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/*
* Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <stdbool.h>
#include <stddef.h>
#include <drivers/arm/smmu_v3.h>
#include <plat/arm/common/arm_config.h>
#include <platform_def.h>
#include <services/drtm_svc_plat.h>
bool plat_has_non_host_platforms(void)
{
/* Note: FVP base platforms typically have GPU, as per --list-instances. */
return true;
}
bool plat_has_unmanaged_dma_peripherals(void)
{
/*
* Note-LPT: As far as I can tell, RevC's --list-instances does not show
* devices that are described as DMA-capable but not managed by an SMMU
* in the FVP documentation.
* However, the SMMU seems to have only been introduced in the RevC
* revision.
*/
return !(arm_config.flags & ARM_CONFIG_FVP_HAS_SMMUV3);
}
unsigned int plat_get_total_num_smmus(void)
{
if ((arm_config.flags & ARM_CONFIG_FVP_HAS_SMMUV3)) {
return 1;
} else {
return 0;
}
}
static const uintptr_t smmus[] = {
PLAT_FVP_SMMUV3_BASE,
};
void plat_enumerate_smmus(const uintptr_t (*smmus_out)[],
size_t *smmu_count_out)
{
if ((arm_config.flags & ARM_CONFIG_FVP_HAS_SMMUV3)) {
*(const uintptr_t **)smmus_out = smmus;
*smmu_count_out = sizeof(smmus) / sizeof(uintptr_t);
} else {
*(const uintptr_t **)smmus_out = NULL;
*smmu_count_out = 0;
}
}
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