From: Adrián Larumbe Date: Fri, 29 Sep 2023 18:14:27 +0000 (+0100) Subject: drm/panfrost: Add cycle count GPU register definitions X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=51dcc15b5b0fb548c47cf5188f88d86fe79312bd;p=linux.git drm/panfrost: Add cycle count GPU register definitions These GPU registers will be used when programming the cycle counter, which we need for providing accurate fdinfo drm-cycles values to user space. Signed-off-by: Adrián Larumbe Reviewed-by: Boris Brezillon Reviewed-by: Steven Price Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Boris Brezillon Link: https://patchwork.freedesktop.org/patch/msgid/20230929181616.2769345-2-adrian.larumbe@collabora.com --- diff --git a/drivers/gpu/drm/panfrost/panfrost_regs.h b/drivers/gpu/drm/panfrost/panfrost_regs.h index 919f44ac853d6..55ec807550b3f 100644 --- a/drivers/gpu/drm/panfrost/panfrost_regs.h +++ b/drivers/gpu/drm/panfrost/panfrost_regs.h @@ -46,6 +46,8 @@ #define GPU_CMD_SOFT_RESET 0x01 #define GPU_CMD_PERFCNT_CLEAR 0x03 #define GPU_CMD_PERFCNT_SAMPLE 0x04 +#define GPU_CMD_CYCLE_COUNT_START 0x05 +#define GPU_CMD_CYCLE_COUNT_STOP 0x06 #define GPU_CMD_CLEAN_CACHES 0x07 #define GPU_CMD_CLEAN_INV_CACHES 0x08 #define GPU_STATUS 0x34 @@ -73,6 +75,9 @@ #define GPU_PRFCNT_TILER_EN 0x74 #define GPU_PRFCNT_MMU_L2_EN 0x7c +#define GPU_CYCLE_COUNT_LO 0x90 +#define GPU_CYCLE_COUNT_HI 0x94 + #define GPU_THREAD_MAX_THREADS 0x0A0 /* (RO) Maximum number of threads per core */ #define GPU_THREAD_MAX_WORKGROUP_SIZE 0x0A4 /* (RO) Maximum workgroup size */ #define GPU_THREAD_MAX_BARRIER_SIZE 0x0A8 /* (RO) Maximum threads waiting at a barrier */