From: Samuel Pitoiset Date: Mon, 13 Apr 2020 09:38:33 +0000 (+0200) Subject: radv: add radeon_set_context_reg_rmw() helper X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cb6ab17d1fffe2f387ce4ec7691f926260091118;p=mesa.git radv: add radeon_set_context_reg_rmw() helper For emitting RMW packets in the command stream. This new helper will be useful for implementing extended dynamic states to only overwrite the fields that need to be updated instead of storing more values in the pipeline. Signed-off-by: Samuel Pitoiset Reviewed-by: Bas Nieuwenhuizen Part-of: --- diff --git a/src/amd/vulkan/radv_cs.h b/src/amd/vulkan/radv_cs.h index 1c89f1f8395..2bef75c80ad 100644 --- a/src/amd/vulkan/radv_cs.h +++ b/src/amd/vulkan/radv_cs.h @@ -82,6 +82,18 @@ static inline void radeon_set_context_reg_idx(struct radeon_cmdbuf *cs, radeon_emit(cs, value); } +static inline void radeon_set_context_reg_rmw(struct radeon_cmdbuf *cs, + unsigned reg, unsigned value, + unsigned mask) +{ + assert(reg >= SI_CONTEXT_REG_OFFSET && reg < SI_CONTEXT_REG_END); + assert(cs->cdw + 4 <= cs->max_dw); + radeon_emit(cs, PKT3(PKT3_CONTEXT_REG_RMW, 2, 0)); + radeon_emit(cs, (reg - SI_CONTEXT_REG_OFFSET) >> 2); + radeon_emit(cs, mask); + radeon_emit(cs, value); +} + static inline void radeon_set_sh_reg_seq(struct radeon_cmdbuf *cs, unsigned reg, unsigned num) { assert(reg >= SI_SH_REG_OFFSET && reg < SI_SH_REG_END);