedesktop.org/drm/intel/issues/8211
  [i915#8292]: https://gitlab.freedesktop.org/drm/intel/issues/8292
  [i915#8308]: https://gitlab.freedesktop.org/drm/intel/issues/8308


Build changes
-------------

  * Linux: CI_DRM_12936 -> Patchwork_115794v1

  CI-20190529: 20190529
  CI_DRM_12936: 906438caae695f109636f82e2d1845a258f57d8b @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7226: 41be8b4ab86f9e11388c10366dfd71e5032589c1 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_115794v1: 906438caae695f109636f82e2d1845a258f57d8b @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_115794v1/index.html

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