From b007065a0aebfba859cecbc23271542b04784567 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Tue, 8 Jan 2019 16:12:05 +0200 Subject: [PATCH] drm/i915/gvt: give the cmd parser cmd_info a const treatment It doesn't need to be changed, make it const. The string literals should anyway be referred to as const data. The following gets moved to rodata section: 0000000000000080 l O .rodata 0000000000001c00 cmd_info Reviewed-by: Yan Zhao Signed-off-by: Jani Nikula Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/cmd_parser.c | 24 ++++++++++++------------ drivers/gpu/drm/i915/gvt/trace.h | 2 +- 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 98415d465a09..cae00e6debaf 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -375,7 +375,7 @@ typedef int (*parser_cmd_handler)(struct parser_exec_state *s); #define ADDR_FIX_5(x1, x2, x3, x4, x5) (ADDR_FIX_1(x1) | ADDR_FIX_4(x2, x3, x4, x5)) struct cmd_info { - char *name; + const char *name; u32 opcode; #define F_LEN_MASK (1U<<0) @@ -425,7 +425,7 @@ struct cmd_info { struct cmd_entry { struct hlist_node hlist; - struct cmd_info *info; + const struct cmd_info *info; }; enum { @@ -474,7 +474,7 @@ struct parser_exec_state { int saved_buf_addr_type; bool is_ctx_wa; - struct cmd_info *info; + const struct cmd_info *info; struct intel_vgpu_workload *workload; }; @@ -625,7 +625,7 @@ static inline u32 get_opcode(u32 cmd, int ring_id) return cmd >> (32 - d_info->op_len); } -static inline struct cmd_info *find_cmd_entry(struct intel_gvt *gvt, +static inline const struct cmd_info *find_cmd_entry(struct intel_gvt *gvt, unsigned int opcode, int ring_id) { struct cmd_entry *e; @@ -638,7 +638,7 @@ static inline struct cmd_info *find_cmd_entry(struct intel_gvt *gvt, return NULL; } -static inline struct cmd_info *get_cmd_info(struct intel_gvt *gvt, +static inline const struct cmd_info *get_cmd_info(struct intel_gvt *gvt, u32 cmd, int ring_id) { u32 opcode; @@ -776,7 +776,7 @@ static inline int ip_gma_advance(struct parser_exec_state *s, return 0; } -static inline int get_cmd_length(struct cmd_info *info, u32 cmd) +static inline int get_cmd_length(const struct cmd_info *info, u32 cmd) { if ((info->flag & F_LEN_MASK) == F_LEN_CONST) return info->len; @@ -1643,7 +1643,7 @@ static int batch_buffer_needs_scan(struct parser_exec_state *s) static int find_bb_size(struct parser_exec_state *s, unsigned long *bb_size) { unsigned long gma = 0; - struct cmd_info *info; + const struct cmd_info *info; uint32_t cmd_len = 0; bool bb_end = false; struct intel_vgpu *vgpu = s->vgpu; @@ -1842,7 +1842,7 @@ static int cmd_handler_mi_batch_buffer_start(struct parser_exec_state *s) static int mi_noop_index; -static struct cmd_info cmd_info[] = { +static const struct cmd_info cmd_info[] = { {"MI_NOOP", OP_MI_NOOP, F_LEN_CONST, R_ALL, D_ALL, 0, 1, NULL}, {"MI_SET_PREDICATE", OP_MI_SET_PREDICATE, F_LEN_CONST, R_ALL, D_ALL, @@ -2521,7 +2521,7 @@ static void add_cmd_entry(struct intel_gvt *gvt, struct cmd_entry *e) static int cmd_parser_exec(struct parser_exec_state *s) { struct intel_vgpu *vgpu = s->vgpu; - struct cmd_info *info; + const struct cmd_info *info; u32 cmd; int ret = 0; @@ -2895,10 +2895,10 @@ int intel_gvt_scan_and_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx) return 0; } -static struct cmd_info *find_cmd_entry_any_ring(struct intel_gvt *gvt, +static const struct cmd_info *find_cmd_entry_any_ring(struct intel_gvt *gvt, unsigned int opcode, unsigned long rings) { - struct cmd_info *info = NULL; + const struct cmd_info *info = NULL; unsigned int ring; for_each_set_bit(ring, &rings, I915_NUM_ENGINES) { @@ -2913,7 +2913,7 @@ static int init_cmd_table(struct intel_gvt *gvt) { int i; struct cmd_entry *e; - struct cmd_info *info; + const struct cmd_info *info; unsigned int gen_type; gen_type = intel_gvt_get_device_type(gvt); diff --git a/drivers/gpu/drm/i915/gvt/trace.h b/drivers/gpu/drm/i915/gvt/trace.h index 1fd64202d74e..6d787750d279 100644 --- a/drivers/gpu/drm/i915/gvt/trace.h +++ b/drivers/gpu/drm/i915/gvt/trace.h @@ -228,7 +228,7 @@ TRACE_EVENT(oos_sync, TRACE_EVENT(gvt_command, TP_PROTO(u8 vgpu_id, u8 ring_id, u32 ip_gma, u32 *cmd_va, u32 cmd_len, u32 buf_type, u32 buf_addr_type, - void *workload, char *cmd_name), + void *workload, const char *cmd_name), TP_ARGS(vgpu_id, ring_id, ip_gma, cmd_va, cmd_len, buf_type, buf_addr_type, workload, cmd_name), -- 2.11.0