diff mbox

[v9,1/7] drm/i915/guc: Move GuC WOPCM related code into separate files

Message ID 1518131035-24108-1-git-send-email-yaodong.li@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jackie Li Feb. 8, 2018, 11:03 p.m. UTC
intel_guc_reg.h should only include definition for GuC registers and
related register bits. Non-register related GuC WOPCM macro definitions
should not be defined in intel_guc_reg.h.

This patch cleans up intel_guc_reg.h and moves GuC WOPCM related code into
new created separate files as future patches will increase the complexity
of determining the GuC WOPCM offset and size.

v8:
 - Fixed naming, coding style issues and typo in commit message (Sagar)
 - Updated commit message to explain why we need create new file for GuC
   WOPCM related code (Chris)

v9:
 - Corrected kernel-doc format (Sagar)
 - Simplified commit message (Michal)
 - Updated license of new created files to use SPDX (Michal)
 - Updated macros and added more comments to be reader friendly (Michal)

Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> (v8)
Signed-off-by: Jackie Li <yaodong.li@intel.com>
---
 drivers/gpu/drm/i915/Makefile          |  1 +
 drivers/gpu/drm/i915/intel_guc.c       | 11 --------
 drivers/gpu/drm/i915/intel_guc.h       |  2 +-
 drivers/gpu/drm/i915/intel_guc_reg.h   |  4 ---
 drivers/gpu/drm/i915/intel_guc_wopcm.c | 48 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_guc_wopcm.h | 45 +++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_uc.c        |  2 +-
 drivers/gpu/drm/i915/intel_uc_fw.c     |  2 +-
 8 files changed, 97 insertions(+), 18 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/intel_guc_wopcm.c
 create mode 100644 drivers/gpu/drm/i915/intel_guc_wopcm.h

Comments

Michal Wajdeczko Feb. 9, 2018, 4:46 p.m. UTC | #1
On Fri, 09 Feb 2018 00:03:49 +0100, Jackie Li <yaodong.li@intel.com> wrote:

> intel_guc_reg.h should only include definition for GuC registers and
> related register bits. Non-register related GuC WOPCM macro definitions
> should not be defined in intel_guc_reg.h.
>
> This patch cleans up intel_guc_reg.h and moves GuC WOPCM related code  
> into
> new created separate files as future patches will increase the complexity
> of determining the GuC WOPCM offset and size.
>
> v8:
>  - Fixed naming, coding style issues and typo in commit message (Sagar)
>  - Updated commit message to explain why we need create new file for GuC
>    WOPCM related code (Chris)
>
> v9:
>  - Corrected kernel-doc format (Sagar)
>  - Simplified commit message (Michal)
>  - Updated license of new created files to use SPDX (Michal)
>  - Updated macros and added more comments to be reader friendly (Michal)
>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> (v8)
> Signed-off-by: Jackie Li <yaodong.li@intel.com>
> ---
>  drivers/gpu/drm/i915/Makefile          |  1 +
>  drivers/gpu/drm/i915/intel_guc.c       | 11 --------
>  drivers/gpu/drm/i915/intel_guc.h       |  2 +-
>  drivers/gpu/drm/i915/intel_guc_reg.h   |  4 ---
>  drivers/gpu/drm/i915/intel_guc_wopcm.c | 48  
> ++++++++++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/intel_guc_wopcm.h | 45  
> +++++++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/intel_uc.c        |  2 +-
>  drivers/gpu/drm/i915/intel_uc_fw.c     |  2 +-
>  8 files changed, 97 insertions(+), 18 deletions(-)
>  create mode 100644 drivers/gpu/drm/i915/intel_guc_wopcm.c
>  create mode 100644 drivers/gpu/drm/i915/intel_guc_wopcm.h
>
> diff --git a/drivers/gpu/drm/i915/Makefile  
> b/drivers/gpu/drm/i915/Makefile
> index f55cc02..418d96b 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -89,6 +89,7 @@ i915-y += intel_uc.o \
>  	  intel_guc_fw.o \
>  	  intel_guc_log.o \
>  	  intel_guc_submission.o \
> +	  intel_guc_wopcm.o \
>  	  intel_huc.o
> # autogenerated null render state
> diff --git a/drivers/gpu/drm/i915/intel_guc.c  
> b/drivers/gpu/drm/i915/intel_guc.c
> index 21140cc..9f45e6d 100644
> --- a/drivers/gpu/drm/i915/intel_guc.c
> +++ b/drivers/gpu/drm/i915/intel_guc.c
> @@ -509,14 +509,3 @@ struct i915_vma *intel_guc_allocate_vma(struct  
> intel_guc *guc, u32 size)
>  	i915_gem_object_put(obj);
>  	return vma;
>  }
> -
> -u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv)
> -{
> -	u32 wopcm_size = GUC_WOPCM_TOP;
> -
> -	/* On BXT, the top of WOPCM is reserved for RC6 context */
> -	if (IS_GEN9_LP(dev_priv))
> -		wopcm_size -= BXT_GUC_WOPCM_RC6_RESERVED;
> -
> -	return wopcm_size;
> -}
> diff --git a/drivers/gpu/drm/i915/intel_guc.h  
> b/drivers/gpu/drm/i915/intel_guc.h
> index 52856a9..9e0a97e 100644
> --- a/drivers/gpu/drm/i915/intel_guc.h
> +++ b/drivers/gpu/drm/i915/intel_guc.h
> @@ -31,6 +31,7 @@
>  #include "intel_guc_ct.h"
>  #include "intel_guc_log.h"
>  #include "intel_guc_reg.h"
> +#include "intel_guc_wopcm.h"
>  #include "intel_uc_fw.h"
>  #include "i915_vma.h"
> @@ -130,6 +131,5 @@ int intel_guc_auth_huc(struct intel_guc *guc, u32  
> rsa_offset);
>  int intel_guc_suspend(struct drm_i915_private *dev_priv);
>  int intel_guc_resume(struct drm_i915_private *dev_priv);
>  struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32  
> size);
> -u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv);
> #endif
> diff --git a/drivers/gpu/drm/i915/intel_guc_reg.h  
> b/drivers/gpu/drm/i915/intel_guc_reg.h
> index 19a9247..1f52fb8 100644
> --- a/drivers/gpu/drm/i915/intel_guc_reg.h
> +++ b/drivers/gpu/drm/i915/intel_guc_reg.h
> @@ -68,7 +68,6 @@
>  #define DMA_GUC_WOPCM_OFFSET		_MMIO(0xc340)
>  #define   HUC_LOADING_AGENT_VCR		  (0<<1)
>  #define   HUC_LOADING_AGENT_GUC		  (1<<1)
> -#define   GUC_WOPCM_OFFSET_VALUE	  0x80000	/* 512KB */
>  #define GUC_MAX_IDLE_COUNT		_MMIO(0xC3E4)
> #define HUC_STATUS2             _MMIO(0xD3B0)
> @@ -76,9 +75,6 @@
> /* Defines WOPCM space available to GuC firmware */
>  #define GUC_WOPCM_SIZE			_MMIO(0xc050)
> -/* GuC addresses below GUC_WOPCM_TOP don't map through the GTT */
> -#define   GUC_WOPCM_TOP			  (0x80 << 12)	/* 512KB */
> -#define   BXT_GUC_WOPCM_RC6_RESERVED	  (0x10 << 12)	/* 64KB  */
> /* GuC addresses above GUC_GGTT_TOP also don't map through the GTT */
>  #define GUC_GGTT_TOP			0xFEE00000
> diff --git a/drivers/gpu/drm/i915/intel_guc_wopcm.c  
> b/drivers/gpu/drm/i915/intel_guc_wopcm.c
> new file mode 100644
> index 0000000..c3d54f8
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/intel_guc_wopcm.c
> @@ -0,0 +1,48 @@
> +/*
> + * SPDX-License-Identifier: MIT
> + *
> + * Copyright © 2017-2018 Intel Corporation
> + *

Do we really want to keep legacy license text?
Note that in other file (intel_lrc_reg.h) we have only SPDX tag.

> + * Permission is hereby granted, free of charge, to any person  
> obtaining a
> + * copy of this software and associated documentation files (the  
> "Software"),
> + * to deal in the Software without restriction, including without  
> limitation
> + * the rights to use, copy, modify, merge, publish, distribute,  
> sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice (including the  
> next
> + * paragraph) shall be included in all copies or substantial portions  
> of the
> + * Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,  
> EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF  
> MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT  
> SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR  
> OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,  
> ARISING
> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER  
> DEALINGS
> + * IN THE SOFTWARE.
> + *
> + */
> +
> +#include "intel_guc_wopcm.h"
> +#include "i915_drv.h"
> +
> +/**
> + * intel_guc_wopcm_size() - Get the size of GuC WOPCM.
> + * @guc: intel guc.
> + *
> + * Get the platform specific GuC WOPCM size.
> + *
> + * Return: size of the GuC WOPCM.
> + */
> +u32 intel_guc_wopcm_size(struct intel_guc *guc)
> +{
> +	struct drm_i915_private *i915 = guc_to_i915(guc);
> +	u32 size = GUC_WOPCM_TOP;
> +
> +	/* On BXT, the top of WOPCM is reserved for RC6 context */
> +	if (IS_GEN9_LP(i915))
> +		size -= BXT_GUC_WOPCM_RC6_RESERVED;
> +
> +	return size;
> +}
> diff --git a/drivers/gpu/drm/i915/intel_guc_wopcm.h  
> b/drivers/gpu/drm/i915/intel_guc_wopcm.h
> new file mode 100644
> index 0000000..7323604
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/intel_guc_wopcm.h
> @@ -0,0 +1,45 @@
> +/*
> + * SPDX-License-Identifier: MIT
> + *
> + * Copyright © 2017-2018 Intel Corporation
> + *

Same here.

> + * Permission is hereby granted, free of charge, to any person  
> obtaining a
> + * copy of this software and associated documentation files (the  
> "Software"),
> + * to deal in the Software without restriction, including without  
> limitation
> + * the rights to use, copy, modify, merge, publish, distribute,  
> sublicense,
> + * and/or sell copies of the Software, and to permit persons to whom the
> + * Software is furnished to do so, subject to the following conditions:
> + *
> + * The above copyright notice and this permission notice (including the  
> next
> + * paragraph) shall be included in all copies or substantial portions  
> of the
> + * Software.
> + *
> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,  
> EXPRESS OR
> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF  
> MERCHANTABILITY,
> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT  
> SHALL
> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR  
> OTHER
> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,  
> ARISING
> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER  
> DEALINGS
> + * IN THE SOFTWARE.
> + *
> + */
> +
> +#ifndef _INTEL_GUC_WOPCM_H_
> +#define _INTEL_GUC_WOPCM_H_
> +
> +#include <linux/types.h>
> +
> +struct intel_guc;
> +
> +/* 512KB static offset from WOPCM base. */
> +#define GUC_WOPCM_OFFSET_VALUE		(512 << 10)
> +/*
> + * 512KB static GuC WOPCM size from GUC_WOPCM_OFFSET_VALUE to the end  
> of GuC
> + * WOPCM. GuC addresses below GUC_WOPCM_TOP don't map through the GTT.
> + */
> +#define GUC_WOPCM_TOP			(512 << 10)
> +#define BXT_GUC_WOPCM_RC6_RESERVED	(64 << 10)
> +
> +u32 intel_guc_wopcm_size(struct intel_guc *guc);
> +
> +#endif
> diff --git a/drivers/gpu/drm/i915/intel_uc.c  
> b/drivers/gpu/drm/i915/intel_uc.c
> index 9f1bac6..1b2831b 100644
> --- a/drivers/gpu/drm/i915/intel_uc.c
> +++ b/drivers/gpu/drm/i915/intel_uc.c
> @@ -340,7 +340,7 @@ int intel_uc_init_hw(struct drm_i915_private  
> *dev_priv)
>  	gen9_reset_guc_interrupts(dev_priv);
> 	/* init WOPCM */
> -	I915_WRITE(GUC_WOPCM_SIZE, intel_guc_wopcm_size(dev_priv));
> +	I915_WRITE(GUC_WOPCM_SIZE, intel_guc_wopcm_size(guc));
>  	I915_WRITE(DMA_GUC_WOPCM_OFFSET,
>  		   GUC_WOPCM_OFFSET_VALUE | HUC_LOADING_AGENT_GUC);
> diff --git a/drivers/gpu/drm/i915/intel_uc_fw.c  
> b/drivers/gpu/drm/i915/intel_uc_fw.c
> index 784eff9..24945cf 100644
> --- a/drivers/gpu/drm/i915/intel_uc_fw.c
> +++ b/drivers/gpu/drm/i915/intel_uc_fw.c
> @@ -97,7 +97,7 @@ void intel_uc_fw_fetch(struct drm_i915_private  
> *dev_priv,
> 	/* Header and uCode will be loaded to WOPCM */
>  	size = uc_fw->header_size + uc_fw->ucode_size;
> -	if (size > intel_guc_wopcm_size(dev_priv)) {
> +	if (size > intel_guc_wopcm_size(&dev_priv->guc)) {
>  		DRM_WARN("%s: Firmware is too large to fit in WOPCM\n",
>  			 intel_uc_fw_type_repr(uc_fw->type));
>  		err = -E2BIG;
Jackie Li Feb. 9, 2018, 7:38 p.m. UTC | #2
On 02/09/2018 08:46 AM, Michal Wajdeczko wrote:
>> --- /dev/null
>> +++ b/drivers/gpu/drm/i915/intel_guc_wopcm.c
>> @@ -0,0 +1,48 @@
>> +/*
>> + * SPDX-License-Identifier: MIT
>> + *
>> + * Copyright © 2017-2018 Intel Corporation
>> + *
>
> Do we really want to keep legacy license text?
> Note that in other file (intel_lrc_reg.h) we have only SPDX tag.
Same question here. Updated based on the comments.

Regards,
-Jackie
Michel Thierry Feb. 9, 2018, 8:59 p.m. UTC | #3
On 2/9/2018 11:38 AM, Yaodong Li wrote:
> On 02/09/2018 08:46 AM, Michal Wajdeczko wrote:
>>> --- /dev/null
>>> +++ b/drivers/gpu/drm/i915/intel_guc_wopcm.c
>>> @@ -0,0 +1,48 @@
>>> +/*
>>> + * SPDX-License-Identifier: MIT
>>> + *
>>> + * Copyright © 2017-2018 Intel Corporation
>>> + *
>>
>> Do we really want to keep legacy license text?
>> Note that in other file (intel_lrc_reg.h) we have only SPDX tag.
> Same question here. Updated based on the comments.
> 

Hi,

After much deliberation[1], the consensus was to use just this:

/*
  * SPDX-License-Identifier: MIT
  *
  * Copyright © 201x-201x Intel Corporation
  */


[1]: 
https://lists.freedesktop.org/archives/intel-gfx/2018-January/153469.html

> Regards,
> -Jackie
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index f55cc02..418d96b 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -89,6 +89,7 @@  i915-y += intel_uc.o \
 	  intel_guc_fw.o \
 	  intel_guc_log.o \
 	  intel_guc_submission.o \
+	  intel_guc_wopcm.o \
 	  intel_huc.o
 
 # autogenerated null render state
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
index 21140cc..9f45e6d 100644
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -509,14 +509,3 @@  struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size)
 	i915_gem_object_put(obj);
 	return vma;
 }
-
-u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv)
-{
-	u32 wopcm_size = GUC_WOPCM_TOP;
-
-	/* On BXT, the top of WOPCM is reserved for RC6 context */
-	if (IS_GEN9_LP(dev_priv))
-		wopcm_size -= BXT_GUC_WOPCM_RC6_RESERVED;
-
-	return wopcm_size;
-}
diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h
index 52856a9..9e0a97e 100644
--- a/drivers/gpu/drm/i915/intel_guc.h
+++ b/drivers/gpu/drm/i915/intel_guc.h
@@ -31,6 +31,7 @@ 
 #include "intel_guc_ct.h"
 #include "intel_guc_log.h"
 #include "intel_guc_reg.h"
+#include "intel_guc_wopcm.h"
 #include "intel_uc_fw.h"
 #include "i915_vma.h"
 
@@ -130,6 +131,5 @@  int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
 int intel_guc_suspend(struct drm_i915_private *dev_priv);
 int intel_guc_resume(struct drm_i915_private *dev_priv);
 struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
-u32 intel_guc_wopcm_size(struct drm_i915_private *dev_priv);
 
 #endif
diff --git a/drivers/gpu/drm/i915/intel_guc_reg.h b/drivers/gpu/drm/i915/intel_guc_reg.h
index 19a9247..1f52fb8 100644
--- a/drivers/gpu/drm/i915/intel_guc_reg.h
+++ b/drivers/gpu/drm/i915/intel_guc_reg.h
@@ -68,7 +68,6 @@ 
 #define DMA_GUC_WOPCM_OFFSET		_MMIO(0xc340)
 #define   HUC_LOADING_AGENT_VCR		  (0<<1)
 #define   HUC_LOADING_AGENT_GUC		  (1<<1)
-#define   GUC_WOPCM_OFFSET_VALUE	  0x80000	/* 512KB */
 #define GUC_MAX_IDLE_COUNT		_MMIO(0xC3E4)
 
 #define HUC_STATUS2             _MMIO(0xD3B0)
@@ -76,9 +75,6 @@ 
 
 /* Defines WOPCM space available to GuC firmware */
 #define GUC_WOPCM_SIZE			_MMIO(0xc050)
-/* GuC addresses below GUC_WOPCM_TOP don't map through the GTT */
-#define   GUC_WOPCM_TOP			  (0x80 << 12)	/* 512KB */
-#define   BXT_GUC_WOPCM_RC6_RESERVED	  (0x10 << 12)	/* 64KB  */
 
 /* GuC addresses above GUC_GGTT_TOP also don't map through the GTT */
 #define GUC_GGTT_TOP			0xFEE00000
diff --git a/drivers/gpu/drm/i915/intel_guc_wopcm.c b/drivers/gpu/drm/i915/intel_guc_wopcm.c
new file mode 100644
index 0000000..c3d54f8
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_guc_wopcm.c
@@ -0,0 +1,48 @@ 
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2017-2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#include "intel_guc_wopcm.h"
+#include "i915_drv.h"
+
+/**
+ * intel_guc_wopcm_size() - Get the size of GuC WOPCM.
+ * @guc: intel guc.
+ *
+ * Get the platform specific GuC WOPCM size.
+ *
+ * Return: size of the GuC WOPCM.
+ */
+u32 intel_guc_wopcm_size(struct intel_guc *guc)
+{
+	struct drm_i915_private *i915 = guc_to_i915(guc);
+	u32 size = GUC_WOPCM_TOP;
+
+	/* On BXT, the top of WOPCM is reserved for RC6 context */
+	if (IS_GEN9_LP(i915))
+		size -= BXT_GUC_WOPCM_RC6_RESERVED;
+
+	return size;
+}
diff --git a/drivers/gpu/drm/i915/intel_guc_wopcm.h b/drivers/gpu/drm/i915/intel_guc_wopcm.h
new file mode 100644
index 0000000..7323604
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_guc_wopcm.h
@@ -0,0 +1,45 @@ 
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2017-2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _INTEL_GUC_WOPCM_H_
+#define _INTEL_GUC_WOPCM_H_
+
+#include <linux/types.h>
+
+struct intel_guc;
+
+/* 512KB static offset from WOPCM base. */
+#define GUC_WOPCM_OFFSET_VALUE		(512 << 10)
+/*
+ * 512KB static GuC WOPCM size from GUC_WOPCM_OFFSET_VALUE to the end of GuC
+ * WOPCM. GuC addresses below GUC_WOPCM_TOP don't map through the GTT.
+ */
+#define GUC_WOPCM_TOP			(512 << 10)
+#define BXT_GUC_WOPCM_RC6_RESERVED	(64 << 10)
+
+u32 intel_guc_wopcm_size(struct intel_guc *guc);
+
+#endif
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 9f1bac6..1b2831b 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -340,7 +340,7 @@  int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 	gen9_reset_guc_interrupts(dev_priv);
 
 	/* init WOPCM */
-	I915_WRITE(GUC_WOPCM_SIZE, intel_guc_wopcm_size(dev_priv));
+	I915_WRITE(GUC_WOPCM_SIZE, intel_guc_wopcm_size(guc));
 	I915_WRITE(DMA_GUC_WOPCM_OFFSET,
 		   GUC_WOPCM_OFFSET_VALUE | HUC_LOADING_AGENT_GUC);
 
diff --git a/drivers/gpu/drm/i915/intel_uc_fw.c b/drivers/gpu/drm/i915/intel_uc_fw.c
index 784eff9..24945cf 100644
--- a/drivers/gpu/drm/i915/intel_uc_fw.c
+++ b/drivers/gpu/drm/i915/intel_uc_fw.c
@@ -97,7 +97,7 @@  void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
 
 	/* Header and uCode will be loaded to WOPCM */
 	size = uc_fw->header_size + uc_fw->ucode_size;
-	if (size > intel_guc_wopcm_size(dev_priv)) {
+	if (size > intel_guc_wopcm_size(&dev_priv->guc)) {
 		DRM_WARN("%s: Firmware is too large to fit in WOPCM\n",
 			 intel_uc_fw_type_repr(uc_fw->type));
 		err = -E2BIG;