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gpu: nvgpu: Move fuse override DT handling

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Move fuse override DT handling to Linux code. All the chip specific
fuse override functions did the same thing, so delete the HAL and
call the same function to read the DT overrides on all chips.

Also remove the fuse override functionality from dGPU. There are no
DT entries for PCIe devices, so it would've failed anyway.

JIRA NVGPU-259

Change-Id: Iba64a5d53bf4eb94198c0408a462620efc2ddde4
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1593687
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Terje Bergstrom
2017-11-07 10:25:07 -08:00
committed by mobile promotions
parent 39527d5885
commit 1dad4adbd2
11 changed files with 46 additions and 97 deletions
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46
drivers/gpu/nvgpu/common/linux/module.c
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@@ -25,6 +25,8 @@
#include <linux/reset.h>
#include <linux/platform/tegra/common.h>
#include <uapi/linux/nvgpu.h>
#include <dt-bindings/soc/gm20b-fuse.h>
#include <dt-bindings/soc/gp10b-fuse.h>
#include <nvgpu/dma.h>
#include <nvgpu/kmem.h>
@@ -994,6 +996,48 @@ static inline void set_gk20a(struct platform_device *pdev, struct gk20a *gk20a)
gk20a_get_platform(&pdev->dev)->g = gk20a;
}
static int nvgpu_read_fuse_overrides(struct gk20a *g)
{
struct device_node *np = dev_from_gk20a(g)->of_node;
u32 *fuses;
int count, i;
if (!np) /* may be pcie device */
return 0;
count = of_property_count_elems_of_size(np, "fuse-overrides", 8);
if (count <= 0)
return count;
fuses = nvgpu_kmalloc(g, sizeof(u32) * count * 2);
if (!fuses)
return -ENOMEM;
of_property_read_u32_array(np, "fuse-overrides", fuses, count * 2);
for (i = 0; i < count; i++) {
u32 fuse, value;
fuse = fuses[2 * i];
value = fuses[2 * i + 1];
switch (fuse) {
case GM20B_FUSE_OPT_TPC_DISABLE:
g->tpc_fs_mask_user = ~value;
break;
#ifdef CONFIG_ARCH_TEGRA_18x_SOC
case GP10B_FUSE_OPT_ECC_EN:
g->gr.t18x.fecs_feature_override_ecc_val = value;
break;
#endif
default:
nvgpu_err(g, "ignore unknown fuse override %08x", fuse);
break;
}
}
nvgpu_kfree(g, fuses);
return 0;
}
static int gk20a_probe(struct platform_device *dev)
{
struct nvgpu_os_linux *l;
@@ -1077,6 +1121,8 @@ static int gk20a_probe(struct platform_device *dev)
if (err)
return err;
err = nvgpu_read_fuse_overrides(gk20a);
#ifdef CONFIG_RESET_CONTROLLER
platform->reset_control = devm_reset_control_get(&dev->dev, NULL);
if (IS_ERR(platform->reset_control))