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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 14:19:54 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 14:19:54 +0900 |
| commit | 049ffa8ab33a63b3bff672d1a0ee6a35ad253fe8 (patch) | |
| tree | 70f4c684818b1c9871fa800088427e40d260592e /drivers/gpu/drm/tegra/gr2d.c | |
| parent | c681427e5ca22925fcc1be76a2e260a11e0a8498 (diff) | |
| parent | 0846c728e20a0cd1e43fb75a3015f3b176a26466 (diff) | |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is a combo of -next and some -fixes that came in in the
intervening time.
Highlights:
New drivers:
ARM Armada driver for Marvell Armada 510 SOCs
Intel:
Broadwell initial support under a default off switch,
Stereo/3D HDMI mode support
Valleyview improvements
Displayport improvements
Haswell fixes
initial mipi dsi panel support
CRC support for debugging
build with CONFIG_FB=n
Radeon:
enable DPM on a number of GPUs by default
secondary GPU powerdown support
enable HDMI audio by default
Hawaii support
Nouveau:
dynamic pm code infrastructure reworked, does nothing major yet
GK208 modesetting support
MSI fixes, on by default again
PMPEG improvements
pageflipping fixes
GMA500:
minnowboard SDVO support
VMware:
misc fixes
MSM:
prime, plane and rendernodes support
Tegra:
rearchitected to put the drm driver into the drm subsystem.
HDMI and gr2d support for tegra 114 SoC
QXL:
oops fix, and multi-head fixes
DRM core:
sysfs lifetime fixes
client capability ioctl
further cleanups to device midlayer
more vblank timestamp fixes"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (789 commits)
drm/nouveau: do not map evicted vram buffers in nouveau_bo_vma_add
drm/nvc0-/gr: shift wrapping bug in nvc0_grctx_generate_r406800
drm/nouveau/pwr: fix missing mutex unlock in a failure path
drm/nv40/therm: fix slowing down fan when pstate undefined
drm/nv11-: synchronise flips to vblank, unless async flip requested
drm/nvc0-: remove nasty fifo swmthd hack for flip completion method
drm/nv10-: we no longer need to create nvsw object on user channels
drm/nouveau: always queue flips relative to kernel channel activity
drm/nouveau: there is no need to reserve/fence the new fb when flipping
drm/nouveau: when bailing out of a pushbuf ioctl, do not remove previous fence
drm/nouveau: allow nouveau_fence_ref() to be a noop
drm/nvc8/mc: msi rearm is via the nvc0 method
drm/ttm: Fix vma page_prot bit manipulation
drm/vmwgfx: Fix a couple of compile / sparse warnings and errors
drm/vmwgfx: Resource evict fixes
drm/edid: compare actual vrefresh for all modes for quirks
drm: shmob_drm: Convert to clk_prepare/unprepare
drm/nouveau: fix 32-bit build
drm/i915/opregion: fix build error on CONFIG_ACPI=n
Revert "drm/radeon/audio: don't set speaker allocation on DCE4+"
...
Diffstat (limited to 'drivers/gpu/drm/tegra/gr2d.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/gr2d.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/gr2d.c b/drivers/gpu/drm/tegra/gr2d.c new file mode 100644 index 00000000000..7ec4259ffde --- /dev/null +++ b/drivers/gpu/drm/tegra/gr2d.c @@ -0,0 +1,227 @@ +/* + * Copyright (c) 2012-2013, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/clk.h> + +#include "drm.h" +#include "gem.h" +#include "gr2d.h" + +struct gr2d { + struct tegra_drm_client client; + struct host1x_channel *channel; + struct clk *clk; + + DECLARE_BITMAP(addr_regs, GR2D_NUM_REGS); +}; + +static inline struct gr2d *to_gr2d(struct tegra_drm_client *client) +{ + return container_of(client, struct gr2d, client); +} + +static int gr2d_init(struct host1x_client *client) +{ + struct tegra_drm_client *drm = host1x_to_drm_client(client); + struct tegra_drm *tegra = dev_get_drvdata(client->parent); + unsigned long flags = HOST1X_SYNCPT_HAS_BASE; + struct gr2d *gr2d = to_gr2d(drm); + + gr2d->channel = host1x_channel_request(client->dev); + if (!gr2d->channel) + return -ENOMEM; + + client->syncpts[0] = host1x_syncpt_request(client->dev, flags); + if (!client->syncpts[0]) { + host1x_channel_free(gr2d->channel); + return -ENOMEM; + } + + return tegra_drm_register_client(tegra, drm); +} + +static int gr2d_exit(struct host1x_client *client) +{ + struct tegra_drm_client *drm = host1x_to_drm_client(client); + struct tegra_drm *tegra = dev_get_drvdata(client->parent); + struct gr2d *gr2d = to_gr2d(drm); + int err; + + err = tegra_drm_unregister_client(tegra, drm); + if (err < 0) + return err; + + host1x_syncpt_free(client->syncpts[0]); + host1x_channel_free(gr2d->channel); + + return 0; +} + +static const struct host1x_client_ops gr2d_client_ops = { + .init = gr2d_init, + .exit = gr2d_exit, +}; + +static int gr2d_open_channel(struct tegra_drm_client *client, + struct tegra_drm_context *context) +{ + struct gr2d *gr2d = to_gr2d(client); + + context->channel = host1x_channel_get(gr2d->channel); + if (!context->channel) + return -ENOMEM; + + return 0; +} + +static void gr2d_close_channel(struct tegra_drm_context *context) +{ + host1x_channel_put(context->channel); +} + +static int gr2d_is_addr_reg(struct device *dev, u32 class, u32 offset) +{ + struct gr2d *gr2d = dev_get_drvdata(dev); + + switch (class) { + case HOST1X_CLASS_HOST1X: + if (offset == 0x2b) + return 1; + + break; + + case HOST1X_CLASS_GR2D: + case HOST1X_CLASS_GR2D_SB: + if (offset >= GR2D_NUM_REGS) + break; + + if (test_bit(offset, gr2d->addr_regs)) + return 1; + + break; + } + + return 0; +} + +static const struct tegra_drm_client_ops gr2d_ops = { + .open_channel = gr2d_open_channel, + .close_channel = gr2d_close_channel, + .is_addr_reg = gr2d_is_addr_reg, + .submit = tegra_drm_submit, +}; + +static const struct of_device_id gr2d_match[] = { + { .compatible = "nvidia,tegra30-gr2d" }, + { .compatible = "nvidia,tegra20-gr2d" }, + { }, +}; + +static const u32 gr2d_addr_regs[] = { + GR2D_UA_BASE_ADDR, + GR2D_VA_BASE_ADDR, + GR2D_PAT_BASE_ADDR, + GR2D_DSTA_BASE_ADDR, + GR2D_DSTB_BASE_ADDR, + GR2D_DSTC_BASE_ADDR, + GR2D_SRCA_BASE_ADDR, + GR2D_SRCB_BASE_ADDR, + GR2D_SRC_BASE_ADDR_SB, + GR2D_DSTA_BASE_ADDR_SB, + GR2D_DSTB_BASE_ADDR_SB, + GR2D_UA_BASE_ADDR_SB, + GR2D_VA_BASE_ADDR_SB, +}; + +static int gr2d_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct host1x_syncpt **syncpts; + struct gr2d *gr2d; + unsigned int i; + int err; + + gr2d = devm_kzalloc(dev, sizeof(*gr2d), GFP_KERNEL); + if (!gr2d) + return -ENOMEM; + + syncpts = devm_kzalloc(dev, sizeof(*syncpts), GFP_KERNEL); + if (!syncpts) + return -ENOMEM; + + gr2d->clk = devm_clk_get(dev, NULL); + if (IS_ERR(gr2d->clk)) { + dev_err(dev, "cannot get clock\n"); + return PTR_ERR(gr2d->clk); + } + + err = clk_prepare_enable(gr2d->clk); + if (err) { + dev_err(dev, "cannot turn on clock\n"); + return err; + } + + INIT_LIST_HEAD(&gr2d->client.base.list); + gr2d->client.base.ops = &gr2d_client_ops; + gr2d->client.base.dev = dev; + gr2d->client.base.class = HOST1X_CLASS_GR2D; + gr2d->client.base.syncpts = syncpts; + gr2d->client.base.num_syncpts = 1; + + INIT_LIST_HEAD(&gr2d->client.list); + gr2d->client.ops = &gr2d_ops; + + err = host1x_client_register(&gr2d->client.base); + if (err < 0) { + dev_err(dev, "failed to register host1x client: %d\n", err); + clk_disable_unprepare(gr2d->clk); + return err; + } + + /* initialize address register map */ + for (i = 0; i < ARRAY_SIZE(gr2d_addr_regs); i++) + set_bit(gr2d_addr_regs[i], gr2d->addr_regs); + + platform_set_drvdata(pdev, gr2d); + + return 0; +} + +static int gr2d_remove(struct platform_device *pdev) +{ + struct gr2d *gr2d = platform_get_drvdata(pdev); + int err; + + err = host1x_client_unregister(&gr2d->client.base); + if (err < 0) { + dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", + err); + return err; + } + + clk_disable_unprepare(gr2d->clk); + + return 0; +} + +struct platform_driver tegra_gr2d_driver = { + .driver = { + .name = "tegra-gr2d", + .of_match_table = gr2d_match, + }, + .probe = gr2d_probe, + .remove = gr2d_remove, +}; |