Commit 030946fd authored by Jakub Kicinski's avatar Jakub Kicinski
Browse files

Merge branch 'net-ipa-ipa-register-cleanup' 

Alex Elder says:

====================
net: ipa: IPA register cleanup

This series consists of cleanup patches, almost entirely related to
the definitions for IPA registers.  Some comments are updated or
added to provide better information about defined IPA registers.
Other cleanups ensure symbol names and their assigned values are
defined consistently.  Some essentially duplicate definitions get
consolidated for simplicity.  In a few cases some minor bugs
(missing definitions) are fixed.  With these changes, all IPA
register offsets and associated field masks should be correct for
IPA versions 3.5.1, 4.0, 4.1, and 4.2.
====================

Link: https://lore.kernel.org/r/20201116233805.13775-1-elder@linaro.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parents 2b8473d2 716a115b

drivers/net/ipa/gsi.h

+10 −10
Original line number Diff line number Diff line
@@ -33,10 +33,10 @@ struct ipa_gsi_endpoint_data; 


/* Execution environment IDs */

enum gsi_ee_id {

	GSI_EE_AP	= 0,

	GSI_EE_MODEM	= 1,

	GSI_EE_UC	= 2,

	GSI_EE_TZ	= 3,

	GSI_EE_AP				= 0x0,

	GSI_EE_MODEM				= 0x1,

	GSI_EE_UC				= 0x2,

	GSI_EE_TZ				= 0x3,

};



struct gsi_ring {

drivers/net/ipa/gsi_reg.h

+18 −7
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ 
#define ERINDEX_FMASK			GENMASK(18, 14)

#define CHSTATE_FMASK			GENMASK(23, 20)

#define ELEMENT_SIZE_FMASK		GENMASK(31, 24)



/** enum gsi_channel_type - CHTYPE_PROTOCOL field values in CH_C_CNTXT_0 */

enum gsi_channel_type {

	GSI_CHANNEL_TYPE_MHI			= 0x0,
@@ -223,6 +224,7 @@ enum gsi_channel_type { 
			(0x0001f008 + 0x4000 * (ee))

#define CH_CHID_FMASK			GENMASK(7, 0)

#define CH_OPCODE_FMASK			GENMASK(31, 24)



/** enum gsi_ch_cmd_opcode - CH_OPCODE field values in CH_CMD */

enum gsi_ch_cmd_opcode {

	GSI_CH_ALLOCATE				= 0x0,
@@ -238,6 +240,7 @@ enum gsi_ch_cmd_opcode { 
			(0x0001f010 + 0x4000 * (ee))

#define EV_CHID_FMASK			GENMASK(7, 0)

#define EV_OPCODE_FMASK			GENMASK(31, 24)



/** enum gsi_evt_cmd_opcode - EV_OPCODE field values in EV_CH_CMD */

enum gsi_evt_cmd_opcode {

	GSI_EVT_ALLOCATE			= 0x0,
@@ -252,6 +255,7 @@ enum gsi_evt_cmd_opcode { 
#define GENERIC_OPCODE_FMASK		GENMASK(4, 0)

#define GENERIC_CHID_FMASK		GENMASK(9, 5)

#define GENERIC_EE_FMASK		GENMASK(13, 10)



/** enum gsi_generic_cmd_opcode - GENERIC_OPCODE field values in GENERIC_CMD */

enum gsi_generic_cmd_opcode {

	GSI_GENERIC_HALT_CHANNEL		= 0x1,
@@ -275,6 +279,7 @@ enum gsi_generic_cmd_opcode { 
/* Fields below are present for IPA v4.2 and above */

#define GSI_USE_RD_WR_ENG_FMASK		GENMASK(30, 30)

#define GSI_USE_INTER_EE_FMASK		GENMASK(31, 31)



/** enum gsi_iram_size - IRAM_SIZE field values in HW_PARAM_2 */

enum gsi_iram_size {

	IRAM_SIZE_ONE_KB			= 0x0,
@@ -293,15 +298,16 @@ enum gsi_iram_size { 
			GSI_EE_N_CNTXT_TYPE_IRQ_MSK_OFFSET(GSI_EE_AP)

#define GSI_EE_N_CNTXT_TYPE_IRQ_MSK_OFFSET(ee) \

			(0x0001f088 + 0x4000 * (ee))



/* Values here are bit positions in the TYPE_IRQ and TYPE_IRQ_MSK registers */

enum gsi_irq_type_id {

	GSI_CH_CTRL		= 0,	/* channel allocation, etc.  */

	GSI_EV_CTRL		= 1,	/* event ring allocation, etc. */

	GSI_GLOB_EE		= 2,	/* global/general event */

	GSI_IEOB		= 3,	/* TRE completion */

	GSI_INTER_EE_CH_CTRL	= 4,	/* remote-issued stop/reset (unused) */

	GSI_INTER_EE_EV_CTRL	= 5,	/* remote-issued event reset (unused) */

	GSI_GENERAL		= 6,	/* general-purpose event */

	GSI_CH_CTRL		= 0x0,	/* channel allocation, etc.  */

	GSI_EV_CTRL		= 0x1,	/* event ring allocation, etc. */

	GSI_GLOB_EE		= 0x2,	/* global/general event */

	GSI_IEOB		= 0x3,	/* TRE completion */

	GSI_INTER_EE_CH_CTRL	= 0x4,	/* remote-issued stop/reset (unused) */

	GSI_INTER_EE_EV_CTRL	= 0x5,	/* remote-issued event reset (unused) */

	GSI_GENERAL		= 0x6,	/* general-purpose event */

};



#define GSI_CNTXT_SRC_CH_IRQ_OFFSET \
@@ -406,6 +412,7 @@ enum gsi_general_id { 
#define ERR_VIRT_IDX_FMASK		GENMASK(23, 19)

#define ERR_TYPE_FMASK			GENMASK(27, 24)

#define ERR_EE_FMASK			GENMASK(31, 28)



/** enum gsi_err_code - ERR_CODE field values in EE_ERR_LOG */

enum gsi_err_code {

	GSI_INVALID_TRE				= 0x1,
@@ -417,6 +424,7 @@ enum gsi_err_code { 
	/* 7 is not assigned */

	GSI_HWO_1				= 0x8,

};



/** enum gsi_err_type - ERR_TYPE field values in EE_ERR_LOG */

enum gsi_err_type {

	GSI_ERR_TYPE_GLOB			= 0x1,
@@ -435,6 +443,8 @@ enum gsi_err_type { 
			(0x0001f400 + 0x4000 * (ee))

#define INTER_EE_RESULT_FMASK		GENMASK(2, 0)

#define GENERIC_EE_RESULT_FMASK		GENMASK(7, 5)



/** enum gsi_generic_ee_result - GENERIC_EE_RESULT field values in SCRATCH_0 */

enum gsi_generic_ee_result {

	GENERIC_EE_SUCCESS			= 0x1,

	GENERIC_EE_CHANNEL_NOT_RUNNING		= 0x2,
@@ -444,6 +454,7 @@ enum gsi_generic_ee_result { 
	GENERIC_EE_RETRY			= 0x6,

	GENERIC_EE_NO_RESOURCES			= 0x7,

};



#define USB_MAX_PACKET_FMASK		GENMASK(15, 15)	/* 0: HS; 1: SS */

#define MHI_BASE_CHANNEL_FMASK		GENMASK(31, 24)

drivers/net/ipa/ipa_cmd.c

+3 −3
Original line number Diff line number Diff line
@@ -38,9 +38,9 @@ 


/* Some commands can wait until indicated pipeline stages are clear */

enum pipeline_clear_options {

	pipeline_clear_hps	= 0,

	pipeline_clear_src_grp	= 1,

	pipeline_clear_full	= 2,

	pipeline_clear_hps		= 0x0,

	pipeline_clear_src_grp		= 0x1,

	pipeline_clear_full		= 0x2,

};



/* IPA_CMD_IP_V{4,6}_{FILTER,ROUTING}_INIT */

drivers/net/ipa/ipa_cmd.h

+10 −11
Original line number Diff line number Diff line
@@ -27,16 +27,16 @@ struct gsi_channel; 
 * a request is *not* an immediate command.

 */

enum ipa_cmd_opcode {

	IPA_CMD_NONE			= 0,

	IPA_CMD_IP_V4_FILTER_INIT	= 3,

	IPA_CMD_IP_V6_FILTER_INIT	= 4,

	IPA_CMD_IP_V4_ROUTING_INIT	= 7,

	IPA_CMD_IP_V6_ROUTING_INIT	= 8,

	IPA_CMD_HDR_INIT_LOCAL		= 9,

	IPA_CMD_REGISTER_WRITE		= 12,

	IPA_CMD_IP_PACKET_INIT		= 16,

	IPA_CMD_DMA_SHARED_MEM		= 19,

	IPA_CMD_IP_PACKET_TAG_STATUS	= 20,

	IPA_CMD_NONE			= 0x0,

	IPA_CMD_IP_V4_FILTER_INIT	= 0x3,

	IPA_CMD_IP_V6_FILTER_INIT	= 0x4,

	IPA_CMD_IP_V4_ROUTING_INIT	= 0x7,

	IPA_CMD_IP_V6_ROUTING_INIT	= 0x8,

	IPA_CMD_HDR_INIT_LOCAL		= 0x9,

	IPA_CMD_REGISTER_WRITE		= 0xc,

	IPA_CMD_IP_PACKET_INIT		= 0x10,

	IPA_CMD_DMA_SHARED_MEM		= 0x13,

	IPA_CMD_IP_PACKET_TAG_STATUS	= 0x14,

};



/**
@@ -50,7 +50,6 @@ struct ipa_cmd_info { 
	enum dma_data_direction direction;

};





#ifdef IPA_VALIDATE



/**

drivers/net/ipa/ipa_endpoint.c

+5 −5
Original line number Diff line number Diff line
@@ -665,8 +665,8 @@ static u32 ipa_reg_init_hol_block_timer_val(struct ipa *ipa, u32 microseconds) 
	/* ...but we still need to fit into a 32-bit register */

	WARN_ON(ticks > U32_MAX);



	/* IPA v3.5.1 just records the tick count */

	if (ipa->version == IPA_VERSION_3_5_1)

	/* IPA v3.5.1 through v4.1 just record the tick count */

	if (ipa->version < IPA_VERSION_4_2)

		return (u32)ticks;



	/* For IPA v4.2, the tick count is represented by base and
@@ -1545,8 +1545,8 @@ int ipa_endpoint_config(struct ipa *ipa) 
	val = ioread32(ipa->reg_virt + IPA_REG_FLAVOR_0_OFFSET);



	/* Our RX is an IPA producer */

	rx_base = u32_get_bits(val, BAM_PROD_LOWEST_FMASK);

	max = rx_base + u32_get_bits(val, BAM_MAX_PROD_PIPES_FMASK);

	rx_base = u32_get_bits(val, IPA_PROD_LOWEST_FMASK);

	max = rx_base + u32_get_bits(val, IPA_MAX_PROD_PIPES_FMASK);

	if (max > IPA_ENDPOINT_MAX) {

		dev_err(dev, "too many endpoints (%u > %u)\n",

			max, IPA_ENDPOINT_MAX);
@@ -1555,7 +1555,7 @@ int ipa_endpoint_config(struct ipa *ipa) 
	rx_mask = GENMASK(max - 1, rx_base);



	/* Our TX is an IPA consumer */

	max = u32_get_bits(val, BAM_MAX_CONS_PIPES_FMASK);

	max = u32_get_bits(val, IPA_MAX_CONS_PIPES_FMASK);

	tx_mask = GENMASK(max - 1, 0);



	ipa->available = rx_mask | tx_mask;