From 440f136bd3b7b30a27254d810179a9853e8a8ee6 Mon Sep 17 00:00:00 2001 From: Michal Wajdeczko Date: Mon, 27 May 2019 18:36:09 +0000 Subject: [PATCH] drm/i915/guc: Update GuC CTB response definition Current GuC firmwares identify response message in a different way. v2: update comments for other H2G bits (Daniele) Signed-off-by: Michal Wajdeczko Cc: Daniele Ceraolo Spurio Cc: Kelvin Gardiner Cc: John Spotswood Reviewed-by: Daniele Ceraolo Spurio Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20190527183613.17076-14-michal.wajdeczko@intel.com --- drivers/gpu/drm/i915/intel_guc_ct.c | 2 +- drivers/gpu/drm/i915/intel_guc_fwif.h | 8 +++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_guc_ct.c b/drivers/gpu/drm/i915/intel_guc_ct.c index dde1dc0d6e69..2d5dc2aa22a7 100644 --- a/drivers/gpu/drm/i915/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/intel_guc_ct.c @@ -565,7 +565,7 @@ static inline unsigned int ct_header_get_action(u32 header) static inline bool ct_header_is_response(u32 header) { - return ct_header_get_action(header) == INTEL_GUC_ACTION_DEFAULT; + return !!(header & GUC_CT_MSG_IS_RESPONSE); } static int ctb_read(struct intel_guc_ct_buffer *ctb, u32 *data) diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h index fa745a58d38d..3d1de288d96c 100644 --- a/drivers/gpu/drm/i915/intel_guc_fwif.h +++ b/drivers/gpu/drm/i915/intel_guc_fwif.h @@ -355,14 +355,16 @@ struct guc_ct_buffer_desc { * * bit[4..0] message len (in dwords) * bit[7..5] reserved - * bit[8] write fence to desc - * bit[9] write status to H2G buff - * bit[10] send status (via G2H) + * bit[8] response (G2H only) + * bit[8] write fence to desc (H2G only) + * bit[9] write status to H2G buff (H2G only) + * bit[10] send status back via G2H (H2G only) * bit[15..11] reserved * bit[31..16] action code */ #define GUC_CT_MSG_LEN_SHIFT 0 #define GUC_CT_MSG_LEN_MASK 0x1F +#define GUC_CT_MSG_IS_RESPONSE (1 << 8) #define GUC_CT_MSG_WRITE_FENCE_TO_DESC (1 << 8) #define GUC_CT_MSG_WRITE_STATUS_TO_BUFF (1 << 9) #define GUC_CT_MSG_SEND_STATUS (1 << 10) -- 2.17.1