Commit Graph

5 Commits

Author SHA1 Message Date
Marcin Nowakowski
7c00edb9a2 target/mips: Fix SWM32 handling for microMIPS
SWM32 should store a sequence of 32-bit words from the GPRs, but it was
incorrectly coded to store 16-bit words only. As a result, an LWM32 that
usually follows would restore invalid register values.

Fixes: 7dd547e5ab ("target/mips: Use cpu_*_mmuidx_ra instead of
MMU_MODE*_SUFFIX")

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@fungible.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230216051717.3911212-3-marcin.nowakowski@fungible.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2023-03-08 00:37:41 +01:00
Philippe Mathieu-Daudé
23a04dcdf6 target/mips: Replace GET_LMASK64() macro by get_lmask(64) function
The target endianess information is stored in the BigEndian
bit of the Config0 register in CP0.

Replace the GET_LMASK() macro by an inlined get_lmask() function,
passing CPUMIPSState and the word size as argument.

We can remove another use of the TARGET_WORDS_BIGENDIAN definition.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210818215517.2560994-4-f4bug@amsat.org>
2021-08-25 13:02:14 +02:00
Philippe Mathieu-Daudé
4885b99a6e target/mips: Replace GET_LMASK() macro by get_lmask(32) function
The target endianess information is stored in the BigEndian
bit of the Config0 register in CP0.

Replace the GET_LMASK() macro by an inlined get_lmask() function,
passing CPUMIPSState and the word size as argument.

We can remove one use of the TARGET_WORDS_BIGENDIAN definition.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210818215517.2560994-3-f4bug@amsat.org>
2021-08-25 13:02:14 +02:00
Philippe Mathieu-Daudé
5b3cc34c34 target/mips: Call cpu_is_bigendian & inline GET_OFFSET in ld/st helpers
The target endianess information is stored in the BigEndian
bit of the Config0 register in CP0.

As a first step, inline the GET_OFFSET() macro, calling
cpu_is_bigendian() to get the 'direction' of the offset.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210818215517.2560994-2-f4bug@amsat.org>
2021-08-25 13:02:14 +02:00
Philippe Mathieu-Daudé
a2b0a27d33 target/mips: Move TCG source files under tcg/ sub directory
To ease maintenance, move all TCG specific files under the tcg/
sub-directory. Adapt the Meson machinery.

The following prototypes:
- mips_tcg_init()
- mips_cpu_do_unaligned_access()
- mips_cpu_do_transaction_failed()
can now be restricted to the "tcg-internal.h" header.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-29-f4bug@amsat.org>
2021-05-02 16:49:35 +02:00