andrius
/
arm-trusted-firmware
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

refactor(gicv3): add helper function to get the limit of ESPI INTID 

Add helper function gicv3_get_espi_limit() to get the value of
(maximum extended SPI INTID + 1), so that some duplicated code can be
removed later.

Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Change-Id: I0355ca2647f872e8189add259f6c47d415494cce
This commit is contained in:
Heyi Guo 2021-01-20 18:50:16 +08:00
parent ed0f0a0968
commit 30524ff80a
2 changed files with 23 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/arm/gic/v3/gicv3_helpers.c
View File

@ -110,6 +110,28 @@ unsigned int gicv3_get_spi_limit(uintptr_t gicd_base)
return spi_limit;
}
#if GIC_EXT_INTID
/*******************************************************************************
* Helper function to get the maximum ESPI INTID + 1.
******************************************************************************/
unsigned int gicv3_get_espi_limit(uintptr_t gicd_base)
{
unsigned int typer_reg = gicd_read_typer(gicd_base);
/* Check if extended SPI range is implemented */
if ((typer_reg & TYPER_ESPI) != 0U) {
/*
* (maximum ESPI INTID + 1) is equal to
* 32 * (GICD_TYPER.ESPI_range + 1) + 4096
*/
return ((((typer_reg >> TYPER_ESPI_RANGE_SHIFT) &
TYPER_ESPI_RANGE_MASK) + 1U) << 5) + MIN_ESPI_ID;
}
return 0U;
}
#endif /* GIC_EXT_INTID */
/*******************************************************************************
* Helper function to configure the default attributes of (E)SPIs.
******************************************************************************/

1
drivers/arm/gic/v3/gicv3_private.h
View File

@ -234,6 +234,7 @@ void gicr_set_icfgr(uintptr_t base, unsigned int id, unsigned int cfg);
* Private GICv3 helper function prototypes
******************************************************************************/
unsigned int gicv3_get_spi_limit(uintptr_t gicd_base);
unsigned int gicv3_get_espi_limit(uintptr_t gicd_base);
void gicv3_spis_config_defaults(uintptr_t gicd_base);
void gicv3_ppi_sgi_config_defaults(uintptr_t gicr_base);
unsigned int gicv3_secure_ppi_sgi_config_props(uintptr_t gicr_base,