> --- a/arch/parisc/include/uapi/asm/pdc.h
> +++ b/arch/parisc/include/uapi/asm/pdc.h
> @@ -689,6 +689,28 @@ struct pdc_hpmc_pim_20 { /* PDC_PIM */
> unsigned long long fr[32];
> };
>
> +struct pdc_toc_pim_11 {
> + unsigned int gr[32];
> + unsigned int cr[32];
> + unsigned int sr[8];
> + unsigned int iasq_back;
> + unsigned int iaoq_back;
> + unsigned int check_type;
> + unsigned int hversion;
> + unsigned int cpu_state;
> +};
> +
> +struct pdc_toc_pim_20 {
> + unsigned long long gr[32];
> + unsigned long long cr[32];
> + unsigned long long sr[8];
> + unsigned long long iasq_back;
> + unsigned long long iaoq_back;
> + unsigned int check_type;
> + unsigned int hversion;
> + unsigned int cpu_state;
> +};
> +
> #endif /* !defined(__ASSEMBLY__) */
Since these are defined by the hardware and have a well defined size I suggest
using u32 and u64 to cover this.
> diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
> index 7034227dbdf3..9179b4409b63 100644
> --- a/arch/parisc/kernel/firmware.c
> +++ b/arch/parisc/kernel/firmware.c
> @@ -1061,6 +1061,38 @@ int pdc_mem_pdt_read_entries(struct pdc_mem_read_pdt
> *pret, return retval;
> }
>
> +/**
> + * pdc_pim_toc11 - Fetch TOC PIM 1.1 data from firmware.
> + * @ret: pointer to return buffer
> + */
> +int pdc_pim_toc11(struct pdc_toc_pim_11 *ret)
> +{
> + int retval;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&pdc_lock, flags);
> + retval = mem_pdc_call(PDC_PIM, PDC_PIM_TOC, __pa(pdc_result),
> + __pa(ret), sizeof(struct
pdc_toc_pim_11));
sizeof(*ret)
> + spin_unlock_irqrestore(&pdc_lock, flags);
> + return retval;
> +}
> +
> +/**
> + * pdc_pim_toc20 - Fetch TOC PIM 2.0 data from firmware.
> + * @ret: pointer to return buffer
> + */
> +int pdc_pim_toc20(struct pdc_toc_pim_20 *ret)
> +{
> + int retval;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&pdc_lock, flags);
> + retval = mem_pdc_call(PDC_PIM, PDC_PIM_TOC, __pa(pdc_result),
> + __pa(ret), sizeof(struct
pdc_toc_pim_20));
sizeof(*ret)
> + spin_unlock_irqrestore(&pdc_lock, flags);
> + return retval;
> +}
> +
> /**
> * pdc_tod_set - Set the Time-Of-Day clock.
> * @sec: The number of seconds since epoch.
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