Blackfin arch: SMP supporting patchset: Blackfin CPLB related code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to Blackfin CPLB related code
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
index 55af729..269d2a3 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -30,13 +30,13 @@
# error the MPU will not function safely while Anomaly 05000263 applies
#endif
-struct cplb_entry icplb_tbl[MAX_CPLBS];
-struct cplb_entry dcplb_tbl[MAX_CPLBS];
+struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS];
+struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS];
int first_switched_icplb, first_switched_dcplb;
int first_mask_dcplb;
-void __init generate_cplb_tables(void)
+void __init generate_cplb_tables_cpu(unsigned int cpu)
{
int i_d, i_i;
unsigned long addr;
@@ -55,15 +55,16 @@
d_cache |= CPLB_L1_AOW | CPLB_WT;
#endif
#endif
+
i_d = i_i = 0;
/* Set up the zero page. */
- dcplb_tbl[i_d].addr = 0;
- dcplb_tbl[i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
+ dcplb_tbl[cpu][i_d].addr = 0;
+ dcplb_tbl[cpu][i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
#if 0
- icplb_tbl[i_i].addr = 0;
- icplb_tbl[i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB;
+ icplb_tbl[cpu][i_i].addr = 0;
+ icplb_tbl[cpu][i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB;
#endif
/* Cover kernel memory with 4M pages. */
@@ -72,28 +73,28 @@
i_data = i_cache | CPLB_VALID | CPLB_PORTPRIO | PAGE_SIZE_4MB;
for (; addr < memory_start; addr += 4 * 1024 * 1024) {
- dcplb_tbl[i_d].addr = addr;
- dcplb_tbl[i_d++].data = d_data;
- icplb_tbl[i_i].addr = addr;
- icplb_tbl[i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
+ dcplb_tbl[cpu][i_d].addr = addr;
+ dcplb_tbl[cpu][i_d++].data = d_data;
+ icplb_tbl[cpu][i_i].addr = addr;
+ icplb_tbl[cpu][i_i++].data = i_data | (addr == 0 ? CPLB_USER_RD : 0);
}
/* Cover L1 memory. One 4M area for code and data each is enough. */
#if L1_DATA_A_LENGTH > 0 || L1_DATA_B_LENGTH > 0
- dcplb_tbl[i_d].addr = L1_DATA_A_START;
- dcplb_tbl[i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB;
+ dcplb_tbl[cpu][i_d].addr = get_l1_data_a_start_cpu(cpu);
+ dcplb_tbl[cpu][i_d++].data = L1_DMEMORY | PAGE_SIZE_4MB;
#endif
#if L1_CODE_LENGTH > 0
- icplb_tbl[i_i].addr = L1_CODE_START;
- icplb_tbl[i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB;
+ icplb_tbl[cpu][i_i].addr = get_l1_code_start_cpu(cpu);
+ icplb_tbl[cpu][i_i++].data = L1_IMEMORY | PAGE_SIZE_4MB;
#endif
/* Cover L2 memory */
#if L2_LENGTH > 0
- dcplb_tbl[i_d].addr = L2_START;
- dcplb_tbl[i_d++].data = L2_DMEMORY | PAGE_SIZE_1MB;
- icplb_tbl[i_i].addr = L2_START;
- icplb_tbl[i_i++].data = L2_IMEMORY | PAGE_SIZE_1MB;
+ dcplb_tbl[cpu][i_d].addr = L2_START;
+ dcplb_tbl[cpu][i_d++].data = L2_DMEMORY | PAGE_SIZE_1MB;
+ icplb_tbl[cpu][i_i].addr = L2_START;
+ icplb_tbl[cpu][i_i++].data = L2_IMEMORY | PAGE_SIZE_1MB;
#endif
first_mask_dcplb = i_d;
@@ -101,7 +102,7 @@
first_switched_icplb = i_i;
while (i_d < MAX_CPLBS)
- dcplb_tbl[i_d++].data = 0;
+ dcplb_tbl[cpu][i_d++].data = 0;
while (i_i < MAX_CPLBS)
- icplb_tbl[i_i++].data = 0;
+ icplb_tbl[cpu][i_i++].data = 0;
}