Author: adrian
Date: Wed Feb 22 05:11:24 2017
New Revision: 314082
URL: https://svnweb.freebsd.org/changeset/base/314082
Log:
[iwm] Move iwm_dma_contig_alloc/_free functions to if_iwm_util.c.
Obtained from: dragonflybsd.git
83a1185edeede081051a6c00417d4c5a8f5988eb
Modified:
head/sys/dev/iwm/if_iwm.c
head/sys/dev/iwm/if_iwm_util.c
head/sys/dev/iwm/if_iwm_util.h
Modified: head/sys/dev/iwm/if_iwm.c
==============================================================================
--- head/sys/dev/iwm/if_iwm.c Wed Feb 22 04:53:33 2017 (r314081)
+++ head/sys/dev/iwm/if_iwm.c Wed Feb 22 05:11:24 2017 (r314082)
@@ -239,10 +239,6 @@ static int iwm_firmware_store_section(st
static int iwm_set_default_calib(struct iwm_softc *, const void *);
static void iwm_fw_info_free(struct iwm_fw_info *);
static int iwm_read_firmware(struct iwm_softc *, enum iwm_ucode_type);
-static void iwm_dma_map_addr(void *, bus_dma_segment_t *, int, int);
-static int iwm_dma_contig_alloc(bus_dma_tag_t, struct iwm_dma_info *,
- bus_size_t, bus_size_t);
-static void iwm_dma_contig_free(struct iwm_dma_info *);
static int iwm_alloc_fwmem(struct iwm_softc *);
static int iwm_alloc_sched(struct iwm_softc *);
static int iwm_alloc_kw(struct iwm_softc *);
@@ -893,71 +889,6 @@ iwm_read_firmware(struct iwm_softc *sc,
* DMA resource routines
*/
-static void
-iwm_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
-{
- if (error != 0)
- return;
- KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
- *(bus_addr_t *)arg = segs[0].ds_addr;
-}
-
-static int
-iwm_dma_contig_alloc(bus_dma_tag_t tag, struct iwm_dma_info *dma,
- bus_size_t size, bus_size_t alignment)
-{
- int error;
-
- dma->tag = NULL;
- dma->map = NULL;
- dma->size = size;
- dma->vaddr = NULL;
-
- error = bus_dma_tag_create(tag, alignment,
- 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
- 1, size, 0, NULL, NULL, &dma->tag);
- if (error != 0)
- goto fail;
-
- error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
- BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
- if (error != 0)
- goto fail;
-
- error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
- iwm_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
- if (error != 0) {
- bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
- dma->vaddr = NULL;
- goto fail;
- }
-
- bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
-
- return 0;
-
-fail:
- iwm_dma_contig_free(dma);
-
- return error;
-}
-
-static void
-iwm_dma_contig_free(struct iwm_dma_info *dma)
-{
- if (dma->vaddr != NULL) {
- bus_dmamap_sync(dma->tag, dma->map,
- BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
- bus_dmamap_unload(dma->tag, dma->map);
- bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
- dma->vaddr = NULL;
- }
- if (dma->tag != NULL) {
- bus_dma_tag_destroy(dma->tag);
- dma->tag = NULL;
- }
-}
-
/* fwmem is used to load firmware onto the card */
static int
iwm_alloc_fwmem(struct iwm_softc *sc)
Modified: head/sys/dev/iwm/if_iwm_util.c
==============================================================================
--- head/sys/dev/iwm/if_iwm_util.c Wed Feb 22 04:53:33 2017
(r314081)
+++ head/sys/dev/iwm/if_iwm_util.c Wed Feb 22 05:11:24 2017
(r314082)
@@ -421,3 +421,68 @@ iwm_free_resp(struct iwm_softc *sc, stru
sc->sc_wantresp = -1;
wakeup(&sc->sc_wantresp);
}
+
+static void
+iwm_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
+{
+ if (error != 0)
+ return;
+ KASSERT(nsegs == 1, ("too many DMA segments, %d should be 1", nsegs));
+ *(bus_addr_t *)arg = segs[0].ds_addr;
+}
+
+int
+iwm_dma_contig_alloc(bus_dma_tag_t tag, struct iwm_dma_info *dma,
+ bus_size_t size, bus_size_t alignment)
+{
+ int error;
+
+ dma->tag = NULL;
+ dma->map = NULL;
+ dma->size = size;
+ dma->vaddr = NULL;
+
+ error = bus_dma_tag_create(tag, alignment,
+ 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, size,
+ 1, size, 0, NULL, NULL, &dma->tag);
+ if (error != 0)
+ goto fail;
+
+ error = bus_dmamem_alloc(dma->tag, (void **)&dma->vaddr,
+ BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, &dma->map);
+ if (error != 0)
+ goto fail;
+
+ error = bus_dmamap_load(dma->tag, dma->map, dma->vaddr, size,
+ iwm_dma_map_addr, &dma->paddr, BUS_DMA_NOWAIT);
+ if (error != 0) {
+ bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
+ dma->vaddr = NULL;
+ goto fail;
+ }
+
+ bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_PREWRITE);
+
+ return 0;
+
+fail:
+ iwm_dma_contig_free(dma);
+
+ return error;
+}
+
+void
+iwm_dma_contig_free(struct iwm_dma_info *dma)
+{
+ if (dma->vaddr != NULL) {
+ bus_dmamap_sync(dma->tag, dma->map,
+ BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+ bus_dmamap_unload(dma->tag, dma->map);
+ bus_dmamem_free(dma->tag, dma->vaddr, dma->map);
+ dma->vaddr = NULL;
+ }
+ if (dma->tag != NULL) {
+ bus_dma_tag_destroy(dma->tag);
+ dma->tag = NULL;
+ }
+}
Modified: head/sys/dev/iwm/if_iwm_util.h
==============================================================================
--- head/sys/dev/iwm/if_iwm_util.h Wed Feb 22 04:53:33 2017
(r314081)
+++ head/sys/dev/iwm/if_iwm_util.h Wed Feb 22 05:11:24 2017
(r314082)
@@ -116,6 +116,10 @@ extern int iwm_mvm_send_cmd_pdu_status(s
uint16_t len, const void *data, uint32_t *status);
extern void iwm_free_resp(struct iwm_softc *sc, struct iwm_host_cmd *hcmd);
+extern int iwm_dma_contig_alloc(bus_dma_tag_t tag, struct iwm_dma_info *dma,
+ bus_size_t size, bus_size_t alignment);
+extern void iwm_dma_contig_free(struct iwm_dma_info *);
+
static inline uint8_t
iwm_mvm_get_valid_tx_ant(struct iwm_softc *sc)
{
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