From: Leo Liu <leo.liu@amd.com>
Date: Tue, 21 Feb 2017 10:36:15 -0500
Subject: drm/amdgpu: add vcn enc ring type and functions
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Git-commit: 8ace845ff0e8fc610686c0fa12ec05130fbf1f6b
Patch-mainline: v4.13-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Add the ring function callbacks for the encode rings.
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 3
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 8 +
drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 170 +++++++++++++++++++++++++++++++
3 files changed, 180 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -48,7 +48,8 @@ enum amdgpu_ring_type {
AMDGPU_RING_TYPE_VCE,
AMDGPU_RING_TYPE_KIQ,
AMDGPU_RING_TYPE_UVD_ENC,
- AMDGPU_RING_TYPE_VCN_DEC
+ AMDGPU_RING_TYPE_VCN_DEC,
+ AMDGPU_RING_TYPE_VCN_ENC
};
struct amdgpu_device;
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -37,6 +37,14 @@
#define VCN_DEC_CMD_PACKET_START 0x0000000a
#define VCN_DEC_CMD_PACKET_END 0x0000000b
+#define VCN_ENC_CMD_NO_OP 0x00000000
+#define VCN_ENC_CMD_END 0x00000001
+#define VCN_ENC_CMD_IB 0x00000002
+#define VCN_ENC_CMD_FENCE 0x00000003
+#define VCN_ENC_CMD_TRAP 0x00000004
+#define VCN_ENC_CMD_REG_WRITE 0x0000000b
+#define VCN_ENC_CMD_REG_WAIT 0x0000000c
+
struct amdgpu_vcn {
struct amdgpu_bo *vcpu_bo;
void *cpu_addr;
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -38,6 +38,7 @@
static int vcn_v1_0_start(struct amdgpu_device *adev);
static int vcn_v1_0_stop(struct amdgpu_device *adev);
static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev);
+static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev);
static void vcn_v1_0_set_irq_funcs(struct amdgpu_device *adev);
/**
@@ -54,6 +55,7 @@ static int vcn_v1_0_early_init(void *han
adev->vcn.num_enc_rings = 2;
vcn_v1_0_set_dec_ring_funcs(adev);
+ vcn_v1_0_set_enc_ring_funcs(adev);
vcn_v1_0_set_irq_funcs(adev);
return 0;
@@ -688,6 +690,141 @@ static void vcn_v1_0_dec_ring_emit_vm_fl
vcn_v1_0_dec_vm_reg_wait(ring, data0, data1, mask);
}
+/**
+ * vcn_v1_0_enc_ring_get_rptr - get enc read pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware enc read pointer
+ */
+static uint64_t vcn_v1_0_enc_ring_get_rptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (ring == &adev->vcn.ring_enc[0])
+ return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_RPTR));
+ else
+ return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_RPTR2));
+}
+
+ /**
+ * vcn_v1_0_enc_ring_get_wptr - get enc write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Returns the current hardware enc write pointer
+ */
+static uint64_t vcn_v1_0_enc_ring_get_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (ring == &adev->vcn.ring_enc[0])
+ return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR));
+ else
+ return RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR2));
+}
+
+ /**
+ * vcn_v1_0_enc_ring_set_wptr - set enc write pointer
+ *
+ * @ring: amdgpu_ring pointer
+ *
+ * Commits the enc write pointer to the hardware
+ */
+static void vcn_v1_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+
+ if (ring == &adev->vcn.ring_enc[0])
+ WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR),
+ lower_32_bits(ring->wptr));
+ else
+ WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_RB_WPTR2),
+ lower_32_bits(ring->wptr));
+}
+
+/**
+ * vcn_v1_0_enc_ring_emit_fence - emit an enc fence & trap command
+ *
+ * @ring: amdgpu_ring pointer
+ * @fence: fence to emit
+ *
+ * Write enc a fence and a trap command to the ring.
+ */
+static void vcn_v1_0_enc_ring_emit_fence(struct amdgpu_ring *ring, u64 addr,
+ u64 seq, unsigned flags)
+{
+ WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
+
+ amdgpu_ring_write(ring, VCN_ENC_CMD_FENCE);
+ amdgpu_ring_write(ring, addr);
+ amdgpu_ring_write(ring, upper_32_bits(addr));
+ amdgpu_ring_write(ring, seq);
+ amdgpu_ring_write(ring, VCN_ENC_CMD_TRAP);
+}
+
+static void vcn_v1_0_enc_ring_insert_end(struct amdgpu_ring *ring)
+{
+ amdgpu_ring_write(ring, VCN_ENC_CMD_END);
+}
+
+/**
+ * vcn_v1_0_enc_ring_emit_ib - enc execute indirect buffer
+ *
+ * @ring: amdgpu_ring pointer
+ * @ib: indirect buffer to execute
+ *
+ * Write enc ring commands to execute the indirect buffer
+ */
+static void vcn_v1_0_enc_ring_emit_ib(struct amdgpu_ring *ring,
+ struct amdgpu_ib *ib, unsigned int vm_id, bool ctx_switch)
+{
+ amdgpu_ring_write(ring, VCN_ENC_CMD_IB);
+ amdgpu_ring_write(ring, vm_id);
+ amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr));
+ amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
+ amdgpu_ring_write(ring, ib->length_dw);
+}
+
+static void vcn_v1_0_enc_ring_emit_vm_flush(struct amdgpu_ring *ring,
+ unsigned int vm_id, uint64_t pd_addr)
+{
+ struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
+ uint32_t req = ring->adev->gart.gart_funcs->get_invalidate_req(vm_id);
+ unsigned eng = ring->vm_inv_eng;
+
+ pd_addr = pd_addr | 0x1; /* valid bit */
+ /* now only use physical base address of PDE and valid */
+ BUG_ON(pd_addr & 0xFFFF00000000003EULL);
+
+ amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
+ amdgpu_ring_write(ring,
+ (hub->ctx0_ptb_addr_hi32 + vm_id * 2) << 2);
+ amdgpu_ring_write(ring, upper_32_bits(pd_addr));
+
+ amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
+ amdgpu_ring_write(ring,
+ (hub->ctx0_ptb_addr_lo32 + vm_id * 2) << 2);
+ amdgpu_ring_write(ring, lower_32_bits(pd_addr));
+
+ amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
+ amdgpu_ring_write(ring,
+ (hub->ctx0_ptb_addr_lo32 + vm_id * 2) << 2);
+ amdgpu_ring_write(ring, 0xffffffff);
+ amdgpu_ring_write(ring, lower_32_bits(pd_addr));
+
+ /* flush TLB */
+ amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WRITE);
+ amdgpu_ring_write(ring, (hub->vm_inv_eng0_req + eng) << 2);
+ amdgpu_ring_write(ring, req);
+
+ /* wait for flush */
+ amdgpu_ring_write(ring, VCN_ENC_CMD_REG_WAIT);
+ amdgpu_ring_write(ring, (hub->vm_inv_eng0_ack + eng) << 2);
+ amdgpu_ring_write(ring, 1 << vm_id);
+ amdgpu_ring_write(ring, 1 << vm_id);
+}
+
static int vcn_v1_0_set_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
unsigned type,
@@ -755,12 +892,45 @@ static const struct amdgpu_ring_funcs vc
.end_use = amdgpu_vcn_ring_end_use,
};
+static const struct amdgpu_ring_funcs vcn_v1_0_enc_ring_vm_funcs = {
+ .type = AMDGPU_RING_TYPE_VCN_ENC,
+ .align_mask = 0x3f,
+ .nop = VCN_ENC_CMD_NO_OP,
+ .support_64bit_ptrs = false,
+ .get_rptr = vcn_v1_0_enc_ring_get_rptr,
+ .get_wptr = vcn_v1_0_enc_ring_get_wptr,
+ .set_wptr = vcn_v1_0_enc_ring_set_wptr,
+ .emit_frame_size =
+ 17 * AMDGPU_MAX_VMHUBS + /* vcn_v1_0_enc_ring_emit_vm_flush */
+ 5 + 5 + /* vcn_v1_0_enc_ring_emit_fence x2 vm fence */
+ 1, /* vcn_v1_0_enc_ring_insert_end */
+ .emit_ib_size = 5, /* vcn_v1_0_enc_ring_emit_ib */
+ .emit_ib = vcn_v1_0_enc_ring_emit_ib,
+ .emit_fence = vcn_v1_0_enc_ring_emit_fence,
+ .emit_vm_flush = vcn_v1_0_enc_ring_emit_vm_flush,
+ .insert_nop = amdgpu_ring_insert_nop,
+ .insert_end = vcn_v1_0_enc_ring_insert_end,
+ .pad_ib = amdgpu_ring_generic_pad_ib,
+ .begin_use = amdgpu_vcn_ring_begin_use,
+ .end_use = amdgpu_vcn_ring_end_use,
+};
+
static void vcn_v1_0_set_dec_ring_funcs(struct amdgpu_device *adev)
{
adev->vcn.ring_dec.funcs = &vcn_v1_0_dec_ring_vm_funcs;
DRM_INFO("VCN decode is enabled in VM mode\n");
}
+static void vcn_v1_0_set_enc_ring_funcs(struct amdgpu_device *adev)
+{
+ int i;
+
+ for (i = 0; i < adev->vcn.num_enc_rings; ++i)
+ adev->vcn.ring_enc[i].funcs = &vcn_v1_0_enc_ring_vm_funcs;
+
+ DRM_INFO("VCN encode is enabled in VM mode\n");
+}
+
static const struct amdgpu_irq_src_funcs vcn_v1_0_irq_funcs = {
.set = vcn_v1_0_set_interrupt_state,
.process = vcn_v1_0_process_interrupt,