drm/nouveau/acr: use common falcon HS FW code for ACR FWs

Adds context binding and support for FWs with a bootloader to the code
that was added to load VPR scrubber HS binaries, and ports ACR over to
using all of it.

- gv100 split from gp108 to handle FW exit status differences

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

drivers/gpu/drm/nouveau/include/nvkm/core/falcon.h

@@ -6,6 +6,7 @@
 enum nvkm_falcon_mem {
 	IMEM,
 	DMEM,
+	EMEM,
 };
 
 static inline const char *
@@ -14,6 +15,7 @@ nvkm_falcon_mem(enum nvkm_falcon_mem mem)
 	switch (mem) {
 	case IMEM: return "imem";
 	case DMEM: return "dmem";
+	case EMEM: return "emem";
 	default:
 		WARN_ON(1);
 		return "?mem";
@@ -25,6 +27,8 @@ struct nvkm_falcon_func_pio {
 	int max;
 	void (*wr_init)(struct nvkm_falcon *, u8 port, bool sec, u32 mem_base);
 	void (*wr)(struct nvkm_falcon *, u8 port, const u8 *img, int len, u16 tag);
+	void (*rd_init)(struct nvkm_falcon *, u8 port, u32 mem_base);
+	void (*rd)(struct nvkm_falcon *, u8 port, const u8 *img, int len);
 };
 
 int nvkm_falcon_ctor(const struct nvkm_falcon_func *, struct nvkm_subdev *owner,
@@ -33,27 +37,25 @@ void nvkm_falcon_dtor(struct nvkm_falcon *);
 int nvkm_falcon_reset(struct nvkm_falcon *);
 int nvkm_falcon_pio_wr(struct nvkm_falcon *, const u8 *img, u32 img_base, u8 port,
 		       enum nvkm_falcon_mem mem_type, u32 mem_base, int len, u16 tag, bool sec);
+int nvkm_falcon_pio_rd(struct nvkm_falcon *, u8 port, enum nvkm_falcon_mem type, u32 mem_base,
+		       const u8 *img, u32 img_base, int len);
 
 int gm200_flcn_reset_wait_mem_scrubbing(struct nvkm_falcon *);
 int gm200_flcn_disable(struct nvkm_falcon *);
 int gm200_flcn_enable(struct nvkm_falcon *);
+void gm200_flcn_bind_inst(struct nvkm_falcon *, int, u64);
+int gm200_flcn_bind_stat(struct nvkm_falcon *, bool);
 extern const struct nvkm_falcon_func_pio gm200_flcn_imem_pio;
 extern const struct nvkm_falcon_func_pio gm200_flcn_dmem_pio;
 
 int gp102_flcn_reset_eng(struct nvkm_falcon *);
+extern const struct nvkm_falcon_func_pio gp102_flcn_emem_pio;
 
 void nvkm_falcon_v1_load_imem(struct nvkm_falcon *,
 			      void *, u32, u32, u16, u8, bool);
 void nvkm_falcon_v1_load_dmem(struct nvkm_falcon *, void *, u32, u32, u8);
-void nvkm_falcon_v1_read_dmem(struct nvkm_falcon *, u32, u32, u8, void *);
-void nvkm_falcon_v1_bind_context(struct nvkm_falcon *, struct nvkm_memory *);
-int nvkm_falcon_v1_wait_for_halt(struct nvkm_falcon *, u32);
-int nvkm_falcon_v1_clear_interrupt(struct nvkm_falcon *, u32);
-void nvkm_falcon_v1_set_start_addr(struct nvkm_falcon *, u32 start_addr);
 void nvkm_falcon_v1_start(struct nvkm_falcon *);
 
-void gp102_sec2_flcn_bind_context(struct nvkm_falcon *, struct nvkm_memory *);
-
 #define FLCN_PRINTK(f,l,p,fmt,a...) ({                                                          \
 	if ((f)->owner->name != (f)->name)                                                      \
 		nvkm_printk___((f)->owner, (f)->user, NV_DBG_##l, p, "%s:"fmt, (f)->name, ##a); \
@@ -70,7 +72,9 @@ struct nvkm_falcon_fw {
 	const struct nvkm_falcon_fw_func {
 		int (*signature)(struct nvkm_falcon_fw *, u32 *sig_base_src);
 		int (*reset)(struct nvkm_falcon_fw *);
+		int (*setup)(struct nvkm_falcon_fw *);
 		int (*load)(struct nvkm_falcon_fw *);
+		int (*load_bld)(struct nvkm_falcon_fw *);
 		int (*boot)(struct nvkm_falcon_fw *,
 			    u32 *mbox0, u32 *mbox1, u32 mbox0_ok, u32 irqsclr);
 	} *func;
@@ -96,11 +100,14 @@ struct nvkm_falcon_fw {
 	u32 dmem_size;
 	u32 dmem_sign;
 
+	u8 *boot;
+	u32 boot_size;
 	u32 boot_addr;
 
 	struct nvkm_falcon *falcon;
 	struct nvkm_memory *inst;
 	struct nvkm_vmm *vmm;
+	struct nvkm_vma *vma;
 };
 
 int nvkm_falcon_fw_ctor(const struct nvkm_falcon_fw_func *, const char *name, struct nvkm_device *,

drivers/gpu/drm/nouveau/include/nvkm/core/firmware.h

@@ -1,20 +1,28 @@
 /* SPDX-License-Identifier: MIT */
 #ifndef __NVKM_FIRMWARE_H__
 #define __NVKM_FIRMWARE_H__
+#include <core/memory.h>
 #include <core/option.h>
 #include <core/subdev.h>
 
 struct nvkm_firmware {
 	const struct nvkm_firmware_func {
 		enum nvkm_firmware_type {
 			NVKM_FIRMWARE_IMG_RAM,
+			NVKM_FIRMWARE_IMG_DMA,
 		} type;
 	} *func;
 	const char *name;
 	struct nvkm_device *device;
 
 	int len;
 	u8 *img;
+	u64 phys;
+
+	struct nvkm_firmware_mem {
+		struct nvkm_memory memory;
+		struct scatterlist sgl;
+	} mem;
 };
 
 int nvkm_firmware_ctor(const struct nvkm_firmware_func *, const char *name, struct nvkm_device *,

drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h

@@ -64,9 +64,22 @@ struct nvkm_falcon_func {
 	int (*reset_wait_mem_scrubbing)(struct nvkm_falcon *);
 
 	u32 debug;
+	void (*bind_inst)(struct nvkm_falcon *, int target, u64 addr);
+	int (*bind_stat)(struct nvkm_falcon *, bool intr);
+	bool bind_intr;
+
 	const struct nvkm_falcon_func_pio *imem_pio;
 	const struct nvkm_falcon_func_pio *dmem_pio;
 
+	u32 emem_addr;
+	const struct nvkm_falcon_func_pio *emem_pio;
+
+	struct {
+		u32 head;
+		u32 tail;
+		u32 stride;
+	} cmdq, msgq;
+
 	struct {
 		u32 *data;
 		u32  size;
@@ -78,24 +91,10 @@ struct nvkm_falcon_func {
 	void (*init)(struct nvkm_falcon *);
 	void (*intr)(struct nvkm_falcon *, struct nvkm_chan *);
 
-	u32 fbif;
-
 	void (*load_imem)(struct nvkm_falcon *, void *, u32, u32, u16, u8, bool);
 	void (*load_dmem)(struct nvkm_falcon *, void *, u32, u32, u8);
-	void (*read_dmem)(struct nvkm_falcon *, u32, u32, u8, void *);
-	u32 emem_addr;
-	void (*bind_context)(struct nvkm_falcon *, struct nvkm_memory *);
-	int (*wait_for_halt)(struct nvkm_falcon *, u32);
-	int (*clear_interrupt)(struct nvkm_falcon *, u32);
-	void (*set_start_addr)(struct nvkm_falcon *, u32 start_addr);
 	void (*start)(struct nvkm_falcon *);
 
-	struct {
-		u32 head;
-		u32 tail;
-		u32 stride;
-	} cmdq, msgq;
-
 	struct nvkm_sclass sclass[];
 };
 
@@ -122,10 +121,5 @@ nvkm_falcon_mask(struct nvkm_falcon *falcon, u32 addr, u32 mask, u32 val)
 void nvkm_falcon_load_imem(struct nvkm_falcon *, void *, u32, u32, u16, u8,
 			   bool);
 void nvkm_falcon_load_dmem(struct nvkm_falcon *, void *, u32, u32, u8);
-void nvkm_falcon_read_dmem(struct nvkm_falcon *, u32, u32, u8, void *);
-void nvkm_falcon_bind_context(struct nvkm_falcon *, struct nvkm_memory *);
-void nvkm_falcon_set_start_addr(struct nvkm_falcon *, u32);
 void nvkm_falcon_start(struct nvkm_falcon *);
-int nvkm_falcon_wait_for_halt(struct nvkm_falcon *, u32);
-int nvkm_falcon_clear_interrupt(struct nvkm_falcon *, u32);
 #endif

drivers/gpu/drm/nouveau/include/nvkm/subdev/acr.h

@@ -36,7 +36,7 @@ struct nvkm_acr {
 	const struct nvkm_acr_func *func;
 	struct nvkm_subdev subdev;
 
-	struct list_head hsfw, hsf;
+	struct list_head hsfw;
 	struct list_head lsfw, lsf;
 
 	u64 managed_falcons;
@@ -65,6 +65,7 @@ int gm20b_acr_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct
 int gp102_acr_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_acr **);
 int gp108_acr_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_acr **);
 int gp10b_acr_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_acr **);
+int gv100_acr_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_acr **);
 int tu102_acr_new(struct nvkm_device *, enum nvkm_subdev_type, int inst, struct nvkm_acr **);
 
 struct nvkm_acr_lsfw {

drivers/gpu/drm/nouveau/nvkm/core/firmware.c

@@ -22,6 +22,9 @@
 #include <core/device.h>
 #include <core/firmware.h>
 
+#include <subdev/fb.h>
+#include <subdev/mmu.h>
+
 int
 nvkm_firmware_load_name(const struct nvkm_subdev *subdev, const char *base,
 			const char *name, int ver, const struct firmware **pfw)
@@ -108,16 +111,81 @@ nvkm_firmware_put(const struct firmware *fw)
 	release_firmware(fw);
 }
 
+#define nvkm_firmware_mem(p) container_of((p), struct nvkm_firmware, mem.memory)
+
+static int
+nvkm_firmware_mem_map(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm,
+		      struct nvkm_vma *vma, void *argv, u32 argc)
+{
+	struct nvkm_firmware *fw = nvkm_firmware_mem(memory);
+	struct nvkm_vmm_map map = {
+		.memory = &fw->mem.memory,
+		.offset = offset,
+		.sgl = &fw->mem.sgl,
+	};
+
+	if (WARN_ON(fw->func->type != NVKM_FIRMWARE_IMG_DMA))
+		return -ENOSYS;
+
+	return nvkm_vmm_map(vmm, vma, argv, argc, &map);
+}
+
+static u64
+nvkm_firmware_mem_size(struct nvkm_memory *memory)
+{
+	return sg_dma_len(&nvkm_firmware_mem(memory)->mem.sgl);
+}
+
+static u64
+nvkm_firmware_mem_addr(struct nvkm_memory *memory)
+{
+	return nvkm_firmware_mem(memory)->phys;
+}
+
+static u8
+nvkm_firmware_mem_page(struct nvkm_memory *memory)
+{
+	return PAGE_SHIFT;
+}
+
+static enum nvkm_memory_target
+nvkm_firmware_mem_target(struct nvkm_memory *memory)
+{
+	return NVKM_MEM_TARGET_HOST;
+}
+
+static void *
+nvkm_firmware_mem_dtor(struct nvkm_memory *memory)
+{
+	return NULL;
+}
+
+static const struct nvkm_memory_func
+nvkm_firmware_mem = {
+	.dtor = nvkm_firmware_mem_dtor,
+	.target = nvkm_firmware_mem_target,
+	.page = nvkm_firmware_mem_page,
+	.addr = nvkm_firmware_mem_addr,
+	.size = nvkm_firmware_mem_size,
+	.map = nvkm_firmware_mem_map,
+};
+
 void
 nvkm_firmware_dtor(struct nvkm_firmware *fw)
 {
+	struct nvkm_memory *memory = &fw->mem.memory;
+
 	if (!fw->img)
 		return;
 
 	switch (fw->func->type) {
 	case NVKM_FIRMWARE_IMG_RAM:
 		kfree(fw->img);
 		break;
+	case NVKM_FIRMWARE_IMG_DMA:
+		nvkm_memory_unref(&memory);
+		dma_free_coherent(fw->device->dev, sg_dma_len(&fw->mem.sgl), fw->img, fw->phys);
+		break;
 	default:
 		WARN_ON(1);
 		break;
@@ -133,12 +201,28 @@ nvkm_firmware_ctor(const struct nvkm_firmware_func *func, const char *name,
 	fw->func = func;
 	fw->name = name;
 	fw->device = device;
+	fw->len = len;
 
 	switch (fw->func->type) {
 	case NVKM_FIRMWARE_IMG_RAM:
-		fw->len = len;
 		fw->img = kmemdup(src, fw->len, GFP_KERNEL);
 		break;
+	case NVKM_FIRMWARE_IMG_DMA: {
+		dma_addr_t addr;
+
+		len = ALIGN(fw->len, PAGE_SIZE);
+
+		fw->img = dma_alloc_coherent(fw->device->dev, len, &addr, GFP_KERNEL);
+		if (fw->img) {
+			memcpy(fw->img, src, fw->len);
+			fw->phys = addr;
+		}
+
+		sg_init_one(&fw->mem.sgl, fw->img, len);
+		sg_dma_address(&fw->mem.sgl) = fw->phys;
+		sg_dma_len(&fw->mem.sgl) = len;
+	}
+		break;
 	default:
 		WARN_ON(1);
 		return -EINVAL;
@@ -147,5 +231,6 @@ nvkm_firmware_ctor(const struct nvkm_firmware_func *func, const char *name,
 	if (!fw->img)
 		return -ENOMEM;
 
+	nvkm_memory_ctor(&nvkm_firmware_mem, &fw->mem.memory);
 	return 0;
 }

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -2364,7 +2364,7 @@ nv13b_chipset = {
 static const struct nvkm_device_chip
 nv140_chipset = {
 	.name = "GV100",
-	.acr      = { 0x00000001, gp108_acr_new },
+	.acr      = { 0x00000001, gv100_acr_new },
 	.bar      = { 0x00000001, gm107_bar_new },
 	.bios     = { 0x00000001, nvkm_bios_new },
 	.bus      = { 0x00000001, gf100_bus_new },

drivers/gpu/drm/nouveau/nvkm/engine/sec2/gp102.c

@@ -190,45 +190,6 @@ gp102_sec2_intr(struct nvkm_inth *inth)
 	return IRQ_HANDLED;
 }
 
-void
-gp102_sec2_flcn_bind_context(struct nvkm_falcon *falcon,
-			     struct nvkm_memory *ctx)
-{
-	struct nvkm_device *device = falcon->owner->device;
-
-	nvkm_falcon_v1_bind_context(falcon, ctx);
-	if (!ctx)
-		return;
-
-	/* Not sure if this is a WAR for a HW issue, or some additional
-	 * programming sequence that's needed to properly complete the
-	 * context switch we trigger above.
-	 *
-	 * Fixes unreliability of booting the SEC2 RTOS on Quadro P620,
-	 * particularly when resuming from suspend.
-	 *
-	 * Also removes the need for an odd workaround where we needed
-	 * to program SEC2's FALCON_CPUCTL_ALIAS_STARTCPU twice before
-	 * the SEC2 RTOS would begin executing.
-	 */
-	nvkm_msec(device, 10,
-		u32 irqstat = nvkm_falcon_rd32(falcon, 0x008);
-		u32 flcn0dc = nvkm_falcon_rd32(falcon, 0x0dc);
-		if ((irqstat & 0x00000008) &&
-		    (flcn0dc & 0x00007000) == 0x00005000)
-			break;
-	);
-
-	nvkm_falcon_mask(falcon, 0x004, 0x00000008, 0x00000008);
-	nvkm_falcon_mask(falcon, 0x058, 0x00000002, 0x00000002);
-
-	nvkm_msec(device, 10,
-		u32 flcn0dc = nvkm_falcon_rd32(falcon, 0x0dc);
-		if ((flcn0dc & 0x00007000) == 0x00000000)
-			break;
-	);
-}
-
 static const struct nvkm_falcon_func
 gp102_sec2_flcn = {
 	.disable = gm200_flcn_disable,
@@ -237,15 +198,13 @@ gp102_sec2_flcn = {
 	.reset_eng = gp102_flcn_reset_eng,
 	.reset_wait_mem_scrubbing = gm200_flcn_reset_wait_mem_scrubbing,
 	.debug = 0x408,
-	.fbif = 0x600,
-	.load_imem = nvkm_falcon_v1_load_imem,
-	.load_dmem = nvkm_falcon_v1_load_dmem,
-	.read_dmem = nvkm_falcon_v1_read_dmem,
+	.bind_inst = gm200_flcn_bind_inst,
+	.bind_stat = gm200_flcn_bind_stat,
+	.bind_intr = true,
+	.imem_pio = &gm200_flcn_imem_pio,
+	.dmem_pio = &gm200_flcn_dmem_pio,
 	.emem_addr = 0x01000000,
-	.bind_context = gp102_sec2_flcn_bind_context,
-	.wait_for_halt = nvkm_falcon_v1_wait_for_halt,
-	.clear_interrupt = nvkm_falcon_v1_clear_interrupt,
-	.set_start_addr = nvkm_falcon_v1_set_start_addr,
+	.emem_pio = &gp102_flcn_emem_pio,
 	.start = nvkm_falcon_v1_start,
 	.cmdq = { 0xa00, 0xa04, 8 },
 	.msgq = { 0xa30, 0xa34, 8 },