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| author | Dave Airlie <airlied@redhat.com> | 2020-09-23 09:49:48 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-09-23 09:52:24 +1000 |
| commit | 6ea6be77086f23d4b346c9946dae24593befda2e (patch) | |
| tree | dc3926a543ed2b8270aa111d97ee603970560eda /drivers/gpu/drm/panfrost/panfrost_gpu.c | |
| parent | fc88fef916e8971eefeacc62241b7408b7e7939d (diff) | |
| parent | 089d83418914abd4d908db117d9a3eca7f51a68c (diff) | |
| download | linux-6ea6be77086f23d4b346c9946dae24593befda2e.tar.gz linux-6ea6be77086f23d4b346c9946dae24593befda2e.tar.bz2 linux-6ea6be77086f23d4b346c9946dae24593befda2e.zip | |
Merge tag 'drm-misc-next-2020-09-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.10:
UAPI Changes:
Cross-subsystem Changes:
- virtio: Merged a PR for patches that will affect drm/virtio
Core Changes:
- dev: More devm_drm convertions and removal of drm_dev_init
- atomic: Split out drm_atomic_helper_calc_timestamping_constants of
drm_atomic_helper_update_legacy_modeset_state
- ttm: More rework
Driver Changes:
- i915: selftests improvements
- panfrost: support for Amlogic SoC
- vc4: one fix
- tree-wide: conversions to devm_drm_dev_alloc,
- ast: simplifications of the atomic modesetting code
- panfrost: multiple fixes
- vc4: multiple fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200921152956.2gxnsdgxmwhvjyut@gilmour.lan
Diffstat (limited to 'drivers/gpu/drm/panfrost/panfrost_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gpu.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index e0f190e43813..e1b2a3376624 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -76,6 +76,17 @@ int panfrost_gpu_soft_reset(struct panfrost_device *pfdev) return 0; } +void panfrost_gpu_amlogic_quirk(struct panfrost_device *pfdev) +{ + /* + * The Amlogic integrated Mali-T820, Mali-G31 & Mali-G52 needs + * these undocumented bits in GPU_PWR_OVERRIDE1 to be set in order + * to operate correctly. + */ + gpu_write(pfdev, GPU_PWR_KEY, GPU_PWR_KEY_UNLOCK); + gpu_write(pfdev, GPU_PWR_OVERRIDE1, 0xfff | (0x20 << 16)); +} + static void panfrost_gpu_init_quirks(struct panfrost_device *pfdev) { u32 quirks = 0; @@ -136,6 +147,10 @@ static void panfrost_gpu_init_quirks(struct panfrost_device *pfdev) if (quirks) gpu_write(pfdev, GPU_JM_CONFIG, quirks); + + /* Here goes platform specific quirks */ + if (pfdev->comp->vendor_quirk) + pfdev->comp->vendor_quirk(pfdev); } #define MAX_HW_REVS 6 @@ -305,6 +320,8 @@ void panfrost_gpu_power_on(struct panfrost_device *pfdev) int ret; u32 val; + panfrost_gpu_init_quirks(pfdev); + /* Just turn on everything for now */ gpu_write(pfdev, L2_PWRON_LO, pfdev->features.l2_present); ret = readl_relaxed_poll_timeout(pfdev->iomem + L2_READY_LO, @@ -344,6 +361,7 @@ int panfrost_gpu_init(struct panfrost_device *pfdev) dma_set_mask_and_coherent(pfdev->dev, DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features))); + dma_set_max_seg_size(pfdev->dev, UINT_MAX); irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu"); if (irq <= 0) @@ -356,7 +374,6 @@ int panfrost_gpu_init(struct panfrost_device *pfdev) return err; } - panfrost_gpu_init_quirks(pfdev); panfrost_gpu_power_on(pfdev); return 0; |