On Mon, Sep 17, 2018 at 07:55:05PM +0530, Manish Narani wrote:
> Add support for Error Injection for ZynqMP DDRC IP. For injecting
> errors, the Row, Column, Bank, Bank Group and Rank bits positions are
> determined via Address Map registers of Synopsys DDRC.
>
> Signed-off-by: Manish Narani <manish.nar...@xilinx.com>
> ---
> drivers/edac/synopsys_edac.c | 423
> ++++++++++++++++++++++++++++++++++++++++++-
> 1 file changed, 417 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
> index 7ab5b9a..177b5c3 100644
> --- a/drivers/edac/synopsys_edac.c
> +++ b/drivers/edac/synopsys_edac.c
> @@ -302,12 +302,18 @@ struct synps_ecc_status {
>
> /**
> * struct synps_edac_priv - DDR memory controller private instance data.
> - * @baseaddr: Base address of the DDR controller.
> - * @message: Buffer for framing the event specific info.
> - * @stat: ECC status information.
> - * @p_data: Platform data
> - * @ce_cnt: Correctable Error count.
> - * @ue_cnt: Uncorrectable Error count.
> + * @baseaddr: Base address of the DDR controller.
> + * @message: Buffer for framing the event specific info.
> + * @stat: ECC status information.
> + * @p_data: Platform data
> + * @ce_cnt: Correctable Error count.
> + * @ue_cnt: Uncorrectable Error count.
> + * @poison_addr: Data poison address.
> + * @row_shift: Bit shifts for row bit.
> + * @col_shift: Bit shifts for column bit.
> + * @bank_shift: Bit shifts for bank bit.
> + * @bankgrp_shift: Bit shifts for bank group bit.
> + * @rank_shift: Bit shifts for rank bit.
> */
> struct synps_edac_priv {
> void __iomem *baseaddr;
> @@ -316,6 +322,14 @@ struct synps_edac_priv {
> const struct synps_platform_data *p_data;
> u32 ce_cnt;
> u32 ue_cnt;
> +#ifdef CONFIG_EDAC_DEBUG
> + ulong poison_addr;
> + u32 row_shift[18];
> + u32 col_shift[14];
> + u32 bank_shift[3];
> + u32 bankgrp_shift[2];
> + u32 rank_shift[1];
> +#endif
> };
>
> /**
> @@ -842,7 +856,12 @@ static const struct synps_platform_data zynqmp_edac_def
> = {
> .get_mtype = zynqmp_get_mtype,
> .get_dtype = zynqmp_get_dtype,
> .get_eccstate = zynqmp_get_eccstate,
> +#ifdef CONFIG_EDAC_DEBUG
> + .quirks = (DDR_ECC_INTR_SUPPORT |
> + DDR_ECC_DATA_POISON_SUPPORT),
> +#else
> .quirks = DDR_ECC_INTR_SUPPORT,
> +#endif
> };
Simplify that:
.quirks = (DDR_ECC_INTR_SUPPORT
#ifdef CONFIG_EDAC_DEBUG
| DDR_ECC_DATA_POISON_SUPPORT
#endif
),
> +/**
> + * setup_address_map - Set Address Map by querying ADDRMAP registers.
> + * @priv: DDR memory controller private instance data.
> + *
> + * Set Address Map by querying ADDRMAP registers.
> + *
> + * Return: none.
> + */
> +static void setup_address_map(struct synps_edac_priv *priv)
> +{
> + u32 addrmap[12];
> + int index;
> +
> + for (index = 0; index < 12; index++) {
> + u32 addrmap_offset;
> +
> + addrmap_offset = ECC_ADDRMAP0_OFFSET + (index * 4);
> + addrmap[index] = readl(priv->baseaddr + addrmap_offset);
> + }
> +
> + /* Set Row Address Map */
> + setup_row_address_map(priv, addrmap);
> +
> + /* Set Column Address Map */
> + setup_column_address_map(priv, addrmap);
> +
> + /* Set Bank Address Map */
> + setup_bank_address_map(priv, addrmap);
> +
> + /* Set Bank Group Address Map */
> + setup_bg_address_map(priv, addrmap);
> +
> + /* Set Rank Address Map */
> + setup_rank_address_map(priv, addrmap);
All those comments which basically repeat the function name look useless
to me.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
