drm/amdgpu: Fix offset for HDP remap in nbio v7.11

Lijo Lazar · alexdeucher · commit 79af0604eb80 · 2025-05-01T11:01:46.000-04:00
APUs in passthrough mode use HDP flush. 0x7F000 offset used for remapping HDP flush is mapped to VPE space which could get power gated. Use another unused offset in BIF space. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit d8116a3) Cc: stable@vger.kernel.org
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
@@ -360,7 +360,7 @@ static void nbio_v7_11_get_clockgating_state(struct amdgpu_device *adev,
 		*flags |= AMD_CG_SUPPORT_BIF_LS;
 }
 
-#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
+#define MMIO_REG_HOLE_OFFSET 0x44000
 
 static void nbio_v7_11_set_reg_remap(struct amdgpu_device *adev)
 {

Original file line number	Diff line number	Diff line change
`@@ -360,7 +360,7 @@ static void nbio_v7_11_get_clockgating_state(struct amdgpu_device *adev,`
`360`	`360`	`*flags \|= AMD_CG_SUPPORT_BIF_LS;`
`361`	`361`	`}`
`362`	`362`
`363`		`-#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)`
	`363`	`+#define MMIO_REG_HOLE_OFFSET 0x44000`
`364`	`364`
`365`	`365`	`static void nbio_v7_11_set_reg_remap(struct amdgpu_device *adev)`
`366`	`366`	`{`