From: Dillon Varone <[email protected]> Add function to handle deep copying dml2 context.
Reviewed-by: Chaitanya Dhere <[email protected]> Acked-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Dillon Varone <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 15 +++------- .../drm/amd/display/dc/dml2/dml2_wrapper.c | 29 ++++++++++++++++++- .../drm/amd/display/dc/dml2/dml2_wrapper.h | 4 +++ 3 files changed, 36 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index eab713c0da0d..102d00a9a24f 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2258,23 +2258,16 @@ struct dc_state *dc_copy_state(struct dc_state *src_ctx) { int i, j; struct dc_state *new_ctx = kvmalloc(sizeof(struct dc_state), GFP_KERNEL); -#ifdef CONFIG_DRM_AMD_DC_FP - struct dml2_context *dml2 = NULL; -#endif if (!new_ctx) return NULL; memcpy(new_ctx, src_ctx, sizeof(struct dc_state)); #ifdef CONFIG_DRM_AMD_DC_FP - if (new_ctx->bw_ctx.dml2) { - dml2 = kzalloc(sizeof(struct dml2_context), GFP_KERNEL); - if (!dml2) - return NULL; - - memcpy(dml2, src_ctx->bw_ctx.dml2, sizeof(struct dml2_context)); - new_ctx->bw_ctx.dml2 = dml2; - } + if (new_ctx->bw_ctx.dml2 && !dml2_create_copy(&new_ctx->bw_ctx.dml2, src_ctx->bw_ctx.dml2)) { + dc_release_state(new_ctx); + return NULL; + } #endif for (i = 0; i < MAX_PIPES; i++) { diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c index 8f231418870f..9d354fde6908 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.c @@ -691,10 +691,15 @@ bool dml2_validate(const struct dc *in_dc, struct dc_state *context, bool fast_v return out; } +static inline struct dml2_context *dml2_allocate_memory(void) +{ + return (struct dml2_context *) kzalloc(sizeof(struct dml2_context), GFP_KERNEL); +} + bool dml2_create(const struct dc *in_dc, const struct dml2_configuration_options *config, struct dml2_context **dml2) { // Allocate Mode Lib Ctx - *dml2 = (struct dml2_context *) kzalloc(sizeof(struct dml2_context), GFP_KERNEL); + *dml2 = dml2_allocate_memory(); if (!(*dml2)) return false; @@ -745,3 +750,25 @@ void dml2_extract_dram_and_fclk_change_support(struct dml2_context *dml2, *fclk_change_support = (unsigned int) dml2->v20.dml_core_ctx.ms.support.FCLKChangeSupport[0]; *dram_clk_change_support = (unsigned int) dml2->v20.dml_core_ctx.ms.support.DRAMClockChangeSupport[0]; } + +void dml2_copy(struct dml2_context *dst_dml2, + struct dml2_context *src_dml2) +{ + /* copy Mode Lib Ctx */ + memcpy(dst_dml2, src_dml2, sizeof(struct dml2_context)); +} + +bool dml2_create_copy(struct dml2_context **dst_dml2, + struct dml2_context *src_dml2) +{ + /* Allocate Mode Lib Ctx */ + *dst_dml2 = dml2_allocate_memory(); + + if (!(*dst_dml2)) + return false; + + /* copy Mode Lib Ctx */ + dml2_copy(*dst_dml2, src_dml2); + + return true; +} diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h index fe15baa4bf09..0de6886969c6 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h @@ -191,6 +191,10 @@ bool dml2_create(const struct dc *in_dc, struct dml2_context **dml2); void dml2_destroy(struct dml2_context *dml2); +void dml2_copy(struct dml2_context *dst_dml2, + struct dml2_context *src_dml2); +bool dml2_create_copy(struct dml2_context **dst_dml2, + struct dml2_context *src_dml2); /* * dml2_validate - Determines if a display configuration is supported or not. -- 2.42.0
