On Tue, Mar 16, 2021 at 12:16:43PM +0100, Thierry Reding wrote:
> > +struct tegra_smmu_group_debug {
> > + const struct tegra_smmu_swgroup *group;
> > + void *priv;
>
> This always stores the address space, so why not make this:
>
> struct tegra_smmu_as *as;
>
> ? While at it,
16.03.2021 14:16, Thierry Reding пишет:
>> +seq_puts(s, "}\n");
>> +seq_printf(s, "Total PDE count: %u\n", pde_count);
>> +seq_printf(s, "Total PTE count: %llu\n", pte_count);
> Some of the above looks like it wouldn't be very easily consumed by
> scripts. Is that something we want to
15.03.2021 23:36, Nicolin Chen пишет:
> +static int tegra_smmu_mappings_show(struct seq_file *s, void *data)
> +{
> + struct tegra_smmu_group_debug *group_debug = s->private;
> + const struct tegra_smmu_swgroup *group;
> + struct tegra_smmu_as *as;
> + struct tegra_smmu *smmu;
> +
15.03.2021 23:36, Nicolin Chen пишет:
> +static unsigned long pd_pt_index_iova(unsigned int pd_index, unsigned int
> pt_index)
> +{
> + return ((dma_addr_t)pd_index & (SMMU_NUM_PDE - 1)) << SMMU_PDE_SHIFT |
> +((dma_addr_t)pt_index & (SMMU_NUM_PTE - 1)) << SMMU_PTE_SHIFT;
> +}
On Mon, Mar 15, 2021 at 01:36:31PM -0700, Nicolin Chen wrote:
> This patch dumps all active mapping entries from pagetable
> to a debugfs directory named "mappings".
>
> Attaching an example:
>
> SWGROUP: hc
> ASID: 0
> reg: 0x250
> PTB_ASID: 0xe0080004
> as->pd_dma: 0x80004000
> {
>
This patch dumps all active mapping entries from pagetable
to a debugfs directory named "mappings".
Attaching an example:
SWGROUP: hc
ASID: 0
reg: 0x250
PTB_ASID: 0xe0080004
as->pd_dma: 0x80004000
{
[1023] 0xf008000b (1)
{
PTE RANGE | ATTR | PHYS
