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Merge branch 'irq/gic-v4.1-fixes-5.7' into irq/irqchip-5.7

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This commit is contained in:
Marc Zyngier 2020-04-17 08:59:55 +01:00
commit 44a987d0a4
3 changed files with 29 additions and 4 deletions
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20
drivers/irqchip/irq-gic-v3-its.c
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@ -14,6 +14,7 @@
#include <linux/dma-iommu.h>
#include <linux/efi.h>
#include <linux/interrupt.h>
#include <linux/iopoll.h>
#include <linux/irqdomain.h>
#include <linux/list.h>
#include <linux/log2.h>
@ -3672,6 +3673,20 @@ out:
return IRQ_SET_MASK_OK_DONE;
}
static void its_wait_vpt_parse_complete(void)
{
void __iomem *vlpi_base = gic_data_rdist_vlpi_base();
u64 val;
if (!gic_rdists->has_vpend_valid_dirty)
return;
WARN_ON_ONCE(readq_relaxed_poll_timeout(vlpi_base + GICR_VPENDBASER,
val,
!(val & GICR_VPENDBASER_Dirty),
10, 500));
}
static void its_vpe_schedule(struct its_vpe *vpe)
{
void __iomem *vlpi_base = gic_data_rdist_vlpi_base();
@ -3702,6 +3717,8 @@ static void its_vpe_schedule(struct its_vpe *vpe)
val |= vpe->idai ? GICR_VPENDBASER_IDAI : 0;
val |= GICR_VPENDBASER_Valid;
gicr_write_vpendbaser(val, vlpi_base + GICR_VPENDBASER);
its_wait_vpt_parse_complete();
}
static void its_vpe_deschedule(struct its_vpe *vpe)
@ -3910,6 +3927,8 @@ static void its_vpe_4_1_schedule(struct its_vpe *vpe,
val |= FIELD_PREP(GICR_VPENDBASER_4_1_VPEID, vpe->vpe_id);
gicr_write_vpendbaser(val, vlpi_base + GICR_VPENDBASER);
its_wait_vpt_parse_complete();
}
static void its_vpe_4_1_deschedule(struct its_vpe *vpe,
@ -4035,6 +4054,7 @@ static int its_sgi_set_affinity(struct irq_data *d,
* not on the host (since they can only be targetting a vPE).
* Tell the kernel we've done whatever it asked for.
*/
irq_data_update_effective_affinity(d, mask_val);
return IRQ_SET_MASK_OK;
}

11
drivers/irqchip/irq-gic-v3.c
View File

@ -873,6 +873,7 @@ static int __gic_update_rdist_properties(struct redist_region *region,
gic_data.rdists.has_rvpeid &= !!(typer & GICR_TYPER_RVPEID);
gic_data.rdists.has_direct_lpi &= (!!(typer & GICR_TYPER_DirectLPIS) |
gic_data.rdists.has_rvpeid);
gic_data.rdists.has_vpend_valid_dirty &= !!(typer & GICR_TYPER_DIRTY);
/* Detect non-sensical configurations */
if (WARN_ON_ONCE(gic_data.rdists.has_rvpeid && !gic_data.rdists.has_vlpis)) {
@ -893,10 +894,11 @@ static void gic_update_rdist_properties(void)
if (WARN_ON(gic_data.ppi_nr == UINT_MAX))
gic_data.ppi_nr = 0;
pr_info("%d PPIs implemented\n", gic_data.ppi_nr);
pr_info("%sVLPI support, %sdirect LPI support, %sRVPEID support\n",
!gic_data.rdists.has_vlpis ? "no " : "",
!gic_data.rdists.has_direct_lpi ? "no " : "",
!gic_data.rdists.has_rvpeid ? "no " : "");
if (gic_data.rdists.has_vlpis)
pr_info("GICv4 features: %s%s%s\n",
gic_data.rdists.has_direct_lpi ? "DirectLPI " : "",
gic_data.rdists.has_rvpeid ? "RVPEID " : "",
gic_data.rdists.has_vpend_valid_dirty ? "Valid+Dirty " : "");
}
/* Check whether it's single security state view */
@ -1620,6 +1622,7 @@ static int __init gic_init_bases(void __iomem *dist_base,
gic_data.rdists.has_rvpeid = true;
gic_data.rdists.has_vlpis = true;
gic_data.rdists.has_direct_lpi = true;
gic_data.rdists.has_vpend_valid_dirty = true;
if (WARN_ON(!gic_data.domain) || WARN_ON(!gic_data.rdists.rdist)) {
err = -ENOMEM;

2
include/linux/irqchip/arm-gic-v3.h
View File

@ -243,6 +243,7 @@
#define GICR_TYPER_PLPIS (1U << 0)
#define GICR_TYPER_VLPIS (1U << 1)
#define GICR_TYPER_DIRTY (1U << 2)
#define GICR_TYPER_DirectLPIS (1U << 3)
#define GICR_TYPER_LAST (1U << 4)
#define GICR_TYPER_RVPEID (1U << 7)
@ -686,6 +687,7 @@ struct rdists {
bool has_vlpis;
bool has_rvpeid;
bool has_direct_lpi;
bool has_vpend_valid_dirty;
};
struct irq_domain;