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authorIan Moffett <ian@osmora.org>2025-06-04 17:51:21 -0400
committerIan Moffett <ian@osmora.org>2025-06-04 17:51:21 -0400
commit961fb99ff22f50cfd3912e6458c9d4fbea86dbfb (patch)
treeaa345b44dcfacfc77a1d8dd12e693d51bae5dbf6 /sys/dev
parent6ab929aa7bc5a3cdf0daba4ba1f0c9f2bbb68c9a (diff)
kernel: xhci: Fix scratchpad page count
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/dev')
-rw-r--r--sys/dev/usb/xhci.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/dev/usb/xhci.c b/sys/dev/usb/xhci.c
index 5276eea..2b55f16 100644
--- a/sys/dev/usb/xhci.c
+++ b/sys/dev/usb/xhci.c
@@ -176,6 +176,7 @@ xhci_init_scratchpads(struct xhci_hc *hc)
struct xhci_caps *caps = XHCI_CAPS(hc->base);
uint16_t max_bufs_lo, max_bufs_hi;
uint16_t max_bufs;
+ uint32_t npages;
uintptr_t *bufarr, tmp;
max_bufs_lo = XHCI_MAX_SP_LO(caps->hcsparams1);
@@ -189,8 +190,9 @@ xhci_init_scratchpads(struct xhci_hc *hc)
return 0;
}
- pr_trace("using %d pages for xHC scratchpads\n");
- bufarr = dynalloc_memalign(sizeof(uintptr_t)*max_bufs, 0x1000);
+ npages = (sizeof(uint64_t) * max_bufs) / DEFAULT_PAGESIZE;
+ pr_trace("using %d pages for xHC scratchpads\n", npages);
+ bufarr = dynalloc_memalign(npages * DEFAULT_PAGESIZE, 0x1000);
if (bufarr == NULL) {
pr_error("failed to allocate scratchpad buffer array\n");
return -1;