netdev - Re: [PATCH 1/2] net: ethernet: ucc_geth: fix MEM_PART

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Date:   Thu, 9 Feb 2017 11:45:17 +0100
From:   Christophe LEROY <christophe.leroy@....fr>
To:     Li Yang <leoli@...escale.com>, Qiang Zhao <qiang.zhao@....com>,
        Scott Wood <oss@...error.net>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] net: ethernet: ucc_geth: fix MEM_PART_MURAM mode

Acked-by: David S. Miller <davem@...emloft.net>

Le 07/02/2017 à 10:05, Christophe Leroy a écrit :
> Since commit 5093bb965a163 ("powerpc/QE: switch to the cpm_muram
> implementation"), muram area is not part of immrbar mapping anymore
> so immrbar_virt_to_phys() is not usable anymore.
>
> Fixes: 5093bb965a163 ("powerpc/QE: switch to the cpm_muram implementation)
> Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
> ---
>  drivers/net/ethernet/freescale/ucc_geth.c | 8 +++-----
>  include/soc/fsl/qe/qe.h                   | 1 +
>  2 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
> index 3f7ae9f..f77ba9f 100644
> --- a/drivers/net/ethernet/freescale/ucc_geth.c
> +++ b/drivers/net/ethernet/freescale/ucc_geth.c
> @@ -2594,11 +2594,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth)
>  		} else if (ugeth->ug_info->uf_info.bd_mem_part ==
>  			   MEM_PART_MURAM) {
>  			out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
> -				 (u32) immrbar_virt_to_phys(ugeth->
> -							    p_tx_bd_ring[i]));
> +				 (u32)qe_muram_dma(ugeth->p_tx_bd_ring[i]));
>  			out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
>  				 last_bd_completed_address,
> -				 (u32) immrbar_virt_to_phys(endOfRing));
> +				 (u32)qe_muram_dma(endOfRing));
>  		}
>  	}
>
> @@ -2844,8 +2843,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth)
>  		} else if (ugeth->ug_info->uf_info.bd_mem_part ==
>  			   MEM_PART_MURAM) {
>  			out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
> -				 (u32) immrbar_virt_to_phys(ugeth->
> -							    p_rx_bd_ring[i]));
> +				 (u32)qe_muram_dma(ugeth->p_rx_bd_ring[i]));
>  		}
>  		/* rest of fields handled by QE */
>  	}
> diff --git a/include/soc/fsl/qe/qe.h b/include/soc/fsl/qe/qe.h
> index 70339d7..0cd4c1147 100644
> --- a/include/soc/fsl/qe/qe.h
> +++ b/include/soc/fsl/qe/qe.h
> @@ -243,6 +243,7 @@ static inline int qe_alive_during_sleep(void)
>  #define qe_muram_free cpm_muram_free
>  #define qe_muram_addr cpm_muram_addr
>  #define qe_muram_offset cpm_muram_offset
> +#define qe_muram_dma cpm_muram_dma
>
>  #define qe_setbits32(_addr, _v) iowrite32be(ioread32be(_addr) |  (_v), (_addr))
>  #define qe_clrbits32(_addr, _v) iowrite32be(ioread32be(_addr) & ~(_v), (_addr))
>