From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 2/9] drm/i915: Split the framebuffer_info creation into a separate routine
Date: Tue, 26 Mar 2013 16:33:05 -0700 [thread overview]
Message-ID: <1364340792-7278-3-git-send-email-jbarnes@virtuousgeek.org> (raw)
In-Reply-To: <1364340792-7278-1-git-send-email-jbarnes@virtuousgeek.org>
This will be shared with wrapping the BIOS framebuffer into the fbdev
later. In the meantime, we can tidy the code slightly and improve the
error path handling.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_display.c | 7 --
drivers/gpu/drm/i915/intel_drv.h | 7 ++
drivers/gpu/drm/i915/intel_fb.c | 154 ++++++++++++++++++----------------
3 files changed, 91 insertions(+), 77 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9d05b30..dfc8152 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6552,13 +6552,6 @@ intel_framebuffer_create(struct drm_device *dev,
}
static u32
-intel_framebuffer_pitch_for_width(int width, int bpp)
-{
- u32 pitch = DIV_ROUND_UP(width * bpp, 8);
- return ALIGN(pitch, 64);
-}
-
-static u32
intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
{
u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 276f665..f593e26 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -134,6 +134,13 @@ struct intel_framebuffer {
struct drm_i915_gem_object *obj;
};
+inline static u32
+intel_framebuffer_pitch_for_width(int width, int bpp)
+{
+ u32 pitch = DIV_ROUND_UP(width * bpp, 8);
+ return ALIGN(pitch, 64);
+}
+
struct intel_fbdev {
struct drm_fb_helper helper;
struct intel_framebuffer ifb;
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 8d81c929..8736a77 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -57,30 +57,97 @@ static struct fb_ops intelfb_ops = {
.fb_debug_leave = drm_fb_helper_debug_leave,
};
+static struct fb_info *intelfb_create_info(struct intel_fbdev *ifbdev)
+{
+ struct drm_framebuffer *fb = &ifbdev->ifb.base;
+ struct drm_device *dev = fb->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct fb_info *info;
+ u32 gtt_offset, size;
+ int ret;
+
+ info = framebuffer_alloc(0, &dev->pdev->dev);
+ if (!info)
+ return NULL;
+
+ info->par = ifbdev;
+ ifbdev->helper.fb = fb;
+ ifbdev->helper.fbdev = info;
+
+ strcpy(info->fix.id, "inteldrmfb");
+
+ info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
+ info->fbops = &intelfb_ops;
+
+ ret = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (ret)
+ goto err_info;
+
+ /* setup aperture base/size for vesafb takeover */
+ info->apertures = alloc_apertures(1);
+ if (!info->apertures)
+ goto err_cmap;
+
+ info->apertures->ranges[0].base = dev->mode_config.fb_base;
+ info->apertures->ranges[0].size = dev_priv->gtt.mappable_end;
+
+ gtt_offset = ifbdev->ifb.obj->gtt_offset;
+ size = ifbdev->ifb.obj->base.size;
+
+ info->fix.smem_start = dev->mode_config.fb_base + gtt_offset;
+ info->fix.smem_len = size;
+
+ info->screen_size = size;
+ info->screen_base = ioremap_wc(dev_priv->gtt.mappable_base + gtt_offset,
+ size);
+ if (!info->screen_base)
+ goto err_cmap;
+
+ /* If the object is shmemfs backed, it will have given us zeroed pages.
+ * If the object is stolen however, it will be full of whatever
+ * garbage was left in there.
+ */
+ if (ifbdev->ifb.obj->stolen)
+ memset_io(info->screen_base, 0, info->screen_size);
+
+ /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
+
+ drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
+ drm_fb_helper_fill_var(info, &ifbdev->helper, fb->width, fb->height);
+
+ return info;
+
+err_cmap:
+ if (info->cmap.len)
+ fb_dealloc_cmap(&info->cmap);
+err_info:
+ framebuffer_release(info);
+ return NULL;
+}
+
static int intelfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
struct drm_device *dev = ifbdev->helper.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct fb_info *info;
- struct drm_framebuffer *fb;
- struct drm_mode_fb_cmd2 mode_cmd = {};
+ struct drm_mode_fb_cmd2 mode_cmd = { 0 };
struct drm_i915_gem_object *obj;
- struct device *device = &dev->pdev->dev;
+ struct fb_info *info;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
- mode_cmd.width = sizes->surface_width;
+ mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
- mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
- 8), 64);
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
- sizes->surface_depth);
+ mode_cmd.pitches[0] =
+ intel_framebuffer_pitch_for_width(mode_cmd.width,
+ sizes->surface_bpp);
+ mode_cmd.pixel_format =
+ drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = ALIGN(size, PAGE_SIZE);
@@ -102,72 +169,19 @@ static int intelfb_create(struct drm_fb_helper *helper,
goto out_unref;
}
- info = framebuffer_alloc(0, device);
- if (!info) {
- ret = -ENOMEM;
- goto out_unpin;
- }
-
- info->par = ifbdev;
-
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_unpin;
- fb = &ifbdev->ifb.base;
-
- ifbdev->helper.fb = fb;
- ifbdev->helper.fbdev = info;
-
- strcpy(info->fix.id, "inteldrmfb");
-
- info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
- info->fbops = &intelfb_ops;
+ DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
+ mode_cmd.width, mode_cmd.height,
+ obj->gtt_offset, obj);
- ret = fb_alloc_cmap(&info->cmap, 256, 0);
- if (ret) {
- ret = -ENOMEM;
- goto out_unpin;
- }
- /* setup aperture base/size for vesafb takeover */
- info->apertures = alloc_apertures(1);
- if (!info->apertures) {
+ info = intelfb_create_info(ifbdev);
+ if (info == NULL) {
ret = -ENOMEM;
goto out_unpin;
}
- info->apertures->ranges[0].base = dev->mode_config.fb_base;
- info->apertures->ranges[0].size = dev_priv->gtt.mappable_end;
-
- info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
- info->fix.smem_len = size;
-
- info->screen_base =
- ioremap_wc(dev_priv->gtt.mappable_base + obj->gtt_offset,
- size);
- if (!info->screen_base) {
- ret = -ENOSPC;
- goto out_unpin;
- }
- info->screen_size = size;
-
- /* This driver doesn't need a VT switch to restore the mode on resume */
- info->skip_vt_switch = true;
-
- drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
- drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
-
- /* If the object is shmemfs backed, it will have given us zeroed pages.
- * If the object is stolen however, it will be full of whatever
- * garbage was left in there.
- */
- if (ifbdev->ifb.obj->stolen)
- memset_io(info->screen_base, 0, info->screen_size);
-
- /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
-
- DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
- fb->width, fb->height,
- obj->gtt_offset, obj);
mutex_unlock(&dev->struct_mutex);
@@ -192,11 +206,11 @@ static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
static void intel_fbdev_destroy(struct drm_device *dev,
struct intel_fbdev *ifbdev)
{
- struct fb_info *info;
struct intel_framebuffer *ifb = &ifbdev->ifb;
if (ifbdev->helper.fbdev) {
- info = ifbdev->helper.fbdev;
+ struct fb_info *info = ifbdev->helper.fbdev;
+
unregister_framebuffer(info);
iounmap(info->screen_base);
if (info->cmap.len)
--
1.7.9.5
next prev parent reply other threads:[~2013-03-26 23:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-26 23:33 Updated fastboot patches Jesse Barnes
2013-03-26 23:33 ` [PATCH 1/9] drm/i915: Skip modifying PCH DREF if not changing clock sources Jesse Barnes
2013-03-28 7:27 ` Jani Nikula
2013-04-02 17:53 ` Daniel Vetter
2013-03-26 23:33 ` Jesse Barnes [this message]
2013-03-26 23:33 ` [PATCH 3/9] drm/i915: Wrap the preallocated BIOS framebuffer and preserve for KMS fbcon v2 Jesse Barnes
2013-03-26 23:53 ` Chris Wilson
2013-03-27 14:07 ` Imre Deak
2013-03-26 23:33 ` [PATCH 4/9] drm/i915: Retrieve the current mode upon KMS takeover v2 Jesse Barnes
2013-03-26 23:36 ` Jesse Barnes
2013-03-27 0:13 ` Daniel Vetter
2013-03-27 15:52 ` Jesse Barnes
2013-03-26 23:33 ` [PATCH 5/9] drm/i915: Only preserve the BIOS modes if they are the preferred ones Jesse Barnes
2013-03-26 23:33 ` [PATCH 6/9] drm/i915: Validate that the framebuffer accommodates the current mode Jesse Barnes
2013-03-26 23:33 ` [PATCH 7/9] drm/i915: check panel fit status at update_plane time v2 Jesse Barnes
2013-03-26 23:33 ` [PATCH 8/9] drm/i915: treat no fb -> fb as simple flip instead of full mode set Jesse Barnes
2013-03-27 0:03 ` Daniel Vetter
2013-03-26 23:33 ` [PATCH 9/9] drm/i915: add debug messages for mode_valid checks Jesse Barnes
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1364340792-7278-3-git-send-email-jbarnes@virtuousgeek.org \
--to=jbarnes@virtuousgeek.org \
--cc=intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.