From patchwork Sat Sep 5 10:34:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikko Perttunen X-Patchwork-Id: 11758997 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 267EC746 for ; Sat, 5 Sep 2020 10:36:23 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F0AEC20757 for ; Sat, 5 Sep 2020 10:36:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=kapsi.fi header.i=@kapsi.fi header.b="XO+uVIZj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F0AEC20757 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 245596ED44; Sat, 5 Sep 2020 10:35:59 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.kapsi.fi (mail.kapsi.fi [IPv6:2001:67c:1be8::25]) by gabe.freedesktop.org (Postfix) with ESMTPS id 63C906ED3B for ; Sat, 5 Sep 2020 10:35:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kapsi.fi; s=20161220; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: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=GP8XULLqvQHBWLEsOEDRDZQ0///TIiYVbu3OBzkc7gU=; b=XO+uVIZjRU7bAEvrE2KqSzfzwn Z+1lOd932no5dyKzGFxWkxKI1gtKnJBbfkqs/xfTwUNY3A1uCxgeOfxmOf6C63i2hFd1gEfVyvcK+ cD7kb+aKR/2SZYw7jzWprd2zpp/1RN1UyM69SCrytceTwX2Ey0a9h0DvNdJwscn2CM6KpvQIwZu60 l7DWXE7O+e19SkigbznWykGMfWYq1MWKpMiih9f+olNdlcusNJqYZ1s7Pf5RZIaeecgkvhdCXawdv A413h1sjl5v+Zsa5wrmt4eavU+wBEyZSjgLSJP3ZfUz7Ur/xcLHIDbrxlxoZOPSWoEswQhDJbasmV 8GMxiJHg==; Received: from dsl-hkibng22-54faab-65.dhcp.inet.fi ([84.250.171.65] helo=toshino.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1kEVXy-0003SS-86; Sat, 05 Sep 2020 13:35:50 +0300 From: Mikko Perttunen To: thierry.reding@gmail.com, jonathanh@nvidia.com, digetx@gmail.com, airlied@linux.ie, daniel@ffwll.ch Subject: [RFC PATCH v2 12/17] gpu: host1x: Add support for syncpoint waits in CDMA pushbuffer Date: Sat, 5 Sep 2020 13:34:15 +0300 Message-Id: <20200905103420.3021852-13-mperttunen@nvidia.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200905103420.3021852-1-mperttunen@nvidia.com> References: <20200905103420.3021852-1-mperttunen@nvidia.com> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 84.250.171.65 X-SA-Exim-Mail-From: mperttunen@nvidia.com X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-tegra@vger.kernel.org, talho@nvidia.com, bhuntsman@nvidia.com, dri-devel@lists.freedesktop.org, Mikko Perttunen Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add support for inserting syncpoint waits in the CDMA pushbuffer. These waits need to be done in HOST1X class, while gather submitted by the application execute in engine class. Support is added by converting the gather list of job into a command list that can include both gathers and waits. When the job is submitted, these commands are pushed as the appropriate opcodes on the CDMA pushbuffer. Signed-off-by: Mikko Perttunen --- drivers/gpu/host1x/hw/channel_hw.c | 51 +++++++++++++++-------- drivers/gpu/host1x/hw/debug_hw.c | 9 +++- drivers/gpu/host1x/job.c | 67 +++++++++++++++++++++--------- drivers/gpu/host1x/job.h | 14 +++++++ include/linux/host1x.h | 5 ++- 5 files changed, 105 insertions(+), 41 deletions(-) diff --git a/drivers/gpu/host1x/hw/channel_hw.c b/drivers/gpu/host1x/hw/channel_hw.c index 145746c6f6fb..57e99de528de 100644 --- a/drivers/gpu/host1x/hw/channel_hw.c +++ b/drivers/gpu/host1x/hw/channel_hw.c @@ -55,31 +55,46 @@ static void submit_gathers(struct host1x_job *job) #endif unsigned int i; - for (i = 0; i < job->num_gathers; i++) { - struct host1x_job_gather *g = &job->gathers[i]; - dma_addr_t addr = g->base + g->offset; - u32 op2, op3; + for (i = 0; i < job->num_cmds; i++) { + struct host1x_job_cmd *cmd = &job->cmds[i]; - op2 = lower_32_bits(addr); - op3 = upper_32_bits(addr); + if (cmd->is_wait) { + /* TODO use modern wait */ + host1x_cdma_push(cdma, + host1x_opcode_setclass(HOST1X_CLASS_HOST1X, + host1x_uclass_wait_syncpt_r(), 1), + host1x_class_host_wait_syncpt(cmd->wait.id, + cmd->wait.threshold)); + host1x_cdma_push( + cdma, host1x_opcode_setclass(job->class, 0, 0), + HOST1X_OPCODE_NOP); + } else { + struct host1x_job_gather *g = &cmd->gather; - trace_write_gather(cdma, g->bo, g->offset, g->words); + dma_addr_t addr = g->base + g->offset; + u32 op2, op3; - if (op3 != 0) { + op2 = lower_32_bits(addr); + op3 = upper_32_bits(addr); + + trace_write_gather(cdma, g->bo, g->offset, g->words); + + if (op3 != 0) { #if HOST1X_HW >= 6 - u32 op1 = host1x_opcode_gather_wide(g->words); - u32 op4 = HOST1X_OPCODE_NOP; + u32 op1 = host1x_opcode_gather_wide(g->words); + u32 op4 = HOST1X_OPCODE_NOP; - host1x_cdma_push_wide(cdma, op1, op2, op3, op4); + host1x_cdma_push_wide(cdma, op1, op2, op3, op4); #else - dev_err(dev, "invalid gather for push buffer %pad\n", - &addr); - continue; + dev_err(dev, "invalid gather for push buffer %pad\n", + &addr); + continue; #endif - } else { - u32 op1 = host1x_opcode_gather(g->words); + } else { + u32 op1 = host1x_opcode_gather(g->words); - host1x_cdma_push(cdma, op1, op2); + host1x_cdma_push(cdma, op1, op2); + } } } } @@ -126,7 +141,7 @@ static int channel_submit(struct host1x_job *job) struct host1x *host = dev_get_drvdata(ch->dev->parent); trace_host1x_channel_submit(dev_name(ch->dev), - job->num_gathers, job->num_relocs, + job->num_cmds, job->num_relocs, job->syncpt->id, job->syncpt_incrs); /* TODO this is racy */ diff --git a/drivers/gpu/host1x/hw/debug_hw.c b/drivers/gpu/host1x/hw/debug_hw.c index ceb48229d14b..35952fd5597e 100644 --- a/drivers/gpu/host1x/hw/debug_hw.c +++ b/drivers/gpu/host1x/hw/debug_hw.c @@ -208,10 +208,15 @@ static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma) job->first_get, job->timeout, job->num_slots, job->num_unpins); - for (i = 0; i < job->num_gathers; i++) { - struct host1x_job_gather *g = &job->gathers[i]; + for (i = 0; i < job->num_cmds; i++) { + struct host1x_job_gather *g; u32 *mapped; + if (job->cmds[i].is_wait) + continue; + + g = &job->cmds[i].gather; + if (job->gather_copy_mapped) mapped = (u32 *)job->gather_copy_mapped; else diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index acf322beb56c..ac4091596811 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -38,7 +38,7 @@ struct host1x_job *host1x_job_alloc(struct host1x_channel *ch, total = sizeof(struct host1x_job) + (u64)num_relocs * sizeof(struct host1x_reloc) + (u64)num_unpins * sizeof(struct host1x_job_unpin_data) + - (u64)num_cmdbufs * sizeof(struct host1x_job_gather) + + (u64)num_cmdbufs * sizeof(struct host1x_job_cmd) + (u64)num_unpins * sizeof(dma_addr_t) + (u64)num_unpins * sizeof(u32 *); if (total > ULONG_MAX) @@ -57,8 +57,8 @@ struct host1x_job *host1x_job_alloc(struct host1x_channel *ch, mem += num_relocs * sizeof(struct host1x_reloc); job->unpins = num_unpins ? mem : NULL; mem += num_unpins * sizeof(struct host1x_job_unpin_data); - job->gathers = num_cmdbufs ? mem : NULL; - mem += num_cmdbufs * sizeof(struct host1x_job_gather); + job->cmds = num_cmdbufs ? mem : NULL; + mem += num_cmdbufs * sizeof(struct host1x_job_cmd); job->addr_phys = num_unpins ? mem : NULL; job->reloc_addr_phys = job->addr_phys; @@ -101,22 +101,35 @@ EXPORT_SYMBOL(host1x_job_put); void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *bo, unsigned int words, unsigned int offset) { - struct host1x_job_gather *gather = &job->gathers[job->num_gathers]; + struct host1x_job_gather *gather = &job->cmds[job->num_cmds].gather; gather->words = words; gather->bo = bo; gather->offset = offset; - job->num_gathers++; + job->num_cmds++; } EXPORT_SYMBOL(host1x_job_add_gather); +void host1x_job_add_wait(struct host1x_job *job, u32 id, u32 thresh) +{ + struct host1x_job_cmd *cmd = &job->cmds[job->num_cmds]; + + cmd->is_wait = true; + cmd->wait.id = id; + cmd->wait.threshold = thresh; + + job->num_cmds++; +} +EXPORT_SYMBOL(host1x_job_add_wait); + static unsigned int pin_job(struct host1x *host, struct host1x_job *job) { struct host1x_client *client = job->client; struct device *dev = client->dev; struct host1x_job_gather *g; struct iommu_domain *domain; + struct sg_table *sgt; unsigned int i; int err; @@ -126,7 +139,6 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) for (i = 0; i < job->num_relocs; i++) { struct host1x_reloc *reloc = &job->relocs[i]; dma_addr_t phys_addr, *phys; - struct sg_table *sgt; reloc->target.bo = host1x_bo_get(reloc->target.bo); if (!reloc->target.bo) { @@ -204,17 +216,20 @@ static unsigned int pin_job(struct host1x *host, struct host1x_job *job) if (IS_ENABLED(CONFIG_TEGRA_HOST1X_FIREWALL)) return 0; - for (i = 0; i < job->num_gathers; i++) { + for (i = 0; i < job->num_cmds; i++) { size_t gather_size = 0; struct scatterlist *sg; - struct sg_table *sgt; dma_addr_t phys_addr; unsigned long shift; struct iova *alloc; dma_addr_t *phys; unsigned int j; - g = &job->gathers[i]; + if (job->cmds[i].is_wait) + continue; + + g = &job->cmds[i].gather; + g->bo = host1x_bo_get(g->bo); if (!g->bo) { err = -EINVAL; @@ -550,8 +565,13 @@ static inline int copy_gathers(struct device *host, struct host1x_job *job, fw.num_relocs = job->num_relocs; fw.class = job->class; - for (i = 0; i < job->num_gathers; i++) { - struct host1x_job_gather *g = &job->gathers[i]; + for (i = 0; i < job->num_cmds; i++) { + struct host1x_job_gather *g; + + if (job->cmds[i].is_wait) + continue; + + g = &job->cmds[i].gather; size += g->words * sizeof(u32); } @@ -573,10 +593,14 @@ static inline int copy_gathers(struct device *host, struct host1x_job *job, job->gather_copy_size = size; - for (i = 0; i < job->num_gathers; i++) { - struct host1x_job_gather *g = &job->gathers[i]; + for (i = 0; i < job->num_cmds; i++) { + struct host1x_job_gather *g; void *gather; + if (job->cmds[i].is_wait) + continue; + g = &job->cmds[i].gather; + /* Copy the gather */ gather = host1x_bo_mmap(g->bo); memcpy(job->gather_copy_mapped + offset, gather + g->offset, @@ -619,8 +643,12 @@ int host1x_job_pin(struct host1x_job *job, struct device *dev) } /* patch gathers */ - for (i = 0; i < job->num_gathers; i++) { - struct host1x_job_gather *g = &job->gathers[i]; + for (i = 0; i < job->num_cmds; i++) { + struct host1x_job_gather *g; + + if (job->cmds[i].is_wait) + continue; + g = &job->cmds[i].gather; /* process each gather mem only once */ if (g->handled) @@ -630,10 +658,11 @@ int host1x_job_pin(struct host1x_job *job, struct device *dev) if (!IS_ENABLED(CONFIG_TEGRA_HOST1X_FIREWALL)) g->base = job->gather_addr_phys[i]; - for (j = i + 1; j < job->num_gathers; j++) { - if (job->gathers[j].bo == g->bo) { - job->gathers[j].handled = true; - job->gathers[j].base = g->base; + for (j = i + 1; j < job->num_cmds; j++) { + if (!job->cmds[j].is_wait && + job->cmds[j].gather.bo == g->bo) { + job->cmds[j].gather.handled = true; + job->cmds[j].gather.base = g->base; } } diff --git a/drivers/gpu/host1x/job.h b/drivers/gpu/host1x/job.h index 94bc2e4ae241..33adfaede842 100644 --- a/drivers/gpu/host1x/job.h +++ b/drivers/gpu/host1x/job.h @@ -18,6 +18,20 @@ struct host1x_job_gather { bool handled; }; +struct host1x_job_wait { + u32 id; + u32 threshold; +}; + +struct host1x_job_cmd { + bool is_wait; + + union { + struct host1x_job_gather gather; + struct host1x_job_wait wait; + }; +}; + struct host1x_job_unpin_data { struct host1x_bo *bo; struct sg_table *sgt; diff --git a/include/linux/host1x.h b/include/linux/host1x.h index cabc5bef5bae..78ea56230b97 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -211,8 +211,8 @@ struct host1x_job { struct host1x_client *client; /* Gathers and their memory */ - struct host1x_job_gather *gathers; - unsigned int num_gathers; + struct host1x_job_cmd *cmds; + unsigned int num_cmds; /* Array of handles to be pinned & unpinned */ struct host1x_reloc *relocs; @@ -271,6 +271,7 @@ struct host1x_job *host1x_job_alloc(struct host1x_channel *ch, u32 num_cmdbufs, u32 num_relocs); void host1x_job_add_gather(struct host1x_job *job, struct host1x_bo *bo, unsigned int words, unsigned int offset); +void host1x_job_add_wait(struct host1x_job *job, u32 id, u32 thresh); struct host1x_job *host1x_job_get(struct host1x_job *job); void host1x_job_put(struct host1x_job *job); int host1x_job_pin(struct host1x_job *job, struct device *dev);