u-boot/arch/arm/lib/asm-offsets.c
Abdellatif El Khlifi d998735179 arm64: smccc: add support for SMCCCv1.2 x0-x17 registers
add support for x0-x17 registers used by the SMC calls

In SMCCC v1.2 [1] arguments are passed in registers x1-x17.
Results are returned in x0-x17.

This work is inspired from the following kernel commit:

arm64: smccc: Add support for SMCCCv1.2 extended input/output registers

[1]: https://documentation-service.arm.com/static/5f8edaeff86e16515cdbe4c6?token=

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2023-08-08 10:22:03 -04:00

112 lines
4.6 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
*
* This program is used to generate definitions needed by
* assembly language modules.
*
* We use the technique used in the OSF Mach kernel code:
* generate asm statements containing #defines,
* compile this file to assembler, and then extract the
* #defines from the assembly-language output.
*
* Copyright 2022-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* Authors:
* Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
*/
#include <common.h>
#include <linux/kbuild.h>
#include <linux/arm-smccc.h>
#if defined(CONFIG_MX51) || defined(CONFIG_MX53)
#include <asm/arch/imx-regs.h>
#endif
int main(void)
{
/*
* TODO : Check if each entry in this file is really necessary.
* - struct esdramc_regs
* - struct max_regs
* - struct aips_regs
* - struct aipi_regs
* - struct clkctl
* - struct dpll
* are used only for generating asm-offsets.h.
* It means their offset addresses are referenced only from assembly
* code. Is it better to define the macros directly in headers?
*/
#if defined(CONFIG_MX51) || defined(CONFIG_MX53)
/* Round up to make sure size gives nice stack alignment */
DEFINE(CLKCTL_CCMR, offsetof(struct clkctl, ccr));
DEFINE(CLKCTL_CCDR, offsetof(struct clkctl, ccdr));
DEFINE(CLKCTL_CSR, offsetof(struct clkctl, csr));
DEFINE(CLKCTL_CCSR, offsetof(struct clkctl, ccsr));
DEFINE(CLKCTL_CACRR, offsetof(struct clkctl, cacrr));
DEFINE(CLKCTL_CBCDR, offsetof(struct clkctl, cbcdr));
DEFINE(CLKCTL_CBCMR, offsetof(struct clkctl, cbcmr));
DEFINE(CLKCTL_CSCMR1, offsetof(struct clkctl, cscmr1));
DEFINE(CLKCTL_CSCMR2, offsetof(struct clkctl, cscmr2));
DEFINE(CLKCTL_CSCDR1, offsetof(struct clkctl, cscdr1));
DEFINE(CLKCTL_CS1CDR, offsetof(struct clkctl, cs1cdr));
DEFINE(CLKCTL_CS2CDR, offsetof(struct clkctl, cs2cdr));
DEFINE(CLKCTL_CDCDR, offsetof(struct clkctl, cdcdr));
DEFINE(CLKCTL_CHSCCDR, offsetof(struct clkctl, chsccdr));
DEFINE(CLKCTL_CSCDR2, offsetof(struct clkctl, cscdr2));
DEFINE(CLKCTL_CSCDR3, offsetof(struct clkctl, cscdr3));
DEFINE(CLKCTL_CSCDR4, offsetof(struct clkctl, cscdr4));
DEFINE(CLKCTL_CWDR, offsetof(struct clkctl, cwdr));
DEFINE(CLKCTL_CDHIPR, offsetof(struct clkctl, cdhipr));
DEFINE(CLKCTL_CDCR, offsetof(struct clkctl, cdcr));
DEFINE(CLKCTL_CTOR, offsetof(struct clkctl, ctor));
DEFINE(CLKCTL_CLPCR, offsetof(struct clkctl, clpcr));
DEFINE(CLKCTL_CISR, offsetof(struct clkctl, cisr));
DEFINE(CLKCTL_CIMR, offsetof(struct clkctl, cimr));
DEFINE(CLKCTL_CCOSR, offsetof(struct clkctl, ccosr));
DEFINE(CLKCTL_CGPR, offsetof(struct clkctl, cgpr));
DEFINE(CLKCTL_CCGR0, offsetof(struct clkctl, ccgr0));
DEFINE(CLKCTL_CCGR1, offsetof(struct clkctl, ccgr1));
DEFINE(CLKCTL_CCGR2, offsetof(struct clkctl, ccgr2));
DEFINE(CLKCTL_CCGR3, offsetof(struct clkctl, ccgr3));
DEFINE(CLKCTL_CCGR4, offsetof(struct clkctl, ccgr4));
DEFINE(CLKCTL_CCGR5, offsetof(struct clkctl, ccgr5));
DEFINE(CLKCTL_CCGR6, offsetof(struct clkctl, ccgr6));
DEFINE(CLKCTL_CMEOR, offsetof(struct clkctl, cmeor));
#if defined(CONFIG_MX53)
DEFINE(CLKCTL_CCGR7, offsetof(struct clkctl, ccgr7));
#endif
/* DPLL */
DEFINE(PLL_DP_CTL, offsetof(struct dpll, dp_ctl));
DEFINE(PLL_DP_CONFIG, offsetof(struct dpll, dp_config));
DEFINE(PLL_DP_OP, offsetof(struct dpll, dp_op));
DEFINE(PLL_DP_MFD, offsetof(struct dpll, dp_mfd));
DEFINE(PLL_DP_MFN, offsetof(struct dpll, dp_mfn));
DEFINE(PLL_DP_HFS_OP, offsetof(struct dpll, dp_hfs_op));
DEFINE(PLL_DP_HFS_MFD, offsetof(struct dpll, dp_hfs_mfd));
DEFINE(PLL_DP_HFS_MFN, offsetof(struct dpll, dp_hfs_mfn));
#endif
#ifdef CONFIG_ARM_SMCCC
DEFINE(ARM_SMCCC_RES_X0_OFFS, offsetof(struct arm_smccc_res, a0));
DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2));
DEFINE(ARM_SMCCC_QUIRK_ID_OFFS, offsetof(struct arm_smccc_quirk, id));
DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS, offsetof(struct arm_smccc_quirk, state));
#ifdef CONFIG_ARM64
DEFINE(ARM_SMCCC_1_2_REGS_X0_OFFS, offsetof(struct arm_smccc_1_2_regs, a0));
DEFINE(ARM_SMCCC_1_2_REGS_X2_OFFS, offsetof(struct arm_smccc_1_2_regs, a2));
DEFINE(ARM_SMCCC_1_2_REGS_X4_OFFS, offsetof(struct arm_smccc_1_2_regs, a4));
DEFINE(ARM_SMCCC_1_2_REGS_X6_OFFS, offsetof(struct arm_smccc_1_2_regs, a6));
DEFINE(ARM_SMCCC_1_2_REGS_X8_OFFS, offsetof(struct arm_smccc_1_2_regs, a8));
DEFINE(ARM_SMCCC_1_2_REGS_X10_OFFS, offsetof(struct arm_smccc_1_2_regs, a10));
DEFINE(ARM_SMCCC_1_2_REGS_X12_OFFS, offsetof(struct arm_smccc_1_2_regs, a12));
DEFINE(ARM_SMCCC_1_2_REGS_X14_OFFS, offsetof(struct arm_smccc_1_2_regs, a14));
DEFINE(ARM_SMCCC_1_2_REGS_X16_OFFS, offsetof(struct arm_smccc_1_2_regs, a16));
#endif
#endif
return 0;
}