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| author | Damien Lespiau <damien.lespiau@intel.com> | 2014-01-09 18:02:46 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-24 14:47:39 +0200 |
| commit | 663750141ed953c42b6b0e3cfb2450453bc38151 (patch) | |
| tree | e5d875ae7f8cfcf45720e4dafb1cd7e7c6b77226 /drivers/gpu | |
| parent | 1b1aad754cb26fd073b82eb860126cb812157ae9 (diff) | |
| download | linux-663750141ed953c42b6b0e3cfb2450453bc38151.tar.gz linux-663750141ed953c42b6b0e3cfb2450453bc38151.tar.bz2 linux-663750141ed953c42b6b0e3cfb2450453bc38151.zip | |
drm/i915/skl: Add the additional graphics stolen sizes
Skylake introduces new stolen memory sizes starting at 0xf0 (4MB) and
growing by 4MB increments from there.
v2: Rebase on top of the early-quirk changes from Ville.
v3: Rebase on top of the PCI_IDS/IDS macro rename
Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 6f410cfb0510..d78695de8101 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1847,6 +1847,18 @@ static size_t chv_get_stolen_size(u16 gmch_ctrl) return (gmch_ctrl - 0x17 + 9) << 22; } +static size_t gen9_get_stolen_size(u16 gen9_gmch_ctl) +{ + gen9_gmch_ctl >>= BDW_GMCH_GMS_SHIFT; + gen9_gmch_ctl &= BDW_GMCH_GMS_MASK; + + if (gen9_gmch_ctl < 0xf0) + return gen9_gmch_ctl << 25; /* 32 MB units */ + else + /* 4MB increments starting at 0xf0 for 4MB */ + return (gen9_gmch_ctl - 0xf0 + 1) << 22; +} + static int ggtt_probe_common(struct drm_device *dev, size_t gtt_size) { @@ -1943,7 +1955,10 @@ static int gen8_gmch_probe(struct drm_device *dev, pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &snb_gmch_ctl); - if (IS_CHERRYVIEW(dev)) { + if (INTEL_INFO(dev)->gen >= 9) { + *stolen = gen9_get_stolen_size(snb_gmch_ctl); + gtt_size = gen8_get_total_gtt_size(snb_gmch_ctl); + } else if (IS_CHERRYVIEW(dev)) { *stolen = chv_get_stolen_size(snb_gmch_ctl); gtt_size = chv_get_total_gtt_size(snb_gmch_ctl); } else { |