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Merge pull request #416 from davwan01/dw/css-common 

Allow CSS to redefine function `plat_arm_calc_core_pos`
This commit is contained in:
danh-arm 2015-10-28 09:50:21 +00:00
parent 368bb87b34 371d4399d1
commit ece32c4f1b
2 changed files with 15 additions and 6 deletions
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11
plat/arm/board/juno/aarch64/juno_helpers.S
View File

@ -37,7 +37,7 @@
.globl plat_reset_handler
.globl plat_arm_calc_core_pos
/* --------------------------------------------------------------------
* void plat_reset_handler(void);
@ -117,3 +117,12 @@ ret:
isb
ret
endfunc plat_reset_handler
/* -----------------------------------------------------
* unsigned int plat_arm_calc_core_pos(uint64_t mpidr)
* Helper function to calculate the core position.
* -----------------------------------------------------
*/
func plat_arm_calc_core_pos
b css_calc_core_pos_swap_cluster
endfunc plat_arm_calc_core_pos

10
plat/arm/css/common/aarch64/css_helpers.S
View File

@ -34,7 +34,7 @@
.weak plat_secondary_cold_boot_setup
.weak plat_get_my_entrypoint
.globl plat_arm_calc_core_pos
.globl css_calc_core_pos_swap_cluster
.weak plat_is_my_cpu_primary
/* -----------------------------------------------------
@ -73,20 +73,20 @@ func plat_get_my_entrypoint
endfunc plat_get_my_entrypoint
/* -----------------------------------------------------------
* unsigned int plat_arm_calc_core_pos(uint64_t mpidr)
* Function to calculate the core position by
* unsigned int css_calc_core_pos_swap_cluster(uint64_t mpidr)
* Utility function to calculate the core position by
* swapping the cluster order. This is necessary in order to
* match the format of the boot information passed by the SCP
* and read in plat_is_my_cpu_primary below.
* -----------------------------------------------------------
*/
func plat_arm_calc_core_pos
func css_calc_core_pos_swap_cluster
and x1, x0, #MPIDR_CPU_MASK
and x0, x0, #MPIDR_CLUSTER_MASK
eor x0, x0, #(1 << MPIDR_AFFINITY_BITS) // swap cluster order
add x0, x1, x0, LSR #6
ret
endfunc plat_arm_calc_core_pos
endfunc css_calc_core_pos_swap_cluster
/* -----------------------------------------------------
* unsigned int plat_is_my_cpu_primary (void);