On 11.01.24 12:48, Marco Felsch wrote:
> Use the dynamic optee memory base address for the early mapping if
> possible and fallback to the static mapping if the query failed.
>
> Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
This patch fails to apply on next.
> ---
> arch/arm/cpu/mmu_64.c | 14 ++++++++++++--
> arch/arm/mach-imx/esdctl.c | 4 ++++
> common/Makefile | 2 +-
> 3 files changed, 17 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/cpu/mmu_64.c b/arch/arm/cpu/mmu_64.c
> index c6ea63e655ad..69fd2218c1fc 100644
> --- a/arch/arm/cpu/mmu_64.c
> +++ b/arch/arm/cpu/mmu_64.c
> @@ -20,6 +20,7 @@
> #include <memory.h>
> #include <asm/system_info.h>
> #include <linux/pagemap.h>
> +#include <tee/optee.h>
>
> #include "mmu_64.h"
>
> @@ -297,6 +298,7 @@ void dma_flush_range(void *ptr, size_t size)
> void mmu_early_enable(unsigned long membase, unsigned long memsize)
> {
> int el;
> + u64 optee_membase;
> unsigned long ttb = arm_mem_ttb(membase + memsize);
>
> pr_debug("enabling MMU, ttb @ 0x%08lx\n", ttb);
> @@ -309,8 +311,16 @@ void mmu_early_enable(unsigned long membase, unsigned long memsize)
> memset((void *)ttb, 0, GRANULE_SIZE);
>
> early_remap_range(0, 1UL << (BITS_PER_VA - 1), MAP_UNCACHED);
> - early_remap_range(membase, memsize - OPTEE_SIZE, MAP_CACHED);
> - early_remap_range(membase + memsize - OPTEE_SIZE, OPTEE_SIZE, MAP_FAULT);
> +
> + if (optee_get_membase(&optee_membase)) {
> + /* Fallback and place OP-TEE at the memory end region */
> + early_remap_range(membase, memsize - OPTEE_SIZE, MAP_CACHED);
> + early_remap_range(membase + memsize - OPTEE_SIZE, OPTEE_SIZE, MAP_FAULT);
> + } else {
> + early_remap_range(membase, memsize, MAP_CACHED);
> + early_remap_range(optee_membase, OPTEE_SIZE, MAP_FAULT);
> + }
> +
> early_remap_range(PAGE_ALIGN_DOWN((uintptr_t)_stext), PAGE_ALIGN(_etext - _stext), MAP_CACHED);
>
> mmu_enable();
> diff --git a/arch/arm/mach-imx/esdctl.c b/arch/arm/mach-imx/esdctl.c
> index ac35a2de66f1..47c43d75ec75 100644
> --- a/arch/arm/mach-imx/esdctl.c
> +++ b/arch/arm/mach-imx/esdctl.c
> @@ -29,6 +29,8 @@
> #include <mach/imx/imx8m-regs.h>
> #include <mach/imx/imx7-regs.h>
> #include <mach/imx/imx9-regs.h>
> +#include <mach/imx/scratch.h>
> +#include <tee/optee.h>
>
> struct imx_esdctl_data {
> unsigned long base0;
> @@ -1004,6 +1006,8 @@ resource_size_t imx8m_barebox_earlymem_size(unsigned buswidth)
>
> static void __noreturn imx8m_barebox_entry(void *boarddata, unsigned buswidth)
> {
> + imx8m_init_scratch_space(buswidth, false);
> + optee_set_membase(imx8m_scratch_get_optee_hdr());
> barebox_arm_entry(MX8M_DDR_CSD1_BASE_ADDR,
> imx8m_barebox_earlymem_size(buswidth), boarddata);
> }
> diff --git a/common/Makefile b/common/Makefile
> index 7fb864f61480..c31cbab9e48f 100644
> --- a/common/Makefile
> +++ b/common/Makefile
> @@ -80,7 +80,7 @@ obj-$(CONFIG_BAREBOX_UPDATE_IMX_NAND_FCB) += imx-bbu-nand-fcb.o
> obj-$(CONFIG_BOOT) += boot.o
> obj-$(CONFIG_SERIAL_DEV_BUS) += serdev.o
> obj-$(CONFIG_USBGADGET_START) += usbgadget.o
> -pbl-$(CONFIG_PBL_OPTEE) += optee.o
> +obj-pbl-$(CONFIG_PBL_OPTEE) += optee.o
> obj-$(CONFIG_BOOTM_OPTEE) += optee.o
> obj-$(CONFIG_FASTBOOT_BASE) += fastboot.o
>
--
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