mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

irqchip fixes for Linux 5.10, take #2 

- Fix Exiu driver trigger type when using ACPI
 - Fix GICv3 ITS suspend/resume to use the in-kernel path
   at all times, sidestepping braindead firmware support
 -----BEGIN PGP SIGNATURE-----
 
 iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl+6Yf8PHG1hekBrZXJu
 ZWwub3JnAAoJECPQ0LrRPXpD/+QP/R6DppA5eVK98xAt/qXia0eUbady8pib/a+8
 UGKFJ8d5CPhaP/EuuUk1zcN4ry2WnRSXVxesVkEQMLu8nKLsgG8lEgojJAel+w92
 gEbLuVnWJz6kiW/P7NUR/B1mYCacbi5IY+v3hFcoa6XzHbNHulzidUIkAiVcq9E/
 aqr08O62BFcBWzxRaaK6om2gTI3oZvD+v/oHTfMzIA59oAQGmgUYnc0CUOjVR5Bl
 aGYsdq2RqkvSdQbb2oVMPW6Tb22cfUQT1TnY1JR+Q5a5vEqTu67bTs6rpviR2Fj8
 CepcmoYUFC1tDW/tfbj+PgdDoyE2rbFUYyYiPX74caMi6rgLvSf8t1zK+sh/Q6x7
 Lnriw6xRbCMtkIczM5A3OrMQ/PWdcxHkyNC/3x2+qkkZVOBbZJ+cSWsJm1d3yky+
 IuaOTP2UYnToc+/uGHLysqUAehnMsSZnOvuYUVE4RVgMfbJvOX7rZdV1m+pic1GE
 Rm4TudcWni9b+14rFae/lOXXGDmY725898TI3Nud8bjKvyYcTMDO+R201VNFgNcB
 m/cWvPhbYP5OLR2cnvbWx0bg4WeBOY3m4RFIPHb2gCiPcWECLSCBaDfm7BG0eQvN
 DMLFIDePsj74vXejQbe5Txo8+dCe5vZsuzLRdFYElq6pOXVMjBtxF4s7In7RnqNB
 NPNENkqY
 =IjDX
 -----END PGP SIGNATURE-----

Merge tag 'irqchip-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Fix Exiu driver trigger type when using ACPI

 - Fix GICv3 ITS suspend/resume to use the in-kernel path
   at all times, sidestepping braindead firmware support

Link: https://lore.kernel.org/r/20201122184752.553990-1-maz@kernel.org
This commit is contained in:
Thomas Gleixner 2020-11-25 00:56:28 +01:00
parent 418baf2c28 74cde1a533
commit 7032908cd5
2 changed files with 4 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/irqchip/irq-gic-v3-its.c
View File

@ -42,7 +42,6 @@
#define ITS_FLAGS_CMDQ_NEEDS_FLUSHING (1ULL << 0)
#define ITS_FLAGS_WORKAROUND_CAVIUM_22375 (1ULL << 1)
#define ITS_FLAGS_WORKAROUND_CAVIUM_23144 (1ULL << 2)
#define ITS_FLAGS_SAVE_SUSPEND_STATE (1ULL << 3)
#define RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING (1 << 0)
#define RDIST_FLAGS_RD_TABLES_PREALLOCATED (1 << 1)
@ -4741,9 +4740,6 @@ static int its_save_disable(void)
list_for_each_entry(its, &its_nodes, entry) {
void __iomem *base;
if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE))
continue;
base = its->base;
its->ctlr_save = readl_relaxed(base + GITS_CTLR);
err = its_force_quiescent(base);
@ -4762,9 +4758,6 @@ err:
list_for_each_entry_continue_reverse(its, &its_nodes, entry) {
void __iomem *base;
if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE))
continue;
base = its->base;
writel_relaxed(its->ctlr_save, base + GITS_CTLR);
}
@ -4784,9 +4777,6 @@ static void its_restore_enable(void)
void __iomem *base;
int i;
if (!(its->flags & ITS_FLAGS_SAVE_SUSPEND_STATE))
continue;
base = its->base;
/*
@ -4794,7 +4784,10 @@ static void its_restore_enable(void)
* don't restore it since writing to CBASER or BASER<n>
* registers is undefined according to the GIC v3 ITS
* Specification.
*
* Firmware resuming with the ITS enabled is terminally broken.
*/
WARN_ON(readl_relaxed(base + GITS_CTLR) & GITS_CTLR_ENABLE);
ret = its_force_quiescent(base);
if (ret) {
pr_err("ITS@%pa: failed to quiesce on resume: %d\n",
@ -5074,9 +5067,6 @@ static int __init its_probe_one(struct resource *res,
ctlr |= GITS_CTLR_ImDe;
writel_relaxed(ctlr, its->base + GITS_CTLR);
if (GITS_TYPER_HCC(typer))
its->flags |= ITS_FLAGS_SAVE_SUSPEND_STATE;
err = its_init_domain(handle, its);
if (err)
goto out_free_tables;

2
drivers/irqchip/irq-sni-exiu.c
View File

@ -136,7 +136,7 @@ static int exiu_domain_translate(struct irq_domain *domain,
if (fwspec->param_count != 2)
return -EINVAL;
*hwirq = fwspec->param[0];
*type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
*type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK;
}
return 0;
}