| /Linux-v5.10/drivers/net/ipa/ |
| D | ipa_main.c | 22 #include "ipa.h"
38 * This driver supports the Qualcomm IP Accelerator (IPA), which is a
39 * networking component found in many Qualcomm SoCs. The IPA is connected
43 * The IPA is the conduit between the AP and the modem that carries network
47 * The IPA provides protocol checksum calculation, offloading this work
48 * from the AP. The IPA offers additional functionality, including routing,
54 * There are two distinct layers that implement the IPA hardware, and this
56 * interface (GSI) is an integral component of the IPA, providing a
57 * well-defined communication layer between the AP subsystem and the IPA
59 * between the AP and the IPA.
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| D | ipa_mem.c | 15 #include "ipa.h"
33 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_mem_zero_region_add() local
34 dma_addr_t addr = ipa->zero_addr; in ipa_mem_zero_region_add()
43 * ipa_mem_setup() - Set up IPA AP and modem shared memory areas
44 * @ipa: IPA pointer
46 * Set up the shared memory regions in IPA local memory. This involves
48 * the IPA where it's located.
58 int ipa_mem_setup(struct ipa *ipa) in ipa_mem_setup() argument
60 dma_addr_t addr = ipa->zero_addr; in ipa_mem_setup()
68 trans = ipa_cmd_trans_alloc(ipa, 4); in ipa_mem_setup()
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| D | ipa_interrupt.c | 7 /* DOC: IPA Interrupts
9 * The IPA has an interrupt line distinct from the interrupt used by the GSI
11 * transfer completions), IPA interrupts are related to other events related
12 * to the IPA. Some of the IPA interrupts come from a microcontroller
13 * embedded in the IPA. Each IPA interrupt type can be both masked and
16 * Two of the IPA interrupts are initiated by the microcontroller. A third
17 * can be generated to signal the need for a wakeup/resume when an IPA
18 * endpoint has been suspended. There are other IPA events, but at this
25 #include "ipa.h"
32 * struct ipa_interrupt - IPA interrupt information
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| D | ipa_modem.c | 14 #include "ipa.h"
34 /** struct ipa_priv - IPA network device private data */
36 struct ipa *ipa; member
43 struct ipa *ipa = priv->ipa; in ipa_open() local
46 ret = ipa_endpoint_enable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]); in ipa_open()
49 ret = ipa_endpoint_enable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]); in ipa_open()
58 ipa_endpoint_disable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]); in ipa_open()
67 struct ipa *ipa = priv->ipa; in ipa_stop() local
71 ipa_endpoint_disable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]); in ipa_stop()
72 ipa_endpoint_disable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]); in ipa_stop()
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| D | ipa_table.h | 11 struct ipa;
26 * @ipa: IPA pointer
30 bool ipa_table_valid(struct ipa *ipa);
34 * @ipa: IPA pointer
38 bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask);
42 static inline bool ipa_table_valid(struct ipa *ipa) in ipa_table_valid() argument
47 static inline bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask) in ipa_filter_map_valid() argument
56 * @ipa: IPA pointer
59 void ipa_table_reset(struct ipa *ipa, bool modem);
63 * @ipa: IPA pointer
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| D | ipa_table.c | 17 #include "ipa.h"
28 * DOC: IPA Filter and Route Tables
30 * The IPA has tables defined in its local shared memory that define filter
39 * Hashed operation is not supported by all IPA hardware.
49 * and so on. Space is set aside in IPA local memory to hold as many
56 * IPA filtering functionality.
58 * IPA Filter Table
77 * though the AP currently does not use the IPA routing functionality.
79 * IPA Route Table
99 /* IPA hardware constrains filter and route tables alignment */
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| D | ipa_endpoint.h | 19 struct ipa;
43 * struct ipa_endpoint - IPA endpoint information
48 struct ipa *ipa; member
70 void ipa_endpoint_modem_hol_block_clear_all(struct ipa *ipa);
72 void ipa_endpoint_modem_pause_all(struct ipa *ipa, bool enable);
74 int ipa_endpoint_modem_exception_reset_all(struct ipa *ipa);
86 void ipa_endpoint_suspend(struct ipa *ipa);
87 void ipa_endpoint_resume(struct ipa *ipa);
89 void ipa_endpoint_setup(struct ipa *ipa);
90 void ipa_endpoint_teardown(struct ipa *ipa);
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| D | ipa_cmd.c | 15 #include "ipa.h"
22 * DOC: IPA Immediate Commands
24 * The AP command TX endpoint is used to issue immediate commands to the IPA.
25 * An immediate command is generally used to request the IPA do something
74 /* For IPA v4.0+, this opcode gets modified with pipeline clear options */
80 __le16 flags; /* Unused/reserved for IPA v3.5.1 */
84 __le32 clear_options; /* Unused/reserved for IPA v4.0+ */
88 /* The next field is present for IPA v4.0 and above */
90 /* The next field is present for IPA v3.5.1 only */
93 /* The next field and its values are present for IPA v3.5.1 only */
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| D | ipa_endpoint.c | 16 #include "ipa.h"
81 * IPA hardware as a number of KB. We don't use "hard byte in ipa_endpoint_validate_build()
102 static bool ipa_endpoint_data_valid_one(struct ipa *ipa, u32 count, in ipa_endpoint_data_valid_one() argument
107 struct device *dev = &ipa->pdev->dev; in ipa_endpoint_data_valid_one()
183 static bool ipa_endpoint_data_valid(struct ipa *ipa, u32 count, in ipa_endpoint_data_valid() argument
187 struct device *dev = &ipa->pdev->dev; in ipa_endpoint_data_valid()
217 if (!ipa_endpoint_data_valid_one(ipa, count, data, dp)) in ipa_endpoint_data_valid()
225 static bool ipa_endpoint_data_valid(struct ipa *ipa, u32 count, in ipa_endpoint_data_valid() argument
237 struct gsi *gsi = &endpoint->ipa->gsi; in ipa_endpoint_trans_alloc()
247 * Note that suspend is not supported starting with IPA v4.0.
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| D | ipa_clock.c | 13 #include "ipa.h"
18 * DOC: IPA Clocking
20 * The "IPA Clock" manages both the IPA core clock and the interconnects
21 * (buses) the IPA depends on as a single logical entity. A reference count
26 * all buses at a fixed average and peak bandwidth. As more advanced IPA
29 * An IPA clock reference must be held for any access to IPA hardware.
45 * struct ipa_clock - IPA clocking information
48 * @core: IPA core clock
75 /* Initialize interconnects required for IPA operation */
114 static int ipa_interconnect_enable(struct ipa *ipa) in ipa_interconnect_enable() argument
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| D | ipa_uc.c | 11 #include "ipa.h"
16 * DOC: The IPA embedded microcontroller
18 * The IPA incorporates a microcontroller that is able to do some additional
28 * A 128 byte block of structured memory within the IPA SRAM is used together
30 * AP and the IPA microcontroller. Each side writes data to the shared area
63 * A shared memory area at the base of IPA resident memory is used for
117 static struct ipa_uc_mem_area *ipa_uc_shared(struct ipa *ipa) in ipa_uc_shared() argument
119 u32 offset = ipa->mem_offset + ipa->mem[IPA_MEM_UC_SHARED].offset; in ipa_uc_shared()
121 return ipa->mem_virt + offset; in ipa_uc_shared()
124 /* Microcontroller event IPA interrupt handler */
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| D | ipa_smp2p.c | 15 #include "ipa.h"
20 * DOC: IPA SMP2P communication with the modem
23 * the modem. The IPA driver uses this for two purposes: to enable the modem
25 * state of the IPA clock in the event of a crash.
29 * latter case, the modem uses an SMP2P interrupt to tell the AP IPA driver
32 * The modem is also able to inquire about the current state of the IPA
37 * is set, and at that time records whether the AP has the IPA clock enabled.
44 * struct ipa_smp2p - IPA SMP2P information
45 * @ipa: IPA pointer
51 * @clock_query_irq: IPA interrupt triggered by modem for clock query
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| D | ipa_clock.h | 11 struct ipa;
14 * ipa_clock_rate() - Return the current IPA core clock rate
15 * @ipa: IPA structure
19 u32 ipa_clock_rate(struct ipa *ipa);
22 * ipa_clock_init() - Initialize IPA clocking
23 * @dev: IPA device
31 * @clock: IPA clock pointer
36 * ipa_clock_get() - Get an IPA clock reference
37 * @ipa: IPA pointer
41 void ipa_clock_get(struct ipa *ipa);
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| D | ipa_interrupt.h | 12 struct ipa;
16 * enum ipa_irq_id - IPA interrupt type
32 * typedef ipa_irq_handler_t - IPA interrupt handler function type
33 * @ipa: IPA pointer
37 * IPA interrupt type
39 typedef void (*ipa_irq_handler_t)(struct ipa *ipa, enum ipa_irq_id irq_id);
42 * ipa_interrupt_add() - Register a handler for an IPA interrupt type
43 * @irq_id: IPA interrupt type
46 * Add a handler for an IPA interrupt and enable it. IPA interrupt
54 * ipa_interrupt_remove() - Remove the handler for an IPA interrupt type
[all …]
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| D | ipa_qmi.c | 13 #include "ipa.h"
28 * complete, the AP and modem may begin IPA operation. This occurs
29 * only when the AP IPA driver, modem IPA driver, and IPA microcontroller
36 * contains a success result, the AP knows the modem IPA driver is ready.
38 * The modem is responsible for loading firmware on the IPA microcontroller.
53 * - Whenever the AP learns the modem has booted and its IPA QMI service
56 * - On the initial boot, the modem sets up the IPA microcontroller, and
86 struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi); in ipa_server_init_complete() local
99 dev_err(&ipa->pdev->dev, in ipa_server_init_complete()
118 * We know everything (else) is ready when we know the IPA driver on
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| D | ipa_smp2p.h | 11 struct ipa;
14 * ipa_smp2p_init() - Initialize the IPA SMP2P subsystem
15 * @ipa: IPA pointer
21 int ipa_smp2p_init(struct ipa *ipa, bool modem_init);
25 * @ipa: IPA pointer
27 void ipa_smp2p_exit(struct ipa *ipa);
30 * ipa_smp2p_disable() - Prevent "ipa-setup-ready" interrupt handling
31 * @IPA: IPA pointer
36 void ipa_smp2p_disable(struct ipa *ipa);
40 * @ipa: IPA pointer
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| D | ipa_cmd.h | 15 struct ipa;
21 * enum ipa_cmd_opcode: IPA immediate commands
24 * The numeric values here are the opcodes for IPA v3.5.1 hardware.
43 * struct ipa_cmd_info - information needed for an IPA immediate command
58 * @ipa: - IPA pointer
59 * @mem: - IPA memory region descriptor
66 bool ipa_cmd_table_valid(struct ipa *ipa, const struct ipa_mem *mem,
71 * @ipa: - IPA pointer
75 bool ipa_cmd_data_valid(struct ipa *ipa);
79 static inline bool ipa_cmd_table_valid(struct ipa *ipa, in ipa_cmd_table_valid() argument
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| D | ipa_mem.h | 9 struct ipa;
13 * DOC: IPA Local Memory
15 * The IPA has a block of shared memory, divided into regions used for
19 * the "ipa-shared" memory range) and size found in the IPA_SHARED_MEM_SIZE
25 * of canaries for all IPA hardware versions. Still, the number used is
43 /* IPA-resident memory region ids */
59 IPA_MEM_PDN_CONFIG, /* 2 canaries (IPA v4.0 and above) */
60 IPA_MEM_STATS_QUOTA, /* 2 canaries (IPA v4.0 and above) */
61 IPA_MEM_STATS_TETHERING, /* 0 canaries (IPA v4.0 and above) */
62 IPA_MEM_STATS_DROP, /* 0 canaries (IPA v4.0 and above) */
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| D | ipa_modem.h | 9 struct ipa;
14 int ipa_modem_start(struct ipa *ipa);
15 int ipa_modem_stop(struct ipa *ipa);
22 int ipa_modem_init(struct ipa *ipa, bool modem_init);
23 void ipa_modem_exit(struct ipa *ipa);
25 int ipa_modem_config(struct ipa *ipa);
26 void ipa_modem_deconfig(struct ipa *ipa);
28 int ipa_modem_setup(struct ipa *ipa);
29 void ipa_modem_teardown(struct ipa *ipa);
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| D | ipa.h | 31 * enum ipa_flag - IPA state flags
33 * @IPA_FLAG_COUNT: Number of defined IPA flags
41 * struct ipa - IPA information
44 * @version: IPA hardware version
48 * @clock: IPA clocking information
51 * @interrupt: IPA Interrupt information
53 * @reg_addr: DMA address used for IPA register access
54 * @reg_virt: Virtual address used for IPA register access
55 * @mem_addr: DMA address of IPA-local memory space
56 * @mem_virt: Virtual address of IPA-local memory space
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| D | ipa_gsi.c | 11 #include "ipa.h"
17 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_gsi_trans_complete() local
19 ipa_endpoint_trans_complete(ipa->channel_map[trans->channel_id], trans); in ipa_gsi_trans_complete()
24 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_gsi_trans_release() local
26 ipa_endpoint_trans_release(ipa->channel_map[trans->channel_id], trans); in ipa_gsi_trans_release()
32 struct ipa *ipa = container_of(gsi, struct ipa, gsi); in ipa_gsi_channel_tx_queued() local
35 endpoint = ipa->channel_map[channel_id]; in ipa_gsi_channel_tx_queued()
43 struct ipa *ipa = container_of(gsi, struct ipa, gsi); in ipa_gsi_channel_tx_completed() local
46 endpoint = ipa->channel_map[channel_id]; in ipa_gsi_channel_tx_completed()
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| D | ipa_reg.c | 9 #include "ipa.h"
12 int ipa_reg_init(struct ipa *ipa) in ipa_reg_init() argument
14 struct device *dev = &ipa->pdev->dev; in ipa_reg_init()
17 /* Setup IPA register memory */ in ipa_reg_init()
18 res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM, in ipa_reg_init()
19 "ipa-reg"); in ipa_reg_init()
21 dev_err(dev, "DT error getting \"ipa-reg\" memory property\n"); in ipa_reg_init()
25 ipa->reg_virt = ioremap(res->start, resource_size(res)); in ipa_reg_init()
26 if (!ipa->reg_virt) { in ipa_reg_init()
27 dev_err(dev, "unable to remap \"ipa-reg\" memory\n"); in ipa_reg_init()
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| D | ipa_uc.h | 9 struct ipa;
12 * ipa_uc_setup() - set up the IPA microcontroller subsystem
13 * @ipa: IPA pointer
15 void ipa_uc_setup(struct ipa *ipa);
19 * @ipa: IPA pointer
21 void ipa_uc_teardown(struct ipa *ipa);
25 * @ipa: IPA pointer
30 void ipa_uc_panic_notifier(struct ipa *ipa);
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| D | ipa_data.h | 16 * DOC: IPA/GSI Configuration Data
19 * IPA and GSI resources to use for a given platform. This data is supplied
24 * Resources are data structures used internally by the IPA hardware. The
28 * Endpoint configuration data defines properties of both IPA endpoints and
30 * communication path between the IPA and a particular execution environment
35 * An endpoint is an IPA construct representing a single channel anywhere
36 * in the system. An IPA endpoint ID maps directly to an (EE, channel_id)
39 * added. IPA endpoint and GSI channel configuration data are defined
43 * are common to IPA and GSI (EE ID, channel ID, endpoint ID, and direction);
45 * the IPA endpoint.
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| /Linux-v5.10/Documentation/devicetree/bindings/net/ |
| D | qcom,ipa.yaml | 4 $id: http://devicetree.org/schemas/net/qcom,ipa.yaml#
7 title: Qualcomm IP Accelerator (IPA)
13 This binding describes the Qualcomm IPA. The IPA is capable of offloading
17 The IPA sits between multiple independent "execution environments,"
18 including the Application Processor (AP) and the modem. The IPA presents
20 The GSI is an integral part of the IPA, but it is logically isolated
40 | IPA |
46 const: "qcom,sdm845-ipa"
50 - description: IPA registers
51 - description: IPA shared memory
[all …]
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