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2021-05-02target/mips: Move tlb_helper.c to tcg/sysemu/Philippe Mathieu-Daudé
Move tlb_helper.c to the tcg/sysemu/ subdir, along with the following 3 declarations to tcg-internal.h: - cpu_mips_tlb_flush() - cpu_mips_translate_address() - r4k_invalidate_tlb() Simplify tlb_helper.c #ifdef'ry because files in tcg/sysemu/ are only build when sysemu mode is configured. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-22-f4bug@amsat.org>
2021-05-02target/mips: Move physical addressing code to sysemu/physaddr.cPhilippe Mathieu-Daudé
Declare get_physical_address() with local scope and move it along with mips_cpu_get_phys_page_debug() to sysemu/physaddr.c new file. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-18-f4bug@amsat.org>
2021-05-02target/mips: Add simple user-mode mips_cpu_tlb_fill()Philippe Mathieu-Daudé
tlb_helper.c's #ifdef'ry hides a quite simple user-mode implementation of mips_cpu_tlb_fill(). Copy the user-mode implementation (without #ifdef'ry) to tcg/user/helper.c and simplify tlb_helper.c's #ifdef'ry. This will allow us to restrict tlb_helper.c to sysemu. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-15-f4bug@amsat.org>
2021-05-02target/mips: Add simple user-mode mips_cpu_do_interrupt()Philippe Mathieu-Daudé
The #ifdef'ry hides that the user-mode implementation of mips_cpu_do_interrupt() simply sets exception_index = EXCP_NONE. Add this simple implementation to tcg/user/tlb_helper.c, and the corresponding Meson machinery to build this file when user emulation is configured. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-14-f4bug@amsat.org>
2021-05-02target/mips: Merge do_translate_address into cpu_mips_translate_addressPhilippe Mathieu-Daudé
Currently cpu_mips_translate_address() calls raise_mmu_exception(), and do_translate_address() calls cpu_loop_exit_restore(). This API split is dangerous, we could call cpu_mips_translate_address without returning to the main loop. As there is only one caller, it is trivial (and safer) to merge do_translate_address() back to cpu_mips_translate_address(). Reported-by: Richard Henderson <richard.henderson@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210428170410.479308-10-f4bug@amsat.org>
2021-02-21target/mips: Remove unused 'rw' argument from page_table_walk_refill()Philippe Mathieu-Daudé
As the 'rw' argument is unused, remove it. Reported-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210220202026.2305667-1-f4bug@amsat.org>
2021-02-21target/mips: Let CPUMIPSTLBContext::map_address() take MMUAccessTypePhilippe Mathieu-Daudé
get_seg_physical_address() calls CPUMIPSTLBContext::map_address() handlers passing a MMUAccessType type. Update the prototype handlers to take a MMUAccessType argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-14-f4bug@amsat.org>
2021-02-21target/mips: Let get_seg*_physical_address() take MMUAccessType argPhilippe Mathieu-Daudé
get_physical_address() calls get_seg_physical_address() and get_segctl_physical_address() passing a MMUAccessType type. Let the prototypes use it as argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-13-f4bug@amsat.org>
2021-02-21target/mips: Let get_physical_address() take MMUAccessType argumentPhilippe Mathieu-Daudé
All these functions: - mips_cpu_get_phys_page_debug() - cpu_mips_translate_address() - mips_cpu_tlb_fill() - page_table_walk_refill() - walk_directory() call get_physical_address() passing a MMUAccessType type. Let the prototype use it as argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-12-f4bug@amsat.org>
2021-02-21target/mips: Let raise_mmu_exception() take MMUAccessType argumentPhilippe Mathieu-Daudé
Both mips_cpu_tlb_fill() and cpu_mips_translate_address() pass MMUAccessType to raise_mmu_exception(). Let the prototype use it as argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-11-f4bug@amsat.org>
2021-02-21target/mips: Let cpu_mips_translate_address() take MMUAccessType argPhilippe Mathieu-Daudé
The single caller, do_translate_address(), passes MMUAccessType to cpu_mips_translate_address(). Let the prototype use it as argument, as it is stricter than an integer. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-10-f4bug@amsat.org>
2021-02-21target/mips: Replace magic value by MMU_DATA_LOAD definitionPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-7-f4bug@amsat.org>
2021-02-21target/mips: Remove access_type argument from get_physical_address()Philippe Mathieu-Daudé
get_physical_address() doesn't use the 'access_type' argument, remove it to simplify. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-5-f4bug@amsat.org>
2021-02-21target/mips: Remove access_type arg from get_segctl_physical_address()Philippe Mathieu-Daudé
get_segctl_physical_address() doesn't use the 'access_type' argument, remove it to simplify. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-4-f4bug@amsat.org>
2021-02-21target/mips: Remove access_type argument from get_seg_physical_addressPhilippe Mathieu-Daudé
get_seg_physical_address() doesn't use the 'access_type' argument, remove it to simplify. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-3-f4bug@amsat.org>
2021-02-21target/mips: Remove access_type argument from map_address() handlerPhilippe Mathieu-Daudé
TLB map_address() handlers don't use the 'access_type' argument, remove it to simplify. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20210128144125.3696119-2-f4bug@amsat.org>
2021-01-14target/mips: Move mmu_init() functions to tlb_helper.cPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201206233949.3783184-15-f4bug@amsat.org>
2021-01-14target/mips: Rename helper.c as tlb_helper.cPhilippe Mathieu-Daudé
This file contains functions related to TLB management, rename it as 'tlb_helper.c'. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201206233949.3783184-13-f4bug@amsat.org>
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