From patchwork Fri Jan 12 12:53:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Cave-Ayland X-Patchwork-Id: 13518457 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5751AC4706C for ; Fri, 12 Jan 2024 13:13:32 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rOH9V-00024P-27; Fri, 12 Jan 2024 08:00:49 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rOH8z-0001nc-FL for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:00:22 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rOH8u-00014o-Bq for qemu-devel@nongnu.org; Fri, 12 Jan 2024 08:00:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ilande.co.uk; s=20220518; h=Subject:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:To:From:Sender:Reply-To:Cc: Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=dW0o6rcEzdYw074HWBK4feyS72H/1RkJMFCgnmq/DHo=; b=w4CPE7aNz8qjUJ0HCdxKxR3AgI FiOo//5wp2Ts7CHl/wupcKzGWMQdPYp7pWZB9JkMmC8rhnx3BzH/ljZMpIwupizCovIWh14p1l6mu BIwv1xeuJKGYNl9uhusMdjt7Dov5l2h+7OVok2B3kM3oDlFb9ZfgmEgaVJTMKe6J9MlBVEKaFw5sx FxOVT/1HOjR0FUE7oc/omcuLybI6sNlCCxe/BC16JudfeBNZDbOZNKn+r6csYsKSnYT2xo7WMsvHV Z7kuRJVLaaHnbU+OAC7q4p6w2noJ6uSHNP2xlZBR0CNaiNGmVaiEzHFm2LPts0QgS/MZFXAk+3/5Y rW1F7GGrKNUvbohSCDMGz6XcgHi7TA5KuWL6XEDLWpTRyfiYYUkfeMZKyX8rhZFbhbTvk6D4BvLAh Ud4N1Gx8SVszc4hHTwFwyBaj37EnZPb4F9E9oJ4a5RN1fXqOeUinxlVW1Wi+414ADQPERG7qEzTFq i/UVpLFUFIBrc3OaF4E/CwhkK5bfxSxDEQ7+cFQVyt3j6sMpJnqjhW+KgElmaLPGC/TJKjmrFZyZj gCPhcFhlzNzXf/Wow0TWoGwPpQC+BbbyF+C6g2/EqmHn82FA+if/lRJXk3s2U8RwtZGHi+as9q6rn kFi3AMMZv1671GrH5zqdwgpFSCguVsLBQ5Dq+nkHM=; Received: from [2a02:8012:c93d:0:260e:bf57:a4e9:8142] (helo=cheesecake.fritz.box) by mail.ilande.co.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rOH5m-0008jM-W8; Fri, 12 Jan 2024 12:57:03 +0000 From: Mark Cave-Ayland To: pbonzini@redhat.com, fam@euphon.net, hpoussin@reactos.org, laurent@vivier.eu, thuth@redhat.com, qemu-devel@nongnu.org Date: Fri, 12 Jan 2024 12:53:48 +0000 Message-Id: <20240112125420.514425-57-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240112125420.514425-1-mark.cave-ayland@ilande.co.uk> References: <20240112125420.514425-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a02:8012:c93d:0:260e:bf57:a4e9:8142 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH 56/88] esp.c: remove unused PDMA callback implementation X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.ilande.co.uk) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.ilande.co.uk X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Note that this is a migration break for the q800 machine because the extra PDMA information is no longer included. Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 55 ++++--------------------------------------- include/hw/scsi/esp.h | 6 ----- 2 files changed, 5 insertions(+), 56 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index bdbdb209f7..5061c9d5a1 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -223,11 +223,6 @@ static void esp_pdma_write(ESPState *s, uint8_t val) esp_set_tc(s, dmalen); } -static void esp_set_pdma_cb(ESPState *s, enum pdma_cb cb) -{ - s->pdma_cb = cb; -} - static int esp_select(ESPState *s) { int target; @@ -377,7 +372,7 @@ static void handle_satn(ESPState *s) s->dma_cb = handle_satn; return; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + if (esp_select(s) < 0) { return; } @@ -400,7 +395,7 @@ static void handle_s_without_atn(ESPState *s) s->dma_cb = handle_s_without_atn; return; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + if (esp_select(s) < 0) { return; } @@ -424,7 +419,7 @@ static void handle_satn_stop(ESPState *s) s->dma_cb = handle_satn_stop; return; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); + if (esp_select(s) < 0) { return; } @@ -497,7 +492,6 @@ static void esp_do_dma(ESPState *s) s->cmdfifo_cdb_offset += n; } - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); switch (s->rregs[ESP_CMD]) { @@ -551,7 +545,6 @@ static void esp_do_dma(ESPState *s) n = MIN(fifo8_num_free(&s->cmdfifo), n); fifo8_push_all(&s->cmdfifo, buf, n); - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); } trace_esp_handle_ti_cmd(cmdlen); @@ -597,7 +590,6 @@ static void esp_do_dma(ESPState *s) s->async_len -= n; s->ti_size += n; - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); if (s->async_len == 0 && fifo8_num_used(&s->fifo) < 2) { @@ -644,7 +636,6 @@ static void esp_do_dma(ESPState *s) s->async_len -= len; s->ti_size -= len; esp_set_tc(s, esp_get_tc(s) - len); - esp_set_pdma_cb(s, DO_DMA_PDMA_CB); esp_raise_drq(s); if (s->async_len == 0 && fifo8_num_used(&s->fifo) < 2) { @@ -805,11 +796,6 @@ static void esp_do_nodma(ESPState *s) } } -static void esp_pdma_cb(ESPState *s) -{ - esp_do_dma(s); -} - void esp_command_complete(SCSIRequest *req, size_t resid) { ESPState *s = req->hba_private; @@ -1229,33 +1215,6 @@ static int esp_post_load(void *opaque, int version_id) return 0; } -/* - * PDMA (or pseudo-DMA) is only used on the Macintosh and requires the - * guest CPU to perform the transfers between the SCSI bus and memory - * itself. This is indicated by the dma_memory_read and dma_memory_write - * functions being NULL (in contrast to the ESP PCI device) whilst - * dma_enabled is still set. - */ - -static bool esp_pdma_needed(void *opaque) -{ - ESPState *s = ESP(opaque); - - return s->dma_memory_read == NULL && s->dma_memory_write == NULL && - s->dma_enabled; -} - -static const VMStateDescription vmstate_esp_pdma = { - .name = "esp/pdma", - .version_id = 0, - .minimum_version_id = 0, - .needed = esp_pdma_needed, - .fields = (const VMStateField[]) { - VMSTATE_UINT8(pdma_cb, ESPState), - VMSTATE_END_OF_LIST() - } -}; - const VMStateDescription vmstate_esp = { .name = "esp", .version_id = 6, @@ -1290,10 +1249,6 @@ const VMStateDescription vmstate_esp = { VMSTATE_UINT8_TEST(lun, ESPState, esp_is_version_6), VMSTATE_END_OF_LIST() }, - .subsections = (const VMStateDescription * const []) { - &vmstate_esp_pdma, - NULL - } }; static void sysbus_esp_mem_write(void *opaque, hwaddr addr, @@ -1342,7 +1297,7 @@ static void sysbus_esp_pdma_write(void *opaque, hwaddr addr, esp_pdma_write(s, val); break; } - esp_pdma_cb(s); + esp_do_dma(s); } static uint64_t sysbus_esp_pdma_read(void *opaque, hwaddr addr, @@ -1363,7 +1318,7 @@ static uint64_t sysbus_esp_pdma_read(void *opaque, hwaddr addr, val = (val << 8) | esp_pdma_read(s); break; } - esp_pdma_cb(s); + esp_do_dma(s); return val; } diff --git a/include/hw/scsi/esp.h b/include/hw/scsi/esp.h index 0207fdd7a6..6f942864a6 100644 --- a/include/hw/scsi/esp.h +++ b/include/hw/scsi/esp.h @@ -51,7 +51,6 @@ struct ESPState { ESPDMAMemoryReadWriteFunc dma_memory_write; void *dma_opaque; void (*dma_cb)(ESPState *s); - uint8_t pdma_cb; uint8_t mig_version_id; @@ -150,11 +149,6 @@ struct SysBusESPState { #define TCHI_FAS100A 0x4 #define TCHI_AM53C974 0x12 -/* PDMA callbacks */ -enum pdma_cb { - DO_DMA_PDMA_CB = 4 -}; - void esp_dma_enable(ESPState *s, int irq, int level); void esp_request_cancelled(SCSIRequest *req); void esp_command_complete(SCSIRequest *req, size_t resid);