[PATCH 202/459] drm/amdgpu/gfx10: adjust GDS backup size according to real size

[Alex Deucher]

From: Jack Xiao <Jack.Xiao at amd.com>

Adjust GDS backup size in metadata according to its real size in
chip.

Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index fae07603e121..014697f6bd10 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -4512,7 +4512,8 @@ static void gfx_v10_0_ring_emit_de_meta(struct amdgpu_ring *ring, bool resume)
 	int cnt;
 
 	csa_addr = amdgpu_csa_vaddr(ring->adev);
-	gds_addr = csa_addr + 4096;
+	gds_addr = ALIGN(csa_addr + AMDGPU_CSA_SIZE - adev->gds.mem.total_size,
+			 PAGE_SIZE);
 	de_payload.gds_backup_addrlo = lower_32_bits(gds_addr);
 	de_payload.gds_backup_addrhi = upper_32_bits(gds_addr);
 
-- 
2.20.1