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| author |   Harry Wentland <harry.wentland@amd.com> | 2021-09-07 20:22:13 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-09-23 15:17:30 -0400 |
| commit | 1f2fcc8183e372b5d8f0e00d3e42e5d6a4a6a336 (patch) | |
| tree | 123e299fde0db78605a9cfac90595b5cec6c0fb4 /drivers/gpu/drm/amd/display/dc/inc/core_types.h | |
| parent | drm/amd/display: Fix rest of pass-by-value structs in DML (diff) | |
| download | linux-dev-1f2fcc8183e372b5d8f0e00d3e42e5d6a4a6a336.tar.xz linux-dev-1f2fcc8183e372b5d8f0e00d3e42e5d6a4a6a336.zip | |
drm/amd/display: Allocate structs needed by dcn_bw_calc_rq_dlg_ttu in pipe_ctx
[Why & How]
dcn_bw_calc_rq_dlg_ttu uses a stack frame great than 1024. To solve this
we could allocate the rq_param, dlg_sys_param, and input structs
dynamically. Since this function is inside a kernel_fpu_begin()/end()
call we want to avoid memory allocation. Instead it's much
safer to pre-allocate these on the pipe_ctx.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Fixes: 3fe617ccafd6 ("Enable '-Werror' by default for all kernel builds")
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: amd-gfx@lists.freedesktop.org
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Xinhui Pan <Xinhui.Pan@amd.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: llvm@lists.linux.dev
Acked-by: Christian König <christian.koenig@amd.com>
Build-tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/core_types.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/core_types.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h index ed254c2771f0..0473cd28e8d1 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h +++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h @@ -375,6 +375,9 @@ struct pipe_ctx { struct _vcs_dpi_display_ttu_regs_st ttu_regs; struct _vcs_dpi_display_rq_regs_st rq_regs; struct _vcs_dpi_display_pipe_dest_params_st pipe_dlg_param; + struct _vcs_dpi_display_rq_params_st dml_rq_param; + struct _vcs_dpi_display_dlg_sys_params_st dml_dlg_sys_param; + struct _vcs_dpi_display_e2e_pipe_params_st dml_input; int det_buffer_size_kb; bool unbounded_req; #endif |