Commit 9ea48efd authored by Loic Poulain's avatar Loic Poulain Committed by Manivannan Sadhasivam
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bus: mhi: pci_generic: Parametrable element count for events 



Not all hardwares need to use the same number of event ring elements.
This change makes this parametrable.

Signed-off-by: default avatarLoic Poulain <loic.poulain@linaro.org>
Reviewed-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1614971808-22156-1-git-send-email-loic.poulain@linaro.org


Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
parent a38fd874

drivers/bus/mhi/pci_generic.c

+10 −10
Original line number Diff line number Diff line
@@ -71,9 +71,9 @@ struct mhi_pci_dev_info { 
		.doorbell_mode_switch = false,		\

	}



#define MHI_EVENT_CONFIG_CTRL(ev_ring)		\

#define MHI_EVENT_CONFIG_CTRL(ev_ring, el_count) \

	{					\

		.num_elements = 64,		\

		.num_elements = el_count,	\

		.irq_moderation_ms = 0,		\

		.irq = (ev_ring) + 1,		\

		.priority = 1,			\
@@ -114,9 +114,9 @@ struct mhi_pci_dev_info { 
		.doorbell_mode_switch = true,		\

	}



#define MHI_EVENT_CONFIG_DATA(ev_ring)		\

#define MHI_EVENT_CONFIG_DATA(ev_ring, el_count) \

	{					\

		.num_elements = 128,		\

		.num_elements = el_count,	\

		.irq_moderation_ms = 5,		\

		.irq = (ev_ring) + 1,		\

		.priority = 1,			\
@@ -127,9 +127,9 @@ struct mhi_pci_dev_info { 
		.offload_channel = false,	\

	}



#define MHI_EVENT_CONFIG_HW_DATA(ev_ring, ch_num) \

#define MHI_EVENT_CONFIG_HW_DATA(ev_ring, el_count, ch_num) \

	{					\

		.num_elements = 2048,		\

		.num_elements = el_count,	\

		.irq_moderation_ms = 1,		\

		.irq = (ev_ring) + 1,		\

		.priority = 1,			\
@@ -156,12 +156,12 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = { 


static struct mhi_event_config modem_qcom_v1_mhi_events[] = {

	/* first ring is control+data ring */

	MHI_EVENT_CONFIG_CTRL(0),

	MHI_EVENT_CONFIG_CTRL(0, 64),

	/* DIAG dedicated event ring */

	MHI_EVENT_CONFIG_DATA(1),

	MHI_EVENT_CONFIG_DATA(1, 128),

	/* Hardware channels request dedicated hardware event rings */

	MHI_EVENT_CONFIG_HW_DATA(2, 100),

	MHI_EVENT_CONFIG_HW_DATA(3, 101)

	MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100),

	MHI_EVENT_CONFIG_HW_DATA(3, 2048, 101)

};



static struct mhi_controller_config modem_qcom_v1_mhiv_config = {