From: Haren Myneni <haren@xxxxxxxxxxxxx> [ Upstream commit c127d130f6d59fa81701f6b04023cf7cd1972fb3 ] In init_winctx_regs(), __pa() is called on winctx->rx_fifo and this function is called to initialize registers for receive and fault windows. But the real address is passed in winctx->rx_fifo for receive windows and the virtual address for fault windows which causes errors with DEBUG_VIRTUAL enabled. Fixes this issue by assigning only real address to rx_fifo in vas_rx_win_attr struct for both receive and fault windows. Reported-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Signed-off-by: Haren Myneni <haren@xxxxxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/338e958c7ab8f3b266fa794a1f80f99b9671829e.camel@xxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/powerpc/include/asm/vas.h | 2 +- arch/powerpc/platforms/powernv/vas-fault.c | 2 +- arch/powerpc/platforms/powernv/vas-window.c | 4 ++-- arch/powerpc/platforms/powernv/vas.h | 2 +- drivers/crypto/nx/nx-common-powernv.c | 2 +- 5 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h index e33f80b0ea81..47062b457049 100644 --- a/arch/powerpc/include/asm/vas.h +++ b/arch/powerpc/include/asm/vas.h @@ -52,7 +52,7 @@ enum vas_cop_type { * Receive window attributes specified by the (in-kernel) owner of window. */ struct vas_rx_win_attr { - void *rx_fifo; + u64 rx_fifo; int rx_fifo_size; int wcreds_max; diff --git a/arch/powerpc/platforms/powernv/vas-fault.c b/arch/powerpc/platforms/powernv/vas-fault.c index 3d21fce254b7..dd9c23c09781 100644 --- a/arch/powerpc/platforms/powernv/vas-fault.c +++ b/arch/powerpc/platforms/powernv/vas-fault.c @@ -352,7 +352,7 @@ int vas_setup_fault_window(struct vas_instance *vinst) vas_init_rx_win_attr(&attr, VAS_COP_TYPE_FAULT); attr.rx_fifo_size = vinst->fault_fifo_size; - attr.rx_fifo = vinst->fault_fifo; + attr.rx_fifo = __pa(vinst->fault_fifo); /* * Max creds is based on number of CRBs can fit in the FIFO. diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index 7ba0840fc3b5..3a86cdd5ae6c 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -403,7 +403,7 @@ static void init_winctx_regs(struct vas_window *window, * * See also: Design note in function header. */ - val = __pa(winctx->rx_fifo); + val = winctx->rx_fifo; val = SET_FIELD(VAS_PAGE_MIGRATION_SELECT, val, 0); write_hvwc_reg(window, VREG(LFIFO_BAR), val); @@ -737,7 +737,7 @@ static void init_winctx_for_rxwin(struct vas_window *rxwin, */ winctx->fifo_disable = true; winctx->intr_disable = true; - winctx->rx_fifo = NULL; + winctx->rx_fifo = 0; } winctx->lnotify_lpid = rxattr->lnotify_lpid; diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h index 70f793e8f6cc..1f6e73809205 100644 --- a/arch/powerpc/platforms/powernv/vas.h +++ b/arch/powerpc/platforms/powernv/vas.h @@ -383,7 +383,7 @@ struct vas_window { * is a container for the register fields in the window context. */ struct vas_winctx { - void *rx_fifo; + u64 rx_fifo; int rx_fifo_size; int wcreds_max; int rsvd_txbuf_count; diff --git a/drivers/crypto/nx/nx-common-powernv.c b/drivers/crypto/nx/nx-common-powernv.c index 13c65deda8e9..8a4f10bb3fcd 100644 --- a/drivers/crypto/nx/nx-common-powernv.c +++ b/drivers/crypto/nx/nx-common-powernv.c @@ -827,7 +827,7 @@ static int __init vas_cfg_coproc_info(struct device_node *dn, int chip_id, goto err_out; vas_init_rx_win_attr(&rxattr, coproc->ct); - rxattr.rx_fifo = (void *)rx_fifo; + rxattr.rx_fifo = rx_fifo; rxattr.rx_fifo_size = fifo_size; rxattr.lnotify_lpid = lpid; rxattr.lnotify_pid = pid; -- 2.35.1
