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[Qemu-ppc] [PATCH v2 06/14] spapr_pci: add get-sensor-state RTAS interfa
From: |
Michael Roth |
Subject: |
[Qemu-ppc] [PATCH v2 06/14] spapr_pci: add get-sensor-state RTAS interface |
Date: |
Thu, 5 Dec 2013 16:32:57 -0600 |
From: Mike Day <address@hidden>
Signed-off-by: Mike Day <address@hidden>
Signed-off-by: Michael Roth <address@hidden>
---
hw/ppc/spapr_pci.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++
include/hw/ppc/spapr.h | 7 ++++-
2 files changed, 76 insertions(+), 1 deletion(-)
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 8df44a3..5c099a8 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -508,6 +508,75 @@ static void rtas_get_power_level(PowerPCCPU *cpu,
sPAPREnvironment *spapr,
rtas_st(rets, 1, 100);
}
+static void rtas_get_sensor_state(PowerPCCPU *cpu, sPAPREnvironment *spapr,
+ uint32_t token, uint32_t nargs,
+ target_ulong args, uint32_t nret,
+ target_ulong rets)
+{
+ uint32_t sensor = rtas_ld(args, 0);
+ uint32_t drc_index = rtas_ld(args, 1);
+ uint32_t sensor_state = 0, decoded = 0;
+ uint32_t shift = 0, mask = 0;
+ DrcEntry *drc_entry = NULL;
+
+ if (drc_index == 0) { /* platform state sensor/indicator */
+ sensor_state = spapr->state;
+ } else { /* we should have a drc entry */
+ drc_entry = spapr_find_drc_entry(drc_index);
+ if (!drc_entry) {
+ DPRINTF("unable to find DRC entry for index %x", drc_index);
+ sensor_state = 0; /* empty */
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+ return;
+ }
+ sensor_state = drc_entry->state;
+ }
+ switch (sensor) {
+ case 9: /* EPOW */
+ shift = INDICATOR_EPOW_SHIFT;
+ mask = INDICATOR_EPOW_MASK;
+ break;
+ case 9001: /* Isolation state */
+ /* encode the new value into the correct bit field */
+ shift = INDICATOR_ISOLATION_SHIFT;
+ mask = INDICATOR_ISOLATION_MASK;
+ break;
+ case 9002: /* DR */
+ shift = INDICATOR_DR_SHIFT;
+ mask = INDICATOR_DR_MASK;
+ break;
+ case 9003: /* entity sense */
+ shift = INDICATOR_ENTITY_SENSE_SHIFT;
+ mask = INDICATOR_ENTITY_SENSE_MASK;
+ break;
+ case 9005: /* global interrupt */
+ shift = INDICATOR_GLOBAL_INTERRUPT_SHIFT;
+ mask = INDICATOR_GLOBAL_INTERRUPT_MASK;
+ break;
+ case 9006: /* error log */
+ shift = INDICATOR_ERROR_LOG_SHIFT;
+ mask = INDICATOR_ERROR_LOG_MASK;
+ break;
+ case 9007: /* identify */
+ shift = INDICATOR_IDENTIFY_SHIFT;
+ mask = INDICATOR_IDENTIFY_MASK;
+ break;
+ case 9009: /* reset */
+ shift = INDICATOR_RESET_SHIFT;
+ mask = INDICATOR_RESET_MASK;
+ break;
+ default:
+ DPRINTF("rtas_get_sensor_state: sensor not implemented: %d",
+ sensor);
+ rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
+ return;
+ }
+
+ decoded = DECODE_DRC_STATE(sensor_state, mask, shift);
+ rtas_st(rets, 0, RTAS_OUT_SUCCESS);
+ rtas_st(rets, 1, decoded);
+}
+
static int pci_spapr_swizzle(int slot, int pin)
{
return (slot + pin) % PCI_NUM_PINS;
@@ -1073,6 +1142,7 @@ void spapr_pci_rtas_init(void)
spapr_rtas_register("set-indicator", rtas_set_indicator);
spapr_rtas_register("set-power-level", rtas_set_power_level);
spapr_rtas_register("get-power-level", rtas_get_power_level);
+ spapr_rtas_register("get-sensor-state", rtas_get_sensor_state);
}
static void spapr_pci_register_types(void)
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index b48c55f..7c8a521 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -337,7 +337,7 @@ DrcEntry *spapr_add_phb_to_drc_table(uint64_t buid,
uint32_t state);
DrcEntry *spapr_phb_to_drc_entry(uint64_t buid);
DrcEntry *spapr_find_drc_entry(int drc_index);
-/* For set-indicator RTAS interface */
+/* For set-indicator/get-sensor-state RTAS interfaces */
#define INDICATOR_ISOLATION_MASK 0x0001 /* 9001 one bit */
#define INDICATOR_GLOBAL_INTERRUPT_MASK 0x0002 /* 9005 one bit */
#define INDICATOR_ERROR_LOG_MASK 0x0004 /* 9006 one bit */
@@ -346,6 +346,7 @@ DrcEntry *spapr_find_drc_entry(int drc_index);
#define INDICATOR_DR_MASK 0x00e0 /* 9002 three bits */
#define INDICATOR_ALLOCATION_MASK 0x0300 /* 9003 two bits */
#define INDICATOR_EPOW_MASK 0x1c00 /* 9 three bits */
+#define INDICATOR_ENTITY_SENSE_MASK 0xe000 /* 9003 three bits */
#define INDICATOR_ISOLATION_SHIFT 0x00 /* bit 0 */
#define INDICATOR_GLOBAL_INTERRUPT_SHIFT 0x01 /* bit 1 */
@@ -355,6 +356,10 @@ DrcEntry *spapr_find_drc_entry(int drc_index);
#define INDICATOR_DR_SHIFT 0x05 /* bits 5-7 */
#define INDICATOR_ALLOCATION_SHIFT 0x08 /* bits 8-9 */
#define INDICATOR_EPOW_SHIFT 0x0a /* bits 10-12 */
+#define INDICATOR_ENTITY_SENSE_SHIFT 0x0d /* bits 13-15 */
+
+#define INDICATOR_ENTITY_SENSE_EMPTY 0
+#define INDICATOR_ENTITY_SENSE_PRESENT 1
#define DECODE_DRC_STATE(state, m, s) \
((((uint32_t)(state) & (uint32_t)(m))) >> (s))
--
1.7.9.5
- [Qemu-ppc] [PATCH v2 00/14] spapr: add support for pci hotplug, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 04/14] spapr_pci: add set-indicator RTAS interface, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 01/14] spapr: populate DRC entries for root dt node, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 05/14] spapr_pci: add get/set-power-level RTAS interfaces, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 07/14] spapr_pci: add ibm, configure-connector RTAS interface, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 06/14] spapr_pci: add get-sensor-state RTAS interface,
Michael Roth <=
- [Qemu-ppc] [PATCH v2 03/14] spapr: add helper to retrieve a PHB/device DrcEntry, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 02/14] spapr_pci: populate DRC dt entries for PHBs, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 09/14] pci: make pci_bar useable outside pci.c, Michael Roth, 2013/12/05
- [Qemu-ppc] [PATCH v2 10/14] pci: allow 0 address for PCI IO regions, Michael Roth, 2013/12/05
- Re: [Qemu-ppc] [PATCH v2 10/14] pci: allow 0 address for PCI IO regions, Michael S. Tsirkin, 2013/12/12
[Qemu-ppc] [PATCH v2 08/14] memory: add memory_region_find_subregion, Michael Roth, 2013/12/05