| /kernel/linux/linux-6.6/drivers/net/ipa/ |
| D | gsi.c | 18 #include "gsi.h"
30 * The generic software interface (GSI) is an integral component of the IPA,
32 * and the IPA core. The modem uses the GSI layer as well.
42 * | GSI |
53 * Each EE uses a set of unidirectional GSI "channels," which allow transfer
65 * Each channel has a GSI "event ring" associated with it. An event ring
69 * The GSI then writes its doorbell for the event ring, causing the target
85 * Note that all GSI registers are little-endian, which is the assumed
171 return channel - &channel->gsi->channel[0]; in gsi_channel_id()
174 /* An initialized channel has a non-null GSI pointer */
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| D | gsi.h | 29 struct gsi;
104 struct gsi *gsi; member
140 struct gsi { struct
151 u32 type_enabled_bitmap; /* GSI IRQ types enabled */
154 struct completion completion; /* Signals GSI command completion */
162 * gsi_setup() - Set up the GSI subsystem
163 * @gsi: Address of GSI structure embedded in an IPA structure argument
167 * Performs initialization that must wait until the GSI hardware is
170 int gsi_setup(struct gsi *gsi);
173 * gsi_teardown() - Tear down GSI subsystem
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| D | gsi_reg.c | 8 #include "gsi.h"
12 /* Is this register ID valid for the current GSI version? */
13 static bool gsi_reg_id_valid(struct gsi *gsi, enum gsi_reg_id reg_id) in gsi_reg_id_valid() argument
18 return gsi->version >= IPA_VERSION_3_5; in gsi_reg_id_valid()
21 return gsi->version >= IPA_VERSION_3_5_1; in gsi_reg_id_valid()
24 return gsi->version >= IPA_VERSION_5_0; in gsi_reg_id_valid()
82 const struct reg *gsi_reg(struct gsi *gsi, enum gsi_reg_id reg_id) in gsi_reg() argument
84 if (WARN(!gsi_reg_id_valid(gsi, reg_id), "invalid reg %u\n", reg_id)) in gsi_reg()
87 return reg(gsi->regs, reg_id); in gsi_reg()
90 static const struct regs *gsi_regs(struct gsi *gsi) in gsi_regs() argument
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| D | ipa_gsi.h | 11 struct gsi;
16 * ipa_gsi_trans_complete() - GSI transaction completion callback
19 * This called from the GSI layer to notify the IPA layer that a
25 * ipa_gsi_trans_release() - GSI transaction release callback
28 * This called from the GSI layer to notify the IPA layer that a
35 * ipa_gsi_channel_tx_queued() - GSI queued to hardware notification
36 * @gsi: GSI pointer
41 * This called from the GSI layer to notify the IPA layer that some
44 void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count,
48 * ipa_gsi_channel_tx_completed() - GSI transaction completion callback
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| D | gsi_trans.h | 21 struct gsi;
29 * struct gsi_trans - a GSI transaction
32 * @gsi: GSI pointer
52 struct gsi *gsi; member
77 * @pool: GSI transaction pool pointer
137 * @gsi: GSI pointer
143 bool gsi_channel_trans_idle(struct gsi *gsi, u32 channel_id);
146 * gsi_channel_trans_alloc() - Allocate a GSI transaction on a channel
147 * @gsi: GSI pointer
152 * Return: A GSI transaction structure, or a null pointer if all
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| D | ipa_version.h | 11 * @IPA_VERSION_3_0: IPA version 3.0/GSI version 1.0
12 * @IPA_VERSION_3_1: IPA version 3.1/GSI version 1.0
13 * @IPA_VERSION_3_5: IPA version 3.5/GSI version 1.2
14 * @IPA_VERSION_3_5_1: IPA version 3.5.1/GSI version 1.3
15 * @IPA_VERSION_4_0: IPA version 4.0/GSI version 2.0
16 * @IPA_VERSION_4_1: IPA version 4.1/GSI version 2.0
17 * @IPA_VERSION_4_2: IPA version 4.2/GSI version 2.2
18 * @IPA_VERSION_4_5: IPA version 4.5/GSI version 2.5
19 * @IPA_VERSION_4_7: IPA version 4.7/GSI version 2.7
20 * @IPA_VERSION_4_9: IPA version 4.9/GSI version 2.9
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| D | gsi_reg.h | 9 /* === Only "gsi.c" and "gsi_reg.c" should include this file === */
15 struct gsi;
18 * DOC: GSI Registers
20 * GSI registers are located within the "gsi" address space defined by Device
22 * symbols defined below. The GSI address space is mapped to virtual memory
23 * space in gsi_init(). All GSI registers are 32 bits wide.
26 * For example, each GSI channel has its own set of registers defining its
45 /* enum gsi_reg_id - GSI register IDs */
262 * enum gsi_irq_type_id: GSI IRQ types
282 /** enum gsi_global_irq_id: Global GSI interrupt events */
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| D | ipa_gsi.c | 17 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_gsi_trans_complete()
24 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_gsi_trans_release()
29 void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count, in ipa_gsi_channel_tx_queued() argument
32 struct ipa *ipa = container_of(gsi, struct ipa, gsi); in ipa_gsi_channel_tx_queued()
40 void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count, in ipa_gsi_channel_tx_completed() argument
43 struct ipa *ipa = container_of(gsi, struct ipa, gsi); in ipa_gsi_channel_tx_completed()
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| D | gsi_trans.c | 14 #include "gsi.h"
22 * DOC: GSI Transactions
24 * A GSI transaction abstracts the behavior of a GSI channel by representing
27 * command.) Most details of interaction with the GSI hardware are managed
28 * by the GSI transaction core, allowing users to simply describe operations
33 * To perform an operation (or set of them), a user of the GSI transaction
52 * transaction to the GSI transaction core. The GSI transaction code
57 * GSI hardware has completed it. Because transfers described by TREs are
63 * GSI code into the IPA layer, allowing it to perform any final cleanup
221 struct gsi_channel *channel = &trans->gsi->channel[trans->channel_id]; in gsi_trans_map()
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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
30 * GSI channels. A channel is a GSI construct, and represents a single
34 * the only GSI channels of concern to this driver belong to the AP.
40 * added. IPA endpoint and GSI channel configuration data are defined
44 * are common to IPA and GSI (EE ID, channel ID, endpoint ID, and direction);
45 * properties associated with the GSI channel; and properties associated with
71 * struct gsi_channel_data - GSI channel configuration data
76 * A GSI channel is a unidirectional means of transferring data to or
77 * from (and through) the IPA. A GSI channel has a ring buffer made
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| /kernel/linux/linux-5.10/drivers/infiniband/hw/mlx5/ |
| D | gsi.c | 46 /* Call with gsi->lock locked */
49 struct mlx5_ib_gsi_qp *gsi = &mqp->gsi; in generate_completions() local
54 for (index = gsi->outstanding_ci; index != gsi->outstanding_pi; in generate_completions()
56 wr = &gsi->outstanding_wrs[index % gsi->cap.max_send_wr]; in generate_completions()
65 gsi->outstanding_ci = index; in generate_completions()
70 struct mlx5_ib_gsi_qp *gsi = cq->cq_context; in handle_single_completion() local
73 struct mlx5_ib_qp *mqp = container_of(gsi, struct mlx5_ib_qp, gsi); in handle_single_completion()
77 spin_lock_irqsave(&gsi->lock, flags); in handle_single_completion()
85 spin_unlock_irqrestore(&gsi->lock, flags); in handle_single_completion()
92 struct mlx5_ib_gsi_qp *gsi; in mlx5_ib_create_gsi() local
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| /kernel/linux/linux-6.6/drivers/infiniband/hw/mlx5/ |
| D | gsi.c | 46 /* Call with gsi->lock locked */
49 struct mlx5_ib_gsi_qp *gsi = &mqp->gsi; in generate_completions() local
54 for (index = gsi->outstanding_ci; index != gsi->outstanding_pi; in generate_completions()
56 wr = &gsi->outstanding_wrs[index % gsi->cap.max_send_wr]; in generate_completions()
65 gsi->outstanding_ci = index; in generate_completions()
70 struct mlx5_ib_gsi_qp *gsi = cq->cq_context; in handle_single_completion() local
73 struct mlx5_ib_qp *mqp = container_of(gsi, struct mlx5_ib_qp, gsi); in handle_single_completion()
77 spin_lock_irqsave(&gsi->lock, flags); in handle_single_completion()
85 spin_unlock_irqrestore(&gsi->lock, flags); in handle_single_completion()
92 struct mlx5_ib_gsi_qp *gsi; in mlx5_ib_create_gsi() local
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| /kernel/linux/linux-5.10/drivers/net/ipa/ |
| D | gsi.c | 18 #include "gsi.h"
28 * The generic software interface (GSI) is an integral component of the IPA,
30 * and the IPA core. The modem uses the GSI layer as well.
40 * | GSI |
51 * Each EE uses a set of unidirectional GSI "channels," which allow transfer
63 * Each channel has a GSI "event ring" associated with it. An event ring
67 * The GSI then writes its doorbell for the event ring, causing the target
83 * Note that all GSI registers are little-endian, which is the assumed
229 return channel - &channel->gsi->channel[0]; in gsi_channel_id()
232 static void gsi_irq_ieob_enable(struct gsi *gsi, u32 evt_ring_id) in gsi_irq_ieob_enable() argument
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| D | gsi.h | 27 struct gsi;
107 struct gsi *gsi; member
148 struct gsi { struct
165 * gsi_setup() - Set up the GSI subsystem
166 * @gsi: Address of GSI structure embedded in an IPA structure argument
171 * Performs initialization that must wait until the GSI hardware is
174 int gsi_setup(struct gsi *gsi, bool legacy);
177 * gsi_teardown() - Tear down GSI subsystem
178 * @gsi: GSI address previously passed to a successful gsi_setup() call
180 void gsi_teardown(struct gsi *gsi);
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| D | ipa_gsi.h | 11 struct gsi;
16 * ipa_gsi_trans_complete() - GSI transaction completion callback
19 * This called from the GSI layer to notify the IPA layer that a
25 * ipa_gsi_trans_release() - GSI transaction release callback
28 * This called from the GSI layer to notify the IPA layer that a
35 * ipa_gsi_channel_tx_queued() - GSI queued to hardware notification
36 * @gsi: GSI pointer
41 * This called from the GSI layer to notify the IPA layer that some
44 void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count,
48 * ipa_gsi_channel_tx_completed() - GSI transaction completion callback
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| D | gsi_trans.h | 20 struct gsi;
25 * struct gsi_trans - a GSI transaction
29 * @gsi: GSI pointer
50 struct gsi *gsi; member
73 * @gsi: GSI pointer
131 * gsi_channel_trans_alloc() - Allocate a GSI transaction on a channel
132 * @gsi: GSI pointer
137 * Return: A GSI transaction structure, or a null pointer if all
140 struct gsi_trans *gsi_channel_trans_alloc(struct gsi *gsi, u32 channel_id,
145 * gsi_trans_free() - Free a previously-allocated GSI transaction
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| D | ipa_gsi.c | 17 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_gsi_trans_complete()
24 struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); in ipa_gsi_trans_release()
29 void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count, in ipa_gsi_channel_tx_queued() argument
32 struct ipa *ipa = container_of(gsi, struct ipa, gsi); in ipa_gsi_channel_tx_queued()
40 void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count, in ipa_gsi_channel_tx_completed() argument
43 struct ipa *ipa = container_of(gsi, struct ipa, gsi); in ipa_gsi_channel_tx_completed()
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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
29 * GSI channels. A channel is a GSI construct, and represents a single
33 * the only GSI channels of concern to this driver belong to the AP
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);
44 * properties associated with the GSI channel; and properties associated with
53 * struct gsi_channel_data - GSI channel configuration data
58 * A GSI channel is a unidirectional means of transferring data to or
59 * from (and through) the IPA. A GSI channel has a ring buffer made
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| /kernel/linux/linux-6.6/drivers/acpi/ |
| D | irq.c | 3 * ACPI GSI IRQ layer
15 static struct fwnode_handle *(*acpi_get_gsi_domain_id)(u32 gsi);
16 static u32 (*acpi_gsi_to_irq_fallback)(u32 gsi);
19 * acpi_gsi_to_irq() - Retrieve the linux irq number for a given GSI
20 * @gsi: GSI IRQ number to map
28 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) in acpi_gsi_to_irq() argument
32 d = irq_find_matching_fwnode(acpi_get_gsi_domain_id(gsi), in acpi_gsi_to_irq()
34 *irq = irq_find_mapping(d, gsi); in acpi_gsi_to_irq()
40 *irq = acpi_gsi_to_irq_fallback(gsi); in acpi_gsi_to_irq()
47 * acpi_register_gsi() - Map a GSI to a linux IRQ number
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/net/ |
| D | qcom,ipa.yaml | 19 a Generic Software Interface (GSI) to each execution environment.
20 The GSI is an integral part of the IPA, but it is logically isolated
37 | GSI |
60 - description: GSI registers
66 - const: gsi
81 - description: GSI interrupt (hardware IRQ)
88 - const: gsi
129 qcom,gsi-loader:
135 Indicates how GSI firmware should be loaded. If the AP loads
136 and validates GSI firmware, this property has value "self".
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| /kernel/linux/linux-5.10/drivers/acpi/ |
| D | irq.c | 3 * ACPI GSI IRQ layer
18 * acpi_gsi_to_irq() - Retrieve the linux irq number for a given GSI
19 * @gsi: GSI IRQ number to map
27 int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) in acpi_gsi_to_irq() argument
32 *irq = irq_find_mapping(d, gsi); in acpi_gsi_to_irq()
42 * acpi_register_gsi() - Map a GSI to a linux IRQ number
44 * @gsi: GSI IRQ number
45 * @trigger: trigger type of the GSI number to be mapped
46 * @polarity: polarity of the GSI to be mapped
51 int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, in acpi_register_gsi() argument
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| /kernel/linux/linux-6.6/arch/x86/pci/ |
| D | xen.c | 4 * initial domain support. We also handle the DSDT _PRT callbacks for GSI's
38 u8 gsi; in xen_pcifront_enable_irq() local
40 rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi); in xen_pcifront_enable_irq()
47 pirq = gsi; in xen_pcifront_enable_irq()
49 if (gsi < nr_legacy_irqs()) in xen_pcifront_enable_irq()
52 rc = xen_bind_pirq_gsi_to_irq(gsi, pirq, share, "pcifront"); in xen_pcifront_enable_irq()
54 dev_warn(&dev->dev, "Xen PCI: failed to bind GSI%d (PIRQ%d) to IRQ: %d\n", in xen_pcifront_enable_irq()
55 gsi, pirq, rc); in xen_pcifront_enable_irq()
60 dev_info(&dev->dev, "Xen PCI mapped GSI%d to IRQ%d\n", gsi, dev->irq); in xen_pcifront_enable_irq()
65 static int xen_register_pirq(u32 gsi, int triggering, bool set_pirq) in xen_register_pirq() argument
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| /kernel/linux/linux-6.6/arch/ia64/kernel/ |
| D | iosapic.c | 58 * Each interrupt line has a unique Global System Interrupt (GSI) number
59 * which can be calculated as the sum of the controller's base GSI number
74 * PCI pin -> global system interrupt (GSI) -> IA-64 vector <-> IRQ
119 unsigned int gsi_base; /* GSI base */
161 * Find an IOSAPIC associated with a GSI
164 find_iosapic (unsigned int gsi) in find_iosapic() argument
169 if ((unsigned) (gsi - iosapic_lists[i].gsi_base) < in find_iosapic()
177 static inline int __gsi_to_irq(unsigned int gsi) in __gsi_to_irq() argument
186 if (rte->iosapic->gsi_base + rte->rte_index == gsi) in __gsi_to_irq()
193 gsi_to_irq (unsigned int gsi) in gsi_to_irq() argument
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| /kernel/linux/linux-5.10/arch/ia64/kernel/ |
| D | iosapic.c | 58 * Each interrupt line has a unique Global System Interrupt (GSI) number
59 * which can be calculated as the sum of the controller's base GSI number
74 * PCI pin -> global system interrupt (GSI) -> IA-64 vector <-> IRQ
119 unsigned int gsi_base; /* GSI base */
161 * Find an IOSAPIC associated with a GSI
164 find_iosapic (unsigned int gsi) in find_iosapic() argument
169 if ((unsigned) (gsi - iosapic_lists[i].gsi_base) < in find_iosapic()
177 static inline int __gsi_to_irq(unsigned int gsi) in __gsi_to_irq() argument
186 if (rte->iosapic->gsi_base + rte->rte_index == gsi) in __gsi_to_irq()
193 gsi_to_irq (unsigned int gsi) in gsi_to_irq() argument
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| /kernel/linux/linux-5.10/arch/x86/pci/ |
| D | xen.c | 4 * initial domain support. We also handle the DSDT _PRT callbacks for GSI's
37 u8 gsi; in xen_pcifront_enable_irq() local
39 rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi); in xen_pcifront_enable_irq()
46 pirq = gsi; in xen_pcifront_enable_irq()
48 if (gsi < nr_legacy_irqs()) in xen_pcifront_enable_irq()
51 rc = xen_bind_pirq_gsi_to_irq(gsi, pirq, share, "pcifront"); in xen_pcifront_enable_irq()
53 dev_warn(&dev->dev, "Xen PCI: failed to bind GSI%d (PIRQ%d) to IRQ: %d\n", in xen_pcifront_enable_irq()
54 gsi, pirq, rc); in xen_pcifront_enable_irq()
59 dev_info(&dev->dev, "Xen PCI mapped GSI%d to IRQ%d\n", gsi, dev->irq); in xen_pcifront_enable_irq()
64 static int xen_register_pirq(u32 gsi, int triggering, bool set_pirq) in xen_register_pirq() argument
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