diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a3xx_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c new file mode 100644 index 000000000..5c068301d --- /dev/null +++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c @@ -0,0 +1,541 @@ +/* + * Copyright (C) 2013 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + * + * Copyright (c) 2014 The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifdef CONFIG_MSM_OCMEM +# include <mach/ocmem.h> +#endif + +#include "a3xx_gpu.h" + +#define A3XX_INT0_MASK \ + (A3XX_INT0_RBBM_AHB_ERROR | \ + A3XX_INT0_RBBM_ATB_BUS_OVERFLOW | \ + A3XX_INT0_CP_T0_PACKET_IN_IB | \ + A3XX_INT0_CP_OPCODE_ERROR | \ + A3XX_INT0_CP_RESERVED_BIT_ERROR | \ + A3XX_INT0_CP_HW_FAULT | \ + A3XX_INT0_CP_IB1_INT | \ + A3XX_INT0_CP_IB2_INT | \ + A3XX_INT0_CP_RB_INT | \ + A3XX_INT0_CP_REG_PROTECT_FAULT | \ + A3XX_INT0_CP_AHB_ERROR_HALT | \ + A3XX_INT0_CACHE_FLUSH_TS | \ + A3XX_INT0_UCHE_OOB_ACCESS) + +extern bool hang_debug; + +static void a3xx_dump(struct msm_gpu *gpu); +static bool a3xx_idle(struct msm_gpu *gpu); + +static bool a3xx_me_init(struct msm_gpu *gpu) +{ + struct msm_ringbuffer *ring = gpu->rb[0]; + + OUT_PKT3(ring, CP_ME_INIT, 17); + OUT_RING(ring, 0x000003f7); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000080); + OUT_RING(ring, 0x00000100); + OUT_RING(ring, 0x00000180); + OUT_RING(ring, 0x00006600); + OUT_RING(ring, 0x00000150); + OUT_RING(ring, 0x0000014e); + OUT_RING(ring, 0x00000154); + OUT_RING(ring, 0x00000001); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + + gpu->funcs->flush(gpu, ring); + return a3xx_idle(gpu); +} + +static int a3xx_hw_init(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu); + uint32_t *ptr, len; + int i, ret; + + DBG("%s", gpu->name); + + if (adreno_is_a305(adreno_gpu)) { + /* Set up 16 deep read/write request queues: */ + gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); + gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x10101010); + /* Enable WR-REQ: */ + gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x0000ff); + /* Set up round robin arbitration between both AXI ports: */ + gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030); + /* Set up AOOO: */ + gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c); + gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c); + } else if (adreno_is_a306(adreno_gpu)) { + gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003); + gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x0000000a); + gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x0000000a); + } else if (adreno_is_a320(adreno_gpu)) { + /* Set up 16 deep read/write request queues: */ + gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); + gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x10101010); + gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x10101010); + /* Enable WR-REQ: */ + gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x0000ff); + /* Set up round robin arbitration between both AXI ports: */ + gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030); + /* Set up AOOO: */ + gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c); + gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c); + /* Enable 1K sort: */ + gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x000000ff); + gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4); + + } else if (adreno_is_a330v2(adreno_gpu)) { + /* + * Most of the VBIF registers on 8974v2 have the correct + * values at power on, so we won't modify those if we don't + * need to + */ + /* Enable 1k sort: */ + gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x0001003f); + gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4); + /* Enable WR-REQ: */ + gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x00003f); + gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); + /* Set up VBIF_ROUND_ROBIN_QOS_ARB: */ + gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003); + + } else if (adreno_is_a330(adreno_gpu)) { + /* Set up 16 deep read/write request queues: */ + gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x18181818); + gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF1, 0x18181818); + gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x18181818); + gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x18181818); + gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x0000303); + gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x18181818); + gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF1, 0x18181818); + /* Enable WR-REQ: */ + gpu_write(gpu, REG_A3XX_VBIF_GATE_OFF_WRREQ_EN, 0x00003f); + /* Set up round robin arbitration between both AXI ports: */ + gpu_write(gpu, REG_A3XX_VBIF_ARB_CTL, 0x00000030); + /* Set up VBIF_ROUND_ROBIN_QOS_ARB: */ + gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0001); + /* Set up AOOO: */ + gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003f); + gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003f003f); + /* Enable 1K sort: */ + gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT, 0x0001003f); + gpu_write(gpu, REG_A3XX_VBIF_ABIT_SORT_CONF, 0x000000a4); + /* Disable VBIF clock gating. This is to enable AXI running + * higher frequency than GPU: + */ + gpu_write(gpu, REG_A3XX_VBIF_CLKON, 0x00000001); + + } else { + BUG(); + } + + /* Make all blocks contribute to the GPU BUSY perf counter: */ + gpu_write(gpu, REG_A3XX_RBBM_GPU_BUSY_MASKED, 0xffffffff); + + /* Tune the hystersis counters for SP and CP idle detection: */ + gpu_write(gpu, REG_A3XX_RBBM_SP_HYST_CNT, 0x10); + gpu_write(gpu, REG_A3XX_RBBM_WAIT_IDLE_CLOCKS_CTL, 0x10); + + /* Enable the RBBM error reporting bits. This lets us get + * useful information on failure: + */ + gpu_write(gpu, REG_A3XX_RBBM_AHB_CTL0, 0x00000001); + + /* Enable AHB error reporting: */ + gpu_write(gpu, REG_A3XX_RBBM_AHB_CTL1, 0xa6ffffff); + + /* Turn on the power counters: */ + gpu_write(gpu, REG_A3XX_RBBM_RBBM_CTL, 0x00030000); + + /* Turn on hang detection - this spews a lot of useful information + * into the RBBM registers on a hang: + */ + gpu_write(gpu, REG_A3XX_RBBM_INTERFACE_HANG_INT_CTL, 0x00010fff); + + /* Enable 64-byte cacheline size. HW Default is 32-byte (0x000000E0): */ + gpu_write(gpu, REG_A3XX_UCHE_CACHE_MODE_CONTROL_REG, 0x00000001); + + /* Enable Clock gating: */ + if (adreno_is_a306(adreno_gpu)) + gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xaaaaaaaa); + else if (adreno_is_a320(adreno_gpu)) + gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbfffffff); + else if (adreno_is_a330v2(adreno_gpu)) + gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xaaaaaaaa); + else if (adreno_is_a330(adreno_gpu)) + gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbffcffff); + + if (adreno_is_a330v2(adreno_gpu)) + gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x05515455); + else if (adreno_is_a330(adreno_gpu)) + gpu_write(gpu, REG_A3XX_RBBM_GPR0_CTL, 0x00000000); + + /* Set the OCMEM base address for A330, etc */ + if (a3xx_gpu->ocmem_hdl) { + gpu_write(gpu, REG_A3XX_RB_GMEM_BASE_ADDR, + (unsigned int)(a3xx_gpu->ocmem_base >> 14)); + } + + /* Turn on performance counters: */ + gpu_write(gpu, REG_A3XX_RBBM_PERFCTR_CTL, 0x01); + + /* Enable the perfcntrs that we use.. */ + for (i = 0; i < gpu->num_perfcntrs; i++) { + const struct msm_gpu_perfcntr *perfcntr = &gpu->perfcntrs[i]; + gpu_write(gpu, perfcntr->select_reg, perfcntr->select_val); + } + + gpu_write(gpu, REG_A3XX_RBBM_INT_0_MASK, A3XX_INT0_MASK); + + ret = adreno_hw_init(gpu); + if (ret) + return ret; + + /* setup access protection: */ + gpu_write(gpu, REG_A3XX_CP_PROTECT_CTRL, 0x00000007); + + /* RBBM registers */ + gpu_write(gpu, REG_A3XX_CP_PROTECT(0), 0x63000040); + gpu_write(gpu, REG_A3XX_CP_PROTECT(1), 0x62000080); + gpu_write(gpu, REG_A3XX_CP_PROTECT(2), 0x600000cc); + gpu_write(gpu, REG_A3XX_CP_PROTECT(3), 0x60000108); + gpu_write(gpu, REG_A3XX_CP_PROTECT(4), 0x64000140); + gpu_write(gpu, REG_A3XX_CP_PROTECT(5), 0x66000400); + + /* CP registers */ + gpu_write(gpu, REG_A3XX_CP_PROTECT(6), 0x65000700); + gpu_write(gpu, REG_A3XX_CP_PROTECT(7), 0x610007d8); + gpu_write(gpu, REG_A3XX_CP_PROTECT(8), 0x620007e0); + gpu_write(gpu, REG_A3XX_CP_PROTECT(9), 0x61001178); + gpu_write(gpu, REG_A3XX_CP_PROTECT(10), 0x64001180); + + /* RB registers */ + gpu_write(gpu, REG_A3XX_CP_PROTECT(11), 0x60003300); + + /* VBIF registers */ + gpu_write(gpu, REG_A3XX_CP_PROTECT(12), 0x6b00c000); + + /* NOTE: PM4/micro-engine firmware registers look to be the same + * for a2xx and a3xx.. we could possibly push that part down to + * adreno_gpu base class. Or push both PM4 and PFP but + * parameterize the pfp ucode addr/data registers.. + */ + + /* Load PM4: */ + ptr = (uint32_t *)(adreno_gpu->fw[ADRENO_FW_PM4]->data); + len = adreno_gpu->fw[ADRENO_FW_PM4]->size / 4; + DBG("loading PM4 ucode version: %x", ptr[1]); + + gpu_write(gpu, REG_AXXX_CP_DEBUG, + AXXX_CP_DEBUG_DYNAMIC_CLK_DISABLE | + AXXX_CP_DEBUG_MIU_128BIT_WRITE_ENABLE); + gpu_write(gpu, REG_AXXX_CP_ME_RAM_WADDR, 0); + for (i = 1; i < len; i++) + gpu_write(gpu, REG_AXXX_CP_ME_RAM_DATA, ptr[i]); + + /* Load PFP: */ + ptr = (uint32_t *)(adreno_gpu->fw[ADRENO_FW_PFP]->data); + len = adreno_gpu->fw[ADRENO_FW_PFP]->size / 4; + DBG("loading PFP ucode version: %x", ptr[5]); + + gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_ADDR, 0); + for (i = 1; i < len; i++) + gpu_write(gpu, REG_A3XX_CP_PFP_UCODE_DATA, ptr[i]); + + /* CP ROQ queue sizes (bytes) - RB:16, ST:16, IB1:32, IB2:64 */ + if (adreno_is_a305(adreno_gpu) || adreno_is_a306(adreno_gpu) || + adreno_is_a320(adreno_gpu)) { + gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS, + AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB1_START(2) | + AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB2_START(6) | + AXXX_CP_QUEUE_THRESHOLDS_CSQ_ST_START(14)); + } else if (adreno_is_a330(adreno_gpu)) { + /* NOTE: this (value take from downstream android driver) + * includes some bits outside of the known bitfields. But + * A330 has this "MERCIU queue" thing too, which might + * explain a new bitfield or reshuffling: + */ + gpu_write(gpu, REG_AXXX_CP_QUEUE_THRESHOLDS, 0x003e2008); + } + + /* clear ME_HALT to start micro engine */ + gpu_write(gpu, REG_AXXX_CP_ME_CNTL, 0); + + return a3xx_me_init(gpu) ? 0 : -EINVAL; +} + +static void a3xx_recover(struct msm_gpu *gpu) +{ + int i; + + adreno_dump_info(gpu); + + for (i = 0; i < 8; i++) { + printk("CP_SCRATCH_REG%d: %u\n", i, + gpu_read(gpu, REG_AXXX_CP_SCRATCH_REG0 + i)); + } + + /* dump registers before resetting gpu, if enabled: */ + if (hang_debug) + a3xx_dump(gpu); + + gpu_write(gpu, REG_A3XX_RBBM_SW_RESET_CMD, 1); + gpu_read(gpu, REG_A3XX_RBBM_SW_RESET_CMD); + gpu_write(gpu, REG_A3XX_RBBM_SW_RESET_CMD, 0); + adreno_recover(gpu); +} + +static void a3xx_destroy(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a3xx_gpu *a3xx_gpu = to_a3xx_gpu(adreno_gpu); + + DBG("%s", gpu->name); + + adreno_gpu_cleanup(adreno_gpu); + +#ifdef CONFIG_MSM_OCMEM + if (a3xx_gpu->ocmem_base) + ocmem_free(OCMEM_GRAPHICS, a3xx_gpu->ocmem_hdl); +#endif + + kfree(a3xx_gpu); +} + +static bool a3xx_idle(struct msm_gpu *gpu) +{ + /* wait for ringbuffer to drain: */ + if (!adreno_idle(gpu, gpu->rb[0])) + return false; + + /* then wait for GPU to finish: */ + if (spin_until(!(gpu_read(gpu, REG_A3XX_RBBM_STATUS) & + A3XX_RBBM_STATUS_GPU_BUSY))) { + DRM_ERROR("%s: timeout waiting for GPU to idle!\n", gpu->name); + + /* TODO maybe we need to reset GPU here to recover from hang? */ + return false; + } + + return true; +} + +static irqreturn_t a3xx_irq(struct msm_gpu *gpu) +{ + uint32_t status; + + status = gpu_read(gpu, REG_A3XX_RBBM_INT_0_STATUS); + DBG("%s: %08x", gpu->name, status); + + // TODO + + gpu_write(gpu, REG_A3XX_RBBM_INT_CLEAR_CMD, status); + + msm_gpu_retire(gpu); + + return IRQ_HANDLED; +} + +static const unsigned int a3xx_registers[] = { + 0x0000, 0x0002, 0x0010, 0x0012, 0x0018, 0x0018, 0x0020, 0x0027, + 0x0029, 0x002b, 0x002e, 0x0033, 0x0040, 0x0042, 0x0050, 0x005c, + 0x0060, 0x006c, 0x0080, 0x0082, 0x0084, 0x0088, 0x0090, 0x00e5, + 0x00ea, 0x00ed, 0x0100, 0x0100, 0x0110, 0x0123, 0x01c0, 0x01c1, + 0x01c3, 0x01c5, 0x01c7, 0x01c7, 0x01d5, 0x01d9, 0x01dc, 0x01dd, + 0x01ea, 0x01ea, 0x01ee, 0x01f1, 0x01f5, 0x01f5, 0x01fc, 0x01ff, + 0x0440, 0x0440, 0x0443, 0x0443, 0x0445, 0x0445, 0x044d, 0x044f, + 0x0452, 0x0452, 0x0454, 0x046f, 0x047c, 0x047c, 0x047f, 0x047f, + 0x0578, 0x057f, 0x0600, 0x0602, 0x0605, 0x0607, 0x060a, 0x060e, + 0x0612, 0x0614, 0x0c01, 0x0c02, 0x0c06, 0x0c1d, 0x0c3d, 0x0c3f, + 0x0c48, 0x0c4b, 0x0c80, 0x0c80, 0x0c88, 0x0c8b, 0x0ca0, 0x0cb7, + 0x0cc0, 0x0cc1, 0x0cc6, 0x0cc7, 0x0ce4, 0x0ce5, 0x0e00, 0x0e05, + 0x0e0c, 0x0e0c, 0x0e22, 0x0e23, 0x0e41, 0x0e45, 0x0e64, 0x0e65, + 0x0e80, 0x0e82, 0x0e84, 0x0e89, 0x0ea0, 0x0ea1, 0x0ea4, 0x0ea7, + 0x0ec4, 0x0ecb, 0x0ee0, 0x0ee0, 0x0f00, 0x0f01, 0x0f03, 0x0f09, + 0x2040, 0x2040, 0x2044, 0x2044, 0x2048, 0x204d, 0x2068, 0x2069, + 0x206c, 0x206d, 0x2070, 0x2070, 0x2072, 0x2072, 0x2074, 0x2075, + 0x2079, 0x207a, 0x20c0, 0x20d3, 0x20e4, 0x20ef, 0x2100, 0x2109, + 0x210c, 0x210c, 0x210e, 0x210e, 0x2110, 0x2111, 0x2114, 0x2115, + 0x21e4, 0x21e4, 0x21ea, 0x21ea, 0x21ec, 0x21ed, 0x21f0, 0x21f0, + 0x2200, 0x2212, 0x2214, 0x2217, 0x221a, 0x221a, 0x2240, 0x227e, + 0x2280, 0x228b, 0x22c0, 0x22c0, 0x22c4, 0x22ce, 0x22d0, 0x22d8, + 0x22df, 0x22e6, 0x22e8, 0x22e9, 0x22ec, 0x22ec, 0x22f0, 0x22f7, + 0x22ff, 0x22ff, 0x2340, 0x2343, 0x2440, 0x2440, 0x2444, 0x2444, + 0x2448, 0x244d, 0x2468, 0x2469, 0x246c, 0x246d, 0x2470, 0x2470, + 0x2472, 0x2472, 0x2474, 0x2475, 0x2479, 0x247a, 0x24c0, 0x24d3, + 0x24e4, 0x24ef, 0x2500, 0x2509, 0x250c, 0x250c, 0x250e, 0x250e, + 0x2510, 0x2511, 0x2514, 0x2515, 0x25e4, 0x25e4, 0x25ea, 0x25ea, + 0x25ec, 0x25ed, 0x25f0, 0x25f0, 0x2600, 0x2612, 0x2614, 0x2617, + 0x261a, 0x261a, 0x2640, 0x267e, 0x2680, 0x268b, 0x26c0, 0x26c0, + 0x26c4, 0x26ce, 0x26d0, 0x26d8, 0x26df, 0x26e6, 0x26e8, 0x26e9, + 0x26ec, 0x26ec, 0x26f0, 0x26f7, 0x26ff, 0x26ff, 0x2740, 0x2743, + 0x300c, 0x300e, 0x301c, 0x301d, 0x302a, 0x302a, 0x302c, 0x302d, + 0x3030, 0x3031, 0x3034, 0x3036, 0x303c, 0x303c, 0x305e, 0x305f, + ~0 /* sentinel */ +}; + +/* would be nice to not have to duplicate the _show() stuff with printk(): */ +static void a3xx_dump(struct msm_gpu *gpu) +{ + printk("status: %08x\n", + gpu_read(gpu, REG_A3XX_RBBM_STATUS)); + adreno_dump(gpu); +} + +static struct msm_gpu_state *a3xx_gpu_state_get(struct msm_gpu *gpu) +{ + struct msm_gpu_state *state = kzalloc(sizeof(*state), GFP_KERNEL); + + if (!state) + return ERR_PTR(-ENOMEM); + + adreno_gpu_state_get(gpu, state); + + state->rbbm_status = gpu_read(gpu, REG_A3XX_RBBM_STATUS); + + return state; +} + +/* Register offset defines for A3XX */ +static const unsigned int a3xx_register_offsets[REG_ADRENO_REGISTER_MAX] = { + REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_BASE, REG_AXXX_CP_RB_BASE), + REG_ADRENO_SKIP(REG_ADRENO_CP_RB_BASE_HI), + REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_RPTR_ADDR, REG_AXXX_CP_RB_RPTR_ADDR), + REG_ADRENO_SKIP(REG_ADRENO_CP_RB_RPTR_ADDR_HI), + REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_RPTR, REG_AXXX_CP_RB_RPTR), + REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_WPTR, REG_AXXX_CP_RB_WPTR), + REG_ADRENO_DEFINE(REG_ADRENO_CP_RB_CNTL, REG_AXXX_CP_RB_CNTL), +}; + +static const struct adreno_gpu_funcs funcs = { + .base = { + .get_param = adreno_get_param, + .hw_init = a3xx_hw_init, + .pm_suspend = msm_gpu_pm_suspend, + .pm_resume = msm_gpu_pm_resume, + .recover = a3xx_recover, + .submit = adreno_submit, + .flush = adreno_flush, + .active_ring = adreno_active_ring, + .irq = a3xx_irq, + .destroy = a3xx_destroy, +#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP) + .show = adreno_show, +#endif + .gpu_state_get = a3xx_gpu_state_get, + .gpu_state_put = adreno_gpu_state_put, + }, +}; + +static const struct msm_gpu_perfcntr perfcntrs[] = { + { REG_A3XX_SP_PERFCOUNTER6_SELECT, REG_A3XX_RBBM_PERFCTR_SP_6_LO, + SP_ALU_ACTIVE_CYCLES, "ALUACTIVE" }, + { REG_A3XX_SP_PERFCOUNTER7_SELECT, REG_A3XX_RBBM_PERFCTR_SP_7_LO, + SP_FS_FULL_ALU_INSTRUCTIONS, "ALUFULL" }, +}; + +struct msm_gpu *a3xx_gpu_init(struct drm_device *dev) +{ + struct a3xx_gpu *a3xx_gpu = NULL; + struct adreno_gpu *adreno_gpu; + struct msm_gpu *gpu; + struct msm_drm_private *priv = dev->dev_private; + struct platform_device *pdev = priv->gpu_pdev; + int ret; + + if (!pdev) { + dev_err(dev->dev, "no a3xx device\n"); + ret = -ENXIO; + goto fail; + } + + a3xx_gpu = kzalloc(sizeof(*a3xx_gpu), GFP_KERNEL); + if (!a3xx_gpu) { + ret = -ENOMEM; + goto fail; + } + + adreno_gpu = &a3xx_gpu->base; + gpu = &adreno_gpu->base; + + gpu->perfcntrs = perfcntrs; + gpu->num_perfcntrs = ARRAY_SIZE(perfcntrs); + + adreno_gpu->registers = a3xx_registers; + adreno_gpu->reg_offsets = a3xx_register_offsets; + + ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1); + if (ret) + goto fail; + + /* if needed, allocate gmem: */ + if (adreno_is_a330(adreno_gpu)) { +#ifdef CONFIG_MSM_OCMEM + /* TODO this is different/missing upstream: */ + struct ocmem_buf *ocmem_hdl = + ocmem_allocate(OCMEM_GRAPHICS, adreno_gpu->gmem); + + a3xx_gpu->ocmem_hdl = ocmem_hdl; + a3xx_gpu->ocmem_base = ocmem_hdl->addr; + adreno_gpu->gmem = ocmem_hdl->len; + DBG("using %dK of OCMEM at 0x%08x", adreno_gpu->gmem / 1024, + a3xx_gpu->ocmem_base); +#endif + } + + if (!gpu->aspace) { + /* TODO we think it is possible to configure the GPU to + * restrict access to VRAM carveout. But the required + * registers are unknown. For now just bail out and + * limp along with just modesetting. If it turns out + * to not be possible to restrict access, then we must + * implement a cmdstream validator. + */ + dev_err(dev->dev, "No memory protection without IOMMU\n"); + ret = -ENXIO; + goto fail; + } + + return gpu; + +fail: + if (a3xx_gpu) + a3xx_destroy(&a3xx_gpu->base.base); + + return ERR_PTR(ret); +} |