From: Thierry Reding <treding@nvidia.com>
Date: Wed, 16 May 2018 17:06:36 +0200
Subject: drm/tegra: gr2d: Track interface version
Git-commit: 840fd213fca23b185f71b45a5b563e4e9b6d1759
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/tegra/gr2d.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/tegra/gr2d.c
+++ b/drivers/gpu/drm/tegra/gr2d.c
@@ -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
.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_de
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_de
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);