diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-25 11:48:26 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-25 11:48:26 -0800 |
commit | 4971f090aa7f6ce5daa094ce4334f6618f93a7eb (patch) | |
tree | 45d75782b7dedbec76a3ab82d2769f7707668071 /drivers/gpu/drm/msm/msm_gpummu.c | |
parent | c76cd634eb5bfd497617ea224a54a03b545c8c4d (diff) | |
parent | 2a3c83f5fe0770d13bbb71b23674886ff4111f44 (diff) | |
download | linux-4971f090aa7f6ce5daa094ce4334f6618f93a7eb.tar.gz |
Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"Core:
- shared fencing staging removal
- drop transactional atomic helpers and move helpers to new location
- DP/MST atomic cleanup
- Leasing cleanups and drop EXPORT_SYMBOL
- Convert drivers to atomic helpers and generic fbdev.
- removed deprecated obj_ref/unref in favour of get/put
- Improve dumb callback documentation
- MODESET_LOCK_BEGIN/END helpers
panels:
- CDTech panels, Banana Pi Panel, DLC1010GIG,
- Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
- Himax HX8357D, simulated RTSM AEMv8.
- GPD Win2 panel
- AUO G101EVN010
vgem:
- render node support
ttm:
- move global init out of drivers
- fix LRU handling for ghost objects
- Support for simultaneous submissions to multiple engines
scheduler:
- timeout/fault handling changes to help GPU recovery
- helpers for hw with preemption support
i915:
- Scaler/Watermark fixes
- DP MST + powerwell fixes
- PSR fixes
- Break long get/put shmemfs pages
- Icelake fixes
- Icelake DSI video mode enablement
- Engine workaround improvements
amdgpu:
- freesync support
- GPU reset enabled on CI, VI, SOC15 dGPUs
- ABM support in DC
- KFD support for vega12/polaris12
- SDMA paging queue on vega
- More amdkfd code sharing
- DCC scanout on GFX9
- DC kerneldoc
- Updated SMU firmware for GFX8 chips
- XGMI PSP + hive reset support
- GPU reset
- DC trace support
- Powerplay updates for newer Polaris
- Cursor plane update fast path
- kfd dma-buf support
virtio-gpu:
- add EDID support
vmwgfx:
- pageflip with damage support
nouveau:
- Initial Turing TU104/TU106 modesetting support
msm:
- a2xx gpu support for apq8060 and imx5
- a2xx gpummu support
- mdp4 display support for apq8060
- DPU fixes and cleanups
- enhanced profiling support
- debug object naming interface
- get_iova/page pinning decoupling
tegra:
- Tegra194 host1x, VIC and display support enabled
- Audio over HDMI for Tegra186 and Tegra194
exynos:
- DMA/IOMMU refactoring
- plane alpha + blend mode support
- Color format fixes for mixer driver
rcar-du:
- R8A7744 and R8A77470 support
- R8A77965 LVDS support
imx:
- fbdev emulation fix
- multi-tiled scalling fixes
- SPDX identifiers
rockchip
- dw_hdmi support
- dw-mipi-dsi + dual dsi support
- mailbox read size fix
qxl:
- fix cursor pinning
vc4:
- YUV support (scaling + cursor)
v3d:
- enable TFU (Texture Formatting Unit)
mali-dp:
- add support for linear tiled formats
sun4i:
- Display Engine 3 support
- H6 DE3 mixer 0 support
- H6 display engine support
- dw-hdmi support
- H6 HDMI phy support
- implicit fence waiting
- BGRX8888 support
meson:
- Overlay plane support
- implicit fence waiting
- HDMI 1.4 4k modes
bridge:
- i2c fixes for sii902x"
* tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits)
drm/amd/display: Add fast path for cursor plane updates
drm/amdgpu: Enable GPU recovery by default for CI
drm/amd/display: Fix duplicating scaling/underscan connector state
drm/amd/display: Fix unintialized max_bpc state values
Revert "drm/amd/display: Set RMX_ASPECT as default"
drm/amdgpu: Fix stub function name
drm/msm/dpu: Fix clock issue after bind failure
drm/msm/dpu: Clean up dpu_media_info.h static inline functions
drm/msm/dpu: Further cleanups for static inline functions
drm/msm/dpu: Cleanup the debugfs functions
drm/msm/dpu: Remove dpu_irq and unused functions
drm/msm: Make irq_postinstall optional
drm/msm/dpu: Cleanup callers of dpu_hw_blk_init
drm/msm/dpu: Remove unused functions
drm/msm/dpu: Remove dpu_crtc_is_enabled()
drm/msm/dpu: Remove dpu_crtc_get_mixer_height
drm/msm/dpu: Remove dpu_dbg
drm/msm: dpu: Remove crtc_lock
drm/msm: dpu: Remove vblank_requested flag from dpu_crtc
drm/msm: dpu: Separate crtc assignment from vblank enable
...
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpummu.c')
-rw-r--r-- | drivers/gpu/drm/msm/msm_gpummu.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpummu.c b/drivers/gpu/drm/msm/msm_gpummu.c new file mode 100644 index 000000000000..27312b553dd8 --- /dev/null +++ b/drivers/gpu/drm/msm/msm_gpummu.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018 The Linux Foundation. All rights reserved. */ + +#include "msm_drv.h" +#include "msm_mmu.h" +#include "adreno/adreno_gpu.h" +#include "adreno/a2xx.xml.h" + +struct msm_gpummu { + struct msm_mmu base; + struct msm_gpu *gpu; + dma_addr_t pt_base; + uint32_t *table; +}; +#define to_msm_gpummu(x) container_of(x, struct msm_gpummu, base) + +#define GPUMMU_VA_START SZ_16M +#define GPUMMU_VA_RANGE (0xfff * SZ_64K) +#define GPUMMU_PAGE_SIZE SZ_4K +#define TABLE_SIZE (sizeof(uint32_t) * GPUMMU_VA_RANGE / GPUMMU_PAGE_SIZE) + +static int msm_gpummu_attach(struct msm_mmu *mmu, const char * const *names, + int cnt) +{ + return 0; +} + +static void msm_gpummu_detach(struct msm_mmu *mmu, const char * const *names, + int cnt) +{ +} + +static int msm_gpummu_map(struct msm_mmu *mmu, uint64_t iova, + struct sg_table *sgt, unsigned len, int prot) +{ + struct msm_gpummu *gpummu = to_msm_gpummu(mmu); + unsigned idx = (iova - GPUMMU_VA_START) / GPUMMU_PAGE_SIZE; + struct scatterlist *sg; + unsigned prot_bits = 0; + unsigned i, j; + + if (prot & IOMMU_WRITE) + prot_bits |= 1; + if (prot & IOMMU_READ) + prot_bits |= 2; + + for_each_sg(sgt->sgl, sg, sgt->nents, i) { + dma_addr_t addr = sg->dma_address; + for (j = 0; j < sg->length / GPUMMU_PAGE_SIZE; j++, idx++) { + gpummu->table[idx] = addr | prot_bits; + addr += GPUMMU_PAGE_SIZE; + } + } + + /* we can improve by deferring flush for multiple map() */ + gpu_write(gpummu->gpu, REG_A2XX_MH_MMU_INVALIDATE, + A2XX_MH_MMU_INVALIDATE_INVALIDATE_ALL | + A2XX_MH_MMU_INVALIDATE_INVALIDATE_TC); + return 0; +} + +static int msm_gpummu_unmap(struct msm_mmu *mmu, uint64_t iova, unsigned len) +{ + struct msm_gpummu *gpummu = to_msm_gpummu(mmu); + unsigned idx = (iova - GPUMMU_VA_START) / GPUMMU_PAGE_SIZE; + unsigned i; + + for (i = 0; i < len / GPUMMU_PAGE_SIZE; i++, idx++) + gpummu->table[idx] = 0; + + gpu_write(gpummu->gpu, REG_A2XX_MH_MMU_INVALIDATE, + A2XX_MH_MMU_INVALIDATE_INVALIDATE_ALL | + A2XX_MH_MMU_INVALIDATE_INVALIDATE_TC); + return 0; +} + +static void msm_gpummu_destroy(struct msm_mmu *mmu) +{ + struct msm_gpummu *gpummu = to_msm_gpummu(mmu); + + dma_free_attrs(mmu->dev, TABLE_SIZE, gpummu->table, gpummu->pt_base, + DMA_ATTR_FORCE_CONTIGUOUS); + + kfree(gpummu); +} + +static const struct msm_mmu_funcs funcs = { + .attach = msm_gpummu_attach, + .detach = msm_gpummu_detach, + .map = msm_gpummu_map, + .unmap = msm_gpummu_unmap, + .destroy = msm_gpummu_destroy, +}; + +struct msm_mmu *msm_gpummu_new(struct device *dev, struct msm_gpu *gpu) +{ + struct msm_gpummu *gpummu; + + gpummu = kzalloc(sizeof(*gpummu), GFP_KERNEL); + if (!gpummu) + return ERR_PTR(-ENOMEM); + + gpummu->table = dma_alloc_attrs(dev, TABLE_SIZE + 32, &gpummu->pt_base, + GFP_KERNEL | __GFP_ZERO, DMA_ATTR_FORCE_CONTIGUOUS); + if (!gpummu->table) { + kfree(gpummu); + return ERR_PTR(-ENOMEM); + } + + gpummu->gpu = gpu; + msm_mmu_init(&gpummu->base, dev, &funcs); + + return &gpummu->base; +} + +void msm_gpummu_params(struct msm_mmu *mmu, dma_addr_t *pt_base, + dma_addr_t *tran_error) +{ + dma_addr_t base = to_msm_gpummu(mmu)->pt_base; + + *pt_base = base; + *tran_error = base + TABLE_SIZE; /* 32-byte aligned */ +} |