This adds support for writing and reading back in a single
oneshot packet. This is needed to send a tlb invalidation
and wait for ack in a single operation.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 1ae3de1094f9..c1c033edabfa 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4078,6 +4078,13 @@ static void gfx_v9_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
gfx_v9_0_wait_reg_mem(ring, 0, 0, 0, reg, 0, val, mask, 0x20);
}
+static void gfx_v9_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
+ uint32_t reg0, uint32_t reg1,
+ uint32_t ref, uint32_t mask)
+{
+ gfx_v9_0_wait_reg_mem(ring, 0, 0, 1, reg0, reg1, ref, mask, 0x20);
+}
+
static void gfx_v9_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,
enum amdgpu_interrupt_state state)
{
@@ -4399,6 +4406,7 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_gfx = {
.emit_tmz = gfx_v9_0_ring_emit_tmz,
.emit_wreg = gfx_v9_0_ring_emit_wreg,
.emit_reg_wait = gfx_v9_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = gfx_v9_0_ring_emit_reg_write_reg_wait,
};
static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_compute = {
@@ -4433,6 +4441,7 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_compute = {
.set_priority = gfx_v9_0_ring_set_priority_compute,
.emit_wreg = gfx_v9_0_ring_emit_wreg,
.emit_reg_wait = gfx_v9_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = gfx_v9_0_ring_emit_reg_write_reg_wait,
};
static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_kiq = {
@@ -4463,6 +4472,7 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_kiq = {
.emit_rreg = gfx_v9_0_ring_emit_rreg,
.emit_wreg = gfx_v9_0_ring_emit_wreg,
.emit_reg_wait = gfx_v9_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = gfx_v9_0_ring_emit_reg_write_reg_wait,
};
static void gfx_v9_0_set_ring_funcs(struct amdgpu_device *adev)
--
2.13.6
