diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2017-12-11 18:18:21 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2017-12-12 13:30:22 +0300 |
| commit | b1ace60107e65b915a59b113f2aaeed8587f34fd (patch) | |
| tree | 5d6c5a0c8079b1fbdc58fa9ec8422078904c632c /drivers/gpu/drm/i915/i915_drv.h | |
| parent | 73ebd503034c1abe31137df02dd4493eb7a522d4 (diff) | |
| download | linux-b1ace60107e65b915a59b113f2aaeed8587f34fd.tar.xz | |
drm/i915: give stolen_usable_size a more suitable home
Kick it out of i915_ggtt and keep it grouped with dsm and dsm_reserved,
where it makes the most sense.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171211151822.20953-9-matthew.auld@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7945af0037f8..d71e59e44d50 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2254,7 +2254,7 @@ struct drm_i915_private { /** * Data Stolen Memory - aka "i915 stolen memory" gives us the start and * end of stolen which we can optionally use to create GEM objects - * backed by stolen memory. Note that ggtt->stolen_usable_size tells us + * backed by stolen memory. Note that stolen_usable_size tells us * exactly how much of this we are actually allowed to use, given that * some portion of it is in fact reserved for use by hardware functions. */ @@ -2264,6 +2264,17 @@ struct drm_i915_private { */ struct resource dsm_reserved; + /* + * Stolen memory is segmented in hardware with different portions + * offlimits to certain functions. + * + * The drm_mm is initialised to the total accessible range, as found + * from the PCI config. On Broadwell+, this is further restricted to + * avoid the first page! The upper end of stolen memory is reserved for + * hardware functions and similarly removed from the accessible range. + */ + u32 stolen_usable_size; /* Total size minus reserved ranges */ + void __iomem *regs; struct intel_uncore uncore; |