drm/msm/dpu: Mark various data tables as const

These structures look like a bunch of data tables that aren't going to
change after boot. Let's move them to the const RO section of memory so
that they can't be modified at runtime on modern machines.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c

@@ -60,7 +60,7 @@ static const struct dpu_caps sdm845_dpu_caps = {
 	.has_idle_pc = true,
 };
 
-static struct dpu_mdp_cfg sdm845_mdp[] = {
+static const struct dpu_mdp_cfg sdm845_mdp[] = {
 	{
 	.name = "top_0", .id = MDP_TOP,
 	.base = 0x0, .len = 0x45C,
@@ -88,7 +88,7 @@ static struct dpu_mdp_cfg sdm845_mdp[] = {
 /*************************************************************
  * CTL sub blocks config
  *************************************************************/
-static struct dpu_ctl_cfg sdm845_ctl[] = {
+static const struct dpu_ctl_cfg sdm845_ctl[] = {
 	{
 	.name = "ctl_0", .id = CTL_0,
 	.base = 0x1000, .len = 0xE4,
@@ -184,7 +184,7 @@ static const struct dpu_sspp_sub_blks sdm845_dma_sblk_3 = _DMA_SBLK("11", 4);
 	.clk_ctrl = _clkctrl \
 	}
 
-static struct dpu_sspp_cfg sdm845_sspp[] = {
+static const struct dpu_sspp_cfg sdm845_sspp[] = {
 	SSPP_BLK("sspp_0", SSPP_VIG0, 0x4000, VIG_SDM845_MASK,
 		sdm845_vig_sblk_0, 0,  SSPP_TYPE_VIG, DPU_CLK_CTRL_VIG0),
 	SSPP_BLK("sspp_1", SSPP_VIG1, 0x6000, VIG_SDM845_MASK,
@@ -225,7 +225,7 @@ static const struct dpu_lm_sub_blks sdm845_lm_sblk = {
 	.lm_pair_mask = (1 << _lmpair) \
 	}
 
-static struct dpu_lm_cfg sdm845_lm[] = {
+static const struct dpu_lm_cfg sdm845_lm[] = {
 	LM_BLK("lm_0", LM_0, 0x44000, PINGPONG_0, LM_1),
 	LM_BLK("lm_1", LM_1, 0x45000, PINGPONG_1, LM_0),
 	LM_BLK("lm_2", LM_2, 0x46000, PINGPONG_2, LM_5),
@@ -264,7 +264,7 @@ static const struct dpu_pingpong_sub_blks sdm845_pp_sblk = {
 	.sblk = &sdm845_pp_sblk \
 	}
 
-static struct dpu_pingpong_cfg sdm845_pp[] = {
+static const struct dpu_pingpong_cfg sdm845_pp[] = {
 	PP_BLK_TE("pingpong_0", PINGPONG_0, 0x70000),
 	PP_BLK_TE("pingpong_1", PINGPONG_1, 0x70800),
 	PP_BLK("pingpong_2", PINGPONG_2, 0x71000),
@@ -283,7 +283,7 @@ static struct dpu_pingpong_cfg sdm845_pp[] = {
 	.prog_fetch_lines_worst_case = 24 \
 	}
 
-static struct dpu_intf_cfg sdm845_intf[] = {
+static const struct dpu_intf_cfg sdm845_intf[] = {
 	INTF_BLK("intf_0", INTF_0, 0x6A000, INTF_DP, 0),
 	INTF_BLK("intf_1", INTF_1, 0x6A800, INTF_DSI, 0),
 	INTF_BLK("intf_2", INTF_2, 0x6B000, INTF_DSI, 1),
@@ -294,10 +294,10 @@ static struct dpu_intf_cfg sdm845_intf[] = {
  * VBIF sub blocks config
  *************************************************************/
 /* VBIF QOS remap */
-static u32 sdm845_rt_pri_lvl[] = {3, 3, 4, 4, 5, 5, 6, 6};
-static u32 sdm845_nrt_pri_lvl[] = {3, 3, 3, 3, 3, 3, 3, 3};
+static const u32 sdm845_rt_pri_lvl[] = {3, 3, 4, 4, 5, 5, 6, 6};
+static const u32 sdm845_nrt_pri_lvl[] = {3, 3, 3, 3, 3, 3, 3, 3};
 
-static struct dpu_vbif_cfg sdm845_vbif[] = {
+static const struct dpu_vbif_cfg sdm845_vbif[] = {
 	{
 	.name = "vbif_0", .id = VBIF_0,
 	.base = 0, .len = 0x1040,
@@ -316,7 +316,7 @@ static struct dpu_vbif_cfg sdm845_vbif[] = {
 	},
 };
 
-static struct dpu_reg_dma_cfg sdm845_regdma = {
+static const struct dpu_reg_dma_cfg sdm845_regdma = {
 	.base = 0x0, .version = 0x1, .trigger_sel_off = 0x119c
 };
 
@@ -325,7 +325,7 @@ static struct dpu_reg_dma_cfg sdm845_regdma = {
  *************************************************************/
 
 /* SSPP QOS LUTs */
-static struct dpu_qos_lut_entry sdm845_qos_linear[] = {
+static const struct dpu_qos_lut_entry sdm845_qos_linear[] = {
 	{.fl = 4, .lut = 0x357},
 	{.fl = 5, .lut = 0x3357},
 	{.fl = 6, .lut = 0x23357},
@@ -340,7 +340,7 @@ static struct dpu_qos_lut_entry sdm845_qos_linear[] = {
 	{.fl = 0, .lut = 0x11222222223357}
 };
 
-static struct dpu_qos_lut_entry sdm845_qos_macrotile[] = {
+static const struct dpu_qos_lut_entry sdm845_qos_macrotile[] = {
 	{.fl = 10, .lut = 0x344556677},
 	{.fl = 11, .lut = 0x3344556677},
 	{.fl = 12, .lut = 0x23344556677},
@@ -349,11 +349,11 @@ static struct dpu_qos_lut_entry sdm845_qos_macrotile[] = {
 	{.fl = 0, .lut = 0x112233344556677},
 };
 
-static struct dpu_qos_lut_entry sdm845_qos_nrt[] = {
+static const struct dpu_qos_lut_entry sdm845_qos_nrt[] = {
 	{.fl = 0, .lut = 0x0},
 };
 
-static struct dpu_perf_cfg sdm845_perf_data = {
+static const struct dpu_perf_cfg sdm845_perf_data = {
 	.max_bw_low = 6800000,
 	.max_bw_high = 6800000,
 	.min_core_ib = 2400000,
@@ -424,7 +424,7 @@ static void sdm845_cfg_init(struct dpu_mdss_cfg *dpu_cfg)
 	};
 }
 
-static struct dpu_mdss_hw_cfg_handler cfg_handler[] = {
+static const struct dpu_mdss_hw_cfg_handler cfg_handler[] = {
 	{ .hw_rev = DPU_HW_VER_400, .cfg_init = sdm845_cfg_init},
 	{ .hw_rev = DPU_HW_VER_401, .cfg_init = sdm845_cfg_init},
 };

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h

@@ -269,7 +269,7 @@ struct dpu_qos_lut_entry {
  */
 struct dpu_qos_lut_tbl {
 	u32 nentry;
-	struct dpu_qos_lut_entry *entries;
+	const struct dpu_qos_lut_entry *entries;
 };
 
 /**
@@ -511,7 +511,7 @@ struct dpu_vbif_dynamic_ot_cfg {
  */
 struct dpu_vbif_dynamic_ot_tbl {
 	u32 count;
-	struct dpu_vbif_dynamic_ot_cfg *cfg;
+	const struct dpu_vbif_dynamic_ot_cfg *cfg;
 };
 
 /**
@@ -521,7 +521,7 @@ struct dpu_vbif_dynamic_ot_tbl {
  */
 struct dpu_vbif_qos_tbl {
 	u32 npriority_lvl;
-	u32 *priority_lvl;
+	const u32 *priority_lvl;
 };
 
 /**
@@ -653,25 +653,25 @@ struct dpu_mdss_cfg {
 	const struct dpu_caps *caps;
 
 	u32 mdp_count;
-	struct dpu_mdp_cfg *mdp;
+	const struct dpu_mdp_cfg *mdp;
 
 	u32 ctl_count;
-	struct dpu_ctl_cfg *ctl;
+	const struct dpu_ctl_cfg *ctl;
 
 	u32 sspp_count;
-	struct dpu_sspp_cfg *sspp;
+	const struct dpu_sspp_cfg *sspp;
 
 	u32 mixer_count;
-	struct dpu_lm_cfg *mixer;
+	const struct dpu_lm_cfg *mixer;
 
 	u32 pingpong_count;
-	struct dpu_pingpong_cfg *pingpong;
+	const struct dpu_pingpong_cfg *pingpong;
 
 	u32 intf_count;
-	struct dpu_intf_cfg *intf;
+	const struct dpu_intf_cfg *intf;
 
 	u32 vbif_count;
-	struct dpu_vbif_cfg *vbif;
+	const struct dpu_vbif_cfg *vbif;
 
 	u32 reg_dma_count;
 	struct dpu_reg_dma_cfg dma_cfg;
@@ -681,9 +681,9 @@ struct dpu_mdss_cfg {
 	/* Add additional block data structures here */
 
 	struct dpu_perf_cfg perf;
-	struct dpu_format_extended *dma_formats;
-	struct dpu_format_extended *cursor_formats;
-	struct dpu_format_extended *vig_formats;
+	const struct dpu_format_extended *dma_formats;
+	const struct dpu_format_extended *cursor_formats;
+	const struct dpu_format_extended *vig_formats;
 };
 
 struct dpu_mdss_hw_cfg_handler {

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c

@@ -28,8 +28,8 @@
 
 #define DPU_REG_RESET_TIMEOUT_US        2000
 
-static struct dpu_ctl_cfg *_ctl_offset(enum dpu_ctl ctl,
-		struct dpu_mdss_cfg *m,
+static const struct dpu_ctl_cfg *_ctl_offset(enum dpu_ctl ctl,
+		const struct dpu_mdss_cfg *m,
 		void __iomem *addr,
 		struct dpu_hw_blk_reg_map *b)
 {
@@ -476,10 +476,10 @@ static struct dpu_hw_blk_ops dpu_hw_ops;
 
 struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m)
+		const struct dpu_mdss_cfg *m)
 {
 	struct dpu_hw_ctl *c;
-	struct dpu_ctl_cfg *cfg;
+	const struct dpu_ctl_cfg *cfg;
 
 	c = kzalloc(sizeof(*c), GFP_KERNEL);
 	if (!c)

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h

@@ -195,7 +195,7 @@ static inline struct dpu_hw_ctl *to_dpu_hw_ctl(struct dpu_hw_blk *hw)
  */
 struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m);
+		const struct dpu_mdss_cfg *m);
 
 /**
  * dpu_hw_ctl_destroy(): Destroys ctl driver context

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c

@@ -56,8 +56,8 @@
 #define   INTF_FRAME_COUNT              0x0AC
 #define   INTF_LINE_COUNT               0x0B0
 
-static struct dpu_intf_cfg *_intf_offset(enum dpu_intf intf,
-		struct dpu_mdss_cfg *m,
+static const struct dpu_intf_cfg *_intf_offset(enum dpu_intf intf,
+		const struct dpu_mdss_cfg *m,
 		void __iomem *addr,
 		struct dpu_hw_blk_reg_map *b)
 {
@@ -260,10 +260,10 @@ static struct dpu_hw_blk_ops dpu_hw_ops;
 
 struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m)
+		const struct dpu_mdss_cfg *m)
 {
 	struct dpu_hw_intf *c;
-	struct dpu_intf_cfg *cfg;
+	const struct dpu_intf_cfg *cfg;
 
 	c = kzalloc(sizeof(*c), GFP_KERNEL);
 	if (!c)

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.h

@@ -92,7 +92,7 @@ struct dpu_hw_intf {
  */
 struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m);
+		const struct dpu_mdss_cfg *m);
 
 /**
  * dpu_hw_intf_destroy(): Destroys INTF driver context

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c

@@ -24,8 +24,8 @@
 #define LM_BLEND0_FG_ALPHA               0x04
 #define LM_BLEND0_BG_ALPHA               0x08
 
-static struct dpu_lm_cfg *_lm_offset(enum dpu_lm mixer,
-		struct dpu_mdss_cfg *m,
+static const struct dpu_lm_cfg *_lm_offset(enum dpu_lm mixer,
+		const struct dpu_mdss_cfg *m,
 		void __iomem *addr,
 		struct dpu_hw_blk_reg_map *b)
 {
@@ -147,7 +147,7 @@ static void dpu_hw_lm_setup_color3(struct dpu_hw_mixer *ctx,
 	DPU_REG_WRITE(c, LM_OP_MODE, op_mode);
 }
 
-static void _setup_mixer_ops(struct dpu_mdss_cfg *m,
+static void _setup_mixer_ops(const struct dpu_mdss_cfg *m,
 		struct dpu_hw_lm_ops *ops,
 		unsigned long features)
 {
@@ -164,10 +164,10 @@ static struct dpu_hw_blk_ops dpu_hw_ops;
 
 struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m)
+		const struct dpu_mdss_cfg *m)
 {
 	struct dpu_hw_mixer *c;
-	struct dpu_lm_cfg *cfg;
+	const struct dpu_lm_cfg *cfg;
 
 	c = kzalloc(sizeof(*c), GFP_KERNEL);
 	if (!c)

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.h

@@ -91,7 +91,7 @@ static inline struct dpu_hw_mixer *to_dpu_hw_mixer(struct dpu_hw_blk *hw)
  */
 struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m);
+		const struct dpu_mdss_cfg *m);
 
 /**
  * dpu_hw_lm_destroy(): Destroys layer mixer driver context

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c

@@ -28,8 +28,8 @@
 #define PP_FBC_BUDGET_CTL               0x038
 #define PP_FBC_LOSSY_MODE               0x03C
 
-static struct dpu_pingpong_cfg *_pingpong_offset(enum dpu_pingpong pp,
-		struct dpu_mdss_cfg *m,
+static const struct dpu_pingpong_cfg *_pingpong_offset(enum dpu_pingpong pp,
+		const struct dpu_mdss_cfg *m,
 		void __iomem *addr,
 		struct dpu_hw_blk_reg_map *b)
 {
@@ -195,10 +195,10 @@ static struct dpu_hw_blk_ops dpu_hw_ops;
 
 struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m)
+		const struct dpu_mdss_cfg *m)
 {
 	struct dpu_hw_pingpong *c;
-	struct dpu_pingpong_cfg *cfg;
+	const struct dpu_pingpong_cfg *cfg;
 
 	c = kzalloc(sizeof(*c), GFP_KERNEL);
 	if (!c)

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h

@@ -106,7 +106,7 @@ struct dpu_hw_pingpong {
  */
 struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx,
 		void __iomem *addr,
-		struct dpu_mdss_cfg *m);
+		const struct dpu_mdss_cfg *m);
 
 /**
  * dpu_hw_pingpong_destroy - destroys pingpong driver context

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c

@@ -666,7 +666,7 @@ static void _setup_layer_ops(struct dpu_hw_pipe *c,
 		c->ops.setup_cdp = dpu_hw_sspp_setup_cdp;
 }
 
-static struct dpu_sspp_cfg *_sspp_offset(enum dpu_sspp sspp,
+static const struct dpu_sspp_cfg *_sspp_offset(enum dpu_sspp sspp,
 		void __iomem *addr,
 		struct dpu_mdss_cfg *catalog,
 		struct dpu_hw_blk_reg_map *b)
@@ -696,7 +696,7 @@ struct dpu_hw_pipe *dpu_hw_sspp_init(enum dpu_sspp idx,
 		bool is_virtual_pipe)
 {
 	struct dpu_hw_pipe *hw_pipe;
-	struct dpu_sspp_cfg *cfg;
+	const struct dpu_sspp_cfg *cfg;
 
 	if (!addr || !catalog)
 		return ERR_PTR(-EINVAL);

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h

@@ -373,7 +373,7 @@ struct dpu_hw_pipe {
 	struct dpu_hw_blk base;
 	struct dpu_hw_blk_reg_map hw;
 	struct dpu_mdss_cfg *catalog;
-	struct dpu_mdp_cfg *mdp;
+	const struct dpu_mdp_cfg *mdp;
 
 	/* Pipe */
 	enum dpu_sspp idx;

drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c

@@ -141,11 +141,11 @@ int dpu_rm_destroy(struct dpu_rm *rm)
 
 static int _dpu_rm_hw_blk_create(
 		struct dpu_rm *rm,
-		struct dpu_mdss_cfg *cat,
+		const struct dpu_mdss_cfg *cat,
 		void __iomem *mmio,
 		enum dpu_hw_blk_type type,
 		uint32_t id,
-		void *hw_catalog_info)
+		const void *hw_catalog_info)
 {
 	struct dpu_rm_hw_blk *blk;
 	void *hw;
@@ -215,7 +215,7 @@ int dpu_rm_init(struct dpu_rm *rm,
 
 	/* Interrogate HW catalog and create tracking items for hw blocks */
 	for (i = 0; i < cat->mixer_count; i++) {
-		struct dpu_lm_cfg *lm = &cat->mixer[i];
+		const struct dpu_lm_cfg *lm = &cat->mixer[i];
 
 		if (lm->pingpong == PINGPONG_MAX) {
 			DPU_DEBUG("skip mixer %d without pingpong\n", lm->id);

drivers/gpu/drm/msm/disp/dpu1/dpu_vbif.c

@@ -299,7 +299,7 @@ void dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
 	entry = debugfs_create_dir("vbif", debugfs_root);
 
 	for (i = 0; i < dpu_kms->catalog->vbif_count; i++) {
-		struct dpu_vbif_cfg *vbif = &dpu_kms->catalog->vbif[i];
+		const struct dpu_vbif_cfg *vbif = &dpu_kms->catalog->vbif[i];
 
 		snprintf(vbif_name, sizeof(vbif_name), "%d", vbif->id);
 
@@ -318,7 +318,7 @@ void dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
 			(u32 *)&vbif->default_ot_wr_limit);
 
 		for (j = 0; j < vbif->dynamic_ot_rd_tbl.count; j++) {
-			struct dpu_vbif_dynamic_ot_cfg *cfg =
+			const struct dpu_vbif_dynamic_ot_cfg *cfg =
 					&vbif->dynamic_ot_rd_tbl.cfg[j];
 
 			snprintf(vbif_name, sizeof(vbif_name),
@@ -332,7 +332,7 @@ void dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
 		}
 
 		for (j = 0; j < vbif->dynamic_ot_wr_tbl.count; j++) {
-			struct dpu_vbif_dynamic_ot_cfg *cfg =
+			const struct dpu_vbif_dynamic_ot_cfg *cfg =
 					&vbif->dynamic_ot_wr_tbl.cfg[j];
 
 			snprintf(vbif_name, sizeof(vbif_name),