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gpu: nvgpu: add platform support for Static PG

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- Add support for taking static PG config values
  from DT nodes
- Check those values against valid set of values
  for GPC, TPC and FBP
- Store valid values in g->gpc_pg_mask, g->fbp_pg_mask
  and g->tpc_pg_mask[] array.

Bug 200768322
JIRA NVGPU-6433

Change-Id: Ifc87e7d369034b1daa13866bc16a970602514bf6
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2594802
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Divya
2021-09-09 07:22:51 +00:00
committed by mobile promotions
parent 9984b59a00
commit ae2d561c48
12 changed files with 364 additions and 113 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/gpu/nvgpu/os/linux/platform_gk20a.h
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@@ -81,6 +81,7 @@ struct gk20a_platform {
/* controls gc off feature for pci gpu */
bool can_pci_gc_off;
#ifdef CONFIG_NVGPU_STATIC_POWERGATE
/* Should be populated at probe. */
bool can_tpc_pg;
@@ -89,7 +90,7 @@ struct gk20a_platform {
/* Should be populated at probe. */
bool can_gpc_pg;
#endif
/* Should be populated at probe. */
bool can_elpg_init;
@@ -118,12 +119,14 @@ struct gk20a_platform {
/* Reset control for device */
struct reset_control *reset_control;
#endif
/* valid TPC-MASK */
u32 valid_tpc_mask[MAX_TPC_PG_CONFIGS];
/* Valid GPC and FBP mask */
u32 valid_gpc_fbp_fs_mask[MAX_GPC_FBP_FS_CONFIGS];
#ifdef CONFIG_NVGPU_STATIC_POWERGATE
/* valid TPC-PG MASK */
u32 valid_tpc_pg_mask[MAX_PG_TPC_CONFIGS];
/* Valid GPC-PG and FBP-PG mask */
u32 valid_gpc_fbp_pg_mask[MAX_PG_GPC_FBP_CONFIGS];
#endif
/* Delay before rail gated */
int railgate_delay_init;
@@ -244,15 +247,16 @@ struct gk20a_platform {
/* Pre callback is called before frequency change */
void (*prescale)(struct device *dev);
#ifdef CONFIG_NVGPU_STATIC_POWERGATE
/* Set TPC_PG_MASK during probe */
void (*set_tpc_pg_mask)(struct device *dev, u32 tpc_pg_mask);
int (*set_tpc_pg_mask)(struct device *dev, u32 dt_tpc_pg_mask);
/* Set GPC_MASK during probe */
void (*set_gpc_mask)(struct device *dev, u32 gpc_mask);
/* Set FBP_MASK during probe */
void (*set_fbp_mask)(struct device *dev, u32 fbp_mask);
/* Set GPC_PG_MASK during probe */
int (*set_gpc_pg_mask)(struct device *dev, u32 dt_gpc_pg_mask);
/* Set FBP_PG_MASK during probe */
int (*set_fbp_pg_mask)(struct device *dev, u32 dt_fbp_pg_mask);
#endif
/* Devfreq governor name. If scaling is enabled, we request
* this governor to be used in scaling */
const char *devfreq_governor;