diff options
author | Jordan Crouse <jcrouse@codeaurora.org> | 2018-11-02 09:25:25 -0600 |
---|---|---|
committer | Rob Clark <robdclark@gmail.com> | 2018-12-11 13:05:30 -0500 |
commit | 1707add815519da406c2d1444a1f10ef8bb4ad5b (patch) | |
tree | de24dac0d207a864082492a014d74378b72a1f28 /drivers/gpu/drm/msm | |
parent | b9fc230252e7d0cbf109292bead71e50476f14c9 (diff) |
drm/msm/a6xx: Add a6xx gpu state
Add support for gathering and dumping the a6xx GPU state including
registers, GMU registers, indexed registers, shader blocks,
context clusters and debugbus.
v2: Fix bugs discovered by Sharat Masetty
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm')
-rw-r--r-- | drivers/gpu/drm/msm/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 25 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 39 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 8 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 1159 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h | 430 |
7 files changed, 1627 insertions, 38 deletions
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile index 5de2d8f0a7e5..fabc17bf1a58 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -14,6 +14,7 @@ msm-y := \ adreno/a6xx_gpu.o \ adreno/a6xx_gmu.o \ adreno/a6xx_hfi.o \ + adreno/a6xx_gpu_state.o \ hdmi/hdmi.o \ hdmi/hdmi_audio.o \ hdmi/hdmi_bridge.o \ diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index e816947ac7d8..c58e953fefa3 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -51,10 +51,31 @@ static irqreturn_t a6xx_hfi_irq(int irq, void *data) return IRQ_HANDLED; } +bool a6xx_gmu_sptprac_is_on(struct a6xx_gmu *gmu) +{ + u32 val; + + /* This can be called from gpu state code so make sure GMU is valid */ + if (IS_ERR_OR_NULL(gmu->mmio)) + return false; + + val = gmu_read(gmu, REG_A6XX_GMU_SPTPRAC_PWR_CLK_STATUS); + + return !(val & + (A6XX_GMU_SPTPRAC_PWR_CLK_STATUS_SPTPRAC_GDSC_POWER_OFF | + A6XX_GMU_SPTPRAC_PWR_CLK_STATUS_SP_CLOCK_OFF)); +} + /* Check to see if the GX rail is still powered */ -static bool a6xx_gmu_gx_is_on(struct a6xx_gmu *gmu) +bool a6xx_gmu_gx_is_on(struct a6xx_gmu *gmu) { - u32 val = gmu_read(gmu, REG_A6XX_GMU_SPTPRAC_PWR_CLK_STATUS); + u32 val; + + /* This can be called from gpu state code so make sure GMU is valid */ + if (IS_ERR_OR_NULL(gmu->mmio)) + return false; + + val = gmu_read(gmu, REG_A6XX_GMU_SPTPRAC_PWR_CLK_STATUS); return !(val & (A6XX_GMU_SPTPRAC_PWR_CLK_STATUS_GX_HM_GDSC_POWER_OFF | diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h index 35f765afae45..c721d9165d8e 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h @@ -164,4 +164,7 @@ void a6xx_hfi_init(struct a6xx_gmu *gmu); int a6xx_hfi_start(struct a6xx_gmu *gmu, int boot_state); void a6xx_hfi_stop(struct a6xx_gmu *gmu); +bool a6xx_gmu_gx_is_on(struct a6xx_gmu *gmu); +bool a6xx_gmu_sptprac_is_on(struct a6xx_gmu *gmu); + #endif diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index e0a918e8e969..11f0b99f94c8 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -670,33 +670,6 @@ static const u32 a6xx_register_offsets[REG_ADRENO_REGISTER_MAX] = { REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_CNTL, REG_A6XX_CP_RB_CNTL), }; -static const u32 a6xx_registers[] = { - 0x0000, 0x0002, 0x0010, 0x0010, 0x0012, 0x0012, 0x0018, 0x001b, - 0x001e, 0x0032, 0x0038, 0x003c, 0x0042, 0x0042, 0x0044, 0x0044, - 0x0047, 0x0047, 0x0056, 0x0056, 0x00ad, 0x00ae, 0x00b0, 0x00fb, - 0x0100, 0x011d, 0x0200, 0x020d, 0x0210, 0x0213, 0x0218, 0x023d, - 0x0400, 0x04f9, 0x0500, 0x0500, 0x0505, 0x050b, 0x050e, 0x0511, - 0x0533, 0x0533, 0x0540, 0x0555, 0x0800, 0x0808, 0x0810, 0x0813, - 0x0820, 0x0821, 0x0823, 0x0827, 0x0830, 0x0833, 0x0840, 0x0843, - 0x084f, 0x086f, 0x0880, 0x088a, 0x08a0, 0x08ab, 0x08c0, 0x08c4, - 0x08d0, 0x08dd, 0x08f0, 0x08f3, 0x0900, 0x0903, 0x0908, 0x0911, - 0x0928, 0x093e, 0x0942, 0x094d, 0x0980, 0x0984, 0x098d, 0x0996, - 0x0998, 0x099e, 0x09a0, 0x09a6, 0x09a8, 0x09ae, 0x09b0, 0x09b1, - 0x09c2, 0x09c8, 0x0a00, 0x0a03, 0x0c00, 0x0c04, 0x0c06, 0x0c06, - 0x0c10, 0x0cd9, 0x0e00, 0x0e0e, 0x0e10, 0x0e13, 0x0e17, 0x0e19, - 0x0e1c, 0x0e2b, 0x0e30, 0x0e32, 0x0e38, 0x0e39, 0x8600, 0x8601, - 0x8610, 0x861b, 0x8620, 0x8620, 0x8628, 0x862b, 0x8630, 0x8637, - 0x8e01, 0x8e01, 0x8e04, 0x8e05, 0x8e07, 0x8e08, 0x8e0c, 0x8e0c, - 0x8e10, 0x8e1c, 0x8e20, 0x8e25, 0x8e28, 0x8e28, 0x8e2c, 0x8e2f, - 0x8e3b, 0x8e3e, 0x8e40, 0x8e43, 0x8e50, 0x8e5e, 0x8e70, 0x8e77, - 0x9600, 0x9604, 0x9624, 0x9637, 0x9e00, 0x9e01, 0x9e03, 0x9e0e, - 0x9e11, 0x9e16, 0x9e19, 0x9e19, 0x9e1c, 0x9e1c, 0x9e20, 0x9e23, - 0x9e30, 0x9e31, 0x9e34, 0x9e34, 0x9e70, 0x9e72, 0x9e78, 0x9e79, - 0x9e80, 0x9fff, 0xa600, 0xa601, 0xa603, 0xa603, 0xa60a, 0xa60a, - 0xa610, 0xa617, 0xa630, 0xa630, - ~0 -}; - static int a6xx_pm_resume(struct msm_gpu *gpu) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); @@ -749,14 +722,6 @@ static int a6xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) return 0; } -#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP) -static void a6xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state, - struct drm_printer *p) -{ - adreno_show(gpu, state, p); -} -#endif - static struct msm_ringbuffer *a6xx_active_ring(struct msm_gpu *gpu) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); @@ -821,6 +786,8 @@ static const struct adreno_gpu_funcs funcs = { .gpu_busy = a6xx_gpu_busy, .gpu_get_freq = a6xx_gmu_get_freq, .gpu_set_freq = a6xx_gmu_set_freq, + .gpu_state_get = a6xx_gpu_state_get, + .gpu_state_put = a6xx_gpu_state_put, }, .get_timestamp = a6xx_get_timestamp, }; @@ -842,7 +809,7 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) adreno_gpu = &a6xx_gpu->base; gpu = &adreno_gpu->base; - adreno_gpu->registers = a6xx_registers; + adreno_gpu->registers = NULL; adreno_gpu->reg_offsets = a6xx_register_offsets; ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1); diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h index 4127dcebc202..528a4cfe07cd 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h @@ -56,6 +56,14 @@ void a6xx_gmu_clear_oob(struct a6xx_gmu *gmu, enum a6xx_gmu_oob_state state); int a6xx_gmu_probe(struct a6xx_gpu *a6xx_gpu, struct device_node *node); void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu); + void a6xx_gmu_set_freq(struct msm_gpu *gpu, unsigned long freq); unsigned long a6xx_gmu_get_freq(struct msm_gpu *gpu); + +void a6xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state, + struct drm_printer *p); + +struct msm_gpu_state *a6xx_gpu_state_get(struct msm_gpu *gpu); +int a6xx_gpu_state_put(struct msm_gpu_state *state); + #endif /* __A6XX_GPU_H__ */ diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c new file mode 100644 index 000000000000..20f5b914c6fb --- /dev/null +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c @@ -0,0 +1,1159 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018 The Linux Foundation. All rights reserved. */ + +#include <linux/ascii85.h> +#include "msm_gem.h" +#include "a6xx_gpu.h" +#include "a6xx_gmu.h" +#include "a6xx_gpu_state.h" +#include "a6xx_gmu.xml.h" + +struct a6xx_gpu_state_obj { + const void *handle; + u32 *data; +}; + +struct a6xx_gpu_state { + struct msm_gpu_state base; + + struct a6xx_gpu_state_obj *gmu_registers; + int nr_gmu_registers; + + struct a6xx_gpu_state_obj *registers; + int nr_registers; + + struct a6xx_gpu_state_obj *shaders; + int nr_shaders; + + struct a6xx_gpu_state_obj *clusters; + int nr_clusters; + + struct a6xx_gpu_state_obj *dbgahb_clusters; + int nr_dbgahb_clusters; + + struct a6xx_gpu_state_obj *indexed_regs; + int nr_indexed_regs; + + struct a6xx_gpu_state_obj *debugbus; + int nr_debugbus; + + struct a6xx_gpu_state_obj *vbif_debugbus; + + struct a6xx_gpu_state_obj *cx_debugbus; + int nr_cx_debugbus; +}; + +static inline int CRASHDUMP_WRITE(u64 *in, u32 reg, u32 val) +{ + in[0] = val; + in[1] = (((u64) reg) << 44 | (1 << 21) | 1); + + return 2; +} + +static inline int CRASHDUMP_READ(u64 *in, u32 reg, u32 dwords, u64 target) +{ + in[0] = target; + in[1] = (((u64) reg) << 44 | dwords); + + return 2; +} + +static inline int CRASHDUMP_FINI(u64 *in) +{ + in[0] = 0; + in[1] = 0; + + return 2; +} + +struct a6xx_crashdumper { + void *ptr; + struct drm_gem_object *bo; + u64 iova; +}; + +/* + * Allocate 1MB for the crashdumper scratch region - 8k for the script and + * the rest for the data + */ +#define A6XX_CD_DATA_OFFSET 8192 +#define A6XX_CD_DATA_SIZE (SZ_1M - 8192) + +static int a6xx_crashdumper_init(struct msm_gpu *gpu, + struct a6xx_crashdumper *dumper) +{ + dumper->ptr = msm_gem_kernel_new_locked(gpu->dev, + SZ_1M, MSM_BO_UNCACHED, gpu->aspace, + &dumper->bo, &dumper->iova); + + return IS_ERR(dumper->ptr) ? PTR_ERR(dumper->ptr) : 0; +} + +static int a6xx_crashdumper_run(struct msm_gpu *gpu, + struct a6xx_crashdumper *dumper) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + u32 val; + int ret; + + if (IS_ERR_OR_NULL(dumper->ptr)) + return -EINVAL; + + if (!a6xx_gmu_sptprac_is_on(&a6xx_gpu->gmu)) + return -EINVAL; + + /* Make sure all pending memory writes are posted */ + wmb(); + + gpu_write64(gpu, REG_A6XX_CP_CRASH_SCRIPT_BASE_LO, + REG_A6XX_CP_CRASH_SCRIPT_BASE_HI, dumper->iova); + + gpu_write(gpu, REG_A6XX_CP_CRASH_DUMP_CNTL, 1); + + ret = gpu_poll_timeout(gpu, REG_A6XX_CP_CRASH_DUMP_STATUS, val, + val & 0x02, 100, 10000); + + gpu_write(gpu, REG_A6XX_CP_CRASH_DUMP_CNTL, 0); + + return ret; +} + +static void a6xx_crashdumper_free(struct msm_gpu *gpu, + struct a6xx_crashdumper *dumper) +{ + msm_gem_put_iova(dumper->bo, gpu->aspace); + msm_gem_put_vaddr(dumper->bo); + + drm_gem_object_unreference(dumper->bo); +} + +/* read a value from the GX debug bus */ +static int debugbus_read(struct msm_gpu *gpu, u32 block, u32 offset, + u32 *data) +{ + u32 reg = A6XX_DBGC_CFG_DBGBUS_SEL_D_PING_INDEX(offset) | + A6XX_DBGC_CFG_DBGBUS_SEL_D_PING_BLK_SEL(block); + + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_SEL_A, reg); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_SEL_B, reg); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_SEL_C, reg); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_SEL_D, reg); + + /* Wait 1 us to make sure the data is flowing */ + udelay(1); + + data[0] = gpu_read(gpu, REG_A6XX_DBGC_CFG_DBGBUS_TRACE_BUF2); + data[1] = gpu_read(gpu, REG_A6XX_DBGC_CFG_DBGBUS_TRACE_BUF1); + + return 2; +} + +#define cxdbg_write(ptr, offset, val) \ + msm_writel((val), (ptr) + ((offset) << 2)) + +#define cxdbg_read(ptr, offset) \ + msm_readl((ptr) + ((offset) << 2)) + +/* read a value from the CX debug bus */ +static int cx_debugbus_read(void *__iomem cxdbg, u32 block, u32 offset, + u32 *data) +{ + u32 reg = A6XX_CX_DBGC_CFG_DBGBUS_SEL_A_PING_INDEX(offset) | + A6XX_CX_DBGC_CFG_DBGBUS_SEL_A_PING_BLK_SEL(block); + + cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_SEL_A, reg); + cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_SEL_B, reg); + cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_SEL_C, reg); + cxdbg_write(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_SEL_D, reg); + + /* Wait 1 us to make sure the data is flowing */ + udelay(1); + + data[0] = cxdbg_read(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_TRACE_BUF2); + data[1] = cxdbg_read(cxdbg, REG_A6XX_CX_DBGC_CFG_DBGBUS_TRACE_BUF1); + + return 2; +} + +/* Read a chunk of data from the VBIF debug bus */ +static int vbif_debugbus_read(struct msm_gpu *gpu, u32 ctrl0, u32 ctrl1, + u32 reg, int count, u32 *data) +{ + int i; + + gpu_write(gpu, ctrl0, reg); + + for (i = 0; i < count; i++) { + gpu_write(gpu, ctrl1, i); + data[i] = gpu_read(gpu, REG_A6XX_VBIF_TEST_BUS_OUT); + } + + return count; +} + +#define AXI_ARB_BLOCKS 2 +#define XIN_AXI_BLOCKS 5 +#define XIN_CORE_BLOCKS 4 + +#define VBIF_DEBUGBUS_BLOCK_SIZE \ + ((16 * AXI_ARB_BLOCKS) + \ + (18 * XIN_AXI_BLOCKS) + \ + (12 * XIN_CORE_BLOCKS)) + +static void a6xx_get_vbif_debugbus_block(struct msm_gpu *gpu, + struct a6xx_gpu_state_obj *obj) +{ + u32 clk, *ptr; + int i; + + obj->data = kcalloc(VBIF_DEBUGBUS_BLOCK_SIZE, sizeof(u32), GFP_KERNEL); + obj->handle = NULL; + + /* Get the current clock setting */ + clk = gpu_read(gpu, REG_A6XX_VBIF_CLKON); + + /* Force on the bus so we can read it */ + gpu_write(gpu, REG_A6XX_VBIF_CLKON, + clk | A6XX_VBIF_CLKON_FORCE_ON_TESTBUS); + + /* We will read from BUS2 first, so disable BUS1 */ + gpu_write(gpu, REG_A6XX_VBIF_TEST_BUS1_CTRL0, 0); + + /* Enable the VBIF bus for reading */ + gpu_write(gpu, REG_A6XX_VBIF_TEST_BUS_OUT_CTRL, 1); + + ptr = obj->data; + + for (i = 0; i < AXI_ARB_BLOCKS; i++) + ptr += vbif_debugbus_read(gpu, + REG_A6XX_VBIF_TEST_BUS2_CTRL0, + REG_A6XX_VBIF_TEST_BUS2_CTRL1, + 1 << (i + 16), 16, ptr); + + for (i = 0; i < XIN_AXI_BLOCKS; i++) + ptr += vbif_debugbus_read(gpu, + REG_A6XX_VBIF_TEST_BUS2_CTRL0, + REG_A6XX_VBIF_TEST_BUS2_CTRL1, + 1 << i, 18, ptr); + + /* Stop BUS2 so we can turn on BUS1 */ + gpu_write(gpu, REG_A6XX_VBIF_TEST_BUS2_CTRL0, 0); + + for (i = 0; i < XIN_CORE_BLOCKS; i++) + ptr += vbif_debugbus_read(gpu, + REG_A6XX_VBIF_TEST_BUS1_CTRL0, + REG_A6XX_VBIF_TEST_BUS1_CTRL1, + 1 << i, 12, ptr); + + /* Restore the VBIF clock setting */ + gpu_write(gpu, REG_A6XX_VBIF_CLKON, clk); +} + +static void a6xx_get_debugbus_block(struct msm_gpu *gpu, + const struct a6xx_debugbus_block *block, + struct a6xx_gpu_state_obj *obj) +{ + int i; + u32 *ptr; + + obj->data = kcalloc(block->count, sizeof(u64), GFP_KERNEL); + if (!obj->data) + return; + + obj->handle = block; + + for (ptr = obj->data, i = 0; i < block->count; i++) + ptr += debugbus_read(gpu, block->id, i, ptr); +} + +static void a6xx_get_cx_debugbus_block(void __iomem *cxdbg, + const struct a6xx_debugbus_block *block, + struct a6xx_gpu_state_obj *obj) +{ + int i; + u32 *ptr; + + obj->data = kcalloc(block->count, sizeof(u64), GFP_KERNEL); + if (!obj->data) + return; + + obj->handle = block; + + for (ptr = obj->data, i = 0; i < block->count; i++) + ptr += cx_debugbus_read(cxdbg, block->id, i, ptr); +} + +static void a6xx_get_debugbus(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state) +{ + struct resource *res; + void __iomem *cxdbg = NULL; + + /* Set up the GX debug bus */ + + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_CNTLT, + A6XX_DBGC_CFG_DBGBUS_CNTLT_SEGT(0xf)); + + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_CNTLM, + A6XX_DBGC_CFG_DBGBUS_CNTLM_ENABLE(0xf)); + + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_0, 0); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_1, 0); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_2, 0); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_3, 0); + + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_BYTEL_0, 0x76543210); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_BYTEL_1, 0xFEDCBA98); + + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_0, 0); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_1, 0); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_2, 0); + gpu_write(gpu, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_3, 0); + + /* Set up the CX debug bus - it lives elsewhere in the system so do a + * temporary ioremap for the registers + */ + res = platform_get_resource_byname(gpu->pdev, IORESOURCE_MEM, + "cx_dbgc"); + + if (res) + cxdbg = ioremap(res->start, resource_size(res)); + + if (cxdbg) { + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_CNTLT, + A6XX_DBGC_CFG_DBGBUS_CNTLT_SEGT(0xf)); + + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_CNTLM, + A6XX_DBGC_CFG_DBGBUS_CNTLM_ENABLE(0xf)); + + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_0, 0); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_1, 0); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_2, 0); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_IVTL_3, 0); + + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_BYTEL_0, + 0x76543210); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_BYTEL_1, + 0xFEDCBA98); + + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_0, 0); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_1, 0); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_2, 0); + cxdbg_write(cxdbg, REG_A6XX_DBGC_CFG_DBGBUS_MASKL_3, 0); + } + + a6xx_state->debugbus = kcalloc(ARRAY_SIZE(a6xx_debugbus_blocks), + sizeof(*a6xx_state->debugbus), GFP_KERNEL); + + if (a6xx_state->debugbus) { + int i; + + for (i = 0; i < ARRAY_SIZE(a6xx_debugbus_blocks); i++) + a6xx_get_debugbus_block(gpu, + &a6xx_debugbus_blocks[i], + &a6xx_state->debugbus[i]); + + a6xx_state->nr_debugbus = ARRAY_SIZE(a6xx_debugbus_blocks); + } + + a6xx_state->vbif_debugbus = kzalloc(sizeof(*a6xx_state->vbif_debugbus), + GFP_KERNEL); + + if (a6xx_state->vbif_debugbus) + a6xx_get_vbif_debugbus_block(gpu, a6xx_state->vbif_debugbus); + + if (cxdbg) { + a6xx_state->cx_debugbus = + kcalloc(ARRAY_SIZE(a6xx_cx_debugbus_blocks), + sizeof(*a6xx_state->cx_debugbus), GFP_KERNEL); + + if (a6xx_state->cx_debugbus) { + int i; + + for (i = 0; i < ARRAY_SIZE(a6xx_cx_debugbus_blocks); i++) + a6xx_get_cx_debugbus_block(cxdbg, + &a6xx_cx_debugbus_blocks[i], + &a6xx_state->cx_debugbus[i]); + + a6xx_state->nr_cx_debugbus = + ARRAY_SIZE(a6xx_cx_debugbus_blocks); + } + + iounmap(cxdbg); + } +} + +#define RANGE(reg, a) ((reg)[(a) + 1] - (reg)[(a)] + 1) + +/* Read a data cluster from behind the AHB aperture */ +static void a6xx_get_dbgahb_cluster(struct msm_gpu *gpu, + const struct a6xx_dbgahb_cluster *dbgahb, + struct a6xx_gpu_state_obj *obj, + struct a6xx_crashdumper *dumper) +{ + u64 *in = dumper->ptr; + u64 out = dumper->iova + A6XX_CD_DATA_OFFSET; + size_t datasize; + int i, regcount = 0; + + for (i = 0; i < A6XX_NUM_CONTEXTS; i++) { + int j; + + in += CRASHDUMP_WRITE(in, REG_A6XX_HLSQ_DBG_READ_SEL, + (dbgahb->statetype + i * 2) << 8); + + for (j = 0; j < dbgahb->count; j += 2) { + int count = RANGE(dbgahb->registers, j); + u32 offset = REG_A6XX_HLSQ_DBG_AHB_READ_APERTURE + + dbgahb->registers[j] - (dbgahb->base >> 2); + + in += CRASHDUMP_READ(in, offset, count, out); + + out += count * sizeof(u32); + + if (i == 0) + regcount += count; + } + } + + CRASHDUMP_FINI(in); + + datasize = regcount * A6XX_NUM_CONTEXTS * sizeof(u32); + + if (WARN_ON(datasize > A6XX_CD_DATA_SIZE)) + return; + + if (a6xx_crashdumper_run(gpu, dumper)) + return; + + obj->handle = dbgahb; + obj->data = kmemdup(dumper->ptr + A6XX_CD_DATA_OFFSET, + datasize, GFP_KERNEL); +} + +static void a6xx_get_dbgahb_clusters(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state, + struct a6xx_crashdumper *dumper) +{ + int i; + + a6xx_state->dbgahb_clusters = kcalloc(ARRAY_SIZE(a6xx_dbgahb_clusters), + sizeof(*a6xx_state->dbgahb_clusters), GFP_KERNEL); + + if (!a6xx_state->dbgahb_clusters) + return; + + a6xx_state->nr_dbgahb_clusters = ARRAY_SIZE(a6xx_dbgahb_clusters); + + for (i = 0; i < ARRAY_SIZE(a6xx_dbgahb_clusters); i++) + a6xx_get_dbgahb_cluster(gpu, &a6xx_dbgahb_clusters[i], + &a6xx_state->dbgahb_clusters[i], dumper); +} + +/* Read a data cluster from the CP aperture with the crashdumper */ +static void a6xx_get_cluster(struct msm_gpu *gpu, + const struct a6xx_cluster *cluster, + struct a6xx_gpu_state_obj *obj, + struct a6xx_crashdumper *dumper) +{ + u64 *in = dumper->ptr; + u64 out = dumper->iova + A6XX_CD_DATA_OFFSET; + size_t datasize; + int i, regcount = 0; + + /* Some clusters need a selector register to be programmed too */ + if (cluster->sel_reg) + in += CRASHDUMP_WRITE(in, cluster->sel_reg, cluster->sel_val); + + for (i = 0; i < A6XX_NUM_CONTEXTS; i++) { + int j; + + in += CRASHDUMP_WRITE(in, REG_A6XX_CP_APERTURE_CNTL_CD, + (cluster->id << 8) | (i << 4) | i); + + for (j = 0; j < cluster->count; j += 2) { + int count = RANGE(cluster->registers, j); + + in += CRASHDUMP_READ(in, cluster->registers[j], + count, out); + + out += count * sizeof(u32); + + if (i == 0) + regcount += count; + } + } + + CRASHDUMP_FINI(in); + + datasize = regcount * A6XX_NUM_CONTEXTS * sizeof(u32); + + if (WARN_ON(datasize > A6XX_CD_DATA_SIZE)) + return; + + if (a6xx_crashdumper_run(gpu, dumper)) + return; + + obj->handle = cluster; + obj->data = kmemdup(dumper->ptr + A6XX_CD_DATA_OFFSET, + datasize, GFP_KERNEL); +} + +static void a6xx_get_clusters(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state, + struct a6xx_crashdumper *dumper) +{ + int i; + + a6xx_state->clusters = kcalloc(ARRAY_SIZE(a6xx_clusters), + sizeof(*a6xx_state->clusters), GFP_KERNEL); + + if (!a6xx_state->clusters) + return; + + a6xx_state->nr_clusters = ARRAY_SIZE(a6xx_clusters); + + for (i = 0; i < ARRAY_SIZE(a6xx_clusters); i++) + a6xx_get_cluster(gpu, &a6xx_clusters[i], + &a6xx_state->clusters[i], dumper); +} + +/* Read a shader / debug block from the HLSQ aperture with the crashdumper */ +static void a6xx_get_shader_block(struct msm_gpu *gpu, + const struct a6xx_shader_block *block, + struct a6xx_gpu_state_obj *obj, + struct a6xx_crashdumper *dumper) +{ + u64 *in = dumper->ptr; + size_t datasize = block->size * A6XX_NUM_SHADER_BANKS * sizeof(u32); + int i; + + if (WARN_ON(datasize > A6XX_CD_DATA_SIZE)) + return; + + for (i = 0; i < A6XX_NUM_SHADER_BANKS; i++) { + in += CRASHDUMP_WRITE(in, REG_A6XX_HLSQ_DBG_READ_SEL, + (block->type << 8) | i); + + in += CRASHDUMP_READ(in, REG_A6XX_HLSQ_DBG_AHB_READ_APERTURE, + block->size, dumper->iova + A6XX_CD_DATA_OFFSET); + } + + CRASHDUMP_FINI(in); + + if (a6xx_crashdumper_run(gpu, dumper)) + return; + + obj->handle = block; + obj->data = kmemdup(dumper->ptr + A6XX_CD_DATA_OFFSET, + datasize, GFP_KERNEL); +} + +static void a6xx_get_shaders(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state, + struct a6xx_crashdumper *dumper) +{ + int i; + + a6xx_state->shaders = kcalloc(ARRAY_SIZE(a6xx_shader_blocks), + sizeof(*a6xx_state->shaders), GFP_KERNEL); + + if (!a6xx_state->shaders) + return; + + a6xx_state->nr_shaders = ARRAY_SIZE(a6xx_shader_blocks); + + for (i = 0; i < ARRAY_SIZE(a6xx_shader_blocks); i++) + a6xx_get_shader_block(gpu, &a6xx_shader_blocks[i], + &a6xx_state->shaders[i], dumper); +} + +/* Read registers from behind the HLSQ aperture with the crashdumper */ +static void a6xx_get_crashdumper_hlsq_registers(struct msm_gpu *gpu, + const struct a6xx_registers *regs, + struct a6xx_gpu_state_obj *obj, + struct a6xx_crashdumper *dumper) + +{ + u64 *in = dumper->ptr; + u64 out = dumper->iova + A6XX_CD_DATA_OFFSET; + int i, regcount = 0; + + in += CRASHDUMP_WRITE(in, REG_A6XX_HLSQ_DBG_READ_SEL, regs->val1); + + for (i = 0; i < regs->count; i += 2) { + u32 count = RANGE(regs->registers, i); + u32 offset = REG_A6XX_HLSQ_DBG_AHB_READ_APERTURE + + regs->registers[i] - (regs->val0 >> 2); + + in += CRASHDUMP_READ(in, offset, count, out); + + out += count * sizeof(u32); + regcount += count; + } + + CRASHDUMP_FINI(in); + + if (WARN_ON((regcount * sizeof(u32)) > A6XX_CD_DATA_SIZE)) + return; + + if (a6xx_crashdumper_run(gpu, dumper)) + return; + + obj->handle = regs; + obj->data = kmemdup(dumper->ptr + A6XX_CD_DATA_OFFSET, + regcount * sizeof(u32), GFP_KERNEL); +} + +/* Read a block of registers using the crashdumper */ +static void a6xx_get_crashdumper_registers(struct msm_gpu *gpu, + const struct a6xx_registers *regs, + struct a6xx_gpu_state_obj *obj, + struct a6xx_crashdumper *dumper) + +{ + u64 *in = dumper->ptr; + u64 out = dumper->iova + A6XX_CD_DATA_OFFSET; + int i, regcount = 0; + + /* Some blocks might need to program a selector register first */ + if (regs->val0) + in += CRASHDUMP_WRITE(in, regs->val0, regs->val1); + + for (i = 0; i < regs->count; i += 2) { + u32 count = RANGE(regs->registers, i); + + in += CRASHDUMP_READ(in, regs->registers[i], count, out); + + out += count * sizeof(u32); + regcount += count; + } + + CRASHDUMP_FINI(in); + + if (WARN_ON((regcount * sizeof(u32)) > A6XX_CD_DATA_SIZE)) + return; + + if (a6xx_crashdumper_run(gpu, dumper)) + return; + + obj->handle = regs; + obj->data = kmemdup(dumper->ptr + A6XX_CD_DATA_OFFSET, + regcount * sizeof(u32), GFP_KERNEL); +} + +/* Read a block of registers via AHB */ +static void a6xx_get_ahb_gpu_registers(struct msm_gpu *gpu, + const struct a6xx_registers *regs, + struct a6xx_gpu_state_obj *obj) +{ + int i, regcount = 0, index = 0; + + for (i = 0; i < regs->count; i += 2) + regcount += RANGE(regs->registers, i); + + obj->handle = (const void *) regs; + obj->data = kcalloc(regcount, sizeof(u32), GFP_KERNEL); + if (!obj->data) + return; + + for (i = 0; i < regs->count; i += 2) { + u32 count = RANGE(regs->registers, i); + int j; + + for (j = 0; j < count; j++) + obj->data[index++] = gpu_read(gpu, + regs->registers[i] + j); + } +} + +/* Read a block of GMU registers */ +static void _a6xx_get_gmu_registers(struct msm_gpu *gpu, + const struct a6xx_registers *regs, + struct a6xx_gpu_state_obj *obj) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + struct a6xx_gmu *gmu = &a6xx_gpu->gmu; + int i, regcount = 0, index = 0; + + for (i = 0; i < regs->count; i += 2) + regcount += RANGE(regs->registers, i); + + obj->handle = (const void *) regs; + obj->data = kcalloc(regcount, sizeof(u32), GFP_KERNEL); + if (!obj->data) + return; + + for (i = 0; i < regs->count; i += 2) { + u32 count = RANGE(regs->registers, i); + int j; + + for (j = 0; j < count; j++) + obj->data[index++] = gmu_read(gmu, + regs->registers[i] + j); + } +} + +static void a6xx_get_gmu_registers(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + a6xx_state->gmu_registers = kcalloc(2, + sizeof(*a6xx_state->gmu_registers), GFP_KERNEL); + + if (!a6xx_state->gmu_registers) + return; + + a6xx_state->nr_gmu_registers = 2; + + /* Get the CX GMU registers from AHB */ + _a6xx_get_gmu_registers(gpu, &a6xx_gmu_reglist[0], + &a6xx_state->gmu_registers[0]); + + if (!a6xx_gmu_gx_is_on(&a6xx_gpu->gmu)) + return; + + /* Set the fence to ALLOW mode so we can access the registers */ + gpu_write(gpu, REG_A6XX_GMU_AO_AHB_FENCE_CTRL, 0); + + _a6xx_get_gmu_registers(gpu, &a6xx_gmu_reglist[1], + &a6xx_state->gmu_registers[1]); +} + +static void a6xx_get_registers(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state, + struct a6xx_crashdumper *dumper) +{ + int i, count = ARRAY_SIZE(a6xx_ahb_reglist) + + ARRAY_SIZE(a6xx_reglist) + + ARRAY_SIZE(a6xx_hlsq_reglist); + int index = 0; + + a6xx_state->registers = kcalloc(count, sizeof(*a6xx_state->registers), + GFP_KERNEL); + + if (!a6xx_state->registers) + return; + + a6xx_state->nr_registers = count; + + for (i = 0; i < ARRAY_SIZE(a6xx_ahb_reglist); i++) + a6xx_get_ahb_gpu_registers(gpu, + &a6xx_ahb_reglist[i], + &a6xx_state->registers[index++]); + + for (i = 0; i < ARRAY_SIZE(a6xx_reglist); i++) + a6xx_get_crashdumper_registers(gpu, + &a6xx_reglist[i], + &a6xx_state->registers[index++], + dumper); + + for (i = 0; i < ARRAY_SIZE(a6xx_hlsq_reglist); i++) + a6xx_get_crashdumper_hlsq_registers(gpu, + &a6xx_hlsq_reglist[i], + &a6xx_state->registers[index++], + dumper); +} + +/* Read a block of data from an indexed register pair */ +static void a6xx_get_indexed_regs(struct msm_gpu *gpu, + const struct a6xx_indexed_registers *indexed, + struct a6xx_gpu_state_obj *obj) +{ + int i; + + obj->handle = (const void *) indexed; + obj->data = kcalloc(indexed->count, sizeof(u32), GFP_KERNEL); + if (!obj->data) + return; + + /* All the indexed banks start at address 0 */ + gpu_write(gpu, indexed->addr, 0); + + /* Read the data - each read increments the internal address by 1 */ + for (i = 0; i < indexed->count; i++) + obj->data[i] = gpu_read(gpu, indexed->data); +} + +static void a6xx_get_indexed_registers(struct msm_gpu *gpu, + struct a6xx_gpu_state *a6xx_state) +{ + u32 mempool_size; + int count = ARRAY_SIZE(a6xx_indexed_reglist) + 1; + int i; + + a6xx_state->indexed_regs = kcalloc(count, + sizeof(a6xx_state->indexed_regs), GFP_KERNEL); + if (!a6xx_state->indexed_regs) + return; + + for (i = 0; i < ARRAY_SIZE(a6xx_indexed_reglist); i++) + a6xx_get_indexed_regs(gpu, &a6xx_indexed_reglist[i], + &a6xx_state->indexed_regs[i]); + + /* Set the CP mempool size to 0 to stabilize it while dumping */ + mempool_size = gpu_read(gpu, REG_A6XX_CP_MEM_POOL_SIZE); + gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 0); + + /* Get the contents of the CP mempool */ + a6xx_get_indexed_regs(gpu, &a6xx_cp_mempool_indexed, + &a6xx_state->indexed_regs[i]); + + /* + * Offset 0x2000 in the mempool is the size - copy the saved size over + * so the data is consistent + */ + a6xx_state->indexed_regs[i].data[0x2000] = mempool_size; + + /* Restore the size in the hardware */ + gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, mempool_size); + + a6xx_state->nr_indexed_regs = count; +} + +struct msm_gpu_state *a6xx_gpu_state_get(struct msm_gpu *gpu) +{ + struct a6xx_crashdumper dumper = { 0 }; + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + struct a6xx_gpu_state *a6xx_state = kzalloc(sizeof(*a6xx_state), + GFP_KERNEL); + + if (!a6xx_state) + return ERR_PTR(-ENOMEM); + + /* Get the generic state from the adreno core */ + adreno_gpu_state_get(gpu, &a6xx_state->base); + + a6xx_get_gmu_registers(gpu, a6xx_state); + + /* If GX isn't on the rest of the data isn't going to be accessible */ + if (!a6xx_gmu_gx_is_on(&a6xx_gpu->gmu)) + return &a6xx_state->base; + + /* Get the banks of indexed registers */ + a6xx_get_indexed_registers(gpu, a6xx_state); + + /* Try to initialize the crashdumper */ + if (!a6xx_crashdumper_init(gpu, &dumper)) { + a6xx_get_registers(gpu, a6xx_state, &dumper); + a6xx_get_shaders(gpu, a6xx_state, &dumper); + a6xx_get_clusters(gpu, a6xx_state, &dumper); + a6xx_get_dbgahb_clusters(gpu, a6xx_state, &dumper); + + a6xx_crashdumper_free(gpu, &dumper); + } + + a6xx_get_debugbus(gpu, a6xx_state); + + return &a6xx_state->base; +} + +void a6xx_gpu_state_destroy(struct kref *kref) +{ + struct msm_gpu_state *state = container_of(kref, + struct msm_gpu_state, ref); + struct a6xx_gpu_state *a6xx_state = container_of(state, + struct a6xx_gpu_state, base); + int i; + + for (i = 0; i < a6xx_state->nr_gmu_registers; i++) + kfree(a6xx_state->gmu_registers[i].data); + + kfree(a6xx_state->gmu_registers); + + for (i = 0; i < a6xx_state->nr_registers; i++) + kfree(a6xx_state->registers[i].data); + + kfree(a6xx_state->registers); + + for (i = 0; i < a6xx_state->nr_shaders; i++) + kfree(a6xx_state->shaders[i].data); + + kfree(a6xx_state->shaders); + + for (i = 0; i < a6xx_state->nr_clusters; i++) + kfree(a6xx_state->clusters[i].data); + + kfree(a6xx_state->clusters); + + for (i = 0; i < a6xx_state->nr_dbgahb_clusters; i++) + kfree(a6xx_state->dbgahb_clusters[i].data); + + kfree(a6xx_state->dbgahb_clusters); + + for (i = 0; i < a6xx_state->nr_indexed_regs; i++) + kfree(a6xx_state->indexed_regs[i].data); + + kfree(a6xx_state->indexed_regs); + + for (i = 0; i < a6xx_state->nr_debugbus; i++) + kfree(a6xx_state->debugbus[i].data); + + kfree(a6xx_state->debugbus); + + if (a6xx_state->vbif_debugbus) + kfree(a6xx_state->vbif_debugbus->data); + + kfree(a6xx_state->vbif_debugbus); + + for (i = 0; i < a6xx_state->nr_cx_debugbus; i++) + kfree(a6xx_state->cx_debugbus[i].data); + + kfree(a6xx_state->cx_debugbus); + + adreno_gpu_state_destroy(state); + kfree(a6xx_state); +} + +int a6xx_gpu_state_put(struct msm_gpu_state *state) +{ + if (IS_ERR_OR_NULL(state)) + return 1; + + return kref_put(&state->ref, a6xx_gpu_state_destroy); +} + +static void a6xx_show_registers(const u32 *registers, u32 *data, size_t count, + struct drm_printer *p) +{ + int i, index = 0; + + if (!data) |