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head/sys/arm64/arm64/busdma_bounce.c
| Show First 20 Lines • Show All 107 Lines • ▼ Show 20 Lines | struct bounce_zone { | ||||
| struct sysctl_oid *sysctl_tree_top; | struct sysctl_oid *sysctl_tree_top; | ||||
| }; | }; | ||||
| static struct mtx bounce_lock; | static struct mtx bounce_lock; | ||||
| static int total_bpages; | static int total_bpages; | ||||
| static int busdma_zonecount; | static int busdma_zonecount; | ||||
| static STAILQ_HEAD(, bounce_zone) bounce_zone_list; | static STAILQ_HEAD(, bounce_zone) bounce_zone_list; | ||||
| static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters"); | static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, | ||||
| "Busdma parameters"); | |||||
| SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0, | SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0, | ||||
| "Total bounce pages"); | "Total bounce pages"); | ||||
| struct sync_list { | struct sync_list { | ||||
| vm_offset_t vaddr; /* kva of client data */ | vm_offset_t vaddr; /* kva of client data */ | ||||
| bus_addr_t paddr; /* physical address */ | bus_addr_t paddr; /* physical address */ | ||||
| vm_page_t pages; /* starting page of client data */ | vm_page_t pages; /* starting page of client data */ | ||||
| bus_size_t datacount; /* client data count */ | bus_size_t datacount; /* client data count */ | ||||
| ▲ Show 20 Lines • Show All 1,016 Lines • ▼ Show 20 Lines | alloc_bounce_zone(bus_dma_tag_t dmat) | ||||
| busdma_zonecount++; | busdma_zonecount++; | ||||
| snprintf(bz->lowaddrid, 18, "%#jx", (uintmax_t)bz->lowaddr); | snprintf(bz->lowaddrid, 18, "%#jx", (uintmax_t)bz->lowaddr); | ||||
| STAILQ_INSERT_TAIL(&bounce_zone_list, bz, links); | STAILQ_INSERT_TAIL(&bounce_zone_list, bz, links); | ||||
| dmat->bounce_zone = bz; | dmat->bounce_zone = bz; | ||||
| sysctl_ctx_init(&bz->sysctl_tree); | sysctl_ctx_init(&bz->sysctl_tree); | ||||
| bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree, | bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree, | ||||
| SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid, | SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid, | ||||
| CTLFLAG_RD, 0, ""); | CTLFLAG_RD | CTLFLAG_MPSAFE, 0, ""); | ||||
| if (bz->sysctl_tree_top == NULL) { | if (bz->sysctl_tree_top == NULL) { | ||||
| sysctl_ctx_free(&bz->sysctl_tree); | sysctl_ctx_free(&bz->sysctl_tree); | ||||
| return (0); /* XXX error code? */ | return (0); /* XXX error code? */ | ||||
| } | } | ||||
| SYSCTL_ADD_INT(busdma_sysctl_tree(bz), | SYSCTL_ADD_INT(busdma_sysctl_tree(bz), | ||||
| SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO, | SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO, | ||||
| "total_bpages", CTLFLAG_RD, &bz->total_bpages, 0, | "total_bpages", CTLFLAG_RD, &bz->total_bpages, 0, | ||||
| ▲ Show 20 Lines • Show All 201 Lines • Show Last 20 Lines | |||||