Am 17.03.23 um 18:17 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)
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | 2 ++
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 46 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/nvd.h | 5 ++-
3 files changed, 52 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
index de9e7a00bb15..4ad9e225d6e6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
@@ -364,6 +364,8 @@ struct amdgpu_gfx {
struct amdgpu_ring sw_gfx_ring[AMDGPU_MAX_SW_GFX_RINGS];
struct amdgpu_ring_mux muxer;
+
+ bool cp_gfx_shadow; /* for gfx11 */
};
#define amdgpu_gfx_get_gpu_clock_counter(adev) (adev)->gfx.funcs->get_gpu_clock_counter((adev))
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 3bf697a80cf2..166a3f640042 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -463,6 +463,27 @@ static int gfx_v11_0_init_toc_microcode(struct amdgpu_device *adev, const char *
return err;
}
+static void gfx_v11_0_check_fw_cp_gfx_shadow(struct amdgpu_device *adev)
+{
+ switch (adev->ip_versions[GC_HWIP][0]) {
+ case IP_VERSION(11, 0, 0):
+ case IP_VERSION(11, 0, 2):
+ case IP_VERSION(11, 0, 3):
+ /* XXX fix me! */
+ if ((adev->gfx.me_fw_version >= 1498) &&
+ (adev->gfx.me_feature_version >= 29) &&
+ (adev->gfx.pfp_fw_version >= 1541) &&
+ (adev->gfx.pfp_feature_version >= 29) &&
+ (adev->gfx.mec_fw_version >= 507) &&
+ (adev->gfx.mec_feature_version >= 29))
+ adev->gfx.cp_gfx_shadow = true;
+ break;
+ default:
+ adev->gfx.cp_gfx_shadow = false;
+ break;
+ }
+}
+
static int gfx_v11_0_init_microcode(struct amdgpu_device *adev)
{
char fw_name[40];
@@ -539,6 +560,7 @@ static int gfx_v11_0_init_microcode(struct amdgpu_device *adev)
/* only one MEC for gfx 11.0.0. */
adev->gfx.mec2_fw = NULL;
+ gfx_v11_0_check_fw_cp_gfx_shadow(adev);
out:
if (err) {
amdgpu_ucode_release(&adev->gfx.pfp_fw);
@@ -5563,6 +5585,28 @@ 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,
+ struct amdgpu_job *job)
Better give the values to use here instead of the job structure.
Regards,
Christian.
+{
+ unsigned vmid = AMDGPU_JOB_GET_VMID(job);
+ 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(job->shadow_va));
+ amdgpu_ring_write(ring, upper_32_bits(job->shadow_va));
+ amdgpu_ring_write(ring, lower_32_bits(job->gds_va));
+ amdgpu_ring_write(ring, upper_32_bits(job->gds_va));
+ amdgpu_ring_write(ring, lower_32_bits(job->csa_va));
+ amdgpu_ring_write(ring, upper_32_bits(job->csa_va));
+ amdgpu_ring_write(ring, job->shadow_va ?
+ PACKET3_SET_Q_PREEMPTION_MODE_IB_VMID(vmid) : 0);
+ amdgpu_ring_write(ring, job->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;
@@ -6183,6 +6227,7 @@ 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 +
@@ -6209,6 +6254,7 @@ 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
