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Commit a0d24814 authored by Nadine Toledano's avatar Nadine Toledano
Browse files

msm: ipa3: support MHI over GSI 



Add support for IPA MHI driver over GSI.
This change uses GSI (Generic Software Interface) block
in IPA for MHI instead of using IPA uC.

Change-Id: Ibbc11dd5390db0c1dc2dc3f897fdccc1d5cf5cc9
Acked-by: default avatarAdy Abraham <adya@qti.qualcomm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
Signed-off-by: default avatarNadine Toledano <nadinet@codeaurora.org>
parent 50e0173f

drivers/platform/msm/ipa/ipa_v3/ipa_mhi.c

+1134 −289

File changed.

Preview size limit exceeded, changes collapsed.

include/linux/ipa.h

+9 −0
Original line number Diff line number Diff line
@@ -1067,16 +1067,21 @@ struct ipa_mhi_msi_info { 
 * @mmio_addr: MHI MMIO physical address

 * @first_ch_idx: First channel ID for hardware accelerated channels.

 * @first_er_idx: First event ring ID for hardware accelerated channels.

 * @assert_bit40: should assert bit 40 in order to access hots space.

 *	if PCIe iATU is configured then not need to assert bit40

 * @notify: client callback

 * @priv: client private data to be provided in client callback

 * @test_mode: flag to indicate if IPA MHI is in unit test mode

 */

struct ipa_mhi_init_params {

	struct ipa_mhi_msi_info msi;

	u32 mmio_addr;

	u32 first_ch_idx;

	u32 first_er_idx;

	bool assert_bit40;

	mhi_client_cb notify;

	void *priv;

	bool test_mode;

};



/**
@@ -1084,10 +1089,14 @@ struct ipa_mhi_init_params { 
 *

 * @host_ctrl_addr: Base address of MHI control data structures

 * @host_data_addr: Base address of MHI data buffers

 * @channel_context_addr: channel context array address in host address space

 * @event_context_addr: event context array address in host address space

 */

struct ipa_mhi_start_params {

	u32 host_ctrl_addr;

	u32 host_data_addr;

	u64 channel_context_array_addr;

	u64 event_context_array_addr;

};



/**

include/uapi/linux/msm_ipa.h

+5 −0
Original line number Diff line number Diff line
@@ -250,6 +250,11 @@ enum ipa_client_type { 
#define IPA_CLIENT_IS_MHI_CONS(client) \

	((client) == IPA_CLIENT_MHI_CONS)



#define IPA_CLIENT_IS_MHI(client) \

	((client) == IPA_CLIENT_MHI_CONS || \

	(client) == IPA_CLIENT_MHI_PROD)









/**