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lib: sbi: Introduce simple heap allocator

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We provide simple heap allocator to manage the heap space provided
by OpenSBI firmware and platform.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
This commit is contained in:
Anup Patel
2023-04-18 18:38:21 +05:30
committed by Anup Patel
parent 5cf9a54016
commit 40d36a6673
4 changed files with 266 additions and 0 deletions
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15
lib/sbi/sbi_init.c
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@@ -17,6 +17,7 @@
#include <sbi/sbi_ecall.h>
#include <sbi/sbi_hart.h>
#include <sbi/sbi_hartmask.h>
#include <sbi/sbi_heap.h>
#include <sbi/sbi_hsm.h>
#include <sbi/sbi_ipi.h>
#include <sbi/sbi_irqchip.h>
@@ -118,6 +119,15 @@ static void sbi_boot_print_general(struct sbi_scratch *scratch)
sbi_printf("Firmware Size : %d KB\n",
(u32)(scratch->fw_size / 1024));
sbi_printf("Firmware RW Offset : 0x%lx\n", scratch->fw_rw_offset);
sbi_printf("Firmware RW Size : %d KB\n",
(u32)((scratch->fw_size - scratch->fw_rw_offset) / 1024));
sbi_printf("Firmware Heap Offset : 0x%lx\n", scratch->fw_heap_offset);
sbi_printf("Firmware Heap Size : "
"%d KB (total), %d KB (reserved), %d KB (used), %d KB (free)\n",
(u32)(scratch->fw_heap_size / 1024),
(u32)(sbi_heap_reserved_space() / 1024),
(u32)(sbi_heap_used_space() / 1024),
(u32)(sbi_heap_free_space() / 1024));
/* SBI details */
sbi_printf("Runtime SBI Version : %d.%d\n",
@@ -258,6 +268,11 @@ static void __noreturn init_coldboot(struct sbi_scratch *scratch, u32 hartid)
sbi_hart_hang();
/* Note: This has to be second thing in coldboot init sequence */
rc = sbi_heap_init(scratch);
if (rc)
sbi_hart_hang();
/* Note: This has to be the third thing in coldboot init sequence */
rc = sbi_domain_init(scratch, hartid);
if (rc)
sbi_hart_hang();