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| author | Marcin Wojtas <mw@FreeBSD.org> | 2021-04-28 08:55:40 +0000 |
|---|---|---|
| committer | Marcin Wojtas <mw@FreeBSD.org> | 2021-06-02 07:55:19 +0000 |
| commit | 7d8700bc291b4b3be1a592cae539f9e682592d9d (patch) | |
| tree | 2d02ca1c5125c0c7194f4ac3f85201e71ca45de3 | |
| parent | 9cf66a0458f4913d34cb3c5f6b653c78f70de8a8 (diff) | |
| download | src-7d8700bc291b4b3be1a592cae539f9e682592d9d.tar.gz src-7d8700bc291b4b3be1a592cae539f9e682592d9d.zip | |
sdhci: extend bus_dma_tag boundary to 64-bit space
This patch adds support for the SDHCI_CAN_DO_64BIT
capability, so that to allow 64-bit DMA operation
for the controllers which support this feature.
Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Marvell
Differential Revision: https://reviews.freebsd.org/D30560
MFC after: 2 weeks
| -rw-r--r-- | sys/dev/sdhci/sdhci.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/dev/sdhci/sdhci.c b/sys/dev/sdhci/sdhci.c index 0441320d4b35..68a3cf9ab4d3 100644 --- a/sys/dev/sdhci/sdhci.c +++ b/sys/dev/sdhci/sdhci.c @@ -132,7 +132,7 @@ static int sdhci_cam_update_ios(struct sdhci_slot *slot); #endif /* helper routines */ -static int sdhci_dma_alloc(struct sdhci_slot *slot); +static int sdhci_dma_alloc(struct sdhci_slot *slot, uint32_t caps); static void sdhci_dma_free(struct sdhci_slot *slot); static void sdhci_dumpregs(struct sdhci_slot *slot); static void sdhci_getaddr(void *arg, bus_dma_segment_t *segs, int nsegs, @@ -717,7 +717,7 @@ sdhci_card_poll(void *arg) } static int -sdhci_dma_alloc(struct sdhci_slot *slot) +sdhci_dma_alloc(struct sdhci_slot *slot, uint32_t caps) { int err; @@ -750,7 +750,8 @@ sdhci_dma_alloc(struct sdhci_slot *slot) * be aligned to the SDMA boundary. */ err = bus_dma_tag_create(bus_get_dma_tag(slot->bus), slot->sdma_bbufsz, - 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, + 0, (caps & SDHCI_CAN_DO_64BIT) ? BUS_SPACE_MAXADDR : + BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, slot->sdma_bbufsz, 1, slot->sdma_bbufsz, BUS_DMA_ALLOCNOW, NULL, NULL, &slot->dmatag); if (err != 0) { @@ -1032,7 +1033,7 @@ no_tuning: slot->opt &= ~SDHCI_HAVE_DMA; if (slot->opt & SDHCI_HAVE_DMA) { - err = sdhci_dma_alloc(slot); + err = sdhci_dma_alloc(slot, caps); if (err != 0) { if (slot->opt & SDHCI_TUNING_SUPPORTED) { free(slot->tune_req, M_DEVBUF); |