José Roberto de Souza f73ec12dc7 drm/i915/gen11+: Only load DRAM information from pcode
[ Upstream commit 5d0c938ec9cc96fc7b8abcff0ca8b2a084e9c90c ]

Up to now we were reading some DRAM information from MCHBAR register
and from pcode what is already not good but some GEN12(TGL-H and ADL-S)
platforms have MCHBAR DRAM information in different offsets.

This was notified to HW team that decided that the best alternative is
always apply the 16gb_dimm watermark adjustment for GEN12+ platforms
and read the remaning DRAM information needed to other display
programming from pcode.

So here moving the DRAM pcode function to intel_dram.c, removing
the duplicated fields from intel_qgv_info, setting and using
information from dram_info.

v2:
- bring back num_points to intel_qgv_info as num_qgv_point can be
overwritten in icl_get_qgv_points()
- add gen12_get_dram_info() and simplify gen11_get_dram_info()

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210128164312.91160-2-jose.souza@intel.com
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-21 15:45:41 +02:00
..
2023-06-14 11:09:57 +02:00
2023-02-22 12:56:00 +01:00
2023-05-17 11:47:56 +02:00
2023-04-05 11:23:47 +02:00