[PATCH AUTOSEL 6.10 002/121] drm/amd/display: Assign linear_pitch_alignment even for VM

From: Sasha Levin
Date: Wed Jul 31 2024 - 20:13:53 EST


From: Alvin Lee <alvin.lee2@xxxxxxx>

[ Upstream commit 984debc133efa05e62f5aa1a7a1dd8ca0ef041f4 ]

[Description]
Assign linear_pitch_alignment so we don't cause a divide by 0
error in VM environments

Reviewed-by: Sohaib Nadeem <sohaib.nadeem@xxxxxxx>
Acked-by: Wayne Lin <wayne.lin@xxxxxxx>
Signed-off-by: Alvin Lee <alvin.lee2@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 236876d95185b..da237f718dbdd 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1421,6 +1421,7 @@ struct dc *dc_create(const struct dc_init_data *init_params)
return NULL;

if (init_params->dce_environment == DCE_ENV_VIRTUAL_HW) {
+ dc->caps.linear_pitch_alignment = 64;
if (!dc_construct_ctx(dc, init_params))
goto destruct_dc;
} else {
--
2.43.0