From ebff485e9314f8c53f6b22eba0dfbec7228ab268 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Wed, 20 Jul 2016 16:53:36 +0200 Subject: [PATCH] drm/amdgpu: use begin/end_use for VCE power/clock gating MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes turning power and clock on when it is actually needed. Signed-off-by: Christian König Reviewed-by: Edward O'Callaghan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c | 37 ++++++++++++++++--------- drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h | 2 ++ drivers/gpu/drm/amd/amdgpu/vce_v2_0.c | 2 ++ drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 2 ++ 5 files changed, 31 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 51c4924b60b7..02a0d19ce54c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1702,6 +1702,7 @@ struct amdgpu_vce { struct drm_file *filp[AMDGPU_MAX_VCE_HANDLES]; uint32_t img_size[AMDGPU_MAX_VCE_HANDLES]; struct delayed_work idle_work; + struct mutex idle_mutex; const struct firmware *fw; /* VCE firmware */ struct amdgpu_ring ring[AMDGPU_MAX_VCE_RINGS]; struct amdgpu_irq_src irq; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c index aeeeb72ebbc4..6b49d406daf6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c @@ -85,8 +85,6 @@ int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size) unsigned ucode_version, version_major, version_minor, binary_id; int i, r; - INIT_DELAYED_WORK(&adev->vce.idle_work, amdgpu_vce_idle_work_handler); - switch (adev->asic_type) { #ifdef CONFIG_DRM_AMDGPU_CIK case CHIP_BONAIRE: @@ -197,6 +195,9 @@ int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size) adev->vce.filp[i] = NULL; } + INIT_DELAYED_WORK(&adev->vce.idle_work, amdgpu_vce_idle_work_handler); + mutex_init(&adev->vce.idle_mutex); + return 0; } @@ -220,6 +221,7 @@ int amdgpu_vce_sw_fini(struct amdgpu_device *adev) amdgpu_ring_fini(&adev->vce.ring[1]); release_firmware(adev->vce.fw); + mutex_destroy(&adev->vce.idle_mutex); return 0; } @@ -315,19 +317,19 @@ static void amdgpu_vce_idle_work_handler(struct work_struct *work) } /** - * amdgpu_vce_note_usage - power up VCE + * amdgpu_vce_ring_begin_use - power up VCE * - * @adev: amdgpu_device pointer + * @ring: amdgpu ring * * Make sure VCE is powerd up when we want to use it */ -static void amdgpu_vce_note_usage(struct amdgpu_device *adev) +void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring) { - bool set_clocks = !cancel_delayed_work_sync(&adev->vce.idle_work); - - set_clocks &= schedule_delayed_work(&adev->vce.idle_work, - VCE_IDLE_TIMEOUT); + struct amdgpu_device *adev = ring->adev; + bool set_clocks; + mutex_lock(&adev->vce.idle_mutex); + set_clocks = !cancel_delayed_work_sync(&adev->vce.idle_work); if (set_clocks) { if (adev->pm.dpm_enabled) { amdgpu_dpm_enable_vce(adev, true); @@ -335,6 +337,19 @@ static void amdgpu_vce_note_usage(struct amdgpu_device *adev) amdgpu_asic_set_vce_clocks(adev, 53300, 40000); } } + mutex_unlock(&adev->vce.idle_mutex); +} + +/** + * amdgpu_vce_ring_end_use - power VCE down + * + * @ring: amdgpu ring + * + * Schedule work to power VCE down again + */ +void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring) +{ + schedule_delayed_work(&ring->adev->vce.idle_work, VCE_IDLE_TIMEOUT); } /** @@ -355,8 +370,6 @@ void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp) if (!handle || adev->vce.filp[i] != filp) continue; - amdgpu_vce_note_usage(adev); - r = amdgpu_vce_get_destroy_msg(ring, handle, false, NULL); if (r) DRM_ERROR("Error destroying VCE handle (%d)!\n", r); @@ -622,8 +635,6 @@ int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx) uint32_t *size = &tmp; int i, r = 0, idx = 0; - amdgpu_vce_note_usage(p->adev); - while (idx < ib->length_dw) { uint32_t len = amdgpu_get_ib_value(p, ib_idx, idx); uint32_t cmd = amdgpu_get_ib_value(p, ib_idx, idx + 1); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h index f40cf761c66f..fe84b80dbbed 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h @@ -40,5 +40,7 @@ void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq, unsigned flags); int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring); int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring); +void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring); +void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring); #endif diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c index 45d92aceb485..80a37a602181 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c @@ -594,6 +594,8 @@ static const struct amdgpu_ring_funcs vce_v2_0_ring_funcs = { .test_ib = amdgpu_vce_ring_test_ib, .insert_nop = amdgpu_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, + .begin_use = amdgpu_vce_ring_begin_use, + .end_use = amdgpu_vce_ring_end_use, }; static void vce_v2_0_set_ring_funcs(struct amdgpu_device *adev) diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c index 800c10bcb6cd..c271abffd8dd 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c @@ -767,6 +767,8 @@ static const struct amdgpu_ring_funcs vce_v3_0_ring_funcs = { .test_ib = amdgpu_vce_ring_test_ib, .insert_nop = amdgpu_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, + .begin_use = amdgpu_vce_ring_begin_use, + .end_use = amdgpu_vce_ring_end_use, }; static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev)