3.2.65-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Sinclair Yeh <s...@vmware.com>
commit 9a72384d86b26cb8a2b25106677e1197f606668f upstream.
When screen objects are enabled, the bpp is assumed to be 32, otherwise
it is set to 16.
v2:
* Use u32 instead of u64 for assumed_bpp.
* Fixed mechanism to check for screen objects
* Limit the back buffer size to VRAM.
Signed-off-by: Sinclair Yeh <s...@vmware.com>
Reviewed-by: Thomas Hellstrom <thellst...@vmware.com>
[bwh: Backported to 3.2: drop changes for dev_priv->prim_bb_mem]
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 6 +++++-
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 16 +++++++++++++---
2 files changed, 18 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1826,6 +1826,14 @@ int vmw_du_connector_fill_modes(struct d
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
};
int i;
+ u32 assumed_bpp = 2;
+
+ /*
+ * If using screen objects, then assume 32-bpp because that's what the
+ * SVGA device is assuming
+ */
+ if (dev_priv->sou_priv)
+ assumed_bpp = 4;
/* Add preferred mode */
{
@@ -1836,8 +1844,9 @@ int vmw_du_connector_fill_modes(struct d
mode->vdisplay = du->pref_height;
vmw_guess_mode_timing(mode);
- if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
- mode->vdisplay)) {
+ if (vmw_kms_validate_mode_vram(dev_priv,
+ mode->hdisplay * assumed_bpp,
+ mode->vdisplay)) {
drm_mode_probed_add(connector, mode);
} else {
drm_mode_destroy(dev, mode);
@@ -1859,7 +1868,8 @@ int vmw_du_connector_fill_modes(struct d
bmode->vdisplay > max_height)
continue;
- if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
+ if (!vmw_kms_validate_mode_vram(dev_priv,
+ bmode->hdisplay * assumed_bpp,
bmode->vdisplay))
continue;
--
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