 Nicholas PigginandAnup Patel
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8f1a6164f2
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lib: sbi: Add PMP CSR read and write accessors
PMPCFG CSR access is non-trivial as it requires shifting and masking, it
makes PMP manipulation code simpler if this basic CSR read/write access is
abstracted away.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260430045528.420437-6-npiggin@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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2026-06-10 13:23:18 +05:30 |
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Nicholas PigginandAnup Patel
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e9797b5e57
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lib: sbi: Move RISC-V PMP encoding functions to sbi_pmp.c
Create a new file for handling the RISC-V PMP format and the new pmp_t
type, as opposed to hart PMP CSR specific access.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260430045528.420437-4-npiggin@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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2026-06-10 13:17:30 +05:30 |
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Nicholas PigginandAnup Patel
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c93a89f214
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lib: sbi: split PMP encoding and CSR access
Allow PMP encoding functions to be shared with non-hart PMP manipulation
by splitting encoding / decoding and hart PMP CSR access into their own
functions.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260430045528.420437-3-npiggin@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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2026-06-10 09:57:58 +05:30 |
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Nicholas PigginandAnup Patel
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8ae3b0985a
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lib: sbi: Introduce pmp_t type
To help abstract details of PMP encoding and access, add a new pmp_t
type which contains address and cfg in the format of the riscv CSRs.
There is no functional change.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260430045528.420437-2-npiggin@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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2026-06-10 09:56:29 +05:30 |
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Nicholas PigginandAnup Patel
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6767861c48
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platform: generic: Tenstorrent Atlantis support
Add the Tenstorrent Atlantis as a generic-platform. This initial support
enables the single_fw_region option, and verifies and prints HART PMA
CSR configuration.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260424062520.238403-1-npiggin@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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2026-05-09 20:57:50 +05:30 |
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