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Subject: Re: [Intel-gfx] [PATCH 1/2] drm/i915/gem: initial conversion to new
 logging macros using coccinelle
To:     Wambui Karuga <wambui.karugax@gmail.com>,
        jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com,
        rodrigo.vivi@intel.com, airlied@linux.ie, daniel@ffwll.ch,
        intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org
References: <20200122125750.9737-1-wambui.karugax@gmail.com>
 <20200122125750.9737-2-wambui.karugax@gmail.com>
From:   Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Organization: Intel Corporation UK Plc
Message-ID: <b97de5b8-b87f-3b2d-e8bc-942fc21b266e@linux.intel.com>
Date:   Tue, 28 Jan 2020 13:25:07 +0000
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On 22/01/2020 12:57, Wambui Karuga wrote:
> First pass of conversion to the new struct drm_based device logging
> macros in the drm/i915/gem directory. This conversion was achieved using
> the following coccinelle script that transforms based on the existence
> of a straightforward struct drm_i915_private device:
> 
> @rule1@
> identifier fn, T;
> @@
> 
> fn(struct drm_i915_private *T,...) {
> <+...
> (
> -DRM_INFO(
> +drm_info(&T->drm,
> ...)
> |
> -DRM_ERROR(
> +drm_err(&T->drm,
> ...)
> |
> -DRM_WARN(
> +drm_warn(&T->drm,
> ...)
> |
> -DRM_DEBUG(
> +drm_dbg(&T->drm,
> ...)
> |
> -DRM_DEBUG_DRIVER(
> +drm_dbg(&T->drm,
> ...)
> |
> -DRM_DEBUG_KMS(
> +drm_dbg_kms(&T->drm,
> ...)
> |
> -DRM_DEBUG_ATOMIC(
> +drm_dbg_atomic(&T->drm,
> ...)
> )
> ...+>
> }
> 
> @rule2@
> identifier fn, T;
> @@
> 
> fn(...) {
> ...
> struct drm_i915_private *T = ...;
> <+...
> (
> -DRM_INFO(
> +drm_info(&T->drm,
> ...)
> |
> -DRM_ERROR(
> +drm_err(&T->drm,
> ...)
> |
> -DRM_WARN(
> +drm_warn(&T->drm,
> ...)
> |
> -DRM_DEBUG(
> +drm_dbg(&T->drm,

This changes DRM_UT_CORE to DRM_UT_DRIVER so our typical drm.debug=0xe 
becomes much more spammy.

Regards,

Tvrtko

> ...)
> |
> -DRM_DEBUG_KMS(
> +drm_dbg_kms(&T->drm,
> ...)
> |
> -DRM_DEBUG_DRIVER(
> +drm_dbg(&T->drm,
> ...)
> |
> -DRM_DEBUG_ATOMIC(
> +drm_dbg_atomic(&T->drm,
> ...)
> )
> ...+>
> }
> 
> Checkpatch warnings were addressed manually.
> 
> Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
> ---
>   drivers/gpu/drm/i915/gem/i915_gem_context.c   | 27 +++++----
>   .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 37 +++++++-----
>   drivers/gpu/drm/i915/gem/i915_gem_stolen.c    | 56 +++++++++++--------
>   3 files changed, 70 insertions(+), 50 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> index a2e57e62af30..5432da2abda0 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> @@ -708,8 +708,8 @@ i915_gem_create_context(struct drm_i915_private *i915, unsigned int flags)
>   
>   		ppgtt = i915_ppgtt_create(&i915->gt);
>   		if (IS_ERR(ppgtt)) {
> -			DRM_DEBUG_DRIVER("PPGTT setup failed (%ld)\n",
> -					 PTR_ERR(ppgtt));
> +			drm_dbg(&i915->drm, "PPGTT setup failed (%ld)\n",
> +				PTR_ERR(ppgtt));
>   			context_close(ctx);
>   			return ERR_CAST(ppgtt);
>   		}
> @@ -751,9 +751,9 @@ static void init_contexts(struct i915_gem_contexts *gc)
>   void i915_gem_init__contexts(struct drm_i915_private *i915)
>   {
>   	init_contexts(&i915->gem.contexts);
> -	DRM_DEBUG_DRIVER("%s context support initialized\n",
> -			 DRIVER_CAPS(i915)->has_logical_contexts ?
> -			 "logical" : "fake");
> +	drm_dbg(&i915->drm, "%s context support initialized\n",
> +		DRIVER_CAPS(i915)->has_logical_contexts ?
> +		"logical" : "fake");
>   }
>   
>   void i915_gem_driver_release__contexts(struct drm_i915_private *i915)
> @@ -1624,6 +1624,7 @@ static int
>   set_engines(struct i915_gem_context *ctx,
>   	    const struct drm_i915_gem_context_param *args)
>   {
> +	struct drm_i915_private *i915 = ctx->i915;
>   	struct i915_context_param_engines __user *user =
>   		u64_to_user_ptr(args->value);
>   	struct set_engines set = { .ctx = ctx };
> @@ -1645,8 +1646,8 @@ set_engines(struct i915_gem_context *ctx,
>   	BUILD_BUG_ON(!IS_ALIGNED(sizeof(*user), sizeof(*user->engines)));
>   	if (args->size < sizeof(*user) ||
>   	    !IS_ALIGNED(args->size, sizeof(*user->engines))) {
> -		DRM_DEBUG("Invalid size for engine array: %d\n",
> -			  args->size);
> +		drm_dbg(&i915->drm, "Invalid size for engine array: %d\n",
> +			args->size);
>   		return -EINVAL;
>   	}
>   
> @@ -1682,8 +1683,9 @@ set_engines(struct i915_gem_context *ctx,
>   						  ci.engine_class,
>   						  ci.engine_instance);
>   		if (!engine) {
> -			DRM_DEBUG("Invalid engine[%d]: { class:%d, instance:%d }\n",
> -				  n, ci.engine_class, ci.engine_instance);
> +			drm_dbg(&i915->drm,
> +				"Invalid engine[%d]: { class:%d, instance:%d }\n",
> +				n, ci.engine_class, ci.engine_instance);
>   			__free_engines(set.engines, n);
>   			return -ENOENT;
>   		}
> @@ -2197,8 +2199,9 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
>   
>   	ext_data.fpriv = file->driver_priv;
>   	if (client_is_banned(ext_data.fpriv)) {
> -		DRM_DEBUG("client %s[%d] banned from creating ctx\n",
> -			  current->comm, task_pid_nr(current));
> +		drm_dbg(&i915->drm,
> +			"client %s[%d] banned from creating ctx\n",
> +			current->comm, task_pid_nr(current));
>   		return -EIO;
>   	}
>   
> @@ -2220,7 +2223,7 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
>   		goto err_ctx;
>   
>   	args->ctx_id = id;
> -	DRM_DEBUG("HW context %d created\n", args->ctx_id);
> +	drm_dbg(&i915->drm, "HW context %d created\n", args->ctx_id);
>   
>   	return 0;
>   
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> index 60c984e10c4a..61c0a837f163 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> @@ -420,6 +420,7 @@ eb_validate_vma(struct i915_execbuffer *eb,
>   		struct drm_i915_gem_exec_object2 *entry,
>   		struct i915_vma *vma)
>   {
> +	struct drm_i915_private *i915 = eb->i915;
>   	if (unlikely(entry->flags & eb->invalid_flags))
>   		return -EINVAL;
>   
> @@ -443,8 +444,9 @@ eb_validate_vma(struct i915_execbuffer *eb,
>   	}
>   
>   	if (unlikely(vma->exec_flags)) {
> -		DRM_DEBUG("Object [handle %d, index %d] appears more than once in object list\n",
> -			  entry->handle, (int)(entry - eb->exec));
> +		drm_dbg(&i915->drm,
> +			"Object [handle %d, index %d] appears more than once in object list\n",
> +			entry->handle, (int)(entry - eb->exec));
>   		return -EINVAL;
>   	}
>   
> @@ -1330,6 +1332,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
>   		  struct i915_vma *vma,
>   		  const struct drm_i915_gem_relocation_entry *reloc)
>   {
> +	struct drm_i915_private *i915 = eb->i915;
>   	struct i915_vma *target;
>   	int err;
>   
> @@ -1340,7 +1343,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
>   
>   	/* Validate that the target is in a valid r/w GPU domain */
>   	if (unlikely(reloc->write_domain & (reloc->write_domain - 1))) {
> -		DRM_DEBUG("reloc with multiple write domains: "
> +		drm_dbg(&i915->drm, "reloc with multiple write domains: "
>   			  "target %d offset %d "
>   			  "read %08x write %08x",
>   			  reloc->target_handle,
> @@ -1351,7 +1354,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
>   	}
>   	if (unlikely((reloc->write_domain | reloc->read_domains)
>   		     & ~I915_GEM_GPU_DOMAINS)) {
> -		DRM_DEBUG("reloc with read/write non-GPU domains: "
> +		drm_dbg(&i915->drm, "reloc with read/write non-GPU domains: "
>   			  "target %d offset %d "
>   			  "read %08x write %08x",
>   			  reloc->target_handle,
> @@ -1391,7 +1394,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
>   	/* Check that the relocation address is valid... */
>   	if (unlikely(reloc->offset >
>   		     vma->size - (eb->reloc_cache.use_64bit_reloc ? 8 : 4))) {
> -		DRM_DEBUG("Relocation beyond object bounds: "
> +		drm_dbg(&i915->drm, "Relocation beyond object bounds: "
>   			  "target %d offset %d size %d.\n",
>   			  reloc->target_handle,
>   			  (int)reloc->offset,
> @@ -1399,7 +1402,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
>   		return -EINVAL;
>   	}
>   	if (unlikely(reloc->offset & 3)) {
> -		DRM_DEBUG("Relocation not 4-byte aligned: "
> +		drm_dbg(&i915->drm, "Relocation not 4-byte aligned: "
>   			  "target %d offset %d.\n",
>   			  reloc->target_handle,
>   			  (int)reloc->offset);
> @@ -2075,6 +2078,7 @@ static int eb_parse_pipeline(struct i915_execbuffer *eb,
>   
>   static int eb_parse(struct i915_execbuffer *eb)
>   {
> +	struct drm_i915_private *i915 = eb->i915;
>   	struct intel_engine_pool_node *pool;
>   	struct i915_vma *shadow, *trampoline;
>   	unsigned int len;
> @@ -2090,7 +2094,8 @@ static int eb_parse(struct i915_execbuffer *eb)
>   		 * post-scan tampering
>   		 */
>   		if (!eb->context->vm->has_read_only) {
> -			DRM_DEBUG("Cannot prevent post-scan tampering without RO capable vm\n");
> +			drm_dbg(&i915->drm,
> +				"Cannot prevent post-scan tampering without RO capable vm\n");
>   			return -EINVAL;
>   		}
>   	} else {
> @@ -2371,8 +2376,9 @@ eb_select_legacy_ring(struct i915_execbuffer *eb,
>   
>   	if (user_ring_id != I915_EXEC_BSD &&
>   	    (args->flags & I915_EXEC_BSD_MASK)) {
> -		DRM_DEBUG("execbuf with non bsd ring but with invalid "
> -			  "bsd dispatch flags: %d\n", (int)(args->flags));
> +		drm_dbg(&i915->drm,
> +			"execbuf with non bsd ring but with invalid "
> +			"bsd dispatch flags: %d\n", (int)(args->flags));
>   		return -1;
>   	}
>   
> @@ -2386,8 +2392,9 @@ eb_select_legacy_ring(struct i915_execbuffer *eb,
>   			bsd_idx >>= I915_EXEC_BSD_SHIFT;
>   			bsd_idx--;
>   		} else {
> -			DRM_DEBUG("execbuf with unknown bsd ring: %u\n",
> -				  bsd_idx);
> +			drm_dbg(&i915->drm,
> +				"execbuf with unknown bsd ring: %u\n",
> +				bsd_idx);
>   			return -1;
>   		}
>   
> @@ -2395,7 +2402,8 @@ eb_select_legacy_ring(struct i915_execbuffer *eb,
>   	}
>   
>   	if (user_ring_id >= ARRAY_SIZE(user_ring_map)) {
> -		DRM_DEBUG("execbuf with unknown ring: %u\n", user_ring_id);
> +		drm_dbg(&i915->drm, "execbuf with unknown ring: %u\n",
> +			user_ring_id);
>   		return -1;
>   	}
>   
> @@ -2669,13 +2677,14 @@ i915_gem_do_execbuffer(struct drm_device *dev,
>   	}
>   
>   	if (unlikely(*eb.batch->exec_flags & EXEC_OBJECT_WRITE)) {
> -		DRM_DEBUG("Attempting to use self-modifying batch buffer\n");
> +		drm_dbg(&i915->drm,
> +			"Attempting to use self-modifying batch buffer\n");
>   		err = -EINVAL;
>   		goto err_vma;
>   	}
>   	if (eb.batch_start_offset > eb.batch->size ||
>   	    eb.batch_len > eb.batch->size - eb.batch_start_offset) {
> -		DRM_DEBUG("Attempting to use out-of-bounds batch\n");
> +		drm_dbg(&i915->drm, "Attempting to use out-of-bounds batch\n");
>   		err = -EINVAL;
>   		goto err_vma;
>   	}
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
> index 451f3078d60d..52c92f4fcb56 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
> @@ -110,8 +110,11 @@ static int i915_adjust_stolen(struct drm_i915_private *i915,
>   
>   		if (stolen[0].start != stolen[1].start ||
>   		    stolen[0].end != stolen[1].end) {
> -			DRM_DEBUG_DRIVER("GTT within stolen memory at %pR\n", &ggtt_res);
> -			DRM_DEBUG_DRIVER("Stolen memory adjusted to %pR\n", dsm);
> +			drm_dbg(&i915->drm,
> +				"GTT within stolen memory at %pR\n",
> +				&ggtt_res);
> +			drm_dbg(&i915->drm, "Stolen memory adjusted to %pR\n",
> +				dsm);
>   		}
>   	}
>   
> @@ -142,8 +145,9 @@ static int i915_adjust_stolen(struct drm_i915_private *i915,
>   		 * range. Apparently this works.
>   		 */
>   		if (!r && !IS_GEN(i915, 3)) {
> -			DRM_ERROR("conflict detected with stolen region: %pR\n",
> -				  dsm);
> +			drm_err(&i915->drm,
> +				"conflict detected with stolen region: %pR\n",
> +				dsm);
>   
>   			return -EBUSY;
>   		}
> @@ -171,8 +175,8 @@ static void g4x_get_stolen_reserved(struct drm_i915_private *i915,
>   					ELK_STOLEN_RESERVED);
>   	resource_size_t stolen_top = i915->dsm.end + 1;
>   
> -	DRM_DEBUG_DRIVER("%s_STOLEN_RESERVED = %08x\n",
> -			 IS_GM45(i915) ? "CTG" : "ELK", reg_val);
> +	drm_dbg(&i915->drm, "%s_STOLEN_RESERVED = %08x\n",
> +		IS_GM45(i915) ? "CTG" : "ELK", reg_val);
>   
>   	if ((reg_val & G4X_STOLEN_RESERVED_ENABLE) == 0)
>   		return;
> @@ -200,7 +204,7 @@ static void gen6_get_stolen_reserved(struct drm_i915_private *i915,
>   {
>   	u32 reg_val = intel_uncore_read(uncore, GEN6_STOLEN_RESERVED);
>   
> -	DRM_DEBUG_DRIVER("GEN6_STOLEN_RESERVED = %08x\n", reg_val);
> +	drm_dbg(&i915->drm, "GEN6_STOLEN_RESERVED = %08x\n", reg_val);
>   
>   	if (!(reg_val & GEN6_STOLEN_RESERVED_ENABLE))
>   		return;
> @@ -234,7 +238,7 @@ static void vlv_get_stolen_reserved(struct drm_i915_private *i915,
>   	u32 reg_val = intel_uncore_read(uncore, GEN6_STOLEN_RESERVED);
>   	resource_size_t stolen_top = i915->dsm.end + 1;
>   
> -	DRM_DEBUG_DRIVER("GEN6_STOLEN_RESERVED = %08x\n", reg_val);
> +	drm_dbg(&i915->drm, "GEN6_STOLEN_RESERVED = %08x\n", reg_val);
>   
>   	if (!(reg_val & GEN6_STOLEN_RESERVED_ENABLE))
>   		return;
> @@ -262,7 +266,7 @@ static void gen7_get_stolen_reserved(struct drm_i915_private *i915,
>   {
>   	u32 reg_val = intel_uncore_read(uncore, GEN6_STOLEN_RESERVED);
>   
> -	DRM_DEBUG_DRIVER("GEN6_STOLEN_RESERVED = %08x\n", reg_val);
> +	drm_dbg(&i915->drm, "GEN6_STOLEN_RESERVED = %08x\n", reg_val);
>   
>   	if (!(reg_val & GEN6_STOLEN_RESERVED_ENABLE))
>   		return;
> @@ -289,7 +293,7 @@ static void chv_get_stolen_reserved(struct drm_i915_private *i915,
>   {
>   	u32 reg_val = intel_uncore_read(uncore, GEN6_STOLEN_RESERVED);
>   
> -	DRM_DEBUG_DRIVER("GEN6_STOLEN_RESERVED = %08x\n", reg_val);
> +	drm_dbg(&i915->drm, "GEN6_STOLEN_RESERVED = %08x\n", reg_val);
>   
>   	if (!(reg_val & GEN6_STOLEN_RESERVED_ENABLE))
>   		return;
> @@ -323,7 +327,7 @@ static void bdw_get_stolen_reserved(struct drm_i915_private *i915,
>   	u32 reg_val = intel_uncore_read(uncore, GEN6_STOLEN_RESERVED);
>   	resource_size_t stolen_top = i915->dsm.end + 1;
>   
> -	DRM_DEBUG_DRIVER("GEN6_STOLEN_RESERVED = %08x\n", reg_val);
> +	drm_dbg(&i915->drm, "GEN6_STOLEN_RESERVED = %08x\n", reg_val);
>   
>   	if (!(reg_val & GEN6_STOLEN_RESERVED_ENABLE))
>   		return;
> @@ -342,7 +346,7 @@ static void icl_get_stolen_reserved(struct drm_i915_private *i915,
>   {
>   	u64 reg_val = intel_uncore_read64(uncore, GEN6_STOLEN_RESERVED);
>   
> -	DRM_DEBUG_DRIVER("GEN6_STOLEN_RESERVED = 0x%016llx\n", reg_val);
> +	drm_dbg(&i915->drm, "GEN6_STOLEN_RESERVED = 0x%016llx\n", reg_val);
>   
>   	*base = reg_val & GEN11_STOLEN_RESERVED_ADDR_MASK;
>   
> @@ -453,8 +457,9 @@ static int i915_gem_init_stolen(struct drm_i915_private *i915)
>   	 * it likely means we failed to read the registers correctly.
>   	 */
>   	if (!reserved_base) {
> -		DRM_ERROR("inconsistent reservation %pa + %pa; ignoring\n",
> -			  &reserved_base, &reserved_size);
> +		drm_err(&i915->drm,
> +			"inconsistent reservation %pa + %pa; ignoring\n",
> +			&reserved_base, &reserved_size);
>   		reserved_base = stolen_top;
>   		reserved_size = 0;
>   	}
> @@ -463,8 +468,9 @@ static int i915_gem_init_stolen(struct drm_i915_private *i915)
>   		(struct resource)DEFINE_RES_MEM(reserved_base, reserved_size);
>   
>   	if (!resource_contains(&i915->dsm, &i915->dsm_reserved)) {
> -		DRM_ERROR("Stolen reserved area %pR outside stolen memory %pR\n",
> -			  &i915->dsm_reserved, &i915->dsm);
> +		drm_err(&i915->drm,
> +			"Stolen reserved area %pR outside stolen memory %pR\n",
> +			&i915->dsm_reserved, &i915->dsm);
>   		return 0;
>   	}
>   
> @@ -472,9 +478,10 @@ static int i915_gem_init_stolen(struct drm_i915_private *i915)
>   	 * memory, so just consider the start. */
>   	reserved_total = stolen_top - reserved_base;
>   
> -	DRM_DEBUG_DRIVER("Memory reserved for graphics device: %lluK, usable: %lluK\n",
> -			 (u64)resource_size(&i915->dsm) >> 10,
> -			 ((u64)resource_size(&i915->dsm) - reserved_total) >> 10);
> +	drm_dbg(&i915->drm,
> +		"Memory reserved for graphics device: %lluK, usable: %lluK\n",
> +		(u64)resource_size(&i915->dsm) >> 10,
> +		((u64)resource_size(&i915->dsm) - reserved_total) >> 10);
>   
>   	i915->stolen_usable_size =
>   		resource_size(&i915->dsm) - reserved_total;
> @@ -690,8 +697,9 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *i915,
>   	if (!drm_mm_initialized(&i915->mm.stolen))
>   		return ERR_PTR(-ENODEV);
>   
> -	DRM_DEBUG_DRIVER("creating preallocated stolen object: stolen_offset=%pa, gtt_offset=%pa, size=%pa\n",
> -			 &stolen_offset, &gtt_offset, &size);
> +	drm_dbg(&i915->drm,
> +		"creating preallocated stolen object: stolen_offset=%pa, gtt_offset=%pa, size=%pa\n",
> +		&stolen_offset, &gtt_offset, &size);
>   
>   	/* KISS and expect everything to be page-aligned */
>   	if (WARN_ON(size == 0) ||
> @@ -709,14 +717,14 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *i915,
>   	ret = drm_mm_reserve_node(&i915->mm.stolen, stolen);
>   	mutex_unlock(&i915->mm.stolen_lock);
>   	if (ret) {
> -		DRM_DEBUG_DRIVER("failed to allocate stolen space\n");
> +		drm_dbg(&i915->drm, "failed to allocate stolen space\n");
>   		kfree(stolen);
>   		return ERR_PTR(ret);
>   	}
>   
>   	obj = __i915_gem_object_create_stolen(mem, stolen);
>   	if (IS_ERR(obj)) {
> -		DRM_DEBUG_DRIVER("failed to allocate stolen object\n");
> +		drm_dbg(&i915->drm, "failed to allocate stolen object\n");
>   		i915_gem_stolen_remove_node(i915, stolen);
>   		kfree(stolen);
>   		return obj;
> @@ -746,7 +754,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *i915,
>   				   size, gtt_offset, obj->cache_level,
>   				   0);
>   	if (ret) {
> -		DRM_DEBUG_DRIVER("failed to allocate stolen GTT space\n");
> +		drm_dbg(&i915->drm, "failed to allocate stolen GTT space\n");
>   		mutex_unlock(&ggtt->vm.mutex);
>   		goto err_pages;
>   	}
>