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target/riscv: added translation drivers
Existing flags: 'enable_virtual' and 'enable_virt2phys' were replaced with explicit translation drivers. Motivation: (1) Having 'enable_virtual' and 'enable_virt2phys' flags set simultaneously may cause double address translation which is unacceptable (2) Flags were global for all targets which is wrong too Signed-off-by: Farid Khaydari <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| # SPDX-License-Identifier: GPL-2.0-or-later | ||
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| lappend _telnet_autocomplete_skip "riscv set_enable_virtual" | ||
| proc {riscv set_enable_virtual} on_off { | ||
| echo {DEPRECATED! use 'riscv virt2phys_mode' not 'riscv set_enable_virtual'} | ||
| foreach t [target names] { | ||
| if {[$t cget -type] ne "riscv"} { continue } | ||
| switch -- [$t riscv virt2phys_mode] { | ||
| off - | ||
| hw { | ||
| switch -- $on_off { | ||
| on {$t riscv virt2phys_mode hw} | ||
| off {$t riscv virt2phys_mode off} | ||
| } | ||
| } | ||
| sw { | ||
| if {$on_off eq "on"} { | ||
| error {Can't enable virtual while translation driver is SW} | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return {} | ||
| } | ||
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| lappend _telnet_autocomplete_skip "riscv set_enable_virt2phys" | ||
| proc {riscv set_enable_virt2phys} on_off { | ||
| echo {DEPRECATED! use 'riscv virt2phys_mode' not 'riscv set_enable_virt2phys'} | ||
| foreach t [target names] { | ||
| if {[$t cget -type] ne "riscv"} { continue } | ||
| switch -- [riscv virt2phys_mode] { | ||
| off - | ||
| sw { | ||
| switch -- $on_off { | ||
| on {riscv virt2phys_mode sw} | ||
| off {riscv virt2phys_mode off} | ||
| } | ||
| } | ||
| hw { | ||
| if {$on_off eq "on"} { | ||
| error {Can't enable virt2phys while translation driver is HW} | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return {} | ||
| } | ||
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||
| proc riscv {cmd args} { | ||
| tailcall "riscv $cmd" {*}$args | ||
| } |