diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2021-01-27 13:14:11 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 19:30:36 +0100 |
| commit | a50ca39fbd018889dc48f9bf17ca924546645dbc (patch) | |
| tree | 1c2e26a983019457bb36fa9ba8a9fa31a94ddc9b /drivers/gpu/drm/i915/gt/intel_gt.c | |
| parent | 2dfcc7f4e91ff853beab44ce62eeb1163a220e2f (diff) | |
drm/i915: setup the LMEM region
Hook up the LMEM region. Addresses will start from zero, and for CPU
access we get LMEM_BAR which is just a 1:1 mapping of said region.
Based on a patch from Michel Thierry.
v2 by Jani:
- use intel_uncore_read/intel_uncore_write
- remove trailing blank line
v3: s/drm_info/drm_dbg for info which in non-pertinent for the user
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210127131417.393872-2-matthew.auld@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index edbee9991248..9ac67e0534b7 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -46,7 +46,9 @@ int intel_gt_probe_lmem(struct intel_gt *gt) int id; int err; - mem = intel_gt_setup_fake_lmem(gt); + mem = intel_gt_setup_lmem(gt); + if (mem == ERR_PTR(-ENODEV)) + mem = intel_gt_setup_fake_lmem(gt); if (IS_ERR(mem)) { err = PTR_ERR(mem); if (err == -ENODEV) |