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| author | Tom Rini <trini@konsulko.com> | 2024-06-25 17:22:36 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-06-26 07:36:55 -0600 |
| commit | 42276c3658173287078cf95461778c6e11631d34 (patch) | |
| tree | da83d91bf56c6aef8ba83edac47fb28b0fce80a9 /drivers/ddr/marvell/axp/ddr3_init.c | |
| parent | a7eada24327a40f7ef6c55c220e119839c9d4227 (diff) | |
| parent | 9bd7fdd539e048925866cfc76e662c97f4dc802d (diff) | |
Merge patch series "arm64: add a software pagetable walker"
Caleb Connolly <caleb.connolly@linaro.org> says:
MMU issues are some of the most frustrating to debug. To make this
slightly less unbearable, introduce a software pagetable walker for
ARMv8. This can be called to dump a pagetable with the default
formatter, or a custom callback can be provided to implement more
complicated parsing.
This can also be useful to dump the pagetable used by a previous
bootloader stage (by reading out the ttbr register).
Here is an example of the output when walking U-Boot's own memory map
on a Qualcomm RB3 board:
Walking pagetable at 000000017df90000, va_bits: 36. Using 3 levels
[0x17df91000] | Table | |
[0x17df92000] | Table | |
[0x000001000 - 0x000200000] | Pages | Device-nGnRnE | Non-shareable
[0x000200000 - 0x040000000] | Block | Device-nGnRnE | Non-shareable
[0x040000000 - 0x080000000] | Block | Device-nGnRnE | Non-shareable
[0x080000000 - 0x140000000] | Block | Normal | Inner-shareable
[0x17df93000] | Table | |
[0x140000000 - 0x17de00000] | Block | Normal | Inner-shareable
[0x17df94000] | Table | |
[0x17de00000 - 0x17dfa0000] | Pages | Normal | Inner-shareable
Diffstat (limited to 'drivers/ddr/marvell/axp/ddr3_init.c')
0 files changed, 0 insertions, 0 deletions