mirror of https://github.com/hak5/openwrt.git
89 lines
2.8 KiB
Diff
89 lines
2.8 KiB
Diff
From: George Kashperko <george@znau.edu.ua>
|
|
|
|
broadcom-wl driver bound to ssb device with ssb driver probe
|
|
have osh handle struct pdev pointer value initialized with
|
|
ssb_device pointer. Later on pdev is used with legacy pci
|
|
dma api as pci_dev thus causing oops sometimes.
|
|
|
|
The patch replaces legacy pci dma api and pass relevant
|
|
device struct pointer to avoid crashes.
|
|
Signed-off-by: George Kashperko <george@znau.edu.ua>
|
|
---
|
|
driver/linux_osl.c | 28 +++++++++++++++++++++++-----
|
|
1 file changed, 23 insertions(+), 5 deletions(-)
|
|
--- broadcom-wl-5.10.56.27.3.orig/driver/linux_osl.c 2011-05-17 23:40:00.000000000 +0300
|
|
+++ broadcom-wl-5.10.56.27.3/driver/linux_osl.c 2011-05-17 23:46:01.000000000 +0300
|
|
@@ -25,6 +25,9 @@
|
|
#include <asm/paccess.h>
|
|
#endif /* mips */
|
|
#include <pcicfg.h>
|
|
+#ifdef CONFIG_SSB
|
|
+#include <linux/ssb/ssb.h>
|
|
+#endif
|
|
|
|
#define PCI_CFG_RETRY 10
|
|
|
|
@@ -364,12 +367,27 @@ osl_dma_consistent_align(void)
|
|
return (PAGE_SIZE);
|
|
}
|
|
|
|
+static struct device *
|
|
+osl_get_dmadev(osl_t *osh)
|
|
+{
|
|
+#ifdef CONFIG_SSB
|
|
+ if (osh->bustype == SI_BUS) {
|
|
+ /* This can be SiliconBackplane emulated as pci with Broadcom or
|
|
+ * ssb device. Less harmful is to check for pci_bus_type and if
|
|
+ * no match then assume we got ssb */
|
|
+ if (((struct pci_dev *)osh->pdev)->dev.bus != &pci_bus_type)
|
|
+ return ((struct ssb_device *)osh->pdev)->dma_dev;
|
|
+ }
|
|
+#endif
|
|
+ return &((struct pci_dev *)osh->pdev)->dev;
|
|
+}
|
|
+
|
|
void*
|
|
osl_dma_alloc_consistent(osl_t *osh, uint size, ulong *pap)
|
|
{
|
|
ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
|
|
|
|
- return (pci_alloc_consistent(osh->pdev, size, (dma_addr_t*)pap));
|
|
+ return (dma_alloc_coherent(osl_get_dmadev(osh), size, (dma_addr_t*)pap, GFP_ATOMIC));
|
|
}
|
|
|
|
void
|
|
@@ -377,7 +395,7 @@ osl_dma_free_consistent(osl_t *osh, void
|
|
{
|
|
ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
|
|
|
|
- pci_free_consistent(osh->pdev, size, va, (dma_addr_t)pa);
|
|
+ dma_free_coherent(osl_get_dmadev(osh), size, va, (dma_addr_t)pa);
|
|
}
|
|
|
|
uint BCMFASTPATH
|
|
@@ -386,13 +404,13 @@ osl_dma_map(osl_t *osh, void *va, uint s
|
|
ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
|
|
|
|
if (direction == DMA_TX)
|
|
- return (pci_map_single(osh->pdev, va, size, PCI_DMA_TODEVICE));
|
|
+ return (dma_map_single(osl_get_dmadev(osh), va, size, PCI_DMA_TODEVICE));
|
|
else {
|
|
#ifdef mips
|
|
dma_cache_inv((uint)va, size);
|
|
return (virt_to_phys(va));
|
|
#else /* mips */
|
|
- return (pci_map_single(osh->pdev, va, size, PCI_DMA_FROMDEVICE));
|
|
+ return (dma_map_single(osl_get_dmadev(osh), va, size, PCI_DMA_FROMDEVICE));
|
|
#endif /* mips */
|
|
}
|
|
}
|
|
@@ -404,7 +422,7 @@ osl_dma_unmap(osl_t *osh, uint pa, uint
|
|
|
|
ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
|
|
dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE;
|
|
- pci_unmap_single(osh->pdev, (uint32)pa, size, dir);
|
|
+ dma_unmap_single(osl_get_dmadev(osh), (uint32)pa, size, dir);
|
|
}
|
|
|
|
|