diff options
| -rw-r--r-- | drivers/gpu/host1x/drm/gr2d.c | 100 |
1 files changed, 49 insertions, 51 deletions
diff --git a/drivers/gpu/host1x/drm/gr2d.c b/drivers/gpu/host1x/drm/gr2d.c index 8d9a10f52d81..e91b184ced30 100644 --- a/drivers/gpu/host1x/drm/gr2d.c +++ b/drivers/gpu/host1x/drm/gr2d.c @@ -25,11 +25,14 @@ #include "host1x_client.h" #include "syncpt.h" +#define GR2D_NUM_REGS 0x4d + struct gr2d { struct host1x_client client; - struct clk *clk; struct host1x_channel *channel; - unsigned long *addr_regs; + struct clk *clk; + + DECLARE_BITMAP(addr_regs, GR2D_NUM_REGS); }; static inline struct gr2d *to_gr2d(struct host1x_client *client) @@ -37,8 +40,6 @@ static inline struct gr2d *to_gr2d(struct host1x_client *client) return container_of(client, struct gr2d, client); } -static int gr2d_is_addr_reg(struct device *dev, u32 class, u32 reg); - static int gr2d_client_init(struct host1x_client *client, struct drm_device *drm) { @@ -56,7 +57,6 @@ static int gr2d_open_channel(struct host1x_client *client, struct gr2d *gr2d = to_gr2d(client); context->channel = host1x_channel_get(gr2d->channel); - if (!context->channel) return -ENOMEM; @@ -87,11 +87,35 @@ static struct host1x_bo *host1x_bo_lookup(struct drm_device *drm, return &bo->base; } +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 int gr2d_submit(struct tegra_drm_context *context, struct drm_tegra_submit *args, struct drm_device *drm, struct drm_file *file) { - struct host1x_job *job; unsigned int num_cmdbufs = args->num_cmdbufs; unsigned int num_relocs = args->num_relocs; unsigned int num_waitchks = args->num_waitchks; @@ -102,6 +126,7 @@ static int gr2d_submit(struct tegra_drm_context *context, struct drm_tegra_waitchk __user *waitchks = (void * __user)(uintptr_t)args->waitchks; struct drm_tegra_syncpt syncpt; + struct host1x_job *job; int err; /* We don't yet support other than one syncpt_incr struct per submit */ @@ -205,54 +230,25 @@ static struct host1x_client_ops gr2d_client_ops = { .submit = gr2d_submit, }; -static void gr2d_init_addr_reg_map(struct device *dev, struct gr2d *gr2d) -{ - const u32 gr2d_addr_regs[] = {0x1a, 0x1b, 0x26, 0x2b, 0x2c, 0x2d, 0x31, - 0x32, 0x48, 0x49, 0x4a, 0x4b, 0x4c}; - unsigned long *bitmap; - int i; - - bitmap = devm_kzalloc(dev, DIV_ROUND_UP(256, BITS_PER_BYTE), - GFP_KERNEL); - - for (i = 0; i < ARRAY_SIZE(gr2d_addr_regs); ++i) { - u32 reg = gr2d_addr_regs[i]; - bitmap[BIT_WORD(reg)] |= BIT_MASK(reg); - } - - gr2d->addr_regs = bitmap; -} - -static int gr2d_is_addr_reg(struct device *dev, u32 class, u32 reg) -{ - struct gr2d *gr2d = dev_get_drvdata(dev); - - switch (class) { - case HOST1X_CLASS_HOST1X: - return reg == 0x2b; - case HOST1X_CLASS_GR2D: - case HOST1X_CLASS_GR2D_SB: - reg &= 0xff; - if (gr2d->addr_regs[BIT_WORD(reg)] & BIT_MASK(reg)) - return 1; - default: - return 0; - } -} - static const struct of_device_id gr2d_match[] = { { .compatible = "nvidia,tegra30-gr2d" }, { .compatible = "nvidia,tegra20-gr2d" }, { }, }; +static const u32 gr2d_addr_regs[] = { + 0x1a, 0x1b, 0x26, 0x2b, 0x2c, 0x2d, 0x31, 0x32, + 0x48, 0x49, 0x4a, 0x4b, 0x4c +}; + static int gr2d_probe(struct platform_device *pdev) { + struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct device *dev = &pdev->dev; - struct tegra_drm *tegra = host1x_get_drm_data(dev->parent); - int err; - struct gr2d *gr2d = NULL; struct host1x_syncpt **syncpts; + struct gr2d *gr2d; + unsigned int i; + int err; gr2d = devm_kzalloc(dev, sizeof(*gr2d), GFP_KERNEL); if (!gr2d) @@ -296,14 +292,16 @@ static int gr2d_probe(struct platform_device *pdev) return err; } - gr2d_init_addr_reg_map(dev, gr2d); + /* 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 __exit gr2d_remove(struct platform_device *pdev) +static int gr2d_remove(struct platform_device *pdev) { struct tegra_drm *tegra = host1x_get_drm_data(pdev->dev.parent); struct gr2d *gr2d = platform_get_drvdata(pdev); @@ -312,7 +310,8 @@ static int __exit gr2d_remove(struct platform_device *pdev) err = host1x_unregister_client(tegra, &gr2d->client); if (err < 0) { - dev_err(&pdev->dev, "failed to unregister client: %d\n", err); + dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", + err); return err; } @@ -326,11 +325,10 @@ static int __exit gr2d_remove(struct platform_device *pdev) } struct platform_driver tegra_gr2d_driver = { - .probe = gr2d_probe, - .remove = __exit_p(gr2d_remove), .driver = { - .owner = THIS_MODULE, .name = "gr2d", .of_match_table = gr2d_match, - } + }, + .probe = gr2d_probe, + .remove = gr2d_remove, }; |