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Commit d871bfd0 authored by Michal Wajdeczko's avatar Michal Wajdeczko Committed by Chris Wilson
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drm/i915/guc: Unify parameters of public CT functions 



There is no need to mix parameter types in public CT functions
as we can always accept intel_guc_ct.

v2: fix 'Return' doc, s/dev_priv/i915 (Sagar)

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarSagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180320162020.38672-1-michal.wajdeczko@intel.com
parent e9c7e651

drivers/gpu/drm/i915/intel_guc_ct.c

+27 −14
Original line number Diff line number Diff line
@@ -28,12 +28,21 @@ enum { CTB_SEND = 0, CTB_RECV = 1 }; 


enum { CTB_OWNER_HOST = 0 };



/**

 * intel_guc_ct_init_early - Initialize CT state without requiring device access

 * @ct: pointer to CT struct

 */

void intel_guc_ct_init_early(struct intel_guc_ct *ct)

{

	/* we're using static channel owners */

	ct->host_channel.owner = CTB_OWNER_HOST;

}



static inline struct intel_guc *ct_to_guc(struct intel_guc_ct *ct)

{

	return container_of(ct, struct intel_guc, ct);

}



static inline const char *guc_ct_buffer_type_to_str(u32 type)

{

	switch (type) {
@@ -416,19 +425,21 @@ static int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len) 
}



/**

 * Enable buffer based command transport

 * intel_guc_ct_enable - Enable buffer based command transport.

 * @ct: pointer to CT struct

 *

 * Shall only be called for platforms with HAS_GUC_CT.

 * @guc:	the guc

 * return:	0 on success

 *		non-zero on failure

 *

 * Return: 0 on success, a negative errno code on failure.

 */

int intel_guc_enable_ct(struct intel_guc *guc)

int intel_guc_ct_enable(struct intel_guc_ct *ct)

{

	struct drm_i915_private *dev_priv = guc_to_i915(guc);

	struct intel_guc_ct_channel *ctch = &guc->ct.host_channel;

	struct intel_guc *guc = ct_to_guc(ct);

	struct drm_i915_private *i915 = guc_to_i915(guc);

	struct intel_guc_ct_channel *ctch = &ct->host_channel;

	int err;



	GEM_BUG_ON(!HAS_GUC_CT(dev_priv));

	GEM_BUG_ON(!HAS_GUC_CT(i915));



	err = ctch_open(guc, ctch);

	if (unlikely(err))
@@ -441,16 +452,18 @@ int intel_guc_enable_ct(struct intel_guc *guc) 
}



/**

 * Disable buffer based command transport.

 * intel_guc_ct_disable - Disable buffer based command transport.

 * @ct: pointer to CT struct

 *

 * Shall only be called for platforms with HAS_GUC_CT.

 * @guc: the guc

 */

void intel_guc_disable_ct(struct intel_guc *guc)

void intel_guc_ct_disable(struct intel_guc_ct *ct)

{

	struct drm_i915_private *dev_priv = guc_to_i915(guc);

	struct intel_guc_ct_channel *ctch = &guc->ct.host_channel;

	struct intel_guc *guc = ct_to_guc(ct);

	struct drm_i915_private *i915 = guc_to_i915(guc);

	struct intel_guc_ct_channel *ctch = &ct->host_channel;



	GEM_BUG_ON(!HAS_GUC_CT(dev_priv));

	GEM_BUG_ON(!HAS_GUC_CT(i915));



	if (!ctch_is_open(ctch))

		return;

drivers/gpu/drm/i915/intel_guc_ct.h

+2 −4
Original line number Diff line number Diff line
@@ -78,9 +78,7 @@ struct intel_guc_ct { 
};



void intel_guc_ct_init_early(struct intel_guc_ct *ct);



/* XXX: move to intel_uc.h ? don't fit there either */

int intel_guc_enable_ct(struct intel_guc *guc);

void intel_guc_disable_ct(struct intel_guc *guc);

int intel_guc_ct_enable(struct intel_guc_ct *ct);

void intel_guc_ct_disable(struct intel_guc_ct *ct);



#endif /* _INTEL_GUC_CT_H_ */

drivers/gpu/drm/i915/intel_uc.c

+2 −2
Original line number Diff line number Diff line
@@ -231,7 +231,7 @@ static int guc_enable_communication(struct intel_guc *guc) 
	gen9_enable_guc_interrupts(dev_priv);



	if (HAS_GUC_CT(dev_priv))

		return intel_guc_enable_ct(guc);

		return intel_guc_ct_enable(&guc->ct);



	guc->send = intel_guc_send_mmio;

	return 0;
@@ -242,7 +242,7 @@ static void guc_disable_communication(struct intel_guc *guc) 
	struct drm_i915_private *dev_priv = guc_to_i915(guc);



	if (HAS_GUC_CT(dev_priv))

		intel_guc_disable_ct(guc);

		intel_guc_ct_disable(&guc->ct);



	gen9_disable_guc_interrupts(dev_priv);