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MIPS: Move definition of SMP processor id register to header file

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The definition of the CP0 register used to save the smp processor
id is repicated in many files, move them all to thread_info.h.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5708/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Jayachandran C
2013-08-11 17:10:16 +05:30
committed by Ralf Baechle
parent 1a9db0a9ea
commit c2377a42cd
4 changed files with 49 additions and 80 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
arch/mips/mm/tlbex.c
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@@ -340,10 +340,6 @@ static struct work_registers build_get_work_registers(u32 **p)
{
struct work_registers r;
int smp_processor_id_reg;
int smp_processor_id_sel;
int smp_processor_id_shift;
if (scratch_reg >= 0) {
/* Save in CPU local C0_KScratch? */
UASM_i_MTC0(p, 1, c0_kscratch(), scratch_reg);
@@ -354,25 +350,9 @@ static struct work_registers build_get_work_registers(u32 **p)
}
if (num_possible_cpus() > 1) {
#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
smp_processor_id_shift = 51;
smp_processor_id_reg = 20; /* XContext */
smp_processor_id_sel = 0;
#else
# ifdef CONFIG_32BIT
smp_processor_id_shift = 25;
smp_processor_id_reg = 4; /* Context */
smp_processor_id_sel = 0;
# endif
# ifdef CONFIG_64BIT
smp_processor_id_shift = 26;
smp_processor_id_reg = 4; /* Context */
smp_processor_id_sel = 0;
# endif
#endif
/* Get smp_processor_id */
UASM_i_MFC0(p, K0, smp_processor_id_reg, smp_processor_id_sel);
UASM_i_SRL_SAFE(p, K0, K0, smp_processor_id_shift);
UASM_i_CPUID_MFC0(p, K0, SMP_CPUID_REG);
UASM_i_SRL_SAFE(p, K0, K0, SMP_CPUID_REGSHIFT);
/* handler_reg_save index in K0 */
UASM_i_SLL(p, K0, K0, ilog2(sizeof(struct tlb_reg_save)));
@@ -837,20 +817,8 @@ build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
uasm_i_drotr(p, ptr, ptr, 11);
}
#elif defined(CONFIG_SMP)
# ifdef CONFIG_MIPS_MT_SMTC
/*
* SMTC uses TCBind value as "CPU" index
*/
uasm_i_mfc0(p, ptr, C0_TCBIND);
uasm_i_dsrl_safe(p, ptr, ptr, 19);
# else
/*
* 64 bit SMP running in XKPHYS has smp_processor_id() << 3
* stored in CONTEXT.
*/
uasm_i_dmfc0(p, ptr, C0_CONTEXT);
uasm_i_dsrl_safe(p, ptr, ptr, 23);
# endif
UASM_i_CPUID_MFC0(p, ptr, SMP_CPUID_REG);
uasm_i_dsrl_safe(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
UASM_i_LA_mostly(p, tmp, pgdc);
uasm_i_daddu(p, ptr, ptr, tmp);
uasm_i_dmfc0(p, tmp, C0_BADVADDR);
@@ -957,21 +925,9 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
/* 32 bit SMP has smp_processor_id() stored in CONTEXT. */
#ifdef CONFIG_SMP
#ifdef CONFIG_MIPS_MT_SMTC
/*
* SMTC uses TCBind value as "CPU" index
*/
uasm_i_mfc0(p, ptr, C0_TCBIND);
uasm_i_mfc0(p, ptr, SMP_CPUID_REG);
UASM_i_LA_mostly(p, tmp, pgdc);
uasm_i_srl(p, ptr, ptr, 19);
#else
/*
* smp_processor_id() << 2 is stored in CONTEXT.
*/
uasm_i_mfc0(p, ptr, C0_CONTEXT);
UASM_i_LA_mostly(p, tmp, pgdc);
uasm_i_srl(p, ptr, ptr, 23);
#endif
uasm_i_srl(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
uasm_i_addu(p, ptr, tmp, ptr);
#else
UASM_i_LA_mostly(p, ptr, pgdc);