This will be used to consolidate the register remap offset
configuration and fix HDP flushes on systems non-4K pages.
Reviewed-by: Felix Kuehling <felix.kuehling@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c
index a3622897e3fe3..da731a6f6c063 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c
@@ -475,6 +475,20 @@ static void nbio_v4_3_program_aspm(struct amdgpu_device *adev)
#endif
}
+#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
+
+static void nbio_v4_3_set_reg_remap(struct amdgpu_device *adev)
+{
+ if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
+ adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
+ adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
+ } else {
+ adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0,
+ regBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
+ adev->rmmio_remap.bus_addr = 0;
+ }
+}
+
const struct amdgpu_nbio_funcs nbio_v4_3_funcs = {
.get_hdp_flush_req_offset = nbio_v4_3_get_hdp_flush_req_offset,
.get_hdp_flush_done_offset = nbio_v4_3_get_hdp_flush_done_offset,
@@ -497,6 +511,7 @@ const struct amdgpu_nbio_funcs nbio_v4_3_funcs = {
.remap_hdp_registers = nbio_v4_3_remap_hdp_registers,
.get_rom_offset = nbio_v4_3_get_rom_offset,
.program_aspm = nbio_v4_3_program_aspm,
+ .set_reg_remap = nbio_v4_3_set_reg_remap,
};
@@ -541,6 +556,7 @@ const struct amdgpu_nbio_funcs nbio_v4_3_sriov_funcs = {
.init_registers = nbio_v4_3_init_registers,
.remap_hdp_registers = nbio_v4_3_remap_hdp_registers,
.get_rom_offset = nbio_v4_3_get_rom_offset,
+ .set_reg_remap = nbio_v4_3_set_reg_remap,
};
static int nbio_v4_3_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev,
--
2.44.0
