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drm/tegra: gr2d: Track interface version

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Set the interface version implemented by the gr2d module. This allows
userspace to pass the correct command stream when programming the gr2d
module.

Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2018-05-16 17:06:36 +02:00
parent f3b3cfcc3f
commit 840fd213fc
1 changed files with 20 additions and 2 deletions
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22
drivers/gpu/drm/tegra/gr2d.c
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@ -8,17 +8,24 @@
#include <linux/clk.h>
#include <linux/iommu.h>
#include <linux/of_device.h>
#include "drm.h"
#include "gem.h"
#include "gr2d.h"
struct gr2d_soc {
unsigned int version;
};
struct gr2d {
struct iommu_group *group;
struct tegra_drm_client client;
struct host1x_channel *channel;
struct clk *clk;
const struct gr2d_soc *soc;
DECLARE_BITMAP(addr_regs, GR2D_NUM_REGS);
};
@ -150,9 +157,17 @@ static const struct tegra_drm_client_ops gr2d_ops = {
.submit = tegra_drm_submit,
};
static const struct gr2d_soc tegra20_gr2d_soc = {
.version = 0x20,
};
static const struct gr2d_soc tegra30_gr2d_soc = {
.version = 0x30,
};
static const struct of_device_id gr2d_match[] = {
{ .compatible = "nvidia,tegra30-gr2d" },
{ .compatible = "nvidia,tegra20-gr2d" },
{ .compatible = "nvidia,tegra30-gr2d", .data = &tegra20_gr2d_soc },
{ .compatible = "nvidia,tegra20-gr2d", .data = &tegra30_gr2d_soc },
{ },
};
MODULE_DEVICE_TABLE(of, gr2d_match);
@ -185,6 +200,8 @@ static int gr2d_probe(struct platform_device *pdev)
if (!gr2d)
return -ENOMEM;
gr2d->soc = of_device_get_match_data(dev);
syncpts = devm_kzalloc(dev, sizeof(*syncpts), GFP_KERNEL);
if (!syncpts)
return -ENOMEM;
@ -209,6 +226,7 @@ static int gr2d_probe(struct platform_device *pdev)
gr2d->client.base.num_syncpts = 1;
INIT_LIST_HEAD(&gr2d->client.list);
gr2d->client.version = gr2d->soc->version;
gr2d->client.ops = &gr2d_ops;
err = host1x_client_register(&gr2d->client.base);