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qemu/target/hppa/helper.h

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target/hppa: Split address size from register size For system mode, we will need 64-bit virtual addresses even when we have 32-bit register sizes. Since the rest of QEMU equates TARGET_LONG_BITS with the address size, redefine everything related to register size in terms of a new TARGET_REGISTER_BITS. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 22:35:48 +03:00
#if TARGET_REGISTER_BITS == 64
# define dh_alias_tr i64
tcg: Remove dh_alias indirection for dh_typecode The dh_alias redirect is intended to handle TCG types as distinguished from C types. TCG does not distinguish signed int from unsigned int, because they are the same size. However, we need to retain this distinction for dh_typecode, lest we fail to extend abi types properly for the host call parameters. This bug was detected when running the 'arm' emulator on an s390 system. The s390 uses TCG_TARGET_EXTEND_ARGS which triggers code in tcg_gen_callN to extend 32 bit values to 64 bits; the incorrect sign data in the typemask for each argument caused the values to be extended as unsigned values. This simple program exhibits the problem: static volatile int num = -9; static volatile int den = -5; int main(void) { int quo = num / den; printf("num %d den %d quo %d\n", num, den, quo); exit(0); } When run on the broken qemu, this results in: num -9 den -5 quo 0 The correct result is: num -9 den -5 quo 1 Fixes: 7319d83a735 ("tcg: Combine dh_is_64bit and dh_is_signed to dh_typecode") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/876 Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Tested-by: Keith Packard <keithp@keithp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-17 04:06:22 +03:00
# define dh_typecode_tr dh_typecode_i64
target/hppa: Split address size from register size For system mode, we will need 64-bit virtual addresses even when we have 32-bit register sizes. Since the rest of QEMU equates TARGET_LONG_BITS with the address size, redefine everything related to register size in terms of a new TARGET_REGISTER_BITS. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 22:35:48 +03:00
#else
# define dh_alias_tr i32
tcg: Remove dh_alias indirection for dh_typecode The dh_alias redirect is intended to handle TCG types as distinguished from C types. TCG does not distinguish signed int from unsigned int, because they are the same size. However, we need to retain this distinction for dh_typecode, lest we fail to extend abi types properly for the host call parameters. This bug was detected when running the 'arm' emulator on an s390 system. The s390 uses TCG_TARGET_EXTEND_ARGS which triggers code in tcg_gen_callN to extend 32 bit values to 64 bits; the incorrect sign data in the typemask for each argument caused the values to be extended as unsigned values. This simple program exhibits the problem: static volatile int num = -9; static volatile int den = -5; int main(void) { int quo = num / den; printf("num %d den %d quo %d\n", num, den, quo); exit(0); } When run on the broken qemu, this results in: num -9 den -5 quo 0 The correct result is: num -9 den -5 quo 1 Fixes: 7319d83a735 ("tcg: Combine dh_is_64bit and dh_is_signed to dh_typecode") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/876 Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reported-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Tested-by: Keith Packard <keithp@keithp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-02-17 04:06:22 +03:00
# define dh_typecode_tr dh_typecode_i32
target/hppa: Split address size from register size For system mode, we will need 64-bit virtual addresses even when we have 32-bit register sizes. Since the rest of QEMU equates TARGET_LONG_BITS with the address size, redefine everything related to register size in terms of a new TARGET_REGISTER_BITS. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 22:35:48 +03:00
#endif
#define dh_ctype_tr target_ureg
target-hppa: Add framework and enable compilation This is just about the minimum required to enable compilation without actually executing any instructions. This contains the HPPACPU structure and the required callbacks, the gdbstub, the basic translation loop, and a translate_one function that always results in an illegal instruction. Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-15 22:26:14 +03:00
DEF_HELPER_2(excp, noreturn, env, int)
target/hppa: Split address size from register size For system mode, we will need 64-bit virtual addresses even when we have 32-bit register sizes. Since the rest of QEMU equates TARGET_LONG_BITS with the address size, redefine everything related to register size in terms of a new TARGET_REGISTER_BITS. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 22:35:48 +03:00
DEF_HELPER_FLAGS_2(tsv, TCG_CALL_NO_WG, void, env, tr)
DEF_HELPER_FLAGS_2(tcond, TCG_CALL_NO_WG, void, env, tr)
target-hppa: Add framework and enable compilation This is just about the minimum required to enable compilation without actually executing any instructions. This contains the HPPACPU structure and the required callbacks, the gdbstub, the basic translation loop, and a translate_one function that always results in an illegal instruction. Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-15 22:26:14 +03:00
target/hppa: Split address size from register size For system mode, we will need 64-bit virtual addresses even when we have 32-bit register sizes. Since the rest of QEMU equates TARGET_LONG_BITS with the address size, redefine everything related to register size in terms of a new TARGET_REGISTER_BITS. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 22:35:48 +03:00
DEF_HELPER_FLAGS_3(stby_b, TCG_CALL_NO_WG, void, env, tl, tr)
DEF_HELPER_FLAGS_3(stby_b_parallel, TCG_CALL_NO_WG, void, env, tl, tr)
DEF_HELPER_FLAGS_3(stby_e, TCG_CALL_NO_WG, void, env, tl, tr)
DEF_HELPER_FLAGS_3(stby_e_parallel, TCG_CALL_NO_WG, void, env, tl, tr)
target-hppa: Implement loads and stores Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-16 01:54:51 +03:00
target/hppa: Allow, but diagnose, LDCW aligned only mod 4 The PA-RISC 1.1 specification says that LDCW must be aligned mod 16 or the operation is undefined. However, real hardware only generates an unaligned access trap for unaligned mod 4. Match real hardware, but diagnose with GUEST_ERROR a violation of the specification. At the same time fix a bug in the initialization of mop, where the size was specified twice, and another to free the zero temporary. Tested-by: Helge Deller <deller@gmx.de> Reported-by: Helge Deller <deller@gmx.de> Suggested-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-17 04:46:38 +03:00
DEF_HELPER_FLAGS_1(ldc_check, TCG_CALL_NO_RWG, void, tl)
target/hppa: Implement PROBE for system mode Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-01-25 02:03:25 +03:00
DEF_HELPER_FLAGS_4(probe, TCG_CALL_NO_WG, tr, env, tl, i32, i32)
target-hppa: Implement system and memory-management insns Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-16 01:59:03 +03:00
target-hppa: Add framework and enable compilation This is just about the minimum required to enable compilation without actually executing any instructions. This contains the HPPACPU structure and the required callbacks, the gdbstub, the basic translation loop, and a translate_one function that always results in an illegal instruction. Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-15 22:26:14 +03:00
DEF_HELPER_FLAGS_1(loaded_fr0, TCG_CALL_NO_RWG, void, env)
target-hppa: Implement floating-point insns Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-16 02:04:19 +03:00
DEF_HELPER_FLAGS_2(fsqrt_s, TCG_CALL_NO_RWG, f32, env, f32)
DEF_HELPER_FLAGS_2(frnd_s, TCG_CALL_NO_RWG, f32, env, f32)
DEF_HELPER_FLAGS_3(fadd_s, TCG_CALL_NO_RWG, f32, env, f32, f32)
DEF_HELPER_FLAGS_3(fsub_s, TCG_CALL_NO_RWG, f32, env, f32, f32)
DEF_HELPER_FLAGS_3(fmpy_s, TCG_CALL_NO_RWG, f32, env, f32, f32)
DEF_HELPER_FLAGS_3(fdiv_s, TCG_CALL_NO_RWG, f32, env, f32, f32)
DEF_HELPER_FLAGS_2(fsqrt_d, TCG_CALL_NO_RWG, f64, env, f64)
DEF_HELPER_FLAGS_2(frnd_d, TCG_CALL_NO_RWG, f64, env, f64)
DEF_HELPER_FLAGS_3(fadd_d, TCG_CALL_NO_RWG, f64, env, f64, f64)
DEF_HELPER_FLAGS_3(fsub_d, TCG_CALL_NO_RWG, f64, env, f64, f64)
DEF_HELPER_FLAGS_3(fmpy_d, TCG_CALL_NO_RWG, f64, env, f64, f64)
DEF_HELPER_FLAGS_3(fdiv_d, TCG_CALL_NO_RWG, f64, env, f64, f64)
DEF_HELPER_FLAGS_2(fcnv_s_d, TCG_CALL_NO_RWG, f64, env, f32)
DEF_HELPER_FLAGS_2(fcnv_d_s, TCG_CALL_NO_RWG, f32, env, f64)
DEF_HELPER_FLAGS_2(fcnv_w_s, TCG_CALL_NO_RWG, f32, env, s32)
DEF_HELPER_FLAGS_2(fcnv_dw_s, TCG_CALL_NO_RWG, f32, env, s64)
DEF_HELPER_FLAGS_2(fcnv_w_d, TCG_CALL_NO_RWG, f64, env, s32)
DEF_HELPER_FLAGS_2(fcnv_dw_d, TCG_CALL_NO_RWG, f64, env, s64)
DEF_HELPER_FLAGS_2(fcnv_s_w, TCG_CALL_NO_RWG, s32, env, f32)
DEF_HELPER_FLAGS_2(fcnv_d_w, TCG_CALL_NO_RWG, s32, env, f64)
DEF_HELPER_FLAGS_2(fcnv_s_dw, TCG_CALL_NO_RWG, s64, env, f32)
DEF_HELPER_FLAGS_2(fcnv_d_dw, TCG_CALL_NO_RWG, s64, env, f64)
DEF_HELPER_FLAGS_2(fcnv_t_s_w, TCG_CALL_NO_RWG, s32, env, f32)
DEF_HELPER_FLAGS_2(fcnv_t_d_w, TCG_CALL_NO_RWG, s32, env, f64)
DEF_HELPER_FLAGS_2(fcnv_t_s_dw, TCG_CALL_NO_RWG, s64, env, f32)
DEF_HELPER_FLAGS_2(fcnv_t_d_dw, TCG_CALL_NO_RWG, s64, env, f64)
DEF_HELPER_FLAGS_2(fcnv_uw_s, TCG_CALL_NO_RWG, f32, env, i32)
DEF_HELPER_FLAGS_2(fcnv_udw_s, TCG_CALL_NO_RWG, f32, env, i64)
DEF_HELPER_FLAGS_2(fcnv_uw_d, TCG_CALL_NO_RWG, f64, env, i32)
DEF_HELPER_FLAGS_2(fcnv_udw_d, TCG_CALL_NO_RWG, f64, env, i64)
DEF_HELPER_FLAGS_2(fcnv_s_uw, TCG_CALL_NO_RWG, i32, env, f32)
DEF_HELPER_FLAGS_2(fcnv_d_uw, TCG_CALL_NO_RWG, i32, env, f64)
DEF_HELPER_FLAGS_2(fcnv_s_udw, TCG_CALL_NO_RWG, i64, env, f32)
DEF_HELPER_FLAGS_2(fcnv_d_udw, TCG_CALL_NO_RWG, i64, env, f64)
DEF_HELPER_FLAGS_2(fcnv_t_s_uw, TCG_CALL_NO_RWG, i32, env, f32)
DEF_HELPER_FLAGS_2(fcnv_t_d_uw, TCG_CALL_NO_RWG, i32, env, f64)
DEF_HELPER_FLAGS_2(fcnv_t_s_udw, TCG_CALL_NO_RWG, i64, env, f32)
DEF_HELPER_FLAGS_2(fcnv_t_d_udw, TCG_CALL_NO_RWG, i64, env, f64)
DEF_HELPER_FLAGS_5(fcmp_s, TCG_CALL_NO_RWG, void, env, f32, f32, i32, i32)
DEF_HELPER_FLAGS_5(fcmp_d, TCG_CALL_NO_RWG, void, env, f64, f64, i32, i32)
DEF_HELPER_FLAGS_4(fmpyfadd_s, TCG_CALL_NO_RWG, i32, env, i32, i32, i32)
DEF_HELPER_FLAGS_4(fmpynfadd_s, TCG_CALL_NO_RWG, i32, env, i32, i32, i32)
DEF_HELPER_FLAGS_4(fmpyfadd_d, TCG_CALL_NO_RWG, i64, env, i64, i64, i64)
DEF_HELPER_FLAGS_4(fmpynfadd_d, TCG_CALL_NO_RWG, i64, env, i64, i64, i64)
target/hppa: Implement the system mask instructions Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 17:44:30 +03:00
target/hppa: Implement the interval timer Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-12-29 04:50:14 +03:00
DEF_HELPER_FLAGS_0(read_interval_timer, TCG_CALL_NO_RWG, tr)
target/hppa: Implement the system mask instructions Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 17:44:30 +03:00
#ifndef CONFIG_USER_ONLY
target/hppa: Implement halt and reset instructions Real hardware would use an external device to control the power. But for the moment let's invent instructions in reserved space, to be used by our custom firmware. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-12-29 09:04:57 +03:00
DEF_HELPER_1(halt, noreturn, env)
DEF_HELPER_1(reset, noreturn, env)
hppa: Add support for an emulated TOC/NMI button. Almost all PA-RISC machines have either a button that is labeled with 'TOC' or a BMC/GSP function to trigger a TOC. TOC is a non-maskable interrupt that is sent to the processor. This can be used for diagnostic purposes like obtaining a stack trace/register dump or to enter KDB/KGDB in Linux. This patch adds support for such an emulated TOC button. It wires up the qemu monitor "nmi" command to trigger a TOC. For that it provides the hppa_nmi function which is assigned to the nmi_monitor_handler function pointer. When called it raises the EXCP_TOC hardware interrupt in the hppa_cpu_do_interrupt() function. The interrupt function then calls the architecturally defined TOC function in SeaBIOS-hppa firmware (at fixed address 0xf0000000). According to the PA-RISC PDC specification, the SeaBIOS firmware then writes the CPU registers into PIM (processor internal memmory) for later analysis. In order to write all registers it needs to know the contents of the CPU "shadow registers" and the IASQ- and IAOQ-back values. The IAOQ/IASQ values are provided by qemu in shadow registers when entering the SeaBIOS TOC function. This patch adds a new aritificial opcode "getshadowregs" (0xfffdead2) which restores the original values of the shadow registers. With this opcode SeaBIOS can store those registers as well into PIM before calling an OS-provided TOC handler. To trigger a TOC, switch to the qemu monitor with Ctrl-A C, and type in the command "nmi". After the TOC started the OS-debugger, exit the qemu monitor with Ctrl-A C. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-01-06 01:09:04 +03:00
DEF_HELPER_1(getshadowregs, void, env)
target/hppa: Implement rfi Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-11 18:54:49 +03:00
DEF_HELPER_1(rfi, void, env)
DEF_HELPER_1(rfi_r, void, env)
target/hppa: Implement the interval timer Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-12-29 04:50:14 +03:00
DEF_HELPER_FLAGS_2(write_interval_timer, TCG_CALL_NO_RWG, void, env, tr)
target/hppa: Implement external interrupts Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-12-29 04:36:45 +03:00
DEF_HELPER_FLAGS_2(write_eirr, TCG_CALL_NO_RWG, void, env, tr)
DEF_HELPER_FLAGS_2(write_eiem, TCG_CALL_NO_RWG, void, env, tr)
target/hppa: Implement the system mask instructions Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 17:44:30 +03:00
DEF_HELPER_FLAGS_2(swap_system_mask, TCG_CALL_NO_RWG, tr, env, tr)
target/hppa: Implement I*TLBA and I*TLBP insns The TLB can now be populated, but it cannot yet be cleared. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-27 17:26:36 +03:00
DEF_HELPER_FLAGS_3(itlba, TCG_CALL_NO_RWG, void, env, tl, tr)
DEF_HELPER_FLAGS_3(itlbp, TCG_CALL_NO_RWG, void, env, tl, tr)
target/hppa: Implement P*TLB and P*TLBE insns We now have all of the TLB manipulation instructions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-27 19:33:23 +03:00
DEF_HELPER_FLAGS_2(ptlb, TCG_CALL_NO_RWG, void, env, tl)
DEF_HELPER_FLAGS_1(ptlbe, TCG_CALL_NO_RWG, void, env)
target/hppa: Implement LPA Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-11-05 12:50:47 +03:00
DEF_HELPER_FLAGS_2(lpa, TCG_CALL_NO_WG, tr, env, tl)
target/hppa: add TLB protection id check Signed-off-by: Sven Schnelle <svens@stackframe.org> Message-Id: <20190311191602.25796-10-svens@stackframe.org> [rth: Add required tlb flushing when prot id registers change.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-03-11 22:16:00 +03:00
DEF_HELPER_FLAGS_1(change_prot_id, TCG_CALL_NO_RWG, void, env)
target/hppa: Wire up diag instruction to support BTLB Wire up the hppa diag instruction to support Block-TLBs when called with the 0x100 value. The diag_btlb() helper function does all necessary steps to emulate the PDC BTLB firmware function, which includes providing BTLB info, adding a new BTLB, deleting a BTLB and removing all BTLBs. Signed-off-by: Helge Deller <deller@gmx.de>
2023-09-13 12:25:09 +03:00
DEF_HELPER_1(diag_btlb, void, env)
target/hppa: Implement the system mask instructions Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-10-09 17:44:30 +03:00
#endif
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