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gma500: support 1080p 

The problem in console mode is lack of linear memory. We can solve that by
dropping to 16bpp. The mode setting X server will allocate its own GEM
framebuffer in 32bpp and all will be well.

We could just do 16bpp anyway but that would be a regression on the lower
modes as many distributions don't yet ship the generic mode setting KMS
drivers.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
hifive-unleashed-5.1
Alan Cox 2012-04-25 14:37:40 +01:00 committed by Dave Airlie
parent 1b2db4cee5
commit 3aad16d2ea
5 changed files with 16 additions and 25 deletions
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6
drivers/gpu/drm/gma500/cdv_intel_crt.c
View File

@ -67,7 +67,6 @@ static void cdv_intel_crt_dpms(struct drm_encoder *encoder, int mode)
static int cdv_intel_crt_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_psb_private *dev_priv = connector->dev->dev_private;
int max_clock = 0;
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
return MODE_NO_DBLESCAN;
@ -84,11 +83,6 @@ static int cdv_intel_crt_mode_valid(struct drm_connector *connector,
if (mode->hdisplay > 1680 || mode->vdisplay > 1050)
return MODE_PANEL;
/* We assume worst case scenario of 32 bpp here, since we don't know */
if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
dev_priv->vram_stolen_size)
return MODE_MEM;
return MODE_OK;
}

7
drivers/gpu/drm/gma500/cdv_intel_hdmi.c
View File

@ -242,8 +242,6 @@ static int cdv_hdmi_get_modes(struct drm_connector *connector)
static int cdv_hdmi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_psb_private *dev_priv = connector->dev->dev_private;
if (mode->clock > 165000)
return MODE_CLOCK_HIGH;
if (mode->clock < 20000)
@ -257,11 +255,6 @@ static int cdv_hdmi_mode_valid(struct drm_connector *connector,
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
return MODE_NO_INTERLACE;
/* We assume worst case scenario of 32 bpp here, since we don't know */
if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
dev_priv->vram_stolen_size)
return MODE_MEM;
return MODE_OK;
}

16
drivers/gpu/drm/gma500/framebuffer.c
View File

@ -543,9 +543,25 @@ static int psbfb_probe(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
struct drm_device *dev = psb_fbdev->psb_fb_helper.dev;
struct drm_psb_private *dev_priv = dev->dev_private;
int new_fb = 0;
int bytespp;
int ret;
bytespp = sizes->surface_bpp / 8;
if (bytespp == 3) /* no 24bit packed */
bytespp = 4;
/* If the mode will not fit in 32bit then switch to 16bit to get
a console on full resolution. The X mode setting server will
allocate its own 32bit GEM framebuffer */
if (ALIGN(sizes->fb_width * bytespp, 64) * sizes->fb_height >
dev_priv->vram_stolen_size) {
sizes->surface_bpp = 16;
sizes->surface_depth = 16;
}
if (!helper->fb) {
ret = psbfb_create(psb_fbdev, sizes);
if (ret)

6
drivers/gpu/drm/gma500/oaktrail_hdmi.c
View File

@ -179,7 +179,6 @@ static void oaktrail_hdmi_dpms(struct drm_encoder *encoder, int mode)
static int oaktrail_hdmi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_psb_private *dev_priv = connector->dev->dev_private;
if (mode->clock > 165000)
return MODE_CLOCK_HIGH;
if (mode->clock < 20000)
@ -188,11 +187,6 @@ static int oaktrail_hdmi_mode_valid(struct drm_connector *connector,
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
return MODE_NO_DBLESCAN;
/* We assume worst case scenario of 32 bpp here, since we don't know */
if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
dev_priv->vram_stolen_size)
return MODE_MEM;
return MODE_OK;
}

6
drivers/gpu/drm/gma500/psb_intel_sdvo.c
View File

@ -1141,7 +1141,6 @@ static void psb_intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
static int psb_intel_sdvo_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct drm_psb_private *dev_priv = connector->dev->dev_private;
struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
@ -1161,11 +1160,6 @@ static int psb_intel_sdvo_mode_valid(struct drm_connector *connector,
return MODE_PANEL;
}
/* We assume worst case scenario of 32 bpp here, since we don't know */
if ((ALIGN(mode->hdisplay * 4, 64) * mode->vdisplay) >
dev_priv->vram_stolen_size)
return MODE_MEM;
return MODE_OK;
}