1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
3 * Copyright 2011-2016 Freescale Semiconductor Inc.
10 #include <sys/ioctl.h>
16 /* As higher-level drivers will be built on top of this (dma_mem, qbman, ...),
17 * it's preferable that the process driver itself not provide any exported API.
18 * As such, combined with the fact that none of these operations are
19 * performance critical, it is justified to use lazy initialisation, so that's
20 * what the lock is for.
23 static pthread_mutex_t fd_init_lock = PTHREAD_MUTEX_INITIALIZER;
25 static int check_fd(void)
31 ret = pthread_mutex_lock(&fd_init_lock);
33 /* check again with the lock held */
35 fd = open(PROCESS_PATH, O_RDWR);
36 ret = pthread_mutex_unlock(&fd_init_lock);
38 return (fd >= 0) ? 0 : -ENODEV;
41 #define DPAA_IOCTL_MAGIC 'u'
42 struct dpaa_ioctl_id_alloc {
43 uint32_t base; /* Return value, the start of the allocated range */
44 enum dpaa_id_type id_type; /* what kind of resource(s) to allocate */
45 uint32_t num; /* how many IDs to allocate (and return value) */
46 uint32_t align; /* must be a power of 2, 0 is treated like 1 */
47 int partial; /* whether to allow less than 'num' */
50 struct dpaa_ioctl_id_release {
52 enum dpaa_id_type id_type;
57 struct dpaa_ioctl_id_reserve {
58 enum dpaa_id_type id_type;
63 #define DPAA_IOCTL_ID_ALLOC \
64 _IOWR(DPAA_IOCTL_MAGIC, 0x01, struct dpaa_ioctl_id_alloc)
65 #define DPAA_IOCTL_ID_RELEASE \
66 _IOW(DPAA_IOCTL_MAGIC, 0x02, struct dpaa_ioctl_id_release)
67 #define DPAA_IOCTL_ID_RESERVE \
68 _IOW(DPAA_IOCTL_MAGIC, 0x0A, struct dpaa_ioctl_id_reserve)
70 int process_alloc(enum dpaa_id_type id_type, uint32_t *base, uint32_t num,
71 uint32_t align, int partial)
73 struct dpaa_ioctl_id_alloc id = {
83 ret = ioctl(fd, DPAA_IOCTL_ID_ALLOC, &id);
86 for (ret = 0; ret < (int)id.num; ret++)
87 base[ret] = id.base + ret;
91 void process_release(enum dpaa_id_type id_type, uint32_t base, uint32_t num)
93 struct dpaa_ioctl_id_release id = {
101 fprintf(stderr, "Process FD failure\n");
104 ret = ioctl(fd, DPAA_IOCTL_ID_RELEASE, &id);
106 fprintf(stderr, "Process FD ioctl failure type %d base 0x%x num %d\n",
110 int process_reserve(enum dpaa_id_type id_type, uint32_t base, uint32_t num)
112 struct dpaa_ioctl_id_reserve id = {
117 int ret = check_fd();
121 return ioctl(fd, DPAA_IOCTL_ID_RESERVE, &id);
124 /***************************************/
125 /* Mapping and using QMan/BMan portals */
126 /***************************************/
128 #define DPAA_IOCTL_PORTAL_MAP \
129 _IOWR(DPAA_IOCTL_MAGIC, 0x07, struct dpaa_ioctl_portal_map)
130 #define DPAA_IOCTL_PORTAL_UNMAP \
131 _IOW(DPAA_IOCTL_MAGIC, 0x08, struct dpaa_portal_map)
133 int process_portal_map(struct dpaa_ioctl_portal_map *params)
135 int ret = check_fd();
140 ret = ioctl(fd, DPAA_IOCTL_PORTAL_MAP, params);
142 perror("ioctl(DPAA_IOCTL_PORTAL_MAP)");
148 int process_portal_unmap(struct dpaa_portal_map *map)
150 int ret = check_fd();
155 ret = ioctl(fd, DPAA_IOCTL_PORTAL_UNMAP, map);
157 perror("ioctl(DPAA_IOCTL_PORTAL_UNMAP)");
163 #define DPAA_IOCTL_PORTAL_IRQ_MAP \
164 _IOW(DPAA_IOCTL_MAGIC, 0x09, struct dpaa_ioctl_irq_map)
166 int process_portal_irq_map(int ifd, struct dpaa_ioctl_irq_map *map)
169 return ioctl(ifd, DPAA_IOCTL_PORTAL_IRQ_MAP, map);
172 int process_portal_irq_unmap(int ifd)
177 struct dpaa_ioctl_raw_portal {
179 enum dpaa_portal_type type; /* Type of portal to allocate */
181 uint8_t enable_stash; /* set to non zero to turn on stashing */
182 /* Stashing attributes for the portal */
186 /* Specifies the stash request queue this portal should use */
189 /* Specifes a specific portal index to map or QBMAN_ANY_PORTAL_IDX
190 * for don't care. The portal index will be populated by the
191 * driver when the ioctl() successfully completes.
200 #define DPAA_IOCTL_ALLOC_RAW_PORTAL \
201 _IOWR(DPAA_IOCTL_MAGIC, 0x0C, struct dpaa_ioctl_raw_portal)
203 #define DPAA_IOCTL_FREE_RAW_PORTAL \
204 _IOR(DPAA_IOCTL_MAGIC, 0x0D, struct dpaa_ioctl_raw_portal)
206 static int process_portal_allocate(struct dpaa_ioctl_raw_portal *portal)
208 int ret = check_fd();
213 ret = ioctl(fd, DPAA_IOCTL_ALLOC_RAW_PORTAL, portal);
215 perror("ioctl(DPAA_IOCTL_ALLOC_RAW_PORTAL)");
221 static int process_portal_free(struct dpaa_ioctl_raw_portal *portal)
223 int ret = check_fd();
228 ret = ioctl(fd, DPAA_IOCTL_FREE_RAW_PORTAL, portal);
230 perror("ioctl(DPAA_IOCTL_FREE_RAW_PORTAL)");
236 int qman_allocate_raw_portal(struct dpaa_raw_portal *portal)
238 struct dpaa_ioctl_raw_portal input;
241 input.type = dpaa_portal_qman;
242 input.index = portal->index;
243 input.enable_stash = portal->enable_stash;
244 input.cpu = portal->cpu;
245 input.cache = portal->cache;
246 input.window = portal->window;
247 input.sdest = portal->sdest;
249 ret = process_portal_allocate(&input);
252 portal->index = input.index;
253 portal->cinh = input.cinh;
254 portal->cena = input.cena;
258 int qman_free_raw_portal(struct dpaa_raw_portal *portal)
260 struct dpaa_ioctl_raw_portal input;
262 input.type = dpaa_portal_qman;
263 input.index = portal->index;
264 input.cinh = portal->cinh;
265 input.cena = portal->cena;
267 return process_portal_free(&input);
270 int bman_allocate_raw_portal(struct dpaa_raw_portal *portal)
272 struct dpaa_ioctl_raw_portal input;
275 input.type = dpaa_portal_bman;
276 input.index = portal->index;
277 input.enable_stash = 0;
279 ret = process_portal_allocate(&input);
282 portal->index = input.index;
283 portal->cinh = input.cinh;
284 portal->cena = input.cena;
288 int bman_free_raw_portal(struct dpaa_raw_portal *portal)
290 struct dpaa_ioctl_raw_portal input;
292 input.type = dpaa_portal_bman;
293 input.index = portal->index;
294 input.cinh = portal->cinh;
295 input.cena = portal->cena;
297 return process_portal_free(&input);