From: Monk Liu Date: Mon, 1 May 2017 10:09:22 +0000 (+0800) Subject: drm/amdgpu:use FRAME_CNTL for new GFX ucode (v2) X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3b4d68e993d941ec993660f10bacdfd556731dc7;p=linux.git drm/amdgpu:use FRAME_CNTL for new GFX ucode (v2) AI affected: 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. v2: drop gfx8 changes. gfx8 is not affected (Alex) Signed-off-by: Monk Liu Reviewed-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 8edc26c3ce64e..70cebbe7f8d91 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1815,6 +1815,7 @@ 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 6e4ae0d983c21..72ded77f3ee74 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -208,6 +208,9 @@ 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 944443c5b90a2..2b7b3c56d446c 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 9b429f6975119..58cc585f57968 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -6664,7 +6664,6 @@ 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_rreg(struct amdgpu_ring *ring, uint32_t reg) { struct amdgpu_device *adev = ring->adev; diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 55a1ccc3619e0..6ac6e7512f49e 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -3237,6 +3237,12 @@ 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; @@ -3571,6 +3577,7 @@ 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 = {