[PATCH v2] drm/amdgpu: Add debugfs entry for printing VM info
Mihir Patel
mihir.patel at amd.com
Fri Oct 9 11:40:25 UTC 2020
From: Mihir Bhogilal Patel <Mihir.Patel at amd.com>
Create new debugfs entry to print memory info using VM buffer
objects.
Note: Early upload for discussion and review
Pending:
- Add proper locking
- Print UID information
- Consolidated memory utilization info like total, swap etc.
V2: Added Common function for printing BO info.
Dump more VM lists for evicted, moved, relocated, invalidated.
Removed dumping VM mapped BOs.
Signed-off-by: Mihir Bhogilal Patel <Mihir.Patel at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 26 +++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 69 ++---------------
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 74 ++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 2 +
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 86 +++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 4 +
6 files changed, 199 insertions(+), 62 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 2d125b8b15ee..1986b688f046 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1335,11 +1335,37 @@ static int amdgpu_debugfs_evict_gtt(struct seq_file *m, void *data)
return 0;
}
+static int amdgpu_debugfs_vm_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *)m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_file *file;
+ int r;
+
+ r = mutex_lock_interruptible(&dev->filelist_mutex);
+ if (r)
+ return r;
+
+ list_for_each_entry(file, &dev->filelist, lhead) {
+ struct amdgpu_fpriv *fpriv = file->driver_priv;
+ struct amdgpu_vm *vm = &fpriv->vm;
+
+ seq_printf(m, "pid:%d\tProcess:%s ----------\n",
+ vm->task_info.pid, vm->task_info.process_name);
+ amdgpu_debugfs_vm_bo_info(vm, m);
+ }
+
+ mutex_unlock(&dev->filelist_mutex);
+
+ return 0;
+}
+
static const struct drm_info_list amdgpu_debugfs_list[] = {
{"amdgpu_vbios", amdgpu_debugfs_get_vbios_dump},
{"amdgpu_test_ib", &amdgpu_debugfs_test_ib},
{"amdgpu_evict_vram", &amdgpu_debugfs_evict_vram},
{"amdgpu_evict_gtt", &amdgpu_debugfs_evict_gtt},
+ {"amdgpu_vm_info", &amdgpu_debugfs_vm_info},
};
static void amdgpu_ib_preempt_fences_swap(struct amdgpu_ring *ring,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index f4c2e2e75b8f..f009d17c0aca 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -826,67 +826,6 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv,
}
#if defined(CONFIG_DEBUG_FS)
-
-#define amdgpu_debugfs_gem_bo_print_flag(m, bo, flag) \
- if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
- seq_printf((m), " " #flag); \
- }
-
-static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
-{
- struct drm_gem_object *gobj = ptr;
- struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
- struct seq_file *m = data;
-
- struct dma_buf_attachment *attachment;
- struct dma_buf *dma_buf;
- unsigned domain;
- const char *placement;
- unsigned pin_count;
-
- domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
- switch (domain) {
- case AMDGPU_GEM_DOMAIN_VRAM:
- placement = "VRAM";
- break;
- case AMDGPU_GEM_DOMAIN_GTT:
- placement = " GTT";
- break;
- case AMDGPU_GEM_DOMAIN_CPU:
- default:
- placement = " CPU";
- break;
- }
- seq_printf(m, "\t0x%08x: %12ld byte %s",
- id, amdgpu_bo_size(bo), placement);
-
- pin_count = READ_ONCE(bo->pin_count);
- if (pin_count)
- seq_printf(m, " pin count %d", pin_count);
-
- dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
- attachment = READ_ONCE(bo->tbo.base.import_attach);
-
- if (attachment)
- seq_printf(m, " imported from %p%s", dma_buf,
- attachment->peer2peer ? " P2P" : "");
- else if (dma_buf)
- seq_printf(m, " exported as %p", dma_buf);
-
- amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, NO_CPU_ACCESS);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, CPU_GTT_USWC);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CLEARED);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, SHADOW);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, VM_ALWAYS_VALID);
- amdgpu_debugfs_gem_bo_print_flag(m, bo, EXPLICIT_SYNC);
-
- seq_printf(m, "\n");
-
- return 0;
-}
-
static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
@@ -900,6 +839,8 @@ static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
list_for_each_entry(file, &dev->filelist, lhead) {
struct task_struct *task;
+ struct drm_gem_object *gobj;
+ int id;
/*
* Although we have a valid reference on file->pid, that does
@@ -914,7 +855,11 @@ static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
rcu_read_unlock();
spin_lock(&file->table_lock);
- idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m);
+ idr_for_each_entry(&file->object_idr, gobj, id) {
+ struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
+
+ amdgpu_debugfs_print_bo_info(id, bo, m);
+ }
spin_unlock(&file->table_lock);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 2ce79bccfc30..c6172a6e6877 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1528,3 +1528,77 @@ uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,
}
return domain;
}
+
+#if defined(CONFIG_DEBUG_FS)
+#define amdgpu_debugfs_vm_bo_print_flag(m, bo, flag) \
+ do { \
+ if (bo->flags & (AMDGPU_GEM_CREATE_ ## flag)) { \
+ seq_printf((m), " " #flag); \
+ } \
+ } while (0)
+
+/**
+ * amdgpu_debugfs_print_bo_info - print BO info in debugfs file
+ *
+ * @id: Index or Id of the BO
+ * @bo: Requested BO for printing info
+ * @data: debugfs file
+ *
+ * Print BO information in debugfs file
+ *
+ * Returns:
+ * Size of the BO in bytes.
+ */
+unsigned long amdgpu_debugfs_print_bo_info(int id, struct amdgpu_bo *bo, struct seq_file *m)
+{
+ struct dma_buf_attachment *attachment;
+ struct dma_buf *dma_buf;
+ unsigned int domain;
+ const char *placement;
+ unsigned int pin_count;
+ unsigned long size;
+
+ domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
+ switch (domain) {
+ case AMDGPU_GEM_DOMAIN_VRAM:
+ placement = "VRAM";
+ break;
+ case AMDGPU_GEM_DOMAIN_GTT:
+ placement = " GTT";
+ break;
+ case AMDGPU_GEM_DOMAIN_CPU:
+ default:
+ placement = " CPU";
+ break;
+ }
+
+ size = amdgpu_bo_size(bo);
+ seq_printf(m, "\t\t0x%08x: %12ld byte %s",
+ id++, size, placement);
+
+ pin_count = READ_ONCE(bo->pin_count);
+ if (pin_count)
+ seq_printf(m, " pin count %d", pin_count);
+
+ dma_buf = READ_ONCE(bo->tbo.base.dma_buf);
+ attachment = READ_ONCE(bo->tbo.base.import_attach);
+
+ if (attachment)
+ seq_printf(m, " imported from %p", dma_buf);
+ else if (dma_buf)
+ seq_printf(m, " exported as %p", dma_buf);
+
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, CPU_ACCESS_REQUIRED);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, NO_CPU_ACCESS);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, CPU_GTT_USWC);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, VRAM_CLEARED);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, SHADOW);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, VRAM_CONTIGUOUS);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, VM_ALWAYS_VALID);
+ amdgpu_debugfs_vm_bo_print_flag(m, bo, EXPLICIT_SYNC);
+
+ seq_puts(m, "\n");
+
+ return size;
+}
+#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index afa5189dba7d..3d2a9515f462 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -330,6 +330,8 @@ void amdgpu_sa_bo_free(struct amdgpu_device *adev,
#if defined(CONFIG_DEBUG_FS)
void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager,
struct seq_file *m);
+unsigned long amdgpu_debugfs_print_bo_info(int id, struct amdgpu_bo *bo,
+ struct seq_file *m);
#endif
int amdgpu_debugfs_sa_init(struct amdgpu_device *adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 3cd949aad500..820c980467f2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -3392,3 +3392,89 @@ bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, unsigned int pasid,
return false;
}
+
+#if defined(CONFIG_DEBUG_FS)
+/**
+ * amdgpu_debugfs_vm_bo_info - print BO info for the VM
+ *
+ * @vm: Requested VM for printing BO info
+ * @data: debugfs file
+ *
+ * Print BO information in debugfs file for the VM
+ */
+void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
+{
+ struct amdgpu_bo_va *bo_va, *tmp;
+ unsigned long long total_idle_size = 0;
+ unsigned long long total_evicted_size = 0;
+ unsigned long long total_relocated_size = 0;
+ unsigned long long total_moved_size = 0;
+ unsigned long long total_invalidated_size = 0;
+ unsigned int total_idle_objs = 0;
+ unsigned int total_evicted_objs = 0;
+ unsigned int total_relocated_objs = 0;
+ unsigned int total_moved_objs = 0;
+ unsigned int total_invalidated_objs = 0;
+ unsigned int id = 0;
+
+ /* Print info for Idle BOs */
+ seq_puts(m, "\tIdle BOs:\n");
+ list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status) {
+ if (bo_va && bo_va->base.bo)
+ total_idle_size += amdgpu_debugfs_print_bo_info(id++,
+ bo_va->base.bo, m);
+ }
+ total_idle_objs = id;
+ id = 0;
+
+ /* Print info for Evicted BOs */
+ seq_puts(m, "\tEvicted BOs:\n");
+ list_for_each_entry_safe(bo_va, tmp, &vm->evicted, base.vm_status) {
+ if (bo_va && bo_va->base.bo)
+ total_evicted_size += amdgpu_debugfs_print_bo_info(id++,
+ bo_va->base.bo, m);
+ }
+ total_evicted_objs = id;
+ id = 0;
+
+ /* Print info for Relocated BOs */
+ seq_puts(m, "\tRelocated BOs:\n");
+ list_for_each_entry_safe(bo_va, tmp, &vm->relocated, base.vm_status) {
+ if (bo_va && bo_va->base.bo)
+ total_relocated_size += amdgpu_debugfs_print_bo_info(id++,
+ bo_va->base.bo, m);
+ }
+ total_relocated_objs = id;
+ id = 0;
+
+ /* Print info for Moved BOs */
+ seq_puts(m, "\tMoved BOs:\n");
+ list_for_each_entry_safe(bo_va, tmp, &vm->moved, base.vm_status) {
+ if (bo_va && bo_va->base.bo)
+ total_moved_size += amdgpu_debugfs_print_bo_info(id++,
+ bo_va->base.bo, m);
+ }
+ total_moved_objs = id;
+ id = 0;
+
+ /* Print info for Invalidated BOs */
+ seq_puts(m, "\tInvalidated BOs:\n");
+ list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, base.vm_status) {
+ if (bo_va && bo_va->base.bo)
+ total_invalidated_size += amdgpu_debugfs_print_bo_info(id++,
+ bo_va->base.bo, m);
+ }
+ total_invalidated_objs = id;
+
+ seq_printf(m, "\tTotal idle size: %12lld\tobjs:\t%d\n", total_idle_size,
+ total_idle_objs);
+ seq_printf(m, "\tTotal evicted size: %12lld\tobjs:\t%d\n", total_evicted_size,
+ total_evicted_objs);
+ seq_printf(m, "\tTotal relocated size: %12lld\tobjs:\t%d\n", total_relocated_size,
+ total_relocated_objs);
+ seq_printf(m, "\tTotal moved size: %12lld\tobjs:\t%d\n", total_moved_size,
+ total_moved_objs);
+ seq_printf(m, "\tTotal invalidated size: %12lld\tobjs:\t%d\n", total_invalidated_size,
+ total_invalidated_objs);
+}
+#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 7c46937c1c0e..74cc14179c41 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -441,4 +441,8 @@ void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
struct amdgpu_vm *vm);
void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo);
+#if defined(CONFIG_DEBUG_FS)
+void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m);
+#endif
+
#endif
--
2.17.1
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