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authorMike Frysinger <vapier@gentoo.org>2011-06-27 05:11:19 +0200
committerMike Frysinger <vapier@gentoo.org>2011-07-23 07:18:29 +0200
commiteed7b8365807549c67613ea7d9a451262050ba3e (patch)
tree784d91e216a393904d5bb74bfcb00a878c159d10 /arch/blackfin
parentBlackfin: dpmc: do not save/restore EVT0/EVT1/EVT4 when hibernating (diff)
downloadlinux-eed7b8365807549c67613ea7d9a451262050ba3e.tar.xz
linux-eed7b8365807549c67613ea7d9a451262050ba3e.zip
Blackfin: dpmc: optimize hibernate/resume path
The current save logic used in hibernation is to do a MMR load (base + offset) into a register, and then push that onto the stack. Then when restoring, pop off the stack into a register followed by a MMR store (base + offset). These use plenty of 32bit insns rather than 16bit, are pretty long winded, and full of pipeline bubbles. So, by taking advantage of MMRs that are contiguous, the multi-register push/pop insn, and register abuse, we can shrink this code considerably. When saving, the new logic does a lot of loads into the data and pointer registers before executing a single multi-register push insn. Then when restoring, we do a single multi-register pop insn followed by a lot of stores. Overall, this allows us to cut the insn count by ~30%, the code size by ~45%, and drastically reduce the register hazards that trigger bubbles in the pipeline. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/include/asm/dpmc.h1
-rw-r--r--arch/blackfin/mach-common/dpmc_modes.S1010
2 files changed, 572 insertions, 439 deletions
diff --git a/arch/blackfin/include/asm/dpmc.h b/arch/blackfin/include/asm/dpmc.h
index d1ba87793e9b..c4ec959dad78 100644
--- a/arch/blackfin/include/asm/dpmc.h
+++ b/arch/blackfin/include/asm/dpmc.h
@@ -117,7 +117,6 @@
#ifndef __ASSEMBLY__
void sleep_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
-void hibernate_mode(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
void sleep_deeper(u32 sic_iwr0, u32 sic_iwr1, u32 sic_iwr2);
void do_hibernate(int wakeup);
void set_dram_srfs(void);
diff --git a/arch/blackfin/mach-common/dpmc_modes.S b/arch/blackfin/mach-common/dpmc_modes.S
index d814bf571231..1a1c09287222 100644
--- a/arch/blackfin/mach-common/dpmc_modes.S
+++ b/arch/blackfin/mach-common/dpmc_modes.S
@@ -50,11 +50,21 @@ ENTRY(_sleep_mode)
RTS;
ENDPROC(_sleep_mode)
+/*
+ * This func never returns as it puts the part into hibernate, and
+ * is only called from do_hibernate, so we don't bother saving or
+ * restoring any of the normal C runtime state. When we wake up,
+ * the entry point will be in do_hibernate and not here.
+ *
+ * We accept just one argument -- the value to write to VR_CTL.
+ */
ENTRY(_hibernate_mode)
- [--SP] = ( R7:0, P5:0 );
- [--SP] = RETS;
+ /* Save/setup the regs we need early for minor pipeline optimization */
+ R4 = R0;
+ P3.H = hi(VR_CTL);
+ P3.L = lo(VR_CTL);
- R3 = R0;
+ /* Disable all wakeup sources */
R0 = IWR_DISABLE_ALL;
R1 = IWR_DISABLE_ALL;
R2 = IWR_DISABLE_ALL;
@@ -62,10 +72,8 @@ ENTRY(_hibernate_mode)
call _set_dram_srfs;
SSYNC;
- P0.H = hi(VR_CTL);
- P0.L = lo(VR_CTL);
-
- W[P0] = R3.L;
+ /* Finally, we climb into our cave to hibernate */
+ W[P3] = R4.L;
CLI R2;
IDLE;
.Lforever:
@@ -268,227 +276,55 @@ ENDPROC(_test_pll_locked)
.section .text
-#define PM_PUSH(x) \
- R0 = [P0 + (x - SRAM_BASE_ADDRESS)];\
- [--SP] = R0;\
-
-#define PM_POP(x) \
- R0 = [SP++];\
- [P0 + (x - SRAM_BASE_ADDRESS)] = R0;\
-
-#define PM_SYS_PUSH(x) \
- R0 = [P0 + (x - PLL_CTL)];\
- [--SP] = R0;\
-
-#define PM_SYS_POP(x) \
- R0 = [SP++];\
- [P0 + (x - PLL_CTL)] = R0;\
-
-#define PM_SYS_PUSH16(x) \
- R0 = w[P0 + (x - PLL_CTL)];\
- [--SP] = R0;\
-
-#define PM_SYS_POP16(x) \
- R0 = [SP++];\
- w[P0 + (x - PLL_CTL)] = R0;\
+#define PM_REG0 R7
+#define PM_REG1 R6
+#define PM_REG2 R5
+#define PM_REG3 R4
+#define PM_REG4 R3
+#define PM_REG5 R2
+#define PM_REG6 R1
+#define PM_REG7 R0
+#define PM_REG8 P5
+#define PM_REG9 P4
+#define PM_REG10 P3
+#define PM_REG11 P2
+#define PM_REG12 P1
+#define PM_REG13 P0
+
+#define PM_REGSET0 R7:7
+#define PM_REGSET1 R7:6
+#define PM_REGSET2 R7:5
+#define PM_REGSET3 R7:4
+#define PM_REGSET4 R7:3
+#define PM_REGSET5 R7:2
+#define PM_REGSET6 R7:1
+#define PM_REGSET7 R7:0
+#define PM_REGSET8 R7:0, P5:5
+#define PM_REGSET9 R7:0, P5:4
+#define PM_REGSET10 R7:0, P5:3
+#define PM_REGSET11 R7:0, P5:2
+#define PM_REGSET12 R7:0, P5:1
+#define PM_REGSET13 R7:0, P5:0
+
+#define _PM_PUSH(n, x, w, base) PM_REG##n = w[FP + ((x) - (base))];
+#define _PM_POP(n, x, w, base) w[FP + ((x) - (base))] = PM_REG##n;
+#define PM_PUSH_SYNC(n) [--sp] = (PM_REGSET##n);
+#define PM_POP_SYNC(n) (PM_REGSET##n) = [sp++];
+#define PM_PUSH(n, x) PM_REG##n = [FP++];
+#define PM_POP(n, x) [FP--] = PM_REG##n;
+#define PM_CORE_PUSH(n, x) _PM_PUSH(n, x, , COREMMR_BASE)
+#define PM_CORE_POP(n, x) _PM_POP(n, x, , COREMMR_BASE)
+#define PM_SYS_PUSH(n, x) _PM_PUSH(n, x, , SYSMMR_BASE)
+#define PM_SYS_POP(n, x) _PM_POP(n, x, , SYSMMR_BASE)
+#define PM_SYS_PUSH16(n, x) _PM_PUSH(n, x, w, SYSMMR_BASE)
+#define PM_SYS_POP16(n, x) _PM_POP(n, x, w, SYSMMR_BASE)
ENTRY(_do_hibernate)
- [--SP] = ( R7:0, P5:0 );
- [--SP] = RETS;
- /* Save System MMRs */
- R2 = R0;
- P0.H = hi(PLL_CTL);
- P0.L = lo(PLL_CTL);
-
-#ifdef SIC_IMASK0
- PM_SYS_PUSH(SIC_IMASK0)
-#endif
-#ifdef SIC_IMASK1
- PM_SYS_PUSH(SIC_IMASK1)
-#endif
-#ifdef SIC_IMASK2
- PM_SYS_PUSH(SIC_IMASK2)
-#endif
-#ifdef SIC_IMASK
- PM_SYS_PUSH(SIC_IMASK)
-#endif
-#ifdef SIC_IAR0
- PM_SYS_PUSH(SIC_IAR0)
- PM_SYS_PUSH(SIC_IAR1)
- PM_SYS_PUSH(SIC_IAR2)
-#endif
-#ifdef SIC_IAR3
- PM_SYS_PUSH(SIC_IAR3)
-#endif
-#ifdef SIC_IAR4
- PM_SYS_PUSH(SIC_IAR4)
- PM_SYS_PUSH(SIC_IAR5)
- PM_SYS_PUSH(SIC_IAR6)
-#endif
-#ifdef SIC_IAR7
- PM_SYS_PUSH(SIC_IAR7)
-#endif
-#ifdef SIC_IAR8
- PM_SYS_PUSH(SIC_IAR8)
- PM_SYS_PUSH(SIC_IAR9)
- PM_SYS_PUSH(SIC_IAR10)
- PM_SYS_PUSH(SIC_IAR11)
-#endif
-
-#ifdef SIC_IWR
- PM_SYS_PUSH(SIC_IWR)
-#endif
-#ifdef SIC_IWR0
- PM_SYS_PUSH(SIC_IWR0)
-#endif
-#ifdef SIC_IWR1
- PM_SYS_PUSH(SIC_IWR1)
-#endif
-#ifdef SIC_IWR2
- PM_SYS_PUSH(SIC_IWR2)
-#endif
-
-#ifdef PINT0_ASSIGN
- PM_SYS_PUSH(PINT0_MASK_SET)
- PM_SYS_PUSH(PINT1_MASK_SET)
- PM_SYS_PUSH(PINT2_MASK_SET)
- PM_SYS_PUSH(PINT3_MASK_SET)
- PM_SYS_PUSH(PINT0_ASSIGN)
- PM_SYS_PUSH(PINT1_ASSIGN)
- PM_SYS_PUSH(PINT2_ASSIGN)
- PM_SYS_PUSH(PINT3_ASSIGN)
- PM_SYS_PUSH(PINT0_INVERT_SET)
- PM_SYS_PUSH(PINT1_INVERT_SET)
- PM_SYS_PUSH(PINT2_INVERT_SET)
- PM_SYS_PUSH(PINT3_INVERT_SET)
- PM_SYS_PUSH(PINT0_EDGE_SET)
- PM_SYS_PUSH(PINT1_EDGE_SET)
- PM_SYS_PUSH(PINT2_EDGE_SET)
- PM_SYS_PUSH(PINT3_EDGE_SET)
-#endif
-
- PM_SYS_PUSH(EBIU_AMBCTL0)
- PM_SYS_PUSH(EBIU_AMBCTL1)
- PM_SYS_PUSH16(EBIU_AMGCTL)
-
-#ifdef EBIU_FCTL
- PM_SYS_PUSH(EBIU_MBSCTL)
- PM_SYS_PUSH(EBIU_MODE)
- PM_SYS_PUSH(EBIU_FCTL)
-#endif
-
-#ifdef PORTCIO_FER
- PM_SYS_PUSH16(PORTCIO_DIR)
- PM_SYS_PUSH16(PORTCIO_INEN)
- PM_SYS_PUSH16(PORTCIO)
- PM_SYS_PUSH16(PORTCIO_FER)
- PM_SYS_PUSH16(PORTDIO_DIR)
- PM_SYS_PUSH16(PORTDIO_INEN)
- PM_SYS_PUSH16(PORTDIO)
- PM_SYS_PUSH16(PORTDIO_FER)
- PM_SYS_PUSH16(PORTEIO_DIR)
- PM_SYS_PUSH16(PORTEIO_INEN)
- PM_SYS_PUSH16(PORTEIO)
- PM_SYS_PUSH16(PORTEIO_FER)
-#endif
-
- PM_SYS_PUSH16(SYSCR)
-
- /* Save Core MMRs */
- P0.H = hi(SRAM_BASE_ADDRESS);
- P0.L = lo(SRAM_BASE_ADDRESS);
-
- PM_PUSH(DMEM_CONTROL)
- PM_PUSH(DCPLB_ADDR0)
- PM_PUSH(DCPLB_ADDR1)
- PM_PUSH(DCPLB_ADDR2)
- PM_PUSH(DCPLB_ADDR3)
- PM_PUSH(DCPLB_ADDR4)
- PM_PUSH(DCPLB_ADDR5)
- PM_PUSH(DCPLB_ADDR6)
- PM_PUSH(DCPLB_ADDR7)
- PM_PUSH(DCPLB_ADDR8)
- PM_PUSH(DCPLB_ADDR9)
- PM_PUSH(DCPLB_ADDR10)
- PM_PUSH(DCPLB_ADDR11)
- PM_PUSH(DCPLB_ADDR12)
- PM_PUSH(DCPLB_ADDR13)
- PM_PUSH(DCPLB_ADDR14)
- PM_PUSH(DCPLB_ADDR15)
- PM_PUSH(DCPLB_DATA0)
- PM_PUSH(DCPLB_DATA1)
- PM_PUSH(DCPLB_DATA2)
- PM_PUSH(DCPLB_DATA3)
- PM_PUSH(DCPLB_DATA4)
- PM_PUSH(DCPLB_DATA5)
- PM_PUSH(DCPLB_DATA6)
- PM_PUSH(DCPLB_DATA7)
- PM_PUSH(DCPLB_DATA8)
- PM_PUSH(DCPLB_DATA9)
- PM_PUSH(DCPLB_DATA10)
- PM_PUSH(DCPLB_DATA11)
- PM_PUSH(DCPLB_DATA12)
- PM_PUSH(DCPLB_DATA13)
- PM_PUSH(DCPLB_DATA14)
- PM_PUSH(DCPLB_DATA15)
- PM_PUSH(IMEM_CONTROL)
- PM_PUSH(ICPLB_ADDR0)
- PM_PUSH(ICPLB_ADDR1)
- PM_PUSH(ICPLB_ADDR2)
- PM_PUSH(ICPLB_ADDR3)
- PM_PUSH(ICPLB_ADDR4)
- PM_PUSH(ICPLB_ADDR5)
- PM_PUSH(ICPLB_ADDR6)
- PM_PUSH(ICPLB_ADDR7)
- PM_PUSH(ICPLB_ADDR8)
- PM_PUSH(ICPLB_ADDR9)
- PM_PUSH(ICPLB_ADDR10)
- PM_PUSH(ICPLB_ADDR11)
- PM_PUSH(ICPLB_ADDR12)
- PM_PUSH(ICPLB_ADDR13)
- PM_PUSH(ICPLB_ADDR14)
- PM_PUSH(ICPLB_ADDR15)
- PM_PUSH(ICPLB_DATA0)
- PM_PUSH(ICPLB_DATA1)
- PM_PUSH(ICPLB_DATA2)
- PM_PUSH(ICPLB_DATA3)
- PM_PUSH(ICPLB_DATA4)
- PM_PUSH(ICPLB_DATA5)
- PM_PUSH(ICPLB_DATA6)
- PM_PUSH(ICPLB_DATA7)
- PM_PUSH(ICPLB_DATA8)
- PM_PUSH(ICPLB_DATA9)
- PM_PUSH(ICPLB_DATA10)
- PM_PUSH(ICPLB_DATA11)
- PM_PUSH(ICPLB_DATA12)
- PM_PUSH(ICPLB_DATA13)
- PM_PUSH(ICPLB_DATA14)
- PM_PUSH(ICPLB_DATA15)
- PM_PUSH(EVT2)
- PM_PUSH(EVT3)
- PM_PUSH(EVT5)
- PM_PUSH(EVT6)
- PM_PUSH(EVT7)
- PM_PUSH(EVT8)
- PM_PUSH(EVT9)
- PM_PUSH(EVT10)
- PM_PUSH(EVT11)
- PM_PUSH(EVT12)
- PM_PUSH(EVT13)
- PM_PUSH(EVT14)
- PM_PUSH(EVT15)
- PM_PUSH(IMASK)
- PM_PUSH(ILAT)
- PM_PUSH(IPRIO)
- PM_PUSH(TCNTL)
- PM_PUSH(TPERIOD)
- PM_PUSH(TSCALE)
- PM_PUSH(TCOUNT)
- PM_PUSH(TBUFCTL)
-
- /* Save Core Registers */
- [--sp] = SYSCFG;
- [--sp] = ( R7:0, P5:0 );
+ /*
+ * Save the core regs early so we can blow them away when
+ * saving/restoring MMR states
+ */
+ [--sp] = (R7:0, P5:0);
[--sp] = fp;
[--sp] = usp;
@@ -523,43 +359,532 @@ ENTRY(_do_hibernate)
[--sp] = LB0;
[--sp] = LB1;
+ /* We can't push RETI directly as that'll change IPEND[4] */
+ r7 = RETI;
+ [--sp] = RETS;
[--sp] = ASTAT;
[--sp] = CYCLES;
[--sp] = CYCLES2;
-
- [--sp] = RETS;
- r0 = RETI;
- [--sp] = r0;
+ [--sp] = SYSCFG;
[--sp] = RETX;
[--sp] = SEQSTAT;
+ [--sp] = r7;
+
+ /* Save first func arg in M3 */
+ M3 = R0;
+
+ /* Save system MMRs */
+ FP.H = hi(SYSMMR_BASE);
+ FP.L = lo(SYSMMR_BASE);
+
+#ifdef SIC_IMASK0
+ PM_SYS_PUSH(0, SIC_IMASK0)
+ PM_SYS_PUSH(1, SIC_IMASK1)
+# ifdef SIC_IMASK2
+ PM_SYS_PUSH(2, SIC_IMASK2)
+# endif
+#else
+ PM_SYS_PUSH(0, SIC_IMASK)
+#endif
+#ifdef SIC_IAR0
+ PM_SYS_PUSH(3, SIC_IAR0)
+ PM_SYS_PUSH(4, SIC_IAR1)
+ PM_SYS_PUSH(5, SIC_IAR2)
+#endif
+#ifdef SIC_IAR3
+ PM_SYS_PUSH(6, SIC_IAR3)
+#endif
+#ifdef SIC_IAR4
+ PM_SYS_PUSH(7, SIC_IAR4)
+ PM_SYS_PUSH(8, SIC_IAR5)
+ PM_SYS_PUSH(9, SIC_IAR6)
+#endif
+#ifdef SIC_IAR7
+ PM_SYS_PUSH(10, SIC_IAR7)
+#endif
+#ifdef SIC_IAR8
+ PM_SYS_PUSH(11, SIC_IAR8)
+ PM_SYS_PUSH(12, SIC_IAR9)
+ PM_SYS_PUSH(13, SIC_IAR10)
+#endif
+ PM_PUSH_SYNC(13)
+#ifdef SIC_IAR11
+ PM_SYS_PUSH(0, SIC_IAR11)
+#endif
+
+#ifdef SIC_IWR
+ PM_SYS_PUSH(1, SIC_IWR)
+#endif
+#ifdef SIC_IWR0
+ PM_SYS_PUSH(1, SIC_IWR0)
+#endif
+#ifdef SIC_IWR1
+ PM_SYS_PUSH(2, SIC_IWR1)
+#endif
+#ifdef SIC_IWR2
+ PM_SYS_PUSH(3, SIC_IWR2)
+#endif
+
+#ifdef PINT0_ASSIGN
+ PM_SYS_PUSH(4, PINT0_MASK_SET)
+ PM_SYS_PUSH(5, PINT1_MASK_SET)
+ PM_SYS_PUSH(6, PINT2_MASK_SET)
+ PM_SYS_PUSH(7, PINT3_MASK_SET)
+ PM_SYS_PUSH(8, PINT0_ASSIGN)
+ PM_SYS_PUSH(9, PINT1_ASSIGN)
+ PM_SYS_PUSH(10, PINT2_ASSIGN)
+ PM_SYS_PUSH(11, PINT3_ASSIGN)
+ PM_SYS_PUSH(12, PINT0_INVERT_SET)
+ PM_SYS_PUSH(13, PINT1_INVERT_SET)
+ PM_PUSH_SYNC(13)
+ PM_SYS_PUSH(0, PINT2_INVERT_SET)
+ PM_SYS_PUSH(1, PINT3_INVERT_SET)
+ PM_SYS_PUSH(2, PINT0_EDGE_SET)
+ PM_SYS_PUSH(3, PINT1_EDGE_SET)
+ PM_SYS_PUSH(4, PINT2_EDGE_SET)
+ PM_SYS_PUSH(5, PINT3_EDGE_SET)
+#endif
+
+ PM_SYS_PUSH16(6, SYSCR)
+
+ PM_SYS_PUSH16(7, EBIU_AMGCTL)
+ PM_SYS_PUSH(8, EBIU_AMBCTL0)
+ PM_SYS_PUSH(9, EBIU_AMBCTL1)
+#ifdef EBIU_FCTL
+ PM_SYS_PUSH(10, EBIU_MBSCTL)
+ PM_SYS_PUSH(11, EBIU_MODE)
+ PM_SYS_PUSH(12, EBIU_FCTL)
+ PM_PUSH_SYNC(12)
+#else
+ PM_PUSH_SYNC(9)
+#endif
+
+#ifdef PORTCIO_FER
+ /* 16bit loads can only be done with dregs */
+ PM_SYS_PUSH16(0, PORTCIO_DIR)
+ PM_SYS_PUSH16(1, PORTCIO_INEN)
+ PM_SYS_PUSH16(2, PORTCIO)
+ PM_SYS_PUSH16(3, PORTCIO_FER)
+ PM_SYS_PUSH16(4, PORTDIO_DIR)
+ PM_SYS_PUSH16(5, PORTDIO_INEN)
+ PM_SYS_PUSH16(6, PORTDIO)
+ PM_SYS_PUSH16(7, PORTDIO_FER)
+ PM_PUSH_SYNC(7)
+ PM_SYS_PUSH16(0, PORTEIO_DIR)
+ PM_SYS_PUSH16(1, PORTEIO_INEN)
+ PM_SYS_PUSH16(2, PORTEIO)
+ PM_SYS_PUSH16(3, PORTEIO_FER)
+ PM_PUSH_SYNC(3)
+#endif
+
+ /* Save Core MMRs */
+ I0.H = hi(COREMMR_BASE);
+ I0.L = lo(COREMMR_BASE);
+ I1 = I0;
+ I2 = I0;
+ I3 = I0;
+ B0 = I0;
+ B1 = I0;
+ B2 = I0;
+ B3 = I0;
+ I1.L = lo(DCPLB_ADDR0);
+ I2.L = lo(DCPLB_DATA0);
+ I3.L = lo(ICPLB_ADDR0);
+ B0.L = lo(ICPLB_DATA0);
+ B1.L = lo(EVT2);
+ B2.L = lo(IMASK);
+ B3.L = lo(TCNTL);
+
+ /* DCPLB Addr */
+ FP = I1;
+ PM_PUSH(0, DCPLB_ADDR0)
+ PM_PUSH(1, DCPLB_ADDR1)
+ PM_PUSH(2, DCPLB_ADDR2)
+ PM_PUSH(3, DCPLB_ADDR3)
+ PM_PUSH(4, DCPLB_ADDR4)
+ PM_PUSH(5, DCPLB_ADDR5)
+ PM_PUSH(6, DCPLB_ADDR6)
+ PM_PUSH(7, DCPLB_ADDR7)
+ PM_PUSH(8, DCPLB_ADDR8)
+ PM_PUSH(9, DCPLB_ADDR9)
+ PM_PUSH(10, DCPLB_ADDR10)
+ PM_PUSH(11, DCPLB_ADDR11)
+ PM_PUSH(12, DCPLB_ADDR12)
+ PM_PUSH(13, DCPLB_ADDR13)
+ PM_PUSH_SYNC(13)
+ PM_PUSH(0, DCPLB_ADDR14)
+ PM_PUSH(1, DCPLB_ADDR15)
+
+ /* DCPLB Data */
+ FP = I2;
+ PM_PUSH(2, DCPLB_DATA0)
+ PM_PUSH(3, DCPLB_DATA1)
+ PM_PUSH(4, DCPLB_DATA2)
+ PM_PUSH(5, DCPLB_DATA3)
+ PM_PUSH(6, DCPLB_DATA4)
+ PM_PUSH(7, DCPLB_DATA5)
+ PM_PUSH(8, DCPLB_DATA6)
+ PM_PUSH(9, DCPLB_DATA7)
+ PM_PUSH(10, DCPLB_DATA8)
+ PM_PUSH(11, DCPLB_DATA9)
+ PM_PUSH(12, DCPLB_DATA10)
+ PM_PUSH(13, DCPLB_DATA11)
+ PM_PUSH_SYNC(13)
+ PM_PUSH(0, DCPLB_DATA12)
+ PM_PUSH(1, DCPLB_DATA13)
+ PM_PUSH(2, DCPLB_DATA14)
+ PM_PUSH(3, DCPLB_DATA15)
+
+ /* ICPLB Addr */
+ FP = I3;
+ PM_PUSH(4, ICPLB_ADDR0)
+ PM_PUSH(5, ICPLB_ADDR1)
+ PM_PUSH(6, ICPLB_ADDR2)
+ PM_PUSH(7, ICPLB_ADDR3)
+ PM_PUSH(8, ICPLB_ADDR4)
+ PM_PUSH(9, ICPLB_ADDR5)
+ PM_PUSH(10, ICPLB_ADDR6)
+ PM_PUSH(11, ICPLB_ADDR7)
+ PM_PUSH(12, ICPLB_ADDR8)
+ PM_PUSH(13, ICPLB_ADDR9)
+ PM_PUSH_SYNC(13)
+ PM_PUSH(0, ICPLB_ADDR10)
+ PM_PUSH(1, ICPLB_ADDR11)
+ PM_PUSH(2, ICPLB_ADDR12)
+ PM_PUSH(3, ICPLB_ADDR13)
+ PM_PUSH(4, ICPLB_ADDR14)
+ PM_PUSH(5, ICPLB_ADDR15)
+
+ /* ICPLB Data */
+ FP = B0;
+ PM_PUSH(6, ICPLB_DATA0)
+ PM_PUSH(7, ICPLB_DATA1)
+ PM_PUSH(8, ICPLB_DATA2)
+ PM_PUSH(9, ICPLB_DATA3)
+ PM_PUSH(10, ICPLB_DATA4)
+ PM_PUSH(11, ICPLB_DATA5)
+ PM_PUSH(12, ICPLB_DATA6)
+ PM_PUSH(13, ICPLB_DATA7)
+ PM_PUSH_SYNC(13)
+ PM_PUSH(0, ICPLB_DATA8)
+ PM_PUSH(1, ICPLB_DATA9)
+ PM_PUSH(2, ICPLB_DATA10)
+ PM_PUSH(3, ICPLB_DATA11)
+ PM_PUSH(4, ICPLB_DATA12)
+ PM_PUSH(5, ICPLB_DATA13)
+ PM_PUSH(6, ICPLB_DATA14)
+ PM_PUSH(7, ICPLB_DATA15)
+
+ /* Event Vectors */
+ FP = B1;
+ PM_PUSH(8, EVT2)
+ PM_PUSH(9, EVT3)
+ FP += 4; /* EVT4 */
+ PM_PUSH(10, EVT5)
+ PM_PUSH(11, EVT6)
+ PM_PUSH(12, EVT7)
+ PM_PUSH(13, EVT8)
+ PM_PUSH_SYNC(13)
+ PM_PUSH(0, EVT9)
+ PM_PUSH(1, EVT10)
+ PM_PUSH(2, EVT11)
+ PM_PUSH(3, EVT12)
+ PM_PUSH(4, EVT13)
+ PM_PUSH(5, EVT14)
+ PM_PUSH(6, EVT15)
+
+ /* CEC */
+ FP = B2;
+ PM_PUSH(7, IMASK)
+ FP += 4; /* IPEND */
+ PM_PUSH(8, ILAT)
+ PM_PUSH(9, IPRIO)
+
+ /* Core Timer */
+ FP = B3;
+ PM_PUSH(10, TCNTL)
+ PM_PUSH(11, TPERIOD)
+ PM_PUSH(12, TSCALE)
+ PM_PUSH(13, TCOUNT)
+ PM_PUSH_SYNC(13)
+
+ /* Misc non-contiguous registers */
+ FP = I0;
+ PM_CORE_PUSH(0, DMEM_CONTROL);
+ PM_CORE_PUSH(1, IMEM_CONTROL);
+ PM_CORE_PUSH(2, TBUFCTL);
+ PM_PUSH_SYNC(2)
+
+ /* Setup args to hibernate mode early for pipeline optimization */
+ R0 = M3;
+ P1.H = _hibernate_mode;
+ P1.L = _hibernate_mode;
/* Save Magic, return address and Stack Pointer */
- P0.H = 0;
- P0.L = 0;
- R0.H = 0xDEAD; /* Hibernate Magic */
- R0.L = 0xBEEF;
- [P0++] = R0; /* Store Hibernate Magic */
- R0.H = .Lpm_resume_here;
- R0.L = .Lpm_resume_here;
- [P0++] = R0; /* Save Return Address */
+ P0 = 0;
+ R1.H = 0xDEAD; /* Hibernate Magic */
+ R1.L = 0xBEEF;
+ R2.H = .Lpm_resume_here;
+ R2.L = .Lpm_resume_here;
+ [P0++] = R1; /* Store Hibernate Magic */
+ [P0++] = R2; /* Save Return Address */
[P0++] = SP; /* Save Stack Pointer */
- P0.H = _hibernate_mode;
- P0.L = _hibernate_mode;
- R0 = R2;
- call (P0); /* Goodbye */
+
+ /* Must use an indirect call as we need to jump to L1 */
+ call (P1); /* Goodbye */
.Lpm_resume_here:
+ /* Restore Core MMRs */
+ I0.H = hi(COREMMR_BASE);
+ I0.L = lo(COREMMR_BASE);
+ I1 = I0;
+ I2 = I0;
+ I3 = I0;
+ B0 = I0;
+ B1 = I0;
+ B2 = I0;
+ B3 = I0;
+ I1.L = lo(DCPLB_ADDR15);
+ I2.L = lo(DCPLB_DATA15);
+ I3.L = lo(ICPLB_ADDR15);
+ B0.L = lo(ICPLB_DATA15);
+ B1.L = lo(EVT15);
+ B2.L = lo(IPRIO);
+ B3.L = lo(TCOUNT);
+
+ /* Misc non-contiguous registers */
+ FP = I0;
+ PM_POP_SYNC(2)
+ PM_CORE_POP(2, TBUFCTL)
+ PM_CORE_POP(1, IMEM_CONTROL)
+ PM_CORE_POP(0, DMEM_CONTROL)
+
+ /* Core Timer */
+ PM_POP_SYNC(13)
+ FP = B3;
+ PM_POP(13, TCOUNT)
+ PM_POP(12, TSCALE)
+ PM_POP(11, TPERIOD)
+ PM_POP(10, TCNTL)
+
+ /* CEC */
+ FP = B2;
+ PM_POP(9, IPRIO)
+ PM_POP(8, ILAT)
+ FP += -4; /* IPEND */
+ PM_POP(7, IMASK)
+
+ /* Event Vectors */
+ FP = B1;
+ PM_POP(6, EVT15)
+ PM_POP(5, EVT14)
+ PM_POP(4, EVT13)
+ PM_POP(3, EVT12)
+ PM_POP(2, EVT11)
+ PM_POP(1, EVT10)
+ PM_POP(0, EVT9)
+ PM_POP_SYNC(13)
+ PM_POP(13, EVT8)
+ PM_POP(12, EVT7)
+ PM_POP(11, EVT6)
+ PM_POP(10, EVT5)
+ FP += -4; /* EVT4 */
+ PM_POP(9, EVT3)
+ PM_POP(8, EVT2)
+
+ /* ICPLB Data */
+ FP = B0;
+ PM_POP(7, ICPLB_DATA15)
+ PM_POP(6, ICPLB_DATA14)
+ PM_POP(5, ICPLB_DATA13)
+ PM_POP(4, ICPLB_DATA12)
+ PM_POP(3, ICPLB_DATA11)
+ PM_POP(2, ICPLB_DATA10)
+ PM_POP(1, ICPLB_DATA9)
+ PM_POP(0, ICPLB_DATA8)
+ PM_POP_SYNC(13)
+ PM_POP(13, ICPLB_DATA7)
+ PM_POP(12, ICPLB_DATA6)
+ PM_POP(11, ICPLB_DATA5)
+ PM_POP(10, ICPLB_DATA4)
+ PM_POP(9, ICPLB_DATA3)
+ PM_POP(8, ICPLB_DATA2)
+ PM_POP(7, ICPLB_DATA1)
+ PM_POP(6, ICPLB_DATA0)
+
+ /* ICPLB Addr */
+ FP = I3;
+ PM_POP(5, ICPLB_ADDR15)
+ PM_POP(4, ICPLB_ADDR14)
+ PM_POP(3, ICPLB_ADDR13)
+ PM_POP(2, ICPLB_ADDR12)
+ PM_POP(1, ICPLB_ADDR11)
+ PM_POP(0, ICPLB_ADDR10)
+ PM_POP_SYNC(13)
+ PM_POP(13, ICPLB_ADDR9)
+ PM_POP(12, ICPLB_ADDR8)
+ PM_POP(11, ICPLB_ADDR7)
+ PM_POP(10, ICPLB_ADDR6)
+ PM_POP(9, ICPLB_ADDR5)
+ PM_POP(8, ICPLB_ADDR4)
+ PM_POP(7, ICPLB_ADDR3)
+ PM_POP(6, ICPLB_ADDR2)
+ PM_POP(5, ICPLB_ADDR1)
+ PM_POP(4, ICPLB_ADDR0)
+
+ /* DCPLB Data */
+ FP = I2;
+ PM_POP(3, DCPLB_DATA15)
+ PM_POP(2, DCPLB_DATA14)
+ PM_POP(1, DCPLB_DATA13)
+ PM_POP(0, DCPLB_DATA12)
+ PM_POP_SYNC(13)
+ PM_POP(13, DCPLB_DATA11)
+ PM_POP(12, DCPLB_DATA10)
+ PM_POP(11, DCPLB_DATA9)
+ PM_POP(10, DCPLB_DATA8)
+ PM_POP(9, DCPLB_DATA7)
+ PM_POP(8, DCPLB_DATA6)
+ PM_POP(7, DCPLB_DATA5)
+ PM_POP(6, DCPLB_DATA4)
+ PM_POP(5, DCPLB_DATA3)
+ PM_POP(4, DCPLB_DATA2)
+ PM_POP(3, DCPLB_DATA1)
+ PM_POP(2, DCPLB_DATA0)
+
+ /* DCPLB Addr */
+ FP = I1;
+ PM_POP(1, DCPLB_ADDR15)
+ PM_POP(0, DCPLB_ADDR14)
+ PM_POP_SYNC(13)
+ PM_POP(13, DCPLB_ADDR13)
+ PM_POP(12, DCPLB_ADDR12)
+ PM_POP(11, DCPLB_ADDR11)
+ PM_POP(10, DCPLB_ADDR10)
+ PM_POP(9, DCPLB_ADDR9)
+ PM_POP(8, DCPLB_ADDR8)
+ PM_POP(7, DCPLB_ADDR7)
+ PM_POP(6, DCPLB_ADDR6)
+ PM_POP(5, DCPLB_ADDR5)
+ PM_POP(4, DCPLB_ADDR4)
+ PM_POP(3, DCPLB_ADDR3)
+ PM_POP(2, DCPLB_ADDR2)
+ PM_POP(1, DCPLB_ADDR1)
+ PM_POP(0, DCPLB_ADDR0)
+
+ /* Restore System MMRs */
+ FP.H = hi(SYSMMR_BASE);
+ FP.L = lo(SYSMMR_BASE);
+
+#ifdef PORTCIO_FER
+ PM_POP_SYNC(3)
+ PM_SYS_POP16(3, PORTEIO_FER)
+ PM_SYS_POP16(2, PORTEIO)
+ PM_SYS_POP16(1, PORTEIO_INEN)
+ PM_SYS_POP16(0, PORTEIO_DIR)
+ PM_POP_SYNC(7)
+ PM_SYS_POP16(7, PORTDIO_FER)
+ PM_SYS_POP16(6, PORTDIO)
+ PM_SYS_POP16(5, PORTDIO_INEN)
+ PM_SYS_POP16(4, PORTDIO_DIR)
+ PM_SYS_POP16(3, PORTCIO_FER)
+ PM_SYS_POP16(2, PORTCIO)
+ PM_SYS_POP16(1, PORTCIO_INEN)
+ PM_SYS_POP16(0, PORTCIO_DIR)
+#endif
+
+#ifdef EBIU_FCTL
+ PM_POP_SYNC(12)
+ PM_SYS_POP(12, EBIU_FCTL)
+ PM_SYS_POP(11, EBIU_MODE)
+ PM_SYS_POP(10, EBIU_MBSCTL)
+#else
+ PM_POP_SYNC(9)
+#endif
+ PM_SYS_POP(9, EBIU_AMBCTL1)
+ PM_SYS_POP(8, EBIU_AMBCTL0)
+ PM_SYS_POP16(7, EBIU_AMGCTL)
+
+ PM_SYS_POP16(6, SYSCR)
+
+#ifdef PINT0_ASSIGN
+ PM_SYS_POP(5, PINT3_EDGE_SET)
+ PM_SYS_POP(4, PINT2_EDGE_SET)
+ PM_SYS_POP(3, PINT1_EDGE_SET)
+ PM_SYS_POP(2, PINT0_EDGE_SET)
+ PM_SYS_POP(1, PINT3_INVERT_SET)
+ PM_SYS_POP(0, PINT2_INVERT_SET)
+ PM_POP_SYNC(13)
+ PM_SYS_POP(13, PINT1_INVERT_SET)
+ PM_SYS_POP(12, PINT0_INVERT_SET)
+ PM_SYS_POP(11, PINT3_ASSIGN)
+ PM_SYS_POP(10, PINT2_ASSIGN)
+ PM_SYS_POP(9, PINT1_ASSIGN)
+ PM_SYS_POP(8, PINT0_ASSIGN)
+ PM_SYS_POP(7, PINT3_MASK_SET)
+ PM_SYS_POP(6, PINT2_MASK_SET)
+ PM_SYS_POP(5, PINT1_MASK_SET)
+ PM_SYS_POP(4, PINT0_MASK_SET)
+#endif
+
+#ifdef SIC_IWR2
+ PM_SYS_POP(3, SIC_IWR2)
+#endif
+#ifdef SIC_IWR1
+ PM_SYS_POP(2, SIC_IWR1)
+#endif
+#ifdef SIC_IWR0
+ PM_SYS_POP(1, SIC_IWR0)
+#endif
+#ifdef SIC_IWR
+ PM_SYS_POP(1, SIC_IWR)
+#endif
+
+#ifdef SIC_IAR11
+ PM_SYS_POP(0, SIC_IAR11)
+#endif
+ PM_POP_SYNC(13)
+#ifdef SIC_IAR8
+ PM_SYS_POP(13, SIC_IAR10)
+ PM_SYS_POP(12, SIC_IAR9)
+ PM_SYS_POP(11, SIC_IAR8)
+#endif
+#ifdef SIC_IAR7
+ PM_SYS_POP(10, SIC_IAR7)
+#endif
+#ifdef SIC_IAR6
+ PM_SYS_POP(9, SIC_IAR6)
+ PM_SYS_POP(8, SIC_IAR5)
+ PM_SYS_POP(7, SIC_IAR4)
+#endif
+#ifdef SIC_IAR3
+ PM_SYS_POP(6, SIC_IAR3)
+#endif
+#ifdef SIC_IAR0
+ PM_SYS_POP(5, SIC_IAR2)
+ PM_SYS_POP(4, SIC_IAR1)
+ PM_SYS_POP(3, SIC_IAR0)
+#endif
+#ifdef SIC_IMASK0
+# ifdef SIC_IMASK2
+ PM_SYS_POP(2, SIC_IMASK2)
+# endif
+ PM_SYS_POP(1, SIC_IMASK1)
+ PM_SYS_POP(0, SIC_IMASK0)
+#else
+ PM_SYS_POP(0, SIC_IMASK)
+#endif
+
/* Restore Core Registers */
+ RETI = [sp++];
SEQSTAT = [sp++];
RETX = [sp++];
- r0 = [sp++];
- RETI = r0;
- RETS = [sp++];
-
+ SYSCFG = [sp++];
CYCLES2 = [sp++];
CYCLES = [sp++];
ASTAT = [sp++];
+ RETS = [sp++];
LB1 = [sp++];
LB0 = [sp++];
@@ -594,201 +919,10 @@ ENTRY(_do_hibernate)
usp = [sp++];
fp = [sp++];
-
- ( R7 : 0, P5 : 0) = [ SP ++ ];
- SYSCFG = [sp++];
-
- /* Restore Core MMRs */
-
- PM_POP(TBUFCTL)
- PM_POP(TCOUNT)
- PM_POP(TSCALE)
- PM_POP(TPERIOD)
- PM_POP(TCNTL)
- PM_POP(IPRIO)
- PM_POP(ILAT)
- PM_POP(IMASK)
- PM_POP(EVT15)
- PM_POP(EVT14)
- PM_POP(EVT13)
- PM_POP(EVT12)
- PM_POP(EVT11)
- PM_POP(EVT10)
- PM_POP(EVT9)
- PM_POP(EVT8)
- PM_POP(EVT7)
- PM_POP(EVT6)
- PM_POP(EVT5)
- PM_POP(EVT3)
- PM_POP(EVT2)
- PM_POP(ICPLB_DATA15)
- PM_POP(ICPLB_DATA14)
- PM_POP(ICPLB_DATA13)
- PM_POP(ICPLB_DATA12)
- PM_POP(ICPLB_DATA11)
- PM_POP(ICPLB_DATA10)
- PM_POP(ICPLB_DATA9)
- PM_POP(ICPLB_DATA8)
- PM_POP(ICPLB_DATA7)
- PM_POP(ICPLB_DATA6)
- PM_POP(ICPLB_DATA5)
- PM_POP(ICPLB_DATA4)
- PM_POP(ICPLB_DATA3)
- PM_POP(ICPLB_DATA2)
- PM_POP(ICPLB_DATA1)
- PM_POP(ICPLB_DATA0)
- PM_POP(ICPLB_ADDR15)
- PM_POP(ICPLB_ADDR14)
- PM_POP(ICPLB_ADDR13)
- PM_POP(ICPLB_ADDR12)
- PM_POP(ICPLB_ADDR11)
- PM_POP(ICPLB_ADDR10)
- PM_POP(ICPLB_ADDR9)
- PM_POP(ICPLB_ADDR8)
- PM_POP(ICPLB_ADDR7)
- PM_POP(ICPLB_ADDR6)
- PM_POP(ICPLB_ADDR5)
- PM_POP(ICPLB_ADDR4)
- PM_POP(ICPLB_ADDR3)
- PM_POP(ICPLB_ADDR2)
- PM_POP(ICPLB_ADDR1)
- PM_POP(ICPLB_ADDR0)
- PM_POP(IMEM_CONTROL)
- PM_POP(DCPLB_DATA15)
- PM_POP(DCPLB_DATA14)
- PM_POP(DCPLB_DATA13)
- PM_POP(DCPLB_DATA12)
- PM_POP(DCPLB_DATA11)
- PM_POP(DCPLB_DATA10)
- PM_POP(DCPLB_DATA9)
- PM_POP(DCPLB_DATA8)
- PM_POP(DCPLB_DATA7)
- PM_POP(DCPLB_DATA6)
- PM_POP(DCPLB_DATA5)
- PM_POP(DCPLB_DATA4)
- PM_POP(DCPLB_DATA3)
- PM_POP(DCPLB_DATA2)
- PM_POP(DCPLB_DATA1)
- PM_POP(DCPLB_DATA0)
- PM_POP(DCPLB_ADDR15)
- PM_POP(DCPLB_ADDR14)
- PM_POP(DCPLB_ADDR13)
- PM_POP(DCPLB_ADDR12)
- PM_POP(DCPLB_ADDR11)
- PM_POP(DCPLB_ADDR10)
- PM_POP(DCPLB_ADDR9)
- PM_POP(DCPLB_ADDR8)
- PM_POP(DCPLB_ADDR7)
- PM_POP(DCPLB_ADDR6)
- PM_POP(DCPLB_ADDR5)
- PM_POP(DCPLB_ADDR4)
- PM_POP(DCPLB_ADDR3)
- PM_POP(DCPLB_ADDR2)
- PM_POP(DCPLB_ADDR1)
- PM_POP(DCPLB_ADDR0)
- PM_POP(DMEM_CONTROL)
-
- /* Restore System MMRs */
-
- P0.H = hi(PLL_CTL);
- P0.L = lo(PLL_CTL);
- PM_SYS_POP16(SYSCR)
-
-#ifdef PORTCIO_FER
- PM_SYS_POP16(PORTEIO_FER)
- PM_SYS_POP16(PORTEIO)
- PM_SYS_POP16(PORTEIO_INEN)
- PM_SYS_POP16(PORTEIO_DIR)
- PM_SYS_POP16(PORTDIO_FER)
- PM_SYS_POP16(PORTDIO)
- PM_SYS_POP16(PORTDIO_INEN)
- PM_SYS_POP16(PORTDIO_DIR)
- PM_SYS_POP16(PORTCIO_FER)
- PM_SYS_POP16(PORTCIO)
- PM_SYS_POP16(PORTCIO_INEN)
- PM_SYS_POP16(PORTCIO_DIR)
-#endif
-
-#ifdef EBIU_FCTL
- PM_SYS_POP(EBIU_FCTL)
- PM_SYS_POP(EBIU_MODE)
- PM_SYS_POP(EBIU_MBSCTL)
-#endif
- PM_SYS_POP16(EBIU_AMGCTL)
- PM_SYS_POP(EBIU_AMBCTL1)
- PM_SYS_POP(EBIU_AMBCTL0)
-
-#ifdef PINT0_ASSIGN
- PM_SYS_POP(PINT3_EDGE_SET)
- PM_SYS_POP(PINT2_EDGE_SET)
- PM_SYS_POP(PINT1_EDGE_SET)
- PM_SYS_POP(PINT0_EDGE_SET)
- PM_SYS_POP(PINT3_INVERT_SET)
- PM_SYS_POP(PINT2_INVERT_SET)
- PM_SYS_POP(PINT1_INVERT_SET)
- PM_SYS_POP(PINT0_INVERT_SET)
- PM_SYS_POP(PINT3_ASSIGN)
- PM_SYS_POP(PINT2_ASSIGN)
- PM_SYS_POP(PINT1_ASSIGN)
- PM_SYS_POP(PINT0_ASSIGN)
- PM_SYS_POP(PINT3_MASK_SET)
- PM_SYS_POP(PINT2_MASK_SET)
- PM_SYS_POP(PINT1_MASK_SET)
- PM_SYS_POP(PINT0_MASK_SET)
-#endif
-
-#ifdef SIC_IWR2
- PM_SYS_POP(SIC_IWR2)
-#endif
-#ifdef SIC_IWR1
- PM_SYS_POP(SIC_IWR1)
-#endif
-#ifdef SIC_IWR0
- PM_SYS_POP(SIC_IWR0)
-#endif
-#ifdef SIC_IWR
- PM_SYS_POP(SIC_IWR)
-#endif
-
-#ifdef SIC_IAR8
- PM_SYS_POP(SIC_IAR11)
- PM_SYS_POP(SIC_IAR10)
- PM_SYS_POP(SIC_IAR9)
- PM_SYS_POP(SIC_IAR8)
-#endif
-#ifdef SIC_IAR7
- PM_SYS_POP(SIC_IAR7)
-#endif
-#ifdef SIC_IAR6
- PM_SYS_POP(SIC_IAR6)
- PM_SYS_POP(SIC_IAR5)
- PM_SYS_POP(SIC_IAR4)
-#endif
-#ifdef SIC_IAR3
- PM_SYS_POP(SIC_IAR3)
-#endif
-#ifdef SIC_IAR0
- PM_SYS_POP(SIC_IAR2)
- PM_SYS_POP(SIC_IAR1)
- PM_SYS_POP(SIC_IAR0)
-#endif
-#ifdef SIC_IMASK
- PM_SYS_POP(SIC_IMASK)
-#endif
-#ifdef SIC_IMASK2
- PM_SYS_POP(SIC_IMASK2)
-#endif
-#ifdef SIC_IMASK1
- PM_SYS_POP(SIC_IMASK1)
-#endif
-#ifdef SIC_IMASK0
- PM_SYS_POP(SIC_IMASK0)
-#endif
+ (R7:0, P5:0) = [sp++];
[--sp] = RETI; /* Clear Global Interrupt Disable */
SP += 4;
- RETS = [SP++];
- ( R7:0, P5:0 ) = [SP++];
RTS;
ENDPROC(_do_hibernate)