On Sat, Aug 11, 2012 at 03:41:15PM +0100, Chris Wilson wrote:
> A few of the earlier registers where enlarged and so the Base Data of
> Stolem Memory Register (BDSM) was pushed to 0xb0.
>
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> ---
> drivers/gpu/drm/i915/i915_gem_stolen.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
> index a01ff74..a528e4a 100644
> --- a/drivers/gpu/drm/i915/i915_gem_stolen.c
> +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
> @@ -63,7 +63,11 @@ static unsigned long i915_stolen_to_physical(struct drm_device *dev)
> * its value of TOLUD.
> */
> base = 0;
> - if (INTEL_INFO(dev)->gen > 3 || IS_G33(dev)) {
> + if (INTEL_INFO(dev)->gen >= 6) {
> + /* Read Base Data of Stolen Memory Register (BDSM) directly */
> + pci_read_config_dword(pdev, 0xB0, &base);
Wishlist (i.e. feel free to ignore): Can we have #defines instead of magic
numbers here, please?
-Daniel
> + base &= ~4095; /* lower bits used for locking register */
> + } else if (INTEL_INFO(dev)->gen > 3 || IS_G33(dev)) {
> /* Read Graphics Base of Stolen Memory directly */
> pci_read_config_dword(pdev, 0xA4, &base);
> #if 0
> @@ -172,6 +176,9 @@ int i915_gem_init_stolen(struct drm_device *dev)
> if (dev_priv->mm.stolen_base == 0)
> return 0;
>
> + DRM_DEBUG_KMS("found %d bytes of stolen memory at %08lx\n",
> + dev_priv->mm.gtt->stolen_size, dev_priv->mm.stolen_base);
> +
> /* Basic memrange allocator for stolen space */
> drm_mm_init(&dev_priv->mm.stolen, 0, prealloc_size);
>
> --
> 1.7.10.4
>
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> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48
