Rakesh Pillai <pillair@xxxxxxxxxxxxxx> wrote: > WCN3990 is a 37-bit target but can address memory range > only upto 35 bits. The 36th bit is used to control the > smmu/iommu translation and the 37th bit is used by the > internal bus masters to access the wifi subsystem internal > SRAM. With the DMA mask set to 37i-bit, the host driver > can get 37-bit dma address, which leads to incorrect > address access in the target. > > Hence the host driver can used addresses upto 35-bit > for WCN3990. Fix the dma mask for wcn3990 to 35-bit, > instead of 37-bit. > > Tested HW: WCN3990 > Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1 > > Tested-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> > Signed-off-by: Rakesh Pillai <pillair@xxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 5b9030cee1be ath10k: Set DMA address mask to 35 bit for WCN3990 -- https://patchwork.kernel.org/patch/10586127/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
