diff options
| -rw-r--r-- | hw/slw.c | 92 | ||||
| -rw-r--r-- | include/opal-api.h | 15 |
2 files changed, 93 insertions, 14 deletions
@@ -480,6 +480,20 @@ static struct cpu_idle_states power8_cpu_idle_states[] = { */ static struct cpu_idle_states power9_cpu_idle_states[] = { { + .name = "stop0_lite", /* Enter stop0 with no state loss */ + .latency_ns = 200, + .residency_ns = 2000, + .flags = 0*OPAL_PM_DEC_STOP \ + | 0*OPAL_PM_TIMEBASE_STOP \ + | 0*OPAL_PM_LOSE_USER_CONTEXT \ + | 0*OPAL_PM_LOSE_HYP_CONTEXT \ + | 0*OPAL_PM_LOSE_FULL_CONTEXT \ + | 1*OPAL_PM_STOP_INST_FAST, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(0) \ + | OPAL_PM_PSSCR_MTL(3) \ + | OPAL_PM_PSSCR_TR(3), + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, + { .name = "stop0", .latency_ns = 300, .residency_ns = 3000, @@ -489,8 +503,26 @@ static struct cpu_idle_states power9_cpu_idle_states[] = { | 0*OPAL_PM_LOSE_HYP_CONTEXT \ | 0*OPAL_PM_LOSE_FULL_CONTEXT \ | 1*OPAL_PM_STOP_INST_FAST, - .pm_ctrl_reg_val = 0, - .pm_ctrl_reg_mask = 0xF }, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(0) \ + | OPAL_PM_PSSCR_MTL(3) \ + | OPAL_PM_PSSCR_TR(3) \ + | OPAL_PM_PSSCR_ESL \ + | OPAL_PM_PSSCR_EC, + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, + { + .name = "stop1_lite", /* Enter stop1 with no state loss */ + .latency_ns = 4900, + .residency_ns = 49000, + .flags = 0*OPAL_PM_DEC_STOP \ + | 0*OPAL_PM_TIMEBASE_STOP \ + | 1*OPAL_PM_LOSE_USER_CONTEXT \ + | 0*OPAL_PM_LOSE_HYP_CONTEXT \ + | 0*OPAL_PM_LOSE_FULL_CONTEXT \ + | 1*OPAL_PM_STOP_INST_FAST, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(1) \ + | OPAL_PM_PSSCR_MTL(3) \ + | OPAL_PM_PSSCR_TR(3), + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, { .name = "stop1", .latency_ns = 5000, @@ -501,8 +533,26 @@ static struct cpu_idle_states power9_cpu_idle_states[] = { | 0*OPAL_PM_LOSE_HYP_CONTEXT \ | 0*OPAL_PM_LOSE_FULL_CONTEXT \ | 1*OPAL_PM_STOP_INST_FAST, - .pm_ctrl_reg_val = 1, - .pm_ctrl_reg_mask = 0xF }, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(1) \ + | OPAL_PM_PSSCR_MTL(3) \ + | OPAL_PM_PSSCR_TR(3) \ + | OPAL_PM_PSSCR_ESL \ + | OPAL_PM_PSSCR_EC, + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, + { + .name = "stop2_lite", /* Enter stop2 with no state loss */ + .latency_ns = 9900, + .residency_ns = 99000, + .flags = 0*OPAL_PM_DEC_STOP \ + | 0*OPAL_PM_TIMEBASE_STOP \ + | 1*OPAL_PM_LOSE_USER_CONTEXT \ + | 0*OPAL_PM_LOSE_HYP_CONTEXT \ + | 0*OPAL_PM_LOSE_FULL_CONTEXT \ + | 1*OPAL_PM_STOP_INST_FAST, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(2) \ + | OPAL_PM_PSSCR_MTL(3) \ + | OPAL_PM_PSSCR_TR(3), + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, { .name = "stop2", .latency_ns = 10000, @@ -513,9 +563,12 @@ static struct cpu_idle_states power9_cpu_idle_states[] = { | 0*OPAL_PM_LOSE_HYP_CONTEXT \ | 0*OPAL_PM_LOSE_FULL_CONTEXT \ | 1*OPAL_PM_STOP_INST_FAST, - .pm_ctrl_reg_val = 2, - .pm_ctrl_reg_mask = 0xF }, - + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(2) \ + | OPAL_PM_PSSCR_MTL(3) \ + | OPAL_PM_PSSCR_TR(3) \ + | OPAL_PM_PSSCR_ESL \ + | OPAL_PM_PSSCR_EC, + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, { .name = "stop4", .latency_ns = 100000, @@ -526,8 +579,12 @@ static struct cpu_idle_states power9_cpu_idle_states[] = { | 1*OPAL_PM_LOSE_HYP_CONTEXT \ | 1*OPAL_PM_LOSE_FULL_CONTEXT \ | 1*OPAL_PM_STOP_INST_DEEP, - .pm_ctrl_reg_val = 4, - .pm_ctrl_reg_mask = 0xF }, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(4) \ + | OPAL_PM_PSSCR_MTL(7) \ + | OPAL_PM_PSSCR_TR(3) \ + | OPAL_PM_PSSCR_ESL \ + | OPAL_PM_PSSCR_EC, + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, { .name = "stop8", @@ -539,9 +596,12 @@ static struct cpu_idle_states power9_cpu_idle_states[] = { | 1*OPAL_PM_LOSE_HYP_CONTEXT \ | 1*OPAL_PM_LOSE_FULL_CONTEXT \ | 1*OPAL_PM_STOP_INST_DEEP, - .pm_ctrl_reg_val = 0x8, - .pm_ctrl_reg_mask = 0xF }, - + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(8) \ + | OPAL_PM_PSSCR_MTL(11) \ + | OPAL_PM_PSSCR_TR(3) \ + | OPAL_PM_PSSCR_ESL \ + | OPAL_PM_PSSCR_EC, + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, { .name = "stop11", @@ -553,8 +613,12 @@ static struct cpu_idle_states power9_cpu_idle_states[] = { | 1*OPAL_PM_LOSE_HYP_CONTEXT \ | 1*OPAL_PM_LOSE_FULL_CONTEXT \ | 1*OPAL_PM_STOP_INST_DEEP, - .pm_ctrl_reg_val = 0xB, - .pm_ctrl_reg_mask = 0xF }, + .pm_ctrl_reg_val = OPAL_PM_PSSCR_RL(11) \ + | OPAL_PM_PSSCR_MTL(11) \ + | OPAL_PM_PSSCR_TR(3) \ + | OPAL_PM_PSSCR_ESL \ + | OPAL_PM_PSSCR_EC, + .pm_ctrl_reg_mask = OPAL_PM_PSSCR_MASK }, }; /* Add device tree properties to describe idle states */ diff --git a/include/opal-api.h b/include/opal-api.h index 05ff51d..36471ae 100644 --- a/include/opal-api.h +++ b/include/opal-api.h @@ -209,6 +209,21 @@ #define OPAL_PM_DEEPWINKLE_PMICR 0x0000000000300000UL #define OPAL_PM_WINKLE_PMICR_MASK 0x0000000000300000UL +#define OPAL_PM_PSSCR_RL_MASK 0x000000000000000FUL +#define OPAL_PM_PSSCR_MTL_MASK 0x00000000000000F0UL +#define OPAL_PM_PSSCR_TR_MASK 0x0000000000000300UL +#define OPAL_PM_PSSCR_ESL PPC_BIT(42) +#define OPAL_PM_PSSCR_EC PPC_BIT(43) + +#define OPAL_PM_PSSCR_MASK OPAL_PM_PSSCR_RL_MASK | \ + OPAL_PM_PSSCR_MTL_MASK | \ + OPAL_PM_PSSCR_TR_MASK | \ + OPAL_PM_PSSCR_ESL | \ + OPAL_PM_PSSCR_EC + +#define OPAL_PM_PSSCR_RL(l) (l) +#define OPAL_PM_PSSCR_MTL(l) ((l) << 4) +#define OPAL_PM_PSSCR_TR(l) ((l) << 8) /* * Flags for stop states. Use 2 bits to distinguish between |