nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-25 02:52:51 +03:00
Code Issues Packages Projects Releases Wiki Activity

Revert "gpu: nvgpu: cache gpu clk rate"

Browse Source 
This reverts commit e9a6d179a4 ("gpu: nvgpu: cache gpu clk rate")

 - Real clock rate doesn't always equal clock rate requested by caller
 - call of clk_set_rate() and update of cached_rate are not atomic
 - Real root cause for Bug 2051688 is in bpmp and gboost design


Bug 2538692

Change-Id: I9248e0c69e2271ed2d0070587db59afa6f8160f2
Signed-off-by: Peng Liu <pengliu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109708
Reviewed-by: Automatic_Commit_Validation_User
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:
Peng Liu
2019-03-13 10:30:54 -07:00
committed by mobile promotions
parent 1374fba039
commit cc70f89bb4
5 changed files with 5 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/nvgpu/hal/clk/clk_gk20a.h
View File

@@ -96,9 +96,6 @@ struct clk_gk20a {
#if defined(CONFIG_COMMON_CLK)
struct clk *tegra_clk;
struct clk_hw hw;
/* scaling rate */
unsigned long cached_rate;
#endif
struct pll gpc_pll;
struct pll gpc_pll_last;