diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_debugfs.c | 242 |
1 files changed, 143 insertions, 99 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c index c4b67cf09f8f..8cf0b2625efc 100644 --- a/drivers/gpu/drm/xe/xe_gt_debugfs.c +++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c @@ -5,6 +5,8 @@ #include "xe_gt_debugfs.h" +#include <linux/debugfs.h> + #include <drm/drm_debugfs.h> #include <drm/drm_managed.h> @@ -18,193 +20,246 @@ #include "xe_lrc.h" #include "xe_macros.h" #include "xe_pat.h" +#include "xe_pm.h" #include "xe_reg_sr.h" #include "xe_reg_whitelist.h" #include "xe_uc_debugfs.h" #include "xe_wa.h" -static struct xe_gt *node_to_gt(struct drm_info_node *node) +/** + * xe_gt_debugfs_simple_show - A show callback for struct drm_info_list + * @m: the &seq_file + * @data: data used by the drm debugfs helpers + * + * This callback can be used in struct drm_info_list to describe debugfs + * files that are &xe_gt specific. + * + * It is assumed that those debugfs files will be created on directory entry + * which struct dentry d_inode->i_private points to &xe_gt. + * + * This function assumes that &m->private will be set to the &struct + * drm_info_node corresponding to the instance of the info on a given &struct + * drm_minor (see struct drm_info_list.show for details). + * + * This function also assumes that struct drm_info_list.data will point to the + * function code that will actually print a file content:: + * + * int (*print)(struct xe_gt *, struct drm_printer *) + * + * Example:: + * + * int foo(struct xe_gt *gt, struct drm_printer *p) + * { + * drm_printf(p, "GT%u\n", gt->info.id); + * return 0; + * } + * + * static const struct drm_info_list bar[] = { + * { name = "foo", .show = xe_gt_debugfs_simple_show, .data = foo }, + * }; + * + * dir = debugfs_create_dir("gt", parent); + * dir->d_inode->i_private = gt; + * drm_debugfs_create_files(bar, ARRAY_SIZE(bar), dir, minor); + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_gt_debugfs_simple_show(struct seq_file *m, void *data) { - return node->info_ent->data; + struct drm_printer p = drm_seq_file_printer(m); + struct drm_info_node *node = m->private; + struct dentry *parent = node->dent->d_parent; + struct xe_gt *gt = parent->d_inode->i_private; + int (*print)(struct xe_gt *, struct drm_printer *) = node->info_ent->data; + + if (WARN_ON(!print)) + return -EINVAL; + + return print(gt, &p); } -static int hw_engines(struct seq_file *m, void *data) +static int hw_engines(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); struct xe_device *xe = gt_to_xe(gt); - struct drm_printer p = drm_seq_file_printer(m); struct xe_hw_engine *hwe; enum xe_hw_engine_id id; int err; - xe_device_mem_access_get(xe); + xe_pm_runtime_get(xe); err = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL); if (err) { - xe_device_mem_access_put(xe); + xe_pm_runtime_put(xe); return err; } for_each_hw_engine(hwe, gt, id) - xe_hw_engine_print(hwe, &p); + xe_hw_engine_print(hwe, p); err = xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL); - xe_device_mem_access_put(xe); + xe_pm_runtime_put(xe); if (err) return err; return 0; } -static int force_reset(struct seq_file *m, void *data) +static int force_reset(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - + xe_pm_runtime_get(gt_to_xe(gt)); xe_gt_reset_async(gt); + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int sa_info(struct seq_file *m, void *data) +static int sa_info(struct xe_gt *gt, struct drm_printer *p) { - struct xe_tile *tile = gt_to_tile(node_to_gt(m->private)); - struct drm_printer p = drm_seq_file_printer(m); + struct xe_tile *tile = gt_to_tile(gt); - drm_suballoc_dump_debug_info(&tile->mem.kernel_bb_pool->base, &p, + xe_pm_runtime_get(gt_to_xe(gt)); + drm_suballoc_dump_debug_info(&tile->mem.kernel_bb_pool->base, p, tile->mem.kernel_bb_pool->gpu_addr); + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int topology(struct seq_file *m, void *data) +static int topology(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - struct drm_printer p = drm_seq_file_printer(m); - - xe_gt_topology_dump(gt, &p); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_gt_topology_dump(gt, p); + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int steering(struct seq_file *m, void *data) +static int steering(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - struct drm_printer p = drm_seq_file_printer(m); - - xe_gt_mcr_steering_dump(gt, &p); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_gt_mcr_steering_dump(gt, p); + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int ggtt(struct seq_file *m, void *data) +static int ggtt(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - struct drm_printer p = drm_seq_file_printer(m); + int ret; + + xe_pm_runtime_get(gt_to_xe(gt)); + ret = xe_ggtt_dump(gt_to_tile(gt)->mem.ggtt, p); + xe_pm_runtime_put(gt_to_xe(gt)); - return xe_ggtt_dump(gt_to_tile(gt)->mem.ggtt, &p); + return ret; } -static int register_save_restore(struct seq_file *m, void *data) +static int register_save_restore(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - struct drm_printer p = drm_seq_file_printer(m); struct xe_hw_engine *hwe; enum xe_hw_engine_id id; - xe_reg_sr_dump(>->reg_sr, &p); - drm_printf(&p, "\n"); + xe_pm_runtime_get(gt_to_xe(gt)); - drm_printf(&p, "Engine\n"); + xe_reg_sr_dump(>->reg_sr, p); + drm_printf(p, "\n"); + + drm_printf(p, "Engine\n"); for_each_hw_engine(hwe, gt, id) - xe_reg_sr_dump(&hwe->reg_sr, &p); - drm_printf(&p, "\n"); + xe_reg_sr_dump(&hwe->reg_sr, p); + drm_printf(p, "\n"); - drm_printf(&p, "LRC\n"); + drm_printf(p, "LRC\n"); for_each_hw_engine(hwe, gt, id) - xe_reg_sr_dump(&hwe->reg_lrc, &p); - drm_printf(&p, "\n"); + xe_reg_sr_dump(&hwe->reg_lrc, p); + drm_printf(p, "\n"); - drm_printf(&p, "Whitelist\n"); + drm_printf(p, "Whitelist\n"); for_each_hw_engine(hwe, gt, id) - xe_reg_whitelist_dump(&hwe->reg_whitelist, &p); + xe_reg_whitelist_dump(&hwe->reg_whitelist, p); + + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int workarounds(struct seq_file *m, void *data) +static int workarounds(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - struct drm_printer p = drm_seq_file_printer(m); - - xe_wa_dump(gt, &p); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_wa_dump(gt, p); + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int pat(struct seq_file *m, void *data) +static int pat(struct xe_gt *gt, struct drm_printer *p) { - struct xe_gt *gt = node_to_gt(m->private); - struct drm_printer p = drm_seq_file_printer(m); - - xe_pat_dump(gt, &p); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_pat_dump(gt, p); + xe_pm_runtime_put(gt_to_xe(gt)); return 0; } -static int rcs_default_lrc(struct seq_file *m, void *data) +static int rcs_default_lrc(struct xe_gt *gt, struct drm_printer *p) { - struct drm_printer p = drm_seq_file_printer(m); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_lrc_dump_default(p, gt, XE_ENGINE_CLASS_RENDER); + xe_pm_runtime_put(gt_to_xe(gt)); - xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_RENDER); return 0; } -static int ccs_default_lrc(struct seq_file *m, void *data) +static int ccs_default_lrc(struct xe_gt *gt, struct drm_printer *p) { - struct drm_printer p = drm_seq_file_printer(m); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_lrc_dump_default(p, gt, XE_ENGINE_CLASS_COMPUTE); + xe_pm_runtime_put(gt_to_xe(gt)); - xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_COMPUTE); return 0; } -static int bcs_default_lrc(struct seq_file *m, void *data) +static int bcs_default_lrc(struct xe_gt *gt, struct drm_printer *p) { - struct drm_printer p = drm_seq_file_printer(m); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_lrc_dump_default(p, gt, XE_ENGINE_CLASS_COPY); + xe_pm_runtime_put(gt_to_xe(gt)); - xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_COPY); return 0; } -static int vcs_default_lrc(struct seq_file *m, void *data) +static int vcs_default_lrc(struct xe_gt *gt, struct drm_printer *p) { - struct drm_printer p = drm_seq_file_printer(m); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_lrc_dump_default(p, gt, XE_ENGINE_CLASS_VIDEO_DECODE); + xe_pm_runtime_put(gt_to_xe(gt)); - xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_VIDEO_DECODE); return 0; } -static int vecs_default_lrc(struct seq_file *m, void *data) +static int vecs_default_lrc(struct xe_gt *gt, struct drm_printer *p) { - struct drm_printer p = drm_seq_file_printer(m); + xe_pm_runtime_get(gt_to_xe(gt)); + xe_lrc_dump_default(p, gt, XE_ENGINE_CLASS_VIDEO_ENHANCE); + xe_pm_runtime_put(gt_to_xe(gt)); - xe_lrc_dump_default(&p, node_to_gt(m->private), XE_ENGINE_CLASS_VIDEO_ENHANCE); return 0; } static const struct drm_info_list debugfs_list[] = { - {"hw_engines", hw_engines, 0}, - {"force_reset", force_reset, 0}, - {"sa_info", sa_info, 0}, - {"topology", topology, 0}, - {"steering", steering, 0}, - {"ggtt", ggtt, 0}, - {"register-save-restore", register_save_restore, 0}, - {"workarounds", workarounds, 0}, - {"pat", pat, 0}, - {"default_lrc_rcs", rcs_default_lrc}, - {"default_lrc_ccs", ccs_default_lrc}, - {"default_lrc_bcs", bcs_default_lrc}, - {"default_lrc_vcs", vcs_default_lrc}, - {"default_lrc_vecs", vecs_default_lrc}, + {"hw_engines", .show = xe_gt_debugfs_simple_show, .data = hw_engines}, + {"force_reset", .show = xe_gt_debugfs_simple_show, .data = force_reset}, + {"sa_info", .show = xe_gt_debugfs_simple_show, .data = sa_info}, + {"topology", .show = xe_gt_debugfs_simple_show, .data = topology}, + {"steering", .show = xe_gt_debugfs_simple_show, .data = steering}, + {"ggtt", .show = xe_gt_debugfs_simple_show, .data = ggtt}, + {"register-save-restore", .show = xe_gt_debugfs_simple_show, .data = register_save_restore}, + {"workarounds", .show = xe_gt_debugfs_simple_show, .data = workarounds}, + {"pat", .show = xe_gt_debugfs_simple_show, .data = pat}, + {"default_lrc_rcs", .show = xe_gt_debugfs_simple_show, .data = rcs_default_lrc}, + {"default_lrc_ccs", .show = xe_gt_debugfs_simple_show, .data = ccs_default_lrc}, + {"default_lrc_bcs", .show = xe_gt_debugfs_simple_show, .data = bcs_default_lrc}, + {"default_lrc_vcs", .show = xe_gt_debugfs_simple_show, .data = vcs_default_lrc}, + {"default_lrc_vecs", .show = xe_gt_debugfs_simple_show, .data = vecs_default_lrc}, }; void xe_gt_debugfs_register(struct xe_gt *gt) @@ -212,13 +267,11 @@ void xe_gt_debugfs_register(struct xe_gt *gt) struct xe_device *xe = gt_to_xe(gt); struct drm_minor *minor = gt_to_xe(gt)->drm.primary; struct dentry *root; - struct drm_info_list *local; char name[8]; - int i; xe_gt_assert(gt, minor->debugfs_root); - sprintf(name, "gt%d", gt->info.id); + snprintf(name, sizeof(name), "gt%d", gt->info.id); root = debugfs_create_dir(name, minor->debugfs_root); if (IS_ERR(root)) { drm_warn(&xe->drm, "Create GT directory failed"); @@ -226,22 +279,13 @@ void xe_gt_debugfs_register(struct xe_gt *gt) } /* - * Allocate local copy as we need to pass in the GT to the debugfs - * entry and drm_debugfs_create_files just references the drm_info_list - * passed in (e.g. can't define this on the stack). + * Store the xe_gt pointer as private data of the gt/ directory node + * so other GT specific attributes under that directory may refer to + * it by looking at its parent node private data. */ -#define DEBUGFS_SIZE (ARRAY_SIZE(debugfs_list) * sizeof(struct drm_info_list)) - local = drmm_kmalloc(&xe->drm, DEBUGFS_SIZE, GFP_KERNEL); - if (!local) - return; - - memcpy(local, debugfs_list, DEBUGFS_SIZE); -#undef DEBUGFS_SIZE - - for (i = 0; i < ARRAY_SIZE(debugfs_list); ++i) - local[i].data = gt; + root->d_inode->i_private = gt; - drm_debugfs_create_files(local, + drm_debugfs_create_files(debugfs_list, ARRAY_SIZE(debugfs_list), root, minor); |