summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/blackfin/Kconfig33
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S4
-rw-r--r--arch/blackfin/mach-bf518/include/mach/mem_map.h15
-rw-r--r--arch/blackfin/mach-bf527/include/mach/mem_map.h15
-rw-r--r--arch/blackfin/mach-bf533/include/mach/mem_map.h15
-rw-r--r--arch/blackfin/mach-bf537/include/mach/mem_map.h15
-rw-r--r--arch/blackfin/mach-bf538/include/mach/mem_map.h15
-rw-r--r--arch/blackfin/mach-bf548/include/mach/mem_map.h15
8 files changed, 123 insertions, 4 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 004c06ce319..3a468436258 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -200,6 +200,32 @@ config BF561
endchoice
+config SMP
+ depends on BF561
+ bool "Symmetric multi-processing support"
+ ---help---
+ This enables support for systems with more than one CPU,
+ like the dual core BF561. If you have a system with only one
+ CPU, say N. If you have a system with more than one CPU, say Y.
+
+ If you don't know what to do here, say N.
+
+config NR_CPUS
+ int
+ depends on SMP
+ default 2 if BF561
+
+config IRQ_PER_CPU
+ bool
+ depends on SMP
+ default y
+
+config TICK_SOURCE_SYSTMR0
+ bool
+ select BFIN_GPTIMERS
+ depends on SMP
+ default y
+
config BF_REV_MIN
int
default 0 if (BF51x || BF52x || BF54x)
@@ -502,6 +528,7 @@ source kernel/Kconfig.hz
config GENERIC_TIME
bool "Generic time"
+ depends on !SMP
default y
config GENERIC_CLOCKEVENTS
@@ -576,6 +603,7 @@ endmenu
menu "Blackfin Kernel Optimizations"
+ depends on !SMP
comment "Memory Optimizations"
@@ -738,7 +766,6 @@ config BFIN_INS_LOWOVERHEAD
endmenu
-
choice
prompt "Kernel executes from"
help
@@ -804,9 +831,11 @@ config BFIN_ICACHE_LOCK
choice
prompt "Policy"
depends on BFIN_DCACHE
- default BFIN_WB
+ default BFIN_WB if !SMP
+ default BFIN_WT if SMP
config BFIN_WB
bool "Write back"
+ depends on !SMP
help
Write Back Policy:
Cached data will be written back to SDRAM only when needed.
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 7d12c6692a6..2a485352ec1 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -109,7 +109,7 @@ SECTIONS
#endif
DATA_DATA
- *(.data.*)
+ *(.data)
CONSTRUCTORS
/* make sure the init_task is aligned to the
@@ -161,6 +161,7 @@ SECTIONS
*(.con_initcall.init)
___con_initcall_end = .;
}
+ PERCPU(4)
SECURITY_INIT
.init.ramfs :
{
@@ -236,7 +237,6 @@ SECTIONS
. = ALIGN(4);
__ebss_l2 = .;
}
-
/* Force trailing alignment of our init section so that when we
* free our init memory, we don't leave behind a partial page.
*/
diff --git a/arch/blackfin/mach-bf518/include/mach/mem_map.h b/arch/blackfin/mach-bf518/include/mach/mem_map.h
index 10f678f3c5c..ac95d334d08 100644
--- a/arch/blackfin/mach-bf518/include/mach/mem_map.h
+++ b/arch/blackfin/mach-bf518/include/mach/mem_map.h
@@ -99,4 +99,19 @@
#define L1_SCRATCH_START 0xFFB00000
#define L1_SCRATCH_LENGTH 0x1000
+#define get_l1_scratch_start_cpu(cpu) L1_SCRATCH_START
+#define get_l1_code_start_cpu(cpu) L1_CODE_START
+#define get_l1_data_a_start_cpu(cpu) L1_DATA_A_START
+#define get_l1_data_b_start_cpu(cpu) L1_DATA_B_START
+#define get_l1_scratch_start() L1_SCRATCH_START
+#define get_l1_code_start() L1_CODE_START
+#define get_l1_data_a_start() L1_DATA_A_START
+#define get_l1_data_b_start() L1_DATA_B_START
+
+#define GET_PDA_SAFE(preg) \
+ preg.l = _cpu_pda; \
+ preg.h = _cpu_pda;
+
+#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg)
+
#endif /* _MEM_MAP_518_H_ */
diff --git a/arch/blackfin/mach-bf527/include/mach/mem_map.h b/arch/blackfin/mach-bf527/include/mach/mem_map.h
index ef46dc991cd..bd7fe0fda9e 100644
--- a/arch/blackfin/mach-bf527/include/mach/mem_map.h
+++ b/arch/blackfin/mach-bf527/include/mach/mem_map.h
@@ -99,4 +99,19 @@
#define L1_SCRATCH_START 0xFFB00000
#define L1_SCRATCH_LENGTH 0x1000
+#define get_l1_scratch_start_cpu(cpu) L1_SCRATCH_START
+#define get_l1_code_start_cpu(cpu) L1_CODE_START
+#define get_l1_data_a_start_cpu(cpu) L1_DATA_A_START
+#define get_l1_data_b_start_cpu(cpu) L1_DATA_B_START
+#define get_l1_scratch_start() L1_SCRATCH_START
+#define get_l1_code_start() L1_CODE_START
+#define get_l1_data_a_start() L1_DATA_A_START
+#define get_l1_data_b_start() L1_DATA_B_START
+
+#define GET_PDA_SAFE(preg) \
+ preg.l = _cpu_pda; \
+ preg.h = _cpu_pda;
+
+#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg)
+
#endif /* _MEM_MAP_527_H_ */
diff --git a/arch/blackfin/mach-bf533/include/mach/mem_map.h b/arch/blackfin/mach-bf533/include/mach/mem_map.h
index 581fc6eea78..d5eaef21edb 100644
--- a/arch/blackfin/mach-bf533/include/mach/mem_map.h
+++ b/arch/blackfin/mach-bf533/include/mach/mem_map.h
@@ -168,4 +168,19 @@
#define L1_SCRATCH_START 0xFFB00000
#define L1_SCRATCH_LENGTH 0x1000
+#define get_l1_scratch_start_cpu(cpu) L1_SCRATCH_START
+#define get_l1_code_start_cpu(cpu) L1_CODE_START
+#define get_l1_data_a_start_cpu(cpu) L1_DATA_A_START
+#define get_l1_data_b_start_cpu(cpu) L1_DATA_B_START
+#define get_l1_scratch_start() L1_SCRATCH_START
+#define get_l1_code_start() L1_CODE_START
+#define get_l1_data_a_start() L1_DATA_A_START
+#define get_l1_data_b_start() L1_DATA_B_START
+
+#define GET_PDA_SAFE(preg) \
+ preg.l = _cpu_pda; \
+ preg.h = _cpu_pda;
+
+#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg)
+
#endif /* _MEM_MAP_533_H_ */
diff --git a/arch/blackfin/mach-bf537/include/mach/mem_map.h b/arch/blackfin/mach-bf537/include/mach/mem_map.h
index 5078b669431..be4de761be9 100644
--- a/arch/blackfin/mach-bf537/include/mach/mem_map.h
+++ b/arch/blackfin/mach-bf537/include/mach/mem_map.h
@@ -176,4 +176,19 @@
#define L1_SCRATCH_START 0xFFB00000
#define L1_SCRATCH_LENGTH 0x1000
+#define get_l1_scratch_start_cpu(cpu) L1_SCRATCH_START
+#define get_l1_code_start_cpu(cpu) L1_CODE_START
+#define get_l1_data_a_start_cpu(cpu) L1_DATA_A_START
+#define get_l1_data_b_start_cpu(cpu) L1_DATA_B_START
+#define get_l1_scratch_start() L1_SCRATCH_START
+#define get_l1_code_start() L1_CODE_START
+#define get_l1_data_a_start() L1_DATA_A_START
+#define get_l1_data_b_start() L1_DATA_B_START
+
+#define GET_PDA_SAFE(preg) \
+ preg.l = _cpu_pda; \
+ preg.h = _cpu_pda;
+
+#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg)
+
#endif /* _MEM_MAP_537_H_ */
diff --git a/arch/blackfin/mach-bf538/include/mach/mem_map.h b/arch/blackfin/mach-bf538/include/mach/mem_map.h
index d65d4301615..c134057c91f 100644
--- a/arch/blackfin/mach-bf538/include/mach/mem_map.h
+++ b/arch/blackfin/mach-bf538/include/mach/mem_map.h
@@ -104,4 +104,19 @@
#define L1_SCRATCH_START 0xFFB00000
#define L1_SCRATCH_LENGTH 0x1000
+#define get_l1_scratch_start_cpu(cpu) L1_SCRATCH_START
+#define get_l1_code_start_cpu(cpu) L1_CODE_START
+#define get_l1_data_a_start_cpu(cpu) L1_DATA_A_START
+#define get_l1_data_b_start_cpu(cpu) L1_DATA_B_START
+#define get_l1_scratch_start() L1_SCRATCH_START
+#define get_l1_code_start() L1_CODE_START
+#define get_l1_data_a_start() L1_DATA_A_START
+#define get_l1_data_b_start() L1_DATA_B_START
+
+#define GET_PDA_SAFE(preg) \
+ preg.l = _cpu_pda; \
+ preg.h = _cpu_pda;
+
+#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg)
+
#endif /* _MEM_MAP_538_H_ */
diff --git a/arch/blackfin/mach-bf548/include/mach/mem_map.h b/arch/blackfin/mach-bf548/include/mach/mem_map.h
index a2228428dc0..361eb0e85bc 100644
--- a/arch/blackfin/mach-bf548/include/mach/mem_map.h
+++ b/arch/blackfin/mach-bf548/include/mach/mem_map.h
@@ -108,4 +108,19 @@
#define L1_SCRATCH_START 0xFFB00000
#define L1_SCRATCH_LENGTH 0x1000
+#define get_l1_scratch_start_cpu(cpu) L1_SCRATCH_START
+#define get_l1_code_start_cpu(cpu) L1_CODE_START
+#define get_l1_data_a_start_cpu(cpu) L1_DATA_A_START
+#define get_l1_data_b_start_cpu(cpu) L1_DATA_B_START
+#define get_l1_scratch_start() L1_SCRATCH_START
+#define get_l1_code_start() L1_CODE_START
+#define get_l1_data_a_start() L1_DATA_A_START
+#define get_l1_data_b_start() L1_DATA_B_START
+
+#define GET_PDA_SAFE(preg) \
+ preg.l = _cpu_pda; \
+ preg.h = _cpu_pda;
+
+#define GET_PDA(preg, dreg) GET_PDA_SAFE(preg)
+
#endif/* _MEM_MAP_548_H_ */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-17 17:44:19 +0000