drm/nv40-50/gr: restructure grctx/prog generation

The conditional definition of the generation helper functions apparently
confuses some IDEs....
Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -1286,13 +1286,15 @@ extern int  nv20_graph_create(struct drm_device *);
 
 /* nv40_graph.c */
 extern int  nv40_graph_create(struct drm_device *);
-extern void nv40_grctx_init(struct nouveau_grctx *);
+extern void nv40_grctx_init(struct drm_device *, u32 *size);
+extern void nv40_grctx_fill(struct drm_device *, struct nouveau_gpuobj *);
 
 /* nv50_graph.c */
 extern int  nv50_graph_create(struct drm_device *);
-extern int  nv50_grctx_init(struct nouveau_grctx *);
 extern struct nouveau_enum nv50_data_error_names[];
 extern int  nv50_graph_isr_chid(struct drm_device *dev, u64 inst);
+extern int  nv50_grctx_init(struct drm_device *, u32 *, u32, u32 *, u32 *);
+extern void nv50_grctx_fill(struct drm_device *, struct nouveau_gpuobj *);
 
 /* nvc0_graph.c */
 extern int  nvc0_graph_create(struct drm_device *);

drivers/gpu/drm/nouveau/nouveau_grctx.h

@@ -18,7 +18,6 @@ struct nouveau_grctx {
 	uint32_t ctxvals_base;
 };
 
-#ifdef CP_CTX
 static inline void
 cp_out(struct nouveau_grctx *ctx, uint32_t inst)
 {
@@ -88,10 +87,8 @@ _cp_bra(struct nouveau_grctx *ctx, u32 mod, int flag, int state, int name)
 		    (state ? 0 : CP_BRA_IF_CLEAR));
 }
 #define cp_bra(c, f, s, n) _cp_bra((c), 0, CP_FLAG_##f, CP_FLAG_##f##_##s, n)
-#ifdef CP_BRA_MOD
 #define cp_cal(c, f, s, n) _cp_bra((c), 1, CP_FLAG_##f, CP_FLAG_##f##_##s, n)
 #define cp_ret(c, f, s) _cp_bra((c), 2, CP_FLAG_##f, CP_FLAG_##f##_##s, 0)
-#endif
 
 static inline void
 _cp_wait(struct nouveau_grctx *ctx, int flag, int state)
@@ -128,6 +125,5 @@ gr_def(struct nouveau_grctx *ctx, uint32_t reg, uint32_t val)
 
 	nv_wo32(ctx->data, reg * 4, val);
 }
-#endif
 
 #endif

drivers/gpu/drm/nouveau/nv40_graph.c

@@ -27,7 +27,6 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_grctx.h"
 #include "nouveau_ramht.h"
 
 struct nv40_graph_engine {
@@ -42,7 +41,6 @@ nv40_graph_context_new(struct nouveau_channel *chan, int engine)
 	struct drm_device *dev = chan->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_gpuobj *grctx = NULL;
-	struct nouveau_grctx ctx = {};
 	unsigned long flags;
 	int ret;
 
@@ -52,11 +50,7 @@ nv40_graph_context_new(struct nouveau_channel *chan, int engine)
 		return ret;
 
 	/* Initialise default context values */
-	ctx.dev = chan->dev;
-	ctx.mode = NOUVEAU_GRCTX_VALS;
-	ctx.data = grctx;
-	nv40_grctx_init(&ctx);
-
+	nv40_grctx_fill(dev, grctx);
 	nv_wo32(grctx, 0, grctx->vinst);
 
 	/* init grctx pointer in ramfc, and on PFIFO if channel is
@@ -184,8 +178,7 @@ nv40_graph_init(struct drm_device *dev, int engine)
 	struct nv40_graph_engine *pgraph = nv_engine(dev, engine);
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
-	struct nouveau_grctx ctx = {};
-	uint32_t vramsz, *cp;
+	uint32_t vramsz;
 	int i, j;
 
 	nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) &
@@ -193,22 +186,8 @@ nv40_graph_init(struct drm_device *dev, int engine)
 	nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) |
 			 NV_PMC_ENABLE_PGRAPH);
 
-	cp = kmalloc(sizeof(*cp) * 256, GFP_KERNEL);
-	if (!cp)
-		return -ENOMEM;
-
-	ctx.dev = dev;
-	ctx.mode = NOUVEAU_GRCTX_PROG;
-	ctx.data = cp;
-	ctx.ctxprog_max = 256;
-	nv40_grctx_init(&ctx);
-	pgraph->grctx_size = ctx.ctxvals_pos * 4;
-
-	nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
-	for (i = 0; i < ctx.ctxprog_len; i++)
-		nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, cp[i]);
-
-	kfree(cp);
+	/* generate and upload context program */
+	nv40_grctx_init(dev, &pgraph->grctx_size);
 
 	/* No context present currently */
 	nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, 0x00000000);

drivers/gpu/drm/nouveau/nv40_grctx.c

@@ -595,8 +595,8 @@ nv40_graph_construct_shader(struct nouveau_grctx *ctx)
 	}
 }
 
-void
-nv40_grctx_init(struct nouveau_grctx *ctx)
+static void
+nv40_grctx_generate(struct nouveau_grctx *ctx)
 {
 	/* decide whether we're loading/unloading the context */
 	cp_bra (ctx, AUTO_SAVE, PENDING, cp_setup_save);
@@ -660,3 +660,31 @@ nv40_grctx_init(struct nouveau_grctx *ctx)
 	cp_out (ctx, CP_END);
 }
 
+void
+nv40_grctx_fill(struct drm_device *dev, struct nouveau_gpuobj *mem)
+{
+	nv40_grctx_generate(&(struct nouveau_grctx) {
+			     .dev = dev,
+			     .mode = NOUVEAU_GRCTX_VALS,
+			     .data = mem,
+			   });
+}
+
+void
+nv40_grctx_init(struct drm_device *dev, u32 *size)
+{
+	u32 ctxprog[256], i;
+	struct nouveau_grctx ctx = {
+		.dev = dev,
+		.mode = NOUVEAU_GRCTX_PROG,
+		.data = ctxprog,
+		.ctxprog_max = ARRAY_SIZE(ctxprog)
+	};
+
+	nv40_grctx_generate(&ctx);
+
+	nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
+	for (i = 0; i < ctx.ctxprog_len; i++)
+		nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, ctxprog[i]);
+	*size = ctx.ctxvals_pos * 4;
+}

drivers/gpu/drm/nouveau/nv50_graph.c

@@ -28,7 +28,6 @@
 #include "drm.h"
 #include "nouveau_drv.h"
 #include "nouveau_ramht.h"
-#include "nouveau_grctx.h"
 #include "nouveau_dma.h"
 #include "nouveau_vm.h"
 #include "nv50_evo.h"
@@ -229,7 +228,6 @@ nv50_graph_context_new(struct nouveau_channel *chan, int engine)
 	struct nouveau_gpuobj *ramin = chan->ramin;
 	struct nouveau_gpuobj *grctx = NULL;
 	struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
-	struct nouveau_grctx ctx = {};
 	int hdr, ret;
 
 	NV_DEBUG(dev, "ch%d\n", chan->id);
@@ -248,11 +246,7 @@ nv50_graph_context_new(struct nouveau_channel *chan, int engine)
 	nv_wo32(ramin, hdr + 0x10, 0);
 	nv_wo32(ramin, hdr + 0x14, 0x00010000);
 
-	ctx.dev = chan->dev;
-	ctx.mode = NOUVEAU_GRCTX_VALS;
-	ctx.data = grctx;
-	nv50_grctx_init(&ctx);
-
+	nv50_grctx_fill(dev, grctx);
 	nv_wo32(grctx, 0x00000, chan->ramin->vinst >> 12);
 
 	dev_priv->engine.instmem.flush(dev);
@@ -996,28 +990,21 @@ nv50_graph_create(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nv50_graph_engine *pgraph;
-	struct nouveau_grctx ctx = {};
 	int ret;
 
 	pgraph = kzalloc(sizeof(*pgraph),GFP_KERNEL);
 	if (!pgraph)
 		return -ENOMEM;
 
-	ctx.dev = dev;
-	ctx.mode = NOUVEAU_GRCTX_PROG;
-	ctx.data = pgraph->ctxprog;
-	ctx.ctxprog_max = ARRAY_SIZE(pgraph->ctxprog);
-
-	ret = nv50_grctx_init(&ctx);
+	ret = nv50_grctx_init(dev, pgraph->ctxprog, ARRAY_SIZE(pgraph->ctxprog),
+				  &pgraph->ctxprog_size,
+				  &pgraph->grctx_size);
 	if (ret) {
 		NV_ERROR(dev, "PGRAPH: ctxprog build failed\n");
 		kfree(pgraph);
 		return 0;
 	}
 
-	pgraph->grctx_size = ctx.ctxvals_pos * 4;
-	pgraph->ctxprog_size = ctx.ctxprog_len;
-
 	pgraph->base.destroy = nv50_graph_destroy;
 	pgraph->base.init = nv50_graph_init;
 	pgraph->base.fini = nv50_graph_fini;

drivers/gpu/drm/nouveau/nv50_grctx.c

@@ -172,8 +172,8 @@ static void nv50_graph_construct_xfer2(struct nouveau_grctx *ctx);
 
 /* Main function: construct the ctxprog skeleton, call the other functions. */
 
-int
-nv50_grctx_init(struct nouveau_grctx *ctx)
+static int
+nv50_grctx_generate(struct nouveau_grctx *ctx)
 {
 	struct drm_nouveau_private *dev_priv = ctx->dev->dev_private;
 
@@ -277,6 +277,33 @@ nv50_grctx_init(struct nouveau_grctx *ctx)
 	return 0;
 }
 
+void
+nv50_grctx_fill(struct drm_device *dev, struct nouveau_gpuobj *mem)
+{
+	nv50_grctx_generate(&(struct nouveau_grctx) {
+			     .dev = dev,
+			     .mode = NOUVEAU_GRCTX_VALS,
+			     .data = mem,
+			   });
+}
+
+int
+nv50_grctx_init(struct drm_device *dev, u32 *data, u32 max, u32 *len, u32 *cnt)
+{
+	struct nouveau_grctx ctx = {
+		.dev = dev,
+		.mode = NOUVEAU_GRCTX_PROG,
+		.data = data,
+		.ctxprog_max = max
+	};
+	int ret;
+
+	ret = nv50_grctx_generate(&ctx);
+	*cnt = ctx.ctxvals_pos * 4;
+	*len = ctx.ctxprog_len;
+	return ret;
+}
+
 /*
  * Constructs MMIO part of ctxprog and ctxvals. Just a matter of knowing which
  * registers to save/restore and the default values for them.