[PATCH 14/15] drm/hisilicon: Convert hibmc-drm driver to |struct drm_gem_ttm_object|
Thomas Zimmermann
tzimmermann at suse.de
Mon Apr 8 09:21:43 UTC 2019
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/hisilicon/hibmc/Kconfig | 1 +
.../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 19 +-
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 4 +-
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 25 +--
.../gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c | 30 +--
drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 210 +-----------------
6 files changed, 42 insertions(+), 247 deletions(-)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/Kconfig b/drivers/gpu/drm/hisilicon/hibmc/Kconfig
index c7129dc3bdfc..98fc7d546d2a 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/Kconfig
+++ b/drivers/gpu/drm/hisilicon/hibmc/Kconfig
@@ -3,6 +3,7 @@ config DRM_HISI_HIBMC
depends on DRM && PCI && MMU
select DRM_KMS_HELPER
select DRM_TTM
+ select DRM_GEM_TTM_HELPER
help
Choose this option if you have a Hisilicon Hibmc soc chipset.
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
index 9316b724e7a2..86951de4aa12 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
@@ -96,27 +96,32 @@ static void hibmc_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *state = plane->state;
u32 reg;
int ret;
- u64 gpu_addr = 0;
+ s64 gpu_addr = 0;
unsigned int line_l;
struct hibmc_drm_private *priv = plane->dev->dev_private;
struct hibmc_framebuffer *hibmc_fb;
- struct hibmc_bo *bo;
+ struct drm_gem_ttm_object *gbo;
if (!state->fb)
return;
hibmc_fb = to_hibmc_framebuffer(state->fb);
- bo = gem_to_hibmc_bo(hibmc_fb->obj);
- ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
+ gbo = drm_gem_ttm_of_gem(hibmc_fb->obj);
+ ret = drm_gem_ttm_reserve(gbo, false);
if (ret) {
DRM_ERROR("failed to reserve ttm_bo: %d", ret);
return;
}
- ret = hibmc_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
- ttm_bo_unreserve(&bo->bo);
+ ret = drm_gem_ttm_pin(gbo, TTM_PL_FLAG_VRAM);
+ drm_gem_ttm_unreserve(gbo);
if (ret) {
- DRM_ERROR("failed to pin hibmc_bo: %d", ret);
+ DRM_ERROR("failed to pin bo: %d", ret);
+ return;
+ }
+ gpu_addr = drm_gem_ttm_vram_offset(gbo);
+ if (gpu_addr < 0) {
+ drm_gem_ttm_unpin(gbo);
return;
}
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 8ed94fcd42a7..cc6ab66ec9d1 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -63,9 +63,9 @@ static struct drm_driver hibmc_driver = {
.desc = "hibmc drm driver",
.major = 1,
.minor = 0,
- .gem_free_object_unlocked = hibmc_gem_free_object,
+ .gem_free_object_unlocked = drm_gem_ttm_driver_gem_free_object_unlocked,
.dumb_create = hibmc_dumb_create,
- .dumb_map_offset = hibmc_dumb_mmap_offset,
+ .dumb_map_offset = drm_gem_ttm_driver_dumb_mmap_offset,
.irq_handler = hibmc_drm_interrupt,
};
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index 0a381c22de26..a46fa0474b59 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
@@ -23,6 +23,7 @@
#include <drm/drm_atomic.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem.h>
+#include <drm/drm_gem_ttm_helper.h>
#include <drm/ttm/ttm_bo_driver.h>
struct hibmc_framebuffer {
@@ -59,25 +60,6 @@ struct hibmc_drm_private {
#define to_hibmc_framebuffer(x) container_of(x, struct hibmc_framebuffer, fb)
-struct hibmc_bo {
- struct ttm_buffer_object bo;
- struct ttm_placement placement;
- struct ttm_bo_kmap_obj kmap;
- struct drm_gem_object gem;
- struct ttm_place placements[3];
- int pin_count;
-};
-
-static inline struct hibmc_bo *hibmc_bo(struct ttm_buffer_object *bo)
-{
- return container_of(bo, struct hibmc_bo, bo);
-}
-
-static inline struct hibmc_bo *gem_to_hibmc_bo(struct drm_gem_object *gem)
-{
- return container_of(gem, struct hibmc_bo, gem);
-}
-
void hibmc_set_power_mode(struct hibmc_drm_private *priv,
unsigned int power_mode);
void hibmc_set_current_gate(struct hibmc_drm_private *priv,
@@ -97,13 +79,8 @@ hibmc_framebuffer_init(struct drm_device *dev,
int hibmc_mm_init(struct hibmc_drm_private *hibmc);
void hibmc_mm_fini(struct hibmc_drm_private *hibmc);
-int hibmc_bo_pin(struct hibmc_bo *bo, u32 pl_flag, u64 *gpu_addr);
-int hibmc_bo_unpin(struct hibmc_bo *bo);
-void hibmc_gem_free_object(struct drm_gem_object *obj);
int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args);
-int hibmc_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
- u32 handle, u64 *offset);
int hibmc_mmap(struct file *filp, struct vm_area_struct *vma);
extern const struct drm_mode_config_funcs hibmc_mode_funcs;
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
index 8026859aa07d..452e2b820821 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c
@@ -66,7 +66,8 @@ static int hibmc_drm_fb_create(struct drm_fb_helper *helper,
int ret1;
size_t size;
unsigned int bytes_per_pixel;
- struct hibmc_bo *bo = NULL;
+ struct drm_gem_ttm_object *gbo = NULL;
+ void *base;
DRM_DEBUG_DRIVER("surface width(%d), height(%d) and bpp(%d)\n",
sizes->surface_width, sizes->surface_height,
@@ -88,26 +89,27 @@ static int hibmc_drm_fb_create(struct drm_fb_helper *helper,
return -ENOMEM;
}
- bo = gem_to_hibmc_bo(gobj);
+ gbo = drm_gem_ttm_of_gem(gobj);
- ret = ttm_bo_reserve(&bo->bo, true, false, NULL);
+ ret = drm_gem_ttm_reserve(gbo, false);
if (ret) {
- DRM_ERROR("failed to reserve ttm_bo: %d\n", ret);
+ DRM_ERROR("failed to reserve bo: %d\n", ret);
goto out_unref_gem;
}
- ret = hibmc_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
+ ret = drm_gem_ttm_pin(gbo, TTM_PL_FLAG_VRAM);
if (ret) {
DRM_ERROR("failed to pin fbcon: %d\n", ret);
goto out_unreserve_ttm_bo;
}
- ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
- if (ret) {
+ base = drm_gem_ttm_kmap(gbo, true);
+ if (IS_ERR(base)) {
+ ret = ERR_PTR(base);
DRM_ERROR("failed to kmap fbcon: %d\n", ret);
goto out_unpin_bo;
}
- ttm_bo_unreserve(&bo->bo);
+ drm_gem_ttm_unreserve(gbo);
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
@@ -131,24 +133,24 @@ static int hibmc_drm_fb_create(struct drm_fb_helper *helper,
drm_fb_helper_fill_info(info, &priv->fbdev->helper, sizes);
- info->screen_base = bo->kmap.virtual;
+ info->screen_base = base;
info->screen_size = size;
- info->fix.smem_start = bo->bo.mem.bus.offset + bo->bo.mem.bus.base;
+ info->fix.smem_start = gbo->bo.mem.bus.offset + gbo->bo.mem.bus.base;
info->fix.smem_len = size;
return 0;
out_release_fbi:
- ret1 = ttm_bo_reserve(&bo->bo, true, false, NULL);
+ ret1 = drm_gem_ttm_reserve(gbo, false);
if (ret1) {
DRM_ERROR("failed to rsv ttm_bo when release fbi: %d\n", ret1);
goto out_unref_gem;
}
- ttm_bo_kunmap(&bo->kmap);
+ drm_gem_ttm_kunmap(gbo);
out_unpin_bo:
- hibmc_bo_unpin(bo);
+ drm_gem_ttm_unpin(gbo);
out_unreserve_ttm_bo:
- ttm_bo_unreserve(&bo->bo);
+ drm_gem_ttm_unreserve(gbo);
out_unref_gem:
drm_gem_object_put_unlocked(gobj);
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
index 6093c421daff..cbe42a4f3f08 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
@@ -27,19 +27,6 @@ hibmc_bdev(struct ttm_bo_device *bd)
return container_of(bd, struct hibmc_drm_private, bdev);
}
-static void hibmc_bo_ttm_destroy(struct ttm_buffer_object *tbo)
-{
- struct hibmc_bo *bo = container_of(tbo, struct hibmc_bo, bo);
-
- drm_gem_object_release(&bo->gem);
- kfree(bo);
-}
-
-static bool hibmc_ttm_bo_is_hibmc_bo(struct ttm_buffer_object *bo)
-{
- return bo->destroy == &hibmc_bo_ttm_destroy;
-}
-
static int
hibmc_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
struct ttm_mem_type_manager *man)
@@ -65,52 +52,6 @@ hibmc_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
return 0;
}
-void hibmc_ttm_placement(struct hibmc_bo *bo, int domain)
-{
- u32 count = 0;
- u32 i;
-
- bo->placement.placement = bo->placements;
- bo->placement.busy_placement = bo->placements;
- if (domain & TTM_PL_FLAG_VRAM)
- bo->placements[count++].flags = TTM_PL_FLAG_WC |
- TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
- if (domain & TTM_PL_FLAG_SYSTEM)
- bo->placements[count++].flags = TTM_PL_MASK_CACHING |
- TTM_PL_FLAG_SYSTEM;
- if (!count)
- bo->placements[count++].flags = TTM_PL_MASK_CACHING |
- TTM_PL_FLAG_SYSTEM;
-
- bo->placement.num_placement = count;
- bo->placement.num_busy_placement = count;
- for (i = 0; i < count; i++) {
- bo->placements[i].fpfn = 0;
- bo->placements[i].lpfn = 0;
- }
-}
-
-static void
-hibmc_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
-{
- struct hibmc_bo *hibmcbo = hibmc_bo(bo);
-
- if (!hibmc_ttm_bo_is_hibmc_bo(bo))
- return;
-
- hibmc_ttm_placement(hibmcbo, TTM_PL_FLAG_SYSTEM);
- *pl = hibmcbo->placement;
-}
-
-static int hibmc_bo_verify_access(struct ttm_buffer_object *bo,
- struct file *filp)
-{
- struct hibmc_bo *hibmcbo = hibmc_bo(bo);
-
- return drm_vma_node_verify_access(&hibmcbo->gem.vma_node,
- filp->private_data);
-}
-
static int hibmc_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
{
@@ -173,9 +114,9 @@ static struct ttm_tt *hibmc_ttm_tt_create(struct ttm_buffer_object *bo,
struct ttm_bo_driver hibmc_bo_driver = {
.ttm_tt_create = hibmc_ttm_tt_create,
.init_mem_type = hibmc_bo_init_mem_type,
- .evict_flags = hibmc_bo_evict_flags,
+ .evict_flags = drm_gem_ttm_bo_driver_evict_flags,
.move = NULL,
- .verify_access = hibmc_bo_verify_access,
+ .verify_access = drm_gem_ttm_bo_driver_verify_access,
.io_mem_reserve = &hibmc_ttm_io_mem_reserve,
.io_mem_free = NULL,
};
@@ -215,108 +156,6 @@ void hibmc_mm_fini(struct hibmc_drm_private *hibmc)
hibmc->mm_inited = false;
}
-static void hibmc_bo_unref(struct hibmc_bo **bo)
-{
- struct ttm_buffer_object *tbo;
-
- if ((*bo) == NULL)
- return;
-
- tbo = &((*bo)->bo);
- ttm_bo_put(tbo);
- *bo = NULL;
-}
-
-int hibmc_bo_create(struct drm_device *dev, int size, int align,
- u32 flags, struct hibmc_bo **phibmcbo)
-{
- struct hibmc_drm_private *hibmc = dev->dev_private;
- struct hibmc_bo *hibmcbo;
- size_t acc_size;
- int ret;
-
- hibmcbo = kzalloc(sizeof(*hibmcbo), GFP_KERNEL);
- if (!hibmcbo) {
- DRM_ERROR("failed to allocate hibmcbo\n");
- return -ENOMEM;
- }
- ret = drm_gem_object_init(dev, &hibmcbo->gem, size);
- if (ret) {
- DRM_ERROR("failed to initialize drm gem object: %d\n", ret);
- kfree(hibmcbo);
- return ret;
- }
-
- hibmcbo->bo.bdev = &hibmc->bdev;
-
- hibmc_ttm_placement(hibmcbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
-
- acc_size = ttm_bo_dma_acc_size(&hibmc->bdev, size,
- sizeof(struct hibmc_bo));
-
- ret = ttm_bo_init(&hibmc->bdev, &hibmcbo->bo, size,
- ttm_bo_type_device, &hibmcbo->placement,
- align >> PAGE_SHIFT, false, acc_size,
- NULL, NULL, hibmc_bo_ttm_destroy);
- if (ret) {
- hibmc_bo_unref(&hibmcbo);
- DRM_ERROR("failed to initialize ttm_bo: %d\n", ret);
- return ret;
- }
-
- *phibmcbo = hibmcbo;
- return 0;
-}
-
-int hibmc_bo_pin(struct hibmc_bo *bo, u32 pl_flag, u64 *gpu_addr)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (bo->pin_count) {
- bo->pin_count++;
- if (gpu_addr)
- *gpu_addr = bo->bo.offset;
- return 0;
- }
-
- hibmc_ttm_placement(bo, pl_flag);
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret)
- return ret;
-
- bo->pin_count = 1;
- if (gpu_addr)
- *gpu_addr = bo->bo.offset;
- return 0;
-}
-
-int hibmc_bo_unpin(struct hibmc_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- for (i = 0; i < bo->placement.num_placement ; i++)
- bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret) {
- DRM_ERROR("validate failed for unpin: %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
int hibmc_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *file_priv = filp->private_data;
@@ -328,24 +167,24 @@ int hibmc_mmap(struct file *filp, struct vm_area_struct *vma)
int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
struct drm_gem_object **obj)
{
- struct hibmc_bo *hibmcbo;
+ struct hibmc_drm_private *hibmc = dev->dev_private;
+ struct drm_gem_ttm_object *gbo;
int ret;
*obj = NULL;
- size = PAGE_ALIGN(size);
- if (size == 0) {
- DRM_ERROR("error: zero size\n");
+ size = roundup(size, PAGE_SIZE);
+ if (size == 0)
return -EINVAL;
- }
- ret = hibmc_bo_create(dev, size, 0, 0, &hibmcbo);
- if (ret) {
+ gbo = drm_gem_ttm_create(dev, &hibmc->bdev, size, 0, false);
+ if (IS_ERR(gbo)) {
+ ret = PTR_ERR(gbo);
if (ret != -ERESTARTSYS)
DRM_ERROR("failed to allocate GEM object: %d\n", ret);
return ret;
}
- *obj = &hibmcbo->gem;
+ *obj = &gbo->gem;
return 0;
}
@@ -377,35 +216,6 @@ int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
return 0;
}
-void hibmc_gem_free_object(struct drm_gem_object *obj)
-{
- struct hibmc_bo *hibmcbo = gem_to_hibmc_bo(obj);
-
- hibmc_bo_unref(&hibmcbo);
-}
-
-static u64 hibmc_bo_mmap_offset(struct hibmc_bo *bo)
-{
- return drm_vma_node_offset_addr(&bo->bo.vma_node);
-}
-
-int hibmc_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
- u32 handle, u64 *offset)
-{
- struct drm_gem_object *obj;
- struct hibmc_bo *bo;
-
- obj = drm_gem_object_lookup(file, handle);
- if (!obj)
- return -ENOENT;
-
- bo = gem_to_hibmc_bo(obj);
- *offset = hibmc_bo_mmap_offset(bo);
-
- drm_gem_object_put_unlocked(obj);
- return 0;
-}
-
static void hibmc_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct hibmc_framebuffer *hibmc_fb = to_hibmc_framebuffer(fb);
--
2.21.0
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