[PATCH 11/12] staging: vboxvideo: Move bo_[un]resere calls into vbox_bo_[un]pin
Hans de Goede
hdegoede at redhat.com
Tue Sep 18 17:44:37 UTC 2018
We always need to reserve the bo around a pin / unpin, so move the
reservation there.
This allows removing the vbox_fb_[un]pin helpers.
Note this means that we now no longer hold the bo reserved while
k[un]mapping it in vbox_fb.c this is fine as it is not necessary
to hold it reserved for this.
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
drivers/staging/vboxvideo/vbox_drv.h | 2 +-
drivers/staging/vboxvideo/vbox_fb.c | 27 ++++----------
drivers/staging/vboxvideo/vbox_mode.c | 54 ++++++++-------------------
drivers/staging/vboxvideo/vbox_ttm.c | 32 +++++++++-------
4 files changed, 42 insertions(+), 73 deletions(-)
diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
index 6a4d3b382e79..fffde1713101 100644
--- a/drivers/staging/vboxvideo/vbox_drv.h
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -245,7 +245,7 @@ int vbox_bo_create(struct vbox_private *vbox, int size, int align,
int vbox_gem_create(struct vbox_private *vbox,
u32 size, bool iskernel, struct drm_gem_object **obj);
-int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr);
+int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag);
int vbox_bo_unpin(struct vbox_bo *bo);
static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
diff --git a/drivers/staging/vboxvideo/vbox_fb.c b/drivers/staging/vboxvideo/vbox_fb.c
index 0e5550fa7c57..bdc87d02ecc5 100644
--- a/drivers/staging/vboxvideo/vbox_fb.c
+++ b/drivers/staging/vboxvideo/vbox_fb.c
@@ -104,18 +104,11 @@ static int vboxfb_create(struct drm_fb_helper *helper,
bo = gem_to_vbox_bo(gobj);
- ret = vbox_bo_reserve(bo, false);
+ ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
if (ret)
return ret;
- ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
- if (ret) {
- vbox_bo_unreserve(bo);
- return ret;
- }
-
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
- vbox_bo_unreserve(bo);
if (ret) {
DRM_ERROR("failed to kmap fbcon\n");
return ret;
@@ -153,6 +146,7 @@ static int vboxfb_create(struct drm_fb_helper *helper,
drm_fb_helper_fill_var(info, &fbdev->helper, sizes->fb_width,
sizes->fb_height);
+ gpu_addr = vbox_bo_gpu_offset(bo);
info->fix.smem_start = info->apertures->ranges[0].base + gpu_addr;
info->fix.smem_len = vbox->available_vram_size - gpu_addr;
@@ -190,17 +184,12 @@ void vbox_fbdev_fini(struct vbox_private *vbox)
if (afb->obj) {
struct vbox_bo *bo = gem_to_vbox_bo(afb->obj);
- if (!vbox_bo_reserve(bo, false)) {
- if (bo->kmap.virtual)
- ttm_bo_kunmap(&bo->kmap);
- /*
- * QXL does this, but is it really needed before
- * freeing?
- */
- if (bo->pin_count)
- vbox_bo_unpin(bo);
- vbox_bo_unreserve(bo);
- }
+ if (bo->kmap.virtual)
+ ttm_bo_kunmap(&bo->kmap);
+
+ if (bo->pin_count)
+ vbox_bo_unpin(bo);
+
drm_gem_object_put_unlocked(afb->obj);
afb->obj = NULL;
}
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c
index 910ea19931c9..bef99664d030 100644
--- a/drivers/staging/vboxvideo/vbox_mode.c
+++ b/drivers/staging/vboxvideo/vbox_mode.c
@@ -221,40 +221,6 @@ static bool vbox_set_up_input_mapping(struct vbox_private *vbox)
return old_single_framebuffer != vbox->single_framebuffer;
}
-static int vbox_fb_pin(struct drm_framebuffer *fb, u32 pl_flag, u64 *addr)
-{
- struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
- int ret;
-
- ret = vbox_bo_reserve(bo, false);
- if (ret)
- return ret;
-
- ret = vbox_bo_pin(bo, pl_flag, addr);
- vbox_bo_unreserve(bo);
- return ret;
-}
-
-static void vbox_fb_unpin(struct drm_framebuffer *fb)
-{
- struct vbox_bo *bo;
- int ret;
-
- if (!fb)
- return;
-
- bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
-
- ret = vbox_bo_reserve(bo, false);
- if (ret) {
- DRM_ERROR("Error %d reserving fb bo, leaving it pinned\n", ret);
- return;
- }
-
- vbox_bo_unpin(bo);
- vbox_bo_unreserve(bo);
-}
-
static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_display_mode *mode,
@@ -296,17 +262,22 @@ static int vbox_crtc_mode_set(struct drm_crtc *crtc,
struct drm_display_mode *adjusted_mode,
int x, int y, struct drm_framebuffer *old_fb)
{
+ struct drm_framebuffer *new_fb = CRTC_FB(crtc);
+ struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(new_fb)->obj);
int ret;
- ret = vbox_fb_pin(CRTC_FB(crtc), TTM_PL_FLAG_VRAM, NULL);
+ ret = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
if (ret) {
DRM_WARN("Error %d pinning new fb, out of video mem?\n", ret);
return ret;
}
- vbox_crtc_set_base_and_mode(crtc, CRTC_FB(crtc), mode, x, y);
+ vbox_crtc_set_base_and_mode(crtc, new_fb, mode, x, y);
- vbox_fb_unpin(old_fb);
+ if (old_fb) {
+ bo = gem_to_vbox_bo(to_vbox_framebuffer(old_fb)->obj);
+ vbox_bo_unpin(bo);
+ }
return 0;
}
@@ -317,10 +288,12 @@ static int vbox_crtc_page_flip(struct drm_crtc *crtc,
uint32_t page_flip_flags,
struct drm_modeset_acquire_ctx *ctx)
{
+ struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj);
+ struct drm_framebuffer *old_fb = CRTC_FB(crtc);
unsigned long flags;
int rc;
- rc = vbox_fb_pin(fb, TTM_PL_FLAG_VRAM, NULL);
+ rc = vbox_bo_pin(bo, TTM_PL_FLAG_VRAM);
if (rc) {
DRM_WARN("Error %d pinning new fb, out of video mem?\n", rc);
return rc;
@@ -328,7 +301,10 @@ static int vbox_crtc_page_flip(struct drm_crtc *crtc,
vbox_crtc_set_base_and_mode(crtc, fb, NULL, 0, 0);
- vbox_fb_unpin(CRTC_FB(crtc));
+ if (old_fb) {
+ bo = gem_to_vbox_bo(to_vbox_framebuffer(old_fb)->obj);
+ vbox_bo_unpin(bo);
+ }
spin_lock_irqsave(&crtc->dev->event_lock, flags);
diff --git a/drivers/staging/vboxvideo/vbox_ttm.c b/drivers/staging/vboxvideo/vbox_ttm.c
index 0e14556dcd6b..bd0a1603764e 100644
--- a/drivers/staging/vboxvideo/vbox_ttm.c
+++ b/drivers/staging/vboxvideo/vbox_ttm.c
@@ -343,34 +343,32 @@ int vbox_bo_create(struct vbox_private *vbox, int size, int align,
return ret;
}
-int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr)
+int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag)
{
struct ttm_operation_ctx ctx = { false, false };
int i, ret;
if (bo->pin_count) {
bo->pin_count++;
- if (gpu_addr)
- *gpu_addr = vbox_bo_gpu_offset(bo);
-
return 0;
}
+ ret = vbox_bo_reserve(bo, false);
+ if (ret)
+ return ret;
+
vbox_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 (ret == 0)
+ bo->pin_count = 1;
- if (gpu_addr)
- *gpu_addr = vbox_bo_gpu_offset(bo);
+ vbox_bo_unreserve(bo);
- return 0;
+ return ret;
}
int vbox_bo_unpin(struct vbox_bo *bo)
@@ -386,14 +384,20 @@ int vbox_bo_unpin(struct vbox_bo *bo)
if (bo->pin_count)
return 0;
+ ret = vbox_bo_reserve(bo, false);
+ if (ret) {
+ DRM_ERROR("Error %d reserving bo, leaving it pinned\n", ret);
+ return ret;
+ }
+
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;
- return 0;
+ vbox_bo_unreserve(bo);
+
+ return ret;
}
/*
--
2.19.0.rc1
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