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Commit 7a508a21 authored by Mohammed Javid's avatar Mohammed Javid
Browse files

msm:ipa3: code changes to support WDI2 offload over GSI 



code changes to support WDI2 offload over GSI on SM6150 target.

Change-Id: I0b5c44d3963c64b5d49fcf3db8795d0b3ffc3947
Acked-by: default avatarAshok Vuyyuru <avuyyuru@qti.qualcomm.com>
Signed-off-by: default avatarMohammed Javid <mjavid@codeaurora.org>
parent 23cc55e8

Documentation/devicetree/bindings/platform/msm/ipa.txt

+2 −0
Original line number Diff line number Diff line
@@ -91,6 +91,8 @@ memory allocation over a PCIe bridge 
				hashing not supported.

- qcom,wlan-ce-db-over-pcie: Boolean context flag to represent WLAN CE DB

				over pcie bus or not.

- qcom,ipa-wdi2_over_gsi: Boolean context flag to indicate WDI2 offload over GSI

				supported or not.



IPA pipe sub nodes (A2 static pipes configurations):

drivers/platform/msm/gsi/gsi.c

+23 −1
Original line number Diff line number Diff line
@@ -1268,12 +1268,27 @@ static void gsi_prime_evt_ring(struct gsi_evt_ctx *ctx) 
	spin_unlock_irqrestore(&ctx->ring.slock, flags);

}



static void gsi_prime_evt_ring_wdi(struct gsi_evt_ctx *ctx)

{

	unsigned long flags;



	spin_lock_irqsave(&ctx->ring.slock, flags);

	if (ctx->ring.base_va)

		memset((void *)ctx->ring.base_va, 0, ctx->ring.len);

	ctx->ring.wp_local = ctx->ring.base +

		((ctx->ring.max_num_elem + 2) * ctx->ring.elem_sz);

	gsi_ring_evt_doorbell(ctx);

	spin_unlock_irqrestore(&ctx->ring.slock, flags);

}



static int gsi_validate_evt_ring_props(struct gsi_evt_ring_props *props)

{

	uint64_t ra;



	if ((props->re_size == GSI_EVT_RING_RE_SIZE_4B &&

				props->ring_len % 4) ||

			(props->re_size == GSI_EVT_RING_RE_SIZE_8B &&

				 props->ring_len % 8) ||

			(props->re_size == GSI_EVT_RING_RE_SIZE_16B &&

				 props->ring_len % 16)) {

		GSIERR("bad params ring_len %u not a multiple of RE size %u\n",
@@ -1406,6 +1421,8 @@ int gsi_alloc_evt_ring(struct gsi_evt_ring_props *props, unsigned long dev_hdl, 
	atomic_inc(&gsi_ctx->num_evt_ring);

	if (props->intf == GSI_EVT_CHTYPE_GPI_EV)

		gsi_prime_evt_ring(ctx);

	else if (props->intf == GSI_EVT_CHTYPE_WDI_EV)

		gsi_prime_evt_ring_wdi(ctx);

	mutex_unlock(&gsi_ctx->mlock);



	spin_lock_irqsave(&gsi_ctx->slock, flags);
@@ -1479,7 +1496,8 @@ int gsi_dealloc_evt_ring(unsigned long evt_ring_hdl) 
		return -GSI_STATUS_NODEV;

	}



	if (evt_ring_hdl >= gsi_ctx->max_ev) {

	if (evt_ring_hdl >= gsi_ctx->max_ev ||

			evt_ring_hdl >= GSI_EVT_RING_MAX) {

		GSIERR("bad params evt_ring_hdl=%lu\n", evt_ring_hdl);

		return -GSI_STATUS_INVALID_PARAMS;

	}
@@ -1658,6 +1676,8 @@ int gsi_reset_evt_ring(unsigned long evt_ring_hdl) 


	if (ctx->props.intf == GSI_EVT_CHTYPE_GPI_EV)

		gsi_prime_evt_ring(ctx);

	if (ctx->props.intf == GSI_EVT_CHTYPE_WDI_EV)

		gsi_prime_evt_ring_wdi(ctx);

	mutex_unlock(&gsi_ctx->mlock);



	return GSI_STATUS_SUCCESS;
@@ -1881,6 +1901,8 @@ static int gsi_validate_channel_props(struct gsi_chan_props *props) 


	if ((props->re_size == GSI_CHAN_RE_SIZE_4B &&

				props->ring_len % 4) ||

			(props->re_size == GSI_CHAN_RE_SIZE_8B &&

				 props->ring_len % 8) ||

			(props->re_size == GSI_CHAN_RE_SIZE_16B &&

				 props->ring_len % 16) ||

			(props->re_size == GSI_CHAN_RE_SIZE_32B &&

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

+8 −0
Original line number Diff line number Diff line
@@ -5100,6 +5100,7 @@ static int ipa3_pre_init(const struct ipa3_plat_drv_res *resource_p, 
	ipa3_ctx->use_ipa_teth_bridge = resource_p->use_ipa_teth_bridge;

	ipa3_ctx->modem_cfg_emb_pipe_flt = resource_p->modem_cfg_emb_pipe_flt;

	ipa3_ctx->ipa_wdi2 = resource_p->ipa_wdi2;

	ipa3_ctx->ipa_wdi2_over_gsi = resource_p->ipa_wdi2_over_gsi;

	ipa3_ctx->ipa_fltrt_not_hashable = resource_p->ipa_fltrt_not_hashable;

	ipa3_ctx->use_64_bit_dma_mask = resource_p->use_64_bit_dma_mask;

	ipa3_ctx->wan_rx_ring_size = resource_p->wan_rx_ring_size;
@@ -5679,6 +5680,7 @@ static int get_ipa_dts_configuration(struct platform_device *pdev, 
	ipa_drv_res->ipa3_hw_mode = 0;

	ipa_drv_res->modem_cfg_emb_pipe_flt = false;

	ipa_drv_res->ipa_wdi2 = false;

	ipa_drv_res->ipa_wdi2_over_gsi = false;

	ipa_drv_res->ipa_mhi_dynamic_config = false;

	ipa_drv_res->use_64_bit_dma_mask = false;

	ipa_drv_res->use_bw_vote = false;
@@ -5761,6 +5763,12 @@ static int get_ipa_dts_configuration(struct platform_device *pdev, 
	IPADBG(": modem configure embedded pipe filtering = %s\n",

			ipa_drv_res->modem_cfg_emb_pipe_flt

			? "True" : "False");

	ipa_drv_res->ipa_wdi2_over_gsi =

			of_property_read_bool(pdev->dev.of_node,

			"qcom,ipa-wdi2_over_gsi");

	IPADBG(": WDI-2.0 over gsi= %s\n",

			ipa_drv_res->ipa_wdi2_over_gsi

			? "True" : "False");



	ipa_drv_res->ipa_wdi2 =

			of_property_read_bool(pdev->dev.of_node,

drivers/platform/msm/ipa/ipa_v3/ipa_i.h

+26 −0
Original line number Diff line number Diff line
@@ -787,6 +787,7 @@ struct ipa3_ep_context { 
	bool keep_ipa_awake;

	struct ipa3_wlan_stats wstats;

	u32 uc_offload_state;

	u32 gsi_offload_state;

	bool disconnect_in_progress;

	u32 qmi_request_sent;

	bool napi_enabled;
@@ -1277,6 +1278,19 @@ struct ipa3_uc_wdi_ctx { 
#endif

};



/**

 * struct ipa3_wdi2_ctx - IPA wdi2 context

 */

struct ipa3_wdi2_ctx {

	phys_addr_t rdy_ring_base_pa;

	phys_addr_t rdy_ring_rp_pa;

	u32 rdy_ring_size;

	phys_addr_t rdy_comp_ring_base_pa;

	phys_addr_t rdy_comp_ring_wp_pa;

	u32 rdy_comp_ring_size;

	u32 *rdy_ring_rp_va;

	u32 *rdy_comp_ring_wp_va;

};

/**

 * struct ipa3_transport_pm - transport power management related members

 * @transport_pm_mutex: Mutex to protect the transport_pm functionality.
@@ -1568,6 +1582,7 @@ struct ipa3_context { 
	bool use_ipa_teth_bridge;

	bool modem_cfg_emb_pipe_flt;

	bool ipa_wdi2;

	bool ipa_wdi2_over_gsi;

	bool ipa_fltrt_not_hashable;

	bool use_64_bit_dma_mask;

	/* featurize if memory footprint becomes a concern */
@@ -1630,6 +1645,7 @@ struct ipa3_context { 
	bool use_ipa_pm;

	bool vlan_mode_iface[IPA_VLAN_IF_MAX];

	bool wdi_over_pcie;

	struct ipa3_wdi2_ctx wdi2_ctx;

};



struct ipa3_plat_drv_res {
@@ -1650,6 +1666,7 @@ struct ipa3_plat_drv_res { 
	u32 ee;

	bool modem_cfg_emb_pipe_flt;

	bool ipa_wdi2;

	bool ipa_wdi2_over_gsi;

	bool ipa_fltrt_not_hashable;

	bool use_64_bit_dma_mask;

	bool use_bw_vote;
@@ -2161,10 +2178,17 @@ int ipa3_sys_update_gsi_hdls(u32 clnt_hdl, unsigned long gsi_ch_hdl, 


int ipa3_connect_wdi_pipe(struct ipa_wdi_in_params *in,

		struct ipa_wdi_out_params *out);

int ipa3_connect_gsi_wdi_pipe(struct ipa_wdi_in_params *in,

		struct ipa_wdi_out_params *out);



int ipa3_disconnect_wdi_pipe(u32 clnt_hdl);

int ipa3_enable_wdi_pipe(u32 clnt_hdl);

int ipa3_enable_gsi_wdi_pipe(u32 clnt_hdl);

int ipa3_disable_wdi_pipe(u32 clnt_hdl);

int ipa3_disable_gsi_wdi_pipe(u32 clnt_hdl);

int ipa3_disconnect_gsi_wdi_pipe(u32 clnt_hdl);

int ipa3_resume_wdi_pipe(u32 clnt_hdl);

int ipa3_resume_gsi_wdi_pipe(u32 clnt_hdl);

int ipa3_suspend_wdi_pipe(u32 clnt_hdl);

int ipa3_get_wdi_stats(struct IpaHwStatsWDIInfoData_t *stats);

u16 ipa3_get_smem_restr_bytes(void);
@@ -2414,6 +2438,7 @@ void ipa3_delete_dflt_flt_rules(u32 ipa_ep_idx); 


int ipa3_enable_data_path(u32 clnt_hdl);

int ipa3_disable_data_path(u32 clnt_hdl);

int ipa3_disable_gsi_data_path(u32 clnt_hdl);

int ipa3_alloc_rule_id(struct idr *rule_ids);

int ipa3_id_alloc(void *ptr);

void *ipa3_id_find(u32 id);
@@ -2436,6 +2461,7 @@ int ipa3_tag_aggr_force_close(int pipe_num); 


void ipa3_active_clients_unlock(void);

int ipa3_wdi_init(void);

int ipa3_write_qmapid_gsi_wdi_pipe(u32 clnt_hdl, u8 qmap_id);

int ipa3_write_qmapid_wdi_pipe(u32 clnt_hdl, u8 qmap_id);

int ipa3_tag_process(struct ipa3_desc *desc, int num_descs,

		    unsigned long timeout);

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

+878 −0

File changed.

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