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lib: sbi: Use heap for root domain creation
Let's use heap allocation in root domain creation instead of using a fixed size global array. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
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commit
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1 changed files with 34 additions and 11 deletions
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@ -11,6 +11,7 @@
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#include <sbi/sbi_console.h>
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#include <sbi/sbi_domain.h>
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#include <sbi/sbi_hartmask.h>
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#include <sbi/sbi_heap.h>
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#include <sbi/sbi_hsm.h>
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#include <sbi/sbi_math.h>
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#include <sbi/sbi_platform.h>
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@ -26,16 +27,13 @@ struct sbi_domain *hartid_to_domain_table[SBI_HARTMASK_MAX_BITS] = { 0 };
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static u32 domain_count = 0;
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static bool domain_finalized = false;
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static struct sbi_hartmask root_hmask = { 0 };
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#define ROOT_REGION_MAX 16
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static u32 root_memregs_count = 0;
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static struct sbi_domain_memregion root_memregs[ROOT_REGION_MAX + 1] = { 0 };
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struct sbi_domain root = {
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.name = "root",
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.possible_harts = &root_hmask,
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.regions = root_memregs,
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.possible_harts = NULL,
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.regions = NULL,
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.system_reset_allowed = true,
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.system_suspend_allowed = true,
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.fw_region_inited = false,
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@ -551,8 +549,7 @@ int sbi_domain_root_add_memregion(const struct sbi_domain_memregion *reg)
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const struct sbi_platform *plat = sbi_platform_thishart_ptr();
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/* Sanity checks */
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if (!reg || domain_finalized ||
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(root.regions != root_memregs) ||
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if (!reg || domain_finalized || !root.regions ||
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(ROOT_REGION_MAX <= root_memregs_count))
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return SBI_EINVAL;
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@ -567,10 +564,10 @@ int sbi_domain_root_add_memregion(const struct sbi_domain_memregion *reg)
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}
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/* Append the memregion to root memregions */
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nreg = &root_memregs[root_memregs_count];
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nreg = &root.regions[root_memregs_count];
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sbi_memcpy(nreg, reg, sizeof(*reg));
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root_memregs_count++;
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root_memregs[root_memregs_count].order = 0;
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root.regions[root_memregs_count].order = 0;
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/* Sort and optimize root regions */
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do {
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@ -700,6 +697,9 @@ int sbi_domain_finalize(struct sbi_scratch *scratch, u32 cold_hartid)
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int sbi_domain_init(struct sbi_scratch *scratch, u32 cold_hartid)
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{
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u32 i;
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int rc;
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struct sbi_hartmask *root_hmask;
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struct sbi_domain_memregion *root_memregs;
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const struct sbi_platform *plat = sbi_platform_ptr(scratch);
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if (scratch->fw_rw_offset == 0 ||
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@ -715,6 +715,21 @@ int sbi_domain_init(struct sbi_scratch *scratch, u32 cold_hartid)
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return SBI_EINVAL;
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}
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root_memregs = sbi_calloc(sizeof(*root_memregs), ROOT_REGION_MAX + 1);
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if (!root_memregs) {
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sbi_printf("%s: no memory for root regions\n", __func__);
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return SBI_ENOMEM;
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}
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root.regions = root_memregs;
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root_hmask = sbi_zalloc(sizeof(*root_hmask));
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if (!root_hmask) {
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sbi_printf("%s: no memory for root hartmask\n", __func__);
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sbi_free(root_memregs);
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return SBI_ENOMEM;
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}
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root.possible_harts = root_hmask;
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/* Root domain firmware memory region */
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sbi_domain_memregion_init(scratch->fw_start, scratch->fw_rw_offset,
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(SBI_DOMAIN_MEMREGION_M_READABLE |
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@ -751,8 +766,16 @@ int sbi_domain_init(struct sbi_scratch *scratch, u32 cold_hartid)
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for (i = 0; i < SBI_HARTMASK_MAX_BITS; i++) {
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if (sbi_platform_hart_invalid(plat, i))
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continue;
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sbi_hartmask_set_hart(i, &root_hmask);
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sbi_hartmask_set_hart(i, root_hmask);
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}
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return sbi_domain_register(&root, &root_hmask);
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/* Finally register the root domain */
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rc = sbi_domain_register(&root, root_hmask);
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if (rc) {
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sbi_free(root_hmask);
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sbi_free(root_memregs);
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return rc;
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}
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return 0;
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}
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