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linux/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
Bjorn Andersson 79d57bf6fa drm/msm: Trigger fence completion from GPU 
Interrupt commands causes the CP to trigger an interrupt as the command
is processed, regardless of the GPU being done processing previous
commands. This is seen by the interrupt being delivered before the
fence is written on 8974 and is likely the cause of the additional
CP_WAIT_FOR_IDLE workaround found for a306, which would cause the CP to
wait for the GPU to go idle before triggering the interrupt.

Instead we can set the (undocumented) BIT(31) of the CACHE_FLUSH_TS
which will cause a special CACHE_FLUSH_TS interrupt to be triggered from
the GPU as the write event is processed.

Add CACHE_FLUSH_TS to the IRQ masks of A3xx and A4xx and remove the
workaround for A306.

Suggested-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-03-19 06:33:36 -04:00

536 lines
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/*
* 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, 0x2348, 0x2349, 0x2350, 0x2356,
0x2360, 0x2360, 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, 0x2748, 0x2749,
0x2750, 0x2756, 0x2760, 0x2760, 0x300c, 0x300e, 0x301c, 0x301d,
0x302a, 0x302a, 0x302c, 0x302d, 0x3030, 0x3031, 0x3034, 0x3036,
0x303c, 0x303c, 0x305e, 0x305f,
~0 /* sentinel */
};
#ifdef CONFIG_DEBUG_FS
static void a3xx_show(struct msm_gpu *gpu, struct seq_file *m)
{
seq_printf(m, "status: %08x\n",
gpu_read(gpu, REG_A3XX_RBBM_STATUS));
adreno_show(gpu, m);
}
#endif
/* 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);
}
/* 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,
#ifdef CONFIG_DEBUG_FS
.show = a3xx_show,
#endif
},
};
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);
}
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