gpu: nvgpu: Remove gk20a support

Remove gk20a support. Leave only gk20a code which is reused by other
GPUs.

JIRA NVGPU-38

Change-Id: I3d5f2bc9f71cd9f161e64436561a5eadd5786a3b
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master/r/1507927
GVS: Gerrit_Virtual_Submit

2 files changed, 0 insertions, 154 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/module.c b/drivers/gpu/nvgpu/common/linux/module.c
index 30a2fcd9..bb7e260d 100644
--- a/drivers/gpu/nvgpu/common/linux/module.c
+++ b/drivers/gpu/nvgpu/common/linux/module.c
@@ -234,8 +234,6 @@ done:
 
 static struct of_device_id tegra_gk20a_of_match[] = {
 #ifdef CONFIG_TEGRA_GK20A
-        { .compatible = "nvidia,tegra124-gk20a",
-                .data = &gk20a_tegra_platform },
         { .compatible = "nvidia,tegra210-gm20b",
                 .data = &gm20b_tegra_platform },
 #ifdef CONFIG_ARCH_TEGRA_18x_SOC
@@ -254,25 +252,8 @@ static struct of_device_id tegra_gk20a_of_match[] = {
         { .compatible = "nvidia,tegra124-gk20a-vgpu",
                 .data = &vgpu_tegra_platform },
 #endif
-#else
-        { .compatible = "nvidia,tegra124-gk20a",
-                .data = &gk20a_generic_platform },
-        { .compatible = "nvidia,tegra210-gm20b",
-                .data = &gk20a_generic_platform },
-#ifdef CONFIG_ARCH_TEGRA_18x_SOC
-        { .compatible = TEGRA_18x_GPU_COMPAT_TEGRA,
-                .data = &gk20a_generic_platform },
 #endif
 
-#endif
-        { .compatible = "nvidia,generic-gk20a",
-                .data = &gk20a_generic_platform },
-        { .compatible = "nvidia,generic-gm20b",
-                .data = &gk20a_generic_platform },
-#ifdef CONFIG_ARCH_TEGRA_18x_SOC
-        { .compatible = "nvidia,generic-gp10b",
-                .data = &gk20a_generic_platform },
-#endif
         { },
 };
 
diff --git a/drivers/gpu/nvgpu/common/linux/platform_gk20a_tegra.c b/drivers/gpu/nvgpu/common/linux/platform_gk20a_tegra.c
index ec14c08e..fda3bc95 100644
--- a/drivers/gpu/nvgpu/common/linux/platform_gk20a_tegra.c
+++ b/drivers/gpu/nvgpu/common/linux/platform_gk20a_tegra.c
@@ -47,7 +47,6 @@
 #include <nvgpu/linux/dma.h>
 
 #include "gk20a/gk20a.h"
-#include "gk20a/hal_gk20a.h"
 #include "gk20a/platform_gk20a.h"
 #include "gk20a/gk20a_scale.h"
 #include "gm20b/clk_gm20b.h"
@@ -232,66 +231,6 @@ static unsigned long gk20a_tegra_get_emc_rate(struct gk20a *g,
 }
 
 /*
- * gk20a_tegra_postscale(profile, freq)
- *
- * This function sets emc frequency based on current gpu frequency
- */
-
-static void gk20a_tegra_postscale(struct device *dev,
-                                  unsigned long freq)
-{
-        struct gk20a_platform *platform = dev_get_drvdata(dev);
-        struct gk20a_scale_profile *profile = platform->g->scale_profile;
-        struct gk20a_emc_params *emc_params = profile->private_data;
-        struct gk20a *g = get_gk20a(dev);
-        struct clk *emc_clk = platform->clk[2];
-        enum tegra_chipid chip_id = tegra_get_chip_id();
-        unsigned long emc_target;
-        unsigned long emc_freq_lower, emc_freq_upper, emc_freq_rounded;
-
-        emc_target = gk20a_tegra_get_emc_rate(g, emc_params);
-
-        switch (chip_id) {
-        case TEGRA124:
-        case TEGRA132:
-                /* T124 and T132 don't apply any rounding. The resulting
-                 * emc frequency gets implicitly rounded up after issuing
-                 * the clock_set_request.
-                 * So explicitly round up the emc target here to achieve
-                 * the same outcome. */
-                emc_freq_rounded =
-                        tegra_emc_round_rate_updown(emc_target, true);
-                break;
-
-        case TEGRA210:
-                emc_freq_lower = (unsigned long)
-                        tegra_emc_round_rate_updown(emc_target, false);
-                emc_freq_upper = (unsigned long)
-                        tegra_emc_round_rate_updown(emc_target, true);
-
-                /* round to the nearest frequency step */
-                if (emc_target < (emc_freq_lower + emc_freq_upper) / 2)
-                        emc_freq_rounded = emc_freq_lower;
-                else
-                        emc_freq_rounded = emc_freq_upper;
-                break;
-
-        default:
-                /* a proper rounding function needs to be implemented
-                 * for emc in t18x */
-                emc_freq_rounded = clk_round_rate(emc_clk, emc_target);
-                break;
-        }
-
-        /* only change the emc clock if new rounded frequency is different
-         * from previously set emc rate */
-        if (emc_freq_rounded != emc_params->freq_last_set) {
-                clk_set_rate(emc_clk, emc_freq_rounded);
-                emc_params->freq_last_set = emc_freq_rounded;
-        }
-}
-
-/*
  * gk20a_tegra_prescale(profile, freq)
  *
  * This function informs EDP about changed constraints.
@@ -619,30 +558,6 @@ err_get_clock:
         return ret;
 }
 
-static int gk20a_tegra_reset_assert(struct device *dev)
-{
-        struct gk20a_platform *platform = gk20a_get_platform(dev);
-
-        if (!platform->clk_reset)
-                platform->clk_reset = platform->clk[0];
-
-        tegra_periph_reset_assert(platform->clk_reset);
-
-        return 0;
-}
-
-static int gk20a_tegra_reset_deassert(struct device *dev)
-{
-        struct gk20a_platform *platform = gk20a_get_platform(dev);
-
-        if (!platform->clk_reset)
-                return -EINVAL;
-
-        tegra_periph_reset_deassert(platform->clk_reset);
-
-        return 0;
-}
-
 #if defined(CONFIG_RESET_CONTROLLER) && defined(CONFIG_COMMON_CLK)
 static int gm20b_tegra_reset_assert(struct device *dev)
 {
@@ -992,54 +907,6 @@ static int gk20a_clk_get_freqs(struct device *dev,
 }
 #endif
 
-
-struct gk20a_platform gk20a_tegra_platform = {
-        .has_syncpoints = true,
-        .aggressive_sync_destroy_thresh = 64,
-
-        /* power management configuration */
-        .railgate_delay_init    = 500,
-        .can_railgate_init      = true,
-        .can_elpg_init          = true,
-        .enable_slcg            = true,
-        .enable_blcg            = true,
-        .enable_elcg            = true,
-        .enable_elpg            = true,
-        .enable_aelpg           = true,
-        .ptimer_src_freq        = 12000000,
-
-        .force_reset_in_do_idle = false,
-
-        .default_big_page_size  = SZ_128K,
-
-        .ch_wdt_timeout_ms = 7000,
-
-        .probe = gk20a_tegra_probe,
-        .late_probe = gk20a_tegra_late_probe,
-        .remove = gk20a_tegra_remove,
-
-        /* power management callbacks */
-        .suspend = gk20a_tegra_suspend,
-
-        .busy = gk20a_tegra_busy,
-        .idle = gk20a_tegra_idle,
-
-        .reset_assert = gk20a_tegra_reset_assert,
-        .reset_deassert = gk20a_tegra_reset_deassert,
-
-        /* frequency scaling configuration */
-        .prescale = gk20a_tegra_prescale,
-        .postscale = gk20a_tegra_postscale,
-        .devfreq_governor = "nvhost_podgov",
-        .qos_notify = gk20a_scale_qos_notify,
-
-        .dump_platform_dependencies = gk20a_tegra_debug_dump,
-
-        .soc_name = "tegra12x",
-
-        .unified_memory = true,
-};
-
 struct gk20a_platform gm20b_tegra_platform = {
         .has_syncpoints = true,
         .aggressive_sync_destroy_thresh = 64,
@@ -1097,8 +964,6 @@ struct gk20a_platform gm20b_tegra_platform = {
         .prescale = gk20a_tegra_prescale,
 #ifdef CONFIG_TEGRA_BWMGR
         .postscale = gm20b_tegra_postscale,
-#else
-        .postscale = gk20a_tegra_postscale,
 #endif
         .devfreq_governor = "nvhost_podgov",
         .qos_notify = gk20a_scale_qos_notify,