From patchwork Thu Oct 1 07:08:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amitay Isaacs X-Patchwork-Id: 1374882 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4C247Z6XKPz9sVT for ; Thu, 1 Oct 2020 17:12:10 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=ozlabs.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=ozlabs.org header.i=@ozlabs.org header.a=rsa-sha256 header.s=201707 header.b=HCmu/rw5; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4C247Z56XvzDqRD for ; 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Thu, 1 Oct 2020 17:12:00 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1601536324; bh=0iMSjzjijOWrlJcNeJaEeNNugWY4Ln2WUJYb8L+dP74=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HCmu/rw5djoL6AFdyUPSz1vviVxPo1pFfTrGIy4A5MEXsd6yPz6x18/DiApRkkJ6i h18MGJgoZJDAwuajHyFhYwdCwq6ZuqRY71fLhUOGFnOPMQeL/GETIfrrmD8J6tQxLJ gzK9bHhV4mb+NSBUtW6boazcliIP7rKD+Acsa1l8mcgK3qJ7X6bewZMTHhTWuIeQQ2 zOSIgM1KX69pL2lpUzWMgNa1dBilBUNCl2qJ5VECidVYGs55/G4z2kCosNUmv3O7/v OkLlkUDdYHB4vcVmatePPPyzIUHfR8SmSxuszRIUshK6SIWevsaMgV0KVNUaVB7gLM RFrzTBvtlmzEQ== From: Amitay Isaacs To: pdbg@lists.ozlabs.org Date: Thu, 1 Oct 2020 17:08:10 +1000 Message-Id: <20201001070814.102735-17-amitay@ozlabs.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201001070814.102735-1-amitay@ozlabs.org> References: <20201001070814.102735-1-amitay@ozlabs.org> MIME-Version: 1.0 Subject: [Pdbg] [PATCH v2 16/20] libsbefifo: Add new chip-ops for hw register get/put X-BeenThere: pdbg@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "mailing list for https://github.com/open-power/pdbg development" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Amitay Isaacs Errors-To: pdbg-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Pdbg" Signed-off-by: Amitay Isaacs Reviewed-by: Joel Stanley --- libsbefifo/cmd_register.c | 131 +++++++++++++++++++++++++++++++++++ libsbefifo/libsbefifo.h | 3 + libsbefifo/sbefifo_private.h | 2 + 3 files changed, 136 insertions(+) diff --git a/libsbefifo/cmd_register.c b/libsbefifo/cmd_register.c index 060d3dc..6c3f336 100644 --- a/libsbefifo/cmd_register.c +++ b/libsbefifo/cmd_register.c @@ -165,3 +165,134 @@ int sbefifo_register_put(struct sbefifo_context *sctx, uint8_t core_id, uint8_t return rc; } + +static int sbefifo_hw_register_get_push(uint8_t target_type, uint8_t instance_id, uint64_t reg_id, uint8_t **buf, uint32_t *buflen) +{ + uint32_t *msg; + uint32_t nwords, cmd; + uint32_t target; + + nwords = 5; + *buflen = nwords * sizeof(uint32_t); + msg = malloc(*buflen); + if (!msg) + return ENOMEM; + + cmd = SBEFIFO_CMD_CLASS_REGISTER | SBEFIFO_CMD_GET_HW_REGISTER; + + target = ((uint32_t)(target_type & 0xff) << 16) | + ((uint32_t)(instance_id & 0xff)); + + msg[0] = htobe32(nwords); + msg[1] = htobe32(cmd); + msg[2] = htobe32(target); + msg[3] = htobe32(reg_id >> 32); + msg[4] = htobe32(reg_id & 0xffffffff); + + *buf = (uint8_t *)msg; + return 0; +} + +static int sbefifo_hw_register_get_pull(uint8_t *buf, uint32_t buflen, uint64_t *value) +{ + uint32_t val1, val2; + + if (buflen != 8) + return EPROTO; + + val1 = be32toh(*(uint32_t *) &buf[0]); + val2 = be32toh(*(uint32_t *) &buf[4]); + + *value = ((uint64_t)val1 << 32) | (uint64_t)val2; + + return 0; +} + +int sbefifo_hw_register_get(struct sbefifo_context *sctx, uint8_t target_type, uint8_t instance_id, uint64_t reg_id, uint64_t *value) +{ + uint8_t *msg, *out; + uint32_t msg_len, out_len; + int rc; + + if (sctx->proc == SBEFIFO_PROC_P9) + return ENOSYS; + + rc = sbefifo_hw_register_get_push(target_type, instance_id, reg_id, &msg, &msg_len); + if (rc) + return rc; + + out_len = 8; + rc = sbefifo_operation(sctx, msg, msg_len, &out, &out_len); + free(msg); + if (rc) + return rc; + + rc = sbefifo_hw_register_get_pull(out, out_len, value); + if (out) + free(out); + + return rc; +} + +static int sbefifo_hw_register_put_push(uint8_t target_type, uint8_t instance_id, uint64_t reg_id, uint64_t value, uint8_t **buf, uint32_t *buflen) +{ + uint32_t *msg; + uint32_t nwords, cmd; + uint32_t target; + + nwords = 7; + *buflen = nwords * sizeof(uint32_t); + msg = malloc(*buflen); + if (!msg) + return ENOMEM; + + cmd = SBEFIFO_CMD_CLASS_REGISTER | SBEFIFO_CMD_PUT_HW_REGISTER; + + target = ((uint32_t)(target_type & 0xff) << 16) | + ((uint32_t)(instance_id & 0xff)); + + msg[0] = htobe32(nwords); + msg[1] = htobe32(cmd); + msg[2] = htobe32(target); + msg[3] = htobe32(reg_id >> 32); + msg[4] = htobe32(reg_id & 0xffffffff); + msg[5] = htobe32(value >> 32); + msg[6] = htobe32(value & 0xffffffff); + + *buf = (uint8_t *)msg; + return 0; +} + +static int sbefifo_hw_register_put_pull(uint8_t *buf, uint32_t buflen) +{ + if (buflen != 0) + return EPROTO; + + return 0; +} + +int sbefifo_hw_register_put(struct sbefifo_context *sctx, uint8_t target_type, uint8_t instance_id, uint64_t reg_id, uint64_t value) +{ + uint8_t *msg, *out; + uint32_t msg_len, out_len; + int rc; + + if (sctx->proc == SBEFIFO_PROC_P9) + return ENOSYS; + + rc = sbefifo_hw_register_put_push(target_type, instance_id, reg_id, value, &msg, &msg_len); + if (rc) + return rc; + + out_len = 0; + rc = sbefifo_operation(sctx, msg, msg_len, &out, &out_len); + free(msg); + if (rc) + return rc; + + rc = sbefifo_hw_register_put_pull(out, out_len); + if (out) + free(out); + + return rc; +} diff --git a/libsbefifo/libsbefifo.h b/libsbefifo/libsbefifo.h index 7c85c25..4d6b016 100644 --- a/libsbefifo/libsbefifo.h +++ b/libsbefifo/libsbefifo.h @@ -163,6 +163,9 @@ int sbefifo_sram_put(struct sbefifo_context *sctx, uint16_t chiplet_id, uint64_t int sbefifo_register_get(struct sbefifo_context *sctx, uint8_t core_id, uint8_t thread_id, uint8_t reg_type, uint32_t *reg_id, uint8_t reg_count, uint64_t **value); int sbefifo_register_put(struct sbefifo_context *sctx, uint8_t core_id, uint8_t thread_id, uint8_t reg_type, uint32_t *reg_id, uint8_t reg_count, uint64_t *value); +int sbefifo_hw_register_get(struct sbefifo_context *sctx, uint8_t target_type, uint8_t instance_id, uint64_t reg_id, uint64_t *value); +int sbefifo_hw_register_put(struct sbefifo_context *sctx, uint8_t target_type, uint8_t instance_id, uint64_t reg_id, uint64_t value); + int sbefifo_control_fast_array(struct sbefifo_context *sctx, uint16_t target_type, uint8_t chiplet_id, uint8_t mode, uint64_t clock_cycle); int sbefifo_control_trace_array(struct sbefifo_context *sctx, uint16_t target_type, uint8_t chiplet_id, uint16_t array_id, uint16_t operation, uint8_t **trace_data, uint32_t *trace_data_len); diff --git a/libsbefifo/sbefifo_private.h b/libsbefifo/sbefifo_private.h index d3f6a8b..e49f673 100644 --- a/libsbefifo/sbefifo_private.h +++ b/libsbefifo/sbefifo_private.h @@ -45,6 +45,8 @@ #define SBEFIFO_CMD_CLASS_REGISTER 0xA500 #define SBEFIFO_CMD_GET_REGISTER 0x01 #define SBEFIFO_CMD_PUT_REGISTER 0x02 +#define SBEFIFO_CMD_GET_HW_REGISTER 0x03 +#define SBEFIFO_CMD_PUT_HW_REGISTER 0x04 #define SBEFIFO_CMD_CLASS_ARRAY 0xA600 #define SBEFIFO_CMD_FAST_ARRAY 0x01