diff options
Diffstat (limited to 'payloads/libpayload/arch/arm64')
| -rw-r--r-- | payloads/libpayload/arch/arm64/Makefile.inc | 2 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/cache.c | 11 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/lib/Makefile.inc | 33 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/lib/cache.c | 93 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/lib/clock.c | 40 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/lib/pstate.c | 432 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/lib/sysctrl.c | 879 | ||||
| -rw-r--r-- | payloads/libpayload/arch/arm64/lib/tlb.c | 83 |
8 files changed, 1568 insertions, 5 deletions
diff --git a/payloads/libpayload/arch/arm64/Makefile.inc b/payloads/libpayload/arch/arm64/Makefile.inc index bb09b8f919..1c23a477a7 100644 --- a/payloads/libpayload/arch/arm64/Makefile.inc +++ b/payloads/libpayload/arch/arm64/Makefile.inc @@ -30,6 +30,8 @@ CFLAGS += -march=armv8-a arm64_asm_flags = +subdirs-y += lib/ + head.o-y += head.S libc-y += main.c sysinfo.c libc-y += timer.c coreboot.c util.S diff --git a/payloads/libpayload/arch/arm64/cache.c b/payloads/libpayload/arch/arm64/cache.c index 05d6fb20ca..e89d49e4c8 100644 --- a/payloads/libpayload/arch/arm64/cache.c +++ b/payloads/libpayload/arch/arm64/cache.c @@ -34,6 +34,7 @@ #include <stdint.h> #include <arch/cache.h> +#include <arch/lib_helpers.h> void tlb_invalidate_all(void) { @@ -60,7 +61,7 @@ unsigned int dcache_line_bytes(void) if (line_bytes) return line_bytes; - ccsidr = read_ccsidr(); + ccsidr = raw_read_ccsidr_el1(); /* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */ line_bytes = 1 << ((ccsidr & 0x7) + 2); /* words per line */ line_bytes *= sizeof(unsigned int); /* bytes per word */ @@ -126,18 +127,18 @@ void dcache_mmu_disable(void) uint32_t sctlr; dcache_clean_invalidate_all(); - sctlr = read_sctlr_el3(); + sctlr = raw_read_sctlr_el3(); sctlr &= ~(SCTLR_C | SCTLR_M); - write_sctlr_el3(sctlr); + raw_write_sctlr_el3(sctlr); } void dcache_mmu_enable(void) { uint32_t sctlr; - sctlr = read_sctlr_el3(); + sctlr = raw_read_sctlr_el3(); sctlr |= SCTLR_C | SCTLR_M; - write_sctlr_el3(sctlr); + raw_write_sctlr_el3(sctlr); } void cache_sync_instructions(void) diff --git a/payloads/libpayload/arch/arm64/lib/Makefile.inc b/payloads/libpayload/arch/arm64/lib/Makefile.inc new file mode 100644 index 0000000000..a7b7f576b4 --- /dev/null +++ b/payloads/libpayload/arch/arm64/lib/Makefile.inc @@ -0,0 +1,33 @@ +##################################################################################### +## This file is part of the coreboot project. +## +## Copyright 2014 Google Inc. +## +## Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions +## are met: +## 1. Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## 2. Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in the +## documentation and/or other materials provided with the distribution. +## 3. The name of the author may not be used to endorse or promote products +## derived from this software without specific prior written permission. +## +## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +## SUCH DAMAGE. +## +##################################################################################### + +lib_access = pstate.c sysctrl.c cache.c tlb.c clock.c + +libc-y += $(lib_access)
\ No newline at end of file diff --git a/payloads/libpayload/arch/arm64/lib/cache.c b/payloads/libpayload/arch/arm64/lib/cache.c new file mode 100644 index 0000000000..53dff5759e --- /dev/null +++ b/payloads/libpayload/arch/arm64/lib/cache.c @@ -0,0 +1,93 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * cache.c: Cache Maintenance Instructions + * Reference: ARM Architecture Reference Manual, ARMv8-A edition + */ + +#include <stdint.h> + +#include <arch/lib_helpers.h> + +void dccisw(uint64_t cisw) +{ + __asm__ __volatile__("dc cisw, %0\n\t" : : "r" (cisw) :"memory"); +} + +void dccivac(uint64_t civac) +{ + __asm__ __volatile__("dc civac, %0\n\t" : : "r" (civac) :"memory"); +} + +void dccsw(uint64_t csw) +{ + __asm__ __volatile__("dc csw, %0\n\t" : : "r" (csw) :"memory"); +} + +void dccvac(uint64_t cvac) +{ + __asm__ __volatile__("dc cvac, %0\n\t" : : "r" (cvac) :"memory"); +} + +void dccvau(uint64_t cvau) +{ + __asm__ __volatile__("dc cvau, %0\n\t" : : "r" (cvau) :"memory"); +} + +void dcisw(uint64_t isw) +{ + __asm__ __volatile__("dc isw, %0\n\t" : : "r" (isw) :"memory"); +} + +void dcivac(uint64_t ivac) +{ + __asm__ __volatile__("dc ivac, %0\n\t" : : "r" (ivac) :"memory"); +} + +void dczva(uint64_t zva) +{ + __asm__ __volatile__("dc zva, %0\n\t" : : "r" (zva) :"memory"); +} + +void iciallu(void) +{ + __asm__ __volatile__("ic iallu\n\t" : : :"memory"); +} + +void icialluis(void) +{ + __asm__ __volatile__("ic ialluis\n\t" : : :"memory"); +} + +void icivau(uint64_t ivau) +{ + __asm__ __volatile__("ic ivau, %0\n\t" : : "r" (ivau) :"memory"); +} + + + diff --git a/payloads/libpayload/arch/arm64/lib/clock.c b/payloads/libpayload/arch/arm64/lib/clock.c new file mode 100644 index 0000000000..9f06f0828c --- /dev/null +++ b/payloads/libpayload/arch/arm64/lib/clock.c @@ -0,0 +1,40 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * clock.c: Functions for accessing clock and timer related registers + * Reference: ARM Architecture Reference Manual, ARMv8-A edition + */ + +#include <stdint.h> + +#include <arch/lib_helpers.h> + +void set_cntfrq(uint32_t freq) +{ + __asm__ __volatile__("msr cntfrq_el0, %0" :: "r"(freq)); +} diff --git a/payloads/libpayload/arch/arm64/lib/pstate.c b/payloads/libpayload/arch/arm64/lib/pstate.c new file mode 100644 index 0000000000..27554f7f1f --- /dev/null +++ b/payloads/libpayload/arch/arm64/lib/pstate.c @@ -0,0 +1,432 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Reference: ARM Architecture Reference Manual, ARMv8-A edition + * pstate.c: This file defines all the library functions for accessing + * PSTATE and special purpose registers + */ + +#include <stdint.h> + +#include <arch/lib_helpers.h> + +/* CurrentEL */ +uint32_t raw_read_current_el(void) +{ + uint32_t current_el; + + __asm__ __volatile__("mrs %0, CurrentEL\n\t" : "=r" (current_el) : : "memory"); + + return current_el; +} + +uint32_t get_current_el(void) +{ + uint32_t current_el = raw_read_current_el(); + return ((current_el >> CURRENT_EL_SHIFT) & CURRENT_EL_MASK); +} + +/* DAIF */ +uint32_t raw_read_daif(void) +{ + uint32_t daif; + + __asm__ __volatile__("mrs %0, DAIF\n\t" : "=r" (daif) : : "memory"); + + return daif; +} + +void raw_write_daif(uint32_t daif) +{ + __asm__ __volatile__("msr DAIF, %0\n\t" : : "r" (daif) : "memory"); +} + +void enable_debug_exceptions(void) +{ + __asm__ __volatile__("msr DAIFClr, %0\n\t" : : "i" (DAIF_DBG_BIT) : "memory"); +} + +void enable_serror_exceptions(void) +{ + __asm__ __volatile__("msr DAIFClr, %0\n\t" : : "i" (DAIF_ABT_BIT) : "memory"); +} + +void enable_irq(void) +{ + __asm__ __volatile__("msr DAIFClr, %0\n\t" : : "i" (DAIF_IRQ_BIT) : "memory"); +} + +void enable_fiq(void) +{ + __asm__ __volatile__("msr DAIFClr, %0\n\t" : : "i" (DAIF_FIQ_BIT) : "memory"); +} + +void disable_debug_exceptions(void) +{ + __asm__ __volatile__("msr DAIFSet, %0\n\t" : : "i" (DAIF_DBG_BIT) : "memory"); +} + +void disable_serror_exceptions(void) +{ + __asm__ __volatile__("msr DAIFSet, %0\n\t" : : "i" (DAIF_ABT_BIT) : "memory"); +} + +void disable_irq(void) +{ + __asm__ __volatile__("msr DAIFSet, %0\n\t" : : "i" (DAIF_IRQ_BIT) : "memory"); +} + +void disable_fiq(void) +{ + __asm__ __volatile__("msr DAIFSet, %0\n\t" : : "i" (DAIF_FIQ_BIT) : "memory"); +} + +/* DLR_EL0 */ +uint64_t raw_read_dlr_el0(void) +{ + uint64_t dlr_el0; + + __asm__ __volatile__("mrs %0, DLR_EL0\n\t" : "=r" (dlr_el0) : : "memory"); + + return dlr_el0; +} +void raw_write_dlr_el0(uint64_t dlr_el0) +{ + __asm__ __volatile__("msr DLR_EL0, %0\n\t" : : "r" (dlr_el0) : "memory"); +} + +/* DSPSR_EL0 */ +uint64_t raw_read_dspsr_el0(void) +{ + uint64_t dspsr_el0; + + __asm__ __volatile__("mrs %0, DSPSR_EL0\n\t" : "=r" (dspsr_el0) : : "memory"); + + return dspsr_el0; +} +void raw_write_dspsr_el0(uint64_t dspsr_el0) +{ + __asm__ __volatile__("msr DSPSR_EL0, %0\n\t" : : "r" (dspsr_el0) : "memory"); +} + +/* ELR */ +uint64_t raw_read_elr_el1(void) +{ + uint64_t elr_el1; + + __asm__ __volatile__("mrs %0, ELR_EL1\n\t" : "=r" (elr_el1) : : "memory"); + + return elr_el1; +} + +void raw_write_elr_el1(uint64_t elr_el1) +{ + __asm__ __volatile__("msr ELR_EL1, %0\n\t" : : "r" (elr_el1) : "memory"); +} + +uint64_t raw_read_elr_el2(void) +{ + uint64_t elr_el2; + + __asm__ __volatile__("mrs %0, ELR_EL2\n\t" : "=r" (elr_el2) : : "memory"); + + return elr_el2; +} + +void raw_write_elr_el2(uint64_t elr_el2) +{ + __asm__ __volatile__("msr ELR_EL2, %0\n\t" : : "r" (elr_el2) : "memory"); +} + +uint64_t raw_read_elr_el3(void) +{ + uint64_t elr_el3; + + __asm__ __volatile__("mrs %0, ELR_EL3\n\t" : "=r" (elr_el3) : : "memory"); + + return elr_el3; +} + +void raw_write_elr_el3(uint64_t elr_el3) +{ + __asm__ __volatile__("msr ELR_EL3, %0\n\t" : : "r" (elr_el3) : "memory"); +} + +uint64_t raw_read_elr_current(void) +{ + SWITCH_CASE_READ(raw_read_elr,elr,uint64_t); +} + +void raw_write_elr_current(uint64_t elr) +{ + SWITCH_CASE_WRITE(raw_write_elr,elr); +} + +/* FPCR */ +uint32_t raw_read_fpcr(void) +{ + uint32_t fpcr; + + __asm__ __volatile__("mrs %0, FPCR\n\t" : "=r" (fpcr) : : "memory"); + + return fpcr; +} + +void raw_write_fpcr(uint32_t fpcr) +{ + __asm__ __volatile__("msr FPCR, %0\n\t" : : "r" (fpcr) : "memory"); +} + +/* FPSR */ +uint32_t raw_read_fpsr(void) +{ + uint32_t fpsr; + + __asm__ __volatile__("mrs %0, FPSR\n\t" : "=r" (fpsr) : : "memory"); + + return fpsr; +} + +void raw_write_fpsr(uint32_t fpsr) +{ + __asm__ __volatile__("msr FPSR, %0\n\t" : : "r" (fpsr) : "memory"); +} + +/* NZCV */ +uint32_t raw_read_nzcv(void) +{ + uint32_t nzcv; + + __asm__ __volatile__("mrs %0, NZCV\n\t" : "=r" (nzcv) : : "memory"); + + return nzcv; +} + +void raw_write_nzcv(uint32_t nzcv) +{ + __asm__ __volatile__("msr NZCV, %0\n\t" : : "r" (nzcv) : "memory"); +} + +/* SP */ +uint64_t raw_read_sp_el0(void) +{ + uint64_t sp_el0; + + __asm__ __volatile__("mrs %0, SP_EL0\n\t" : "=r" (sp_el0) : : "memory"); + + return sp_el0; +} + +void raw_write_sp_el0(uint64_t sp_el0) +{ + __asm__ __volatile__("msr SP_EL0, %0\n\t" : : "r" (sp_el0) : "memory"); +} + +uint64_t raw_read_sp_el1(void) +{ + uint64_t sp_el1; + + __asm__ __volatile__("mrs %0, SP_EL1\n\t" : "=r" (sp_el1) : : "memory"); + + return sp_el1; +} + +void raw_write_sp_el1(uint64_t sp_el1) +{ + __asm__ __volatile__("msr SP_EL1, %0\n\t" : : "r" (sp_el1) : "memory"); +} + +uint64_t raw_read_sp_el2(void) +{ + uint64_t sp_el2; + + __asm__ __volatile__("mrs %0, SP_EL2\n\t" : "=r" (sp_el2) : : "memory"); + + return sp_el2; +} + +void raw_write_sp_el2(uint64_t sp_el2) +{ + __asm__ __volatile__("msr SP_EL2, %0\n\t" : : "r" (sp_el2) : "memory"); +} + +/* SPSel */ +uint32_t raw_read_spsel(void) +{ + uint32_t spsel; + + __asm__ __volatile__("mrs %0, SPSel\n\t" : "=r" (spsel) : : "memory"); + + return spsel; +} + +void raw_write_spsel(uint32_t spsel) +{ + __asm__ __volatile__("msr SPSel, %0\n\t" : : "r" (spsel) : "memory"); +} + +uint64_t raw_read_sp_el3(void) +{ + uint64_t sp_el3; + uint32_t spsel; + + spsel = raw_read_spsel(); + if (!spsel) + raw_write_spsel(1); + + __asm__ __volatile__("mov %0, sp\n\t" : "=r" (sp_el3) : : "memory"); + + if (!spsel) + raw_write_spsel(spsel); + + return sp_el3; +} + +void raw_write_sp_el3(uint64_t sp_el3) +{ + uint32_t spsel; + + spsel = raw_read_spsel(); + if (!spsel) + raw_write_spsel(1); + + __asm__ __volatile__("mov sp, %0\n\t" : "=r" (sp_el3) : : "memory"); + + if (!spsel) + raw_write_spsel(spsel); +} + +/* SPSR */ +uint32_t raw_read_spsr_abt(void) +{ + uint32_t spsr_abt; + + __asm__ __volatile__("mrs %0, SPSR_abt\n\t" : "=r" (spsr_abt) : : "memory"); + + return spsr_abt; +} + +void raw_write_spsr_abt(uint32_t spsr_abt) +{ + __asm__ __volatile__("msr SPSR_abt, %0\n\t" : : "r" (spsr_abt) : "memory"); +} + +uint32_t raw_read_spsr_el1(void) +{ + uint32_t spsr_el1; + + __asm__ __volatile__("mrs %0, SPSR_EL1\n\t" : "=r" (spsr_el1) : : "memory"); + + return spsr_el1; +} + +void raw_write_spsr_el1(uint32_t spsr_el1) +{ + __asm__ __volatile__("msr SPSR_EL1, %0\n\t" : : "r" (spsr_el1) : "memory"); +} + +uint32_t raw_read_spsr_el2(void) +{ + uint32_t spsr_el2; + + __asm__ __volatile__("mrs %0, SPSR_EL2\n\t" : "=r" (spsr_el2) : : "memory"); + + return spsr_el2; +} + +void raw_write_spsr_el2(uint32_t spsr_el2) +{ + __asm__ __volatile__("msr SPSR_EL2, %0\n\t" : : "r" (spsr_el2) : "memory"); +} + +uint32_t raw_read_spsr_el3(void) +{ + uint32_t spsr_el3; + + __asm__ __volatile__("mrs %0, SPSR_EL3\n\t" : "=r" (spsr_el3) : : "memory"); + + return spsr_el3; +} + +void raw_write_spsr_el3(uint32_t spsr_el3) +{ + __asm__ __volatile__("msr SPSR_EL3, %0\n\t" : : "r" (spsr_el3) : "memory"); +} + +uint32_t raw_read_spsr_current(void) +{ + SWITCH_CASE_READ(raw_read_spsr,spsr,uint32_t); +} + +void raw_write_spsr_current(uint32_t spsr) +{ + SWITCH_CASE_WRITE(raw_write_spsr,spsr); +} + +uint32_t raw_read_spsr_fiq(void) +{ + uint32_t spsr_fiq; + + __asm__ __volatile__("mrs %0, SPSR_fiq\n\t" : "=r" (spsr_fiq) : : "memory"); + + return spsr_fiq; +} + +void raw_write_spsr_fiq(uint32_t spsr_fiq) +{ + __asm__ __volatile__("msr SPSR_fiq, %0\n\t" : : "r" (spsr_fiq) : "memory"); +} + +uint32_t raw_read_spsr_irq(void) +{ + uint32_t spsr_irq; + + __asm__ __volatile__("mrs %0, SPSR_irq\n\t" : "=r" (spsr_irq) : : "memory"); + + return spsr_irq; +} + +void raw_write_spsr_irq(uint32_t spsr_irq) +{ + __asm__ __volatile__("msr SPSR_irq, %0\n\t" : : "r" (spsr_irq) : "memory"); +} + +uint32_t raw_read_spsr_und(void) +{ + uint32_t spsr_und; + + __asm__ __volatile__("mrs %0, SPSR_und\n\t" : "=r" (spsr_und) : : "memory"); + + return spsr_und; +} + +void raw_write_spsr_und(uint32_t spsr_und) +{ + __asm__ __volatile__("msr SPSR_und, %0\n\t" : : "r" (spsr_und) : "memory"); +} + diff --git a/payloads/libpayload/arch/arm64/lib/sysctrl.c b/payloads/libpayload/arch/arm64/lib/sysctrl.c new file mode 100644 index 0000000000..7e06e29658 --- /dev/null +++ b/payloads/libpayload/arch/arm64/lib/sysctrl.c @@ -0,0 +1,879 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * Reference: ARM Architecture Reference Manual, ARMv8-A edition + * sysctrl.c: This file defines all the library functions for accessing system + * control registers in Aarch64 + */ + +#include <stdint.h> + +#include <arch/lib_helpers.h> + +/* ACTLR */ +uint32_t raw_read_actlr_el1(void) +{ + uint32_t actlr_el1; + + __asm__ __volatile__("mrs %0, ACTLR_EL1\n\t" : "=r" (actlr_el1) : : "memory"); + + return actlr_el1; +} + +void raw_write_actlr_el1(uint32_t actlr_el1) +{ + __asm__ __volatile__("msr ACTLR_EL1, %0\n\t" : : "r" (actlr_el1) : "memory"); +} + +uint32_t raw_read_actlr_el2(void) +{ + uint32_t actlr_el2; + + __asm__ __volatile__("mrs %0, ACTLR_EL2\n\t" : "=r" (actlr_el2) : : "memory"); + + return actlr_el2; +} + +void raw_write_actlr_el2(uint32_t actlr_el2) +{ + __asm__ __volatile__("msr ACTLR_EL2, %0\n\t" : : "r" (actlr_el2) : "memory"); +} + +uint32_t raw_read_actlr_el3(void) +{ + uint32_t actlr_el3; + + __asm__ __volatile__("mrs %0, ACTLR_EL3\n\t" : "=r" (actlr_el3) : : "memory"); + + return actlr_el3; +} + +void raw_write_actlr_el3(uint32_t actlr_el3) +{ + __asm__ __volatile__("msr ACTLR_EL3, %0\n\t" : : "r" (actlr_el3) : "memory"); +} + +uint32_t raw_read_actlr_current(void) +{ + SWITCH_CASE_READ(raw_read_actlr,actlr,uint32_t); +} + +void raw_write_actlr_current(uint32_t actlr) +{ + SWITCH_CASE_WRITE(raw_write_actlr,actlr); +} + +/* AFSR0 */ +uint32_t raw_read_afsr0_el1(void) +{ + uint32_t afsr0_el1; + + __asm__ __volatile__("mrs %0, AFSR0_EL1\n\t" : "=r" (afsr0_el1) : : "memory"); + + return afsr0_el1; +} + +void raw_write_afsr0_el1(uint32_t afsr0_el1) +{ + __asm__ __volatile__("msr AFSR0_EL1, %0\n\t" : : "r" (afsr0_el1) : "memory"); +} + +uint32_t raw_read_afsr0_el2(void) +{ + uint32_t afsr0_el2; + + __asm__ __volatile__("mrs %0, AFSR0_EL2\n\t" : "=r" (afsr0_el2) : : "memory"); + + return afsr0_el2; +} + +void raw_write_afsr0_el2(uint32_t afsr0_el2) +{ + __asm__ __volatile__("msr AFSR0_EL2, %0\n\t" : : "r" (afsr0_el2) : "memory"); +} + +uint32_t raw_read_afsr0_el3(void) +{ + uint32_t afsr0_el3; + + __asm__ __volatile__("mrs %0, AFSR0_EL3\n\t" : "=r" (afsr0_el3) : : "memory"); + + return afsr0_el3; +} + +void raw_write_afsr0_el3(uint32_t afsr0_el3) +{ + __asm__ __volatile__("msr AFSR0_EL3, %0\n\t" : : "r" (afsr0_el3) : "memory"); +} + +uint32_t raw_read_afsr0_current(void) +{ + SWITCH_CASE_READ(raw_read_afsr0,afsr0,uint32_t); +} + +void raw_write_afsr0_current(uint32_t afsr0) +{ + SWITCH_CASE_WRITE(raw_write_afsr0,afsr0); +} + +/* AFSR1 */ +uint32_t raw_read_afsr1_el1(void) +{ + uint32_t afsr1_el1; + + __asm__ __volatile__("mrs %0, AFSR1_EL1\n\t" : "=r" (afsr1_el1) : : "memory"); + + return afsr1_el1; +} + +void raw_write_afsr1_el1(uint32_t afsr1_el1) +{ + __asm__ __volatile__("msr AFSR1_EL1, %0\n\t" : : "r" (afsr1_el1) : "memory"); +} + +uint32_t raw_read_afsr1_el2(void) +{ + uint32_t afsr1_el2; + + __asm__ __volatile__("mrs %0, AFSR1_EL2\n\t" : "=r" (afsr1_el2) : : "memory"); + + return afsr1_el2; +} + +void raw_write_afsr1_el2(uint32_t afsr1_el2) +{ + __asm__ __volatile__("msr AFSR1_EL2, %0\n\t" : : "r" (afsr1_el2) : "memory"); +} + +uint32_t raw_read_afsr1_el3(void) +{ + uint32_t afsr1_el3; + + __asm__ __volatile__("mrs %0, AFSR1_EL3\n\t" : "=r" (afsr1_el3) : : "memory"); + + return afsr1_el3; +} + +void raw_write_afsr1_el3(uint32_t afsr1_el3) +{ + __asm__ __volatile__("msr AFSR1_EL3, %0\n\t" : : "r" (afsr1_el3) : "memory"); +} + +uint32_t raw_read_afsr1_current(void) +{ + SWITCH_CASE_READ(raw_read_afsr1,afsr1,uint32_t); +} + +void raw_write_afsr1_current(uint32_t afsr1) +{ + SWITCH_CASE_WRITE(raw_write_afsr1,afsr1); +} + +/* AIDR */ +uint32_t raw_read_aidr_el1(void) +{ + uint32_t aidr_el1; + + __asm__ __volatile__("mrs %0, AIDR_EL1\n\t" : "=r" (aidr_el1) : : "memory"); + + return aidr_el1; +} + +/* AMAIR */ +uint64_t raw_read_amair_el1(void) +{ + uint64_t amair_el1; + + __asm__ __volatile__("mrs %0, AMAIR_EL1\n\t" : "=r" (amair_el1) : : "memory"); + + return amair_el1; +} + +void raw_write_amair_el1(uint64_t amair_el1) +{ + __asm__ __volatile__("msr AMAIR_EL1, %0\n\t" : : "r" (amair_el1) : "memory"); +} + +uint64_t raw_read_amair_el2(void) +{ + uint64_t amair_el2; + + __asm__ __volatile__("mrs %0, AMAIR_EL2\n\t" : "=r" (amair_el2) : : "memory"); + + return amair_el2; +} + +void raw_write_amair_el2(uint64_t amair_el2) +{ + __asm__ __volatile__("msr AMAIR_EL2, %0\n\t" : : "r" (amair_el2) : "memory"); +} + +uint64_t raw_read_amair_el3(void) +{ + uint64_t amair_el3; + + __asm__ __volatile__("mrs %0, AMAIR_EL3\n\t" : "=r" (amair_el3) : : "memory"); + + return amair_el3; +} + +void raw_write_amair_el3(uint64_t amair_el3) +{ + __asm__ __volatile__("msr AMAIR_EL3, %0\n\t" : : "r" (amair_el3) : "memory"); +} + +uint64_t raw_read_amair_current(void) +{ + SWITCH_CASE_READ(raw_read_amair,amair,uint64_t); +} + +void raw_write_amair_current(uint64_t amair) +{ + SWITCH_CASE_WRITE(raw_write_amair,amair); +} + +/* CCSIDR */ +uint32_t raw_read_ccsidr_el1(void) +{ + uint32_t ccsidr_el1; + + __asm__ __volatile__("mrs %0, CCSIDR_EL1\n\t" : "=r" (ccsidr_el1) : : "memory"); + + return ccsidr_el1; +} + +/* CLIDR */ +uint32_t raw_read_clidr_el1(void) +{ + uint32_t clidr_el1; + + __asm__ __volatile__("mrs %0, CLIDR_EL1\n\t" : "=r" (clidr_el1) : : "memory"); + + return clidr_el1; +} + +/* CPACR */ +uint32_t raw_read_cpacr_el1(void) +{ + uint32_t cpacr_el1; + + __asm__ __volatile__("mrs %0, CPACR_EL1\n\t" : "=r" (cpacr_el1) : : "memory"); + + return cpacr_el1; +} + +void raw_write_cpacr_el1(uint32_t cpacr_el1) +{ + __asm__ __volatile__("msr CPACR_EL1, %0\n\t" : : "r" (cpacr_el1) : "memory"); +} + +/* CPTR */ +uint32_t raw_read_cptr_el2(void) +{ + uint32_t cptr_el2; + + __asm__ __volatile__("mrs %0, CPTR_EL2\n\t" : "=r" (cptr_el2) : : "memory"); + + return cptr_el2; +} + +void raw_write_cptr_el2(uint32_t cptr_el2) +{ + __asm__ __volatile__("msr CPTR_EL2, %0\n\t" : : "r" (cptr_el2) : "memory"); +} + +uint32_t raw_read_cptr_el3(void) +{ + uint32_t cptr_el3; + + __asm__ __volatile__("mrs %0, CPTR_EL3\n\t" : "=r" (cptr_el3) : : "memory"); + + return cptr_el3; +} + +void raw_write_cptr_el3(uint32_t cptr_el3) +{ + __asm__ __volatile__("msr CPTR_EL3, %0\n\t" : : "r" (cptr_el3) : "memory"); +} + +/* CSSELR */ +uint32_t raw_read_csselr_el1(void) +{ + uint32_t csselr_el1; + + __asm__ __volatile__("mrs %0, CSSELR_EL1\n\t" : "=r" (csselr_el1) : : "memory"); + + return csselr_el1; +} + +void raw_write_csselr_el1(uint32_t csselr_el1) +{ + __asm__ __volatile__("msr CSSELR_EL1, %0\n\t" : : "r" (csselr_el1) : "memory"); +} + +/* CTR */ +uint32_t raw_read_ctr_el0(void) +{ + uint32_t ctr_el0; + + __asm__ __volatile__("mrs %0, CTR_EL0\n\t" : "=r" (ctr_el0) : : "memory"); + + return ctr_el0; +} + +/* ESR */ +uint32_t raw_read_esr_el1(void) +{ + uint32_t esr_el1; + + __asm__ __volatile__("mrs %0, ESR_EL1\n\t" : "=r" (esr_el1) : : "memory"); + + return esr_el1; +} + +void raw_write_esr_el1(uint32_t esr_el1) +{ + __asm__ __volatile__("msr ESR_EL1, %0\n\t" : : "r" (esr_el1) : "memory"); +} + +uint32_t raw_read_esr_el2(void) +{ + uint32_t esr_el2; + + __asm__ __volatile__("mrs %0, ESR_EL2\n\t" : "=r" (esr_el2) : : "memory"); + + return esr_el2; +} + +void raw_write_esr_el2(uint32_t esr_el2) +{ + __asm__ __volatile__("msr ESR_EL2, %0\n\t" : : "r" (esr_el2) : "memory"); +} + +uint32_t raw_read_esr_el3(void) +{ + uint32_t esr_el3; + + __asm__ __volatile__("mrs %0, ESR_EL3\n\t" : "=r" (esr_el3) : : "memory"); + + return esr_el3; +} + +void raw_write_esr_el3(uint32_t esr_el3) +{ + __asm__ __volatile__("msr ESR_EL3, %0\n\t" : : "r" (esr_el3) : "memory"); +} + +uint32_t raw_read_esr_current(void) +{ + SWITCH_CASE_READ(raw_read_esr,esr,uint32_t); +} + +void raw_write_esr_current(uint32_t esr) +{ + SWITCH_CASE_WRITE(raw_write_esr,esr); +} + +/* FAR */ +uint64_t raw_read_far_el1(void) +{ + uint64_t far_el1; + + __asm__ __volatile__("mrs %0, FAR_EL1\n\t" : "=r" (far_el1) : : "memory"); + + return far_el1; +} + +void raw_write_far_el1(uint64_t far_el1) +{ + __asm__ __volatile__("msr FAR_EL1, %0\n\t" : : "r" (far_el1) : "memory"); +} + +uint64_t raw_read_far_el2(void) +{ + uint64_t far_el2; + + __asm__ __volatile__("mrs %0, FAR_EL2\n\t" : "=r" (far_el2) : : "memory"); + + return far_el2; +} + +void raw_write_far_el2(uint64_t far_el2) +{ + __asm__ __volatile__("msr FAR_EL2, %0\n\t" : : "r" (far_el2) : "memory"); +} + +uint64_t raw_read_far_el3(void) +{ + uint64_t far_el3; + + __asm__ __volatile__("mrs %0, FAR_EL3\n\t" : "=r" (far_el3) : : "memory"); + + return far_el3; +} + +void raw_write_far_el3(uint64_t far_el3) +{ + __asm__ __volatile__("msr FAR_EL3, %0\n\t" : : "r" (far_el3) : "memory"); +} + +uint64_t raw_read_far_current(void) +{ + SWITCH_CASE_READ(raw_read_far,far,uint64_t); +} + +void raw_write_far_current(uint64_t far) +{ + SWITCH_CASE_WRITE(raw_write_far,far); +} + +/* HCR */ +uint64_t raw_read_hcr_el2(void) +{ + uint64_t hcr_el2; + + __asm__ __volatile__("mrs %0, HCR_EL2\n\t" : "=r" (hcr_el2) : : "memory"); + + return hcr_el2; +} + +void raw_write_hcr_el2(uint64_t hcr_el2) +{ + __asm__ __volatile__("msr HCR_EL2, %0\n\t" : : "r" (hcr_el2) : "memory"); +} + +/* AA64PFR0 */ +uint64_t raw_read_aa64pfr0_el1(void) +{ + uint64_t aa64pfr0_el1; + + __asm__ __volatile__("mrs %0, ID_AA64PFR0_EL1\n\t" : "=r" (aa64pfr0_el1) : : "memory"); + + return aa64pfr0_el1; +} + +/* MAIR */ +uint64_t raw_read_mair_el1(void) +{ + uint64_t mair_el1; + + __asm__ __volatile__("mrs %0, MAIR_EL1\n\t" : "=r" (mair_el1) : : "memory"); + + return mair_el1; +} + +void raw_write_mair_el1(uint64_t mair_el1) +{ + __asm__ __volatile__("msr MAIR_EL1, %0\n\t" : : "r" (mair_el1) : "memory"); +} + +uint64_t raw_read_mair_el2(void) +{ + uint64_t mair_el2; + + __asm__ __volatile__("mrs %0, MAIR_EL2\n\t" : "=r" (mair_el2) : : "memory"); + + return mair_el2; +} + +void raw_write_mair_el2(uint64_t mair_el2) +{ + __asm__ __volatile__("msr MAIR_EL2, %0\n\t" : : "r" (mair_el2) : "memory"); +} + +uint64_t raw_read_mair_el3(void) +{ + uint64_t mair_el3; + + __asm__ __volatile__("mrs %0, MAIR_EL3\n\t" : "=r" (mair_el3) : : "memory"); + + return mair_el3; +} + +void raw_write_mair_el3(uint64_t mair_el3) +{ + __asm__ __volatile__("msr MAIR_EL3, %0\n\t" : : "r" (mair_el3) : "memory"); +} + +uint64_t raw_read_mair_current(void) +{ + SWITCH_CASE_READ(raw_read_mair,mair,uint64_t); +} + +void raw_write_mair_current(uint64_t mair) +{ + SWITCH_CASE_WRITE(raw_write_mair,mair); +} + +/* MPIDR */ +uint64_t raw_read_mpidr_el1(void) +{ + uint64_t mpidr_el1; + + __asm__ __volatile__("mrs %0, MPIDR_EL1\n\t" : "=r" (mpidr_el1) : : "memory"); + + return mpidr_el1; +} + +/* RMR */ +uint32_t raw_read_rmr_el1(void) +{ + uint32_t rmr_el1; + + __asm__ __volatile__("mrs %0, RMR_EL1\n\t" : "=r" (rmr_el1) : : "memory"); + + return rmr_el1; +} + +void raw_write_rmr_el1(uint32_t rmr_el1) +{ + __asm__ __volatile__("msr RMR_EL1, %0\n\t" : : "r" (rmr_el1) : "memory"); +} + +uint32_t raw_read_rmr_el2(void) +{ + uint32_t rmr_el2; + + __asm__ __volatile__("mrs %0, RMR_EL2\n\t" : "=r" (rmr_el2) : : "memory"); + + return rmr_el2; +} + +void raw_write_rmr_el2(uint32_t rmr_el2) +{ + __asm__ __volatile__("msr RMR_EL2, %0\n\t" : : "r" (rmr_el2) : "memory"); +} + +uint32_t raw_read_rmr_el3(void) +{ + uint32_t rmr_el3; + + __asm__ __volatile__("mrs %0, RMR_EL3\n\t" : "=r" (rmr_el3) : : "memory"); + + return rmr_el3; +} + +void raw_write_rmr_el3(uint32_t rmr_el3) +{ + __asm__ __volatile__("msr RMR_EL3, %0\n\t" : : "r" (rmr_el3) : "memory"); +} + +uint32_t raw_read_rmr_current(void) +{ + SWITCH_CASE_READ(raw_read_rmr,rmr,uint32_t); +} + +void raw_write_rmr_current(uint32_t rmr) +{ + SWITCH_CASE_WRITE(raw_write_rmr,rmr); +} + +/* RVBAR */ +uint64_t raw_read_rvbar_el1(void) +{ + uint64_t rvbar_el1; + + __asm__ __volatile__("mrs %0, RVBAR_EL1\n\t" : "=r" (rvbar_el1) : : "memory"); + + return rvbar_el1; +} + +void raw_write_rvbar_el1(uint64_t rvbar_el1) +{ + __asm__ __volatile__("msr RVBAR_EL1, %0\n\t" : : "r" (rvbar_el1) : "memory"); +} + +uint64_t raw_read_rvbar_el2(void) +{ + uint64_t rvbar_el2; + + __asm__ __volatile__("mrs %0, RVBAR_EL2\n\t" : "=r" (rvbar_el2) : : "memory"); + + return rvbar_el2; +} + +void raw_write_rvbar_el2(uint64_t rvbar_el2) +{ + __asm__ __volatile__("msr RVBAR_EL2, %0\n\t" : : "r" (rvbar_el2) : "memory"); +} + +uint64_t raw_read_rvbar_el3(void) +{ + uint64_t rvbar_el3; + + __asm__ __volatile__("mrs %0, RVBAR_EL3\n\t" : "=r" (rvbar_el3) : : "memory"); + + return rvbar_el3; +} + +void raw_write_rvbar_el3(uint64_t rvbar_el3) +{ + __asm__ __volatile__("msr RVBAR_EL3, %0\n\t" : : "r" (rvbar_el3) : "memory"); +} + +uint64_t raw_read_rvbar_current(void) +{ + SWITCH_CASE_READ(raw_read_rvbar,rvbar,uint64_t); +} + +void raw_write_rvbar_current(uint64_t rvbar) +{ + SWITCH_CASE_WRITE(raw_write_rvbar,rvbar); +} + +/* SCR */ +uint32_t raw_read_scr_el3(void) +{ + uint32_t scr_el3; + + __asm__ __volatile__("mrs %0, SCR_EL3\n\t" : "=r" (scr_el3) : : "memory"); + + return scr_el3; +} + +void raw_write_scr_el3(uint32_t scr_el3) +{ + __asm__ __volatile__("msr SCR_EL3, %0\n\t" : : "r" (scr_el3) : "memory"); +} + +/* SCTLR */ +uint32_t raw_read_sctlr_el1(void) +{ + uint32_t sctlr_el1; + + __asm__ __volatile__("mrs %0, SCTLR_EL1\n\t" : "=r" (sctlr_el1) : : "memory"); + + return sctlr_el1; +} + +void raw_write_sctlr_el1(uint32_t sctlr_el1) +{ + __asm__ __volatile__("msr SCTLR_EL1, %0\n\t" : : "r" (sctlr_el1) : "memory"); +} + +uint32_t raw_read_sctlr_el2(void) +{ + uint32_t sctlr_el2; + + __asm__ __volatile__("mrs %0, SCTLR_EL2\n\t" : "=r" (sctlr_el2) : : "memory"); + + return sctlr_el2; +} + +void raw_write_sctlr_el2(uint32_t sctlr_el2) +{ + __asm__ __volatile__("msr SCTLR_EL2, %0\n\t" : : "r" (sctlr_el2) : "memory"); +} + +uint32_t raw_read_sctlr_el3(void) +{ + uint32_t sctlr_el3; + + __asm__ __volatile__("mrs %0, SCTLR_EL3\n\t" : "=r" (sctlr_el3) : : "memory"); + + return sctlr_el3; +} + +void raw_write_sctlr_el3(uint32_t sctlr_el3) +{ + __asm__ __volatile__("msr SCTLR_EL3, %0\n\t" : : "r" (sctlr_el3) : "memory"); +} + +uint32_t raw_read_sctlr_current(void) +{ + SWITCH_CASE_READ(raw_read_sctlr,sctlr,uint32_t); +} + +void raw_write_sctlr_current(uint32_t sctlr) +{ + SWITCH_CASE_WRITE(raw_write_sctlr,sctlr); +} + +/* TCR */ +uint64_t raw_read_tcr_el1(void) +{ + uint64_t tcr_el1; + + __asm__ __volatile__("mrs %0, TCR_EL1\n\t" : "=r" (tcr_el1) : : "memory"); + + return tcr_el1; +} + +void raw_write_tcr_el1(uint64_t tcr_el1) +{ + __asm__ __volatile__("msr TCR_EL1, %0\n\t" : : "r" (tcr_el1) : "memory"); +} + +uint32_t raw_read_tcr_el2(void) +{ + uint32_t tcr_el2; + + __asm__ __volatile__("mrs %0, TCR_EL2\n\t" : "=r" (tcr_el2) : : "memory"); + + return tcr_el2; +} + +void raw_write_tcr_el2(uint32_t tcr_el2) +{ + __asm__ __volatile__("msr TCR_EL2, %0\n\t" : : "r" (tcr_el2) : "memory"); +} + +uint32_t raw_read_tcr_el3(void) +{ + uint32_t tcr_el3; + + __asm__ __volatile__("mrs %0, TCR_EL3\n\t" : "=r" (tcr_el3) : : "memory"); + + return tcr_el3; +} + +void raw_write_tcr_el3(uint32_t tcr_el3) +{ + __asm__ __volatile__("msr TCR_EL3, %0\n\t" : : "r" (tcr_el3) : "memory"); +} + +/* TTBR0 */ +uint64_t raw_read_ttbr0_el1(void) +{ + uint64_t ttbr0_el1; + + __asm__ __volatile__("mrs %0, TTBR0_EL1\n\t" : "=r" (ttbr0_el1) : : "memory"); + + return ttbr0_el1; +} + +void raw_write_ttbr0_el1(uint64_t ttbr0_el1) +{ + __asm__ __volatile__("msr TTBR0_EL1, %0\n\t" : : "r" (ttbr0_el1) : "memory"); +} + +uint64_t raw_read_ttbr0_el2(void) +{ + uint64_t ttbr0_el2; + + __asm__ __volatile__("mrs %0, TTBR0_EL2\n\t" : "=r" (ttbr0_el2) : : "memory"); + + return ttbr0_el2; +} + +void raw_write_ttbr0_el2(uint64_t ttbr0_el2) +{ + __asm__ __volatile__("msr TTBR0_EL2, %0\n\t" : : "r" (ttbr0_el2) : "memory"); +} + +uint64_t raw_read_ttbr0_el3(void) +{ + uint64_t ttbr0_el3; + + __asm__ __volatile__("mrs %0, TTBR0_EL3\n\t" : "=r" (ttbr0_el3) : : "memory"); + + return ttbr0_el3; +} + +void raw_write_ttbr0_el3(uint64_t ttbr0_el3) +{ + __asm__ __volatile__("msr TTBR0_EL3, %0\n\t" : : "r" (ttbr0_el3) : "memory"); +} + +uint64_t raw_read_ttbr0_current(void) +{ + SWITCH_CASE_READ(raw_read_ttbr0,ttbr0,uint64_t); +} + +void raw_write_ttbr0_current(uint64_t ttbr0) +{ + SWITCH_CASE_WRITE(raw_write_ttbr0,ttbr0); +} + +/* TTBR1 */ +uint64_t raw_read_ttbr1_el1(void) +{ + uint64_t ttbr1_el1; + + __asm__ __volatile__("mrs %0, TTBR1_EL1\n\t" : "=r" (ttbr1_el1) : : "memory"); + + return ttbr1_el1; +} + +void raw_write_ttbr1_el1(uint64_t ttbr1_el1) +{ + __asm__ __volatile__("msr TTBR1_EL1, %0\n\t" : : "r" (ttbr1_el1) : "memory"); +} + +/* VBAR */ +uint64_t raw_read_vbar_el1(void) +{ + uint64_t vbar_el1; + + __asm__ __volatile__("mrs %0, VBAR_EL1\n\t" : "=r" (vbar_el1) : : "memory"); + + return vbar_el1; +} + +void raw_write_vbar_el1(uint64_t vbar_el1) +{ + __asm__ __volatile__("msr VBAR_EL1, %0\n\t" : : "r" (vbar_el1) : "memory"); +} + +uint64_t raw_read_vbar_el2(void) +{ + uint64_t vbar_el2; + + __asm__ __volatile__("mrs %0, VBAR_EL2\n\t" : "=r" (vbar_el2) : : "memory"); + + return vbar_el2; +} + +void raw_write_vbar_el2(uint64_t vbar_el2) +{ + __asm__ __volatile__("msr VBAR_EL2, %0\n\t" : : "r" (vbar_el2) : "memory"); +} + +uint64_t raw_read_vbar_el3(void) +{ + uint64_t vbar_el3; + + __asm__ __volatile__("mrs %0, VBAR_EL3\n\t" : "=r" (vbar_el3) : : "memory"); + + return vbar_el3; +} + +void raw_write_vbar_el3(uint64_t vbar_el3) +{ + __asm__ __volatile__("msr VBAR_EL3, %0\n\t" : : "r" (vbar_el3) : "memory"); +} + +uint64_t raw_read_vbar_current(void) +{ + SWITCH_CASE_READ(raw_read_vbar,vbar,uint64_t); +} + +void raw_write_vbar_current(uint64_t vbar) +{ + SWITCH_CASE_WRITE(raw_write_vbar,vbar); +} diff --git a/payloads/libpayload/arch/arm64/lib/tlb.c b/payloads/libpayload/arch/arm64/lib/tlb.c new file mode 100644 index 0000000000..d5afc1796b --- /dev/null +++ b/payloads/libpayload/arch/arm64/lib/tlb.c @@ -0,0 +1,83 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * tlb.c: System intructions for TLB maintenance. + * Reference: ARM Architecture Reference Manual, ARMv8-A edition + */ + +#include <stdint.h> + +#include <arch/lib_helpers.h> + +/* TLBIALL */ +void tlbiall_el1(void) +{ + __asm__ __volatile__("tlbi alle1\n\t" : : : "memory"); +} + +void tlbiall_el2(void) +{ + __asm__ __volatile__("tlbi alle2\n\t" : : : "memory"); +} + +void tlbiall_el3(void) +{ + __asm__ __volatile__("tlbi alle3\n\t" : : : "memory"); +} + +void tlbiall_current(void) +{ + SWITCH_CASE_TLBI(tlbiall); +} + +/* TLBIALLIS */ +void tlbiallis_el1(void) +{ + __asm__ __volatile__("tlbi alle1is\n\t" : : : "memory"); +} + +void tlbiallis_el2(void) +{ + __asm__ __volatile__("tlbi alle2is\n\t" : : : "memory"); +} + +void tlbiallis_el3(void) +{ + __asm__ __volatile__("tlbi alle3is\n\t" : : : "memory"); +} + +void tlbiallis_current(void) +{ + SWITCH_CASE_TLBI(tlbiallis); +} + +/* TLBIVAA */ +void tlbivaa_el1(uint64_t va) +{ + __asm__ __volatile__("tlbi vaae1, %0\n\t" : : "r" (va) : "memory"); +} |