diff options
Diffstat (limited to 'drivers/gpu/drm/drm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/drm_debugfs.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index 4855230ba2c6..2de43ff3ce0a 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -31,6 +31,7 @@ #include <drm/drm_atomic.h> #include <drm/drm_auth.h> +#include <drm/drm_bridge.h> #include <drm/drm_client.h> #include <drm/drm_debugfs.h> #include <drm/drm_device.h> @@ -39,6 +40,7 @@ #include <drm/drm_file.h> #include <drm/drm_gem.h> #include <drm/drm_managed.h> +#include <drm/drm_gpuva_mgr.h> #include "drm_crtc_internal.h" #include "drm_internal.h" @@ -175,6 +177,45 @@ 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 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) +{ + struct drm_gpuva *va, *kva = &mgr->kernel_alloc_node; + + if (!mgr->name) + return -ENODEV; + + seq_printf(m, "DRM GPU VA space (%s) [0x%016llx;0x%016llx]\n", + mgr->name, mgr->mm_start, mgr->mm_start + mgr->mm_range); + seq_printf(m, "Kernel reserved node [0x%016llx;0x%016llx]\n", + kva->va.addr, kva->va.addr + kva->va.range); + seq_puts(m, "\n"); + seq_puts(m, " VAs | start | range | end | object | object offset\n"); + seq_puts(m, "-------------------------------------------------------------------------------------------------------------\n"); + drm_gpuva_for_each_va(va, mgr) { + if (unlikely(va == kva)) + continue; + + 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)(uintptr_t)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 @@ -234,6 +275,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id, if (drm_drv_uses_atomic_modeset(dev)) { drm_atomic_debugfs_init(minor); + drm_bridge_debugfs_init(minor); } if (drm_core_check_feature(dev, DRIVER_MODESET)) { |