blob: 9d2f511f13fafad6f4c852f7866176c4da392f71 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +00001/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Synopsys DesignWare PCIe host controller driver
4 *
5 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
Olivier Deprez157378f2022-04-04 15:47:50 +02006 * https://www.samsung.com
Andrew Scullb4b6d4a2019-01-02 15:54:55 +00007 *
8 * Author: Jingoo Han <jg1.han@samsung.com>
9 */
10
11#ifndef _PCIE_DESIGNWARE_H
12#define _PCIE_DESIGNWARE_H
13
David Brazdil0f672f62019-12-10 10:32:29 +000014#include <linux/bitfield.h>
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000015#include <linux/dma-mapping.h>
16#include <linux/irq.h>
17#include <linux/msi.h>
18#include <linux/pci.h>
19
20#include <linux/pci-epc.h>
21#include <linux/pci-epf.h>
22
23/* Parameters for the waiting for link up routine */
24#define LINK_WAIT_MAX_RETRIES 10
25#define LINK_WAIT_USLEEP_MIN 90000
26#define LINK_WAIT_USLEEP_MAX 100000
27
28/* Parameters for the waiting for iATU enabled routine */
29#define LINK_WAIT_MAX_IATU_RETRIES 5
30#define LINK_WAIT_IATU 9
31
32/* Synopsys-specific PCIe configuration registers */
Olivier Deprez157378f2022-04-04 15:47:50 +020033#define PCIE_PORT_AFR 0x70C
34#define PORT_AFR_N_FTS_MASK GENMASK(15, 8)
35#define PORT_AFR_N_FTS(n) FIELD_PREP(PORT_AFR_N_FTS_MASK, n)
36#define PORT_AFR_CC_N_FTS_MASK GENMASK(23, 16)
37#define PORT_AFR_CC_N_FTS(n) FIELD_PREP(PORT_AFR_CC_N_FTS_MASK, n)
38#define PORT_AFR_ENTER_ASPM BIT(30)
39#define PORT_AFR_L0S_ENTRANCE_LAT_SHIFT 24
40#define PORT_AFR_L0S_ENTRANCE_LAT_MASK GENMASK(26, 24)
41#define PORT_AFR_L1_ENTRANCE_LAT_SHIFT 27
42#define PORT_AFR_L1_ENTRANCE_LAT_MASK GENMASK(29, 27)
43
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000044#define PCIE_PORT_LINK_CONTROL 0x710
Olivier Deprez157378f2022-04-04 15:47:50 +020045#define PORT_LINK_DLL_LINK_EN BIT(5)
46#define PORT_LINK_FAST_LINK_MODE BIT(7)
David Brazdil0f672f62019-12-10 10:32:29 +000047#define PORT_LINK_MODE_MASK GENMASK(21, 16)
48#define PORT_LINK_MODE(n) FIELD_PREP(PORT_LINK_MODE_MASK, n)
49#define PORT_LINK_MODE_1_LANES PORT_LINK_MODE(0x1)
50#define PORT_LINK_MODE_2_LANES PORT_LINK_MODE(0x3)
51#define PORT_LINK_MODE_4_LANES PORT_LINK_MODE(0x7)
52#define PORT_LINK_MODE_8_LANES PORT_LINK_MODE(0xf)
53
54#define PCIE_PORT_DEBUG0 0x728
55#define PORT_LOGIC_LTSSM_STATE_MASK 0x1f
56#define PORT_LOGIC_LTSSM_STATE_L0 0x11
57#define PCIE_PORT_DEBUG1 0x72C
58#define PCIE_PORT_DEBUG1_LINK_UP BIT(4)
59#define PCIE_PORT_DEBUG1_LINK_IN_TRAINING BIT(29)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000060
61#define PCIE_LINK_WIDTH_SPEED_CONTROL 0x80C
Olivier Deprez157378f2022-04-04 15:47:50 +020062#define PORT_LOGIC_N_FTS_MASK GENMASK(7, 0)
David Brazdil0f672f62019-12-10 10:32:29 +000063#define PORT_LOGIC_SPEED_CHANGE BIT(17)
64#define PORT_LOGIC_LINK_WIDTH_MASK GENMASK(12, 8)
65#define PORT_LOGIC_LINK_WIDTH(n) FIELD_PREP(PORT_LOGIC_LINK_WIDTH_MASK, n)
66#define PORT_LOGIC_LINK_WIDTH_1_LANES PORT_LOGIC_LINK_WIDTH(0x1)
67#define PORT_LOGIC_LINK_WIDTH_2_LANES PORT_LOGIC_LINK_WIDTH(0x2)
68#define PORT_LOGIC_LINK_WIDTH_4_LANES PORT_LOGIC_LINK_WIDTH(0x4)
69#define PORT_LOGIC_LINK_WIDTH_8_LANES PORT_LOGIC_LINK_WIDTH(0x8)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000070
71#define PCIE_MSI_ADDR_LO 0x820
72#define PCIE_MSI_ADDR_HI 0x824
73#define PCIE_MSI_INTR0_ENABLE 0x828
74#define PCIE_MSI_INTR0_MASK 0x82C
75#define PCIE_MSI_INTR0_STATUS 0x830
76
Olivier Deprez157378f2022-04-04 15:47:50 +020077#define PCIE_PORT_MULTI_LANE_CTRL 0x8C0
78#define PORT_MLTI_UPCFG_SUPPORT BIT(7)
79
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000080#define PCIE_ATU_VIEWPORT 0x900
David Brazdil0f672f62019-12-10 10:32:29 +000081#define PCIE_ATU_REGION_INBOUND BIT(31)
82#define PCIE_ATU_REGION_OUTBOUND 0
83#define PCIE_ATU_REGION_INDEX2 0x2
84#define PCIE_ATU_REGION_INDEX1 0x1
85#define PCIE_ATU_REGION_INDEX0 0x0
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000086#define PCIE_ATU_CR1 0x904
David Brazdil0f672f62019-12-10 10:32:29 +000087#define PCIE_ATU_TYPE_MEM 0x0
88#define PCIE_ATU_TYPE_IO 0x2
89#define PCIE_ATU_TYPE_CFG0 0x4
90#define PCIE_ATU_TYPE_CFG1 0x5
Olivier Deprez157378f2022-04-04 15:47:50 +020091#define PCIE_ATU_FUNC_NUM(pf) ((pf) << 20)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000092#define PCIE_ATU_CR2 0x908
David Brazdil0f672f62019-12-10 10:32:29 +000093#define PCIE_ATU_ENABLE BIT(31)
94#define PCIE_ATU_BAR_MODE_ENABLE BIT(30)
Olivier Deprez157378f2022-04-04 15:47:50 +020095#define PCIE_ATU_FUNC_NUM_MATCH_EN BIT(19)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +000096#define PCIE_ATU_LOWER_BASE 0x90C
97#define PCIE_ATU_UPPER_BASE 0x910
98#define PCIE_ATU_LIMIT 0x914
99#define PCIE_ATU_LOWER_TARGET 0x918
David Brazdil0f672f62019-12-10 10:32:29 +0000100#define PCIE_ATU_BUS(x) FIELD_PREP(GENMASK(31, 24), x)
101#define PCIE_ATU_DEV(x) FIELD_PREP(GENMASK(23, 19), x)
102#define PCIE_ATU_FUNC(x) FIELD_PREP(GENMASK(18, 16), x)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000103#define PCIE_ATU_UPPER_TARGET 0x91C
104
105#define PCIE_MISC_CONTROL_1_OFF 0x8BC
David Brazdil0f672f62019-12-10 10:32:29 +0000106#define PCIE_DBI_RO_WR_EN BIT(0)
107
Olivier Deprez157378f2022-04-04 15:47:50 +0200108#define PCIE_MSIX_DOORBELL 0x948
109#define PCIE_MSIX_DOORBELL_PF_SHIFT 24
110
David Brazdil0f672f62019-12-10 10:32:29 +0000111#define PCIE_PL_CHK_REG_CONTROL_STATUS 0xB20
112#define PCIE_PL_CHK_REG_CHK_REG_START BIT(0)
113#define PCIE_PL_CHK_REG_CHK_REG_CONTINUOUS BIT(1)
114#define PCIE_PL_CHK_REG_CHK_REG_COMPARISON_ERROR BIT(16)
115#define PCIE_PL_CHK_REG_CHK_REG_LOGIC_ERROR BIT(17)
116#define PCIE_PL_CHK_REG_CHK_REG_COMPLETE BIT(18)
117
118#define PCIE_PL_CHK_REG_ERR_ADDR 0xB28
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000119
120/*
121 * iATU Unroll-specific register definitions
122 * From 4.80 core version the address translation will be made by unroll
123 */
124#define PCIE_ATU_UNR_REGION_CTRL1 0x00
125#define PCIE_ATU_UNR_REGION_CTRL2 0x04
126#define PCIE_ATU_UNR_LOWER_BASE 0x08
127#define PCIE_ATU_UNR_UPPER_BASE 0x0C
Olivier Deprez157378f2022-04-04 15:47:50 +0200128#define PCIE_ATU_UNR_LOWER_LIMIT 0x10
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000129#define PCIE_ATU_UNR_LOWER_TARGET 0x14
130#define PCIE_ATU_UNR_UPPER_TARGET 0x18
Olivier Deprez157378f2022-04-04 15:47:50 +0200131#define PCIE_ATU_UNR_UPPER_LIMIT 0x20
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000132
David Brazdil0f672f62019-12-10 10:32:29 +0000133/*
134 * The default address offset between dbi_base and atu_base. Root controller
135 * drivers are not required to initialize atu_base if the offset matches this
136 * default; the driver core automatically derives atu_base from dbi_base using
137 * this offset, if atu_base not set.
138 */
139#define DEFAULT_DBI_ATU_OFFSET (0x3 << 20)
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000140
David Brazdil0f672f62019-12-10 10:32:29 +0000141/* Register address builder */
142#define PCIE_GET_ATU_OUTB_UNR_REG_OFFSET(region) \
143 ((region) << 9)
144
145#define PCIE_GET_ATU_INB_UNR_REG_OFFSET(region) \
146 (((region) << 9) | BIT(8))
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000147
148#define MAX_MSI_IRQS 256
149#define MAX_MSI_IRQS_PER_CTRL 32
150#define MAX_MSI_CTRLS (MAX_MSI_IRQS / MAX_MSI_IRQS_PER_CTRL)
151#define MSI_REG_CTRL_BLOCK_SIZE 12
152#define MSI_DEF_NUM_VECTORS 32
153
154/* Maximum number of inbound/outbound iATUs */
155#define MAX_IATU_IN 256
156#define MAX_IATU_OUT 256
157
158struct pcie_port;
159struct dw_pcie;
160struct dw_pcie_ep;
161
162enum dw_pcie_region_type {
163 DW_PCIE_REGION_UNKNOWN,
164 DW_PCIE_REGION_INBOUND,
165 DW_PCIE_REGION_OUTBOUND,
166};
167
168enum dw_pcie_device_mode {
169 DW_PCIE_UNKNOWN_TYPE,
170 DW_PCIE_EP_TYPE,
171 DW_PCIE_LEG_EP_TYPE,
172 DW_PCIE_RC_TYPE,
173};
174
175struct dw_pcie_host_ops {
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000176 int (*host_init)(struct pcie_port *pp);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000177 void (*set_num_vectors)(struct pcie_port *pp);
178 int (*msi_host_init)(struct pcie_port *pp);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000179};
180
181struct pcie_port {
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000182 u64 cfg0_base;
183 void __iomem *va_cfg0_base;
184 u32 cfg0_size;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000185 resource_size_t io_base;
186 phys_addr_t io_bus_addr;
187 u32 io_size;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000188 int irq;
189 const struct dw_pcie_host_ops *ops;
190 int msi_irq;
191 struct irq_domain *irq_domain;
192 struct irq_domain *msi_domain;
Olivier Deprez157378f2022-04-04 15:47:50 +0200193 u16 msi_msg;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000194 dma_addr_t msi_data;
David Brazdil0f672f62019-12-10 10:32:29 +0000195 struct irq_chip *msi_irq_chip;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000196 u32 num_vectors;
David Brazdil0f672f62019-12-10 10:32:29 +0000197 u32 irq_mask[MAX_MSI_CTRLS];
Olivier Deprez157378f2022-04-04 15:47:50 +0200198 struct pci_host_bridge *bridge;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000199 raw_spinlock_t lock;
200 DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
201};
202
203enum dw_pcie_as_type {
204 DW_PCIE_AS_UNKNOWN,
205 DW_PCIE_AS_MEM,
206 DW_PCIE_AS_IO,
207};
208
209struct dw_pcie_ep_ops {
210 void (*ep_init)(struct dw_pcie_ep *ep);
211 int (*raise_irq)(struct dw_pcie_ep *ep, u8 func_no,
212 enum pci_epc_irq_type type, u16 interrupt_num);
David Brazdil0f672f62019-12-10 10:32:29 +0000213 const struct pci_epc_features* (*get_features)(struct dw_pcie_ep *ep);
Olivier Deprez157378f2022-04-04 15:47:50 +0200214 /*
215 * Provide a method to implement the different func config space
216 * access for different platform, if different func have different
217 * offset, return the offset of func. if use write a register way
218 * return a 0, and implement code in callback function of platform
219 * driver.
220 */
221 unsigned int (*func_conf_select)(struct dw_pcie_ep *ep, u8 func_no);
222};
223
224struct dw_pcie_ep_func {
225 struct list_head list;
226 u8 func_no;
227 u8 msi_cap; /* MSI capability offset */
228 u8 msix_cap; /* MSI-X capability offset */
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000229};
230
231struct dw_pcie_ep {
232 struct pci_epc *epc;
Olivier Deprez157378f2022-04-04 15:47:50 +0200233 struct list_head func_list;
David Brazdil0f672f62019-12-10 10:32:29 +0000234 const struct dw_pcie_ep_ops *ops;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000235 phys_addr_t phys_base;
236 size_t addr_size;
237 size_t page_size;
Olivier Deprez157378f2022-04-04 15:47:50 +0200238 u8 bar_to_atu[PCI_STD_NUM_BARS];
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000239 phys_addr_t *outbound_addr;
240 unsigned long *ib_window_map;
241 unsigned long *ob_window_map;
242 u32 num_ib_windows;
243 u32 num_ob_windows;
244 void __iomem *msi_mem;
245 phys_addr_t msi_mem_phys;
Olivier Deprez157378f2022-04-04 15:47:50 +0200246 struct pci_epf_bar *epf_bar[PCI_STD_NUM_BARS];
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000247};
248
249struct dw_pcie_ops {
250 u64 (*cpu_addr_fixup)(struct dw_pcie *pcie, u64 cpu_addr);
251 u32 (*read_dbi)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
252 size_t size);
253 void (*write_dbi)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
254 size_t size, u32 val);
David Brazdil0f672f62019-12-10 10:32:29 +0000255 void (*write_dbi2)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
256 size_t size, u32 val);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000257 int (*link_up)(struct dw_pcie *pcie);
258 int (*start_link)(struct dw_pcie *pcie);
259 void (*stop_link)(struct dw_pcie *pcie);
260};
261
262struct dw_pcie {
263 struct device *dev;
264 void __iomem *dbi_base;
265 void __iomem *dbi_base2;
David Brazdil0f672f62019-12-10 10:32:29 +0000266 /* Used when iatu_unroll_enabled is true */
267 void __iomem *atu_base;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000268 u32 num_viewport;
269 u8 iatu_unroll_enabled;
270 struct pcie_port pp;
271 struct dw_pcie_ep ep;
272 const struct dw_pcie_ops *ops;
David Brazdil0f672f62019-12-10 10:32:29 +0000273 unsigned int version;
Olivier Deprez157378f2022-04-04 15:47:50 +0200274 int num_lanes;
275 int link_gen;
276 u8 n_fts[2];
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000277};
278
279#define to_dw_pcie_from_pp(port) container_of((port), struct dw_pcie, pp)
280
281#define to_dw_pcie_from_ep(endpoint) \
282 container_of((endpoint), struct dw_pcie, ep)
283
David Brazdil0f672f62019-12-10 10:32:29 +0000284u8 dw_pcie_find_capability(struct dw_pcie *pci, u8 cap);
285u16 dw_pcie_find_ext_capability(struct dw_pcie *pci, u8 cap);
286
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000287int dw_pcie_read(void __iomem *addr, int size, u32 *val);
288int dw_pcie_write(void __iomem *addr, int size, u32 val);
289
David Brazdil0f672f62019-12-10 10:32:29 +0000290u32 dw_pcie_read_dbi(struct dw_pcie *pci, u32 reg, size_t size);
291void dw_pcie_write_dbi(struct dw_pcie *pci, u32 reg, size_t size, u32 val);
David Brazdil0f672f62019-12-10 10:32:29 +0000292void dw_pcie_write_dbi2(struct dw_pcie *pci, u32 reg, size_t size, u32 val);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000293int dw_pcie_link_up(struct dw_pcie *pci);
Olivier Deprez157378f2022-04-04 15:47:50 +0200294void dw_pcie_upconfig_setup(struct dw_pcie *pci);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000295int dw_pcie_wait_for_link(struct dw_pcie *pci);
296void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index,
297 int type, u64 cpu_addr, u64 pci_addr,
298 u32 size);
Olivier Deprez157378f2022-04-04 15:47:50 +0200299void dw_pcie_prog_ep_outbound_atu(struct dw_pcie *pci, u8 func_no, int index,
300 int type, u64 cpu_addr, u64 pci_addr,
301 u32 size);
302int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, u8 func_no, int index,
303 int bar, u64 cpu_addr,
304 enum dw_pcie_as_type as_type);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000305void dw_pcie_disable_atu(struct dw_pcie *pci, int index,
306 enum dw_pcie_region_type type);
307void dw_pcie_setup(struct dw_pcie *pci);
308
309static inline void dw_pcie_writel_dbi(struct dw_pcie *pci, u32 reg, u32 val)
310{
David Brazdil0f672f62019-12-10 10:32:29 +0000311 dw_pcie_write_dbi(pci, reg, 0x4, val);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000312}
313
314static inline u32 dw_pcie_readl_dbi(struct dw_pcie *pci, u32 reg)
315{
David Brazdil0f672f62019-12-10 10:32:29 +0000316 return dw_pcie_read_dbi(pci, reg, 0x4);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000317}
318
319static inline void dw_pcie_writew_dbi(struct dw_pcie *pci, u32 reg, u16 val)
320{
David Brazdil0f672f62019-12-10 10:32:29 +0000321 dw_pcie_write_dbi(pci, reg, 0x2, val);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000322}
323
324static inline u16 dw_pcie_readw_dbi(struct dw_pcie *pci, u32 reg)
325{
David Brazdil0f672f62019-12-10 10:32:29 +0000326 return dw_pcie_read_dbi(pci, reg, 0x2);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000327}
328
329static inline void dw_pcie_writeb_dbi(struct dw_pcie *pci, u32 reg, u8 val)
330{
David Brazdil0f672f62019-12-10 10:32:29 +0000331 dw_pcie_write_dbi(pci, reg, 0x1, val);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000332}
333
334static inline u8 dw_pcie_readb_dbi(struct dw_pcie *pci, u32 reg)
335{
David Brazdil0f672f62019-12-10 10:32:29 +0000336 return dw_pcie_read_dbi(pci, reg, 0x1);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000337}
338
339static inline void dw_pcie_writel_dbi2(struct dw_pcie *pci, u32 reg, u32 val)
340{
David Brazdil0f672f62019-12-10 10:32:29 +0000341 dw_pcie_write_dbi2(pci, reg, 0x4, val);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000342}
343
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000344static inline void dw_pcie_dbi_ro_wr_en(struct dw_pcie *pci)
345{
346 u32 reg;
347 u32 val;
348
349 reg = PCIE_MISC_CONTROL_1_OFF;
350 val = dw_pcie_readl_dbi(pci, reg);
351 val |= PCIE_DBI_RO_WR_EN;
352 dw_pcie_writel_dbi(pci, reg, val);
353}
354
355static inline void dw_pcie_dbi_ro_wr_dis(struct dw_pcie *pci)
356{
357 u32 reg;
358 u32 val;
359
360 reg = PCIE_MISC_CONTROL_1_OFF;
361 val = dw_pcie_readl_dbi(pci, reg);
362 val &= ~PCIE_DBI_RO_WR_EN;
363 dw_pcie_writel_dbi(pci, reg, val);
364}
365
366#ifdef CONFIG_PCIE_DW_HOST
367irqreturn_t dw_handle_msi_irq(struct pcie_port *pp);
368void dw_pcie_msi_init(struct pcie_port *pp);
369void dw_pcie_free_msi(struct pcie_port *pp);
370void dw_pcie_setup_rc(struct pcie_port *pp);
371int dw_pcie_host_init(struct pcie_port *pp);
David Brazdil0f672f62019-12-10 10:32:29 +0000372void dw_pcie_host_deinit(struct pcie_port *pp);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000373int dw_pcie_allocate_domains(struct pcie_port *pp);
Olivier Deprez157378f2022-04-04 15:47:50 +0200374void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus, unsigned int devfn,
375 int where);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000376#else
377static inline irqreturn_t dw_handle_msi_irq(struct pcie_port *pp)
378{
379 return IRQ_NONE;
380}
381
382static inline void dw_pcie_msi_init(struct pcie_port *pp)
383{
384}
385
386static inline void dw_pcie_free_msi(struct pcie_port *pp)
387{
388}
389
390static inline void dw_pcie_setup_rc(struct pcie_port *pp)
391{
392}
393
394static inline int dw_pcie_host_init(struct pcie_port *pp)
395{
396 return 0;
397}
398
David Brazdil0f672f62019-12-10 10:32:29 +0000399static inline void dw_pcie_host_deinit(struct pcie_port *pp)
400{
401}
402
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000403static inline int dw_pcie_allocate_domains(struct pcie_port *pp)
404{
405 return 0;
406}
Olivier Deprez157378f2022-04-04 15:47:50 +0200407static inline void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus,
408 unsigned int devfn,
409 int where)
410{
411 return NULL;
412}
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000413#endif
414
415#ifdef CONFIG_PCIE_DW_EP
416void dw_pcie_ep_linkup(struct dw_pcie_ep *ep);
417int dw_pcie_ep_init(struct dw_pcie_ep *ep);
Olivier Deprez157378f2022-04-04 15:47:50 +0200418int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep);
419void dw_pcie_ep_init_notify(struct dw_pcie_ep *ep);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000420void dw_pcie_ep_exit(struct dw_pcie_ep *ep);
421int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no);
422int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
423 u8 interrupt_num);
424int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
425 u16 interrupt_num);
Olivier Deprez157378f2022-04-04 15:47:50 +0200426int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep, u8 func_no,
427 u16 interrupt_num);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000428void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar);
Olivier Deprez157378f2022-04-04 15:47:50 +0200429struct dw_pcie_ep_func *
430dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000431#else
432static inline void dw_pcie_ep_linkup(struct dw_pcie_ep *ep)
433{
434}
435
436static inline int dw_pcie_ep_init(struct dw_pcie_ep *ep)
437{
438 return 0;
439}
440
Olivier Deprez157378f2022-04-04 15:47:50 +0200441static inline int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep)
442{
443 return 0;
444}
445
446static inline void dw_pcie_ep_init_notify(struct dw_pcie_ep *ep)
447{
448}
449
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000450static inline void dw_pcie_ep_exit(struct dw_pcie_ep *ep)
451{
452}
453
454static inline int dw_pcie_ep_raise_legacy_irq(struct dw_pcie_ep *ep, u8 func_no)
455{
456 return 0;
457}
458
459static inline int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
460 u8 interrupt_num)
461{
462 return 0;
463}
464
465static inline int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
466 u16 interrupt_num)
467{
468 return 0;
469}
470
Olivier Deprez157378f2022-04-04 15:47:50 +0200471static inline int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep,
472 u8 func_no,
473 u16 interrupt_num)
474{
475 return 0;
476}
477
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000478static inline void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar)
479{
480}
Olivier Deprez157378f2022-04-04 15:47:50 +0200481
482static inline struct dw_pcie_ep_func *
483dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no)
484{
485 return NULL;
486}
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000487#endif
488#endif /* _PCIE_DESIGNWARE_H */