drm/vmwgfx: Replace vram_size with prim_bb_mem for calculation of max resolution

In the future, Scanout buffers need not be backed by VRAM and
the two definitions will differ.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 6c792f7..67ac42d 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -628,6 +628,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
        if (unlikely(ret != 0))
                goto out_err0;
 
+       dev_priv->prim_bb_mem = dev_priv->vram_size;
+
        mutex_unlock(&dev_priv->hw_mutex);
 
        vmw_print_capabilities(dev_priv->capabilities);
@@ -640,6 +642,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
                DRM_INFO("Max dedicated hypervisor surface memory is %u kiB\n",
                         (unsigned)dev_priv->memory_size / 1024);
        }
+       DRM_INFO("Maximum display memory size is %u kiB\n",
+                dev_priv->prim_bb_mem / 1024);
        DRM_INFO("VRAM at 0x%08x size is %u kiB\n",
                 dev_priv->vram_start, dev_priv->vram_size / 1024);
        DRM_INFO("MMIO at 0x%08x size is %u kiB\n",

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index ba49c1d..486adaf 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -281,6 +281,7 @@ struct vmw_private {
        unsigned int io_start;
        uint32_t vram_start;
        uint32_t vram_size;
+       uint32_t prim_bb_mem;
        uint32_t mmio_start;
        uint32_t mmio_size;
        uint32_t fb_max_width;

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index a51f48e..e308e9e 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -53,7 +53,7 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
                param->value = dev_priv->fifo.capabilities;
                break;
        case DRM_VMW_PARAM_MAX_FB_SIZE:
-               param->value = dev_priv->vram_size;
+               param->value = dev_priv->prim_bb_mem;
                break;
        case DRM_VMW_PARAM_FIFO_HW_VERSION:
        {

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 019e2db..c597d89 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1645,7 +1645,7 @@ bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
                                uint32_t pitch,
                                uint32_t height)
 {
-       return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
+       return ((u64) pitch * (u64) height) < (u64) dev_priv->prim_bb_mem;
 }