hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

iommu/ipmmu-vmsa: Don't truncate ttbr if LPAE is not enabled 

If CONFIG_PHYS_ADDR_T_64BIT=n:

    drivers/iommu/ipmmu-vmsa.c: In function 'ipmmu_domain_init_context':
    drivers/iommu/ipmmu-vmsa.c:434:2: warning: right shift count >= width of type
      ipmmu_ctx_write(domain, IMTTUBR0, ttbr >> 32);
      ^

As io_pgtable_cfg.arm_lpae_s1_cfg.ttbr[] is an array of u64s, assigning
it to a phys_addr_t may truncates it.  Make ttbr u64 to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Geert Uytterhoeven 2015-12-22 20:01:06 +01:00 committed by Joerg Roedel
parent 0a9afeda80
commit f64232eee6
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/ipmmu-vmsa.c
View File

@ -295,7 +295,7 @@ static struct iommu_gather_ops ipmmu_gather_ops = {
static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain) static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
{ {
phys_addr_t ttbr; u64 ttbr;
/* /*
* Allocate the page table operations. * Allocate the page table operations.