FW: [PATCH 1/2] drm/amdgpu:use FRAME_CNTL for new GFX ucode
Liu, Monk
Monk.Liu at amd.com
Thu May 4 11:42:30 UTC 2017
No, this CP side change is from VI, and ported to AI
-----Original Message-----
From: Nicolai Hähnle [mailto:nhaehnle at gmail.com]
Sent: Thursday, May 04, 2017 7:33 PM
To: Liu, Monk <Monk.Liu at amd.com>; amd-gfx at lists.freedesktop.org
Subject: Re: FW: [PATCH 1/2] drm/amdgpu:use FRAME_CNTL for new GFX ucode
On 04.05.2017 12:48, Liu, Monk wrote:
>
>
> -----Original Message-----
> From: Monk Liu [mailto:Monk.Liu at amd.com]
> Sent: Thursday, May 04, 2017 6:47 PM
> To: Liu, Monk <Monk.Liu at amd.com>
> Cc: Liu, Monk <Monk.Liu at amd.com>
> Subject: [PATCH 1/2] drm/amdgpu:use FRAME_CNTL for new GFX ucode
>
> VI/AI affected:
I thought this was a gfx9-only change? If it's gfx8 also, we're going to have pretty bad compatibility issues when new firmware is used with old kernel...
Cheers,
Nicolai
>
> CP/HW team requires KMD insert FRAME_CONTROL(end) after the last IB and before the fence of this DMAframe.
>
> this is to make sure the cache are flushed, and it's a must change no matter MCBP/SR-IOV or bare-metal case because new CP hw won't do the cache flush for each IB anymore, it just leaves it to KMD now.
>
> with this patch, certain MCBP hang issue when rendering vulkan/chained-ib are resolved.
>
> Change-Id: I34ee7528aa32e704b2850bc6d50774b24c29b840
> Signed-off-by: Monk Liu <Monk.Liu at amd.com>
> Reviewed-by: Christian König <christian.koenig at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 3 +++
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 +
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 7 +++++++
> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 7 +++++++
> 5 files changed, 19 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 0ee4d87..f59a1e5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -1828,6 +1828,7 @@ amdgpu_get_sdma_instance(struct amdgpu_ring
> *ring) #define amdgpu_ring_emit_cntxcntl(r, d)
> (r)->funcs->emit_cntxcntl((r), (d)) #define amdgpu_ring_emit_rreg(r,
> d) (r)->funcs->emit_rreg((r), (d)) #define amdgpu_ring_emit_wreg(r,
> d, v) (r)->funcs->emit_wreg((r), (d), (v))
> +#define amdgpu_ring_emit_tmz(r, b) (r)->funcs->emit_tmz((r), (b))
> #define amdgpu_ring_pad_ib(r, ib) ((r)->funcs->pad_ib((r), (ib)))
> #define amdgpu_ring_init_cond_exec(r) (r)->funcs->init_cond_exec((r))
> #define amdgpu_ring_patch_cond_exec(r,o)
> (r)->funcs->patch_cond_exec((r),(o))
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> index 4480e01..11a22fa 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> @@ -206,6 +206,9 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
> need_ctx_switch = false;
> }
>
> + if (ring->funcs->emit_tmz)
> + amdgpu_ring_emit_tmz(ring, false);
> +
> if (ring->funcs->emit_hdp_invalidate #ifdef CONFIG_X86_64
> && !(adev->flags & AMD_IS_APU)
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> index 5786cc3..981ef08 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> @@ -142,6 +142,7 @@ struct amdgpu_ring_funcs {
> void (*emit_cntxcntl) (struct amdgpu_ring *ring, uint32_t flags);
> void (*emit_rreg)(struct amdgpu_ring *ring, uint32_t reg);
> void (*emit_wreg)(struct amdgpu_ring *ring, uint32_t reg, uint32_t
> val);
> + void (*emit_tmz)(struct amdgpu_ring *ring, bool start);
> };
>
> struct amdgpu_ring {
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 4144fc3..90998f6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -6665,6 +6665,12 @@ static void gfx_v8_0_ring_emit_patch_cond_exec(struct amdgpu_ring *ring, unsigne
> ring->ring[offset] = (ring->ring_size >> 2) - offset + cur; }
>
> +static void gfx_v8_0_ring_emit_tmz(struct amdgpu_ring *ring, bool
> +start) {
> + amdgpu_ring_write(ring, PACKET3(PACKET3_FRAME_CONTROL, 0));
> + amdgpu_ring_write(ring, FRAME_CMD(start ? 0 : 1)); /* frame_end */ }
> +
>
> static void gfx_v8_0_ring_emit_rreg(struct amdgpu_ring *ring, uint32_t reg) { @@ -6946,6 +6952,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = {
> .emit_cntxcntl = gfx_v8_ring_emit_cntxcntl,
> .init_cond_exec = gfx_v8_0_ring_emit_init_cond_exec,
> .patch_cond_exec = gfx_v8_0_ring_emit_patch_cond_exec,
> + .emit_tmz = gfx_v8_0_ring_emit_tmz,
> };
>
> static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = {
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 3bf7992..a9ca891 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -3245,6 +3245,12 @@ static void gfx_v9_0_ring_emit_patch_cond_exec(struct amdgpu_ring *ring, unsigne
> ring->ring[offset] = (ring->ring_size>>2) - offset + cur; }
>
> +static void gfx_v9_0_ring_emit_tmz(struct amdgpu_ring *ring, bool
> +start) {
> + amdgpu_ring_write(ring, PACKET3(PACKET3_FRAME_CONTROL, 0));
> + amdgpu_ring_write(ring, FRAME_CMD(start ? 0 : 1)); /* frame_end */ }
> +
> static void gfx_v9_0_ring_emit_rreg(struct amdgpu_ring *ring, uint32_t reg) {
> struct amdgpu_device *adev = ring->adev; @@ -3579,6 +3585,7 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_gfx = {
> .emit_cntxcntl = gfx_v9_ring_emit_cntxcntl,
> .init_cond_exec = gfx_v9_0_ring_emit_init_cond_exec,
> .patch_cond_exec = gfx_v9_0_ring_emit_patch_cond_exec,
> + .emit_tmz = gfx_v9_0_ring_emit_tmz,
> };
>
> static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_compute = {
> --
> 2.7.4
>
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