Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index 57dfc13..8ad576e 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -36,7 +36,7 @@
#include <linux/mm.h>
-struct start_info _xen_start_info;
+static struct start_info _xen_start_info;
struct start_info *xen_start_info = &_xen_start_info;
EXPORT_SYMBOL(xen_start_info);
@@ -150,7 +150,7 @@
pr_info("Xen: initializing cpu%d\n", cpu);
vcpup = per_cpu_ptr(xen_vcpu_info, cpu);
- info.mfn = virt_to_gfn(vcpup);
+ info.mfn = percpu_to_gfn(vcpup);
info.offset = xen_offset_in_page(vcpup);
err = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_info, xen_vcpu_nr(cpu),
@@ -158,7 +158,8 @@
BUG_ON(err);
per_cpu(xen_vcpu, cpu) = vcpup;
- xen_setup_runstate_info(cpu);
+ if (!xen_kernel_unmapped_at_usr())
+ xen_setup_runstate_info(cpu);
after_register_vcpu_info:
enable_percpu_irq(xen_events_irq, 0);
@@ -241,7 +242,6 @@
* see Documentation/devicetree/bindings/arm/xen.txt for the
* documentation of the Xen Device Tree format.
*/
-#define GRANT_TABLE_PHYSADDR 0
void __init xen_early_init(void)
{
of_scan_flat_dt(fdt_find_hyper_node, NULL);
@@ -386,7 +386,8 @@
return -EINVAL;
}
- xen_time_setup_guest();
+ if (!xen_kernel_unmapped_at_usr())
+ xen_time_setup_guest();
if (xen_initial_domain())
pvclock_gtod_register_notifier(&xen_pvclock_gtod_notifier);
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index 38fa917..467fa22 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/cpu.h>
-#include <linux/dma-noncoherent.h>
+#include <linux/dma-direct.h>
+#include <linux/dma-map-ops.h>
#include <linux/gfp.h>
#include <linux/highmem.h>
#include <linux/export.h>
@@ -15,6 +16,7 @@
#include <xen/interface/grant_table.h>
#include <xen/interface/memory.h>
#include <xen/page.h>
+#include <xen/xen-ops.h>
#include <xen/swiotlb-xen.h>
#include <asm/cacheflush.h>
@@ -23,11 +25,12 @@
unsigned long xen_get_swiotlb_free_pages(unsigned int order)
{
- struct memblock_region *reg;
+ phys_addr_t base;
gfp_t flags = __GFP_NOWARN|__GFP_KSWAPD_RECLAIM;
+ u64 i;
- for_each_memblock(memory, reg) {
- if (reg->base < (phys_addr_t)0xffffffff) {
+ for_each_mem_range(i, &base, NULL) {
+ if (base < (phys_addr_t)0xffffffff) {
if (IS_ENABLED(CONFIG_ZONE_DMA32))
flags |= __GFP_DMA32;
else
@@ -41,15 +44,18 @@
static bool hypercall_cflush = false;
/* buffers in highmem or foreign pages cannot cross page boundaries */
-static void dma_cache_maint(dma_addr_t handle, size_t size, u32 op)
+static void dma_cache_maint(struct device *dev, dma_addr_t handle,
+ size_t size, u32 op)
{
struct gnttab_cache_flush cflush;
- cflush.a.dev_bus_addr = handle & XEN_PAGE_MASK;
cflush.offset = xen_offset_in_page(handle);
cflush.op = op;
+ handle &= XEN_PAGE_MASK;
do {
+ cflush.a.dev_bus_addr = dma_to_phys(dev, handle);
+
if (size + cflush.offset > XEN_PAGE_SIZE)
cflush.length = XEN_PAGE_SIZE - cflush.offset;
else
@@ -58,7 +64,7 @@
HYPERVISOR_grant_table_op(GNTTABOP_cache_flush, &cflush, 1);
cflush.offset = 0;
- cflush.a.dev_bus_addr += cflush.length;
+ handle += cflush.length;
size -= cflush.length;
} while (size);
}
@@ -71,23 +77,19 @@
* dma-direct functions, otherwise we call the Xen specific version.
*/
void xen_dma_sync_for_cpu(struct device *dev, dma_addr_t handle,
- phys_addr_t paddr, size_t size, enum dma_data_direction dir)
+ size_t size, enum dma_data_direction dir)
{
- if (pfn_valid(PFN_DOWN(handle)))
- arch_sync_dma_for_cpu(dev, paddr, size, dir);
- else if (dir != DMA_TO_DEVICE)
- dma_cache_maint(handle, size, GNTTAB_CACHE_INVAL);
+ if (dir != DMA_TO_DEVICE)
+ dma_cache_maint(dev, handle, size, GNTTAB_CACHE_INVAL);
}
void xen_dma_sync_for_device(struct device *dev, dma_addr_t handle,
- phys_addr_t paddr, size_t size, enum dma_data_direction dir)
+ size_t size, enum dma_data_direction dir)
{
- if (pfn_valid(PFN_DOWN(handle)))
- arch_sync_dma_for_device(dev, paddr, size, dir);
- else if (dir == DMA_FROM_DEVICE)
- dma_cache_maint(handle, size, GNTTAB_CACHE_INVAL);
+ if (dir == DMA_FROM_DEVICE)
+ dma_cache_maint(dev, handle, size, GNTTAB_CACHE_INVAL);
else
- dma_cache_maint(handle, size, GNTTAB_CACHE_CLEAN);
+ dma_cache_maint(dev, handle, size, GNTTAB_CACHE_CLEAN);
}
bool xen_arch_need_swiotlb(struct device *dev,
@@ -95,7 +97,7 @@
dma_addr_t dev_addr)
{
unsigned int xen_pfn = XEN_PFN_DOWN(phys);
- unsigned int bfn = XEN_PFN_DOWN(dev_addr);
+ unsigned int bfn = XEN_PFN_DOWN(dma_to_phys(dev, dev_addr));
/*
* The swiotlb buffer should be used if
@@ -133,7 +135,7 @@
return;
}
-int __init xen_mm_init(void)
+static int __init xen_mm_init(void)
{
struct gnttab_cache_flush cflush;
if (!xen_initial_domain())