drm/ast: Replace struct ast_framebuffer with GEM framebuffer helpers

The ast driver's struct ast_framebuffer is a buffer object with GEM
interface. There are already GEM framebuffer helpers that implement
the same functionality. Convert ast to these.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190627173410.8300-1-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 684e15e..ca794a3 100644 (file)
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -239,14 +239,8 @@ struct ast_encoder {
        struct drm_encoder base;
 };
 
-struct ast_framebuffer {
-       struct drm_framebuffer base;
-       struct drm_gem_object *obj;
-};
-
 struct ast_fbdev {
        struct drm_fb_helper helper; /* must be first */
-       struct ast_framebuffer afb;
        void *sysram;
        int size;
        int x1, y1, x2, y2; /* dirty rect */
@@ -256,7 +250,6 @@ struct ast_fbdev {
 #define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
 #define to_ast_connector(x) container_of(x, struct ast_connector, base)
 #define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
-#define to_ast_framebuffer(x) container_of(x, struct ast_framebuffer, base)
 
 struct ast_vbios_stdtable {
        u8 misc;
@@ -296,11 +289,6 @@ struct ast_vbios_mode_info {
 extern int ast_mode_init(struct drm_device *dev);
 extern void ast_mode_fini(struct drm_device *dev);
 
-int ast_framebuffer_init(struct drm_device *dev,
-                        struct ast_framebuffer *ast_fb,
-                        const struct drm_mode_fb_cmd2 *mode_cmd,
-                        struct drm_gem_object *obj);
-
 int ast_fbdev_init(struct drm_device *dev);
 void ast_fbdev_fini(struct drm_device *dev);
 void ast_fbdev_set_suspend(struct drm_device *dev, int state);

diff --git a/drivers/gpu/drm/ast/ast_fb.c b/drivers/gpu/drm/ast/ast_fb.c
index 8200b25..a849e58 100644 (file)
--- a/drivers/gpu/drm/ast/ast_fb.c
+++ b/drivers/gpu/drm/ast/ast_fb.c
@@ -38,9 +38,10 @@
 
 #include <drm/drmP.h>
 #include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_util.h>
-#include <drm/drm_crtc_helper.h>
 
 #include "ast_drv.h"
 
@@ -50,15 +51,16 @@ static void ast_dirty_update(struct ast_fbdev *afbdev,
        int i;
        struct drm_gem_vram_object *gbo;
        int src_offset, dst_offset;
-       int bpp = afbdev->afb.base.format->cpp[0];
        int ret;
        u8 *dst;
        bool unmap = false;
        bool store_for_later = false;
        int x2, y2;
        unsigned long flags;
+       struct drm_framebuffer *fb = afbdev->helper.fb;
+       int bpp = fb->format->cpp[0];
 
-       gbo = drm_gem_vram_of_gem(afbdev->afb.obj);
+       gbo = drm_gem_vram_of_gem(fb->obj[0]);
 
        if (drm_can_sleep()) {
                /* We pin the BO so it won't be moved during the
@@ -116,8 +118,7 @@ static void ast_dirty_update(struct ast_fbdev *afbdev,
 
        for (i = y; i <= y2; i++) {
                /* assume equal stride for now */
-               src_offset = dst_offset =
-                       i * afbdev->afb.base.pitches[0] + (x * bpp);
+               src_offset = dst_offset = i * fb->pitches[0] + (x * bpp);
                memcpy_toio(dst + dst_offset, afbdev->sysram + src_offset,
                            (x2 - x + 1) * bpp);
        }
@@ -222,14 +223,15 @@ static int astfb_create(struct drm_fb_helper *helper,
                ret = PTR_ERR(info);
                goto out;
        }
-       ret = ast_framebuffer_init(dev, &afbdev->afb, &mode_cmd, gobj);
-       if (ret)
+       fb = drm_gem_fbdev_fb_create(dev, sizes, 0, gobj, NULL);
+       if (IS_ERR(fb)) {
+               ret = PTR_ERR(fb);
                goto out;
+       }
 
        afbdev->sysram = sysram;
        afbdev->size = size;
 
-       fb = &afbdev->afb.base;
        afbdev->helper.fb = fb;
 
        info->fbops = &astfb_ops;
@@ -261,20 +263,13 @@ static const struct drm_fb_helper_funcs ast_fb_helper_funcs = {
 static void ast_fbdev_destroy(struct drm_device *dev,
                              struct ast_fbdev *afbdev)
 {
-       struct ast_framebuffer *afb = &afbdev->afb;
-
        drm_helper_force_disable_all(dev);
        drm_fb_helper_unregister_fbi(&afbdev->helper);
 
-       if (afb->obj) {
-               drm_gem_object_put_unlocked(afb->obj);
-               afb->obj = NULL;
-       }
        drm_fb_helper_fini(&afbdev->helper);
+       drm_framebuffer_put(afbdev->helper.fb);
 
        vfree(afbdev->sysram);
-       drm_framebuffer_unregister_private(&afb->base);
-       drm_framebuffer_cleanup(&afb->base);
 }
 
 int ast_fbdev_init(struct drm_device *dev)

diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 4c7e31c..1bd6169 100644 (file)
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -28,9 +28,9 @@
 #include <drm/drmP.h>
 #include "ast_drv.h"
 
-
-#include <drm/drm_fb_helper.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 
 void ast_set_index_reg_mask(struct ast_private *ast,
                            uint32_t base, uint8_t index,
@@ -383,67 +383,8 @@ static int ast_get_dram_info(struct drm_device *dev)
        return 0;
 }
 
-static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb)
-{
-       struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb);
-
-       drm_gem_object_put_unlocked(ast_fb->obj);
-       drm_framebuffer_cleanup(fb);
-       kfree(ast_fb);
-}
-
-static const struct drm_framebuffer_funcs ast_fb_funcs = {
-       .destroy = ast_user_framebuffer_destroy,
-};
-
-
-int ast_framebuffer_init(struct drm_device *dev,
-                        struct ast_framebuffer *ast_fb,
-                        const struct drm_mode_fb_cmd2 *mode_cmd,
-                        struct drm_gem_object *obj)
-{
-       int ret;
-
-       drm_helper_mode_fill_fb_struct(dev, &ast_fb->base, mode_cmd);
-       ast_fb->obj = obj;
-       ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs);
-       if (ret) {
-               DRM_ERROR("framebuffer init failed %d\n", ret);
-               return ret;
-       }
-       return 0;
-}
-
-static struct drm_framebuffer *
-ast_user_framebuffer_create(struct drm_device *dev,
-              struct drm_file *filp,
-              const struct drm_mode_fb_cmd2 *mode_cmd)
-{
-       struct drm_gem_object *obj;
-       struct ast_framebuffer *ast_fb;
-       int ret;
-
-       obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
-       if (obj == NULL)
-               return ERR_PTR(-ENOENT);
-
-       ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL);
-       if (!ast_fb) {
-               drm_gem_object_put_unlocked(obj);
-               return ERR_PTR(-ENOMEM);
-       }
-
-       ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj);
-       if (ret) {
-               drm_gem_object_put_unlocked(obj);
-               kfree(ast_fb);
-               return ERR_PTR(ret);
-       }
-       return &ast_fb->base;
-}
-
 static const struct drm_mode_config_funcs ast_mode_funcs = {
-       .fb_create = ast_user_framebuffer_create,
+       .fb_create = drm_gem_fb_create
 };
 
 static u32 ast_get_vram_info(struct drm_device *dev)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index ffccbef..c48249d 100644 (file)
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -526,27 +526,21 @@ static int ast_crtc_do_set_base(struct drm_crtc *crtc,
                                int x, int y, int atomic)
 {
        struct ast_private *ast = crtc->dev->dev_private;
-       struct drm_gem_object *obj;
-       struct ast_framebuffer *ast_fb;
        struct drm_gem_vram_object *gbo;
        int ret;
        s64 gpu_addr;
        void *base;
 
        if (!atomic && fb) {
-               ast_fb = to_ast_framebuffer(fb);
-               obj = ast_fb->obj;
-               gbo = drm_gem_vram_of_gem(obj);
+               gbo = drm_gem_vram_of_gem(fb->obj[0]);
 
                /* unmap if console */
-               if (&ast->fbdev->afb == ast_fb)
+               if (ast->fbdev->helper.fb == fb)
                        drm_gem_vram_kunmap(gbo);
                drm_gem_vram_unpin(gbo);
        }
 
-       ast_fb = to_ast_framebuffer(crtc->primary->fb);
-       obj = ast_fb->obj;
-       gbo = drm_gem_vram_of_gem(obj);
+       gbo = drm_gem_vram_of_gem(crtc->primary->fb->obj[0]);
 
        ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
        if (ret)
@@ -557,7 +551,7 @@ static int ast_crtc_do_set_base(struct drm_crtc *crtc,
                goto err_drm_gem_vram_unpin;
        }
 
-       if (&ast->fbdev->afb == ast_fb) {
+       if (ast->fbdev->helper.fb == crtc->primary->fb) {
                /* if pushing console in kmap it */
                base = drm_gem_vram_kmap(gbo, true, NULL);
                if (IS_ERR(base)) {
@@ -625,12 +619,12 @@ static void ast_crtc_disable(struct drm_crtc *crtc)
        ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
        if (crtc->primary->fb) {
                struct ast_private *ast = crtc->dev->dev_private;
-               struct ast_framebuffer *ast_fb = to_ast_framebuffer(crtc->primary->fb);
-               struct drm_gem_object *obj = ast_fb->obj;
-               struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(obj);
+               struct drm_framebuffer *fb = crtc->primary->fb;
+               struct drm_gem_vram_object *gbo =
+                       drm_gem_vram_of_gem(fb->obj[0]);
 
                /* unmap if console */
-               if (&ast->fbdev->afb == ast_fb)
+               if (ast->fbdev->helper.fb == fb)
                        drm_gem_vram_kunmap(gbo);
                drm_gem_vram_unpin(gbo);
        }