Re: [PATCH v2 13/13] drm/msm/adreno: Switch to chip-id for identifying GPU

2023-08-04 Thread Dmitry Baryshkov
On Fri, 28 Jul 2023 at 00:23, Rob Clark  wrote:
>
> From: Rob Clark 
>
> Since the revision becomes an opaque identifier with future GPUs, move
> away from treating different ranges of bits as having a given meaning.
> This means that we need to explicitly list different patch revisions in
> the device table.
>
> Signed-off-by: Rob Clark 
> ---
>  drivers/gpu/drm/msm/adreno/a4xx_gpu.c  |   2 +-
>  drivers/gpu/drm/msm/adreno/a5xx_gpu.c  |   2 +-
>  drivers/gpu/drm/msm/adreno/a5xx_power.c|   2 +-
>  drivers/gpu/drm/msm/adreno/a6xx_gmu.c  |  14 ++-
>  drivers/gpu/drm/msm/adreno/adreno_device.c | 137 +++--
>  drivers/gpu/drm/msm/adreno/adreno_gpu.c|  14 +--
>  drivers/gpu/drm/msm/adreno/adreno_gpu.h|  49 
>  7 files changed, 115 insertions(+), 105 deletions(-)

Reviewed-by: Dmitry Baryshkov 


-- 
With best wishes
Dmitry


[PATCH v2 13/13] drm/msm/adreno: Switch to chip-id for identifying GPU

2023-07-27 Thread Rob Clark
From: Rob Clark 

Since the revision becomes an opaque identifier with future GPUs, move
away from treating different ranges of bits as having a given meaning.
This means that we need to explicitly list different patch revisions in
the device table.

Signed-off-by: Rob Clark 
---
 drivers/gpu/drm/msm/adreno/a4xx_gpu.c  |   2 +-
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c  |   2 +-
 drivers/gpu/drm/msm/adreno/a5xx_power.c|   2 +-
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c  |  14 ++-
 drivers/gpu/drm/msm/adreno/adreno_device.c | 137 +++--
 drivers/gpu/drm/msm/adreno/adreno_gpu.c|  14 +--
 drivers/gpu/drm/msm/adreno/adreno_gpu.h|  49 
 7 files changed, 115 insertions(+), 105 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
index 715436cb3996..8b4cdf95f445 100644
--- a/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a4xx_gpu.c
@@ -145,7 +145,7 @@ static void a4xx_enable_hwcg(struct msm_gpu *gpu)
gpu_write(gpu, REG_A4XX_RBBM_CLOCK_DELAY_HLSQ, 0x0022);
/* Early A430's have a timing issue with SP/TP power collapse;
   disabling HW clock gating prevents it. */
-   if (adreno_is_a430(adreno_gpu) && adreno_gpu->rev.patchid < 2)
+   if (adreno_is_a430(adreno_gpu) && adreno_patchid(adreno_gpu) < 2)
gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL, 0);
else
gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL, 0x);
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index f0803e94ebe5..a98c97977e01 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -1770,7 +1770,7 @@ struct msm_gpu *a5xx_gpu_init(struct drm_device *dev)
 
nr_rings = 4;
 
-   if (adreno_cmp_rev(ADRENO_REV(5, 1, 0, ANY_ID), config->rev))
+   if (config->info->revn == 510)
nr_rings = 1;
 
ret = adreno_gpu_init(dev, pdev, adreno_gpu, , nr_rings);
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_power.c 
b/drivers/gpu/drm/msm/adreno/a5xx_power.c
index 0e63a1429189..7705f8010484 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_power.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c
@@ -179,7 +179,7 @@ static void a540_lm_setup(struct msm_gpu *gpu)
 
/* The battery current limiter isn't enabled for A540 */
config = AGC_LM_CONFIG_BCL_DISABLED;
-   config |= adreno_gpu->rev.patchid << AGC_LM_CONFIG_GPU_VERSION_SHIFT;
+   config |= adreno_patchid(adreno_gpu) << AGC_LM_CONFIG_GPU_VERSION_SHIFT;
 
/* For now disable GPMU side throttling */
config |= AGC_LM_CONFIG_THROTTLE_DISABLE;
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c 
b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index f1bb20574018..bf7f855f4a34 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -790,10 +790,16 @@ static int a6xx_gmu_fw_start(struct a6xx_gmu *gmu, 
unsigned int state)
gmu_write(gmu, REG_A6XX_GMU_AHB_FENCE_RANGE_0,
(1 << 31) | (0xa << 18) | (0xa0));
 
-   chipid = adreno_gpu->rev.core << 24;
-   chipid |= adreno_gpu->rev.major << 16;
-   chipid |= adreno_gpu->rev.minor << 12;
-   chipid |= adreno_gpu->rev.patchid << 8;
+   /*
+* Note that the GMU has a slightly different layout for
+* chip_id, for whatever reason, so a bit of massaging
+* is needed.  The upper 16b are the same, but minor and
+* patchid are packed in four bits each with the lower
+* 8b unused:
+*/
+   chipid  = adreno_gpu->chip_id & 0x;
+   chipid |= (adreno_gpu->chip_id << 4) & 0xf000; /* minor */
+   chipid |= (adreno_gpu->chip_id << 8) & 0x0f00; /* patchid */
 
gmu_write(gmu, REG_A6XX_GMU_HFI_SFR_ADDR, chipid);
 
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c 
b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 332cb804a45d..9cda403ebc7b 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -22,7 +22,7 @@ module_param_named(allow_vram_carveout, allow_vram_carveout, 
bool, 0600);
 
 static const struct adreno_info gpulist[] = {
{
-   .rev   = ADRENO_REV(2, 0, 0, 0),
+   .chip_ids = ADRENO_CHIP_IDS(0x0200),
.family = ADRENO_2XX_GEN1,
.revn  = 200,
.fw = {
@@ -33,7 +33,7 @@ static const struct adreno_info gpulist[] = {
.inactive_period = DRM_MSM_INACTIVE_PERIOD,
.init  = a2xx_gpu_init,
}, { /* a200 on i.mx51 has only 128kib gmem */
-   .rev   = ADRENO_REV(2, 0, 0, 1),
+   .chip_ids = ADRENO_CHIP_IDS(0x0201),
.family = ADRENO_2XX_GEN1,
.revn  = 201,
.fw = {
@@ -44,7 +44,7 @@ static const struct adreno_info gpulist[] = {
.inactive_period =