Am 29.03.23 um 17:25 schrieb Alex Deucher:
From: Christian König <christian.koenig@xxxxxxx>
Add ring callback for gfx to update the CP firmware
with the new shadow information before we process the
IB.
v2: add implementation for new packet (Alex)
v3: add current FW version checks (Alex)
v4: only initialize shadow on first use
Only set IB_VMID when a valid shadow buffer is present
(Alex)
v5: Pass parameters rather than job to new ring callback (Alex)
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 25 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/nvd.h | 5 ++++-
2 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 4a50d0fbcdcf..1fc1e941f7df 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -5598,6 +5598,29 @@ static void gfx_v11_0_ring_emit_cntxcntl(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, 0);
}
+static void gfx_v11_0_ring_emit_gfx_shadow(struct amdgpu_ring *ring,
+ u64 shadow_va, u64 csa_va,
+ u64 gds_va, bool init_shadow,
+ int vmid)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (!adev->gfx.cp_gfx_shadow)
+ return;
+
+ amdgpu_ring_write(ring, PACKET3(PACKET3_SET_Q_PREEMPTION_MODE, 7));
+ amdgpu_ring_write(ring, lower_32_bits(shadow_va));
+ amdgpu_ring_write(ring, upper_32_bits(shadow_va));
+ amdgpu_ring_write(ring, lower_32_bits(gds_va));
+ amdgpu_ring_write(ring, upper_32_bits(gds_va));
+ amdgpu_ring_write(ring, lower_32_bits(csa_va));
+ amdgpu_ring_write(ring, upper_32_bits(csa_va));
+ amdgpu_ring_write(ring, shadow_va ?
+ PACKET3_SET_Q_PREEMPTION_MODE_IB_VMID(vmid): 0);
+ amdgpu_ring_write(ring, init_shadow ?
+ PACKET3_SET_Q_PREEMPTION_MODE_INIT_SHADOW_MEM : 0);
+}
+
static unsigned gfx_v11_0_ring_emit_init_cond_exec(struct amdgpu_ring *ring)
{
unsigned ret;
@@ -6219,6 +6242,7 @@ static const struct amdgpu_ring_funcs gfx_v11_0_ring_funcs_gfx = {
.set_wptr = gfx_v11_0_ring_set_wptr_gfx,
.emit_frame_size = /* totally 242 maximum if 16 IBs */
5 + /* COND_EXEC */
+ 9 + /* SET_Q_PREEMPTION_MODE */
7 + /* PIPELINE_SYNC */
SOC15_FLUSH_GPU_TLB_NUM_WREG * 5 +
SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 7 +
@@ -6245,6 +6269,7 @@ static const struct amdgpu_ring_funcs gfx_v11_0_ring_funcs_gfx = {
.insert_nop = amdgpu_ring_insert_nop,
.pad_ib = amdgpu_ring_generic_pad_ib,
.emit_cntxcntl = gfx_v11_0_ring_emit_cntxcntl,
+ .emit_gfx_shadow = gfx_v11_0_ring_emit_gfx_shadow,
.init_cond_exec = gfx_v11_0_ring_emit_init_cond_exec,
.patch_cond_exec = gfx_v11_0_ring_emit_patch_cond_exec,
.preempt_ib = gfx_v11_0_ring_preempt_ib,
diff --git a/drivers/gpu/drm/amd/amdgpu/nvd.h b/drivers/gpu/drm/amd/amdgpu/nvd.h
index fd6b58243b03..631dafb92299 100644
--- a/drivers/gpu/drm/amd/amdgpu/nvd.h
+++ b/drivers/gpu/drm/amd/amdgpu/nvd.h
@@ -462,6 +462,9 @@
# define PACKET3_QUERY_STATUS_ENG_SEL(x) ((x) << 25)
#define PACKET3_RUN_LIST 0xA5
#define PACKET3_MAP_PROCESS_VM 0xA6
-
+/* GFX11 */
+#define PACKET3_SET_Q_PREEMPTION_MODE 0xF0
+# define PACKET3_SET_Q_PREEMPTION_MODE_IB_VMID(x) ((x) << 0)
+# define PACKET3_SET_Q_PREEMPTION_MODE_INIT_SHADOW_MEM (1 << 0)
#endif
