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drm/i915: Update bw_buddy pagemask table

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A recent bspec update removed the LPDDR4 single channel entry from the
buddy register table, but added a new four-channel entry.

Workaround 1409767108 hasn't been updated with any guidance for four
channel configurations, so we leave that alternate table unchanged for
now.

Bspec 49218
Fixes: 3fa01d642f ("drm/i915/tgl: Program BW_BUDDY registers during display init")
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612204734.3674650-1-matthew.d.roper@intel.com
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Matt Roper 2020-06-12 13:47:34 -07:00 committed by Rodrigo Vivi
parent 9a0a3bebb0
commit ecb40d0826
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/display/intel_display_power.c
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@ -5240,10 +5240,10 @@ struct buddy_page_mask {
};
static const struct buddy_page_mask tgl_buddy_page_masks[] = {
{ .num_channels = 1, .type = INTEL_DRAM_LPDDR4, .page_mask = 0xE },
{ .num_channels = 1, .type = INTEL_DRAM_DDR4, .page_mask = 0xF },
{ .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1C },
{ .num_channels = 2, .type = INTEL_DRAM_DDR4, .page_mask = 0x1F },
{ .num_channels = 4, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x38 },
{}
};