[Intel-gfx] [PATCH] drm/i915/display: Add DDR5 and LPDDR5 BW buddy page entries

José Roberto de Souza jose.souza at intel.com
Tue Feb 9 17:42:38 UTC 2021


Set the right BW buddy page mask for new memory types.

BSpec: 49218
Cc: Clint Taylor <clinton.a.taylor at intel.com>
Cc: Matt Roper <matthew.d.roper at intel.com>
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_power.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index e17b1ca356c3..f00c1750febd 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -5317,17 +5317,25 @@ struct buddy_page_mask {
 
 static const struct buddy_page_mask tgl_buddy_page_masks[] = {
 	{ .num_channels = 1, .type = INTEL_DRAM_DDR4,   .page_mask = 0xF },
+	{ .num_channels = 1, .type = INTEL_DRAM_DDR5,	.page_mask = 0xF },
 	{ .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1C },
+	{ .num_channels = 2, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x1C },
 	{ .num_channels = 2, .type = INTEL_DRAM_DDR4,   .page_mask = 0x1F },
+	{ .num_channels = 2, .type = INTEL_DRAM_DDR5,   .page_mask = 0x1E },
 	{ .num_channels = 4, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x38 },
+	{ .num_channels = 4, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x38 },
 	{}
 };
 
 static const struct buddy_page_mask wa_1409767108_buddy_page_masks[] = {
 	{ .num_channels = 1, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1 },
 	{ .num_channels = 1, .type = INTEL_DRAM_DDR4,   .page_mask = 0x1 },
+	{ .num_channels = 1, .type = INTEL_DRAM_DDR5,   .page_mask = 0x1 },
+	{ .num_channels = 1, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x1 },
 	{ .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x3 },
 	{ .num_channels = 2, .type = INTEL_DRAM_DDR4,   .page_mask = 0x3 },
+	{ .num_channels = 2, .type = INTEL_DRAM_DDR5,   .page_mask = 0x3 },
+	{ .num_channels = 2, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x3 },
 	{}
 };
 
-- 
2.30.0



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