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irqchip/gic-v3-its: Register LPI tables with EFI config table 

Upon enabling a redistributor, let's register the allocated tables
with the EFI table that tracks the memory reservations.

Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Bhupesh Sharma <bhsharma@redhat.com>
Tested-by: Lei Zhang <zhang.lei@jp.fujitsu.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2018-07-27 16:21:18 +01:00
parent f842ca8e9c
commit 3fb68faee8
1 changed files with 12 additions and 0 deletions
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12
drivers/irqchip/irq-gic-v3-its.c
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@ -22,6 +22,7 @@
#include <linux/crash_dump.h>
#include <linux/delay.h>
#include <linux/dma-iommu.h>
#include <linux/efi.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/list.h>
@ -1628,6 +1629,14 @@ static void its_free_prop_table(struct page *prop_page)
get_order(LPI_PROPBASE_SZ));
}
static int gic_reserve_range(phys_addr_t addr, unsigned long size)
{
if (efi_enabled(EFI_CONFIG_TABLES))
return efi_mem_reserve_persistent(addr, size);
return 0;
}
static int __init its_setup_lpi_prop_table(void)
{
if (gic_rdists->flags & RDIST_FLAGS_RD_TABLES_PREALLOCATED) {
@ -1655,6 +1664,8 @@ static int __init its_setup_lpi_prop_table(void)
gic_rdists->prop_table_pa = page_to_phys(page);
gic_rdists->prop_table_va = page_address(page);
WARN_ON(gic_reserve_range(gic_rdists->prop_table_pa,
LPI_PROPBASE_SZ));
}
pr_info("GICv3: using LPI property table @%pa\n",
@ -2049,6 +2060,7 @@ static void its_cpu_init_lpis(void)
pend_page = gic_data_rdist()->pend_page;
paddr = page_to_phys(pend_page);
WARN_ON(gic_reserve_range(paddr, LPI_PENDBASE_SZ));
/* set PROPBASE */
val = (gic_rdists->prop_table_pa |