From 5fd73c53701327e725cd4ca70decb5c9a61f3bac Mon Sep 17 00:00:00 2001 From: Matt Roper Date: Fri, 12 Jun 2020 13:47:34 -0700 Subject: drm/i915: Update bw_buddy pagemask table 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: 3fa01d642fa7 ("drm/i915/tgl: Program BW_BUDDY registers during display init") Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20200612204734.3674650-1-matthew.d.roper@intel.com Reviewed-by: Lucas De Marchi Signed-off-by: Rodrigo Vivi (cherry picked from commit ecb40d0826fda213ebb58d49e7d5b4752480e130) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_display_power.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 0c713e83274d..4929d890bd1c 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -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 }, {} }; -- cgit v1.2.3