diff options
| author | Vladimir Murzin <vladimir.murzin@arm.com> | 2016-11-02 11:54:05 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2016-11-29 09:14:48 +0000 |
| commit | 328191c05ed72762c382bdb835607dd5bd56b0bc (patch) | |
| tree | 7e14b0e9d5386a835cd46d0c9751765acec82399 /drivers/irqchip | |
| parent | d524eaa2a8c08efcdf905acf07cfa770e481ca6b (diff) | |
| download | linux-328191c05ed72762c382bdb835607dd5bd56b0bc.tar.bz2 | |
irqchip/gic-v3-its: Specialise flush_dcache operation
It'd be better to switch to CMA... but before that done redirect
flush_dcache operation, so 32-bit implementation could be wired
latter.
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 312dd55dfaae..b2a6e7b0bf9a 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -37,7 +37,6 @@ #include <linux/irqchip.h> #include <linux/irqchip/arm-gic-v3.h> -#include <asm/cacheflush.h> #include <asm/cputype.h> #include <asm/exception.h> @@ -433,7 +432,7 @@ static void its_flush_cmd(struct its_node *its, struct its_cmd_block *cmd) * the ITS. */ if (its->flags & ITS_FLAGS_CMDQ_NEEDS_FLUSHING) - __flush_dcache_area(cmd, sizeof(*cmd)); + gic_flush_dcache_to_poc(cmd, sizeof(*cmd)); else dsb(ishst); } @@ -602,7 +601,7 @@ static void lpi_set_config(struct irq_data *d, bool enable) * Humpf... */ if (gic_rdists->flags & RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING) - __flush_dcache_area(cfg, sizeof(*cfg)); + gic_flush_dcache_to_poc(cfg, sizeof(*cfg)); else dsb(ishst); its_send_inv(its_dev, id); @@ -817,7 +816,7 @@ static int __init its_alloc_lpi_tables(void) LPI_PROPBASE_SZ); /* Make sure the GIC will observe the written configuration */ - __flush_dcache_area(page_address(gic_rdists->prop_page), LPI_PROPBASE_SZ); + gic_flush_dcache_to_poc(page_address(gic_rdists->prop_page), LPI_PROPBASE_SZ); return 0; } @@ -910,7 +909,7 @@ retry_baser: shr = tmp & GITS_BASER_SHAREABILITY_MASK; if (!shr) { cache = GITS_BASER_nC; - __flush_dcache_area(base, PAGE_ORDER_TO_SIZE(order)); + gic_flush_dcache_to_poc(base, PAGE_ORDER_TO_SIZE(order)); } goto retry_baser; } @@ -1102,7 +1101,7 @@ static void its_cpu_init_lpis(void) } /* Make sure the GIC will observe the zero-ed page */ - __flush_dcache_area(page_address(pend_page), LPI_PENDBASE_SZ); + gic_flush_dcache_to_poc(page_address(pend_page), LPI_PENDBASE_SZ); paddr = page_to_phys(pend_page); pr_info("CPU%d: using LPI pending table @%pa\n", @@ -1287,13 +1286,13 @@ static bool its_alloc_device_table(struct its_node *its, u32 dev_id) /* Flush Lvl2 table to PoC if hw doesn't support coherency */ if (!(baser->val & GITS_BASER_SHAREABILITY_MASK)) - __flush_dcache_area(page_address(page), baser->psz); + gic_flush_dcache_to_poc(page_address(page), baser->psz); table[idx] = cpu_to_le64(page_to_phys(page) | GITS_BASER_VALID); /* Flush Lvl1 entry to PoC if hw doesn't support coherency */ if (!(baser->val & GITS_BASER_SHAREABILITY_MASK)) - __flush_dcache_area(table + idx, GITS_LVL1_ENTRY_SIZE); + gic_flush_dcache_to_poc(table + idx, GITS_LVL1_ENTRY_SIZE); /* Ensure updated table contents are visible to ITS hardware */ dsb(sy); @@ -1340,7 +1339,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id, return NULL; } - __flush_dcache_area(itt, sz); + gic_flush_dcache_to_poc(itt, sz); dev->its = its; dev->itt = itt; |