[PATCH] drm/amdgpu: Move to a per-IB secure flag (TMZ)
Luben Tuikov
luben.tuikov at amd.com
Thu Feb 13 22:03:07 UTC 2020
On 2020-02-13 09:57, Huang Rui wrote:
> On Thu, Feb 13, 2020 at 11:30:43AM +0100, Christian König wrote:
>> Am 13.02.20 um 01:54 schrieb Luben Tuikov:
>>> Move from a per-CS secure flag (TMZ) to a per-IB
>>> secure flag.
>>
>> Well that seems to make a lot of sense to me, but need to bit of time to
>> read into the PM4 handling of TMZ.
>>
>> Especially what is the "start" parameter good for?
>
> I see this patch just now. And yes, that's my purpose for the discussion.
Yes, I did discuss this implementation with Alex and we seem to be thinking
this would be the most flexible and accomodating way at the moment.
>
> Thanks!
>
> Reviewed-by: Huang Rui <ray.huang at amd.com>
Thans Ray, I'll wheel it off to submit into amdgpu-staging-drm-next.
Regards,
Luben
>
>>
>> Regards,
>> Christian.
>>
>>>
>>> Signed-off-by: Luben Tuikov <luben.tuikov at amd.com>
>>> ---
>>> drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 --
>>> drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 23 ++++++++++++++++++++---
>>> drivers/gpu/drm/amd/amdgpu/amdgpu_job.h | 3 ---
>>> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 9 ++++-----
>>> drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 23 +++++++----------------
>>> drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c | 3 +--
>>> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 3 +--
>>> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 3 +--
>>> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 20 ++++++--------------
>>> include/uapi/drm/amdgpu_drm.h | 7 ++++---
>>> 10 files changed, 44 insertions(+), 52 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> index 80ba6dfc54e2..f9fa6e104fef 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>>> @@ -231,8 +231,6 @@ static int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, union drm_amdgpu_cs
>>> if (ret)
>>> goto free_all_kdata;
>>> - p->job->secure = cs->in.flags & AMDGPU_CS_FLAGS_SECURE;
>>> -
>>> if (p->ctx->vram_lost_counter != p->job->vram_lost_counter) {
>>> ret = -ECANCELED;
>>> goto free_all_kdata;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
>>> index 6e0f97afb030..cae81914c821 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
>>> @@ -132,6 +132,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
>>> uint64_t fence_ctx;
>>> uint32_t status = 0, alloc_size;
>>> unsigned fence_flags = 0;
>>> + bool secure;
>>> unsigned i;
>>> int r = 0;
>>> @@ -213,9 +214,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
>>> if (job && ring->funcs->emit_cntxcntl) {
>>> status |= job->preamble_status;
>>> status |= job->preemption_status;
>>> - amdgpu_ring_emit_cntxcntl(ring, status, job->secure);
>>> + amdgpu_ring_emit_cntxcntl(ring, status);
>>> }
>>> + secure = false;
>>> for (i = 0; i < num_ibs; ++i) {
>>> ib = &ibs[i];
>>> @@ -227,12 +229,27 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
>>> !amdgpu_sriov_vf(adev)) /* for SRIOV preemption, Preamble CE ib must be inserted anyway */
>>> continue;
>>> + /* If this IB is TMZ, add frame TMZ start packet,
>>> + * else, turn off TMZ.
>>> + */
>>> + if (ib->flags & AMDGPU_IB_FLAGS_SECURE && ring->funcs->emit_tmz) {
>>> + if (!secure) {
>>> + secure = true;
>>> + amdgpu_ring_emit_tmz(ring, true);
>>> + }
>>> + } else if (secure) {
>>> + secure = false;
>>> + amdgpu_ring_emit_tmz(ring, false);
>>> + }
>>> +
>>> amdgpu_ring_emit_ib(ring, job, ib, status);
>>> status &= ~AMDGPU_HAVE_CTX_SWITCH;
>>> }
>>> - if (ring->funcs->emit_tmz)
>>> - amdgpu_ring_emit_tmz(ring, false, job ? job->secure : false);
>>> + if (secure) {
>>> + secure = false;
>>> + amdgpu_ring_emit_tmz(ring, false);
>>> + }
>>> #ifdef CONFIG_X86_64
>>> if (!(adev->flags & AMD_IS_APU))
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> index 31c4444b0203..2e2110dddb76 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
>>> @@ -61,9 +61,6 @@ struct amdgpu_job {
>>> /* user fence handling */
>>> uint64_t uf_addr;
>>> uint64_t uf_sequence;
>>> -
>>> - /* the job is due to a secure command submission */
>>> - bool secure;
>>> };
>>> int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
>>> index 5134d0dd6dc2..930316e60155 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
>>> @@ -158,8 +158,7 @@ struct amdgpu_ring_funcs {
>>> void (*begin_use)(struct amdgpu_ring *ring);
>>> void (*end_use)(struct amdgpu_ring *ring);
>>> void (*emit_switch_buffer) (struct amdgpu_ring *ring);
>>> - void (*emit_cntxcntl) (struct amdgpu_ring *ring, uint32_t flags,
>>> - bool trusted);
>>> + 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_reg_wait)(struct amdgpu_ring *ring, uint32_t reg,
>>> @@ -167,7 +166,7 @@ struct amdgpu_ring_funcs {
>>> void (*emit_reg_write_reg_wait)(struct amdgpu_ring *ring,
>>> uint32_t reg0, uint32_t reg1,
>>> uint32_t ref, uint32_t mask);
>>> - void (*emit_tmz)(struct amdgpu_ring *ring, bool start, bool trusted);
>>> + void (*emit_tmz)(struct amdgpu_ring *ring, bool start);
>>> /* priority functions */
>>> void (*set_priority) (struct amdgpu_ring *ring,
>>> enum drm_sched_priority priority);
>>> @@ -243,12 +242,12 @@ struct amdgpu_ring {
>>> #define amdgpu_ring_emit_gds_switch(r, v, db, ds, wb, ws, ab, as) (r)->funcs->emit_gds_switch((r), (v), (db), (ds), (wb), (ws), (ab), (as))
>>> #define amdgpu_ring_emit_hdp_flush(r) (r)->funcs->emit_hdp_flush((r))
>>> #define amdgpu_ring_emit_switch_buffer(r) (r)->funcs->emit_switch_buffer((r))
>>> -#define amdgpu_ring_emit_cntxcntl(r, d, s) (r)->funcs->emit_cntxcntl((r), (d), (s))
>>> +#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_reg_wait(r, d, v, m) (r)->funcs->emit_reg_wait((r), (d), (v), (m))
>>> #define amdgpu_ring_emit_reg_write_reg_wait(r, d0, d1, v, m) (r)->funcs->emit_reg_write_reg_wait((r), (d0), (d1), (v), (m))
>>> -#define amdgpu_ring_emit_tmz(r, b, s) (r)->funcs->emit_tmz((r), (b), (s))
>>> +#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/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> index 4e25b39ac14f..1a9787a0177e 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>>> @@ -256,8 +256,7 @@ static int gfx_v10_0_rlc_backdoor_autoload_enable(struct amdgpu_device *adev);
>>> static int gfx_v10_0_wait_for_rlc_autoload_complete(struct amdgpu_device *adev);
>>> static void gfx_v10_0_ring_emit_ce_meta(struct amdgpu_ring *ring, bool resume);
>>> static void gfx_v10_0_ring_emit_de_meta(struct amdgpu_ring *ring, bool resume);
>>> -static void gfx_v10_0_ring_emit_tmz(struct amdgpu_ring *ring, bool start,
>>> - bool trusted);
>>> +static void gfx_v10_0_ring_emit_tmz(struct amdgpu_ring *ring, bool start);
>>> static void gfx10_kiq_set_resources(struct amdgpu_ring *kiq_ring, uint64_t queue_mask)
>>> {
>>> @@ -4564,8 +4563,7 @@ static void gfx_v10_0_ring_emit_sb(struct amdgpu_ring *ring)
>>> }
>>> static void gfx_v10_0_ring_emit_cntxcntl(struct amdgpu_ring *ring,
>>> - uint32_t flags,
>>> - bool trusted)
>>> + uint32_t flags)
>>> {
>>> uint32_t dw2 = 0;
>>> @@ -4573,8 +4571,6 @@ static void gfx_v10_0_ring_emit_cntxcntl(struct amdgpu_ring *ring,
>>> gfx_v10_0_ring_emit_ce_meta(ring,
>>> flags & AMDGPU_IB_PREEMPTED ? true : false);
>>> - gfx_v10_0_ring_emit_tmz(ring, true, trusted);
>>> -
>>> dw2 |= 0x80000000; /* set load_enable otherwise this package is just NOPs */
>>> if (flags & AMDGPU_HAVE_CTX_SWITCH) {
>>> /* set load_global_config & load_global_uconfig */
>>> @@ -4731,17 +4727,12 @@ static void gfx_v10_0_ring_emit_de_meta(struct amdgpu_ring *ring, bool resume)
>>> sizeof(de_payload) >> 2);
>>> }
>>> -static void gfx_v10_0_ring_emit_tmz(struct amdgpu_ring *ring, bool start,
>>> - bool trusted)
>>> +static void gfx_v10_0_ring_emit_tmz(struct amdgpu_ring *ring, bool start)
>>> {
>>> - amdgpu_ring_write(ring, PACKET3(PACKET3_FRAME_CONTROL, 0));
>>> - /*
>>> - * cmd = 0: frame begin
>>> - * cmd = 1: frame end
>>> - */
>>> - amdgpu_ring_write(ring,
>>> - ((amdgpu_is_tmz(ring->adev) && trusted) ? FRAME_TMZ : 0)
>>> - | FRAME_CMD(start ? 0 : 1));
>>> + if (amdgpu_is_tmz(ring->adev)) {
>>> + amdgpu_ring_write(ring, PACKET3(PACKET3_FRAME_CONTROL, 0));
>>> + amdgpu_ring_write(ring, FRAME_TMZ | FRAME_CMD(start ? 0 : 1));
>>> + }
>>> }
>>> static void gfx_v10_0_ring_emit_rreg(struct amdgpu_ring *ring, uint32_t reg)
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
>>> index 95bb2422b27c..31f44d05e606 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
>>> @@ -2973,8 +2973,7 @@ static uint64_t gfx_v6_0_get_gpu_clock_counter(struct amdgpu_device *adev)
>>> return clock;
>>> }
>>> -static void gfx_v6_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags,
>>> - bool trusted)
>>> +static void gfx_v6_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags)
>>> {
>>> if (flags & AMDGPU_HAVE_CTX_SWITCH)
>>> gfx_v6_0_ring_emit_vgt_flush(ring);
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>>> index 648d767d14e7..8f20a5dd44fe 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
>>> @@ -2320,8 +2320,7 @@ static void gfx_v7_0_ring_emit_ib_compute(struct amdgpu_ring *ring,
>>> amdgpu_ring_write(ring, control);
>>> }
>>> -static void gfx_v7_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags,
>>> - bool trusted)
>>> +static void gfx_v7_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags)
>>> {
>>> uint32_t dw2 = 0;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
>>> index a46ec1c9846e..fa245973de12 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
>>> @@ -6386,8 +6386,7 @@ static void gfx_v8_ring_emit_sb(struct amdgpu_ring *ring)
>>> amdgpu_ring_write(ring, 0);
>>> }
>>> -static void gfx_v8_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags,
>>> - bool trusted)
>>> +static void gfx_v8_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags)
>>> {
>>> uint32_t dw2 = 0;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>>> index e5753746cbf9..9d3805488832 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>>> @@ -5212,29 +5212,21 @@ static void gfx_v9_0_ring_emit_de_meta(struct amdgpu_ring *ring)
>>> amdgpu_ring_write_multiple(ring, (void *)&de_payload, sizeof(de_payload) >> 2);
>>> }
>>> -static void gfx_v9_0_ring_emit_tmz(struct amdgpu_ring *ring, bool start,
>>> - bool trusted)
>>> +static void gfx_v9_0_ring_emit_tmz(struct amdgpu_ring *ring, bool start)
>>> {
>>> - amdgpu_ring_write(ring, PACKET3(PACKET3_FRAME_CONTROL, 0));
>>> - /*
>>> - * cmd = 0: frame begin
>>> - * cmd = 1: frame end
>>> - */
>>> - amdgpu_ring_write(ring,
>>> - ((amdgpu_is_tmz(ring->adev) && trusted) ? FRAME_TMZ : 0)
>>> - | FRAME_CMD(start ? 0 : 1));
>>> + if (amdgpu_is_tmz(ring->adev)) {
>>> + amdgpu_ring_write(ring, PACKET3(PACKET3_FRAME_CONTROL, 0));
>>> + amdgpu_ring_write(ring, FRAME_TMZ | FRAME_CMD(start ? 0 : 1));
>>> + }
>>> }
>>> -static void gfx_v9_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags,
>>> - bool trusted)
>>> +static void gfx_v9_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags)
>>> {
>>> uint32_t dw2 = 0;
>>> if (amdgpu_sriov_vf(ring->adev))
>>> gfx_v9_0_ring_emit_ce_meta(ring);
>>> - gfx_v9_0_ring_emit_tmz(ring, true, trusted);
>>> -
>>> dw2 |= 0x80000000; /* set load_enable otherwise this package is just NOPs */
>>> if (flags & AMDGPU_HAVE_CTX_SWITCH) {
>>> /* set load_global_config & load_global_uconfig */
>>> diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
>>> index 918ac3548cd3..eaf94a421901 100644
>>> --- a/include/uapi/drm/amdgpu_drm.h
>>> +++ b/include/uapi/drm/amdgpu_drm.h
>>> @@ -556,9 +556,6 @@ struct drm_amdgpu_cs_chunk {
>>> __u64 chunk_data;
>>> };
>>> -/* Flag the command submission as secure */
>>> -#define AMDGPU_CS_FLAGS_SECURE (1 << 0)
>>> -
>>> struct drm_amdgpu_cs_in {
>>> /** Rendering context id */
>>> __u32 ctx_id;
>>> @@ -599,6 +596,10 @@ union drm_amdgpu_cs {
>>> */
>>> #define AMDGPU_IB_FLAG_RESET_GDS_MAX_WAVE_ID (1 << 4)
>>> +/* Flag the IB as secure (TMZ)
>>> + */
>>> +#define AMDGPU_IB_FLAGS_SECURE (1 << 5)
>>> +
>>> struct drm_amdgpu_cs_chunk_ib {
>>> __u32 _pad;
>>> /** AMDGPU_IB_FLAG_* */
>>
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