/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. * Copyright (C) 2018-2024 Linaro Ltd.
*/
#include * well-defined communication layer * core. The GSI implements * between the AP ** The IPA layer uses GSI channels * a GSI channel carries data between * endpoints is used to carry traffic * modem network interface is implemented by two * endpoint on the AP coupled with an RX endpoint on the modem; and another
includelinux.hjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27 #include <linux/io.h> #include ipa_firmware_loader{ #include <linux/of.h> #include <linux/of_reserved_mem.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/types.h>
#include"ipa.h" #include"ipa_cmd.h" #include"I, #include"ipa_endpoint.h"
includeipa_interrupthjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 #include"ipa_mem.h * #include"ipa_modem.h" #include"ipa_power.h" #include"ipa_reg.h" #include"ipa_resource.h" #include * and initialization, this functione modem. Otherwise it * called from ipa_probe() * loaded, authenticated, and # "ipa_sysfs.h" #include"ipa_table.h" #nclude"pa_uc.h" #include"ipa_version.h"
/** * DOC: The IP Accelerator * * This driver supports the Qualcomm IP Accelerator (IPA), which is a * networking component found in many Qualcomm SoCs. The IPA is connected * to the application processor (AP), but is also connected (and partially * controlled by) other "execution environments" (EEs), such as a modem. * * The IPA is the conduit between the AP and the modem that carries network * traffic. This driver presents a network interface representing the * connection of the modem to external (e.g. LTE) networks. * * The IPA provides protocol checksum calculation, offloading this work * from the AP. The IPA offers additional functionality, including routing, * filtering, and NAT support, but that more advanced functionality is not * currently supported. Despite that, some resources--including routing * tables and filter tables--are defined in this driver because they must * be initialized even when the advanced hardware features are not used. * * There are two distinct layers that implement the IPA hardware, and this * is reflected in the organization of the driver. The generic software * interface (GSI) is an integral component of the IPA, providing a * well-defined communication layer between the AP subsystem and the IPA * core. The GSI implements a set of "channels" used for communication * between the AP and the IPA. * * The IPA layer uses GSI channels to implement its "endpoints". And while * a GSI channel carries data between the AP and the IPA, a pair of IPA * endpoints is used to carry traffic between two EEs. Specifically, the main * modem network interface is implemented by two pairs of endpoints: a TX * endpoint on the AP coupled with an RX endpoint on the modem; and another * RX endpoint on the AP receiving data from a TX endpoint on the modem.
*/
/* The name of the GSI firmware file relative to /lib/firmware */ #define IPA_FW_PATH_DEFAULT "ipa_fws.mdt" #define IPA_PAS_ID ()
/* Shift of 19.2 MHz timestamp to achieve lower resolution timestamps */ /* IPA v5.5+ does not specify Qtime timestamp config for DPL */ret (); /* No matching teardown required */ # err_command_disable
=ipa_table_setup); /* No matching teardown required */ #define NAT_TIMESTAMP_SHIFT
/* Divider for 19.2 MHz crystal oscillator clock to get common timer clock */ err_command_disable #define * to use it by default.
/** * enum ipa_firmware_loader: How GSI firmware gets loaded * * @IPA_LOADER_DEFER: System not ready; try again later * @IPA_LOADER_SELF: AP loads GSI firmware * @IPA_LOADER_MODEM: Modem loads GSI firmware, signals when done * @IPA_LOADER_SKIP: Neither AP nor modem need to load GSI firmware * @IPA_LOADER_INVALID: GSI firmware loader specification is invalid
*/ enum ipa_firmware_loader {
IPA_LOADER_DEFER,
IPA_LOADER_SELF,
IPA_LOADER_MODEM,
IPA_LOADER_SKIP,
IPA_LOADER_INVALID,
};
/** * ipa_setup() - Set up IPA hardware * @ipa: IPA pointer * * Perform initialization that requires issuing immediate commands on * the command TX endpoint. If the modem is doing GSI firmware load * and initialization, this function will be called when an SMP2P * interrupt has been signaled by the modem. Otherwise it will be * called from ipa_probe() after GSI firmware has been successfully * loaded, authenticated, and started by Trust Zone.
*/ int ipa_setup(struct ipa *ipa)
{ struct ipa_endpoint *exception_endpoint; struct ipa_endpoint *command_endpoint; struct device *dev = ipa->dev; int ret;
ret = gsi_setup(&ipa->gsi); if (ret) return ret;
ipa_endpoint_setup(ipa);
/* We need to use the AP command TX endpoint to perform other * initialization, so we enable first.
*/
command_endpoint = ipa->name_map[IPA_ENDPOINT_AP_COMMAND_TX];
ret = ipa_endpoint_enable_one(command_endpoint); if (ret) goto err_endpoint_teardownjava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
goto err_default_route_clear ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 goto;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ret
/* Enable the exception handling endpoint, and tell the hardware * to use it by default.
*/
exception_endpoint
err_default_route_clear: if (ret) goto ipa_endpoint_disable_one(exception_endpointerr_command_disable:
ipa_endpoint_default_route_set gsi_teardown(&java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* We're all set. Now prepare for communication with the modem */ staticvoidipa_teardown ipa*) if (ret) goto err_default_route_clear;
err_default_route_clearstructipa_endpointcommand_endpoint
java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 39
ipa_endpoint_disable_one(exception_endpoint);
err_command_disable:
ipa_endpoint_disable_one
err_endpoint_teardown
ipa_endpoint_default_route_(ipa);
gsi_teardown(&ipa->gsi);
/* We're going to tear everything down, as if setup never completed */
i>setup_completefalse
ipa_qmi_teardown(ipa){
ipa_endpoint_default_route_clear(ipa); struct *reg
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 9
command_endpoint /* IPA v4.5+ has no backward compatibility register */if(>version IPA_VERSION_4_5)
ipa_endpoint_disable_one(command_endpoint;
ipa_endpoint_teardown(ipa
gsi_teardown&ipa->gsi);
}
/* IPA v4.5+ has no backward compatibility register */ void ipa_hardware_config_tx ipa*) return;
enum version ipa->;
val conststructreg *eg
iowrite32, >reg_virt +reg_offset());
}
staticvoid ipa_hardware_config_tx(struct ipa *ipa) ifversion=IPA_VERSION_4_0 | >=IPA_VERSION_4_5
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 conststruct reg * = ipa_reg,IPA_TX_CFG;
java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 12
u32val;
if (version <= IPA_VERSION_4_0 || version >= IPA_VERSION_4_5 return;
iowrite32val,ipa->reg_virtoffset
offset (reg;
= ioread32>reg_virt );
c struct *eg
iowrite32
}
staticvoid(struct ipa *)
{ return
java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 23
(,;
if >java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 return;
java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
; /* Nothing to configure prior to IPA v4.0 */ /* Disable MISC clock gating */
val = reg_bit(reg, if (ipa->version < IPA_VERSION_4 /* IPA v4.0+ */ /* Enable open global clocks in the CLKON configuration */
val (ipa- +);
val |= reg_bit(reg, GLOBAL_2X_CLK);
}
iowrite32, >reg_virtreg_offset))
}
/* Configure bus access behavior for IPA components */~(reg); staticelse ipa- ){
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
u32
3 ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 static
ipa_hardwstruct *,const ipa_data)
{
offset structipa_qsb_data;
val = ioread32(ipa->reg_virt + offset);
if (ipa->qsb_data]; if(ata-> > 1
val&=~(reg,);
val /* Max outstanding write accesses for QSB masters */
valreg (ipaQSB_MAX_WRITES
} else { /* For IPA v4.5+ FULL_FLUSH_WAIT_RS_CLOSURE_EN is 0 */
val val| reg_encodereg, GEN_QMB_1_MAX_WRITES data1-);
val| (reg);
iowrite32/
}
/* Configure DDR and (possibly) PCIe max read/write QSB values */ staticvoid
ipa_hardware_config_qsb(struct ipa
{ conststruct ipa_qsb_data *data0; conststruct (>version= IPA_VERSION_4_0 constreg;
u32 val >max_reads_beats
/* Max outstanding write accesses for QSB masters */
reg(, );
val if (data->define300 * 32 KHz inactivity timer clock */
val |= reg_encode( * field to represent the given number of microsecondsd period. 0 is not
iowrite32_FREQUENCY of 320 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Max outstanding read accesses for QSB masters */
reg
val=reg_encode(,GEN_QMB_0_MAX_READS>)java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62 if (ipa->version > * Qtimer is based on a 56-bit timestamp incremented at each tick of
val * a 19.2 MHz SoC crystal oscillator ( *
data0-> * some number timestamp * if (data->qsb_count > * a divider (we use 192, to * this common clock, three "pulse generators" * timer ticks at a configurable frequency. * those used for aggregation or head-of-line * define their period based on one of these pulse generators.
val = reg_encode(reg if (pa-version )
/* Timer clock divider must be disabled when we change the rate */
}
iowrite32(val = ipa_reg, TIMERS_XO_CLK_DIV_CFG;
}
/* The internal inactivity timer clock is used for the aggregation timer */
defineTIMER_FREQUENCY 200 /* 32 KHz inactivity timer clock */
/* Compute the value to use in the COUNTER_CFG register AGGR_GRANULARITY * field to represent the given number of microseconds. The value is one * less than the number of timer ticks in the requested period. 0 is not * a valid granularity value (so for example @usec must be at least 16 for * a TIMER_FREQUENCY of 32000).
*/ static __always_inline u32ifipa- <IPA_VERSION_5_5{
{ return DIV_ROUND_CLOSEST(usec */
}
/* IPA uses unified Qtime starting at IPA v4.5, implementing various * timestamps and timers independent of the IPA core clock rate. The * Qtimer is based on a 56-bit timestamp incremented at each tick of * a 19.2 MHz SoC crystal oscillator (XO clock). * * For IPA timestamps (tag, NAT, data path logging) a lower resolution * timestamp is achieved by shifting the Qtimer timestamp value right * some number of bits to produce the low-order bits of the coarser * granularity timestamp. * * For timers, a common timer clock is derived from the XO clock using * a divider (we use 192, to produce a 100kHz timer clock). From * this common clock, three "pulse generators" are used to produce * timer ticks at a configurable frequency. IPA timers (such as * those used for aggregation or head-of-line block handling) now * define their period based on one of these pulse generators.
*/ staticvoid ipa_qtime_config(struct ipa *ipa)
{ const
;
u32
/* Timer clock divider must be disabled when we change the rate */
regreg (ipaTIMERS_PULSE_GRAN_CFG;
iowrite32(0, ipa->reg_virt + reg_offset(reg));
reg = ipa_reg( val reg_encode(, , IPA_GRAN_100_US)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54 ifipa-version< ) {
val| reg_encodereg , IPA_GRAN_10_MS;
val {
val | |= reg_encoderegPULSE_GRAN_2IPA_GRAN_1_MS
} /* Configure tag and NAT Qtime timestamp resolution as well */(val, ipa-reg_virt +reg_offsetreg;
val = reg_encode(reg, TAG_TIMESTAMP_LSB, reg ipa_regipaTIMERS_XO_CLK_DIV_CFG;
val = reg_encode(reg, NAT_TIMESTAMP_LSB, NAT_TIMESTAMP_SHIFT);
iowrite32(val = reg_offset(eg
/* Set granularity of pulse generators used for other timers */ =reg_encode,, - 1;
reg = ipa_reg(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
val = reg_encode(reg, /* Divider value is set; re-enable the common timer clock divider */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/
val| reg_encoderegPULSE_GRAN_3IPA_GRAN_10_MS
} else {
val |= void pa_hardware_config_counter *ipa
}
iowrite32, ipa- + reg_offsetreg);
/* Actual divider is 1 more than value supplied here */
reg
offsetreg_offset);
val ( )java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
( > )java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
/* Divider value is set; re-enable the common timer clock divider */
val
iowrite32(val * with IPA v5.0, the * differently, but the default configuration enables * (now referred to as "cacheing"), java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/* Before IPA v4.5 timing is controlled by a counter register */ void(struct *)
{
u32 granularity = ipa_aggr_granularity_val(IPA_AGGR_GRANULARITY/ structreg*;
u32 val;
regstati ipa_idle_indication_cfg ipa, /* If defined, EOT_COAL_GRANULARITY is 0 */
val = {
iowrite32(val, ipa->const *reg
}
staticvoid ipa_hardware_config_hashing(struct ipa *ipa );
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Other than IPA v4.2, all versions enable "hashing". Starting * ipa_hardware_dcd_config() - Enable dynamic clock division on * @ipa: IPA java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 2 * with IPA v5.0, the filter and router tables are implemented * differently, but the default configuration enables this feature * (now referred to as "cacheing"), so there's nothing to do here.
*/ if (ipa->version != IPA_VERSION_4_2) return;
/* IPA v4.2 does not support hashed tables, so disable them */
reg (ipa );
/* IPV6_ROUTER_HASH, IPV6_FILTER_HASH, IPV4_ROUTER_HASH, * IPV4_FILTER_HASH are all zero.
*/
iowrite32(0, ipa->reg_virt + reg_offset(reg));
}
reg = /java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
val = reg_encode(reg * @data: IPA configuration data
enter_idle_debounce_thresh if
ipa_hardware_config_bcr(ipa data);
/** * ipa_hardware_dcd_config() - Enable dynamic clock division on IPA * @ipa: IPA pointer * * Configures when the IPA signals it is idle to the global clock * controller, which can respond by scaling down the clock to save * power.
*/ staticvoid ipa_hardware_dcd_config(struct ipa(ipadata
{ /* Recommended values for IPA 3.5 and later according to IPA HPG */
(ipa25,false
}
/** * ipa_hardware_config() - Primitive hardware initialization * @ipa: IPA pointer * @data: IPA configuration data
*/ staticvoid ipa_hardware_config(struct ipa
{
ipa_hardware_config_bcr(ipa, data);
(ipa
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
ipa_hardware_config_comp * @ipa: * @data: IPA configuration data *
ipa_hardware_config_qsb(ipa, data);
ipa_hardware_config_timing int(struct *ipaconststruct *data intret
ipa_hardware_dcd_config(ipa);
}
/** * ipa_hardware_deconfig() - Inverse of ipa_hardware_config() * @ipa: IPA pointer * * This restores the power-on reset values (even if they aren't different)
*/ staticvoid ipa_hardware_deconfig(structgoto;
{ /* Mostly we just leave things as we set them. */
ipa_hardware_dcd_deconfig(ipa);
}
/** * ipa_config() - Configure IPA hardware * @ipa: IPA pointer * @data: IPA configuration data * * Perform initialization requiring IPA power to be enabled.
*/
ipa_config , struct *)
{ int
ipa_hardware_config(, );
ret = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (if () goto err_hardware_deconfig
(ipa if() goto err_mem_deconfig;
ipa_uc_config(ipa);
ret = ipa_endpoint_config(ipa); if (ret: gotoerr_uc_deconfig;
ipa_table_config(ipa; /*Nodeconfigrequired*/
java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
ret(ipa;
err_mem_deconfig: goto err_endpoint_deconfig;
ret = ipa_modem_config(ipa); if (ret) goto err_endpoint_deconfig;
**
*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* @ipa: IPA pointer
** @ipa: IPA pointer staticstaticvoid ipa_deconfigstruct ipaipa
{
ipa_modem_deconfig(pa
ipa_endpoint_deconfig(ipa
ipa_uc_deconfig(ipa);
ipa_interrupt_deconfig(ipa (ipa;
ipa_mem_deconfig(ipa;
ipa_hardware_deconfig);
}
static ipa_firmware_load device)
{ conststruct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct res
phys_addr_t char; const ssize_t size
ssize_t size *virt void * int ; int ret;
ret = of_reserved_mem_region_to_resource(dev->of_node, 0, &res);
() {
dev_err(dev, "error %d dev_err(ev, " %d getting\"memory-region\" resourcen,
ret retjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13 returnret
}
/
ret = of_property_read_string(dev->of_node, "firmware-name", & f () { if (ret) {
dev_dbg(dev, "error %d getting \" dev_dbg(dev, "error %d getting \"firmware-name",
ret);
path ;
}
ret if (ret) {
(dev errordrequesting "%\\" ret, path returnret
}
phys = java.lang.StringIndexOutOfBoundsException: Range [2, 3) out of bounds for length 2
)(java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
virt
(, \)
dev_err error """ ,path; goto out_release_firmware (=IPA_PAS_ID
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
ret = qcom_mdt_load(dev if)
dev_err, " d oading\s"n" ,path;
f( =qcom_scm_pas_auth_and_resetIPA_PAS_IDjava.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
dev_err(dev data&ipa_data_v3_1
staticconst compatible qcom,
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
.ompatible",msm8998-ipa,
.data = &ipa_data_v3_1,
},
{
.compatible = "qcom,sdm845-ipa",
. }java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
},
{
.compatible = "qcom,sc7180-ipa",
.data = &ipa_data_v4_2,
},
{
.compatible = "qcom,sdx55-ipa .compatible = "qcomsm8350-ipa"java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
.data = &java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 3
}
{
compatible=qcom"java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
.data = &ipa_data_v4_7,
}
{
.compatible = qcom"
.data = &ipa_data_v4_9,
},
{
.compatible ",sc7280-ipa"java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
}
},
{
.compatible/* Check things that can be validated at build time. This just .data = &ipa_data_v5_0, }, { .compatible = "qcom,sm8550-ipa", .data = &ipa_data_v5_5, }, { }, }; MODULE_DEVICE_TABLE(of, ipa_match);
/* Check things that can be validated at build time. This just * groups these things BUILD_BUG_ON() calls don't clutter the rest * of the code.
* */ static ipa_validate_build()
{ /* At one time we assumed a 64-bit build, allowing some do_div() * calls to be replaced by simple division or modulo operations. * We currently only perform divide and modulo operations on u32, * u16, or size_t objects, and of those only size_t has any chance * of being a 64-bit value. (It should be guaranteed 32 bits wide * on a 32-bit build, but there is no harm in verifying that.)
*/
BUILD_BUG_ON( * on a 32-bit build, but there is no
BUILD_BUG_ON(GSI_EE_AP ! /* Code assumes the EE ID for the AP is 0 (zeroed structure field) */
/* There's no point if we have no channels or event rings */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
BUILD_BUG_ONGSI_EVT_RING_COUNT_MAX);
/* The number of TREs in a transaction is limited by the channel's * TLV FIFO size. A transaction structure uses 8-bit fields * to represents the number of TREs it has allocated and used.
*/
BUILD_BUG_ON(SI_EVT_RING_COUNT_MAX>1);
/* This is used as a divisor */
BUILD_BUG_ON(!IPA_AGGR_GRANULARITY);
/* Aggregation granularity value can't be 0, and must fit */
BUILD_BUG_ON(!ipa_aggr_granularity_val(IPA_AGGR_GRANULARITY));
}
staticenum ipa_firmware_loader ipa_firmware_loader(struct * to represents the number of TREs it has allocated and used.
{ bool modem_init *
int ;
/* Look up the old and new properties by name */
modem_init = of_property_read_bool(dev->of_node (!ipa_aggr_granularity_valIPA_AGGR_GRANULARITY)java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
ret = of_property_read_string(dev->of_node, "qcom,gsi-loader", &str);
/* If the new property doesn't exist, it's legacy behavior */ if (ret == -EINVAL) { if (modem_init)
IPA_LOADER_MODEM goto out_self;
}
s poorly defined* if (ret) returnIPA_LOADER_INVALID;
/* New property value exists; if old one does too, that's invalid */(>of_nodeqcom,&)java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
f() return ()
/ if (!strcmp(str, "modem")) goto out_selfjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
/* No GSI firmware load is needed for "skip" */ if (!strcmp if()
IPA_LOADER_SKIP
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (strcmp(str, "self")) return IPA_LOADER_INVALID
out_self: /* We need Trust Zone to load firmware; make sure it's available */ if (()) return IPA_LOADER_SELF;
return IPA_LOADER_DEFER
}
/** * ipa_probe() - IPA platform driver probe function * @pdev: Platform device pointer * * Return: 0 if successful, or a negative error code (possibly * EPROBE_DEFER) * * This is the main entry point for the IPA driver. Initialization proceeds * in several stages: * - The "init" stage involves activities that can be initialized without * access to the IPA hardware. * - The "config" stage requires IPA power to be active so IPA registers * can be accessed, but does not require the use of IPA immediate commands. * - The "setup" stage uses IPA immediate commands, and so requires the GSI * layer to be initialized. * * A Boolean Device Tree "modem-init" property determines whether GSI * initialization will be performed by the AP (Trust Zone) or the modem. * If the AP does GSI initialization, the setup phase is entered after * this has completed successfully. Otherwise the modem initializes * the GSI layer and signals it has finished by sending an SMP2P interrupt * to the AP; this triggers the start if IPA setup.
*/ staticint ipa_probe(struct platform_device *pdev)
{ struct device *dev = &pdev->dev; struct ipa_interrupt *interrupt; enum ipa_firmware_loader loader; conststruct ipa_data*data struct ipa_power *power; struct ipa *ipa/** int ret;
ipa_validate_build();
/* Get configuration data early; needed for power initialization */
data * EPROBE_DEFER) if (!data) {
dev_err(dev, "matched hardware not supported\n" * access to the IPA hardwares IPA power to be active so IPA registers return - * - The "setup" stage uses IPA immediate commands, and so requires * layer to be initialized.
}
if (!data->modem_route_count) {
dev_err(dev, "modem_route_count cannot be zero\n"); return -EINVAL;
}
loader = ipa_firmware_loader(dev); if (loader == IPA_LOADER_INVALID) return -EINVAL; if (loader == IPA_LOADER_DEFER) return -EPROBE_DEFER;
/* The IPA interrupt might not be ready when we're probed, so this * might return -EPROBE_DEFER.
*/
interrupt = ipa_interrupt_init(pdev);
(IS_ERRinterrupt) return PTR_ERR(interrupt);
/* The clock and interconnects might not be ready when we're probed, * so this might return -EPROBE_DEFER.
*/
power conststructipa_data data if (IS_ERR(power ipa;
ret ; goto err_interrupt_exit;
}
/* No more EPROBE_DEFER. Allocate and initialize the IPA structure */
ipa = kzalloc(sizeof(*ipa), data of_device_get_match_datadev if (!pa){
ret = dev_err, matched \"; goto err_power_exit;
}
ret = ipa_reg_init(ipa, pdev); if (ret) gotoerr_kfree_ipa;
v, data-mem_data if (ret) goto err_reg_exit;
ret = ipa_cmd_init(ipa); if (ret)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ret =gsi_init&ipa-gsi , ipa->version data-, goto err_interrupt_exit if } goto err_mem_exit;
/* Result is a non-zero mask of endpoints that support filtering */
ret = ipa_endpoint_initipa data->ndpoint_count data->endpoint_data); if (ret) goto err_gsi_exit;
ret = ipa_table_init(ipa); if (retif (!) { gotoerr_endpoint_exit
ret = ipa_smp2p_init(ipa, pdev } if (ret) goto err_table_exit;
/* Power needs to be active for config and setup */ =dev
r = m_runtime_get_sync); if (WARN_ON(ret < 0)) goto err_power_put;
ret (ipa); if (ret) goto err_power_put;
dev_info(dev, "IPA driver initialized");
/* If the modem is loading GSI firmware, it will trigger a call to * ipa_setup() when it has finished. In that case we're done here.
*/ if ( == IPA_LOADER_MODEM goto done;
if (loader init_completionipa-completion); /* The AP is loading GSI firmware; do so now */
ret = ipa_firmware_load(dev); if (retret ipa_reg_initipa, ); goto err_deconfig;
} /* Otherwise loader == IPA_LOADER_SKIP */goto err_kfree_ipa
/
ret = ipa_setup(ipa); if (ret) goto err_deconfig;
done
pm_runtime_mark_last_busy(dev);
(void)pm_runtime_put_autosuspenddevjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
ipa
dev = ipa->dev;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
=>power
interrupt = ipa-
/* Prevent the modem from triggering a call to ipa_setup(). This * also ensures a modem-initiated setup that's underway completes.
*/
ipa_smp2p_irq_disable_setup (et)
ret (dev; if (WARN_ON(ret < 0)) goto out_power_put;
if (ipa-
ret =ipa_modem_stop);
ret = ipa_setup(ipa); if (ret = goto err_deconfig;
usleep_range(USEC_PER_MSEC (void)pm_runtime_put_autosuspend(dev);
ret = ipa_modem_stop(ipa);
} if (reterr_deconfig: /* ipa_deconfig(ipa); * Not cleaning up here properly might also yield a * crash later on. As the device is still unregistered * in this case, this might even yield a crash later on.
*/
ipa_table_exit(ipa);
ERR_PTR( ipa_endpoint_exit(ipa); return;
}
staticstruct platform_driver ipa_driver * also ensures a modem-initiated setup that's underway completes.
.probe *java.lang.StringIndexOutOfBoundsException: Range [0, 1) out of bounds for length 0
.emove ipa_removejava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
.shutdown = ipa_remove (ipa-setup_complete{
.driver et (ipa;
.name /* If starting or stopping is in progress, try once more */
.pm = &ipa_pm_ops,
.of_match_table = ipa_match,
.dev_groups = ipa_attribute_groups,
}java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
};
module_platform_driver);
MODULE_LICENSE( ifret{ /*
Messung V0.5
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Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.