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drm/msm/adreno: Add support for Adreno 510 GPU 

The Adreno 510 GPU is a stripped version of the Adreno 5xx,
found in low-end SoCs like 8x56 and 8x76, which has 256K of
GMEM, with no GPMU nor ZAP.
Also, since the Adreno 5xx part of this driver seems to be
developed with high-end Adreno GPUs in mind, and since this
is a lower end one, add a comment making clear which GPUs
which support is not implemented yet is not using the GPMU
related hw init code, so that future developers will not go
crazy with that.

By the way, the lower end Adreno GPUs with no GPMU are:
A505/A506/A510 (usually no ZAP firmware)
A508/A509/A512 (usually with ZAP firmware)

Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
AngeloGioacchino Del Regno 2019-10-31 11:44:02 +01:00 committed by Rob Clark
parent 3f3c8aff1f
commit e20c9284c8
4 changed files with 86 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
drivers/gpu/drm/msm/adreno/a5xx_gpu.c
View File

@ -353,6 +353,9 @@ static int a5xx_me_init(struct msm_gpu *gpu)
* 2D mode 3 draw
*/
OUT_RING(ring, 0x0000000B);
} else if (adreno_is_a510(adreno_gpu)) {
/* Workaround for token and syncs */
OUT_RING(ring, 0x00000001);
} else {
/* No workarounds enabled */
OUT_RING(ring, 0x00000000);
@ -568,6 +571,14 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
0x00100000 + adreno_gpu->gmem - 1);
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_HI, 0x00000000);
if (adreno_is_a510(adreno_gpu)) {
gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x20);
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x20);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x40000030);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x20100D0A);
gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL,
(0x200 << 11 | 0x200 << 22));
} else {
gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x40);
if (adreno_is_a530(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x40);
@ -575,8 +586,9 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x400);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x80000060);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x40201B16);
gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL, (0x400 << 11 | 0x300 << 22));
gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL,
(0x400 << 11 | 0x300 << 22));
}
if (adreno_gpu->info->quirks & ADRENO_QUIRK_TWO_PASS_USE_WFI)
gpu_rmw(gpu, REG_A5XX_PC_DBG_ECO_CNTL, 0, (1 << 8));
@ -589,6 +601,19 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
/* Enable ME/PFP split notification */
gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL1, 0xA6FFFFFF);
/*
* In A5x, CCU can send context_done event of a particular context to
* UCHE which ultimately reaches CP even when there is valid
* transaction of that context inside CCU. This can let CP to program
* config registers, which will make the "valid transaction" inside
* CCU to be interpreted differently. This can cause gpu fault. This
* bug is fixed in latest A510 revision. To enable this bug fix -
* bit[11] of RB_DBG_ECO_CNTL need to be set to 0, default is 1
* (disable). For older A510 version this bit is unused.
*/
if (adreno_is_a510(adreno_gpu))
gpu_rmw(gpu, REG_A5XX_RB_DBG_ECO_CNTL, (1 << 11), 0);
/* Enable HWCG */
a5xx_set_hwcg(gpu, true);
@ -635,7 +660,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
/* UCHE */
gpu_write(gpu, REG_A5XX_CP_PROTECT(16), ADRENO_PROTECT_RW(0xE80, 16));
if (adreno_is_a530(adreno_gpu))
if (adreno_is_a530(adreno_gpu) || adreno_is_a510(adreno_gpu))
gpu_write(gpu, REG_A5XX_CP_PROTECT(17),
ADRENO_PROTECT_RW(0x10000, 0x8000));
@ -679,6 +704,7 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
a5xx_preempt_hw_init(gpu);
if (!adreno_is_a510(adreno_gpu))
a5xx_gpmu_ucode_init(gpu);
ret = a5xx_ucode_init(gpu);
@ -712,7 +738,8 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
}
/*
* Try to load a zap shader into the secure world. If successful
* If the chip that we are using does support loading one, then
* try to load a zap shader into the secure world. If successful
* we can use the CP to switch out of secure mode. If not then we
* have no resource but to try to switch ourselves out manually. If we
* guessed wrong then access to the RBBM_SECVID_TRUST_CNTL register will
@ -1066,6 +1093,7 @@ static void a5xx_dump(struct msm_gpu *gpu)
static int a5xx_pm_resume(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
int ret;
/* Turn on the core power */
@ -1073,6 +1101,15 @@ static int a5xx_pm_resume(struct msm_gpu *gpu)
if (ret)
return ret;
if (adreno_is_a510(adreno_gpu)) {
/* Halt the sp_input_clk at HM level */
gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0x00000055);
a5xx_set_hwcg(gpu, true);
/* Turn on sp_input_clk at HM level */
gpu_rmw(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0xff, 0);
return 0;
}
/* Turn the RBCCU domain first to limit the chances of voltage droop */
gpu_write(gpu, REG_A5XX_GPMU_RBCCU_POWER_CNTL, 0x778000);
@ -1101,9 +1138,17 @@ static int a5xx_pm_resume(struct msm_gpu *gpu)
static int a5xx_pm_suspend(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
u32 mask = 0xf;
/* A510 has 3 XIN ports in VBIF */
if (adreno_is_a510(adreno_gpu))
mask = 0x7;
/* Clear the VBIF pipe before shutting down */
gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0xF);
spin_until((gpu_read(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL1) & 0xF) == 0xF);
gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, mask);
spin_until((gpu_read(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL1) &
mask) == mask);
gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0);

7
drivers/gpu/drm/msm/adreno/a5xx_power.c
View File

@ -297,6 +297,10 @@ int a5xx_power_init(struct msm_gpu *gpu)
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
int ret;
/* Not all A5xx chips have a GPMU */
if (adreno_is_a510(adreno_gpu))
return 0;
/* Set up the limits management */
if (adreno_is_a530(adreno_gpu))
a530_lm_setup(gpu);
@ -326,6 +330,9 @@ void a5xx_gpmu_ucode_init(struct msm_gpu *gpu)
unsigned int *data, *ptr, *cmds;
unsigned int cmds_size;
if (adreno_is_a510(adreno_gpu))
return;
if (a5xx_gpu->gpmu_bo)
return;

15
drivers/gpu/drm/msm/adreno/adreno_device.c
View File

@ -114,6 +114,21 @@ static const struct adreno_info gpulist[] = {
.gmem = (SZ_1M + SZ_512K),
.inactive_period = DRM_MSM_INACTIVE_PERIOD,
.init = a4xx_gpu_init,
}, {
.rev = ADRENO_REV(5, 1, 0, ANY_ID),
.revn = 510,
.name = "A510",
.fw = {
[ADRENO_FW_PM4] = "a530_pm4.fw",
[ADRENO_FW_PFP] = "a530_pfp.fw",
},
.gmem = SZ_256K,
/*
* Increase inactive period to 250 to avoid bouncing
* the GDSC which appears to make it grumpy
*/
.inactive_period = 250,
.init = a5xx_gpu_init,
}, {
.rev = ADRENO_REV(5, 3, 0, 2),
.revn = 530,

5
drivers/gpu/drm/msm/adreno/adreno_gpu.h
View File

@ -212,6 +212,11 @@ static inline int adreno_is_a430(struct adreno_gpu *gpu)
return gpu->revn == 430;
}
static inline int adreno_is_a510(struct adreno_gpu *gpu)
{
return gpu->revn == 510;
}
static inline int adreno_is_a530(struct adreno_gpu *gpu)
{
return gpu->revn == 530;