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imlib/draw: Add missing speculative read invalidates.
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072db9647e
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4110022e5d
@ -801,7 +801,7 @@ void imlib_draw_row_setup(imlib_draw_row_data_t *data) {
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cfg.pCLUT = clut;
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cfg.CLUTColorMode = DMA2D_CCM_ARGB8888;
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cfg.Size = 255;
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#if defined(MCU_SERIES_F7) || defined(MCU_SERIES_H7)
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#if __DCACHE_PRESENT
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SCB_CleanDCache_by_Addr(clut, 256 * sizeof(uint32_t));
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#endif
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HAL_DMA2D_CLUTLoad(&data->dma2d, cfg, 1);
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@ -828,6 +828,10 @@ void imlib_draw_row_setup(imlib_draw_row_data_t *data) {
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data->dma2d.LayerCfg[1].ChromaSubSampling = DMA2D_NO_CSS;
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#endif
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HAL_DMA2D_ConfigLayer(&data->dma2d, 1);
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#if __DCACHE_PRESENT
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// SCB_InvalidateDCache_by_Addr does nothing if dsize is 0.
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data->dma2d_invalidate_dsize = 0;
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#endif
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} else {
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data->row_buffer[1] = data->row_buffer[0];
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}
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@ -866,6 +870,10 @@ void imlib_draw_row_teardown(imlib_draw_row_data_t *data) {
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if (data->dma2d_initialized) {
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if (!data->callback) {
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HAL_DMA2D_PollForTransfer(&data->dma2d, 1000);
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#if __DCACHE_PRESENT
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// Ensures any cached reads to dst16 are dropped.
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr, data->dma2d_invalidate_dsize);
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#endif
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}
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HAL_DMA2D_DeInit(&data->dma2d);
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if (data->src_img_pixfmt == PIXFORMAT_GRAYSCALE) {
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@ -2379,15 +2387,24 @@ void imlib_draw_row(int x_start, int x_end, int y_row, imlib_draw_row_data_t *da
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if (data->dma2d_enabled) {
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if (!data->callback) {
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HAL_DMA2D_PollForTransfer(&data->dma2d, 1000);
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#if __DCACHE_PRESENT
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// Ensures any cached reads to dst16 are dropped.
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr,
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data->dma2d_invalidate_dsize);
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#endif
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}
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#if defined(MCU_SERIES_F7) || defined(MCU_SERIES_H7)
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#if __DCACHE_PRESENT
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// Memory referenced by src8 between (x_end - x_start) may or may not be
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// cache algined. However, after being flushed it shouldn't change again
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// so DMA2D can safety read the line of pixels.
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SCB_CleanDCache_by_Addr((uint32_t *) src8, (x_end - x_start) * sizeof(uint8_t));
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// DMA2D will overwrite this area. dst16 (x_end - x_start) must be cache
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// aligned or the line of pixels will be corrutped.
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SCB_InvalidateDCache_by_Addr((uint32_t *) dst16, (x_end - x_start) * sizeof(uint16_t));
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// Ensures any cached writes to dst16 are dropped.
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data->dma2d_invalidate_addr = (uint32_t *) dst16;
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data->dma2d_invalidate_dsize = (x_end - x_start) * sizeof(uint16_t);
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr,
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data->dma2d_invalidate_dsize);
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#endif
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HAL_DMA2D_BlendingStart(&data->dma2d,
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(uint32_t) src8,
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@ -2397,6 +2414,11 @@ void imlib_draw_row(int x_start, int x_end, int y_row, imlib_draw_row_data_t *da
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1);
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if (data->callback) {
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HAL_DMA2D_PollForTransfer(&data->dma2d, 1000);
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#if __DCACHE_PRESENT
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// Ensures any cached reads to dst16 are dropped.
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr,
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data->dma2d_invalidate_dsize);
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#endif
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}
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} else if (data->smuad_alpha_palette) {
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#else
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@ -2550,15 +2572,24 @@ void imlib_draw_row(int x_start, int x_end, int y_row, imlib_draw_row_data_t *da
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if (data->dma2d_enabled) {
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if (!data->callback) {
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HAL_DMA2D_PollForTransfer(&data->dma2d, 1000);
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#if __DCACHE_PRESENT
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// Ensures any cached reads to dst16 are dropped.
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr,
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data->dma2d_invalidate_dsize);
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#endif
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}
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#if defined(MCU_SERIES_F7) || defined(MCU_SERIES_H7)
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#if __DCACHE_PRESENT
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// Memory referenced by src16 between (x_end - x_start) may or may not be
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// cache algined. However, after being flushed it shouldn't change again
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// so DMA2D can safety read the line of pixels.
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SCB_CleanDCache_by_Addr((uint32_t *) src16, (x_end - x_start) * sizeof(uint16_t));
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// DMA2D will overwrite this area. dst16 (x_end - x_start) must be cache
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// aligned or the line of pixels will be corrutped.
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SCB_InvalidateDCache_by_Addr((uint32_t *) dst16, (x_end - x_start) * sizeof(uint16_t));
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// Ensures any cached writes to dst16 are dropped.
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data->dma2d_invalidate_addr = (uint32_t *) dst16;
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data->dma2d_invalidate_dsize = (x_end - x_start) * sizeof(uint16_t);
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr,
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data->dma2d_invalidate_dsize);
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#endif
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HAL_DMA2D_BlendingStart(&data->dma2d,
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(uint32_t) src16,
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@ -2568,6 +2599,11 @@ void imlib_draw_row(int x_start, int x_end, int y_row, imlib_draw_row_data_t *da
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1);
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if (data->callback) {
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HAL_DMA2D_PollForTransfer(&data->dma2d, 1000);
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#if __DCACHE_PRESENT
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// Ensures any cached reads to dst16 are dropped.
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SCB_InvalidateDCache_by_Addr(data->dma2d_invalidate_addr,
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data->dma2d_invalidate_dsize);
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#endif
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}
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} else if (!data->black_background) {
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#else
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@ -1143,6 +1143,10 @@ typedef struct imlib_draw_row_data {
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bool dma2d_enabled; // private
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bool dma2d_initialized; // private
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DMA2D_HandleTypeDef dma2d; // private
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#if __DCACHE_PRESENT
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void *dma2d_invalidate_addr; // private
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int32_t dma2d_invalidate_dsize; // private
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#endif
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#endif
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long smuad_alpha; // private
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uint32_t *smuad_alpha_palette; // private
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