lib: Move all coldboot wait APIs to sbi_init.c

The coldboot wait APIs are only used by sbi_init.c so no point in
having coldboot related code in sbi_hart.c.

As per-above rationale, we move all coldboot wait related APIs to
sbi_init.c as static/local functions.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 0 insertions, 70 deletions

diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index c00e16a..9017db1 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -377,73 +377,3 @@ struct sbi_scratch *sbi_hart_id_to_scratch(struct sbi_scratch *scratch,
 {
 	return ((h2s)scratch->hartid_to_scratch)(hartid);
 }
-
-#define COLDBOOT_WAIT_BITMAP_SIZE __riscv_xlen
-static spinlock_t coldboot_lock = SPIN_LOCK_INITIALIZER;
-static unsigned long coldboot_done = 0;
-static unsigned long coldboot_wait_bitmap = 0;
-
-void sbi_hart_wait_for_coldboot(struct sbi_scratch *scratch, u32 hartid)
-{
-	unsigned long saved_mie, cmip;
-	const struct sbi_platform *plat = sbi_platform_ptr(scratch);
-
-	if ((sbi_platform_hart_count(plat) <= hartid) ||
-	    (COLDBOOT_WAIT_BITMAP_SIZE <= hartid))
-		sbi_hart_hang();
-
-	/* Save MIE CSR */
-	saved_mie = csr_read(CSR_MIE);
-
-	/* Set MSIE bit to receive IPI */
-	csr_set(CSR_MIE, MIP_MSIP);
-
-	/* Acquire coldboot lock */
-	spin_lock(&coldboot_lock);
-
-	/* Mark current HART as waiting */
-	coldboot_wait_bitmap |= (1UL << hartid);
-
-	/* Wait for coldboot to finish using WFI */
-	while (!coldboot_done) {
-		spin_unlock(&coldboot_lock);
-		do {
-			wfi();
-			cmip = csr_read(CSR_MIP);
-		} while (!(cmip & MIP_MSIP));
-		spin_lock(&coldboot_lock);
-	};
-
-	/* Unmark current HART as waiting */
-	coldboot_wait_bitmap &= ~(1UL << hartid);
-
-	/* Release coldboot lock */
-	spin_unlock(&coldboot_lock);
-
-	/* Restore MIE CSR */
-	csr_write(CSR_MIE, saved_mie);
-
-	/* Clear current HART IPI */
-	sbi_platform_ipi_clear(plat, hartid);
-}
-
-void sbi_hart_wake_coldboot_harts(struct sbi_scratch *scratch, u32 hartid)
-{
-	const struct sbi_platform *plat = sbi_platform_ptr(scratch);
-	int max_hart			= sbi_platform_hart_count(plat);
-
-	/* Acquire coldboot lock */
-	spin_lock(&coldboot_lock);
-
-	/* Mark coldboot done */
-	coldboot_done = 1;
-
-	/* Send an IPI to all HARTs waiting for coldboot */
-	for (int i = 0; i < max_hart; i++) {
-		if ((i != hartid) && (coldboot_wait_bitmap & (1UL << i)))
-			sbi_platform_ipi_send(plat, i);
-	}
-
-	/* Release coldboot lock */
-	spin_unlock(&coldboot_lock);
-}