[Nouveau] [PATCH 4/4] drm/nouveau: Remove struct nouveau_framebuffer
James Jones
jajones at nvidia.com
Fri Feb 7 21:11:35 UTC 2020
I've sent out a v4 version of the format modifier patches which avoid
caching values in the nouveau_framebuffer struct. It will have a few
trivial conflicts with your series, but should make them structurally
compatible.
I'm fine with either v3 or v4 of my series personally, but if these
cleanup patches are taken, only v4 will work.
Thanks,
-James
On 2/6/20 8:45 AM, James Jones wrote:
> Yes, that's certainly viable. If that's the general preference in
> direction, I'll rework that patches to do so.
>
> Thanks,
> -James
>
> On 2/6/20 7:49 AM, Thomas Zimmermann wrote:
>> Hi James
>>
>> Am 06.02.20 um 16:17 schrieb James Jones:
>>> Note I'm adding some fields to nouveau_framebuffer in the series
>>> "drm/nouveau: Support NVIDIA format modifiers." I sent out v3 of that
>>> yesterday. It would probably still be possible to avoid them by
>>> re-extracting the relevant data from the format modifier on the fly when
>>> needed, but it is simpler and likely less error-prone with the wrapper
>>> struct.
>>
>> Thanks for the note.
>>
>> I just took a look at your patchset. I think struct nouveau_framebuffer
>> should not store tile_mode and kind. AFAICT there are only two trivial
>> places where these values are used and they can be extracted from the
>> framebuffer at any time.
>>
>> I'd suggest to expand nouveau_decode_mod() to take a drm_framebuffer and
>> return the correct values. Kind of what you do in
>> nouveau_framebuffer_new() near line 330.
>>
>> Thoughts?
>>
>> Best regards
>> Thomas
>>
>> [1] https://patchwork.freedesktop.org/series/70786/#rev3
>>
>>>
>>> Thanks,
>>> -James
>>>
>>> On 2/6/20 2:19 AM, Thomas Zimmermann wrote:
>>>> After its cleanup, struct nouveau_framebuffer is only a wrapper around
>>>> struct drm_framebuffer. Use the latter directly.
>>>>
>>>> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
>>>> ---
>>>> drivers/gpu/drm/nouveau/dispnv50/wndw.c | 26
>>>> +++++++++++------------
>>>> drivers/gpu/drm/nouveau/nouveau_display.c | 14 ++++++------
>>>> drivers/gpu/drm/nouveau/nouveau_display.h | 12 +----------
>>>> drivers/gpu/drm/nouveau/nouveau_fbcon.c | 14 ++++++------
>>>> 4 files changed, 28 insertions(+), 38 deletions(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
>>>> b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
>>>> index ba1399965a1c..4a67a656e007 100644
>>>> --- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
>>>> +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
>>>> @@ -40,11 +40,11 @@ nv50_wndw_ctxdma_del(struct nv50_wndw_ctxdma
>>>> *ctxdma)
>>>> }
>>>> static struct nv50_wndw_ctxdma *
>>>> -nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct
>>>> nouveau_framebuffer *fb)
>>>> +nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct drm_framebuffer
>>>> *fb)
>>>> {
>>>> - struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
>>>> + struct nouveau_drm *drm = nouveau_drm(fb->dev);
>>>> struct nv50_wndw_ctxdma *ctxdma;
>>>> - struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
>>>> + struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
>>>> const u8 kind = nvbo->kind;
>>>> const u32 handle = 0xfb000000 | kind;
>>>> struct {
>>>> @@ -236,16 +236,16 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw
>>>> *wndw, bool modeset,
>>>> struct nv50_wndw_atom *asyw,
>>>> struct nv50_head_atom *asyh)
>>>> {
>>>> - struct nouveau_framebuffer *fb =
>>>> nouveau_framebuffer(asyw->state.fb);
>>>> + struct drm_framebuffer *fb = asyw->state.fb;
>>>> struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
>>>> - struct nouveau_bo *nvbo = nouveau_gem_object(fb->base.obj[0]);
>>>> + struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
>>>> int ret;
>>>> NV_ATOMIC(drm, "%s acquire\n", wndw->plane.name);
>>>> - if (asyw->state.fb != armw->state.fb || !armw->visible ||
>>>> modeset) {
>>>> - asyw->image.w = fb->base.width;
>>>> - asyw->image.h = fb->base.height;
>>>> + if (fb != armw->state.fb || !armw->visible || modeset) {
>>>> + asyw->image.w = fb->width;
>>>> + asyw->image.h = fb->height;
>>>> asyw->image.kind = nvbo->kind;
>>>> ret = nv50_wndw_atomic_check_acquire_rgb(asyw);
>>>> @@ -261,13 +261,13 @@ nv50_wndw_atomic_check_acquire(struct nv50_wndw
>>>> *wndw, bool modeset,
>>>> asyw->image.blockh = nvbo->mode >> 4;
>>>> else
>>>> asyw->image.blockh = nvbo->mode;
>>>> - asyw->image.blocks[0] = fb->base.pitches[0] / 64;
>>>> + asyw->image.blocks[0] = fb->pitches[0] / 64;
>>>> asyw->image.pitch[0] = 0;
>>>> } else {
>>>> asyw->image.layout = 1;
>>>> asyw->image.blockh = 0;
>>>> asyw->image.blocks[0] = 0;
>>>> - asyw->image.pitch[0] = fb->base.pitches[0];
>>>> + asyw->image.pitch[0] = fb->pitches[0];
>>>> }
>>>> if (!asyh->state.async_flip)
>>>> @@ -486,16 +486,16 @@ nv50_wndw_cleanup_fb(struct drm_plane *plane,
>>>> struct drm_plane_state *old_state)
>>>> static int
>>>> nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state
>>>> *state)
>>>> {
>>>> - struct nouveau_framebuffer *fb = nouveau_framebuffer(state->fb);
>>>> + struct drm_framebuffer *fb = state->fb;
>>>> struct nouveau_drm *drm = nouveau_drm(plane->dev);
>>>> struct nv50_wndw *wndw = nv50_wndw(plane);
>>>> struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
>>>> - struct nouveau_bo *nvbo = nouveau_gem_object(state->fb->obj[0]);
>>>> + struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
>>>> struct nv50_head_atom *asyh;
>>>> struct nv50_wndw_ctxdma *ctxdma;
>>>> int ret;
>>>> - NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, state->fb);
>>>> + NV_ATOMIC(drm, "%s prepare: %p\n", plane->name, fb);
>>>> if (!asyw->state.fb)
>>>> return 0;
>>>> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c
>>>> b/drivers/gpu/drm/nouveau/nouveau_display.c
>>>> index bbbff55eb5d5..94f7fd48e1cf 100644
>>>> --- a/drivers/gpu/drm/nouveau/nouveau_display.c
>>>> +++ b/drivers/gpu/drm/nouveau/nouveau_display.c
>>>> @@ -207,10 +207,10 @@ int
>>>> nouveau_framebuffer_new(struct drm_device *dev,
>>>> const struct drm_mode_fb_cmd2 *mode_cmd,
>>>> struct drm_gem_object *gem,
>>>> - struct nouveau_framebuffer **pfb)
>>>> + struct drm_framebuffer **pfb)
>>>> {
>>>> struct nouveau_drm *drm = nouveau_drm(dev);
>>>> - struct nouveau_framebuffer *fb;
>>>> + struct drm_framebuffer *fb;
>>>> int ret;
>>>> /* YUV overlays have special requirements pre-NV50 */
>>>> @@ -236,10 +236,10 @@ nouveau_framebuffer_new(struct drm_device *dev,
>>>> if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
>>>> return -ENOMEM;
>>>> - drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
>>>> - fb->base.obj[0] = gem;
>>>> + drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
>>>> + fb->obj[0] = gem;
>>>> - ret = drm_framebuffer_init(dev, &fb->base,
>>>> &nouveau_framebuffer_funcs);
>>>> + ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
>>>> if (ret)
>>>> kfree(fb);
>>>> return ret;
>>>> @@ -250,7 +250,7 @@ nouveau_user_framebuffer_create(struct drm_device
>>>> *dev,
>>>> struct drm_file *file_priv,
>>>> const struct drm_mode_fb_cmd2 *mode_cmd)
>>>> {
>>>> - struct nouveau_framebuffer *fb;
>>>> + struct drm_framebuffer *fb;
>>>> struct drm_gem_object *gem;
>>>> int ret;
>>>> @@ -260,7 +260,7 @@ nouveau_user_framebuffer_create(struct
>>>> drm_device *dev,
>>>> ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
>>>> if (ret == 0)
>>>> - return &fb->base;
>>>> + return fb;
>>>> drm_gem_object_put_unlocked(gem);
>>>> return ERR_PTR(ret);
>>>> diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h
>>>> b/drivers/gpu/drm/nouveau/nouveau_display.h
>>>> index 56c1dec8fc28..082bb067d575 100644
>>>> --- a/drivers/gpu/drm/nouveau/nouveau_display.h
>>>> +++ b/drivers/gpu/drm/nouveau/nouveau_display.h
>>>> @@ -8,21 +8,11 @@
>>>> #include <drm/drm_framebuffer.h>
>>>> -struct nouveau_framebuffer {
>>>> - struct drm_framebuffer base;
>>>> -};
>>>> -
>>>> -static inline struct nouveau_framebuffer *
>>>> -nouveau_framebuffer(struct drm_framebuffer *fb)
>>>> -{
>>>> - return container_of(fb, struct nouveau_framebuffer, base);
>>>> -}
>>>> -
>>>> int
>>>> nouveau_framebuffer_new(struct drm_device *dev,
>>>> const struct drm_mode_fb_cmd2 *mode_cmd,
>>>> struct drm_gem_object *gem,
>>>> - struct nouveau_framebuffer **pfb);
>>>> + struct drm_framebuffer **pfb);
>>>> struct nouveau_display {
>>>> void *priv;
>>>> diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
>>>> b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
>>>> index 02b36b44409c..d78bc03ad3b8 100644
>>>> --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
>>>> +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
>>>> @@ -312,7 +312,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>>>> struct nouveau_drm *drm = nouveau_drm(dev);
>>>> struct nvif_device *device = &drm->client.device;
>>>> struct fb_info *info;
>>>> - struct nouveau_framebuffer *fb;
>>>> + struct drm_framebuffer *fb;
>>>> struct nouveau_channel *chan;
>>>> struct nouveau_bo *nvbo;
>>>> struct drm_mode_fb_cmd2 mode_cmd;
>>>> @@ -367,7 +367,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>>>> }
>>>> /* setup helper */
>>>> - fbcon->helper.fb = &fb->base;
>>>> + fbcon->helper.fb = fb;
>>>> if (!chan)
>>>> info->flags = FBINFO_HWACCEL_DISABLED;
>>>> @@ -393,7 +393,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
>>>> /* To allow resizeing without swapping buffers */
>>>> NV_INFO(drm, "allocated %dx%d fb: 0x%llx, bo %p\n",
>>>> - fb->base.width, fb->base.height, nvbo->bo.offset, nvbo);
>>>> + fb->width, fb->height, nvbo->bo.offset, nvbo);
>>>> vga_switcheroo_client_fb_set(dev->pdev, info);
>>>> return 0;
>>>> @@ -413,18 +413,18 @@ nouveau_fbcon_create(struct drm_fb_helper
>>>> *helper,
>>>> static int
>>>> nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev
>>>> *fbcon)
>>>> {
>>>> - struct nouveau_framebuffer *nouveau_fb =
>>>> nouveau_framebuffer(fbcon->helper.fb);
>>>> + struct drm_framebuffer *fb = fbcon->helper.fb;
>>>> struct nouveau_bo *nvbo;
>>>> drm_fb_helper_unregister_fbi(&fbcon->helper);
>>>> drm_fb_helper_fini(&fbcon->helper);
>>>> - if (nouveau_fb && nouveau_fb->base.obj[0]) {
>>>> - nvbo = nouveau_gem_object(nouveau_fb->base.obj[0]);
>>>> + if (fb && fb->obj[0]) {
>>>> + nvbo = nouveau_gem_object(fb->obj[0]);
>>>> nouveau_vma_del(&fbcon->vma);
>>>> nouveau_bo_unmap(nvbo);
>>>> nouveau_bo_unpin(nvbo);
>>>> - drm_framebuffer_put(&nouveau_fb->base);
>>>> + drm_framebuffer_put(fb);
>>>> }
>>>> return 0;
>>>>
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