From: Dave Airlie <airl...@redhat.com>
This moves the io lru tracking into the driver allocated structure.
Probably need to consider if we can move more stuff in there around the
nouveau only io_lru functionality.
---
drivers/gpu/drm/nouveau/nouveau_ttm.c | 24 +++++++++++++++++++++---
drivers/gpu/drm/ttm/ttm_bo.c | 11 ++++++++---
drivers/gpu/drm/ttm/ttm_bo_util.c | 24 +++++++++++++++---------
include/drm/ttm/ttm_bo_api.h | 3 +++
include/drm/ttm/ttm_bo_driver.h | 19 +++++++++++--------
5 files changed, 58 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c
b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 2aba2e245548..5e0008d98b07 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -31,6 +31,16 @@
#include <core/tegra.h>
+struct nouveau_resource_manager {
+ struct ttm_resource_manager manager;
+ struct ttm_resource_manager_io_lru io_lru;
+};
+
+static inline struct nouveau_resource_manager *to_mgr(struct
ttm_resource_manager *man)
+{
+ return container_of(man, struct nouveau_resource_manager, manager);
+}
+
static void
nouveau_manager_del(struct ttm_resource_manager *man, struct ttm_resource *reg)
{
@@ -63,9 +73,15 @@ nouveau_vram_manager_new(struct ttm_resource_manager *man,
return 0;
}
+static struct ttm_resource_manager_io_lru *nouveau_resource_io_lru(struct
ttm_resource_manager *man)
+{
+ return &to_mgr(man)->io_lru;
+}
+
const struct ttm_resource_manager_func nouveau_vram_manager = {
.get_node = nouveau_vram_manager_new,
.put_node = nouveau_manager_del,
+ .io_lru = nouveau_resource_io_lru,
};
static int
@@ -160,7 +176,8 @@ nouveau_ttm_init_vram(struct nouveau_drm *drm)
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
/* Some BARs do not support being ioremapped WC */
const u8 type = mmu->type[drm->ttm.type_vram].type;
- struct ttm_resource_manager *man = kzalloc(sizeof(struct
ttm_resource_manager), GFP_KERNEL);
+ struct nouveau_resource_manager *nman = kzalloc(sizeof(*nman),
GFP_KERNEL);
+ struct ttm_resource_manager *man = &nman->manager;
if (!man)
return -ENOMEM;
@@ -173,9 +190,9 @@ nouveau_ttm_init_vram(struct nouveau_drm *drm)
}
man->func = &nouveau_vram_manager;
- man->use_io_reserve_lru = true;
ttm_resource_manager_init(man);
+ ttm_resource_manager_io_lru_init(&nman->io_lru);
ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, man);
ttm_resource_manager_set_used(man, true);
return 0;
@@ -193,11 +210,12 @@ nouveau_ttm_fini_vram(struct nouveau_drm *drm)
struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev,
TTM_PL_VRAM);
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
+ struct nouveau_resource_manager *nman = to_mgr(man);
ttm_resource_manager_set_used(man, false);
ttm_resource_manager_force_list_clean(&drm->ttm.bdev, man);
ttm_resource_manager_cleanup(man);
ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, NULL);
- kfree(man);
+ kfree(nman);
} else
ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_VRAM);
}
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 74b7def25f91..e4aa6eb60a50 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1469,14 +1469,19 @@ int ttm_bo_evict_mm(struct ttm_bo_device *bdev,
unsigned mem_type)
}
EXPORT_SYMBOL(ttm_bo_evict_mm);
+void ttm_resource_manager_io_lru_init(struct ttm_resource_manager_io_lru
*io_lru)
+{
+ mutex_init(&io_lru->io_reserve_mutex);
+ INIT_LIST_HEAD(&io_lru->io_reserve_lru);
+}
+EXPORT_SYMBOL(ttm_resource_manager_io_lru_init);
+
void ttm_resource_manager_init(struct ttm_resource_manager *man)
{
unsigned i;
- man->use_io_reserve_lru = false;
- mutex_init(&man->io_reserve_mutex);
+
spin_lock_init(&man->move_lock);
- INIT_LIST_HEAD(&man->io_reserve_lru);
for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
INIT_LIST_HEAD(&man->lru[i]);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c
b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 496158acd5b9..137aab6c53ae 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -93,29 +93,33 @@ EXPORT_SYMBOL(ttm_bo_move_ttm);
int ttm_mem_io_lock(struct ttm_resource_manager *man, bool interruptible)
{
- if (likely(!man->use_io_reserve_lru))
+ struct ttm_resource_manager_io_lru *io_lru;
+ if (!man->func && !man->func->io_lru)
return 0;
+ io_lru = man->func->io_lru(man);
if (interruptible)
- return mutex_lock_interruptible(&man->io_reserve_mutex);
+ return mutex_lock_interruptible(&io_lru->io_reserve_mutex);
- mutex_lock(&man->io_reserve_mutex);
+ mutex_lock(&io_lru->io_reserve_mutex);
return 0;
}
void ttm_mem_io_unlock(struct ttm_resource_manager *man)
{
- if (likely(!man->use_io_reserve_lru))
+ struct ttm_resource_manager_io_lru *io_lru;
+ if (!man->func && !man->func->io_lru)
return;
- mutex_unlock(&man->io_reserve_mutex);
+ io_lru = man->func->io_lru(man);
+ mutex_unlock(&io_lru->io_reserve_mutex);
}
static int ttm_mem_io_evict(struct ttm_resource_manager *man)
{
struct ttm_buffer_object *bo;
-
- bo = list_first_entry_or_null(&man->io_reserve_lru,
+ struct ttm_resource_manager_io_lru *io_lru = man->func->io_lru(man);
+ bo = list_first_entry_or_null(&io_lru->io_reserve_lru,
struct ttm_buffer_object,
io_reserve_lru);
if (!bo)
@@ -173,9 +177,11 @@ int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo)
if (unlikely(ret != 0))
return ret;
mem->bus.io_reserved_vm = true;
- if (man->use_io_reserve_lru)
+ if (man->func && man->func->io_lru) {
+ struct ttm_resource_manager_io_lru *io_lru =
man->func->io_lru(man);
list_add_tail(&bo->io_reserve_lru,
- &man->io_reserve_lru);
+ &io_lru->io_reserve_lru);
+ }
return 0;
}
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 9570ed7d01bf..0861de24335c 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -56,6 +56,8 @@ struct ttm_lru_bulk_move;
struct ttm_resource_manager;
+struct ttm_resource_manager_io_lru;
+
/**
* struct ttm_bus_placement
*
@@ -542,6 +544,7 @@ int ttm_bo_create(struct ttm_bo_device *bdev, unsigned long
size,
*/
void ttm_resource_manager_init(struct ttm_resource_manager *man);
+void ttm_resource_manager_io_lru_init(struct ttm_resource_manager_io_lru
*io_lru);
/**
* ttm_bo_evict_mm
*
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index dc57445f90e6..7408ee01b6f3 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -46,6 +46,7 @@
#define TTM_MAX_BO_PRIORITY 4U
struct ttm_resource_manager;
+struct ttm_resource_manager_io_lru;
struct ttm_resource_manager_func {
/**
@@ -106,6 +107,8 @@ struct ttm_resource_manager_func {
*/
void (*debug)(struct ttm_resource_manager *man,
struct drm_printer *printer);
+
+ struct ttm_resource_manager_io_lru *(*io_lru)(struct
ttm_resource_manager *man);
};
/**
@@ -133,7 +136,14 @@ struct ttm_resource_manager_func {
* This structure is used to identify and manage memory types for a device.
*/
+struct ttm_resource_manager_io_lru {
+ /*
+ * Protected by @io_reserve_mutex:
+ */
+ struct list_head io_reserve_lru;
+ struct mutex io_reserve_mutex;
+};
struct ttm_resource_manager {
/*
@@ -144,15 +154,8 @@ struct ttm_resource_manager {
uint32_t available_caching;
uint32_t default_caching;
const struct ttm_resource_manager_func *func;
- struct mutex io_reserve_mutex;
- bool use_io_reserve_lru;
- spinlock_t move_lock;
- /*
- * Protected by @io_reserve_mutex:
- */
-
- struct list_head io_reserve_lru;
+ spinlock_t move_lock;
/*
* Protected by the global->lru_lock.
--
2.27.0
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