From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35807) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XJXCA-00086J-Mr for qemu-devel@nongnu.org; Mon, 18 Aug 2014 20:22:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XJXC0-00041m-Ns for qemu-devel@nongnu.org; Mon, 18 Aug 2014 20:22:38 -0400 Received: from e8.ny.us.ibm.com ([32.97.182.138]:50220) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XJXC0-00041E-Ja for qemu-devel@nongnu.org; Mon, 18 Aug 2014 20:22:28 -0400 Received: from /spool/local by e8.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 18 Aug 2014 20:22:28 -0400 From: Michael Roth Date: Mon, 18 Aug 2014 19:21:52 -0500 Message-Id: <1408407718-10835-7-git-send-email-mdroth@linux.vnet.ibm.com> In-Reply-To: <1408407718-10835-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1408407718-10835-1-git-send-email-mdroth@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 06/12] spapr_pci: add get-sensor-state RTAS interface List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aik@ozlabs.ru, agraf@suse.de, ncmike@ncultra.org, qemu-ppc@nongnu.org, tyreld@linux.vnet.ibm.com, nfont@linux.vnet.ibm.com From: Mike Day Signed-off-by: Mike Day Signed-off-by: Michael Roth --- hw/ppc/spapr_pci.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index f007dd6..8d1351d 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -66,6 +66,7 @@ #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 */ @@ -75,6 +76,10 @@ #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)) @@ -532,6 +537,75 @@ 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; + sPAPRDrcEntry *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; @@ -1200,6 +1274,8 @@ void spapr_pci_rtas_init(void) rtas_set_power_level); spapr_rtas_register(RTAS_GET_POWER_LEVEL, "get-power-level", rtas_get_power_level); + spapr_rtas_register(RTAS_GET_SENSOR_STATE, "get-sensor-state", + rtas_get_sensor_state); } static void spapr_pci_register_types(void) -- 1.9.1