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([2a02:810d:4b3f:de78:642:1aff:fe31:a19f]) by smtp.gmail.com with ESMTPSA id cf25-20020a170906b2d900b008b132c5ea47sm2144884ejb.153.2023.02.17.05.48.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Feb 2023 05:48:23 -0800 (PST) From: Danilo Krummrich To: airlied@gmail.com, daniel@ffwll.ch, tzimmermann@suse.de, mripard@kernel.org, corbet@lwn.net, christian.koenig@amd.com, bskeggs@redhat.com, Liam.Howlett@oracle.com, matthew.brost@intel.com, boris.brezillon@collabora.com, alexdeucher@gmail.com, ogabbay@kernel.org, bagasdotme@gmail.com, willy@infradead.org, jason@jlekstrand.net Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Danilo Krummrich Subject: [PATCH drm-next v2 06/16] drm: debugfs: provide infrastructure to dump a DRM GPU VA space Date: Fri, 17 Feb 2023 14:48:10 +0100 Message-Id: <20230217134820.14672-1-dakr@redhat.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230217134422.14116-1-dakr@redhat.com> References: <20230217134422.14116-1-dakr@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 977D710000D X-Stat-Signature: xipkrf4srcum1neukmxenkcc6y6t19h1 X-Rspam-User: X-HE-Tag: 1676641707-557448 X-HE-Meta: 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 jVJO10zm GDzTWk6FmlfI0Onp63Ee2K7BjxnuX2Gyatn5b0oq/WLBbe3plXQ4uk/Zl+EFhQhzEpO78FcOSDOflO6nCEF7RzddhOEN1dQ1jcYxtOwoTI3fhDmXxFE+xMREE5wpxOtlfO+znYHGY+mLLrBnhf/5WkYfRtliK18oB+SvhmJfH+uqqFMVxzLBELB0kd5O1MO5aqxKayZqKCW7vvn6YNsCqkGRrHqfnGqBq49bTggmGQx3cLa9mhx0956UPMGx5QksVJWdJl7ezmbvoJS2qDMeV8xM1rO1vRYIypxUhrvQFA2czXmv6cp1uNHEeu/1+xNs0z1FXWWuMTZMAdgI5q+fGyzUMFYUCLdH4KM87GIu84xuCUospDafLklowsbcYsG0JNRYImeJsDC+qrnK+HubROxgxGRILVdiNNqSjkw7x3YasvEk= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This commit adds a function to dump a DRM GPU VA space and a macro for drivers to register the struct drm_info_list 'gpuvas' entry. Most likely, most drivers might maintain one DRM GPU VA space per struct drm_file, but there might also be drivers not having a fixed relation between DRM GPU VA spaces and a DRM core infrastructure, hence we need the indirection via the driver iterating it's maintained DRM GPU VA spaces. Signed-off-by: Danilo Krummrich --- drivers/gpu/drm/drm_debugfs.c | 56 +++++++++++++++++++++++++++++++++++ include/drm/drm_debugfs.h | 25 ++++++++++++++++ 2 files changed, 81 insertions(+) diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 4f643a490dc3..0a8e3fdd5f6f 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -39,6 +39,7 @@ #include #include #include +#include #include "drm_crtc_internal.h" #include "drm_internal.h" @@ -175,6 +176,61 @@ static const struct file_operations drm_debugfs_fops = { .release = single_release, }; +/** + * drm_debugfs_gpuva_info - dump the given DRM GPU VA space + * @m: pointer to the &seq_file to write + * @mgr: the &drm_gpuva_manager representing the GPU VA space + * + * Dumps the GPU VA regions and mappings of a given DRM GPU VA manager. + * + * For each DRM GPU VA space drivers should call this function from their + * &drm_info_list's show callback. + * + * Returns: 0 on success, -ENODEV if the &mgr is not initialized + */ +int drm_debugfs_gpuva_info(struct seq_file *m, + struct drm_gpuva_manager *mgr) +{ + DRM_GPUVA_ITER(it, mgr); + DRM_GPUVA_REGION_ITER(__it, mgr); + + if (!mgr->name) + return -ENODEV; + + seq_printf(m, "DRM GPU VA space (%s)\n", mgr->name); + seq_puts (m, "\n"); + seq_puts (m, " VA regions | start | range | end | sparse\n"); + seq_puts (m, "------------------------------------------------------------------------------------\n"); + seq_printf(m, " VA space | 0x%016llx | 0x%016llx | 0x%016llx | -\n", + mgr->mm_start, mgr->mm_range, mgr->mm_start + mgr->mm_range); + seq_puts (m, "-----------------------------------------------------------------------------------\n"); + drm_gpuva_iter_for_each(__it) { + struct drm_gpuva_region *reg = __it.reg; + + if (reg == &mgr->kernel_alloc_region) { + seq_printf(m, " kernel node | 0x%016llx | 0x%016llx | 0x%016llx | -\n", + reg->va.addr, reg->va.range, reg->va.addr + reg->va.range); + continue; + } + + seq_printf(m, " | 0x%016llx | 0x%016llx | 0x%016llx | %s\n", + reg->va.addr, reg->va.range, reg->va.addr + reg->va.range, + reg->sparse ? "true" : "false"); + } + seq_puts(m, "\n"); + seq_puts(m, " VAs | start | range | end | object | object offset\n"); + seq_puts(m, "-------------------------------------------------------------------------------------------------------------\n"); + drm_gpuva_iter_for_each(it) { + struct drm_gpuva *va = it.va; + + seq_printf(m, " | 0x%016llx | 0x%016llx | 0x%016llx | 0x%016llx | 0x%016llx\n", + va->va.addr, va->va.range, va->va.addr + va->va.range, + (u64)va->gem.obj, va->gem.offset); + } + + return 0; +} +EXPORT_SYMBOL(drm_debugfs_gpuva_info); /** * drm_debugfs_create_files - Initialize a given set of debugfs files for DRM diff --git a/include/drm/drm_debugfs.h b/include/drm/drm_debugfs.h index 7616f457ce70..cb2c1956a214 100644 --- a/include/drm/drm_debugfs.h +++ b/include/drm/drm_debugfs.h @@ -34,6 +34,22 @@ #include #include + +#include + +/** + * DRM_DEBUGFS_GPUVA_INFO - &drm_info_list entry to dump a GPU VA space + * @show: the &drm_info_list's show callback + * @data: driver private data + * + * Drivers should use this macro to define a &drm_info_list entry to provide a + * debugfs file for dumping the GPU VA space regions and mappings. + * + * For each DRM GPU VA space drivers should call drm_debugfs_gpuva_info() from + * their @show callback. + */ +#define DRM_DEBUGFS_GPUVA_INFO(show, data) {"gpuvas", show, DRIVER_GEM_GPUVA, data} + /** * struct drm_info_list - debugfs info list entry * @@ -134,6 +150,9 @@ void drm_debugfs_add_file(struct drm_device *dev, const char *name, void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count); + +int drm_debugfs_gpuva_info(struct seq_file *m, + struct drm_gpuva_manager *mgr); #else static inline void drm_debugfs_create_files(const struct drm_info_list *files, int count, struct dentry *root, @@ -155,6 +174,12 @@ static inline void drm_debugfs_add_files(struct drm_device *dev, const struct drm_debugfs_info *files, int count) {} + +static inline int drm_debugfs_gpuva_info(struct seq_file *m, + struct drm_gpuva_manager *mgr) +{ + return 0; +} #endif #endif /* _DRM_DEBUGFS_H_ */ -- 2.39.1